CN117696623B - Metal strip rolling equipment and control method thereof - Google Patents
Metal strip rolling equipment and control method thereof Download PDFInfo
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- CN117696623B CN117696623B CN202410167265.4A CN202410167265A CN117696623B CN 117696623 B CN117696623 B CN 117696623B CN 202410167265 A CN202410167265 A CN 202410167265A CN 117696623 B CN117696623 B CN 117696623B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 160
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 239000006247 magnetic powder Substances 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 11
- 239000011229 interlayer Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000006872 improvement Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses metal strip rolling equipment and a control method thereof, wherein the metal strip rolling equipment comprises a discharging mechanism and a rolling group, the rolling group comprises a lower rolling wheel and an upper rolling wheel, and the rolling equipment further comprises: the tension adjusting mechanism comprises a magnetic powder clutch arranged in the discharging mechanism, a tension controller is arranged at the position, close to the feeding direction of the strip, of each rolling group, and a tension sensor is arranged on the tension controller; the thickness control assembly is arranged at the last group of rolling groups, the lower rolling wheel and the upper rolling wheel are arranged in a fixed frame with a grooved middle part, the thickness control assembly comprises an adjusting piece which is rotatably arranged on the inner side wall of the fixed frame, the tail end of the adjusting piece is connected with a wedge block with an inclined plane, the wedge block is clamped between the lower rolling wheel and the upper rolling wheel, the top of the upper rolling wheel is abutted to a limiting frame, the rotating speed of a corresponding rolling mechanism can be adjusted according to the tension of each section of strip, and the distance between the rollers of the rolling mechanism at the tail end can be flexibly and accurately controlled.
Description
Technical Field
The invention relates to the field of metal rolling, in particular to metal strip rolling equipment and a control method thereof.
Background
The metal strip is a strip-shaped metal material supplied in a coiled mode with a large length-width ratio, the strip with the width being larger than 600mm is called a wide strip, the strip with the thickness being smaller than 600mm is called a narrow strip, the thickness of the strip can be as thin as 0.001mm, the strip is produced by a hot rolling method or a cold rolling method, the strip can be used for welding sheets, wafer assemblies, shells and the like after being cut into required shapes, the strip is required to be rolled to the corresponding thickness after being produced due to different strip thicknesses required by different application occasions, the existing rolling mode is to adopt a plurality of groups of rolling equipment, the strip is gradually pressed to the proper thickness through a pressing roller group with continuously reduced spacing, and the strip is not damaged when the thickness requirement is met.
However, with this rolling method, the following problems occur: 1, as the material belt is thicker and has larger rigidity, the distance between the rolling mechanisms is not suitable to be large, the optimal rotating speeds on different rolling mechanisms are difficult to adjust, and the uneven rolling or the damage to the belt is easily caused by the improper feeding speed; 2, although each press roller group is controlling the thickness, two strips with different thicknesses are sometimes required to be obtained in a short time, the adjustment of millimeter level is difficult to achieve when the thickness is adjusted, the adjustment precision is low, the load is required when the thickness is adjusted, and the load on the adjustment structure is large; 3, in the cold rolling process, the refrigerant of the compression roller needs to be continuously circulated, the heat exchange efficiency is low, and larger energy consumption cost needs to be generated.
Therefore, the scheme aims to provide metal strip rolling equipment and a control method thereof, which can adjust the rotating speed of a corresponding rolling mechanism according to the tension of each section of strip, flexibly and accurately control the distance between the rollers of the rolling mechanism at the extreme end, so that strips with different thicknesses and uniform rolling can be obtained, and the heat exchange efficiency can be improved and meanwhile, the energy is saved.
Disclosure of Invention
The invention provides a metal strip rolling device and a control method thereof, which can effectively solve the problems.
The invention is realized in the following way:
The utility model provides a metal strip rolling equipment, includes a blowing mechanism that is used for placing whole coil of strip material, the material loops through a plurality of roll-in groups, the roll-in group contains lower roller wheel and driven last roller wheel, a plurality of lower roller wheel is all through the gear rotation on the lower roller wheel of the gear drive on the servo motor, rolling equipment still includes:
The tension adjusting mechanism comprises a magnetic powder clutch arranged in the discharging mechanism, the magnetic powder clutch is used for controlling discharging tension of the discharging mechanism, a tension controller is arranged at the position, close to the feeding direction of the strip, of each rolling group, a tension sensor is arranged on the tension controller, the tension sensor detects tension of the input strip and guides rotation speed data of the rolling group at the rear end into the rolling group at the front end, and a servo motor of the rolling group at the front end is used for speed changing adjustment;
The thickness control assembly is arranged at the last group of rolling groups, the lower rolling wheel and the upper rolling wheel are arranged in a fixed frame with a grooved middle part, an outer mounting seat of the lower rolling wheel is fixedly connected to the lower part of the inner side of the fixed frame, an outer mounting seat of the upper rolling wheel is movably arranged at the upper part of the inner side of the fixed frame, the thickness control assembly comprises an adjusting piece rotatably mounted to the inner side wall of the fixed frame, the tail end of the adjusting piece is connected with a wedge block with an inclined plane, the wedge block is clamped between the lower rolling wheel and the upper rolling wheel, the top of the upper rolling wheel is abutted to a limiting frame, and when the gap between the upper rolling wheel and the lower rolling wheel needs to be adjusted, the adjusting piece rotates and pushes out or retreats the wedge block so that the upper rolling wheel moves upwards or descends;
The refrigerant control assembly comprises a feeding structure connected with the upper roller wheel in an axial direction, the upper roller wheel is hollow, the feeding structure is used for introducing a refrigerant into the hollow upper roller wheel, an inner sleeve is fixed on the feeding structure, an interlayer is formed on the inner sleeve and the inner side wall of the upper roller wheel, a fixed point heat exchange structure is arranged in the inner sleeve, and the fixed point heat exchange structure is used for exchanging heat with the refrigerant in the upper roller wheel and cooling the outer wall of the upper roller wheel.
As a further improvement, the inner side of the fixed frame is provided with a threaded hole, the adjusting piece comprises a rotating part meshed with the threaded hole, a rotating head is connected to the rotating part in the direction close to the outer side of the fixed frame, a matching part is connected to one side of the rotating part close to the inner side of the fixed frame, the matching part is rotatably installed in the wedge block, and when the rotating head rotates, the wedge block moves forwards or backwards.
As a further improvement, the included angle between the inclined plane of the wedge-shaped block and the horizontal plane is 1-2 degrees.
As a further improvement, a plurality of vertical thread grooves are formed in the top of the fixed frame, the limiting frame comprises a locking frame attached to the top of the fixed frame, a plurality of screws matched with the thread grooves are arranged on the locking frame, a plurality of pressing rods which are abutted to the outer mounting seats of the upper roller are vertically fixedly connected to the bottom of the locking frame, and after the position of the upper roller is adjusted by the wedge-shaped block, the locking frame is locked on the fixed frame, and the pressing rods are tightly pressed above the upper roller.
As a further improvement, an indicator is arranged on the locking frame, a corner frame is arranged at the top of the outer mounting frame of the upper roller, a thimble is welded at the top of the corner frame, and when the upper roller moves upwards under the top of the wedge block, the thimble toggles the pointer of the indicator.
As a further improvement, the feeding structure comprises a rotary joint which is axially matched with the upper roller, the outer side of the rotary joint is connected with the feeding end of the refrigerant, and a material separating disc which is communicated with the inner part of the upper roller is arranged on the inner side of the rotary joint.
As a further improvement, a bearing seat is arranged at one side of the upper roller wheel, which is far away from the rotary joint, and is attached to the tail end of the fixed-point heat exchange structure, and a plurality of sensors for detecting refrigerants are arranged at the outer side of the bearing seat.
As a further improvement, a feeding pipe is arranged at the feeding position of the rotary joint, the fixed-point heat exchange structure comprises an inner closed cylinder, a plurality of semiconductor refrigerators are arranged on the inner side of the inner closed cylinder, and refrigerating sheets of the semiconductor refrigerators are tightly attached to the inner side wall of the inner closed cylinder.
The invention also provides a control method of the metal strip rolling equipment, which is applied to the metal strip rolling equipment and comprises the following steps:
s1, performing S1; presetting the height of each roll group according to the required thickness of the strip material, and adjusting the roll gap of the last roll group on the last roll group through a thickness control assembly;
s2, performing S2; hanging the whole roll of the strip on a discharging mechanism, pulling out the strip, sequentially passing through a tension controller and a rolling group, starting all the rolling groups, driving the strip to be conveyed forwards and rolling;
s3, performing S3; the rotating speed of the last rolling group is controlled to be constant, and the fixed running speed is 0-23 m/min;
s4, performing S4; detecting the rotating speed of the last rolling group by using a tension sensor on a tension controller at the front end of the last rolling group, and adjusting the rotating speed of a servo motor on the penultimate rolling group according to the detected rotating speed, wherein the rotating speed of the penultimate rolling group = the rotating speed of the motor of the last rolling group x the gear ratio of the last rolling group;
S5, performing S5; the rotating speed of the rolling group is continuously detected through a tension controller at the front end of the rolling group, so that the strip is always kept in a proper tension state for rolling.
As a further improvement, the steps S3 to S4 further include: and continuously controlling the temperature of the semiconductor refrigerator and keeping the temperature of the refrigerant.
The beneficial effects of the invention are as follows:
In order to conveniently adjust the tension of the strip, firstly, the discharging mechanism is set to be a non-transmission power discharging mechanism, the transmission power of the strip is driven by the rolling group, the tension of the strip is adjusted through the speed change of the rolling group, and then, the tension adjusting mechanism is additionally arranged at the front end of each section of rolling group, the tension controller does not have the effect of adjusting the tension, but can detect the speed of the strip passing through the position, namely the tension of the strip at the position, so that the rotating speed of the rolling group at the front end is adjusted, the strip transmitted by each rolling group can be gradually rolled at the optimal speed and in the optimal tension state, and the rolled strip is uniform and meets the thickness requirement.
The thickness of the strip can be controlled by the rolling groups arranged at different heights, but the thickness of the strip is difficult to control at millimeter level, and the thickness of the strip is difficult to control accurately.
In the invention, a cold pressing mode is adopted, and the existing cold water circulating mode is adopted, the cooled cold water is continuously input into the rolling wheel and then output, the energy consumption is extremely high, and the utilization rate is lower, so the cold water cooling device is characterized in that an inner sleeve is arranged at the inner side of the upper rolling wheel, the space inside the upper rolling wheel is reduced, the injection amount of cold water is reduced, the refrigeration load is reduced, the cold medium in an interlayer can still be in contact with a strip material, the cold rolling effect on the strip material is not affected actually, and a fixed-point heat exchange structure is directly arranged in the upper rolling wheel, so that the fixed-point heat exchange structure can not only cool the cold medium directly, but also can control the low-power output because the amount of the cold medium is less, and the consumed cold amount is extremely small, the consumption of the endless cold amount is reduced, and the power consumption of the whole equipment is reduced when the plate is uniformly cold-rolled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view showing an external structure of a metal strip rolling apparatus according to the present invention.
Fig. 2 is a schematic view showing an internal structure of a metal strip rolling apparatus according to the present invention.
Fig. 3 is a schematic left-hand view of a metal strip rolling apparatus according to the present invention.
Fig. 4 is a schematic perspective view of a roller assembly according to the present invention.
Fig. 5 is a schematic view showing a left-hand structure of a roll stack according to the present invention.
Fig. 6 is a schematic structural diagram of a refrigerant control assembly according to the present invention.
FIG. 7 is a schematic view of an adjusting member and wedge block according to the present invention.
In the figure:
The device comprises a discharging mechanism 1, a rolling group 2, a lower rolling wheel 21, an upper rolling wheel 22, a corner frame 221, a thimble 222, a bearing seat 223, an ultrasonic oscillator 224, a fixed frame 23, a magnetic powder clutch 31, a tension controller 32, an adjusting piece 41, a rotating part 411, a rotating head 412, a matching part 413, a wedge block 42, a limiting frame 43, a locking frame 431, an indicator 4311, a screw 432, a compression rod 433, a refrigerant control component 5, a feeding structure 51, a rotating joint 511, a feeding pipe-5111, a distributing disc 512, an inner sleeve 52, a fixed point heat exchange structure 53, an inner sealing cylinder-531 and a semiconductor refrigerator 532.
Detailed Description
For the purpose of making embodiments of the present invention fall within the scope of the present invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as referring to purposes, technical solutions and advantages of the present invention in any way. All other implementations, which can be derived by a person skilled in the art without making any inventive effort, show or imply relative importance or implicitly indicate the number of technical features indicated on the basis of the implementations in the invention. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 7, a metal strip rolling apparatus, including a discharging mechanism 1 for placing a whole coil of material, the material passes through a plurality of roller assemblies 2 in turn, the roller assemblies 2 include a lower roller 21 and a driven upper roller 22, a plurality of lower roller 21 all drive the gear rotation on the lower roller 21 through the gear on the servo motor, the rolling apparatus still includes: the tension adjusting mechanism comprises a magnetic powder clutch 31 arranged in the discharging mechanism 1, wherein the magnetic powder clutch 31 is used for controlling the discharging tension of the discharging mechanism 1, a tension controller 32 is arranged at the position, close to the feeding direction of the strip, of each rolling group 2, a tension sensor is arranged on the tension controller 32, the tension sensor detects the tension of the input strip and guides the rotating speed data of the rolling group 2 at the rear end into the rolling group 2 at the front end, and the servo motor of the rolling group 2 at the front end is used for speed change adjustment; the thickness control assembly is arranged at the position of the last rolling group 2, the lower rolling wheel 21 and the upper rolling wheel 22 are arranged in a fixed frame 23 with a grooved middle part, an outer mounting seat of the lower rolling wheel 21 is fixedly connected to the lower part of the inner side of the fixed frame 23, an outer mounting seat of the upper rolling wheel 22 is movably arranged at the upper part of the inner side of the fixed frame 23, the thickness control assembly comprises an adjusting piece 41 rotatably arranged on the inner side wall of the fixed frame 23, the tail end of the adjusting piece 41 is connected with a wedge block 42 with an inclined plane, the wedge block 42 is clamped between the lower rolling wheel 21 and the upper rolling wheel 22, the top of the upper rolling wheel 22 is abutted with a limiting frame 43, and when the gap between the upper rolling wheel 22 and the lower rolling wheel 21 needs to be adjusted, the adjusting piece 41 rotates and pushes out or retreats to enable the upper rolling wheel 22 to move upwards or descend; the refrigerant control assembly 5 comprises a feeding structure 51 connected with the upper roller 22 in an axial direction, the upper roller 22 is hollow, the feeding structure 51 is used for introducing refrigerant into the hollow upper roller 22, an inner sleeve 52 is fixed on the feeding structure 51, an interlayer is formed between the inner sleeve 52 and the inner side wall of the upper roller 22, a fixed point heat exchange structure 53 is arranged in the inner sleeve 52, and the fixed point heat exchange structure 53 exchanges heat with the refrigerant in the upper roller 22 and cools the outer wall of the upper roller 22.
Firstly, it should be emphasized that the discharging mechanism 1 is set to be a non-transmission power discharging mechanism, the transmission power of the strip is driven by the rolling groups 2, in order to conveniently adjust the tension of the strip, the tension of the strip is adjusted by the speed change of the rolling groups 2, then, the tension controller 32 is set at the front end of each rolling group 2 through the additionally arranged tension adjusting mechanism, the tension controller 32 does not have the function of adjusting the tension, but can detect the speed of the strip passing through the position, namely the tension of the strip at the position, so as to adjust the rotation speed of the front rolling group 2, so that the strip transmitted by each rolling group 2 can be gradually rolled in an optimal speed and an optimal tension state, the rolled strip is uniform and meets the thickness requirement, preferably, the running speed of the last rolling group 2 is 0-23 m/min, the rotation speed of the last rolling group 2 is actually the first rolling group providing the driving force, the rotation speed of the subsequent rolling group 2 is based on the last rolling group 2, for example, the last rolling group 2 is the last rolling group 2, the rotation speed of the last rolling group is the last rolling group 2, and the tension sensor is used for detecting the rotation speed of the last rolling group is adjusted at the front end of the last rolling group 2, and the last rolling group is used.
The tension controller 32 includes three driven tension rollers, and the three tension rollers are distributed in inverted delta shape, so that the strip can be tensioned by the three tension rollers.
The thickness of the strip can be controlled by the rolling group 2 with different heights, but the thickness is difficult to control in millimeter level, and the thickness of the strip is difficult to accurately control.
In order to avoid that the wedge block 42 driven by the adjusting member 41 moves under the heavy pressure of the upper roller 22, therefore, a threaded hole is formed in the inner side of the fixed frame 23, the adjusting member 41 includes a rotating portion 411 engaged with the threaded hole, a rotating head 412 is connected to the direction of the rotating portion 411 near the outer side of the fixed frame 23, a mating portion 413 is connected to the side of the rotating portion 411 near the inner side of the fixed frame 23, the mating portion 413 is rotatably mounted in the wedge block 42, when the rotating head 412 rotates, the wedge block 42 moves forward or backward, and even if the upper roller 22 rotates and presses, the rotating portion 411 engaged with the threaded hole cannot be pushed outward, so that the adjustment is very accurate.
When adjusting the thickness of the strip, the adjustment is often performed in millimeter level, for example, the original 12mm is adjusted to 11mm, the displacement when being adjusted by the wedge block 42 cannot be too obvious, otherwise, the accurate adjustment is difficult, preferably, the included angle between the inclined plane of the wedge block 42 and the horizontal plane is 1-2 degrees, so that the moving amplitude of the upper roller 22 is smaller in the process of retracting or pushing the wedge block 42, and the accurate adjustment can be performed.
After the upper roller 22 is adjusted, although the lower end of the upper roller 22 is fixed with the lower roller 21, the upper end of the upper roller is still not fixed, the upper roller 22 is easy to push upwards in the stage of passing the strip, therefore, a plurality of vertical thread grooves are formed in the top of the fixed frame 23, the limiting frame 43 comprises a locking frame 431 attached to the top of the fixed frame 23, a plurality of threaded rods 432 matched with the thread grooves are arranged on the locking frame 431, a plurality of pressing rods 433 abutted against mounting seats outside the upper roller 22 are vertically fixedly connected to the bottom of the locking frame 431, after the position of the upper roller 22 is adjusted by the wedge-shaped block 42, the locking frame 431 is locked on the fixed frame 23, the pressing rods 433 are tightly pressed above the upper roller 22, when the position of the upper roller 22 is adjusted, the threaded rods 432 can be screwed out, the connection between the locking frame 431 and the fixed frame 23 is released, the pressing rods 433 are not tightly pressed on the upper roller 22, the upper roller 22 can be pushed up or put down, and after the upper roller 22 is adjusted, the pressing rods 433 are tightly matched with the vertical thread grooves, and the displacement of the upper roller 22 is limited.
The adjustment precision of the upper roller 22 is very high, so in order to make the user can obviously know the distance of adjustment, be provided with an indicator 4311 on the locking frame 431, the top of the outer mounting bracket of upper roller 22 is provided with a corner frame 221, the top welding of corner frame 221 has a thimble 222, when upper roller 22 pushes up under the top of wedge 42, thimble 222 stir the pointer of indicator 4311, and when the user does not rotate once rotating head 412, the pointer of indicator 4311 will change, and the user can clearly learn the distance that oneself adjusted, and can stop the adjustment again when both sides all instruct same scale, lets the levelness of whole upper roller 22 reach the best.
It should be emphasized that the thickness control assembly is only provided in the last set of upper roller wheels 22, and that no provision is required on the other upper roller wheels 22, only that the thickness of the last set is required to be ensured.
In this embodiment, a cold pressing mode is adopted, but existing cold water circulating modes are adopted, cooled cold water is continuously input into the rolling wheel and then output, so that energy consumption is extremely high, and utilization rate is low.
The space ratio of the inner sleeve 52 and the fixed point heat exchange structure 53 can reduce the amount of refrigerant rushing in, thereby reducing the cold energy used by the refrigerant refrigeration and saving more energy.
As can be seen from the figure, one end of the power of the upper roller 22 is located at the left side of the upper roller 22, while the other side of the upper roller 22 is the refrigerant inlet position, in order to realize the input and synchronous rotation of the refrigerant, the feeding structure 51 includes a rotary joint 511 axially matched with the upper roller 22, the outer side of the rotary joint 511 is connected with the feeding end of the refrigerant, the inner side of the rotary joint 511 is provided with a distributing disc 512 leading into the upper roller 22, the distributing disc 512 is provided with an electromagnetic valve, the electromagnetic valve is used for switching the refrigerant into the interlayer, so that the refrigerant can enter the upper roller 22 through the rotary joint 511 in rotation, thereby not only completing the introduction of the refrigerant, but also not obstructing the rotation of the upper roller 22, and the entering refrigerant is uniformly introduced into the interlayer in the upper roller 22 through the distributing disc 512.
Although the heating uniformity and the power consumption can be improved and reduced by heating the fixed-point heat exchange structure 53, if the extended fixed-point heat exchange structure 53 has no carrier, the extended fixed-point heat exchange structure 53 is easy to break and crack due to single-end bearing, therefore, a supporting seat 223 is arranged at one side of the inner part of the upper rolling wheel 22, which is far away from the rotary joint 511, and the supporting seat 223 is attached to the tail end of the fixed-point heat exchange structure 53, so that the fixed-point heat exchange structure 53 can support, in the heat exchange process of the refrigerant, if the refrigerant is kept still, the heat exchange effect is poor, preferably, an ultrasonic oscillator 224 is arranged at the outer side of the supporting seat 223, the refrigerant heated by the outer ring and the refrigerant cooled by the inner ring can be exchanged by utilizing the ultrasonic oscillator 224, the heat exchange efficiency of the heat exchange is improved, and a temperature sensor can be arranged on the supporting seat 223 for detecting the temperature change of the refrigerant, so that the temperature change of the refrigerant is better.
In this embodiment, the fixed-point heat exchange structure 53 includes an inner sealed cylinder 531, a plurality of semiconductor refrigerators 532 are disposed on the inner side of the inner sealed cylinder 531, and the cooling fins of the semiconductor refrigerators 532 are tightly attached to the inner side wall of the inner sealed cylinder 531, where the heating interval of the semiconductor refrigerators 532 may be 20 ℃ to-10 ℃, and may be adjusted according to the requirement, and the power supply of the semiconductor refrigerators 532 needs to be led to the outside, and then a feeding pipe 5111 is disposed at the feeding position of the rotary joint 511, so that the wires of the semiconductor refrigerators 532 extend to the outside of the apparatus through the feeding pipe 5111.
In another embodiment of the present invention, a method for controlling a metal strip rolling apparatus is provided, and the method for controlling a metal strip rolling apparatus includes the following steps:
s1, performing S1; presetting the height of each roll group 2 according to the required thickness of the strip, and adjusting the roll gap of the last roll group 2 on the last roll group 2 through a thickness control assembly;
S2, performing S2; hanging the whole roll of the strip on a discharging mechanism 1, pulling out the strip and sequentially passing through a tension controller 32 and the roller groups 2, starting all the roller groups 2, driving the strip to be conveyed forwards and rolling;
S3, performing S3; the rotating speed of the last group of roller press groups 2 is controlled to be constant, and the fixed running speed is 0-23 m/min;
S4, performing S4; detecting the rotation speed of the last roller group 2 by using a tension sensor on a tension controller 32 at the front end of the last roller group 2, and adjusting the rotation speed of a servo motor on the penultimate roller group 2 according to the detected rotation speed, wherein the rotation speed of the penultimate roller group 2 = the motor rotation speed of the last roller group 2 x the gear ratio of the last roller group 2;
S4, performing S4; the rotation speed of the roller group 2 is continuously detected by the tension controller 32 at the front end of the roller group 2, so that the strip is always kept in a state of proper tension for rolling.
Further, the steps S3 to S4 further include: the temperature of the semiconductor refrigerator 532 is continuously controlled, and the temperature of the refrigerant is maintained.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a metal strip rolling equipment, includes a blowing mechanism (1) that is used for placing whole coil of strip material, the material loops through a plurality of roll-in groups (2), roll-in group (2) contain roll-in wheel (21) and driven last roll-in wheel (22) down, a plurality of roll-in wheel (21) all drive the gear rotation on roll-in wheel (21) down through the gear on the servo motor, its characterized in that, rolling equipment still includes:
The tension adjusting mechanism comprises a magnetic powder clutch (31) arranged in the discharging mechanism (1), wherein the magnetic powder clutch (31) is used for controlling discharging tension of the discharging mechanism (1), a tension controller (32) is arranged at the position, close to the feeding direction of the strip, of each rolling group (2), a tension sensor is arranged on the tension controller (32), the tension sensor detects tension of the input strip and guides rotating speed data of the rolling group (2) at the rear end into the rolling group (2) at the front end, and a servo motor of the rolling group (2) at the front end is subjected to variable speed adjustment;
The thickness control assembly is arranged at the position of the last rolling group (2), the lower rolling wheel (21) and the upper rolling wheel (22) are arranged in a fixed frame (23) with a grooved middle part, an outer mounting seat of the lower rolling wheel (21) is fixedly connected to the lower part of the inner side of the fixed frame (23), an outer mounting seat of the upper rolling wheel (22) is movably arranged at the upper part of the inner side of the fixed frame (23), the thickness control assembly comprises an adjusting piece (41) rotatably arranged on the inner side wall of the fixed frame (23), the tail end of the adjusting piece (41) is connected with a wedge block (42) with an inclined surface, the wedge block (42) is clamped between the lower rolling wheel (21) and the upper rolling wheel (22), a limiting frame (43) is abutted to the top of the upper rolling wheel (22), and when the gap between the upper rolling wheel (22) and the lower rolling wheel (21) needs to be adjusted, the adjusting piece (41) rotates and pushes the wedge block (42) out or retreats, and the upper rolling wheel (22) moves down or moves down;
The refrigerant control assembly (5) comprises a feeding structure (51) connected with the upper roller wheel (22) in the axial direction, the upper roller wheel (22) is arranged in a hollow manner, the feeding structure (51) is used for introducing a refrigerant into the hollow upper roller wheel (22), an inner sleeve (52) is fixed on the feeding structure (51), an interlayer is formed between the inner sleeve (52) and the inner side wall of the upper roller wheel (22), a fixed-point heat exchange structure (53) is arranged in the inner sleeve (52), and the fixed-point heat exchange structure (53) exchanges heat with the refrigerant in the upper roller wheel (22) and cools the outer wall of the upper roller wheel (22);
The feeding structure (51) comprises a rotary joint (511) axially matched with the upper rolling wheel (22), the outer side of the rotary joint (511) is connected with the feeding end of the refrigerant, a material distributing disc (512) leading to the inside of the upper rolling wheel (22) is arranged on the inner side of the rotary joint (511), and an electromagnetic valve is arranged on the material distributing disc (512) and used for switching the refrigerant into the interlayer;
A bearing seat (223) is arranged at one side of the upper rolling wheel (22) away from the rotary joint (511), the bearing seat (223) is attached to the tail end of the fixed-point heat exchange structure (53), and an ultrasonic oscillator (224) is arranged at the outer side of the bearing seat (223);
The feeding position of the rotary joint (511) is provided with a feeding pipe (5111), the fixed-point heat exchange structure (53) comprises an inner sealing cylinder (531), a plurality of semiconductor refrigerators (532) are arranged on the inner side of the inner sealing cylinder (531), refrigerating sheets of the semiconductor refrigerators (532) are tightly attached to the inner side wall of the inner sealing cylinder (531), and wires of the semiconductor refrigerators (532) extend to the outside of the equipment through the feeding pipe (5111).
2. A metal strip rolling apparatus as claimed in claim 1, wherein the inner side of the fixed frame (23) is provided with a threaded hole, the adjusting member (41) comprises a rotating portion (411) engaged with the threaded hole, a rotating head (412) is connected to the rotating portion (411) in a direction close to the outer side of the fixed frame (23), a fitting portion (413) is connected to the rotating portion (411) in a direction close to the inner side of the fixed frame (23), the fitting portion (413) is rotatably mounted in the wedge block (42), and when the rotating head (412) rotates, the wedge block (42) moves forward or backward.
3. A metal strip rolling installation as claimed in claim 2, wherein the angle between the inclined surface of the wedge block (42) and the horizontal plane is 1-2 °.
4. The metal strip rolling equipment according to claim 1, wherein a plurality of vertical thread grooves are formed in the top of the fixed frame (23), the limiting frame (43) comprises a locking frame (431) attached to the top of the fixed frame (23), a plurality of screws (432) matched with the thread grooves are arranged on the locking frame (431), a plurality of pressing rods (433) abutted to mounting seats outside the upper roller wheel (22) are vertically fixedly connected to the bottom of the locking frame (431), and after the position of the upper roller wheel (22) is adjusted by the wedge-shaped block (42), the locking frame (431) is locked on the fixed frame (23) and the pressing rods (433) are tightly pressed above the upper roller wheel (22).
5. The metal strip rolling apparatus as claimed in claim 4, wherein an indicator (4311) is provided on the locking frame (431), a corner frame (221) is provided on the top of the outer mounting frame of the upper rolling wheel (22), a thimble (222) is welded on the top of the corner frame (221), and the thimble (222) toggles the pointer of the indicator (4311) when the upper rolling wheel (22) moves up under the top of the wedge block (42).
6. A method of controlling a metal strip rolling apparatus, using a metal strip rolling apparatus as claimed in any one of claims 1 to 5, comprising the steps of:
s1, performing S1; presetting the height of each roll group (2) according to the required thickness of the strip, and adjusting the roll gap of the last roll group (2) on the last roll group (2) through a thickness control assembly;
S2, performing S2; hanging the whole roll of the strip on a discharging mechanism (1), pulling out the strip, sequentially passing through a tension controller (32) and a rolling group (2), starting all the rolling groups (2), driving the strip to be conveyed forwards and rolling;
S3, performing S3; the rotating speed of the last group of roller press groups (2) is controlled to be constant, and the fixed running speed is 0-23 m/min;
S4, performing S4; detecting the rotation speed of the last rolling group (2) by using a tension sensor on a tension controller (32) at the front end of the last rolling group (2), and adjusting the rotation speed of a servo motor on the penultimate rolling group (2) according to the detected rotation speed, wherein the rotation speed of the penultimate rolling group (2) is equal to the motor rotation speed of the last rolling group (2) multiplied by the gear ratio of the last rolling group (2);
S5, performing S5; the rotation speed of the rolling group (2) is continuously detected by a tension controller (32) at the front end of the rolling group (2), so that the strip is always kept in a proper tension state for rolling.
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| CN202410167265.4A CN117696623B (en) | 2024-02-06 | 2024-02-06 | Metal strip rolling equipment and control method thereof |
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| CN202410167265.4A CN117696623B (en) | 2024-02-06 | 2024-02-06 | Metal strip rolling equipment and control method thereof |
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| CN117900261A (en) * | 2024-03-20 | 2024-04-19 | 紫金矿业集团黄金冶炼有限公司 | Tablet press for preparing target material and preparation method of high-purity gold target material by using tablet press |
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