CN116618591B - Demolding control method for non-demolding aluminum ingot of casting machine - Google Patents
Demolding control method for non-demolding aluminum ingot of casting machine Download PDFInfo
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- CN116618591B CN116618591B CN202310719765.XA CN202310719765A CN116618591B CN 116618591 B CN116618591 B CN 116618591B CN 202310719765 A CN202310719765 A CN 202310719765A CN 116618591 B CN116618591 B CN 116618591B
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 169
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 169
- 238000005266 casting Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 9
- 238000011897 real-time detection Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims abstract description 3
- 238000009749 continuous casting Methods 0.000 claims description 37
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 229910000838 Al alloy Inorganic materials 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000004411 aluminium Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
- B22D29/06—Strippers actuated by fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention provides a demoulding control method of an aluminum ingot which is not demoulded by a casting machine, which comprises the following steps: s1, presetting the actual width of a die asAnd the actual distance from the probe of the range finder to the plane of the frame of the die at the position of the measuring datum point isThe method comprises the steps of carrying out a first treatment on the surface of the S2, detecting the traveling speed v of the aluminum ingot mould in real time through a speed sensor; real-time detection of measured distance from probe to aluminum ingot mold at reference point position by distance meterThe method comprises the steps of carrying out a first treatment on the surface of the S3, whenEqual toWhen the distance meter starts to measure the measured distance in real time, the time is startedEnding the timing when the change occurs, and obtaining time t; s4, the controller receives the walking speed v and the time t, and then calculates=Width at time=v×t; by comparison ofAndjudging whether an aluminum ingot which is not demoulded exists in the die or not; s5, if the aluminum ingot is judged to be present, the secondary stripping device is started to carry out stripping operation, so that the aluminum ingot in the die is stripped from the notch on the front face of the die.
Description
Technical Field
The invention relates to the field of demolding of aluminum ingots of casting machines, in particular to a demolding control method of an un-demolded aluminum ingot of a casting machine.
Background
In the aluminum alloy smelting industry, aluminum alloy solution smelted in a smelting furnace is cast into aluminum alloy ingots through a continuous casting machine, and when demoulding, the aluminum ingots are knocked out from a die to an aluminum ingot conveying line through an automatic knocking hammer device arranged in front of the continuous casting machine, and conveyed to a robot stacking position to be automatically stacked, packaged and put in storage.
However, in the actual production process, the existing automatic knocking hammer device occasionally causes that individual aluminum ingots cannot be separated from the die smoothly, the aluminum ingots which are not demoulded possibly fall down along the continuous casting machine to the bottom of the continuous casting machine, the continuous casting machine is easy to be blocked at the bottom of the continuous casting machine, the continuous casting machine cannot normally operate, even the continuous casting machine is pulled out, and in the ingot casting state of the continuous casting machine, a large amount of high-temperature aluminum alloy liquid flows to the continuous casting machine, the continuous casting machine is suddenly blocked and cannot normally operate, so that a large amount of high-temperature aluminum liquid flows to the outside of the continuous casting machine, a certain potential safety hazard exists, and other equipment is easy to damage; if the demolding-free aluminum ingot does not fall off from the bottom of the continuous casting machine, the aluminum ingot returns to the position of the distributor ingot after the continuous casting machine, repeated casting is caused, and because the aluminum ingot exists in the mold, the repeated casting of the new aluminum alloy liquid can cause a large amount of aluminum alloy liquid to overflow to the outside, certain potential safety hazards exist, meanwhile, the damage of other equipment is easy to cause, and the aluminum ingot subjected to repeated casting can not be normally demolded because the aluminum alloy liquid overflows out of the whole mold, the aluminum ingot needs to be manually pried out when the aluminum ingot does not reach the front end of the continuous casting machine, at the moment, the temperature of the aluminum ingot is very high, the labor intensity of manually prizing out is high, scalding is easy, the efficiency is low, and the production requirement is difficult to meet.
In order to solve the problem of missing ingot, an aluminum ingot mould of the continuous casting machine after ingot knocking needs to be detected, and the missing aluminum ingot is knocked down from the mould.
Disclosure of Invention
Based on this, it is necessary to provide a method for controlling the demolding of aluminum ingots which are not demolded by a casting machine.
In order to solve the technical problems, the invention provides a demoulding control method of an aluminum ingot which is not demoulded by a casting machine, which comprises the following steps:
s1, setting a preset value: before the distance meter and the speed measuring sensor are started, the actual width of the die is preset to be L Wide width of Setting a contrast value L Is provided with Wherein L is Is provided with The value of (2) is (1/2L Wide width of -L Wide width of ) Setting the distance from the probe of the range finder to the plane where the position of the die measurement datum point is located as H, wherein the horizontal plane between the height from the die frame to the die bottom is selected as the die measurement datum point, and the preset value L is set Is provided with 、H Is provided with Stored in the controller;
s2, detecting the traveling speed v of the aluminum ingot mould on the production line of the casting machine in real time through a speed sensor; real-time detection of measured distance H from probe to aluminum ingot mold at reference point position by range finder Measuring ；
S3, measuring the distance H in real time when the distance meter detects Measuring Less than or equal to a preset distance H Is provided with I.e. H Measuring ≤H Is provided with When the distance meter detects the measured distance H in real time, the timer starts to count Measuring Ending the timing when the change occurs, and obtaining the time t from the starting timing to the ending timing;
s4, the controller receives the traveling speed v and the traveling time t of the aluminum ingot mould in real time, and then calculates H Measuring ≤H Is provided with Width at time L Meter with a meter body =v×t; by comparison with L Meter with a meter body And L Is provided with Judging whether an aluminum ingot which is not demoulded exists in the die or not;
specifically, if L Meter with a meter body The value of (C) is L Is provided with In the range of the value, determining that the aluminum ingot exists in the die,if L Meter with a meter body The value of (2) is not L Is provided with If the value of the aluminum ingot is within the value range, judging that the aluminum ingot does not exist in the die;
s5, if the aluminum ingot is judged to be in the die, the controller sends a secondary ingot removing instruction, so that the secondary demolding device is started to perform ingot removing operation, and the aluminum ingot in the die is removed from a notch on the front surface of the die;
and (5) finishing the detection and demoulding control of the single aluminum ingot mould according to the steps S1-S5.
Preferably, in step S2, the distance meter is a distance sensor, and the distance meter is located obliquely below the notch on the front surface of the aluminum ingot mold on the production line of the casting machine.
Preferably, in step S5, the secondary demolding device is fixed on a mounting frame of the casting machine, the secondary demolding device comprises a cylinder arranged on the mounting frame and a knocking rod, the bottom end of the cylinder is rotationally connected to the mounting frame, the middle end of the knocking rod is rotationally connected to the mounting frame, an output shaft of the cylinder is hinged to the first end of the knocking rod, a knocking block is fixed at the second end of the knocking rod, the knocking block corresponds to an aluminum ingot mold on the continuous casting machine, a rotation plane of the cylinder is parallel to a rotation plane of the knocking rod, and the cylinder is electrically connected with the controller.
Preferably, the mounting frame is rotatably connected with an air cylinder connecting seat, and the air cylinder is fixed on the air cylinder connecting seat; the tail end of the output shaft of the air cylinder is fixed with a fish-eye joint, and the fish-eye joint is hinged with the first end of the knocking rod through a movable pin; the mounting frame is fixedly provided with a bearing seat, the corresponding middle end of the knocking rod is provided with a shaft hole, a rotating shaft is inserted in the shaft hole, and two ends of the rotating shaft are respectively connected with the bearing seat in a rotating mode, so that the middle end of the knocking rod is connected to the mounting frame in a rotating mode through the bearing seat.
Preferably, the secondary demoulding device further comprises a solenoid valve, and the solenoid valve is connected with the air cylinder; the electromagnetic valve, the speed sensor and the distance measuring sensor are all electrically connected with the controller.
Preferably, the knocking hammer is located right above the aluminum ingot mould on the casting machine production line and opposite to the back of the aluminum ingot mould, and when the output shaft of the air cylinder stretches, the knocking hammer is driven to knock the back of the aluminum ingot mould on the casting machine production line, so that the aluminum ingot is separated from the notch on the front of the mould.
Preferably, the speed sensor is of the type E6B2-CWZ6C; the model of the ranging sensor is LR-TB5000.
Preferably, the distance meter is a laser distance meter, an ultrasonic distance meter or an infrared distance meter.
Preferably, the controller is a PLC controller.
The invention has the beneficial effects that: the demolding control method for the non-demolding aluminum ingot is provided, the precise detection of the non-demolding aluminum ingot is realized, and the feedback is carried out to the controller according to the measured result, so that the secondary precise demolding is controlled in real time, the normal production is ensured, and the production efficiency is improved.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the invention.
FIG. 1 is a schematic view of a secondary stripping apparatus of a preferred embodiment of the present invention secured to a casting machine;
FIG. 2 is a schematic diagram of an aluminum ingot mold according to a preferred embodiment of the invention;
FIG. 3 is a schematic diagram showing the relative positions of the aluminum ingot casting chain and the distance measuring sensor when the aluminum ingot casting chain drives the aluminum ingot mold to move according to the preferred embodiment of the invention;
FIG. 4 is a schematic diagram showing the relative positions of the aluminum ingot casting chain and the distance measuring sensor when the aluminum ingot casting chain drives the aluminum ingot mold to move according to the preferred embodiment of the invention;
FIG. 5 is a schematic diagram showing the relative positions of the aluminum ingot casting chain and the distance measuring sensor when the aluminum ingot casting chain drives the aluminum ingot mold to move according to the preferred embodiment of the invention;
FIG. 6 is a schematic diagram showing the relative positions of the aluminum ingot casting chain and the distance measuring sensor when the aluminum ingot casting chain drives the aluminum ingot mold to move according to the preferred embodiment of the invention;
FIG. 7 is a schematic drawing of a demolding control flow in accordance with a preferred embodiment of the present invention;
in the figure: casting a chain 1 by an aluminum ingot; an aluminum ingot mold 2; a mold frame 21; spindle groove 22; a mounting frame 3; a cylinder 4; knocking a rod 5; a knocking block 6; a cylinder connecting seat 7; a fish eye joint 8; a movable pin 9; a bearing seat 10; a rotating shaft 11; a range finder 13; aluminum ingot 12.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 7, the invention provides a demoulding control method of an un-demoulded aluminum ingot of a casting machine, which comprises the following steps:
s1, setting a preset value: before the distance meter 13 and the speed sensor are started, the actual width of the aluminum ingot mould 2 is preset to be L Wide width of Setting a contrast value L Is provided with Setting the distance from the probe of the distance meter 13 to the plane of the position of the die measurement datum point as H Is provided with Wherein L is Is provided with The value of (2) is (1/2L Wide width of -L Wide width of ) Preset value L to be set Is provided with 、H Is provided with Stored in the controller;
optimally, to prevent the influence of misoperation, selecting a die edgeThe 1/3 part of the height from the frame to the bottom of the die is a die measuring datum point; since the actual width of the die frame 21 of the apparatus is smaller than the actual width L of the aluminum ingot die 2 Wide width of To take the value conveniently, deduct the error, L Is provided with The value range of (1/2L) Wide width of -L Wide width of )。
S2, detecting the traveling speed v of the aluminum ingot mould 2 on the production line of the casting machine in real time through a speed sensor; real-time detection of the measured distance H of the aluminum ingot mold 2 from the probe to the measurement reference point position by the distance meter 13 Measuring ；
S3, measuring the distance H in real time when the distance meter 13 detects Measuring Is smaller than or equal to a preset actual distance H Is provided with I.e. H Measuring ≤H Is provided with At this time, the timer starts counting until the measured distance H detected in real time by the rangefinder 13 Measuring Changes (i.e. H) Measuring ＞H Is provided with When the probe of the distance meter 13 detects the gap between two adjacent molds in real time or detects the bottom of the demolded aluminum ingot mold 2, the timing is ended, and the time t from the start of timing to the end of timing is obtained;
s4, the controller receives the traveling speed v and the traveling time t of the aluminum ingot mold 2 in real time, and then calculates H Measuring ≤H Is provided with Width at time L Meter with a meter body =v×t; by comparison with L Meter with a meter body And L Is provided with To determine whether there is an unreleased aluminum ingot 12 in the aluminum ingot mold 2;
specifically, if L Meter with a meter body The value of (C) is L Is provided with If the value of (2) is within the range of (1), determining that the aluminum ingot 12 is in the aluminum ingot mold 2, and if L Meter with a meter body The value of (2) is not L Is provided with If the value of the aluminum ingot is within the range, judging that the aluminum ingot 12 does not exist in the aluminum ingot mould 2;
s5, if the aluminum ingot 12 is judged to be in the aluminum ingot mould 2, the controller sends a secondary ingot removing instruction, so that the secondary demoulding device is started to perform ingot removing operation, and the aluminum ingot 12 in the aluminum ingot mould 2 is removed from a notch on the front surface of the mould;
and (5) finishing the detection and demoulding control of the single aluminum ingot mould 2 according to the steps S1-S5.
Alternatively, ifSetting a comparison value L when the width of the die is L Is provided with Is a range of values: 1/2L Wide width of ≤L Is provided with ≤L Wide width of 。
As shown in fig. 3, the reference point of the die measurement is H, which is the height from the die rim to the die bottom Is provided with ＝1/3H。
The invention has the advantages of more exquisite design, compact structure and high degree of automation in a limited space, and can realize secondary accurate striking and demoulding, thereby eliminating the serious potential safety hazard of equipment for explosion of aluminum liquid caused by non-demoulding of aluminum ingots.
The distance meter 13 is a distance measuring sensor which irradiates obliquely to the aluminum ingot mould 2 on the continuous casting machine and measures the distance data H each time Measuring Transmitting the motion speed v of the continuous casting machine to the PLC, simultaneously, measuring the motion speed v of the continuous casting machine by the speed sensor, transmitting the motion speed of the continuous casting machine to the PLC, calculating the distance data and the speed data received by the PLC, and calculating the obtained value L Meter with a meter body And a preset value L Meter with a meter body Comparing, and judging whether an aluminum ingot which is not demoulded exists in the die according to a comparison result; if the aluminum ingot is judged to be present, the PLC controller sends a pulse signal to the electromagnetic valve to control the cylinder of the secondary demoulding device to move, so that a knocking block of the secondary demoulding device knocks against the back surface of the mould to enable the aluminum ingot 12 to drop out of the aluminum ingot mould 2; if the aluminum ingot is judged to be absent, the secondary demoulding device does not operate.
The front surface of the aluminum ingot mould is provided with an ingot groove 22, the aluminum ingot is separated from the notch of the ingot groove 22, when the secondary demoulding treatment is carried out and knocked, the knocking block knocks the back surface of the aluminum ingot mould,
as shown in FIG. 6, when there is an aluminum ingot 12 in the aluminum ingot mold 2, the height of the aluminum ingot 12 is the same as the height of the mold frame 21 (i.e., both are flush), and when there is no aluminum ingot, the mold edge is higher than the mold inner frame, because there is an identical signal for both the aluminum ingot and the aluminum ingot, it is necessary to calculate the speed and the measured distance through the continuous casting machine for a predetermined duration, if there is an aluminum ingot, the duration for the predetermined duration is longer, since the speed of the continuous casting machine is variable, the determination by time alone is not very accurate and therefore will be misdetermined, and it is also necessary to calculate the speed according to the continuous casting machineThe total length measured when the calculation condition is satisfied is calculated, and the side of the length equal to the length when the die has an aluminum ingot is judged to have a material, and the operation beating is required. If the speed of the continuous casting machine is V, the total width of the die is L, the set measurement distance is H, and the measured value is smaller than H, starting until the timing is finished to obtain the time t, if V is more than or equal to 1/2L Wide width of (i.e., when the total length measured when the calculation condition is satisfied is equal to or greater than half the width of the mold), determining that there is an aluminum ingot in the mold on the side, if V<1/2L Wide width of The side judges that the die is empty and has no material, specifically, because a gap exists between two adjacent dies, when the ranging sensor irradiates the gap between the dies, the timing is cleared and reset, and when the condition is met, the timing is restarted, thus, V is t>L Wide width of The situation of (2) does not occur.
In a preferred embodiment, in step S2, the distance meter 13 is a distance sensor, and the distance meter 13 is located obliquely below the notch on the front surface of the aluminum ingot mold 2 on the casting machine production line.
Referring to fig. 1, in a preferred embodiment, in step S5, the secondary demolding device is fixed on a mounting frame 3 of the casting machine, the secondary demolding device includes a cylinder 4 and a knock rod 5, the cylinder 4 is rotatably connected to the mounting frame 3 at its bottom end, the knock rod 5 is rotatably connected to the mounting frame 3 at its middle end, an output shaft of the cylinder 4 is hinged to a first end of the knock rod 5, a knock block 6 is fixed to a second end of the knock rod 5, the knock block 6 corresponds to an aluminum ingot mold 2 on the casting machine, a rotation plane of the cylinder 4 is parallel to a rotation plane of the knock rod 5, and the cylinder 4 is electrically connected to the controller. When detecting the aluminium ingot mould 2 of not drawing of patterns, the controller control cylinder 4 starts, and the output shaft of cylinder 4 stretches out for strike piece 6 on the pole 5 and move downwards, thereby accurate striking is at the aluminium ingot mould 2 back of not drawing of patterns, makes aluminium ingot 12 drop from aluminium ingot mould 2 positive notch, thereby accomplishes the accurate secondary drawing of patterns of once. The front of the aluminum ingot mould 2 is provided with an ingot groove 22, the aluminum ingot 12 is separated from the notch of the ingot groove 22, and when the secondary demoulding treatment is carried out, the knocking block 6 knocks the back of the aluminum ingot mould 2.
The telescopic direction of the output shaft of the air cylinder 4 is parallel to the rotation plane of the air cylinder 4, the rotation plane of the air cylinder 4 is perpendicular to the notch of the aluminum ingot mould 2, and the rotation plane of the air cylinder 4 is parallel to the vertical direction. The knocking block 6 is located at the back of the notch of the aluminum ingot mold 2 to be detected, the notch of the aluminum ingot mold 2 at the general position to be detected faces downwards, the knocking block 6 is located right above the aluminum ingot mold 2 to be detected, and the knocking block 6 knocks the back of the aluminum ingot mold 2 to be detected when falling down, so that the aluminum ingot 12 falls out from the notch on the front of the aluminum ingot mold 2.
In a preferred embodiment, the mounting frame 3 is rotatably connected with a cylinder connecting seat 7, and the cylinder 4 is fixed on the cylinder connecting seat 7; the tail end of an output shaft of the air cylinder 4 is fixed with a fish-eye joint 8, and the fish-eye joint 8 is hinged with the first end of the knocking rod 5 through a movable pin 9; the mounting frame 3 is fixedly provided with a bearing seat 10, the corresponding middle end of the knocking rod 5 is provided with a shaft hole, a rotating shaft 11 is inserted in the shaft hole, two ends of the rotating shaft 11 are respectively and rotatably connected with the bearing seat 10, so that the middle end of the knocking rod 5 is rotatably connected to the mounting frame 3 through the bearing seat 10, and the knocking block 6 can rotate along with the knocking rod 5. One end of the cylinder connecting seat 7 is rotationally connected to the mounting frame 3 through screws and the like, the other end of the cylinder connecting seat is fixed with the cylinder 4 through screws and the like, the cylinder seat 7 can rotate on the mounting frame 3, and then the cylinder 4 can also rotate on the mounting frame 3.
In a preferred embodiment, the secondary demoulding device further comprises a solenoid valve connected with the cylinder 4; the electromagnetic valve, the speed sensor and the distance measuring sensor are all electrically connected with the controller. The electromagnetic valve is a control element for controlling the cylinder 4 to quickly stretch and retract; when the controller supplies electricity to the electromagnetic valve, the electromagnetic valve works, power is supplied through compressed air, the output shaft of the control cylinder 4 stretches out, at the moment, the knocking block 6 knocks the aluminum ingot die 2 which is detected and positioned, and when the control system does not supply electricity to the electromagnetic valve, the output shaft of the cylinder 4 contracts, so that the knocking hammer is far away from the die 2.
In a preferred embodiment, the knocking block 6 is located right above the aluminum ingot mould 2 on the casting machine production line and is opposite to the back of the aluminum ingot mould 2, and when the output shaft of the air cylinder 4 stretches, the knocking block 6 is driven to knock the back of the aluminum ingot mould 2 on the casting machine production line, so that the aluminum ingot 12 is separated from the notch on the front of the mould.
In a preferred embodiment, the speed sensor is of the type E6B2-CWZ6C; the model of the ranging sensor is LR-TB5000. The speed sensor is used for measuring the speed of the continuous casting machine, the speed of the continuous casting machine is not constant, but varies at any time according to the water discharge speed, so that the speed of the continuous casting machine is measured in real time, measured data are transmitted to the PLC in real time for operation, and then the operation data are compared with set data to judge whether the die running to the detection position is demolded or not;
in a preferred embodiment, the distance meter 13 is a laser distance meter, an ultrasonic distance meter or an infrared distance meter.
In a preferred embodiment, the controller is a PLC controller. The controller is used for receiving various data and signals, and carrying out operation comparison through the received various data so as to judge, finally determine whether the signal needs to be output or not, and control the action of the electromagnetic valve so as to control the telescopic action of the air cylinder.
The casting machine comprises a continuous casting machine and an ingot knocking system, wherein the ingot knocking system is positioned at the front end of the continuous casting machine, the ingot knocking system comprises a primary demolding device and a secondary demolding device, the primary demolding device is the prior art well known to the person skilled in the art, the continuous casting machine comprises a frame and an aluminum ingot casting chain 1 fixed on the frame, an aluminum ingot mould 2 is fixedly arranged on the aluminum ingot casting chain 1, an ingot groove 22 is formed in the aluminum ingot mould 2, and an aluminum alloy solution is cast in the ingot groove 22 of the aluminum ingot mould 2 which is demolded; the aluminum ingot casting chain 1 is wound on the frame to form an annular circulating production line, and the aluminum ingot casting chain 1 is horizontally arranged, so that the aluminum ingot mould 2 is divided into an upper aluminum ingot mould with an upward opening and a lower aluminum ingot mould with a downward opening, the upper aluminum ingot mould is positioned at the top of the continuous casting machine, and the lower aluminum ingot mould is positioned at the bottom of the continuous casting machine; the detection means are located below the moulds 2 of the conveyor belt. The detection device is located at the front end of the moving direction of the aluminum ingot casting chain 1, and the knocking block 6 is located at the rear end of the moving direction of the aluminum ingot casting chain 1.
The primary demoulding device is positioned at the front end of the continuous casting machine, is a conventional automatic knocking hammer device, performs indiscriminate demoulding operation, and knocks out an aluminum ingot from a mould so that the aluminum ingot falls onto an aluminum ingot conveying line; the secondary demoulding device is positioned at the rear end of the primary demoulding device and is used for detecting the aluminum ingot mould 2 which cannot be demoulded smoothly and carrying out accurate demoulding on the aluminum ingot mould 2, so that the aluminum ingot is separated from the mould and falls onto the aluminum ingot conveying line.
Firstly, casting an aluminum alloy solution into a demoulded aluminum ingot mould 2 at the position of a distributor ingot casting, casting the aluminum alloy solution in the aluminum ingot mould 2 into an aluminum alloy ingot by a continuous casting machine, continuously running an aluminum ingot casting chain 1 on the continuous casting machine, and firstly, performing primary demould by the cast aluminum ingot mould 2 through a primary demould device, wherein most of aluminum ingots are demoulded from the mould; then, the aluminum ingot mould that has been demolded and failed drawing of patterns passes through secondary shedder, and secondary shedder detects the aluminum ingot mould 2 that fails to demold through detection device, and secondary shedder's knockout rod 5 strikes this aluminum ingot mould 2 that detects failed drawing of patterns to accomplish accurate drawing of patterns, solve the problem of knocking out the ingot omission, effectively prevent the problem that causes because of not taking off the ingot.
Fig. 3-6 are schematic diagrams of aluminum ingot mold 2 with downward opening passing through the distance meter in sequence, and the arrow represents the moving speed of aluminum ingot mold 2 with downward opening passing over the distance meter.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (9)
1. The demolding control method for the aluminum ingot which is not demolded by the casting machine is characterized by comprising the following steps of:
s1, setting a preset value: before the distance meter and the speed measuring sensor are started, the actual width of the die is preset to be L Wide width of Setting a contrast value L Is provided with Wherein L is Is provided with The value of (2) is (1/2L Wide width of -L Wide width of ) Setting the distance from the probe of the range finder to the plane where the position of the die measurement datum point is located as H Is provided with Wherein, a horizontal plane between the height from the die frame to the die bottom is selected as a die measurement datum point, and a preset value L is set Is provided with 、H Is provided with The actual width of the die frame 21 is smaller than half of the actual width L of the aluminum ingot die 2, and a gap is reserved between two adjacent dies;
s2, detecting the running of the aluminum ingot mould on the production line of the casting machine in real time through a speed sensorA travel speed v; real-time detection of measured distance H from probe to aluminum ingot mold at reference point position by range finder Measuring ；
S3, measuring the distance H in real time when the distance meter detects Measuring Less than or equal to a preset distance H Is provided with I.e. H Measuring ≤H Is provided with When the distance meter detects the measured distance H in real time, the timer starts to count Measuring Ending the timing when the change occurs, and obtaining the time t from the starting timing to the ending timing;
s4, the controller receives the traveling speed v and the traveling time t of the aluminum ingot mould in real time, and then calculates H Measuring ≤H Is provided with Width at time L Meter with a meter body =v×t; by comparison with L Meter with a meter body And L Is provided with Judging whether an aluminum ingot which is not demoulded exists in the die or not;
specifically, if L Meter with a meter body The value of (C) is L Is provided with If the value of the alloy is within the range of the value of (1), determining that an aluminum ingot exists in the die, if L Meter with a meter body The value of (2) is not L Is provided with If the value of the aluminum ingot is within the value range, judging that the aluminum ingot does not exist in the die;
s5, if the aluminum ingot is judged to be in the die, the controller sends a secondary ingot removing instruction, so that the secondary demolding device is started to perform ingot removing operation, and the aluminum ingot in the die is removed from a notch on the front surface of the die;
and (5) finishing the detection and demoulding control of the single aluminum ingot mould according to the steps S1-S5.
2. The method according to claim 1, wherein in step S2, the distance meter is a distance sensor, and the distance meter is located obliquely below a notch on the front surface of the aluminum ingot mold on the casting machine production line.
3. The method for controlling demolding according to claim 2, wherein in step S5, the secondary demolding device is fixed on a mounting frame of the casting machine, the secondary demolding device comprises a cylinder and a knocking rod, the cylinder is arranged on the mounting frame, the bottom end of the cylinder is rotatably connected to the mounting frame, the middle end of the knocking rod is rotatably connected to the mounting frame, the output shaft of the cylinder is hinged to the first end of the knocking rod, a knocking block is fixed to the second end of the knocking rod, the knocking block corresponds to an aluminum ingot mold on the continuous casting machine, the rotation plane of the cylinder is parallel to the rotation plane of the knocking rod, and the cylinder is electrically connected with the controller.
4. The demolding control method as claimed in claim 3, wherein a cylinder connecting seat is rotatably connected to the mounting frame, and the cylinder is fixed to the cylinder connecting seat; the tail end of the output shaft of the air cylinder is fixed with a fish-eye joint, and the fish-eye joint is hinged with the first end of the knocking rod through a movable pin; the mounting frame is fixedly provided with a bearing seat, the corresponding middle end of the knocking rod is provided with a shaft hole, a rotating shaft is inserted in the shaft hole, and two ends of the rotating shaft are respectively connected with the bearing seat in a rotating mode, so that the middle end of the knocking rod is connected to the mounting frame in a rotating mode through the bearing seat.
5. The method of claim 4, wherein the secondary stripping means further comprises a solenoid valve connected to the cylinder; the electromagnetic valve, the speed measuring sensor and the distance sensor are all electrically connected with the controller.
6. The method of claim 5, wherein the knocking block is located right above the aluminum ingot mold on the casting machine production line and is opposite to the back of the aluminum ingot mold, and the output shaft of the cylinder drives the knocking block to knock the back of the aluminum ingot mold on the casting machine production line when the output shaft of the cylinder stretches, so that the aluminum ingot is separated from the notch on the front of the mold.
7. The demolding control method as claimed in claim 5, wherein the speed sensor is of the type E6B2-CWZ6C; the model of the distance sensor is LR-TB5000.
8. The release control method of claim 7, wherein the rangefinder is a laser rangefinder or an infrared rangefinder.
9. The release control method of claim 1, wherein the controller is a PLC controller.
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