CN205844865U - A kind of for the plate gap of metal plate hot coating production line elimination control system - Google Patents
A kind of for the plate gap of metal plate hot coating production line elimination control system Download PDFInfo
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- CN205844865U CN205844865U CN201620565351.1U CN201620565351U CN205844865U CN 205844865 U CN205844865 U CN 205844865U CN 201620565351 U CN201620565351 U CN 201620565351U CN 205844865 U CN205844865 U CN 205844865U
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/40—Minimising material used in manufacturing processes
Abstract
The utility model discloses a kind of for the plate gap of metal plate hot coating production line elimination control system, it includes host computer man-machine interaction touch screen, slave computer multi-axis motion controller, feeding section master control system, sensing bringing-up section drive system, combustion abatement section drive system, upper overlay film roller drive system, front pinch roll drive system, the lamina membranacea section of saying good-bye drive system, lower overlay film roller drive system and rear pinch roll drive system.It is end to end that plate gap of the present utility model elimination control system utilizes servo-controlled electrical technology to achieve adjacent two plates, the gap between adjacent two plates is eliminated before entering coating processes, the most do not waste membrane material, save membrane material, reduce production cost, and design difficulty is little, it is easier to realize.
Description
Technical field
This utility model belongs to the hot film coating technique of the metal plate in packages printing industry field, relates to a kind of for metal
The plate gap of the hot coating production line of flat board eliminates control system.
Background technology
The hot film coating technique of metal plate is a kind of rise in the materials processing technology of Japan, utilizes this technology can be at metal
Surface laminating one layer of environmental protection, corrosion resistant high polymer material, and this laminating thing do not fall off, non-foaming, it is possible to meet take up
The safety and health request of food, can substitute traditional metal spraying technique comprehensively.
Owing to feeding system feeding is spaced, between plate exists between each plate when entering into coating technique section relatively greatly
Gap, after panel surface has covered film, gap yet suffers from, and thus causes between substantial amounts of film is wasted between two plates
Gap section, owing to unit is to run continuously, institute's overlay film is macromolecular material, expensive, therefore long term accumulation, waste of raw materials is tight
Weight, causes overlay film high expensive.
At present, the hot coating production line of metal plate does not use gap technology for eliminating, but after plate overlay film completes, profit
Pullling mechanism by unnecessary membrane material from slab edge income rewinding volume with a kind of traction, the difficult point of this technology is that traction is drawn
Pull the Machine Design of mechanism to must be prevented from the plate just having covered film and pullled mechanism by traction and pull away in the lump, and Shortcomings point:
Complicated in mechanical structure, design difficulty is big, and the utilization rate of film is relatively low.
Utility model content
The purpose of this utility model is to provide a kind of elimination for the plate gap of the hot coating production line of metal plate and controls
System, the gap between this plate gap elimination control system is readily susceptible to adjacent two boards material enters coating technique section at plate
Eliminate before, thus realize between plate the most end to end, save covering material, and save and need to cut after overlay film completes
Except the work of the unnecessary membrane material of slab edge, to reduce the effect of overlay film cost.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of metal plate heat that is used for is covered
The plate gap of film production line eliminates control system, including host computer man-machine interaction touch screen, slave computer multi-axis motion controller,
Feeding section master control system, sensing bringing-up section drive system, combustion abatement section drive system, upper overlay film roller drive system, front pinch
Roller drive system, the lamina membranacea section of saying good-bye drive system, lower overlay film roller drive system and rear pinch roll drive system, described host computer people
Machine interactive touch screen is connected with described slave computer multi-axis motion controller, and described slave computer multi-axis motion controller is respectively with described
Feeding end section master control system connects and sensing bringing-up section drive system connects, described sensing bringing-up section drive system, combustion abatement
Section drive system, upper overlay film roller drive system, front pinch roll drive system, the lamina membranacea section of saying good-bye drive system, lower overlay film roller drive
System and rear pinch roll drive system are connected with each other successively.
Further, described slave computer multi-axis motion controller is by ECT bus and described sensing bringing-up section drive system
Connecting, described sensing bringing-up section drive system, combustion abatement section drive system, upper overlay film roller drive system, front pinch roll drive
System, the lamina membranacea section of saying good-bye drive system, lower overlay film roller drive system and rear pinch roll drive system pass sequentially through the series connection of ECT bus
Together.
Further, described front pinch roll drive system includes pinch roll driver, front pinches roller motor encoder, fore-clamp
Roller motor and front pinch roll, described feeding section master control system is sent to include conveyer belt motor encoder, conveyer belt motor and conveyer belt,
The quantity of described pinch roll driver is two, and the two pinch roll driver is connected with each other by ECT, described slave computer multiaxis
Motion controller is connected with pinch roll driver one of them described by ECT bus, and this pinch roll driver is respectively with described
Conveyer belt motor encoder and described conveyer belt motor connect, and described conveyer belt motor encoder is with described conveyer belt motor even
Connecing, this conveyer belt motor drives described conveyer belt to rotate, thus realizes carrying plate, and another described pinch roll driver is respectively
With described before pinch roller motor encoder and before pinch roller motor and be connected, described before pinch roller motor and drive described front pinch roll to turn
Dynamic, described slave computer multi-axis motion controller is also attached to laser range sensor, and this laser range sensor is used for measuring institute
State the distance between adjacent two boards material on conveyer belt.
Further, the front roller motor that pinches is servomotor, and conveyer belt motor is frequency control motor.
This utility model beneficial effect: plate gap of the present utility model eliminates control system, utilizes laser ranging to sense
Device and conveyer belt encoder realize the mensuration of the clearance distance between adjacent two plates, utilize slave computer Multi-axis motion control
Device completes gap segmentation calculating, two-part gap eliminates and the function of imaginary axis speed superposition, and then it is complete to control front pinch roll
Become to pinch action, thus it is end to end to realize adjacent two plates, between eliminating between adjacent two plates before entering coating processes
Gap, does not the most waste membrane material, has saved membrane material, saves the work of the excision unnecessary membrane material of slab edge, reduces life
Producing cost, and be not required to the frame for movement that design is complicated, design difficulty is little, it is easier to realize.
Accompanying drawing explanation
Fig. 1 is that the plate gap of this utility model embodiment eliminates control system schematic diagram.
Fig. 2 is the schematic diagram that plate gap eliminates.
Fig. 3 is the time location beat figure that plate gap eliminates.
Description of reference numerals:
Host computer man-machine interaction touch screen 11, slave computer multi-axis motion controller 12, sensing bringing-up section drive system 13, combustion
Burn off dirt section drive system 14, upper overlay film roller drive system 15, front pinch roll drive system 16, the lamina membranacea section of saying good-bye drive system
17, lower overlay film roller drive system 18, rear pinch roll drive system 19, feeding section master control system 20；
Pinch roll driver 21, front pinch roller motor encoder 22, front pinch roller motor 23, front pinch roll 24, conveyer belt
Motor encoder 25, conveyer belt motor 26, laser range sensor 27.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical scheme in this utility model embodiment is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments wholely.
Based on the embodiment in this utility model, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of this utility model protection.
The hot coating production line of metal plate is generally divided into seven active sections, is divided into according to the sequencing produced:
Feeding section: by feeder the plate on stacking picked up a sheet by a sheet and be positioned on conveyer belt；
Combustion abatement section: the flame generated with Flame of Natural Gas rifle bakes the surface of bright plate, reaches to remove dirt and raising
The purpose of plate initial temperature；
Sensing bringing-up section: utilize high-frequency induction heating apparatus that the temperature of plate is risen to 220 degrees centigrade to reach
The technological temperature of overlay film；
Coating technique section: put the two-way pressure film hot pressing by materials such as PET utilizing cylinder after wound membrane is released by film machine
To sheet material upper and lower surface；
The lamina membranacea section of saying good-bye: after utilization, the speed difference of pinch roll and conveyer belt causes the speed difference between film and plate, thus
Realize lamina membranacea to separate；
Cooling body section: the fan group being made up of strong wind machine, forces the plate after quenching overlay film so that it is lower the temperature and allow
Film and plate are fused together；
Double rewinding sections: realize the stacking of a sheet by a sheet plate.
As it is shown in figure 1, the present embodiment eliminate control system for the plate gap of the hot coating production line of metal plate
Schematic diagram.This plate gap eliminates control system and includes host computer man-machine interaction touch screen 11, slave computer multi-axis motion controller
12, feeding section master control system 20, sensing bringing-up section drive system 13, combustion abatement section drive system 14, upper overlay film roller drivetrain
System 15, front pinch roll drive system 16, the lamina membranacea section of saying good-bye drive system 17, lower overlay film roller drive system 18 and rear pinch roll drive
System 19.Host computer man-machine interaction touch screen 11 is connected with slave computer multi-axis motion controller 12.Slave computer Multi-axis motion control
Device 12 is connected with sensing bringing-up section drive system 13 by ECT bus, and sensing bringing-up section drive system 13, combustion abatement section drive
System 14, upper overlay film roller drive system 15, front pinch roll drive system 16, the lamina membranacea section of saying good-bye drive system 17, lower overlay film roller drive
Dynamic system 18 and rear pinch roll drive system 19 pass sequentially through ECT bus and are cascaded.
Plate gap eliminates the feature of control system and is:
1, have employed slave computer multi-axis motion controller 12 at a high speed to be controlled, slave computer multi-axis motion controller 12 is real
Shi Xingqiang, can complete the switching of the order between motion planning and movement logical module, realize multi-axis interpolation motion etc., simultaneously
Slave computer multi-axis motion controller 12 uses ECT bus (EtherCAT (Ethernet auto-control technology) with each drive system
Control bus) carry out communication, the topological structure connected by single line level replaces traditional star connection or total and fractional connection, then adds
The utilization of upper distributed clock so that communication time reduces, it is ensured that the Fast synchronization of action executing；
2, host computer human-computer interaction interface 11 uses and can carry out the Taiwan prestige synthetic fibre of ethernet communication and lead to touch screen, in real time with under
Position machine multi-axis motion controller 12 carries out data exchange, it is possible to achieve state shows, parameter gives and the function of log recording；
3, in all driving equipment, the most forward and backward pinch roll motor uses position control mode, and remaining driving equipment all uses
Speed control mode.Sensing heating, combustion abatement, upper and lower overlay film roller, the driving motor of the lamina membranacea section of saying good-bye are common variable-frequency electric
Machine, it is only necessary to complete to transmit smoothly the function of plate, therefore use the relatively easy speed control mode of control mode.Pinch before and
Before roller motor drives, pinch roll completes more accurate gap elimination function, and i.e. periodically quickly acceleration and deceleration process, then presss from both sides
After sending roller motor to drive, pinch roll completes lamina membranacea and says good-bye function, owing to motion mode is different from control accuracy, therefore forward and backward before
Pinch roll motor uses the mode of position control.
With reference to Fig. 2, the schematic diagram that plate gap eliminates.Front pinch roll drive system includes pinch roll driver 21, fore-clamp
Send roller motor encoder 22, front pinch roller motor 23 and front pinch roll 24, the most before pinch roller motor 23 and be designed as servomotor.
Feeding section master control system 20 includes conveyer belt motor encoder 25, conveyer belt motor 26 and conveyer belt, wherein conveyer belt motor 26
It is designed as frequency control motor.The quantity of pinch roll driver 21 is two, and the two pinch roll driver 21 is mutual by ECT
Connecting, slave computer multi-axis motion controller 12 is connected with one of them pinch roll driver 21 by ECT bus, and this pinch roll drives
Dynamic device 21 is connected with conveyer belt motor encoder 25 and conveyer belt motor 26 respectively, and conveyer belt motor encoder 25 is charged with transmission
Machine 26 connects, and this conveyer belt motor 26 drives described conveyer belt to rotate, thus realizes carrying plate, and during work, conveyer belt motor is compiled
Code device 25 feeds back the rate signal of conveyer belt motor 26 to pinch roll driver 21.Another pinch roll driver 21 is respectively with front
Pinch roll motor encoder 22 and before pinch roller motor 23 and connect, the front roller motor 23 that pinches drives front pinch roll 24 to rotate, it is achieved
Pinch plate, during work before pinch roller motor encoder 22 to pinch roll driver 21 feed back before pinch roller motor 23 position letter
Number.Slave computer multi-axis motion controller 12 is also attached to laser range sensor 27, and this laser range sensor 27 is used for measuring
Clearance distance between adjacent two boards material, feeds back to slave computer multi-axis motion controller 12 by clearance checking signal.
The schematic diagram that plate gap eliminates gives between testing agency, core controller and final actuator three
Relation, wherein, front pinch roller motor encoder 22, conveyer belt motor encoder 25 and laser range sensor 27 all be detection
Mechanism, laser range sensor 27 can provide cue, this cue when the head-tail of plate arrives at below laser
When reaching slave computer multi-axis motion controller 12, conveyer belt when slave computer multi-axis motion controller 12 gathers the generation of this moment simultaneously
The position of encoder 25, so, is pointed out slave computer multi-axis motion controller 12 to gather adjacent two boards material by laser sensor 27
Previous plate end moment and the position of a rear plate wrench moment conveyer belt encoder 25, respectively S1 and S2,
I.e. can be calculated gap delta S between adjacent two boards material by S2-S1.
This gap, after gap delta S calculated between plate, can be divided into two portions by slave computer multi-axis motion controller 12
Divide and pass to front pinch roll to complete the action that gap eliminates.Particularly, the process that gap delta S is eliminated is as follows:
δ S splits into two part δ S=δ S1+ δ S2, and wherein the elimination of δ S1 can make front pinch roll 24 obtain one to add
Speed process, allows its speed be increased to the several times of line speed, and this process can regard as front pinch roll 24 and clamp plate and go to chase after
Catch up with previous plate, thus eliminate portion gap δ S1；
After δ S1 is eliminated, slave computer multi-axis motion controller 12 can provide the elimination order of δ S2, i.e. makes fore-clamp send
Roller 24 obtains a moderating process, allows its speed be eventually reduced to consistent with overlay film roller speed, it is achieved and overlay film roller speed sync.
Needing exist for proposing, plate transfer rate on a moving belt is greater than the transfer rate after entering overlay film roller, and this is
Because the quantitative plate that feeder is sent within the unit interval can all be put away by collecting machine, exist between the plate on conveyer belt
Gap and join end to end between plate after entering overlay film roller, therefore δ S2 is while being eliminated, and also completes panel material and overlay film roller
The process of speed sync, to prevent due to " re-pack " phenomenon of causing inconsistent with overlay film roller speed after plate entrance overlay film roller.
Slave computer multi-axis motion controller 12 is when completing δ S1 and δ S2 and eliminating, and final actuator is front pinch roll
24, provide a concept the most again, the speed of i.e. front pinch roll 24 is dimeric: basal rate+stack velocity.?
When plate does not enters into front pinch roll 24, front pinch roll 24 only has the speed of a basal rate, this speed and front conveyer belt
Keeping consistent, before plate enters after pinch roll 24, front pinch roll 24 starts gap elimination action immediately, obtains a superposition speed
Degree, the additional velocities produced during the acceleration and deceleration mentioned in the most first 2 of this stack velocity.
But the two additional velocities is not directly to the operation of front pinch roll 24, but by slave computer Multi-axis motion control
Device 12 has been internally generated an imaginary axis, imaginary axis go to undertake stack velocity, then pinches before the motion of imaginary axis being superimposed to
Roller 24, thus realize acceleration and deceleration, this have the advantage that: reduce the complexity of movement code, due to detect every time
Gap is different, causes stack velocity to be not quite similar, it is to avoid give different movement velocitys repeatedly to front pinch roll 24, only needs to use
Imaginary axis undertakes stack velocity, and the basal rate of front pinch roll 24 can keep constant.
Beat is eliminated with reference to three plates of Fig. 3, T0 moment to T6 moment (No. 1 plate, No. 2 plates and No. 3 plates) gap
Cycle schematic diagram.Wherein, the lateral dimension of plate is 1100mm, every plate on a moving belt be spaced apart preferable 200mm,
After the gap elimination action of front pinch roll 24, the gap between plate shortens to 1mm, thus within the feeder unit interval
In the case of feeding is consistent, the transfer rate of conveyer belt can be set to 1100+200=1300mm/s, enters overlay film roller after pinching
Feeding transfer rate is 1100+1=1101mm/s.When after the wrench every piece of plate being detected, 200mm starts front pinch roll 24 and enters
Row pinches, i.e. acceleration and deceleration process.
From the oblique line portion in T1 moment, No. 1 plate has the stroke of 500mm length by front pinch roll during acceleration and deceleration
24 " eating up ", i.e. in the stroke of this 500mm, No. 1 plate in addition to having original basal rate 1300mm/s, also superposition
Speed, to complete the process of pursuit, causes the gap between No. 1 plate and No. 2 plates to become big on the contrary.From T2 to the T3 moment,
Pinching owing to No. 1 plate is complete, speed is reduced to 1101mm/s from 1300mm/s, and No. 2 plate speed and conveyer belt
Speed unanimously remains 1300mm/s, therefore the gap between 1, No. 2 plates the most progressively reduces, from T2 to T3 moment, 1, No. 2 plates
Between gap be reduced to 280.8mm from 440mm.During T3 to the T4 moment, owing to No. 2 plates are with average speed of advancing
Degree acceleration and deceleration process No. 1 plate of pursuit more than 1101mm/s, terminates to pinch process at No. 2 plates of T4 moment, pursues No. 1 plate
Until the gap between two boards material shortens to 1mm.T0 to the T4 moment i.e. gives every plate and carries out the complete of gap elimination
Process, every plate below repeats above-mentioned gap and eliminates process.
In practical work process, owing to the gap between every sheet material is not the 200mm of standard, the speed of conveyer belt
It is not given 1300mm/s, but the measurement in gap can be given slave computer multiaxial motion control by laser range sensor yet
Device processed thus adjust the length of T0 to T4 each time period and after overlay film roller, realizing head and the tail phase to be finally reached every piece of plate
Purpose even.
To sum up, plate gap of the present utility model eliminates control system, and it utilizes laser range sensor and conveyer belt
Encoder realizes the mensuration of the clearance distance between adjacent two plates, and laser range sensor also completes to point out wrench to reach simultaneously
Arriving of task；Utilize slave computer multi-axis motion controller to complete gap segmentation calculating, two-part gap eliminates and imaginary axis speed
Degree overlaying function；The driving of conveyer belt uses the frequency control motor under speed control mode, and the driving of front pinch roll uses position
Put the servomotor under control model, effectively reduce control difficulty, add control accuracy and reasonably save hardware
Spending (belt-driven need not use driven by servomotor).Therefore, plate gap of the present utility model eliminates control system profit
Adjacent two plates are achieved end to end, it is achieved that the gap between adjacent two plates eliminates with servo-controlled electrical technology,
Do not waste membrane material, accomplish that the utilization rate of film, more than 95%, is said from economy point, saved membrane material, save excision plate
The work of the unnecessary membrane material in material edge, reduces production cost, and compared with prior art, design difficulty is little, it is easier to real
Existing.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (4)
1. the plate gap for the hot coating production line of metal plate eliminates control system, it is characterised in that include upper
Machine man-machine interaction touch screen (11), slave computer multi-axis motion controller (12), feeding section master control system (20), sensing bringing-up section are driven
Dynamic system (13), combustion abatement section drive system (14), upper overlay film roller drive system (15), front pinch roll drive system (16),
The lamina membranacea section of saying good-bye drive system (17), lower overlay film roller drive system (18) and rear pinch roll drive system (19), described host computer
Man-machine interaction touch screen (11) is connected with described slave computer multi-axis motion controller (12), described slave computer multi-axis motion controller
(12) being connected with described feeding section master control system respectively and sense bringing-up section drive system (13) connection, described sensing bringing-up section is driven
Dynamic system (13), combustion abatement section drive system (14), upper overlay film roller drive system (15), front pinch roll drive system (16),
The lamina membranacea section of saying good-bye drive system (17), lower overlay film roller drive system (18) interconnect mutually with rear pinch roll drive system (19)
Connect.
It is the most according to claim 1 a kind of for the plate gap of metal plate hot coating production line elimination control system,
It is characterized in that, described slave computer multi-axis motion controller (12) is by ECT bus and described sensing bringing-up section drive system
(13) connect, described sensing bringing-up section drive system (13), combustion abatement section drive system (14), upper overlay film roller drive system
(15), front pinch roll drive system (16), the lamina membranacea section of saying good-bye drive system (17), lower overlay film roller drive system (18) and after pinch
Roller drive system (19) passes sequentially through ECT bus and is cascaded.
It is the most according to claim 1 a kind of for the plate gap of metal plate hot coating production line elimination control system,
It is characterized in that, described front pinch roll drive system includes pinch roll driver (21), the front roller motor encoder (22), front of pinching
Pinch roll motor (23) and front pinch roll (24), described feeding section master control system (20) include conveyer belt motor encoder (25),
Conveyer belt motor (26) and conveyer belt, the quantity of described pinch roll driver (21) is two, the two pinch roll driver
(21) being connected with each other by ECT, described slave computer multi-axis motion controller (12) is pinched with described in one of them by ECT bus
Roller driver (21) connect, this pinch roll driver (21) respectively with described conveyer belt motor encoder (25) and described conveyer belt
Motor (26) connects, and described conveyer belt motor encoder (25) is connected with described conveyer belt motor (26), this conveyer belt motor
(26) driving described conveyer belt to rotate, thus realize carrying plate, another described pinch roll driver (21) is respectively with described
Before pinch roller motor encoder (22) and before pinch roller motor (23) and connect, described before pinch roller motor (23) and drive described fore-clamp
Sending roller (24) to rotate, described slave computer multi-axis motion controller (12) is also attached to laser range sensor (27), this Laser Measuring
Away from sensor (27) for measuring on described conveyer belt the distance between adjacent two boards material.
It is the most according to claim 3 a kind of for the plate gap of metal plate hot coating production line elimination control system,
It is characterized in that, the front roller motor (23) that pinches is servomotor, and conveyer belt motor (26) is frequency control motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565351.1U CN205844865U (en) | 2016-06-12 | 2016-06-12 | A kind of for the plate gap of metal plate hot coating production line elimination control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620565351.1U CN205844865U (en) | 2016-06-12 | 2016-06-12 | A kind of for the plate gap of metal plate hot coating production line elimination control system |
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| CN205844865U true CN205844865U (en) | 2016-12-28 |
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| CN201620565351.1U Active CN205844865U (en) | 2016-06-12 | 2016-06-12 | A kind of for the plate gap of metal plate hot coating production line elimination control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892407A (en) * | 2016-06-12 | 2016-08-24 | 佛山市中菱智控科技有限公司 | Sheet metal clearance eliminating control system for metal plate hot laminated film production line |
-
2016
- 2016-06-12 CN CN201620565351.1U patent/CN205844865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892407A (en) * | 2016-06-12 | 2016-08-24 | 佛山市中菱智控科技有限公司 | Sheet metal clearance eliminating control system for metal plate hot laminated film production line |
| CN105892407B (en) * | 2016-06-12 | 2018-08-31 | 佛山市中菱智控科技有限公司 | Eliminate control system in a kind of plate gap for the hot coating production line of metal plate |
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