CN217647602U - Flexible heavy waste gantry shearing machine with dynamically changed lifting cutter height - Google Patents
Flexible heavy waste gantry shearing machine with dynamically changed lifting cutter height Download PDFInfo
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Abstract
The utility model relates to a metal waste cutter technical field, concretely relates to flexible heavy useless longmen cutter of high dynamic change of new line, including setting up on the host computer frame of heavy useless longmen cutter and being located being used for of the stub bar top position of heavy useless longmen cutter and measuring press the first photoelectric distance measuring sensor of stub bar height position, set up and be located being used for of the overhead position of scissors of heavy useless longmen cutter on heavy useless longmen cutter host computer frame and measure the second photoelectric distance measuring sensor of overhead position of scissors, the control system of heavy useless longmen cutter is connected respectively to first photoelectric distance measuring sensor, second photoelectric distance measuring sensor. The utility model discloses it has improved scrap steel material shearing efficiency to show under the prerequisite of guaranteeing to cut safety.
Description
Technical Field
The utility model relates to a metal waste cutter technical field, concretely relates to lift heavy useless longmen cutter of flexibility of high dynamic change of sword.
Background
The heavy waste gantry shearing machine is a large waste steel processing device, can shear various waste steel sections, steel billets, steel pipes, steel structural parts, scrapped automobiles and the like, can provide high-quality furnace burden for the metallurgical industry, and is important processing equipment for the metallurgical industry and the large metal recovery industry.
The typical heavy waste gantry shearing machine comprises a heavy waste gantry shearing machine host, a feeding hopper, a bin and the like, wherein the feeding hopper, the bin and the like are connected with the heavy waste gantry shearing machine host. The heavy waste gantry shearing machine host comprises a host frame, and a material pressing mechanism and a shearing mechanism which are respectively arranged on the host frame. The material box connected with the main frame is provided with a material pushing mechanism for pushing the waste steel material in the material box to a lower cutter seat of the shearing mechanism, the material pressing mechanism is responsible for pressing and fixing the waste steel material on the lower cutter seat, and after material pressing, the shear head above the lower cutter seat moves downwards to cut off the waste steel material. And when the steel scrap is cut once, the shear head is lifted upwards, the pressing mechanism is loosened, then the steel scrap is pushed forwards for a certain distance by the pushing mechanism, the pressing mechanism is pressed again, and the shear head is moved downwards to cut again, so that the continuous cutting of the steel scrap is formed.
In the whole shearing action process, the shearing head of the heavy waste gantry shearing machine has the longest action time.
The heavy waste gantry shearing machine has the following problems in use: the stroke of the shear head on the heavy waste gantry shearing machine is controlled by a stroke switch, and the cutter lifting height of the shear head is a constant value after the stroke switch is set. However, in the heavy waste gantry shearing machine, the heights of the waste steel materials pushed to the lower tool apron each time are changed frequently due to the fact that the specifications and types of the sheared waste steel materials are more and the waste steel materials fed into the material box each time are uneven. For example, the height variation range of the waste steel materials pushed to the lower tool apron by the heavy waste gantry shearing machine with the maximum shearing height of 1000mm exceeds 300mm. Therefore, if the height of the scissor head for lifting the scissor is set too low, the safety problem of the scissor collision during pushing materials can be caused, and the height of the scissor head for lifting the scissor head is usually required to be set to be higher, but the safety problem is solved, but the defect that the idle stroke action time of the scissor head is too long, so that the shearing efficiency is reduced is also caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a lift heavy useless longmen cutter of flexibility of sword high dynamic change aims at improving steel scrap shearing efficiency under the safe prerequisite of guaranteeing to cut. The specific technical scheme is as follows:
the flexible heavy waste gantry shearing machine with the dynamically changed lifting height comprises a first photoelectric distance measuring sensor, a second photoelectric distance measuring sensor and a control system, wherein the first photoelectric distance measuring sensor is arranged on a main frame of the heavy waste gantry shearing machine and positioned above a material pressing head of the heavy waste gantry shearing machine and used for measuring the height position of the material pressing head, the second photoelectric distance measuring sensor is arranged on the main frame of the heavy waste gantry shearing machine and positioned above a shear head of the heavy waste gantry shearing machine and used for measuring the height position of the shear head, and the first photoelectric distance measuring sensor and the second photoelectric distance measuring sensor are respectively connected with the control system of the heavy waste gantry shearing machine.
Preferably, the main frame of the heavy waste gantry shearing machine comprises a left wall plate, a right wall plate, a lower tool apron connected to the lower part between the left wall plate and the right wall plate, and an upper beam connected to the upper part between the left wall plate and the right wall plate; the first photoelectric distance measuring sensor and the second photoelectric distance measuring sensor are respectively arranged on the upper beam.
The heavy waste gantry shearing machine further comprises a material box connected with the host framework, a material pushing oil cylinder arranged on the material box, a material pressing oil cylinder and a servo shearing oil cylinder which are respectively arranged on an upper beam at the top of the host framework, and side pushing oil cylinders which are respectively arranged on a left wall plate and a right wall plate at two sides of the host framework; the front end of the material pushing oil cylinder is provided with a material pushing head, and the front end of the material pressing oil cylinder is provided with a material pressing head; a shear head is arranged at the front end of the servo shearing oil cylinder, and a side pushing head is arranged at the front end of the side pushing oil cylinder; the material pushing oil cylinder, the material pressing oil cylinder, the servo shearing oil cylinder and the side pushing oil cylinder are respectively connected with a control system.
Preferably, the control system is a PLC control system.
A flexible shearing method of a flexible heavy waste gantry shearing machine with dynamically changed lifting knife height comprises the following steps:
(1) The photoelectric distance measuring sensor is arranged: a first photoelectric distance measuring sensor is arranged on a main frame of the heavy waste gantry shearing machine and above a material pressing head of the heavy waste gantry shearing machine, a second photoelectric distance measuring sensor is arranged on the main frame of the heavy waste gantry shearing machine and above a shearing head of the heavy waste gantry shearing machine, and the first photoelectric distance measuring sensor and the second photoelectric distance measuring sensor are respectively connected with a control system of the heavy waste gantry shearing machine;
(2) Monitoring the shearing process: in the shearing process, the control system dynamically monitors the height position of the pressure stub bar through a first photoelectric distance measuring sensor and the height position of the shear head through a second photoelectric distance measuring sensor;
(3) Setting the shearing flow and the cutter lifting height: the shearing process of the heavy waste gantry shearing machine comprises a feeding action of pushing the waste steel to be sheared to a lower tool apron of the heavy waste gantry shearing machine, a pressing action of compressing and fixing the waste steel to be sheared pushed to the lower tool apron through a pressing head, a shearing action of cutting off the waste steel to be sheared after pressing through the shear head, and a cutter lifting action of returning the shear head after shearing, wherein the feeding action, the pressing action, the shearing action and the cutter lifting action are sequentially and circularly performed, and the continuous shearing of the heavy waste gantry shearing machine is realized through the action circulation of the feeding action, the pressing action, the shearing action and the cutter lifting action; and the cutter lifting height set by the cutter lifting action in each action cycle is determined by the material pressing height after the material pressing action in the action cycle is completed, and the formula is as follows: the cutter lifting height H2= the material pressing height H1+ the safety margin value delta.
Wherein the safety margin value delta = 80-120 mm.
The material pressing height H1 is calculated according to the following formula: h1= L-a-D1; wherein, L is the distance between the lower end surface of the upper beam of the main frame of the heavy-waste gantry shearing machine and the upper end surface of the lower tool apron, A is the thickness of the material pressing head, and D1 is the distance between the lower end surface of the upper beam and the upper end surface of the material pressing head when the material pressing action is completed, which is measured by the first photoelectric distance measuring sensor.
The cutter lifting height H2 is controlled according to the following method: monitoring the distance D2 from the lower end face of the upper beam to the upper end face of the scissor head through a second photoelectric distance measuring sensor, so that the distance D2= L-B- (L-A-D1 + delta) = A + D1-B-delta from the lower end face of the upper beam to the upper end face of the scissor head after the scissor head lifting action is completed; wherein B is the maximum thickness of the scissor head in the vertical direction.
Preferably, the shearing action flow of the heavy waste gantry shearing machine is as follows:
s1, feeding: adding the scattered scrap steel to be sheared into a material box of the heavy scrap gantry shearing machine through a steel grabbing machine or an electromagnetic chuck;
s2, pushing materials: under the control of a control system of the heavy waste gantry shearing machine, a material pushing oil cylinder of the heavy waste gantry shearing machine acts, so that a material pushing head at the front end of the material pushing oil cylinder is pushed forwards according to the cutting length of the scrap steel set by a program, and the scrap steel is sent to a lower tool apron table surface in a main machine frame of the heavy waste gantry shearing machine;
s3, gathering materials: the side-push oil cylinders on two sides of the main frame of the heavy waste gantry shearing machine act to enable the side-push head at the front end of the side-push oil cylinder to move forward, the waste steel scattered on the table surface of the lower tool rest is folded and combined to the middle position, and the side-push oil cylinder returns to reset after the side-push oil cylinder is positioned;
s4, material pressing action: a pressing oil cylinder on a main frame of the heavy waste gantry shearing machine acts to enable a pressing head at the front end of the pressing oil cylinder to move downwards and press the folded and combined scrap steel on the table surface of the lower tool apron;
s5, material shearing: a servo shearing oil cylinder on a main frame of the heavy waste gantry shearing machine acts to enable a shearing head at the front end of the servo shearing oil cylinder to move downwards to shear the waste steel;
s6, lifting the cutter: a servo shearing oil cylinder on a main frame of the heavy waste gantry shearing machine acts to lift a shear head at the front end of the servo shearing oil cylinder upwards, and the cutter lifting height H2= the material pressing height H1+ the safety margin value delta;
s7, return stroke action of the material pressing head: a pressing oil cylinder on a main frame of the heavy waste gantry shearing machine acts to enable a pressing head at the front end of the pressing oil cylinder to retreat upwards, so that the pressing head and the waste steel on the table surface of the lower tool rest are completely loosened;
s8, pushing materials: the pushing oil cylinder of the heavy waste gantry shearing machine acts to enable a pushing head at the front end of the pushing oil cylinder to be pushed forwards according to the waste steel cutting length set by a program;
s9, judging: the control system judges whether the material pushing head is pushed to the limit position or not by controlling a travel switch of the position of the material pushing head, and if the material pushing head is not pushed to the limit position, the control system repeats the shearing actions from the step S3 to the step S8; if the pushing head is pushed to the limit position, the waste steel in the material box is used up, then the pushing oil cylinder is retracted and reset, and then the shearing actions from the step S1 to the step S8 are repeated.
As a further improvement of the utility model, the shearing action flow of the heavy useless longmen cutter still includes step S5A, the pressure head of setting between step S5 to S6 and slightly loosens the action: the material pressing oil cylinder on the main frame of the heavy waste gantry shearing machine is decompressed, so that a material pressing head at the lower end of the material pressing oil cylinder performs slight backspacing, and the material pressing head slightly loosens the waste steel on the lower tool rest table surface.
The utility model has the advantages that:
through set up first photoelectric ranging sensor and second photoelectric ranging sensor on the host computer frame of heavy useless longmen cutter, can realize that the scissors head is lifted the dynamic setting that the sword height changed according to pressing the material altitude variation to can reduce the idle stroke time of scissors head by a wide margin, and then great range has improved steel scrap shearing efficiency.
Drawings
FIG. 1 is a schematic diagram of the flexible shearing flow of the flexible heavy waste gantry shearing machine with dynamically changed lifting knife height of the utility model;
FIG. 2 is a schematic structural diagram of a main machine part of the flexible heavy waste gantry shearing machine;
FIG. 3 is a rear view of FIG. 2;
fig. 4 is a schematic diagram of the calculation of the cutter lifting height in combination with fig. 2 and 3.
In the figure: 1. the device comprises a main frame, 2, a material pressing head, 3, a first photoelectric distance measuring sensor, 4, a shear head, 5, a second photoelectric distance measuring sensor, 6, a left wall plate, 7, a right wall plate, 8, a lower tool rest, 9, an upper beam, 10, a side pushing oil cylinder, 11, a material pressing oil cylinder, 12 and a servo shearing oil cylinder.
In the figure: h1 is the material pressing height, H2 is the cutter lifting height, delta is a safety margin value, L is the distance between the lower end face of the upper beam of the host frame of the heavy waste gantry shearing machine and the upper end face of the lower cutter holder, A is the thickness of the material pressing head, D1 is the distance between the lower end face of the upper beam and the upper end face of the material pressing head when the material pressing action is completed, which is measured by a first photoelectric distance measuring sensor, D2 is the distance between the lower end face of the upper beam and the upper end face of the scissor head, which is measured by a second photoelectric distance measuring sensor, and B is the maximum thickness of the scissor head in the vertical direction.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
fig. 1 to 4 show that the utility model discloses an embodiment of the heavy useless longmen cutter of flexibility of the high dynamic change of new line sword, including setting up on the host computer frame 1 of heavy useless longmen cutter and being located being used for of the material pressing head 2 top position of heavy useless longmen cutter and measuring press the first photoelectric distance measuring sensor 3 of 2 high positions of material pressing head, set up on heavy useless longmen cutter host computer frame 1 and be located being used for of the scissors head 4 top position of heavy useless longmen cutter and measure the second photoelectric distance measuring sensor 5 of scissors head 4 high position, first photoelectric distance measuring sensor 3, second photoelectric distance measuring sensor 5 connect the control system of heavy useless longmen cutter respectively.
Preferably, the main frame 1 of the heavy waste gantry shearing machine comprises a left wall plate 6, a right wall plate 7, a lower tool rest 8 connected between the left wall plate 6 and the right wall plate 7 at the lower position, and an upper beam 9 connected between the left wall plate 6 and the right wall plate 7 at the upper position; the first photoelectric distance measuring sensor 3 and the second photoelectric distance measuring sensor 5 are respectively arranged on the upper beam 9.
In this embodiment, the heavy waste gantry shearing machine further includes a bin (not shown in the figure) connected to the mainframe frame 1, a material pushing cylinder arranged on the bin, a material pressing cylinder 11 and a servo shearing cylinder 12 respectively arranged on an upper beam 9 at the top of the mainframe frame 1, and side pushing cylinders 10 respectively arranged on the left wall plate 6 and the right wall plate 7 at both sides of the mainframe frame 1; the front end of the material pushing oil cylinder is provided with a material pushing head, and the front end of the material pressing oil cylinder 11 is provided with a material pressing head 2; a shear head 4 is arranged at the front end of the servo shearing oil cylinder 12, and a side pushing head is arranged at the front end of the side pushing oil cylinder 10; the material pushing oil cylinder, the material pressing oil cylinder 11, the servo shearing oil cylinder 12 and the side pushing oil cylinder 10 are respectively connected with a control system.
Preferably, the control system is a PLC control system.
Example 2:
fig. 1 to 4 show an embodiment of a flexible shearing method of a flexible heavy waste gantry shearing machine with dynamically changed lifting blade height, which includes the following steps:
(1) Setting of the photoelectric distance measuring sensor: a first photoelectric distance measuring sensor 3 is arranged on a main frame 1 of the heavy waste gantry shearing machine and above a material pressing head 2 of the heavy waste gantry shearing machine, a second photoelectric distance measuring sensor 5 is arranged on the main frame 1 of the heavy waste gantry shearing machine and above a shear head 4 of the heavy waste gantry shearing machine, and the first photoelectric distance measuring sensor 3 and the second photoelectric distance measuring sensor 4 are respectively connected with a control system of the heavy waste gantry shearing machine;
(2) Monitoring the shearing process: in the shearing process, the control system dynamically monitors the height position of the pressure stub bar 2 through the first photoelectric distance measuring sensor 3 and dynamically monitors the height position of the shear head 4 through the second photoelectric distance measuring sensor 5;
(3) Setting the shearing flow and the cutter lifting height: the shearing process of the heavy waste gantry shearing machine comprises a feeding action of pushing the waste steel to be sheared to a lower tool apron 8 of the heavy waste gantry shearing machine, a pressing action of compressing and fixing the waste steel to be sheared pushed to the lower tool apron 8 through a pressing head 2, a shearing action of cutting off the waste steel to be sheared after being pressed through a shear head 4, and a cutter lifting action of retreating the shear head 4 after shearing, wherein the feeding action, the pressing action, the shearing action and the cutter lifting action are sequentially and circularly performed, and the continuous shearing of the heavy waste gantry shearing machine is realized through the action circulation of the feeding action, the pressing action, the shearing action and the cutter lifting action; and the cutter lifting height set by the cutter lifting action in each action cycle is determined by the material pressing height after the material pressing action in the action cycle is completed, and the formula is as follows: the cutter lifting height H2= the material pressing height H1+ the safety margin value delta.
Wherein the safety margin value delta = 80-120 mm.
Wherein the material pressing height H1 is calculated according to the following formula: h1= L-a-D1; wherein, L is the distance between the lower end face of an upper beam 9 of a main frame 1 of the heavy waste gantry shearing machine and the upper end face of a lower tool rest 8, A is the thickness of a material pressing head 2, and D1 is the distance between the lower end face of the upper beam 9 and the upper end face of the material pressing head 2 when the material pressing action is completed, which is measured by a first photoelectric distance measuring sensor 3.
The cutter lifting height H2 is controlled according to the following method: monitoring the distance D2 between the lower end face of the upper beam 9 and the upper end face of the scissor head 4 through the second photoelectric distance measuring sensor 5, so that the distance D2= L-B- (L-A-D1 + delta) = A + D1-B-delta between the lower end face of the upper beam 9 and the upper end face of the scissor head 4 after the scissor head raising action is completed; where B is the maximum thickness of scissor head 4 in the vertical direction.
Preferably, the shearing action flow of the heavy waste gantry shearing machine is as follows:
s1, feeding: adding the scattered scrap steel to be sheared into a material box of the heavy scrap gantry shearing machine through a steel grabbing machine or an electromagnetic chuck;
s2, pushing materials: under the control of a control system of the heavy waste gantry shearing machine, a material pushing oil cylinder of the heavy waste gantry shearing machine acts to enable a material pushing head at the front end of the material pushing oil cylinder to be pushed forwards according to the waste steel cutting length set by a program, and the waste steel is sent to the table top of a lower tool apron 8 in a main machine frame 1 of the heavy waste gantry shearing machine;
s3, gathering materials: the side push oil cylinders 10 on two sides of the main frame 1 of the heavy waste gantry shearing machine act to enable the side push heads at the front ends of the side push oil cylinders 10 to move forward, the scattered waste steel on the table surface of the lower tool apron 8 is folded and combined to the middle position, and the side push oil cylinders are retracted and reset after the side push oil cylinders reach the middle position;
s4, material pressing action: a pressing oil cylinder 11 on a main frame 1 of the heavy waste gantry shearing machine acts to enable a pressing head 2 at the front end of the pressing oil cylinder 11 to move downwards and press the folded and combined waste steel on the table surface of a lower tool apron 8;
s5, material shearing: a servo shearing oil cylinder 12 on a main frame 1 of the heavy waste gantry shearing machine acts to enable a shearing head at the front end of the servo shearing oil cylinder 12 to move downwards to shear the waste steel;
s6, lifting the cutter: a servo shearing oil cylinder 12 on a main machine frame 1 of the heavy waste gantry shearing machine acts to lift a shear head 4 at the front end of the servo shearing oil cylinder 12 upwards, and the cutter lifting height H2 of the shear head 4 is = the material pressing height H1+ a safety margin value delta;
s7, return stroke action of the material pressing head: a pressing oil cylinder 11 on a main frame 1 of the heavy waste gantry shearing machine acts to enable a pressing head 2 at the front end of the pressing oil cylinder 11 to retreat upwards, so that the pressing head 2 and the waste steel on the table surface of a lower tool apron 8 are completely loosened;
s8, pushing materials: the pushing oil cylinder of the heavy waste gantry shearing machine acts to enable a pushing head at the front end of the pushing oil cylinder to be pushed forwards according to the waste steel cutting length set by a program;
s9, judging: the control system judges whether the material pushing head is pushed to the limit position or not by controlling a travel switch of the position of the material pushing head, and if the material pushing head is not pushed to the limit position, the control system repeats the shearing actions from the step S3 to the step S8; if the pushing head is pushed to the limit position, the steel scraps in the material box are used up, then the pushing oil cylinder retracts and resets, and then the shearing actions from the step S1 to the step S8 are repeated.
As a further improvement of this embodiment, the shearing action flow of the heavy waste gantry shearing machine further includes step S5A, a micro-loosening action of the material pressing head 2, which is set between steps S5 to S6: the material pressing oil cylinder 11 on the main frame 1 of the heavy waste gantry shearing machine is decompressed, so that the material pressing head 2 at the lower end of the material pressing oil cylinder 11 slightly backs, and the waste steel on the table surface of the lower tool apron 8 is slightly loosened by the material pressing head 2.
Example 3:
a conventional heavy waste gantry shearing machine with the maximum shearing height of 1000mm is adopted to shear a batch of scattered waste steel materials, and the batch of waste steel materials are rigid materials without height change during compaction. Because the sheared steel scraps are more in specification and variety and the steel scraps added into the material box at every time are uneven, the height of the steel scraps pushed to the lower tool apron at every time is changed, in the steel scraps, the feeding height when 50% of the steel scraps are fed to the lower tool apron is about 100mm, the feeding height when 25% of the steel scraps are fed to the lower tool apron is about 200mm, and the feeding height when 25% of the steel scraps are fed to the lower tool apron is about 400 mm. The safety cutter raising height of the scissor head is set to a fixed value of 500mm.
Example 4:
a flexible heavy waste gantry shearing machine with the maximum shearing height of 1000mm is adopted to shear a batch of scattered waste steel materials, and the batch of waste steel materials are all rigid materials without height change during compaction. Because the sheared steel scraps are more in specification and variety and the steel scraps added into the material box at every time are uneven, the height of the steel scraps pushed to the lower tool apron at every time is changed, in the steel scraps, the feeding height when 50% of the steel scraps are fed to the lower tool apron is about 100mm, the feeding height when 25% of the steel scraps are fed to the lower tool apron is about 200mm, and the feeding height when 25% of the steel scraps are fed to the lower tool apron is about 400 mm. Then the height of the scissor head to lift is dynamically set in the shearing process: setting a safety cutter lifting height H2= a material pressing height H1+ a safety margin value delta of a scissor head, wherein the safety margin value delta =100mm;
because the scrap steel is rigid material without height change during compaction, the pressing height H1 is equal to the feeding height. The cutter lifting height at different feeding heights is as follows:
the cutter lifting height is 200mm when the feeding height is about 100mm; the cutter lifting height is 300mm when the feeding height is about 200mm; the cutter lifting height is 500mm when the feeding height is about 400 mm.
According to the proportion of the waste steel materials with different feeding heights, the average cutter lifting height for shearing the batch of the waste steel materials with different impurities is calculated according to the weight as follows:
(200mm×50％+300mm×25％+500mm×25％)/(50％+25％+25％)＝100+75+125＝300mm。
example 5:
comparing the example 3 with the example 4, the average height (300 mm) of the lifting knife when the flexible heavy waste gantry shearing machine is adopted is 60% of the height (500 mm) of the lifting knife of the conventional heavy waste gantry shearing machine, namely the height of the lifting knife can be reduced by 40%.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The flexible heavy waste gantry shearing machine with the dynamic cutter lifting height change is characterized by comprising a first photoelectric distance measuring sensor, a second photoelectric distance measuring sensor and a control system, wherein the first photoelectric distance measuring sensor is arranged on a host frame of the heavy waste gantry shearing machine and is positioned above a material pressing head of the heavy waste gantry shearing machine and used for measuring the height position of the material pressing head, the second photoelectric distance measuring sensor is arranged on the host frame of the heavy waste gantry shearing machine and is positioned above a shear head of the heavy waste gantry shearing machine and used for measuring the height position of the shear head, and the first photoelectric distance measuring sensor and the second photoelectric distance measuring sensor are respectively connected with the control system of the heavy waste gantry shearing machine.
2. The flexible heavy waste gantry shear with dynamically changed lifting height of claim 1, wherein the host frame of the heavy waste gantry shear comprises a left wall plate, a right wall plate, a lower tool apron connected at a lower position between the left wall plate and the right wall plate, and an upper beam connected at an upper position between the left wall plate and the right wall plate; the first photoelectric distance measuring sensor and the second photoelectric distance measuring sensor are respectively arranged on the upper beam.
3. The flexible heavy waste gantry shearing machine with the dynamically changed lifting knife height according to claim 2, further comprising a material box connected with the main frame, a material pushing oil cylinder arranged on the material box, a material pressing oil cylinder and a servo shearing oil cylinder which are respectively arranged on an upper beam at the top of the main frame, and side pushing oil cylinders respectively arranged on a left wall plate and a right wall plate at two sides of the main frame; the front end of the material pushing oil cylinder is provided with a material pushing head, and the front end of the material pressing oil cylinder is provided with a material pressing head; a shear head is arranged at the front end of the servo shearing oil cylinder, and a side pushing head is arranged at the front end of the side pushing oil cylinder; the material pushing oil cylinder, the material pressing oil cylinder, the servo shearing oil cylinder and the side pushing oil cylinder are respectively connected with a control system.
4. The flexible heavy waste gantry shear with dynamically changing lifting blade height of claim 3, wherein the control system is a PLC control system.
5. The flexible heavy waste gantry shearing machine with the dynamically changed lifting knife height according to claim 1, wherein the lifting knife height H2= the material pressing height H1+ the safety margin value delta of the heavy waste gantry shearing machine in the shearing process.
6. The flexible heavy waste gantry shearing machine with the dynamically changed lifting knife height as claimed in claim 5, wherein the height change range of the waste steel materials pushed to the lower knife holder during the operation of the heavy waste gantry shearing machine exceeds 300mm, and the safety margin value Δ = 80-120 mm.
7. The flexible heavy waste gantry shear with dynamically changing lifting knife height of claim 5, wherein the material pressing height H1= L-A-D1; wherein, L is the distance between the lower end surface of the upper beam of the main frame of the heavy-waste gantry shearing machine and the upper end surface of the lower tool apron, A is the thickness of the material pressing head, and D1 is the distance between the lower end surface of the upper beam and the upper end surface of the material pressing head when the material pressing action is completed, which is measured by the first photoelectric distance measuring sensor.
8. The flexible heavy waste gantry shearing machine with the dynamically changed lifting knife height according to claim 7, wherein after the shearing head lifting knife action of the heavy waste gantry shearing machine is completed, the distance D2= A + D1-B-delta between the lower end face of the upper beam and the upper end face of the shearing head; wherein, B is the maximum thickness of the scissor head in the vertical direction.
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| CN202220842426.1U CN217647602U (en) | 2022-04-13 | 2022-04-13 | Flexible heavy waste gantry shearing machine with dynamically changed lifting cutter height |
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| CN202220842426.1U CN217647602U (en) | 2022-04-13 | 2022-04-13 | Flexible heavy waste gantry shearing machine with dynamically changed lifting cutter height |
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