CN103394441A - Roll gap regulating system and control flow - Google Patents
Roll gap regulating system and control flow Download PDFInfo
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- CN103394441A CN103394441A CN2013103266784A CN201310326678A CN103394441A CN 103394441 A CN103394441 A CN 103394441A CN 2013103266784 A CN2013103266784 A CN 2013103266784A CN 201310326678 A CN201310326678 A CN 201310326678A CN 103394441 A CN103394441 A CN 103394441A
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Abstract
The invention relates to the field of a compound coating machine, aiming at providing a roll gap regulating system. The system uses an air cylinder as one of power sources for controlling a transferring roll to move in a linear guide rail, a linear stepping motor is used as another power source for controlling the transferring roll moving in the linear guide rail and applies thrust to the transferring roll through a screw rod and a micro-space sliding block, and the two power sources act together to ensure the reliable controlled sliding of the transferring roll on the linear guide rail. A control system controls the linear stepping motor and the air cylinder to control the movement of the transferring roll according to a gap set value, a gap detection device detects a gap value in real time and feeds the value back to the control system so as to ensure the accuracy of automatic regulation. In view of the accuracy requirement of the roll gap, the linear stepping motor converts a rotational motion into a linear motion through the screw rod, and the component on the linear guide rail direction of the sliding displacement of the micro-space sliding block on the wedge-shaped surface of a mounting base is the moving displacement of the transferring roll relative to a metering roll, so that the high-accuracy micro-gap movement is achieved.
Description
Technical field
The present invention relates to the coating complex machine field, refer to especially a kind of clearance between roll regulating system and control flow.
Background technology
It is rear compound that the complex method of domestic extensive employing at present mostly is first coating, and be coated with more common, be the coating of roller rotary type, be namely to leave gap between metering roll and transferring roller, be marked with coating fluid above gap, and transferring roller rotates, and sends away coating fluid.Clearance between roll value herein is very important, and it directly has influence on the thickness of coating, and general gap width is 7～12.Existing adjusting gap adopts clearance gauge to measure, the mode that the artificial hand wheel is regulated.The adjusting difficulty of this mode is very big, and individual differenceization is larger; And between gap, the adjustable distance scope is little, is not easy to cleaning.
Summary of the invention
The present invention proposes a kind of clearance between roll regulating system and control flow, has solved the low problem of prior art intermediate gap accommodation accuracy.
technical scheme of the present invention is achieved in that a kind of clearance between roll regulating system, comprise fixing metering roll and with described metering roll, form the transferring roller of coating clearance, described transferring roller is arranged on fixed frame by mount pad, be provided with line slideway between described mount pad and fixed frame, slide block and cylinder, described cylinder is controlled mount pad and is slided on line slideway, it also comprises gap detection device, described mount pad is provided with lozenges, laminating is moved on described wedge face the microspur slide block, described microspur slide block is connected with the microspur guide rail, the relative fixed frame of this microspur guide rail is fixed, described microspur slide block is connected with screw mandrel, described screw mandrel is connected with linear stepping motor by draft gage, described linear stepping motor is connected with control system, described control system and gap detection device communication connection.
In the technical program, cylinder is the dynamic origin that the controls metastasis roller moves at line slideway, and the another power source that linear stepping motor moves at line slideway as transferring roller, it passes through screw mandrel, microspur slide block to the transferring roller applied thrust, two power source actings in conjunction, guaranteed the reliable controlled slip of transferring roller on line slideway.Control system is according to the gap setting value by controlling the movement with the controls metastasis roller of linear stepping motor and cylinder, and the gap detection device Real-time Measuring obtains gap width and feeds back to control system, guarantees its self-adjusting accuracy.And in view of the required precision of clearance between roll, linear stepping motor is converted into rectilinear motion by screw mandrel with gyration, the microspur slide block is the moving displacement of the relative metering roll of transferring roller at the component of the slide displacement on the lozenges of mount pad on the line slideway direction, reach thus high-precision microgap and move.
Further, one end of described mount pad is connected with cylinder, and the other end of mount pad arranges lozenges, and described line slideway is horizontally set on the bottom of mount pad, described linear stepping motor is fixedly connected on fixed frame, described screw mandrel by bearings on fixed frame.
Structure based on metering roll and transferring roller in existing coating mechanism, adopt said structure, cylinder is opposite to the force direction of mount pad in the line slideway direction with the microspur slide block to the power of mount pad, therefore both are respectively put at mount pad one end, the stressed of transferring roller more can keep stable, and moving process is easily controlled., for guaranteeing the running of motor and screw mandrel, be located on fixed frame.
Described gap detection device comprises magnetic grid and magnetic head, and described magnetic grid is arranged on the fixed frame at mount pad top and with line slideway, be arranged in parallel, the static setting relative to the center of circle of transferring roller of described magnetic head.Magnetic grid can reach the precision of 0.5um, and is therefore very applicable for microgap.
As another preferred version of this regulating system, described gap detection device comprises photoelectric encoder, and described photoelectric encoder is arranged on screw mandrel or linear stepping motor.It is as desirable angular transducer, can realize the accurate measurement of the physical quantitys such as angular displacement, output signal is connected with control system, not only can realize digital measurement and digital control, and with the sensor of other similar purposes, compare, have that precision is high, measurement category is wide, it is reliable to use, be easy to the advantage such as maintenance.
Be limited the again moving range of fixed thread bar, guarantee the security of system, is provided with approach switch on the path that the microspur slide block moves along screw mandrel, and described approach switch is used for the bound that spacing microspur slide block slides.Described approach switch is fixedly connected on the microspur slide block, and this approach switch comprises upper and lower approach switch.
For guaranteeing fine adjustment, eliminate the gap of governor motion, described screw mandrel is double nut gapless ball screw, and the feed screw nut is installed on the microspur slide block, and screw mandrel is fixed on support by plane bearing and deep groove ball bearing.
Preferably, select the PLC controller to control motor and cylinder, from operation simplification and intuitive, consider, the staff passes on and controls requirement the PLC controller by man-machine interface.
The present invention also provides the control flow of above-mentioned clearance between roll regulating system, and is specific as follows:
The first step, input the control command of gap adjustment by control system;
Second step, the judgement control command, control command is lock out operation, enters for the 3rd step; Control command is concrete gap width, enters for the 4th step;
In the 3rd step, metering roll separates with transferring roller, that is:
Step 1, the linear stepping motor running, move on the microspur slide block, and cylinder draws in;
The 4th step, metering roll and transferring roller gap adjustment, that is:
Step 1, judgement has or not the upper limit signal, and supreme limit signal enters step 2, has the upper limit signal to enter step 3;
Step 4, control system is gap width and clearance measurement value relatively, and both equate to enter step 7, and gap width enters step 5 greater than the clearance measurement value, and the gap value enters step 6 less than the clearance measurement value;
Step 5, linear stepping motor rotates, and moves on the microspur slide block, and cylinder draws in, returns to step 4;
Namely while from interpersonal interface, inputting concrete gap width, the PLC controller is according to when anterior diastema, calculating, directly issue the positional information of motor operation, carry out simultaneously the position judgment of regulated quantity by clearance inspection, stop mobile when gap width is identical with desired value, when gap width during greater than desired value transferring roller continue to move to metering roll, otherwise in like manner.Realized by this control flow the closed-loop control that fine adjustment and precision are controlled,, because the feedback that adds detects, guaranteed that native system is perfectly safe, reached accurate and control.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structure principle chart of a kind of clearance between roll regulating system of the present invention;
Fig. 2 is the concrete structure schematic diagram of a kind of clearance between roll regulating system of the present invention;
Fig. 3 is the mounting structure figure of the approach switch of a kind of clearance between roll regulating system of the present invention;
Fig. 4 is the flow chart that the present invention is based on the control flow of clearance between roll regulating system.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
a kind of clearance between roll regulating system, as shown in Figure 2, comprise fixing metering roll and and described metering roll between form the transferring roller of coating clearance, described transferring roller is arranged on fixed frame 12 by mount pad 7, 12 of described mount pad 7 and fixed frames are provided with line slideway 3, slide block and cylinder 4, described cylinder 4 is controlled the slip of mount pad 7 on line slideway 3, it also comprises gap detection device, described mount pad 7 is provided with lozenges, laminating is moved on described wedge face microspur slide block 6, described microspur slide block 6 is connected with microspur guide rail 5, the relative fixed frame 12 of this microspur guide rail 5 is fixing, described microspur slide block 6 is connected with screw mandrel 2, described screw mandrel 2 is connected with linear stepping motor 1 by shaft coupling 11, described linear stepping motor 1 is connected with control system, described control system and gap detection device communication connection.
In the technical program, the dynamic origin that cylinder 4 moves at line slideway 3 for the controls metastasis roller, and the another power source that linear stepping motor 1 moves at line slideway 3 as transferring roller, it is by screw mandrel 2,6 pairs of transferring roller applied thrusts of microspur slide block, two power source actings in conjunction, guaranteed the reliable controlled slip of transferring roller on line slideway 3.Control system is according to the gap setting value by controlling the movement with the controls metastasis roller of linear stepping motor 1 and cylinder 4, and the gap detection device Real-time Measuring obtains gap width and feeds back to control system, guarantees its self-adjusting accuracy.And in view of the required precision of clearance between roll, linear stepping motor 1 is converted into rectilinear motion by screw mandrel 2 with gyration, microspur slide block 6 is the moving displacement of the relative metering roll of transferring roller at the component of the slide displacement on the lozenges of mount pad 7 on line slideway 3 directions, reach thus high-precision microgap and move.
Further, one end of described mount pad 7 is connected with cylinder 4, and the other end of mount pad 7 arranges lozenges, and described line slideway 3 is horizontally set on the bottom of mount pad 7, described linear stepping motor 1 is fixedly connected on fixed frame 12, described screw mandrel 2 by bearings on fixed frame 12.
Structure based on metering roll and transferring roller in existing coating mechanism, adopt said structure, the power of 4 pairs of mount pads 7 of cylinder is opposite to the force direction of mount pad 7 in line slideway 3 directions with microspur slide block 6, therefore both are respectively put at mount pad 7 one ends, the stressed of transferring roller more can keep stable, and moving process is easily controlled., for guaranteeing the running of motor and screw mandrel 2, be located on fixed frame 12.
As shown in Figure 1, (the A roller is metering roll to two rollers, the B roller is transferring roller) between gap be made as dmm, the gradient of lozenges and vertical direction is α °, be that the displacement (be gap change displacement d) of transferring roller on line slideway 3 is tan α ° with microspur slide block 6 at the ratio of the displacement of vertical direction, when the value of α is less, ratio is larger, and displacement is thinner accurately at every turn.Transformation ratio is also arranged between the upper and lower displacement of motor corner and screw mandrel 2, further more rough displacement is converted into meticulous displacement thus, realized high accuracy microspur adjusting control.
Described gap detection device comprises magnetic grid 8 and magnetic head, and described magnetic grid 8 is arranged on the fixed frame 12 at mount pad 7 tops and with line slideway 3, be arranged in parallel, the static setting relative to the center of circle of transferring roller of described magnetic head.Magnetic grid 8 can reach the precision of 0.5um, and is therefore very applicable for microgap.Apparently, adopt grating also can reach accurate measurement, repeat no more here.
As another preferred version of this regulating system, described gap detection device comprises photoelectric encoder, and described photoelectric encoder is arranged on screw mandrel 2 or linear stepping motor 1.It is as desirable angular transducer, can realize the accurate measurement of the physical quantitys such as angular displacement, output signal is connected with control system, not only can realize digital measurement and digital control, and with the sensor of other similar purposes, compare, have that precision is high, measurement category is wide, it is reliable to use, be easy to the advantage such as maintenance.
Be limited the again moving range of fixed thread bar 2, guarantee the security of system, and as shown in Figure 3, along being provided with approach switch on the path that screw mandrel 2 moves, described approach switch is used for the bound that spacing microspur slide block 6 slides at microspur slide block 6.Described approach switch is fixedly connected on microspur slide block 6, and this approach switch comprises approach switch 10 and lower approach switch 9.
For guaranteeing fine adjustment, eliminate the gap of governor motion, described screw mandrel 2 is double nut gapless ball screw 2, and screw mandrel 2 nuts are installed on microspur slide block 6, and screw mandrel 2 is fixed on support by plane bearing and deep groove ball bearing.
Preferably, select the PLC controller to control motor and cylinder 4, from operation simplification and intuitive, consider, the staff passes on and controls requirement the PLC controller by man-machine interface.
The adoptable model of each critical component of this clearance between roll regulating system is as follows: described linear stepping motor 1 model is KSM4248D, and the model of described shaft coupling 11 is
The model of screw mandrel 2 is SFK01002, and the model of slide rail is GL25CA, and the model of cylinder 4 is SDA50-25., by the setting of this critical component and angle [alpha] value, can determine the ratio of motor corner and Δ d.
The present invention also provides the control flow of above-mentioned clearance between roll regulating system, and flow chart is as shown in Figure 4, and is specific as follows:
The first step, input the control command of gap adjustment by control system;
Second step, the judgement control command, control command is lock out operation, enters for the 3rd step; Control command is concrete gap width, enters for the 4th step;
In the 3rd step, metering roll separates with transferring roller, that is:
Step 1, linear stepping motor 1 running, move on microspur slide block 6, and cylinder 4 draws in;
The 4th step, metering roll and transferring roller gap adjustment, that is:
Step 1, judgement has or not the upper limit signal, and supreme limit signal enters step 2, has the upper limit signal to enter step 3;
Step 4, control system is gap width and clearance measurement value relatively, and both equate to enter step 7, and gap width enters step 5 greater than the clearance measurement value, and the gap value enters step 6 less than the clearance measurement value;
Step 5, linear stepping motor 1 rotates, and moves on microspur slide block 6, and cylinder 4 draws in, returns to step 4;
Namely while from interpersonal interface, inputting concrete gap width, the PLC controller is according to when anterior diastema, calculating, directly issue the positional information of motor operation, carry out simultaneously the position judgment of regulated quantity by clearance inspection, stop mobile when gap width is identical with desired value, when gap width during greater than desired value transferring roller continue to move to metering roll, otherwise in like manner.Realized by this control flow the closed-loop control that fine adjustment and precision are controlled,, because the feedback that adds detects, guaranteed that native system is perfectly safe, reached accurate and control.
The invention provides a kind of intelligent high-precision gap regulation scheme, allow the operator control more simply, intuitively and easily the gap of metering roll and transferring roller, make the personalized difference of gap adjustment obtain maximum the reduction, during adjusting, one key operation can be completed, really realize intelligentized fine adjustment, avoided trouble and the larger error measured with the measurement device of clearance gauge and so on again.And two roller gaps can be pulled open to 25mm, and are easy to clean.
When native system is debugged for the first time, need to be placed on the clearance gauge of 5 between transferring roller and metering roll, then regulate with manual mode, when being adjusted to clearance gauge and can't taking out, be zero point, carry out zero point by man-machine interface this moment and confirm, this moment, the PLC controller can deduct 5 as zero point according to currency, regulated and will carry out as benchmark afterwards.If while needing again school zero after long-term the use, repeat aforesaid operations and get final product.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. clearance between roll regulating system, comprise fixing metering roll and with described metering roll, form the transferring roller of coating clearance, described transferring roller is arranged on fixed frame by mount pad, be provided with line slideway between described mount pad and fixed frame, slide block and cylinder, described cylinder is controlled mount pad and is slided on line slideway, it is characterized in that: also comprise gap detection device, described mount pad is provided with the wedge face, laminating is moved on described wedge face the microspur slide block, described microspur slide block is connected with the microspur guide rail, the relative fixed frame of this microspur guide rail is fixed, described microspur slide block is connected with screw mandrel, described screw mandrel is connected with linear stepping motor by draft gage, described linear stepping motor is connected with control system, described control system and gap detection device communication connection.
2. clearance between roll regulating system according to claim 1, it is characterized in that: an end of described mount pad is connected with cylinder, the other end of mount pad arranges the wedge face, described line slideway is horizontally set on the bottom of mount pad, described linear stepping motor is fixedly connected on fixed frame, described screw mandrel by bearings on fixed frame.
3. clearance between roll regulating system according to claim 2, it is characterized in that: described gap detection device comprises magnetic grid and magnetic head, described magnetic grid is arranged on the fixed frame at mount pad top and with line slideway, be arranged in parallel, the static setting relative to the center of circle of metering roll of described magnetic head.
4. clearance between roll regulating system according to claim 2, it is characterized in that: described gap detection device comprises photoelectric encoder, described photoelectric encoder is arranged on screw mandrel or linear stepping motor.
5. clearance between roll regulating system according to claim 1, is characterized in that: be provided with approach switch on the path that the microspur slide block moves along screw mandrel, the bound that described approach switch slides for spacing microspur slide block.
6. clearance between roll regulating system according to claim 5, it is characterized in that: described approach switch is fixedly connected on the microspur slide block, and this approach switch comprises upper and lower approach switch.
7. clearance between roll regulating system according to claim 1, it is characterized in that: described screw mandrel is double nut gapless ball screw, and the feed screw nut is installed on the microspur slide block, and screw mandrel is fixed on support by plane bearing and deep groove ball bearing.
8. clearance between roll regulating system according to claim 1, it is characterized in that: described control system comprises PLC controller and man-machine interface.
9. control flow based on the clearance between roll regulating system is characterized in that:
The first step, input the control command of gap adjustment by control system;
Second step, the judgement control command, control command is lock out operation, enters for the 3rd step; Control command is concrete gap width, enters for the 4th step;
In the 3rd step, metering roll separates with transferring roller, that is:
Step 1, the linear stepping motor running, move on the microspur slide block, and cylinder draws in;
Step 2, the microspur slide block moves to the upper limit, the approach switch action, linear stepping motor stops;
Step 3, control flow finishes;
The 4th step, metering roll and transferring roller gap adjustment, that is:
Step 1, judgement has or not the upper limit signal, and supreme limit signal enters step 2, has the upper limit signal to enter step 3;
Step 2, the linear stepping motor running, move on the microspur slide block, and cylinder draws in, repeating step one;
Step 3, linear stepping motor rotates, and cylinder is overhanging, and the measurement clearance value, enter step 4;
Step 4, control system is gap width and clearance measurement value relatively, and both equate to enter step 7, and gap width enters step 5 greater than the clearance measurement value, and the gap value enters step 6 less than the clearance measurement value;
Step 5, linear stepping motor rotates, and moves on the microspur slide block, and cylinder draws in, returns to step 4;
Step 6, linear stepping motor rotates, and the microspur slide block moves down, and cylinder stretches out, and returns to step 4;
Step 7, linear stepping motor stops operating, and control flow finishes.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710473A (en) * | 2014-01-22 | 2014-04-09 | 浙江省湖州二轻机械总厂 | Automatic shaving machine brush roller tracking device |
| CN105136053A (en) * | 2015-05-22 | 2015-12-09 | 合肥京东方光电科技有限公司 | Gap adjusting device, gap adjusting method and transmission equipment |
| CN106694307A (en) * | 2016-12-06 | 2017-05-24 | 中山市金田机电有限公司 | Quantitative roller fine adjustment mechanism for solvent-free compounding machine and fine adjustment method |
| CN106240152B (en) * | 2016-08-31 | 2018-11-13 | 尤红平 | The nipper of adjustable wheel roller |
| CN113751284A (en) * | 2021-09-29 | 2021-12-07 | 李诗奕 | Automatic scraper height adjusting device of casting machine and slurry thickness control method |
| CN114354183A (en) * | 2021-12-09 | 2022-04-15 | 昆明北方红外技术股份有限公司 | Damping detection device and method for high-precision linear transmission mechanism |
| CN115025932A (en) * | 2022-06-20 | 2022-09-09 | 惠州市赢合科技有限公司 | Micro-gap adjustment control system and method, coating machine and storage medium |
| CN115076323A (en) * | 2022-06-16 | 2022-09-20 | 盛吉盛半导体科技(无锡)有限公司 | Loadlock transmission mechanism in PVD (physical vapor deposition) and CVD (chemical vapor deposition) equipment and control method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710473A (en) * | 2014-01-22 | 2014-04-09 | 浙江省湖州二轻机械总厂 | Automatic shaving machine brush roller tracking device |
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| US9751709B2 (en) | 2015-05-22 | 2017-09-05 | Boe Technology Group Co., Ltd. | Clearance adjusting apparatus, clearance adjusting method and conveyance device |
| CN106240152B (en) * | 2016-08-31 | 2018-11-13 | 尤红平 | The nipper of adjustable wheel roller |
| CN106694307A (en) * | 2016-12-06 | 2017-05-24 | 中山市金田机电有限公司 | Quantitative roller fine adjustment mechanism for solvent-free compounding machine and fine adjustment method |
| CN113751284A (en) * | 2021-09-29 | 2021-12-07 | 李诗奕 | Automatic scraper height adjusting device of casting machine and slurry thickness control method |
| CN114354183A (en) * | 2021-12-09 | 2022-04-15 | 昆明北方红外技术股份有限公司 | Damping detection device and method for high-precision linear transmission mechanism |
| CN115076323A (en) * | 2022-06-16 | 2022-09-20 | 盛吉盛半导体科技(无锡)有限公司 | Loadlock transmission mechanism in PVD (physical vapor deposition) and CVD (chemical vapor deposition) equipment and control method thereof |
| CN115025932A (en) * | 2022-06-20 | 2022-09-09 | 惠州市赢合科技有限公司 | Micro-gap adjustment control system and method, coating machine and storage medium |
| CN115025932B (en) * | 2022-06-20 | 2024-03-22 | 惠州市赢合科技有限公司 | Micro-gap adjusting control system and method, coating machine and storage medium |
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| CN103394441B (en) | 2016-12-28 |
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