CN110653266A - Position control system and method for induction heating process of magnesium alloy plate strip - Google Patents
Position control system and method for induction heating process of magnesium alloy plate strip Download PDFInfo
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- CN110653266A CN110653266A CN201810698800.3A CN201810698800A CN110653266A CN 110653266 A CN110653266 A CN 110653266A CN 201810698800 A CN201810698800 A CN 201810698800A CN 110653266 A CN110653266 A CN 110653266A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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Abstract
The invention discloses a position control system for an induction heating process of a magnesium alloy plate strip, which is connected with an induction heating coil and comprises: a first ranging element; a second ranging element; the width limiting block is arranged in the width direction of the magnesium alloy plate strip, and a first pressure sensor is arranged on the inner end face, in contact with the width edge of the magnesium alloy plate strip, of the width limiting block; a width stopper adjusting element connected with the width stopper; the height limiting block is provided with a second pressure sensor on the end face, which is in contact with the surface of the magnesium alloy plate belt; a height stopper adjusting element connected with the height stopper; and the control device is respectively connected with the first distance measuring element, the second distance measuring element, the first pressure sensor, the second pressure sensor, the width limiting block adjusting element and the height limiting block adjusting element.
Description
Technical Field
The present invention relates to systems and methods, and more particularly, to a position control system and method.
Background
The magnesium alloy material is called as a green engineering structure material in the 21 st century because of the advantages of light weight, high specific strength, good shock absorption, good machining performance, good anti-electromagnetic interference performance, easy recovery and the like, and has wide application prospect in the aerospace and automobile material industries. At present, the continuous high-strength rolling of the magnesium alloy plate strip is difficult, the magnesium alloy plate strip is easy to break due to cross striations at normal temperature, the magnesium alloy plate strip is easy to break due to microcracks in the uncoiling and coiling processes at room temperature, and the magnesium alloy plate strip is easy to break due to the cross striations in the coiling process, so that various defects are generated, even the magnesium alloy plate strip is broken. Researches show that magnesium alloy has poor room temperature formability and good plastic forming performance only in a warm state, and a magnesium alloy plate strip or a magnesium alloy plate coil is rolled at a certain temperature to obtain good tensile property, so that temperature control in the magnesium alloy plate strip rolling process has a crucial influence on the quality of the magnesium alloy plate strip.
In order to meet the requirements of continuous heating and continuous rolling of the magnesium alloy plate strip, the magnesium alloy plate strip needs to be continuously heated on line by an induction heating method. In the rolling process, the magnesium alloy plate strip is rolled and deformed to cause the plate strip in a heating area to generate displacement change and vibration with certain amplitude, and when the plate strip vibrates up and down, the distance between the plate strip and the inductor is changed, so that the heating temperature of the plate strip is changed, and the stable rolling of the plate strip and the stable product quality are not facilitated; when metal flows on two sides of the strip are not completely consistent in the rolling process, the strip may be changed in a certain transverse position, the strip may deviate from the central area of the induction heater, temperature distribution on two sides of the strip width is asymmetric, rolling defects are aggravated when the difference is large, and even production accidents of strip rolling breakage or tearing occur. Therefore, the position accurate control of the magnesium alloy plate strip induction heating process has important influence on the stable and efficient continuous rolling of the plate strip.
In view of this, it is desirable to obtain a position control system, which can realize accurate control of the strip position when being used in the induction heating process of the magnesium alloy strip, thereby facilitating the stabilization of the heating temperature and the temperature distribution of the strip in the continuous rolling process, improving the forward movement of the strip heating process, and obtaining the high-quality magnesium alloy strip.
Disclosure of Invention
One of the purposes of the invention is to provide a position control system for the induction heating process of a magnesium alloy plate strip, which can realize the accurate control of the position of the magnesium alloy plate strip when the system is used in the induction heating process of the magnesium alloy plate strip, thereby being beneficial to the stability of the heating temperature and the temperature distribution of the magnesium alloy plate strip in the continuous rolling process, improving the smooth operation of the heating process of the magnesium alloy plate strip and obtaining the high-quality magnesium alloy plate strip.
In order to achieve the above object, the present invention provides a position control system for an induction heating process of a magnesium alloy strip, which is connected to an induction heating coil, and further, the position control system comprises:
the first distance measuring element is used for detecting the width of the magnesium alloy plate strip;
the second distance measuring element is used for detecting the height distance between the magnesium alloy plate strip and the induction heating coil;
the width limiting block is arranged in the width direction of the magnesium alloy plate strip, and a first pressure sensor is arranged on the inner end face, in contact with the width edge of the magnesium alloy plate strip, of the width limiting block;
a width stopper adjusting element connected to the width stopper to drive the width stopper to move in a width direction of the magnesium alloy plate strip;
the height limiting block is provided with a second pressure sensor on the end face, which is in contact with the surface of the magnesium alloy plate belt;
a height stopper adjusting element connected to the height stopper to drive the height stopper to move in a height direction of the magnesium alloy sheet strip;
and the control device is respectively connected with the first distance measuring element, the second distance measuring element, the first pressure sensor, the second pressure sensor, the width limit block adjusting element and the height limit block adjusting element, and controls the driving action of the width limit block adjusting element and the height limit block adjusting element based on data transmitted by the first distance measuring element, the second distance measuring element, the first pressure sensor and the second pressure sensor.
In the technical scheme, the induction heating coil is used for continuously heating the magnesium alloy plate strip on line. In addition, in some embodiments, the position control system for the magnesium alloy strip induction heating process of the present invention may be applied to a magnesium alloy strip rolling process, wherein: firstly, a position control system connected with an induction heating coil and used for the induction heating process of the magnesium alloy plate strip is arranged on an induction heating system support, during rolling, the magnesium alloy plate strip is uncoiled by an uncoiler and then enters the position control system used for the induction heating process of the magnesium alloy plate strip to be heated to a required temperature, then enters a rolling mill to be rolled to a required thickness, and finally the magnesium alloy plate strip is coiled into a magnesium alloy plate coil by a coiling machine. The position control system for the magnesium alloy plate strip induction heating process can be connected with the telescopic fixing rods, so that the position control system for the magnesium alloy plate strip induction heating process is fixed on the induction heating system support through the telescopic fixing rods. It should be noted that the induction heating coil, the induction heating system support, the uncoiler, the rolling mill and the coiler all belong to the prior art, and the structural features thereof are not described herein again.
Further, in the position control system of the present invention, the first distance measuring element and/or the second distance measuring element is a distance meter or a position sensor.
Furthermore, in the position control system of the present invention, the width limiting block and the height limiting block which are disposed on the same side in the width direction of the magnesium alloy strip are integrated on the same L-shaped limiting block.
In the technical solution of the present invention, in some embodiments, the L-shaped stopper may be connected to the connection plate and fixed to the induction heating coil through the connection plate.
Further, in the position control system of the present invention, the width stopper adjusting element and/or the height stopper adjusting element includes a hydraulic lever mechanism or a cylinder rod structure or a lead screw thread mechanism.
Further, in the position control system of the invention, a spacing control plate is fixedly arranged on one side of the induction heating coil close to the magnesium alloy plate strip.
In the technical scheme, in order to prevent the magnesium alloy plate strip from directly contacting with the induction heating coil, a spacing control plate is fixedly arranged on one side of the induction heating coil close to the magnesium alloy plate strip, and in some embodiments, the thickness of the spacing control plate can be 0.1-20 mm.
Further, in the position control system according to the present invention, the induction heating coil is connected to an induction heating coil driving element, and the induction heating coil driving element is connected to the control device.
Further, the position control system of the present invention further includes: the telescopic limiting block is connected with the width limiting block, and the telescopic limiting block can move relative to the width limiting block to stretch out or retract from the width limiting block in the height direction of the magnesium alloy plate strip.
In the technical scheme, in some embodiments, the telescopic limiting block and the width limiting block can move relatively in a mode of arranging a spring on the telescopic limiting block so as to extend out of or retract back from the width limiting block in the height direction of the magnesium alloy plate strip. In addition, when the height interval between the magnesium alloy plate strip and the induction heating coil needs to be larger than the height of the width limiting block, the telescopic limiting block extends out.
Accordingly, another object of the present invention is to provide a method for controlling the position of a magnesium alloy strip by using the position control system for the induction heating process of the magnesium alloy strip, which is simple and easy to operate, and can realize precise control of the position of the magnesium alloy strip, thereby facilitating the stabilization of the heating temperature and the temperature distribution of the magnesium alloy strip in the continuous rolling process, improving the smoothness of the heating process of the magnesium alloy strip, and obtaining the magnesium alloy strip with high quality.
In order to achieve the above object, the present invention provides a method for controlling a position of a magnesium alloy strip using the above position control system for an induction heating process of the magnesium alloy strip, comprising:
the first distance measuring element and the second distance measuring element measure the width of the magnesium alloy plate strip and the height distance between the magnesium alloy plate strip and the induction heating coil in real time, and then the measurement results are sent to the control device;
the control device calculates the width and the height of the width limiting block and the height limiting block needing to be opened in real time based on the measurement result, and controls the driving action of the width limiting block adjusting element and the height limiting block adjusting element based on the calculation result;
when the width of the magnesium alloy plate strip changes, the control device calculates the displacement of the width limiting block, which needs to be moved, based on the width change, sends the displacement to the width limiting block adjusting element and controls the width limiting block adjusting element to execute adjusting operation, so that the position of the width limiting block is matched with the width of the magnesium alloy plate strip;
when the magnesium alloy plate strip deviates in the width direction and the deviation exceeds a preset maximum allowable value, the control device calculates a width position correction quantity and sends the width position correction quantity to a width limiting block adjusting element at a side close to the magnesium alloy plate strip so as to adjust the width limiting block at the side towards the width center direction of the magnesium alloy plate strip and push the magnesium alloy plate strip back to a set centering position, in the process, a first pressure sensor detects a first pressure value applied to the width limiting block by the magnesium alloy plate strip in real time, and the control device adjusts the position of the width limiting block through the width limiting block adjusting element on the basis of the first pressure value, so that the first pressure value is always within a first set value range, and the position correction of the magnesium alloy plate strip in the width direction is completed until the first pressure value is gradually reduced to 0;
when the height distance between the magnesium alloy plate strip and the induction heating coil is larger than a set height distance value, the control device controls the height limiting block adjusting element to lift the height limiting block until the height distance between the magnesium alloy plate strip and the induction heating coil is smaller than or equal to the set height distance value, in the process, the second pressure sensor detects a second pressure value applied to the height limiting block by the magnesium alloy plate strip in real time, the control device adjusts the position of the height limiting block through the height limiting block adjusting element based on the second pressure value, the second pressure value is always within a second set value range, and the position of the magnesium alloy plate strip in the height direction is corrected until the second pressure value is gradually reduced to 0.
Compared with the prior art, the position control system and the position control method for the induction heating process of the magnesium alloy plate strip have the following beneficial effects that:
(1) the position control system for the magnesium alloy plate strip induction heating process can realize accurate control of the position of the magnesium alloy plate strip in the magnesium alloy plate strip induction heating process, thereby being beneficial to the stability of the heating temperature and the temperature distribution of the magnesium alloy plate strip in the continuous rolling process, improving the smooth operation of the magnesium alloy plate strip heating process and obtaining the high-quality magnesium alloy plate strip.
(2) The method for controlling the position of the magnesium alloy plate strip by adopting the position control system for the induction heating process of the magnesium alloy plate strip is simple and easy to operate, and the method can realize the accurate control of the position of the magnesium alloy plate strip, thereby being beneficial to the stabilization of the heating temperature and the temperature distribution of the magnesium alloy plate strip in the continuous rolling process, improving the smooth operation of the heating process of the magnesium alloy plate strip and obtaining the high-quality magnesium alloy plate strip.
Drawings
Fig. 1 is a schematic view of a position control system for an induction heating process of a magnesium alloy plate strip according to the present invention applied to rolling of the magnesium alloy plate strip.
Fig. 2 is a schematic structural diagram of a position control system for an induction heating process of a magnesium alloy plate strip according to an embodiment of the present invention from a perspective.
Fig. 3 is a schematic structural diagram of a position control system for an induction heating process of a magnesium alloy plate strip according to another aspect of the present invention.
Fig. 4 is a schematic structural diagram of an L-shaped stopper, a telescopic stopper, a width stopper adjusting element and a height stopper adjusting element in the position control system for the induction heating process of the magnesium alloy plate strip according to an embodiment of the present invention.
Detailed Description
The position control system and method for induction heating of magnesium alloy strip according to the present invention will be further explained and illustrated with reference to the drawings and the specific embodiments, which, however, should not be construed to unduly limit the technical scope of the present invention.
Fig. 1 is a schematic view of a position control system for an induction heating process of a magnesium alloy plate strip according to the present invention applied to rolling of the magnesium alloy plate strip.
As shown in fig. 1, the position control system 3 for the induction heating process of the magnesium alloy strip according to the present invention is applied to the rolling of the magnesium alloy strip 1. Firstly, a position control system 3 connected with an induction heating coil 12 (shown in fig. 2) is arranged on an induction heating system support 4, during rolling, a magnesium alloy plate strip 1 enters the position control system 3 after being uncoiled by an uncoiler 2 and is heated to a required temperature, then enters a rolling mill 5 to be rolled to a required thickness, and finally the magnesium alloy plate strip 1 is coiled into a magnesium alloy plate coil through a coiling machine 6. It should be noted that the induction heating coil 12, the induction heating system support 4, the uncoiler 2, the rolling mill 5 and the coiler 6 are all in the prior art, and the structural features thereof are not described herein again.
The specific structure of the position control system 3 can be further referred to fig. 2, 3 and 4. Fig. 2 is a schematic structural diagram of a position control system for an induction heating process of a magnesium alloy plate strip according to an embodiment of the present invention from a perspective. Fig. 3 is a schematic structural diagram of a position control system for an induction heating process of a magnesium alloy plate strip according to another aspect of the present invention. Fig. 4 is a schematic structural diagram of an L-shaped stopper, a telescopic stopper, a width stopper adjusting element and a height stopper adjusting element in the position control system for the induction heating process of the magnesium alloy plate strip according to an embodiment of the present invention.
As shown in fig. 2, 3 and 4, and optionally in conjunction with fig. 1, in this embodiment the position control system 3 is connected to a telescopic fixing rod 13 so that the position control system 3 is fixed to the induction heating system support 4 by the telescopic fixing rod 13. The position control system 3 comprises a first distance measuring element 7 for detecting the width of the magnesium alloy plate strip 1, a second distance measuring element 8 for detecting the height distance between the magnesium alloy plate strip 1 and an induction heating coil 12, a width limiting block 10-2 arranged in the width direction of the magnesium alloy plate strip 1, a width limiting block adjusting element 11-2 connected with the width limiting block 10-2, a height limiting block 10-1, a height limiting block adjusting element 11-1 and a control device (not shown in the figure). Wherein, the width limiting block 10-2 and the height limiting block 10-1 which are arranged on the same side of the magnesium alloy plate strip 1 in the width direction are integrated on the same L-shaped limiting block 10, so that the L-shaped limiting block 10 is connected with the width limiting block adjusting element 11-2. The width limiting block adjusting element 11-2 is used for driving the width limiting block 10-2 to move in the width direction of the magnesium alloy plate strip 1. The width limiting block adjusting element 11-2 is connected with the height limiting block adjusting element 11-1, so that the connection between the height limiting block adjusting element 11-1 and the height limiting block 10-1 is indirectly realized, and the height limiting block 10-1 is driven to move in the height direction of the magnesium alloy plate strip 1 through the height limiting block adjusting element 11-1. In addition, a first pressure sensor (not shown in the figure) is arranged on the inner end surface of the width limiting block 10-2, which is contacted with the width edge of the magnesium alloy plate strip 1. And a second pressure sensor (not shown in the figure) is arranged on the end face of the height limiting block 10-1, which is in contact with the surface of the magnesium alloy plate strip 1. The control device is connected with the first distance measuring element 7, the second distance measuring element 8, the first pressure sensor, the second pressure sensor, the width limit block adjusting element 11-2 and the height limit block adjusting element 11-1 respectively, and is used for controlling data transmitted by the first distance measuring element 7, the second distance measuring element 8, the first pressure sensor and the second pressure sensor and controlling the driving action of the width limit block adjusting element 11-2 and the height limit block adjusting element 11-1. In addition, in the present embodiment, the first distance measuring element 7 and/or the second distance measuring element 8 may be a distance meter (in other embodiments, may be a position sensor). The width-limiting stopper adjusting element 11-2 and/or the height-limiting stopper adjusting element 11-1 may include a hydraulic lever mechanism (in other embodiments, a cylinder lever structure may be included, and in other embodiments, a lead screw threaded mechanism may be included).
In addition, as can be seen from fig. 3 and 4, the height stopper adjusting element 11-1 is connected to the connecting plate 14, so that the L-shaped stopper 10 is indirectly connected to the connecting plate 14, so that the L-shaped stopper 10 is fixed to the induction heating coil 12 through the connecting plate 14. And a spacing control plate 9 is fixedly arranged on one side of the induction heating coil 12 close to the magnesium alloy plate strip 1 to prevent the magnesium alloy plate strip 1 from directly contacting the induction heating coil 12. In the present embodiment, the thickness of the pitch control plate 9 may be 0.1 to 20 mm. It should be noted that the induction heating coil 12 is connected to an induction heating coil driving element (not shown in the drawings) to drive the induction heating coil 12 to heat the magnesium alloy strip 1. The induction heating coil driving element is connected to a control device for controlling the driving action of the induction heating coil driving element.
As can be seen with further reference to FIG. 4, the position control system 3 further includes a telescoping stop block 10-3 connected to the width stop block 10-2. In this embodiment, the telescopic stopper 10-3 and the width stopper 10-2 can be relatively moved by providing a spring on the telescopic stopper 10-3 so as to extend or retract from the width stopper 10-2 in the height direction of the magnesium alloy plate strip 1. When the height distance between the magnesium alloy plate strip 1 and the induction heating coil 12 needs to be larger than the height of the width limiting block 10-2, the telescopic limiting block 10-3 extends out of the width limiting block 10-2.
With reference to fig. 1 to 4, the method for controlling the position of the magnesium alloy strip by using the position control system for the induction heating process of the magnesium alloy strip of the present invention comprises:
the first distance measuring element 7 and the second distance measuring element 8 measure the width of the magnesium alloy strip 1 and the height distance between the magnesium alloy strip 1 and the induction heating coil 12 in real time, and then send the measurement results to the control device.
The control device calculates the width and height of the width stopper 10-2 and the height stopper 10-1 to be opened in real time based on the measurement result, and controls the driving action of the width stopper adjusting element 11-2 and the height stopper adjusting element 11-1 based on the calculation result.
When the width of the magnesium alloy plate strip 1 changes, the control device calculates the displacement of the width limiting block 10-2 to be moved based on the width change, sends the displacement to the width limiting block adjusting element 11-2 and controls the width limiting block adjusting element to perform adjusting operation, so that the position of the width limiting block 10-2 is matched with the width of the magnesium alloy plate strip 1. Wherein, when the magnesium alloy plate strip 1 deviates in the width direction and the deviation exceeds the preset maximum allowable value, the control device calculates the width position correction quantity, sends the width position correction quantity to the width limiting block adjusting element 11-2 at the side close to the magnesium alloy plate strip 1 to adjust the width limiting block 10-2 at the side towards the width center direction of the magnesium alloy plate strip 1, and pushes the magnesium alloy plate strip 1 back to the set centering position, in the process, the first pressure sensor detects the first pressure value applied to the width limiting block 10-2 by the magnesium alloy plate strip 1 in real time, the control device adjusts the position of the width limiting block 10-2 through the width limiting block adjusting element 11-2 based on the first pressure value, so that the first pressure value is always in the first set value range until the first pressure value is gradually reduced to 0, it indicates that the position correction of the magnesium alloy sheet strip 1 in the width direction is completed.
In addition, when the height distance between the magnesium alloy plate strip 1 and the induction heating coil 12 is larger than a set height distance value, the control device controls the height limiting block adjusting element 11-1 to lift the height limiting block 10-1 until the height distance between the magnesium alloy plate strip 1 and the induction heating coil 12 is smaller than or equal to the set height distance value, in the process, the second pressure sensor detects a second pressure value applied to the height limiting block 10-1 by the magnesium alloy plate strip 1 in real time, the control device adjusts the position of the height limiting block 10-1 through the height limiting block adjusting element 11-1 based on the second pressure value, the second pressure value is always in a second set value range, and when the second pressure value is gradually reduced to 0, the completion of position correction of the magnesium alloy plate strip 1 in the height direction is indicated.
Therefore, the position control system for the magnesium alloy plate strip induction heating process can realize accurate control of the position of the magnesium alloy plate strip in the magnesium alloy plate strip induction heating process, is beneficial to the stability of the heating temperature and the temperature distribution of the magnesium alloy plate strip in the continuous rolling process, improves the smoothness of the magnesium alloy plate strip heating process, and obtains the high-quality magnesium alloy plate strip. The method for controlling the position of the magnesium alloy plate strip by adopting the position control system used in the induction heating process of the magnesium alloy plate strip is simple and easy to operate, and is widely suitable for the fields of continuous rolling of magnesium alloy and the like.
It should be noted that the prior art in the protection scope of the present invention is not limited to the examples given in the present application, and all the prior art which is not inconsistent with the technical scheme of the present invention, including but not limited to the prior patent documents, the prior publications and the like, can be included in the protection scope of the present invention.
In addition, the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradictory to each other.
It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is apparent that the present invention is not limited to the above embodiments and similar changes or modifications can be easily made by those skilled in the art from the disclosure of the present invention and shall fall within the scope of the present invention.
Claims (8)
1. A position control system for use in an induction heating process of a magnesium alloy strip coupled to an induction heating coil, the position control system comprising:
the first distance measuring element is used for detecting the width of the magnesium alloy plate strip;
the second distance measuring element is used for detecting the height distance between the magnesium alloy plate strip and the induction heating coil;
the width limiting block is arranged in the width direction of the magnesium alloy plate strip, and a first pressure sensor is arranged on the inner end face, in contact with the width edge of the magnesium alloy plate strip, of the width limiting block;
a width stopper adjusting element connected to the width stopper to drive the width stopper to move in a width direction of the magnesium alloy plate strip;
the height limiting block is provided with a second pressure sensor on the end face, which is in contact with the surface of the magnesium alloy plate belt;
a height stopper adjusting element connected to the height stopper to drive the height stopper to move in a height direction of the magnesium alloy sheet strip;
and the control device is respectively connected with the first distance measuring element, the second distance measuring element, the first pressure sensor, the second pressure sensor, the width limit block adjusting element and the height limit block adjusting element, and controls the driving action of the width limit block adjusting element and the height limit block adjusting element based on data transmitted by the first distance measuring element, the second distance measuring element, the first pressure sensor and the second pressure sensor.
2. The position control system of claim 1, wherein the first and/or second ranging element is a range finder or a position sensor.
3. The position control system according to claim 1, wherein the width stopper and the height stopper provided on the same side in the width direction of the magnesium alloy sheet are integrated on the same L-shaped stopper.
4. The position control system of claim 1, wherein the width-stop adjusting element and/or the height-stop adjusting element comprises a hydraulic lever mechanism or a cylinder lever structure or a lead screw thread mechanism.
5. The position control system of claim 1, wherein a spacing control plate is further fixedly disposed on a side of the induction heating coil adjacent to the magnesium alloy strip.
6. The position control system of claim 1, wherein the induction heating coil is connected to an induction heating coil drive element, the induction heating coil drive element being connected to the control device.
7. The position control system according to any one of claims 1 to 6, further comprising: the telescopic limiting block is connected with the width limiting block, and the telescopic limiting block can move relative to the width limiting block to stretch out or retract from the width limiting block in the height direction of the magnesium alloy plate strip.
8. A method of controlling the position of a magnesium alloy strip using a position control system as claimed in any one of claims 1 to 7, comprising:
the first distance measuring element and the second distance measuring element measure the width of the magnesium alloy plate strip and the height distance between the magnesium alloy plate strip and the induction heating coil in real time, and then the measurement results are sent to the control device;
the control device calculates the width and the height of the width limiting block and the height limiting block needing to be opened in real time based on the measurement result, and controls the driving action of the width limiting block adjusting element and the height limiting block adjusting element based on the calculation result;
when the width of the magnesium alloy plate strip changes, the control device calculates the displacement of the width limiting block, which needs to be moved, based on the width change, sends the displacement to the width limiting block adjusting element and controls the width limiting block adjusting element to execute adjusting operation, so that the position of the width limiting block is matched with the width of the magnesium alloy plate strip;
when the magnesium alloy plate strip deviates in the width direction and the deviation exceeds a preset maximum allowable value, the control device calculates a width position correction quantity and sends the width position correction quantity to a width limiting block adjusting element at a side close to the magnesium alloy plate strip so as to adjust the width limiting block at the side towards the width center direction of the magnesium alloy plate strip and push the magnesium alloy plate strip back to a set centering position, in the process, a first pressure sensor detects a first pressure value applied to the width limiting block by the magnesium alloy plate strip in real time, and the control device adjusts the position of the width limiting block through the width limiting block adjusting element on the basis of the first pressure value, so that the first pressure value is always within a first set value range, and the position correction of the magnesium alloy plate strip in the width direction is completed until the first pressure value is gradually reduced to 0;
when the height distance between the magnesium alloy plate strip and the induction heating coil is larger than a set height distance value, the control device controls the height limiting block adjusting element to lift the height limiting block until the height distance between the magnesium alloy plate strip and the induction heating coil is smaller than or equal to the set height distance value, in the process, the second pressure sensor detects a second pressure value applied to the height limiting block by the magnesium alloy plate strip in real time, the control device adjusts the position of the height limiting block through the height limiting block adjusting element based on the second pressure value, the second pressure value is always within a second set value range, and the position of the magnesium alloy plate strip in the height direction is corrected until the second pressure value is gradually reduced to 0.
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| CN113200285A (en) * | 2021-06-21 | 2021-08-03 | 芜湖顶贴电子有限公司 | Segmented transmission system of reflow oven |
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| CN107699679A (en) * | 2017-10-13 | 2018-02-16 | 燕山大学 | A kind of device and technique of the continuous sensing heating of conjugation-type cam bit |
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| CN113200285B (en) * | 2021-06-21 | 2022-09-27 | 芜湖顶贴电子有限公司 | Segmented transmission system of reflow oven |
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