CN102990148A - Forced shearing flying shear and forced shearing method thereof - Google Patents
Forced shearing flying shear and forced shearing method thereof Download PDFInfo
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- CN102990148A CN102990148A CN2012105094788A CN201210509478A CN102990148A CN 102990148 A CN102990148 A CN 102990148A CN 2012105094788 A CN2012105094788 A CN 2012105094788A CN 201210509478 A CN201210509478 A CN 201210509478A CN 102990148 A CN102990148 A CN 102990148A
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- shear
- flying shear
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Abstract
The invention relates to a forced shearing method of a forced shearing flying shear. The method comprises the following steps of conducting hot detection on a rolled piece by using a scanning type hot detection device after shearing to obtain a signal Y, setting the normal state of the signal Y to be 0 and the fault state to be 1, judging the state of the signal obtained through hot detecting the rolled piece after shearing by using a process plate T400 according to a formula (1), if Y=1, implanting the second step, and if Y=0, sending a delayed shearing instruction to a controlled end of the flying shear by the process plate T400, shearing the rolled piece by using the flying shear after the flying shear is delayed for a certain time T1, and ending the operation; setting the time difference between two shearing actions of the flying shear to be T2, judging whether the flying shear needs to forcedly shear the rolled piece according to a formula (2), if T2 is more than L (double-ruler set length)/V (finished product rack linear velocity), implementing the third step, if T2 is smaller than or equal to L (double-ruler set length)/V (finished product rack linear velocity), sending a shearing instruction to the controlled end of the flying shear by using the process plate T400, shearing the rolled piece by using the flying shear, and ending the operation; and sending a forced shearing instruction to the controlled end of the flying shear by the process plate T400, forcedly shearing the rolled piece for a certain length L (forced shearing length) by using the flying shear, stopping the operation and implementing the next circulation.
Description
Technical field
The present invention relates to a kind of pressure flying shears, also relate to it and force cutting method.
Background technology
Flying shear is one of visual plant in the excellent wire steel rolling system, after reinforcing bar enters finished product machine, need successively through cutting front heat inspection and cut after hot shears, when cutting front heat inspection and cutting the after heat inspection all can detect the reinforcing bar signal time, flying shear time-delay certain hour was sheared after the time, and direct current generator of the every action of flying shear drives the reduction box rotation.In the flying shear shear history, detect existing fault (for example always have reinforcing bar signal or never reinforcing bar signal) if cut after heat, flying shear can't automatic shearing, causes the always overflow of cold bed of finished product machine back, have a strong impact on the production of reinforcing bar, caused larger economic loss.
Summary of the invention
The object of the invention is to: the problem for above-mentioned prior art exists, pressure flying shears a kind of simple in structure, easy to operate is proposed, provide simultaneously it and force cutting method.
In order to reach above purpose, a technical scheme of the present invention provides the pressure flying shears, this flying shear comprises direct current generator, reduction box and flying shear body, also comprise the hot checking device of scan-type, the hot checking device of described scan-type is aimed at the workpiece front end that is positioned on the finished frame, the signal output part of the hot checking device of described scan-type is connected with the signal input part of T400 board, and the output of described T400 board is connected with the controlled end of flying shear body.
In the technique scheme, the cutting edge of described flying shear body is provided with the location approach switch from the place of cutting therein, and the signal output part of described location approach switch is connected with the signal input part of T400 board.
In the technique scheme, wherein said direct current generator is connected with arrangements for speed regulation and encoder.
In order to reach above purpose, technical scheme of the present invention also provides the pressure cutting method of flying shear, the device of the method comprises the T400 board, is used for accepting the heat inspection signal message of flying shear status information and the hot checking device of scan-type, and issues instructions to the controlled end of flying shear; The hot checking device of scan-type is used for heat inspection signal and sends to the T400 board, and accepts the command information of T400 board; Flying shear is used for carrying out the instruction of T400 board; The method comprises the steps:
One, the hot checking device of scan-type is cut the after heat inspection to rolled piece and is obtained signal Y, and the normal condition of establishing signal Y is 0, and malfunction is that the signal condition that 1, T400 board is cut the after heat inspection according to (1) formula to rolled piece is judged,
Y=1 （1）
If Y=1 enters step 2, if Y=0, the T400 board sends time-delay and shears instruction to the controlled end of flying shear, flying shear time-delay certain time interval T
1Afterwards rolled piece is sheared, EO enters next circulation;
The time of two, establishing between twice shear action of flying shear is T, judges according to (2) formula whether flying shear needs rolled piece is forced to shear,
T〉L
Doubly/ V
Become(2)
L wherein
DoublyBe multiple length preseting length, V
BecomeBe the finished frame linear velocity, if T〉L
Doubly/ V
Become, enter step 3, if T≤L
Doubly/ V
Become, the T400 board sends shears instruction to the controlled end of flying shear, and flying shear is sheared rolled piece, and EO enters next circulation;
Three, the T400 board sends and forces to shear instruction to the controlled end of flying shear, and flying shear forces to shear the certain length L of rolled piece
By force, shut-down operation enters next circulation.
In the technique scheme, in the wherein said step 3, L
By force=L
Doubly+ L
Attached, L wherein
AttachedFor forcing to shear added value, can on the machine plate, manually set.
In the technique scheme, in the wherein said step 2, break down if cut after heat inspection signal in first section of rolled piece, establishing the time that heat inspection signal is in malfunction is T
4, judge according to (3) formula whether flying shear needs rolled piece is forced to shear,
T
4L
First/ V
Become(3)
Wherein, L
FirstHeaded by section multiple length preseting length, if T
4L
First/ V
Become, enter step 4, if T
4≤ L
First/ V
Become, the T400 board sends shears instruction to the controlled end of flying shear, and flying shear is sheared rolled piece, and EO enters next circulation.
In the technique scheme, in the wherein said step 1, T
1=(L
Doubly-L
45)/V
Become, L wherein
45Be the distance that the hot checking device of scan-type and flying shear are seen, setting value is 45 meters.
In the technique scheme, in the wherein said step 3, establishing startup pressure shear time is T
By force, T
By force=T
2+ T
3, and T
2=L
Doubly/ V
Become, T
3=L
Attached/ V
Become, L wherein
AttachedFor forcing to shear added value.
The invention has the advantages that: pressure flying shears of the present invention is simple in structure, easy to operate, adopt T400 board automation control, not only can guarantee the flying shear normal operation, when breaking down, signal can also force the flying shear shear reinforcement, avoid occurring the phenomenon of cold bed overflow, reduced staff's labour intensity, improved operating efficiency; The present invention gives the entire flow that a kind of flying shear forces to shear Long-distance Control, realized by Computerized intelligent, by T400 board control operation equipment, reduced unnecessary artificial work, reduce fault rate, guaranteed the security of operating process and the reliability of operating result.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the flow chart that flying shear of the present invention is forced cutting method.
The specific embodiment
With reference to the accompanying drawings and in conjunction with the embodiments to the most further detailed description of the present invention.But the present invention is not limited only to given example.
The inventive system comprises the T400 board, be used for accepting the heat inspection signal message of flying shear status information and the hot checking device of scan-type, and issue instructions to the controlled end of flying shear; The hot checking device of scan-type is used for heat inspection signal and sends to the T400 board, and accepts the command information of T400 board; Flying shear is used for carrying out the instruction of T400 board.
Method of the present invention comprises the steps: one, the hot checking device of scan-type is cut the after heat inspection to rolled piece and obtained signal Y, if the normal condition of signal Y is 0, malfunction is 1, the signal condition that the T400 board is cut the after heat inspection according to (1) formula to rolled piece is judged, if Y=1 enters step 2, if Y=0, the T400 board sends time-delay and shears instruction to the controlled end of flying shear, flying shear time-delay certain time interval T
1Afterwards rolled piece is sheared, EO enters step 1 and begins next circulation; The time of two, establishing between twice shear action of flying shear is T, and namely last the shearing time of finishing to shear between the beginning next time judges according to (2) formula whether flying shear needs rolled piece is forced to shear, if T〉L
Doubly/ V
Become, enter step 3, if T≤L
Doubly/ V
Become, the T400 board sends shears instruction to the controlled end of flying shear, and flying shear is sheared rolled piece, and EO enters step 1, begins next circulation; Three, the T400 board sends and forces to shear instruction to the controlled end of flying shear, and flying shear forces to shear the certain length L of rolled piece
By force, shut-down operation enters next circulation.When cutting in addition after heat inspection signal and breaking down, if its first section in rolled piece, establishing the time that heat inspection signal is in malfunction is T
4, judge according to (3) formula whether flying shear needs rolled piece is forced to shear, if T
4L
First/ V
Become, enter step 4, if T
4≤ L
First/ V
Become, the T400 board sends shears instruction to the controlled end of flying shear, and flying shear is sheared rolled piece, and EO enters next circulation.Wherein, L
DoublyBe multiple length preseting length, L
FirstHeaded by section multiple length preseting length, L
AttachedFor forcing to shear added value.
Embodiment one
The pressure flying shears of present embodiment, its structure as shown in Figure 1, comprise direct current generator 5, reduction box, the hot checking device 3 of flying shear body 4 and scan-type, the hot checking device 3 of scan-type is aimed at rolled piece 6 heads that are positioned on the finished frame 2, the signal output part of the hot checking device 3 of scan-type is connected with the signal input part of T400 board 1, the output of T400 board 1 is connected with the controlled end of flying shear body 4, cutting edge at flying shear body 4 is provided with the location approach switch from the place of cutting, so that the flying shear body is accurately located, the signal output part of location approach switch is connected with the signal input part of T400 board 1, direct current generator 5 is connected with arrangements for speed regulation and encoder, arrangements for speed regulation can be controlled the speed of direct current generator 5, and encoder can accurately detect the rotating speed of direct current generator 5.
As shown in Figure 2, the flying shear of present embodiment forces cutting method to comprise the steps: that rolled piece reinforcing bar 6 enters finished frame 2, the hot checking device 3 of scan-type is cut front heat inspection to it and is cut the after heat inspection and transmit signals to T400 board 1,3 pairs of rolled pieces 6 of the hot checking device of scan-type are cut the after heat inspection and are obtained signal Y, and signal Y is sent to T400 board 1, T400 board 1 is judged " Y=1 ", showing this moment has the reinforcing bar signal always or never has the reinforcing bar signal, enter next step, 1 pair of time T of T400 board judges, when " T〉L
Doubly/ V
Become" time, namely flying shear will be at the upper certain hour of delaying time after once shearing, and this time surpasses the also action of time flying shear of setting, and T400 board 1 sends forces to shear instruction to the controlled end of flying shear, and flying shear is received the certain length L of pressure shear reinforcement rolled piece after the instruction
By force, signal recovers normal after shearing, and forces to shear cancellation, returns to normal shearing condition.Wherein establishing startup pressure shear time is T
By force, T
By force=T
2+ T
3, and T
2=L
Doubly/ V
Become, T
3=L
Attached/ V
Become, L wherein
AttachedFor forcing to shear added value, be made as 6.00 meters, L
DoublyBe 107.30 meters, V
BecomeBe 6 meter per seconds.
Embodiment two
The difference of present embodiment and embodiment one is that the T400 board is judged time T, as " T≤L
Doubly/ V
Become", the T400 board sends shears instruction to the controlled end of flying shear, and the control flying shear is normally sheared rolled piece, and EO returns to normal shearing condition, enters step 1, begins next circulation.L wherein
DoublyBe made as 96.30 meters, V
BecomeBe 7 meter per seconds.
Embodiment three
The difference of present embodiment and embodiment one is, the hot checking device of scan-type is cut the after heat inspection to rolled piece and is obtained signal Y, and signal Y is sent to the T400 board, the T400 board is judged " Y=0 ", the T400 board sends time-delay and shears instruction to the controlled end of flying shear, flying shear time-delay certain time interval T
1Afterwards rolled piece is normally sheared, EO enters next circulation.T wherein
1=(L
Doubly-L
45)/V
Become, L
DoublyBe 95.20 meters, L
45Be 45 meters, V
BecomeBe 6 meter per seconds.
Embodiment four
The difference of present embodiment and embodiment one is, cuts the after heat inspection and breaks down at the first segment signal of rolled piece reinforcing bar, and the time that heat inspection signal is in malfunction is T
4, as " T
4L
First/ V
Become" wherein, L
FirstHeaded by section multiple length preseting length, as " T
4L
First/ V
Become", the T400 board sends forces to shear instruction to the controlled end of flying shear, and flying shear is forced the certain length L of shear reinforcement rolled piece after receiving instruction
By force, signal recovers normal after shearing, and forces to shear cancellation, returns to normal shearing condition.L wherein
FirstHeaded by section multiple length preseting length, be made as 98.70 meters, V
BecomeBe 10 meter per seconds.
In addition to the implementation, the present invention also can have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, drop on the protection domain of requirement of the present invention.
Claims (8)
1. force flying shears for one kind, comprise direct current generator, reduction box and flying shear body, it is characterized in that: also comprise the hot checking device of scan-type, the hot checking device of described scan-type is aimed at the workpiece front end that is positioned on the finished frame, the signal output part of the hot checking device of described scan-type is connected with the signal input part of T400 board, and the output of described T400 board is connected with the controlled end of flying shear body.
2. pressure flying shears device according to claim 1, it is characterized in that: the cutting edge at described flying shear body is provided with the location approach switch from the place of cutting, and the signal output part of described location approach switch is connected with the signal input part of T400 board.
3. pressure flying shears device according to claim 1, it is characterized in that: described direct current generator is connected with arrangements for speed regulation and encoder.
4. the pressure cutting method of a flying shear is characterized in that the device of the method comprises the T400 board, is used for accepting the heat inspection signal message of flying shear status information and the hot checking device of scan-type, and issues instructions to the controlled end of flying shear; The hot checking device of scan-type is used for heat inspection signal and sends to the T400 board, and accepts the command information of T400 board; Flying shear is used for carrying out the instruction of T400 board; The method comprises the steps:
One, the hot checking device of scan-type is cut the after heat inspection to rolled piece and is obtained signal Y, and the normal condition of establishing signal Y is 0, and malfunction is that the signal condition that 1, T400 board is cut the after heat inspection according to (1) formula to rolled piece is judged,
Y=1 （1）
If Y=1 enters step 2, if Y=0, the T400 board sends time-delay and shears instruction to the controlled end of flying shear, flying shear time-delay certain time interval T
1Afterwards rolled piece is sheared, EO enters next circulation;
The time of two, establishing between twice shear action of flying shear is T, judges according to (2) formula whether flying shear needs rolled piece is forced to shear,
T〉L
Doubly/ V
Become(2)
L wherein
DoublyBe multiple length preseting length, V
BecomeBe the finished frame linear velocity, if T〉L
Doubly/ V
Become, enter step 3, if T≤L
Doubly/ V
Become, the T400 board sends shears instruction to the controlled end of flying shear, and flying shear is sheared rolled piece, and EO enters next circulation;
Three, the T400 board sends and forces to shear instruction to the controlled end of flying shear, and flying shear forces to shear the certain length L of rolled piece
By force, shut-down operation enters next circulation.
5. the control method of pressure flying shears according to claim 4 is characterized in that: in described step 3, and L
By force=L
Doubly+ L
Attached, L wherein
AttachedFor forcing to shear added value, can on the machine plate, manually set.
6. the control method of pressure flying shears according to claim 4 is characterized in that: in described step 2, break down if cut after heat inspection signal in first section of rolled piece, establishing the time that heat inspection signal is in malfunction is T
4, judge according to (3) formula whether flying shear needs rolled piece is forced to shear,
T
4L
First/ V
Become(3)
Wherein, L
FirstHeaded by section multiple length preseting length, if T
4L
First/ V
Become, enter step 4, if T
4≤ L
First/ V
Become, the T400 board sends shears instruction to the controlled end of flying shear, and flying shear is sheared rolled piece, and EO enters next circulation.
7. the control method of pressure flying shears according to claim 4 is characterized in that: in described step 1, and T
1=(L
Doubly-L
45)/V
Become, L wherein
45Be the distance that the hot checking device of scan-type and flying shear are seen, setting value is 45 meters.
8. the control method of pressure flying shears according to claim 4 is characterized in that: in described step 3, establish and start that to force shear time be T
By force, T
By force=T
2+ T
3, and T
2=L
Doubly/ V
Become, T
3=L
Attached/ V
Become, L wherein
AttachedFor forcing to shear added value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509478.8A CN102990148B (en) | 2012-12-04 | 2012-12-04 | Forced shearing method of flying shear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509478.8A CN102990148B (en) | 2012-12-04 | 2012-12-04 | Forced shearing method of flying shear |
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| Publication Number | Publication Date |
|---|---|
| CN102990148A true CN102990148A (en) | 2013-03-27 |
| CN102990148B CN102990148B (en) | 2014-10-29 |
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|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706642A (en) * | 2013-12-30 | 2014-04-09 | 陕西钢铁集团有限公司 | Control system and method based on bar direct rolling full multiple length production online adjustment |
| CN111421179A (en) * | 2020-03-30 | 2020-07-17 | 马鞍山钢铁股份有限公司 | Rod cold shearing fixed-length shearing control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1462200B1 (en) * | 2003-03-27 | 2006-11-22 | Oto Mills S.p.A. | A machine for continuous-cycle shearing of moving welded tubes |
| CN201143572Y (en) * | 2008-01-18 | 2008-11-05 | 天津市博控机电科技有限公司 | Multiple lengths flying shear |
| CN102441569A (en) * | 2011-12-09 | 2012-05-09 | 中冶南方（武汉）自动化有限公司 | New method for controlling flying shears for bars and wires based on T400 |
-
2012
- 2012-12-04 CN CN201210509478.8A patent/CN102990148B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1462200B1 (en) * | 2003-03-27 | 2006-11-22 | Oto Mills S.p.A. | A machine for continuous-cycle shearing of moving welded tubes |
| CN201143572Y (en) * | 2008-01-18 | 2008-11-05 | 天津市博控机电科技有限公司 | Multiple lengths flying shear |
| CN102441569A (en) * | 2011-12-09 | 2012-05-09 | 中冶南方（武汉）自动化有限公司 | New method for controlling flying shears for bars and wires based on T400 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706642A (en) * | 2013-12-30 | 2014-04-09 | 陕西钢铁集团有限公司 | Control system and method based on bar direct rolling full multiple length production online adjustment |
| CN111421179A (en) * | 2020-03-30 | 2020-07-17 | 马鞍山钢铁股份有限公司 | Rod cold shearing fixed-length shearing control system |
| CN111421179B (en) * | 2020-03-30 | 2021-04-09 | 马鞍山钢铁股份有限公司 | Rod cold shearing fixed-length shearing control system |
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|---|---|
| CN102990148B (en) | 2014-10-29 |
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