CN112481480B

CN112481480B - Synchronous translation and positioning control method for moving frame of billet heating furnace feeder

Info

Publication number: CN112481480B
Application number: CN202011238871.9A
Authority: CN
Inventors: 叶光平; 徐洪; 徐建平
Original assignee: Maanshan Iron and Steel Co Ltd
Current assignee: Maanshan Iron and Steel Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2022-03-29
Anticipated expiration: 2040-11-09
Also published as: CN112481480A

Abstract

The invention discloses a synchronous translation and positioning control method for a moving frame of a billet heating furnace feeder, and belongs to the technical field of electric transmission control. The invention comprises the following steps: a synchronous translation control program of a moving frame of a driving section of a feeding machine of the billet heating furnace and a synchronous translation control program of a moving frame of a driven section of the feeding machine of the billet heating furnace. The invention can control the synchronous position deviation of the main moving frame and the driven moving frame within the set position deviation range under the condition that the driving moving frame or the driven moving frame is not seriously clamped, and can control the maximum position deviation between the main moving frame and the driven moving frame within the walking distance in the braking process of the moving frame when the driving moving frame or the driven moving frame is seriously clamped, so that the moving frame of the heating furnace feeder can be synchronously translated and controlled with high precision, high robustness and high fault tolerance.

Description

Synchronous translation and positioning control method for moving frame of billet heating furnace feeder

Technical Field

The invention relates to the technical field of electric transmission control, in particular to a synchronous translation and positioning control method for a moving frame of a feeding machine of a billet heating furnace.

Background

For a billet heating furnace feeder driven by a motor, the feeder is generally designed into two sections of independent moving frames, each section of moving frame is driven by one motor, an encoder for detecting speed and position is installed on a driving motor of each section of moving frame, and in order to facilitate synchronous movement of the two sections of independent moving frames of the feeder, a mode of a coupler and a clutch is adopted to rigidly connect driving motors of the two sections of moving frames of the feeder. One of the rows is a steel billet heating furnace feeder driven by a steel-frame heavy H-shaped steel motor. In view of the fact that a certain distance exists between the driving motors of the two sections of the moving frames of the feeder, absolute synchronization of the two sections of the independent moving frames is difficult to guarantee through the connection mode of the coupler and the clutch, and therefore in the actual operation process, the frequency conversion transmission device of the driving motors of the two sections of the moving frames of the feeder frequently has the fault of instantaneous overcurrent and power skipping due to the fact that the two sections of the moving frames are not dynamically synchronized. Based on this, the two-section moving frame driving motor of the feeder usually adopts a non-rigid connection operation mode. However, for the synchronous control of the two sections of moving frames of the feeder, although the adoption of various existing synchronous control modes can avoid the frequent occurrence of instantaneous overcurrent and trip faults due to the dynamic asynchronization of the two sections of moving frames of the motor variable frequency transmission device, the continuous and stable synchronous movement of the two sections of moving frames of the feeder cannot be realized under the condition of uneven moving resistance of the two sections of moving frames of the feeder.

Disclosure of Invention

The invention aims to provide a synchronous translation and positioning control method for a moving frame of a billet heating furnace feeder, which aims to enable the moving frame of the billet heating furnace feeder to obtain synchronous translation control with high precision, high robustness and high fault tolerance so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a synchronous translation and positioning control method for a moving frame of a feeder of a billet heating furnace is characterized in that a synchronous translation control program for the moving frame of the feeder of the billet heating furnace consists of two parts, namely a synchronous translation control program for a moving frame of a driving section and a synchronous translation control program for a moving frame of a driven section, wherein the synchronous translation control program for the moving frame of the driving section of the feeder of the billet heating furnace consists of four control units, namely functional blocks JJJCDTC 01-JCDTC 03 form a fault detection unit of a feeder control system; the functional blocks JJCDTC 11-JCDTC 13, JJCDTC17, JJCDTC 20-JCDTC 32, JCDTC35 and JCDTC36 form an automatic linkage control unit of the active section moving frame of the feeder; the functional blocks JJCDTC 04-JCDTC 16, JJCDTC 18-JCDTC 20, JJCDTC33, JCDTC35 and JCDTC36 form a manual linkage control unit of the moving frame of the active section of the feeder; the functional blocks JJCDTC 04-JCDTC 10, JJCDTC 18-JCDTC 20 and JJCDTC 34-JCDTC 36 form a manual single-action control unit of the moving frame of the active section of the feeder; the synchronous translation control program of the moving frame of the driven section of the billet heating furnace feeder consists of three control units, namely a function block JJCDTC 51-JJCDTC 53, JJJCDTC 57, JJJCDTC 60-JCDTC 72, JJCDTC75 and JCDTC76 form an automatic linkage control unit of the moving frame of the driven section of the feeder; the functional blocks JJCDTC 51-JCDTC 56, JJCDTC 58-JCDTC 60, JJCDTC73, JCDTC75 and JCDTC76 form a manual linkage control unit of the moving frame of the driven section of the feeder; the functional blocks JJCDTC 58-JCDTC 60 and JJCDTC 74-JCDTC 76 form a manual single-action control unit of the moving frame of the driven section of the feeder; the synchronous translation and positioning control method for the moving frame of the billet heating furnace feeder comprises the following steps: the synchronous translation control program of the driving section moving frame and the synchronous translation control program of the driven section moving frame, wherein:

the synchronous translation control program of the active section moving frame adopts the following steps:

a1, for a feeder control system fault detection unit, as can be seen from a control program structure diagram of the unit, under the condition that a driving section moving frame transmission device and a position detection encoder of a feeder and a driven section moving frame transmission device and a position detection encoder of the feeder are not in fault and the feeder is not in tight stop, the states of a point A and a point B in the unit are respectively in a '0' state and a '1' state, and conversely, the states of the point A and the point B are respectively in a '1' state and a '0' state, so that the unit sends out feeder control system fault information;

a2, for a feeder active section moving frame automatic linkage control unit, when a difference value between a feeder active section moving frame actual position value and a feeder active section moving frame position given value is beyond a positioning deviation range allowed by a feeder moving frame under the condition that a feeder master and slave section moving frame is in an automatic linkage mode and a feeder control system has no fault, output ends Q of functional blocks JJJCDTC 32, JJJCDTC 17 and JJCDTC20 in the unit are all changed from '0' state to '1' state, therefore, the unit outputs 'a feeder active section moving frame transmission device operation enabling signal', thus, in the automatic advancing process of the feeder master and slave section moving frame, the unit realizes the automatic advancing speed selection and master and slave section moving frame advancing synchronous control of the feeder active section moving frame through the functional blocks JCDTC 22-JCDTC 26, namely in the advancing process of the feeder master and slave section moving frame, when the difference value between the position set value of the feeder moving frame and the actual position value of the feeder active section moving frame is greater than or equal to 100 mm, the output end Y of the functional block JJCDTC23 in the unit is equal to the high-speed forward speed set value of the feeder moving frame, and when the difference value between the position set value of the feeder moving frame and the actual position value of the feeder active section moving frame is less than 100 mm, namely the actual position value of the feeder active section moving frame is close to the position set value of the feeder moving frame, the output end Y of the functional block JCDTC23 in the unit is switched from the high-speed forward speed set value of the feeder moving frame to the low-speed forward speed set value of the feeder moving frame, so that the accurate positioning of the feeder active section moving frame is facilitated; when the forward speed of the main section moving frame of the feeder is high speed or low speed, and the difference between the two position values is larger than the set allowable deviation value of synchronous control, the output QU of the functional block JCDTC12 in the unit will change from '1' state to '0' state, so that the output Y of the functional block JJJCDTC 26 in the unit will be switched from the high speed or low speed forward speed set value of the main section moving frame of the feeder to zero, the forward speed set value of the unit output to the transmission device of the main section moving frame of the feeder through the integrator functional block JJJCDTC 36 will gradually decrease until the difference between the actual position values of the main section moving frame of the feeder and the driven section moving frame of the feeder is smaller than or equal to the set allowable deviation value of synchronous control, that is, the output QU of the functional block JCDTC12 changes from '0' state to '1' state, then, if the difference value between the position set value of the moving frame of the feeder and the actual position value of the moving frame of the active section of the feeder still exceeds the allowable positioning deviation range of the moving frame of the feeder, the feeder active leg moving frame will accelerate toward the feeder active leg moving frame forward speed set point output by output terminal Y of function block jcdtc23, however, in the process of advancing and accelerating the moving frame of the driving section of the feeder, if the moving frame of the driving section of the feeder advances the moving frame of the driven section and the difference between the position values of the two is larger than the set allowable deviation value of synchronous control, the automatic linkage control unit of the driving section moving frame of the feeder repeats the control, so that the driving section moving frame of the feeder cannot lead the driven section moving frame to exceed the process allowable synchronous deviation range of the driving section moving frame and the driven section moving frame of the feeder in the advancing process of the feeder; similarly, in the process of automatically backing up the moving frame of the main and the subordinate sections of the feeder, the unit realizes the automatic backing-up speed selection of the moving frame of the active section of the feeder and the synchronous backing-up control of the moving frame of the main and the subordinate sections through the functional blocks JJJCDTC 27-JJCDTC 31, namely, in the process of backing up the moving frame of the main and the subordinate sections of the feeder, when the difference value between the given value of the position of the moving frame of the feeder and the actual value of the moving frame of the active section of the feeder is smaller than or equal to-100 mm, the output end Y of the functional block JJCDTC28 in the unit is equal to the set value of the high-speed backing-up speed of the moving frame of the feeder, and when the difference value between the position of the moving frame of the active section of the feeder and the actual value of the moving frame of the feeder is larger than-100 mm, namely, the actual value of the moving frame of the active section of the feeder is close to the given value of the position of the moving frame of the feeder, the output end Y of the functional block JCDTC28 in the unit is switched from the set value of the high-speed backing-speed of the moving frame of the feeder to the low-speed backing-up of the feeding machine, so as to facilitate the accurate positioning of the moving frame of the active section of the feeder; when the backward moving frame of the active section of the feeder moves forward and backward at a high speed or a low speed, and the difference between the position values of the active section moving frame and the driven section moving frame is smaller than the set allowable deviation value of the synchronous control, the output QL of the functional block JCDTC13 in the unit will change from '1' state to '0' state, so that the output Y of the functional block JJJCDTC 31 in the unit will be switched from the high or low speed backward moving set value of the active section moving frame of the feeder to zero, the backward speed set value of the unit output to the driving section moving frame transmission device of the feeder through the integrator functional block JJCDTC36 will gradually decrease until the difference between the actual position values of the active section and the driven section moving frame of the feeder is greater than or equal to the set allowable deviation value of the synchronous control, that is, that the output QL of the functional block JCDTC13 changes from '0' state to '1' state, then, if the difference value between the position set value of the moving frame of the feeder and the actual position value of the moving frame of the active section of the feeder still exceeds the allowable positioning deviation range of the moving frame of the feeder, the feeder active leg moving frame will accelerate toward the feeder active leg moving frame back speed set point output by output Y of function block jcdtc28, however, in the process of backing up and accelerating the moving frame of the driving section of the feeder, if the position value difference between the moving frame of the driving section of the feeder and the moving frame of the driven section of the feeder is smaller than the set allowable deviation value of synchronous control, the automatic linkage control unit of the driving section moving frame of the feeder repeats the control, so that the driving section moving frame cannot exceed the synchronous deviation range allowed by the process of the driving section moving frame and the driven section moving frame of the feeder in the backward process of the feeder;

a3, for a feeder active section moving frame manual linkage control unit, when a feeder operator sends a feeder forward or backward command when a feeder main and secondary section moving frame is in a manual linkage mode and a feeder control system has no fault, the output end Q of a functional block JJCDTC10, a functional block JJCDTC19 and a functional block JCDTC20 in the unit change from '0' state to '1' state, thereby the unit outputs a 'feeder active section moving frame transmission operation enabling signal', so that if the feeder active section moving frame advances ahead of the driven section moving frame and the difference between the two position values is greater than or equal to a set synchronous control allowable deviation value, the output end Q of the functional block JCDTC16 in the unit changes from '1' state to '0' state, and thus the output end Y of the functional block JCDTC33 in the unit changes from the feeder active section moving frame to the fast or slow moving frame speed manually Switching to zero, the unit will gradually decrease the forward speed set value outputted to the driving section moving frame transmission device of the feeder through the integrator function block JJCDTC36 until the difference between the actual position values of the driving section and the driven section moving frame of the feeder is smaller than the set allowable deviation value of synchronous control, i.e. the output QL of the function block JCDTC12 changes from '0' state to '1' state, after that, the driving section moving frame of the feeder will accelerate towards the manual forward speed set value of the driving section moving frame of the feeder outputted by the output Y of the function block JCDTC08, but in the process of the forward acceleration of the driving section moving frame of the feeder, if the driving section moving frame of the feeder advances the driven section moving frame again and the difference between the two position values is larger than or equal to the set allowable deviation value of synchronous control, the manual linkage control unit of the driving section moving frame of the feeder will repeat the above control, therefore, the driving section moving frame of the feeder cannot exceed the synchronous deviation range allowed by the process of the driving section moving frame and the driven section moving frame of the feeder due to the fact that the driving section moving frame and the driven section moving frame are too much in the manual linkage advancing process; similarly, in the process of fast or slow backward movement of the moving frame of the active section of the feeder, if the moving frame of the active section of the feeder leads the moving frame of the driven section and the difference between the position values is less than or equal to the set allowable deviation value of synchronous control, the output Q of the functional block JCDTC16 in the unit will be changed from '1' state to '0' state, so that the output Y of the functional block JJCDTC33 in the unit will be switched to zero from the set value of fast or slow backward speed manually moved by the moving frame of the active section of the feeder, the backward speed set value outputted by the unit to the driving frame transmission device of the active section of the feeder through the integrator functional block JJCDTC36 will be gradually reduced until the difference between the actual position values of the driving section and the moving frame of the driven section of the feeder is greater than the set allowable deviation value of synchronous control, that is, the output QU of the functional block JCDTC13 is changed from '0' state to '1', and then the moving frame moving toward the output JCDTC 08Y of the active section of the feeder will be gradually reduced The backward speed set value is accelerated, but in the process of the backward acceleration of the moving frame of the driving section of the feeder, if the moving frame of the driving section of the feeder leads the moving frame of the driven section and the difference between the position values of the moving frame of the driving section of the feeder and the position values of the moving frame of the driven section of the feeder is smaller than or equal to the set synchronous control allowable deviation value, the manual linkage control unit of the moving frame of the driving section of the feeder repeats the control, so that the situation that the moving frame of the driving section of the feeder does not lead the moving frame of the driven section too much to exceed the process allowable synchronous deviation range of the moving frame of the driving section and the driven section of the feeder in the process of the backward manual linkage of the feeder is ensured;

a4, for a feeder active section moving frame manual single-action control unit, when a feeder operator sends a feeder forward or backward command under the condition that the feeder active section moving frame is in a manual single-action mode and a feeder control system has no fault, the output end Q of a function block JJJCDTC 10, and the output ends Q of function blocks JJCDTC19 and JCDTC20 in the unit are changed from a '0' state to a '1' state; thus, the unit outputs 'a feeder active section moving frame driving device operation enabling signal', and at the same time, the output end Y of the function block jjjcdtc 34 in the unit will be equal to the feeder moving frame manual advance or retreat speed set value, and the feeder moving frame manual advance or retreat speed set value is output to the feeder active section moving frame driving device through the integrator function block jcdtc36 in the unit, so as to realize the feeder active section fast or slow advance and retreat operation;

the synchronous translation control program of the driven section moving frame adopts the following steps:

b1, for the automatic linkage control unit of the feeder driven section moving frame, when the difference between the given value of the feeder moving frame position and the actual value of the feeder driven section moving frame position is beyond the allowable range of positioning deviation of the feeder moving frame under the condition that the feeder master-slave section moving frame is in an automatic linkage mode and the feeder control system is not in fault, the output ends Q of the functional blocks JJJJCDTC 72, JJJCDTC 57 and JJCDTC60 in the unit are all changed from '0' state to '1' state, therefore, the unit outputs 'the enabling signal for the operation of the feeder driven section moving frame transmission device', thus, in the automatic forward process of the feeder master-slave section moving frame, the unit realizes the automatic forward speed selection of the feeder driven section moving frame and the synchronous forward control of the master-slave section moving frame through the functional blocks JCDTC 62-JCDTC 66, namely in the forward process of the feeder master-slave section moving frame, when the difference value between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame is greater than or equal to 100 mm, the output end Y of the functional block JJCDTC63 in the unit is equal to the high-speed forward speed set value of the feeder moving frame, and when the difference value between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame is less than 100 mm, namely the actual position value of the feeder driven section moving frame is close to the position set value of the feeder moving frame, the output end Y of the functional block JCDTC63 in the unit is switched from the high-speed forward speed set value of the feeder moving frame to the low-speed forward speed set value of the feeder moving frame, so that the accurate positioning of the feeder driven section moving frame is facilitated; when the feeder driven section moving frame advances at a high speed or a low speed during the advance of the feeder master-slave section moving frame, and the difference between the two position values is larger than the set synchronous control allowable deviation value, the output end QU of the function block JCDTC52 in the unit will change from '1' state to '0' state, so that the output end Y of the function block jjjcdtc 66 in the unit will switch the high or low speed advance speed set value of the feeder driven section moving frame to zero, the advance speed set value output by the unit to the feeder driven section moving frame transmission device through the integrator function block JJCDTC76 will gradually decrease until the difference between the actual position values of the feeder driven section and the master section moving frame is smaller than or equal to the set synchronous control allowable deviation value, that is, the output end QU of the function block JCDTC52 changes from '0' state to '1' state, then, if the difference value between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame still exceeds the allowable positioning deviation range of the feeder moving frame, the feeder driven section moving frame will accelerate toward the feeder driven section moving frame forward speed set point output by output terminal Y of function block jcdtc63, however, in the process of advancing and accelerating the moving frame of the driven section of the feeder, if the moving frame of the driven section of the feeder advances the moving frame of the driving section and the difference between the position values of the moving frame of the driven section of the feeder and the position value of the moving frame of the driving section of the feeder is larger than the set allowable deviation value of synchronous control, the automatic linkage control unit of the moving frames of the driven section of the feeder repeats the control, so that the moving frames of the driven section of the feeder cannot exceed the moving frames of the driving section by too much before the moving frames of the driving section of the feeder in the advancing process and exceed the process allowable synchronous deviation range of the moving frames of the driving section and the driven section of the feeder; similarly, in the process of automatically backing up the moving frame of the master-slave section of the feeder, the unit realizes the automatic backing-up speed selection of the moving frame of the slave section of the feeder and the synchronous backing-up control of the moving frame of the master-slave section through the functional blocks JJCDTC 67-JJCDTC 71, namely, in the process of backing up the moving frame of the master-slave section of the feeder, when the difference between the given value of the position of the moving frame of the feeder and the actual value of the moving frame of the slave section of the feeder is less than or equal to-100 mm, the output end Y of the functional block JJCDTC68 in the unit is equal to the set value of the high-speed backing-up speed of the moving frame of the feeder, and when the difference between the given value of the position of the moving frame of the slave section of the feeder and the actual value of the position of the moving frame of the slave section of the feeder is greater than-100 mm, namely, when the actual value of the moving frame of the slave section of the feeder is close to the given value of the position of the moving frame of the feeder, the functional block JCDTC68 in the unit is switched from the set value of the high-speed backing-up speed of the moving frame of the high-speed of the moving frame of the feeder to the set value of the low-speed of the moving frame of the feeder, so as to facilitate the accurate positioning of the moving frame of the driven section of the feeder, when the moving frame of the driven section of the feeder advances the moving frame of the driving section and the difference between the two position values is smaller than the set allowable deviation value of the synchronous control during the backward movement of the moving frame of the master and slave sections of the feeder, the output QL of the functional block JCDTC53 in the unit will change from '1' state to '0' state, so that the output QL of the functional block JCDTC71 in the unit will switch the setting value of the backward speed of the high or low speed of the moving frame of the driven section of the feeder to zero, the backward speed setting value outputted by the unit to the driving frame of the driven section of the feeder through the integrator functional block JCDTC36 will gradually decrease until the difference between the actual position values of the driven section of the feeder and the moving frame of the driving section is greater than or equal to the set allowable deviation value of the synchronous control, i.e., until the output QL of the function block JCDTC53 changes from the '0' state to the '1' state, and thereafter, if the difference value between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame still exceeds the allowable positioning deviation range of the feeder moving frame, the feeder driven section moving frame will accelerate toward the feeder driven section moving frame setback speed setting output by output Y of function block jcdtc68, however, in the process of backing up and accelerating the moving frame of the driven section of the feeder, if the moving frame of the driven section of the feeder leads the moving frame of the driving section and the difference between the position values of the two is smaller than the set allowable deviation value of synchronous control, the automatic linkage control unit of the moving frame of the driven section of the feeder repeats the control, so that the moving frame of the driven section of the feeder does not exceed the moving frame of the driving section by too much before the moving frame of the driving section in the backward process of the feeder and exceed the process allowable synchronous deviation range of the moving frames of the driving section and the driving section of the feeder;

b2, for the feeder driven section moving frame manual linkage control unit, when the feeder operator sends the feeder forward or backward command, the unit's function block JJCDTC59 and JCDTC60 output end Q will both change ' 0 ' state to ' 1 ' state, therefore, the unit outputs ' feeder driven section moving frame transmission operation enable signal ', during the feeder driven section moving frame fast or slow advance, if the feeder driven section moving frame leads the driving section moving frame and the difference between the two position values is larger than or equal to the set synchronous control allowable deviation value, the unit's function block JCDTC56 output end Q will change ' 1 ' state to ' 0 ' state, thus, the unit's function block JCDTC73 output end Y will be switched to zero by the feeder driven section moving frame manual fast or slow advance speed set value, the unit will gradually decrease the forward speed set value output to the feeder driven section moving frame transmission device by the integrator function block JJCDTC76 until the difference between the actual position value of the feeder driven section and the actual position value of the driving section moving frame is less than the set allowable deviation value of synchronous control, that is, the output end QL of the function block JCDTC52 changes from '0' state to '1' state, then the feeder driven section moving frame will accelerate the manual forward speed set value of the feeder driven section moving frame input to the input end X2 of the function block JJCDTC73, but in the process of the forward acceleration of the feeder driven section moving frame, if the feeder driven section moving frame advances the driving section moving frame again and the difference between the two position values is greater than or equal to the set allowable deviation value of synchronous control, the feeder driven section moving frame manual linkage control unit will repeat the above control, thereby ensuring that the feeder driven section moving frame will not advance the driving section moving frame in the manual linkage forward process The frames are too many to exceed the allowable synchronous deviation range of the process of moving the frames of the main section and the auxiliary section of the feeder; similarly, during the process of the fast or slow backward movement of the moving frame of the driven section of the feeder, if the moving frame of the driven section of the feeder leads the moving frame of the driving section and the difference between the position values is less than or equal to the set allowable deviation value of the synchronous control, the output Q of the functional block JCDTC56 in the unit will be changed from '1' state to '0' state, so that the output Y of the functional block JJCDTC73 in the unit will be switched to zero by the manual fast or slow backward speed setting value of the moving frame of the driven section of the feeder, the backward speed setting value of the unit output to the driving device of the moving frame of the driven section of the feeder through the integrator functional block JJCDTC76 will be gradually reduced until the difference between the actual position values of the driven section of the feeder and the moving frame of the driving section is greater than the set allowable deviation value of the synchronous control, that is, the output QU of the functional block JCDTC53 is changed from '0' state to '1', and then the moving frame of the driven section of the feeder will be moved toward the input X2 of the functional block JCDTC73 The set value of the backward speed is accelerated, but in the process of the backward acceleration of the moving frame of the driven section of the feeder, if the moving frame of the driven section of the feeder leads the moving frame of the driving section and the difference between the position values of the moving frame of the driven section of the feeder and the position values of the moving frame of the driving section is smaller than or equal to the set allowable synchronous control deviation value, the manual linkage control unit of the moving frame of the driven section of the feeder repeats the control, so that the moving frame of the driven section of the feeder cannot lead the moving frame of the driving section too much to exceed the allowable synchronous deviation range of the process of the moving frame of the driving section of the feeder in the process of the backward manual linkage of the feeder;

b3, for the feeder driven section moving frame manual single-action control unit, when the feeder operator sends the feeder forward or backward command, the function block jjjjcdtc 59 and JJCDTC60 output end Q in the unit will both change from '0' state to '1' state, thus the unit outputs 'feeder driven section moving frame transmission operation enable signal', at the same time, the function block JJCDTC74 output end Y in the unit will be equal to the feeder moving frame manual forward or backward speed set value, and outputs the feeder moving frame manual forward or backward speed set value to the feeder driven section moving frame transmission through the integrator function block JJCDTC76 in the unit, to realize the feeder driven section fast or slow forward and backward operation.

Compared with the prior art, the invention has the beneficial effects that:

the synchronous translation and positioning control method for the moving frame of the feeding machine of the billet heating furnace, provided by the invention, can control the synchronous position deviation of the main moving frame and the auxiliary moving frame within a set position deviation range under the condition that the driving moving frame or the driven moving frame is not seriously clamped, and can control the maximum position deviation between the main moving frame and the auxiliary moving frame within the walking distance in the braking process of the moving frame when the driving moving frame or the driven moving frame is seriously clamped (namely the actual speed of the clamped moving frame is suddenly zero), so that the synchronous translation control with high precision, high robustness and high fault tolerance is obtained for the moving frame of the feeding machine of the heating furnace.

Drawings

FIG. 1 is a block diagram of a synchronous translation control procedure for an active segment moving frame according to the present invention;

fig. 2 is a block diagram of the synchronous translation control program of the slave segment moving frame according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In fig. 1 and 2, SUB is a subtractor; NSW is a "digital input switch" function block, and when I is '1', Y is X2, and when I is '0', Y is X1; NCM is the "numerical comparison" function block, QU is ' 1 ' when X1 > X2, ' QE is ' 1 ' when X1 ═ X2, and QL is ' 1 ' when X1 < X2; RSR is an RS trigger function block with preferential reset end R, when S is '1' and R is '0', Q is '1', QN is '0', when S is '1' and R is '1', Q is '0', QN is '1', when S is '0' and R is '0', Q and QN are kept in original states, when S is '0' and R is '0', Q is '0' and QN is '1'; RGJ is the function block of acceleration and deceleration rate control; ADD is an adder; OR is an OR gate; AND is an AND gate; NOT is a NOT gate. Szcwg is a given value of the position of a moving frame of a feeder of the heating furnace; the Sm.act is the actual position value of the movable frame of the driving section of the feeder of the heating furnace; act is the actual position value of the moving frame of the driven section of the heating furnace feeder; the delta Sgm is a deviation value between a given value of the position of the moving frame of the feeder of the heating furnace and an actual position value of the moving frame of the active section of the feeder; the delta Sgs is a deviation value between a given value of the position of the moving frame of the feeder of the heating furnace and an actual position value of the moving frame of the driven section of the feeder; delta Sms is the difference value of the actual position values of the moving frames of the driving section and the driven section of the feeder; and the delta Ssm is the difference value of the actual position values of the moving frames of the driven section and the driving section of the feeder.

The synchronous translation control program of the moving frame of the feeder of the billet heating furnace consists of two parts, namely a synchronous translation control program of a driving section moving frame and a synchronous translation control program of a driven section moving frame, the two parts of control programs use the backward terminal position value of the driving section moving frame and the driven section moving frame of the feeder of the billet heating furnace as 0mm, the position given value and the actual position value of the feeder moving frame are positive values or zero, the synchronous translation control program of the driving section moving frame of the feeder of the billet heating furnace consists of four control units, namely functional blocks JJCDTC 01-JCDTC 03 form a fault detection unit of a feeder control system; the functional blocks JJCDTC 11-JCDTC 13, JJCDTC17, JJCDTC 20-JCDTC 32, JCDTC35 and JCDTC36 form an automatic linkage control unit of the active section moving frame of the feeder; the functional blocks JJCDTC 04-JCDTC 16, JJCDTC 18-JCDTC 20, JJCDTC33, JCDTC35 and JCDTC36 form a manual linkage control unit of the moving frame of the active section of the feeder; the functional blocks JJCDTC 04-JCDTC 10, JJCDTC 18-JCDTC 20 and JJCDTC 34-JCDTC 36 form a manual single-action control unit of the moving frame of the active section of the feeder; the synchronous translation control program of the moving frame of the driven section of the billet heating furnace feeder consists of three control units, namely a function block JJCDTC 51-JJCDTC 53, JJJCDTC 57, JJJCDTC 60-JCDTC 72, JJCDTC75 and JCDTC76 form an automatic linkage control unit of the moving frame of the driven section of the feeder; the functional blocks JJCDTC 51-JCDTC 56, JJCDTC 58-JCDTC 60, JJCDTC73, JCDTC75 and JCDTC76 form a manual linkage control unit of the moving frame of the driven section of the feeder; the functional blocks JJCDTC 58-JCDTC 60 and JJCDTC 74-JCDTC 76 form a manual single-action control unit of the moving frame of the driven section of the feeder; the synchronous translation and positioning control method for the moving frame of the billet heating furnace feeder comprises the following steps: the synchronous translation control program of the driving section moving frame and the synchronous translation control program of the driven section moving frame, wherein:

a2, for a feeder active section moving frame automatic linkage control unit, when a difference value (delta Sgm) between a feeder active section moving frame position given value and a feeder active section moving frame actual position value exceeds a feeder active section moving frame allowable positioning deviation range (such as +/-5 mm) under the condition that a feeder master/slave section moving frame is in an automatic linkage mode and a feeder control system has no fault, the output ends Q of functional blocks JJJJJCDTC 32, JJCDTC17 and JJCDTC20 in the unit are all changed from '0' state to '1' state, therefore, the unit outputs 'a feeder active section moving frame transmission device operation enabling signal', so that in the automatic advancing process of the feeder master/slave section moving frame, the unit realizes the automatic advancing speed selection and master/slave section moving frame advancing synchronous control of the feeder active section moving frame through the functional blocks JCDTC 22-JCDTC 26, namely in the advancing process of the feeder master/slave section moving frame, when the difference value (delta Sgm) between the position set value of the feeder moving frame and the actual position value of the feeder active section moving frame is greater than or equal to 100 mm, the output end Y of the functional block JJCDTC23 in the unit is equal to the high-speed forward speed set value (such as 8V) of the feeder moving frame, and when the difference value (delta Sgm) between the position set value of the feeder moving frame and the actual position value of the feeder active section moving frame is less than 100 mm, namely the actual position value of the feeder active section moving frame is close to the position set value of the feeder moving frame, the output end Y of the functional block JJCDTC23 in the unit is switched from the high-speed forward speed set value of the feeder moving frame to the low-speed forward speed set value (such as 2V) of the feeder moving frame, so as to facilitate the accurate positioning of the feeder active section moving frame; when the forward speed of the main section moving frame of the feeder is high speed or low speed, when the main section moving frame of the feeder leads the moving frame of the driven section and the difference between the two position values is larger than the set allowable deviation value of synchronous control (such as 3mm), the output QU of the functional block JCDTC12 in the unit will be changed from '1' state to '0' state, so that the output Y of the functional block JJCDTC26 in the unit will be switched to zero from the high or low forward speed set value of the main section moving frame of the feeder, the forward speed set value of the unit output to the driving section moving frame transmission device of the feeder through the integrator functional block JJCDTC36 will be gradually reduced until the difference between the actual position values of the main section and the driven section moving frame of the feeder is smaller than or equal to the set allowable deviation value of synchronous control (such as 3mm), that is, the output QU of the functional block JCDTC12 is changed from '0' state to '1' state, then, if the difference (delta Sgm) between the position set value of the feeder moving frame and the actual position value of the feeder active section moving frame still exceeds the allowable positioning deviation range (such as +/-5 mm) of the feeder moving frame, the feeder active leg moving frame will accelerate toward the feeder active leg moving frame forward speed set point output by output terminal Y of function block jcdtc23, however, in the process of advancing and accelerating the moving frame of the driving section of the feeder, if the moving frame of the driving section of the feeder advances the moving frame of the driven section and the difference between the position values of the two is larger than the set allowable deviation value (such as 3mm) of synchronous control, the automatic linkage control unit of the driving section moving frame of the feeder repeats the control, so that the driving section moving frame of the feeder cannot lead the driven section moving frame to exceed the process allowable synchronous deviation range of the driving section moving frame and the driven section moving frame of the feeder in the advancing process of the feeder; similarly, in the process of automatically backing up the moving frame of the main and the auxiliary sections of the feeder, the unit realizes the automatic backing-up speed selection of the moving frame of the main and the auxiliary sections of the feeder and the synchronous backing-up control of the moving frame of the main and the auxiliary sections of the feeder through the functional blocks JJJCDTC 27-JCDTC 31, namely, in the process of backing up the moving frame of the main and the auxiliary sections of the feeder, when the difference value (delta Sgm) between the given value of the position of the moving frame of the feeder and the actual value of the moving frame of the driving section of the feeder is smaller than or equal to-100 mm, the output end Y of the functional block JJCDTC28 in the unit is equal to the set value (delta 8V) of the high-speed backing-up speed of the moving frame of the feeder, and when the difference value (delta Sgm) between the given value of the position of the moving frame of the driving section of the feeder and the actual value of the moving frame of the driving section of the feeder is greater than-100 mm, namely, the actual value of the moving frame of the driving section of the feeder is close to the given value of the position of the moving frame of the feeder, the high-speed-setting value of the feeder, the output end Y of the functional block JCDTC28 in the unit is switched to the high-speed-set value of the feeding machine The low-speed backward speed set value (such as-2V) of the moving frame is convenient for the accurate positioning of the moving frame of the active section of the feeder; when the backward moving frame of the active section of the feeder moves forward at a high speed or a low speed regardless of whether the backward moving frame of the active section of the feeder moves backward at a high speed or a low speed, the output QL of the functional block JCDTC13 in the unit changes from '1' state to '0' state when the moving frame of the active section of the feeder advances the moving frame of the driven section and the difference between the position values is smaller than a set allowable deviation value for synchronous control (e.g., -3mm), so that the output Y of the output jjjcdtc 31 in the unit switches the backward moving speed set value of the high speed or the low speed of the moving frame of the active section of the feeder to zero, the backward moving speed set value of the unit output to the driving frame transmission of the active section of the feeder through the integrator functional block JCDTC36 gradually decreases until the difference between the actual position values of the moving frame of the active section of the feeder and the driven section is greater than or equal to the set allowable deviation value for synchronous control (e.g., -3mm), that is, the output QL of the functional block JCDTC13 changes from '0' state to '1', then, if the difference (delta Sgm) between the position set value of the feeder moving frame and the actual position value of the feeder active section moving frame still exceeds the allowable positioning deviation range (such as +/-5 mm) of the feeder moving frame, the feeder active leg moving frame will accelerate toward the feeder active leg moving frame back speed set point output by output Y of function block jcdtc28, however, in the process of backing up and accelerating the moving frame of the driving section of the feeder, if the position value difference between the moving frame of the driving section of the feeder and the moving frame of the driven section of the feeder is smaller than the set allowable deviation value (such as-3 mm) of synchronous control, the automatic linkage control unit of the driving section moving frame of the feeder repeats the control, so that the driving section moving frame cannot exceed the synchronous deviation range allowed by the process of the driving section moving frame and the driven section moving frame of the feeder in the backward process of the feeder;

a3, for a feeder active section moving frame manual linkage control unit, when a feeder operator gives a feeder forward (fast or slow) or backward (fast or slow) command, the output Q of the functional block JJCDTC10 (i.e. F point in the control unit) and the output Q of the functional blocks JJCDTC19 and JCDTC20 will both be changed from ' 0 ' state to ' 1 ' state, when the feeder master and slave section moving frames are in manual linkage mode and the feeder control system is not in failure, the unit will output ' a feeder active section moving frame transmission operation enable signal ', so that, if the feeder active section moving frame advances the slave section moving frame faster or slowly and the difference between the two position values is greater than or equal to the set synchronous control allowable deviation value (e.g. 3mm), the output Q of the functional block JCDTC16 in the unit (i.e. J1 point in the control unit) will be changed from ' 1 ' 0 ' state, thus, the unit in which the output terminal Y of the function block jjjcdtc 33 is switched to zero by the feeder driving section moving frame manual fast or slow forward speed setting value, the unit outputs the forward speed setting value to the feeder driving section moving frame actuator through the integrator function block jjjcdtc 36 to be gradually lowered until the difference between the actual position values of the feeder driving section and the driven section moving frame is less than the set synchronous control allowable deviation value (e.g., 3mm), that is, the output terminal QL of the function block JCDTC12 is changed from '0' state to '1' state, after which the feeder driving section moving frame is accelerated toward the feeder driving section moving frame manual forward speed setting value output from the output terminal Y of the function block JCDTC08, but if the feeder driving section moving frame advances ahead of the driven section moving frame again and the difference between the two position values is greater than or equal to the set synchronous control allowable deviation value (e.g., 3mm) during the forward acceleration of the feeder driving section moving frame, the manual linkage control unit of the driving section moving frame of the feeder repeats the control, so that the driving section moving frame of the feeder cannot exceed the process allowable synchronous deviation range of the driving section moving frame and the driven section moving frame of the feeder in the manual linkage advancing process; similarly, during the fast or slow backward movement of the moving frame of the driving section of the feeder, if the moving frame of the driving section of the feeder leads the moving frame of the driven section and the difference between the position values is less than or equal to the set allowable deviation value (e.g., -3mm) of the synchronous control, the output terminal Q of the function block JCDTC16 in the unit will be changed from '1' state to '0' state, so that the output terminal Y of the function block jjjcdtc 33 in the unit will be switched from the set value of the fast or slow backward speed of the moving frame of the driving section of the feeder to zero, the backward speed set value of the transmission device of the driving section of the feeder outputted through the integrator function block JCDTC36 will be gradually decreased until the difference between the actual position values of the moving frame of the driving section of the feeder and the driven section is greater than the set allowable deviation value (e.g., -3mm) of the synchronous control, that is, that the output terminal QU of the function block JCDTC13 is changed from '0' state to '1', then, the feeder driving section moving frame accelerates the manual backward speed set value of the feeder driving section moving frame output by the output end Y of the functional block JJCDTC08, but in the process of backward acceleration of the feeder driving section moving frame, if the difference between the position values of the feeder driving section moving frame and the feeder driving section moving frame advancing the driven section moving frame is smaller than or equal to the set synchronous control allowable deviation value (such as-3 mm), the feeder driving section moving frame manual linkage control unit will repeat the above control, thereby ensuring that the driving section moving frame does not advance the driven section moving frame too much and exceed the process allowable synchronous deviation range of the feeder driving section moving frame in the process of manual linkage backward movement of the feeder;

a4, for a feeder active section moving frame manual single-action control unit, when a feeder operator sends a feeder forward (fast or slow) or backward (fast or slow) command under the condition that the feeder active section moving frame is in a manual single-action mode and a feeder control system has no fault, the output end Q of a functional block JJCDTC10 (namely the F point in the control unit) and the output ends Q of functional blocks JJCDTC19 and JCDTC20 in the unit are changed from '0' state to '1' state; thus, the unit outputs 'a feeder active section moving frame driving device operation enabling signal', and at the same time, the output end Y of the function block jjjcdtc 34 in the unit will be equal to the feeder moving frame manual advance (fast or slow) or retreat (fast or slow) speed set value, and the feeder moving frame manual advance (fast or slow) or retreat (fast or slow) speed set value is output to the feeder active section moving frame driving device through the integrator function block jcdtc36 in the unit, so as to realize the feeder active section fast or slow advance and retreat operation;

b1, for the automatic linkage control unit of the feeder driven section moving frame, when the difference value (Δ Sgs) between the given value of the feeder moving frame position and the actual value of the feeder driven section moving frame position exceeds the allowable positioning deviation range (such as + -5 mm) of the feeder moving frame under the condition that the feeder master-slave section moving frame is in the automatic linkage mode and the feeder control system has no fault, the output ends Q of the functional blocks JJJJCDTC 72, JJCDTC57 and JJCDTC60 in the unit are all changed from '0' state to '1' state, therefore, the unit outputs 'the operation enabling signal of the feeder driven section moving frame transmission device', thus, in the automatic advance process of the feeder master-slave section moving frame, the unit realizes the automatic advance speed selection and the synchronous advance control of the feeder driven section moving frame through the functional blocks JCDTC 62-JCDTC 66, namely in the advance process of the feeder master-slave section moving frame, when the difference value (DeltaSgs) between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame is greater than or equal to 100 mm, the output end Y of the functional block JJCDTC63 in the unit is equal to the high-speed forward speed set value (such as 8V) of the feeder moving frame, and when the difference value (DeltaSgs) between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame is less than 100 mm, namely the actual position value of the feeder driven section moving frame is close to the position set value of the feeder moving frame, the output end Y of the functional block JJCDTC63 in the unit is switched from the high-speed forward speed set value of the feeder moving frame to the low-speed forward speed set value (such as 2V) of the feeder moving frame, so as to facilitate the accurate positioning of the feeder driven section moving frame; when the feeder driven section moving frame advances at a high speed or a low speed during the advancement of the feeder master/slave section moving frame, and the difference between the position values of the feeder driven section moving frame and the master section moving frame is greater than a set allowable deviation value for synchronous control (e.g., 3mm), the output QU of the functional block JCDTC52 in the unit is changed from '1' state to '0' state, so that the output Y of the functional block JJCDTC66 in the unit is switched to zero from the set value for the high or low speed advancement of the feeder driven section moving frame, and the unit is gradually lowered from the set value for the advancement of the feeder driven section moving frame transmission through the integrator functional block JCDTC76 until the difference between the actual position values of the feeder driven section and the master section moving frame is less than or equal to the set allowable deviation value for synchronous control (e.g., 3mm), that is, the output QU of the functional block JCDTC52 is changed from '0' state to '1' state, then, if the difference value (Delta Sgs) between the position set value of the feeder moving frame and the actual position value of the feeder driven section moving frame still exceeds the allowable positioning deviation range (such as +/-5 mm) of the feeder moving frame, the feeder driven section moving frame will accelerate toward the feeder driven section moving frame forward speed set point output by output terminal Y of function block jcdtc63, however, in the process of advancing and accelerating the moving frame of the driven section of the feeder, if the moving frame of the driven section of the feeder advances the moving frame of the driving section and the difference between the position values of the moving frame of the driven section of the feeder and the moving frame of the driving section is larger than the set allowable deviation value (such as 3mm) of synchronous control, the automatic linkage control unit of the moving frames of the driven section of the feeder repeats the control, so that the moving frames of the driven section of the feeder cannot exceed the moving frames of the driving section by too much before the moving frames of the driving section of the feeder in the advancing process and exceed the process allowable synchronous deviation range of the moving frames of the driving section and the driven section of the feeder; similarly, in the process of automatically backing up the moving frame of the main-driven section of the feeder, the unit realizes the automatic backing-up speed selection of the moving frame of the driven section of the feeder and the synchronous backing-up control of the moving frame of the main-driven section through the functional blocks JJCDTC 67-JCDTC 71, namely in the process of backing up the moving frame of the main-driven section of the feeder, when the difference value (delta Sgs) between the given value of the position of the moving frame of the feeder and the actual value of the moving frame of the driven section of the feeder is smaller than or equal to-100 mm, the output end Y of the functional block JJCDTC68 in the unit is equal to the set value (such as-8V) of the high-speed backing-up speed of the moving frame of the feeder, and when the difference value (delta Sgs) between the given value of the position of the moving frame of the driven section of the feeder and the actual value of the position of the moving frame of the driven section of the feeder is greater than-100 mm, namely, the actual value of the moving frame of the driven section of the feeder is close to the given value of the position of the moving frame of the feeder, the output end Y of the functional block JCDTC68 in the high-speed backing-up switching from the moving frame of the feeder to the set value of the high-speed backing-up speed of the feeder When the moving frame of the driven section of the feeder advances the moving frame of the driving section and the difference between the position values is smaller than a set allowable deviation value for synchronous control (e.g., -3mm) during the backward movement of the moving frame of the driven section of the feeder, the output QL of the function block JCDTC53 in the unit will be changed from '1' state to '0' state, so that the output qy of the function block JJCDTC71 in the unit will be switched from the high or low speed setting value for the backward movement of the moving frame of the driven section of the feeder to zero, and the backward speed setting value outputted from the unit to the driving frame transmission of the driven section of the feeder through the integrator function block JJCDTC36 will be gradually decreased until the difference between the actual position values of the driven section of the feeder and the moving frame of the driving section is greater than or equal to the set allowable deviation value for synchronous control (e.g., -2V) -3mm), that is, until the output QL of the functional block JCDTC53 changes from '0' state to '1' state, after which, if the difference (Δ Sgs) between the given value of the position of the feeder moving frame and the actual value of the position of the feeder driven-section moving frame still exceeds the range of the allowable positioning deviation (e.g., ± 5mm) of the feeder moving frame, the feeder driven-section moving frame accelerates toward the set value of the retreating speed of the feeder driven-section moving frame output from the output Y of the functional block JCDTC68, but during the retreating acceleration of the feeder driven-section moving frame, if the difference between the two values of the position of the feeder driven-section moving frame advancing the driving-section moving frame is smaller than the allowable deviation (e.g., -3mm) of the synchronous control, the feeder driven-section moving-frame automatic-linkage control unit repeats the above control, thereby ensuring that the driven-section moving frame does not advance too much during the retreating of the feeder to exceed the main-section moving frame of the feeder Segment moving frame process tolerance synchronization deviation range;

b2, for the feeder driven section moving frame manual linkage control unit, when the feeder operator sends the feeder forward (fast or slow) or backward (fast or slow) command, the functional block jjjcdtc 59 and the output Q of JJCDTC60 in the unit will both change from '0' state to '1' state, thus the unit outputs 'the feeder driven section moving frame transmission operation enable signal', so that, if the feeder driven section moving frame advances the driving section moving frame and the difference between the two position values is greater than or equal to the set synchronous control allowable deviation value (such as 3mm) during the fast or slow advance of the feeder driven section moving frame, the output Q of the functional block JCDTC56 in the unit (i.e. the point J2 in the control unit) will change from '1' state to '0' state, thus, the unit in which the output terminal Y of the function block jjjcdtc 73 is to be switched to zero by the feeder driven section moving frame manual fast or slow forward speed setting value, the unit will gradually decrease the forward speed setting value outputted to the feeder driven section moving frame transmission device through the integrator function block JJCDTC76 until the difference between the actual position values of the feeder driven section and the driving section moving frame is less than the set synchronous control allowable deviation value (e.g. 3mm), that is, the output terminal QL of the function block JCDTC52 changes from '0' state to '1' state, after which the feeder driven section moving frame will be accelerated toward the feeder driven section moving frame manual forward speed setting value inputted from the input terminal X2 of the function block JCDTC73, but if the feeder driven section moving frame advances the driving section moving frame again and the difference between the two position values is greater than or equal to the set synchronous control allowable deviation value (e.g. 3mm), the manual linkage control unit of the moving frame of the driven section of the feeder repeats the control, so that the moving frame of the driven section of the feeder does not exceed the moving frame of the driving section by too much and exceed the process allowable synchronous deviation range of the moving frames of the driving section and the driven section of the feeder in the manual linkage advancing process; similarly, if the position value of the slave moving frame of the feeder is less than or equal to the set allowable deviation value of synchronous control (e.g., -3mm) during the fast or slow backward movement of the slave moving frame of the feeder, the output Q of the function block JCDTC56 in the unit will be changed from '1' state to '0' state, so that the output Y of the function block JJCDTC73 in the unit will be switched to zero by the manual fast or slow backward speed setting value of the slave moving frame of the feeder, the backward speed setting value of the unit output to the transmission of the slave moving frame of the feeder through the integrator function block JCDTC76 will be gradually decreased until the difference between the actual position values of the slave moving frame of the feeder and the master moving frame is greater than the set allowable deviation value of synchronous control (e.g., -3mm), that is, the output QU of the function block JCDTC53 is changed from '0' state to '1', then, the feeder driven section moving frame accelerates towards the manual backward speed set value of the feeder driven section moving frame input by an input end X2 of a functional block JJCDTC73, but in the process of backward acceleration of the feeder driven section moving frame, if the feeder driven section moving frame leads the driving section moving frame again and the difference between the position values of the two is smaller than or equal to the set synchronous control allowable deviation value (such as-3 mm), the feeder driven section moving frame manual linkage control unit repeats the control, thereby ensuring that the feeder driven section moving frame does not lead the driving section moving frame too much to exceed the process allowable synchronous deviation range of the feeder driving section moving frame in the process of manual linkage backward movement;

b3, for the feeder driven section moving frame manual single-action control unit, when the feeder operator gives the feeder forward (fast or slow) or backward (fast or slow) command, the functional block jjjcdtc 59 and the output Q of JJCDTC60 in the unit will both change from '0' state to '1' state, whereby the unit outputs the 'feeder driven section moving frame transmission operation enable signal', and at the same time, the output Y of the functional block jcdtc74 in the unit will be equal to the feeder moving frame manual forward (fast or slow) or backward (fast or slow) speed set value, and the feeder moving frame manual forward (fast or slow) or backward (fast or slow) speed set value is output to the feeder driven section moving frame transmission through the integrator functional block jcdtc76 in the unit, so as to realize the fast or slow forward and backward operation of the driven section of the feeder.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A synchronous translation and positioning control method for a moving frame of a billet heating furnace feeder is characterized by comprising the following steps: the synchronous translation control program of the moving frame of the feeder of the billet heating furnace consists of two parts, namely a synchronous translation control program of the moving frame of the driving section and a synchronous translation control program of the moving frame of the driven section, and the synchronous translation control program of the moving frame of the driving section of the feeder of the billet heating furnace consists of four control units, namely functional blocks JJCDTC 01-JCDTC 03 form a fault detection unit of a feeder control system; the functional blocks JJCDTC 11-JCDTC 13, JJCDTC17, JJCDTC 20-JCDTC 32, JCDTC35 and JCDTC36 form an automatic linkage control unit of the active section moving frame of the feeder; the functional blocks JJCDTC 04-JCDTC 16, JJCDTC 18-JCDTC 20, JJCDTC33, JCDTC35 and JCDTC36 form a manual linkage control unit of the moving frame of the active section of the feeder; the functional blocks JJCDTC 04-JCDTC 10, JJCDTC 18-JCDTC 20 and JJCDTC 34-JCDTC 36 form a manual single-action control unit of the moving frame of the active section of the feeder; the synchronous translation control program of the moving frame of the driven section of the billet heating furnace feeder consists of three control units, namely a function block JJCDTC 51-JJCDTC 53, JJJCDTC 57, JJJCDTC 60-JCDTC 72, JJCDTC75 and JCDTC76 form an automatic linkage control unit of the moving frame of the driven section of the feeder; the functional blocks JJCDTC 51-JCDTC 56, JJCDTC 58-JCDTC 60, JJCDTC73, JCDTC75 and JCDTC76 form a manual linkage control unit of the moving frame of the driven section of the feeder; the functional blocks JJCDTC 58-JCDTC 60 and JJCDTC 74-JCDTC 76 form a manual single-action control unit of the moving frame of the driven section of the feeder; the synchronous translation and positioning control method for the moving frame of the billet heating furnace feeder comprises the following steps: the synchronous translation control program of the driving section moving frame and the synchronous translation control program of the driven section moving frame, wherein: