CN102990148B - Forced shearing method of flying shear - Google Patents
Forced shearing method of flying shear Download PDFInfo
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- CN102990148B CN102990148B CN201210509478.8A CN201210509478A CN102990148B CN 102990148 B CN102990148 B CN 102990148B CN 201210509478 A CN201210509478 A CN 201210509478A CN 102990148 B CN102990148 B CN 102990148B
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- flying shear
- shear
- rolled piece
- become
- shearing
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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 flying shears of forcing, also relate to it and force cutting method.
Background technology
Flying shear is one of visual plant in excellent wire steel rolling system, reinforcing bar enters after finished product machine, need be successively hot shears after cutting front heat inspection and cutting, when cutting front heat inspection and cutting after heat inspection all reinforcing bar signal can be detected time, flying shear time delay was sheared after the certain hour time, and direct current generator of the every action of flying shear drives reduction box rotation.In flying shear shear history, break down (for example have reinforcing bar signal or never reinforcing bar signal) if cut after heat inspection, flying shear cannot automatic shearing, causes the overflow always of finished product machine cold bed below always, 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 existing for above-mentioned prior art, a kind of pressure flying shears simple in structure, easy to operate is proposed, provide it simultaneously and force cutting method.
In order to reach above object, a technical scheme of the present invention provides 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 being positioned on 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 technique scheme, the cutting edge of described flying shear body is provided with 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 technique scheme, wherein said direct current generator is connected with arrangements for speed regulation and encoder.
In order to reach above object, technical scheme of the present invention also provides the pressure cutting method of flying shear, the device of the method comprises T400 board, 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 sends to T400 board for heat inspection signal, and accepts the command information of T400 board; Flying shear is for carrying out the instruction of T400 board; The method comprises the steps:
One, the hot checking device of scan-type is cut 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 1, T400 board is according to 1) formula signal condition that rolled piece is cut to after heat inspection judges,
Y=1 1）
If Y=1, enters step 2, if Y=0, T400 board sends time delay and shears the controlled end of instruction to 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, according to 2) formula judge flying shear whether need to rolled piece force shear,
T>L
doubly/ V
become2)
Wherein L
doublyfor multiple length preseting length, V
becomefor finished frame linear velocity, if T>L
doubly/ V
become, enter step 3, if T≤L
doubly/ V
become, T400 board sends shears the controlled end of instruction to flying shear, and flying shear is sheared rolled piece, and EO enters next circulation;
Three, T400 board sends and forces to shear the controlled end of instruction to flying shear, and flying shear forces to shear the certain length L of rolled piece
by force, shut-down operation, enters next circulation.
In technique scheme, in wherein said step 3, L
by force=L
doubly+ L
attached, wherein L
attachedfor forcing to shear added value, can on machine plate, manually set.
In technique scheme, in wherein said step 2, break down if cut after heat inspection signal in first section of rolled piece, establishing the time of heat inspection signal in malfunction is T
4, according to 3) formula judge flying shear whether need to rolled piece force shear,
T
4>L
first/ V
become3)
Wherein, L
firstheaded by section multiple length preseting length, if T
4>L
first/ V
become, enter step 4, if T
4≤ L
first/ V
become, T400 board sends shears the controlled end of instruction to flying shear, and flying shear is sheared rolled piece, and EO enters next circulation.
In technique scheme, in wherein said step 1, T
1=(L
doubly-L
45)/V
become, wherein L
45for the distance that the hot checking device of scan-type and flying shear are shown in, setting value is 45 meters.
In technique scheme, in 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, wherein L
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 ensure that flying shear normally works, in the time that breaking down, signal can also force flying shear shear reinforcement, avoid occurring the phenomenon of cold bed overflow, reduced staff's labour intensity, improved operating efficiency; The present invention gives a kind of entire flow of flying shear pressure shearing Long-distance Control, realized by Computerized intelligent, by T400 board control operation equipment, reduced unnecessary artificial work, reduce fault rate, ensured the security of operating process and the reliability of operating result.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further illustrated.
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.
Detailed description of the invention
With reference to the accompanying drawings and in conjunction with the embodiments the present invention is the most further described in detail.But the present invention is not limited only to given example.
The inventive system comprises T400 board, 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 sends to T400 board for heat inspection signal, and accepts the command information of T400 board; Flying shear is 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 after heat inspection to rolled piece and obtained signal Y, if the normal condition of signal Y is 0, malfunction is 1, T400 board is according to 1) formula signal condition that rolled piece is cut to after heat inspection judges, if Y=1, enters step 2, if Y=0, T400 board sends time delay and shears the controlled end of instruction to flying shear, flying shear time delay certain time interval T
1afterwards rolled piece is sheared, EO, enters step 1 and starts next circulation; The time of two, establishing between twice shear action of flying shear is T, i.e. last shearing to shear the time between starting next time, according to 2) formula judges whether flying shear needs rolled piece to force shearing, if T>L
doubly/ V
become, enter step 3, if T≤L
doubly/ V
become, T400 board sends shears the controlled end of instruction to flying shear, and flying shear is sheared rolled piece, and EO enters step 1, starts next circulation; Three, T400 board sends and forces to shear the controlled end of instruction to 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, rolled piece, establishing the time of heat inspection signal in malfunction is T
4, according to 3) formula judge flying shear whether need to rolled piece force shear, if T
4>L
first/ V
become, enter step 4, if T
4≤ L
first/ V
become, T400 board sends shears the controlled end of instruction to flying shear, and flying shear is sheared rolled piece, and EO enters next circulation.Wherein, L
doublyfor multiple length preseting length, L
firstheaded by section multiple length preseting length, L
attachedfor forcing to shear added value.
Embodiment mono-
The pressure flying shears of the 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 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 location approach switch from the place of cutting, so that 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 the 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 and cuts after heat and examine and transmit signals to T400 board 1 it, the hot checking device 3 of scan-type is cut after heat inspection to rolled piece 6 and is obtained signal Y, and signal Y is sent to T400 board 1, T400 board 1 judges " Y=1 ", now show and have reinforcing bar signal always or never have reinforcing bar signal, enter next step, T400 board 1 judges time T, as " T>L
doubly/ V
become" time, flying shear will be at the upper time delay certain hour afterwards of once shearing, and this time exceedes the also not action of time flying shear of setting, and T400 board 1 sends forces to shear the controlled end of instruction to flying shear, and flying shear is forced the certain length L of shear reinforcement rolled piece after receiving instruction
by force, after shearing, signal recovers normal, forces to shear and cancels, and 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, wherein L
attachedfor forcing to shear added value, be made as 6.00 meters, L
doublybe 107.30 meters, V
becomebe 6 meter per seconds.
Embodiment bis-
The difference of the present embodiment and embodiment mono-is, T400 board judges time T, as " T≤L
doubly/ V
become", T400 board sends shears the controlled end of instruction to flying shear, controls flying shear rolled piece is normally sheared, and EO, returns to normal shearing condition, enters step 1, starts next circulation.Wherein L
doublybe made as 96.30 meters, V
becomebe 7 meter per seconds.
Embodiment tri-
The difference of the present embodiment and embodiment mono-is, the hot checking device of scan-type is cut after heat inspection to rolled piece and is obtained signal Y, and signal Y is sent to T400 board, T400 board judgement " Y=0 ", T400 board sends time delay and shears the controlled end of instruction to flying shear, flying shear time delay certain time interval T
1afterwards rolled piece is normally sheared, EO, enters next circulation.Wherein T
1=(L
doubly-L
45)/V
become, L
doublybe 95.20 meters, L
45be 45 meters, V
becomebe 6 meter per seconds.
Embodiment tetra-
The difference of the present embodiment and embodiment mono-is, cuts after heat inspection and breaks down at the first segment signal of rolled piece reinforcing bar, and the time of heat inspection signal in malfunction is T
4, as " T
4>L
first/ V
become" wherein, L
firstheaded by section multiple length preseting length, as " T
4>L
first/ V
become", T400 board sends forces to shear the controlled end of instruction to flying shear, and flying shear is forced the certain length L of shear reinforcement rolled piece after receiving instruction
by force, after shearing, signal recovers normal, forces to shear and cancels, and returns to normal shearing condition.Wherein L
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 (5)
1. a pressure cutting method for flying shear, is characterized in that the device of the method comprises T400 board, 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 sends to T400 board for heat inspection signal, and accepts the command information of T400 board; Flying shear is for carrying out the instruction of T400 board; The method comprises the steps:
One, the hot checking device of scan-type is cut 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 1, T400 board is according to 1) formula signal condition that rolled piece is cut to after heat inspection judges,
Y=1 1）
If Y=1, enters step 2, if Y=0, T400 board sends time delay and shears the controlled end of instruction to 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
2, according to 2) formula judge flying shear whether need to rolled piece force shear,
T
2>L
doubly/ V
become2)
Wherein L
doublyfor multiple length preseting length, V
becomefor finished frame linear velocity, if T
2>L
doubly/ V
become, enter step 3, if T
2≤ L
doubly/ V
become, T400 board sends shears the controlled end of instruction to flying shear, and flying shear is sheared rolled piece, and EO enters next circulation;
Three, T400 board sends and forces to shear the controlled end of instruction to flying shear, and flying shear forces to shear the certain length L of rolled piece
by force, shut-down operation, enters next circulation.
2. the pressure cutting method of flying shear according to claim 1, is characterized in that: in described step 3, and L
by force=L
doubly+ L
attached, wherein L
attachedfor forcing to shear added value, can on machine plate, manually set.
3. the pressure cutting method of flying shear according to claim 1, 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 of heat inspection signal in malfunction is T
4, according to 3) formula judge flying shear whether need to rolled piece force shear,
T
4>L
first/ V
become3)
Wherein, L
firstheaded by section multiple length preseting length, if T
4>L
first/ V
become, enter step 4, if T
4≤ L
first/ V
become, T400 board sends shears the controlled end of instruction to flying shear, and flying shear is sheared rolled piece, and EO enters next circulation.
4. the pressure cutting method of flying shear according to claim 1, is characterized in that: in described step 1, and T
1=(L
doubly-L
45)/V
become, wherein L
45for the distance that the hot checking device of scan-type and flying shear are shown in, setting value is 45 meters.
5. the pressure cutting method of flying shear according to claim 1, 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, wherein L
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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210509478.8A CN102990148B (en) | 2012-12-04 | 2012-12-04 | Forced shearing method of flying shear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990148A CN102990148A (en) | 2013-03-27 |
| CN102990148B true CN102990148B (en) | 2014-10-29 |
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ID=47919554
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210509478.8A Active CN102990148B (en) | 2012-12-04 | 2012-12-04 | Forced shearing method of flying shear |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706642B (en) * | 2013-12-30 | 2016-01-20 | 陕西钢铁集团有限公司 | Control system and the method for on-line tuning is produced based on the full multiple length of Direct Rolling bar |
| 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 |
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 |
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| CN102990148A (en) | 2013-03-27 |
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