CN1241492A - Intelligent all-digital constant-tension control method - Google Patents
Intelligent all-digital constant-tension control method Download PDFInfo
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- CN1241492A CN1241492A CN 98112913 CN98112913A CN1241492A CN 1241492 A CN1241492 A CN 1241492A CN 98112913 CN98112913 CN 98112913 CN 98112913 A CN98112913 A CN 98112913A CN 1241492 A CN1241492 A CN 1241492A
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- magnetic powder
- shaft
- tension
- power amplifier
- intelligent
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Abstract
The present invention relates to base material tension control in winding and compounding equipment of various printer, and aims at providing one improved tension measuring and controlling method to realize automatic constant-tension control and improve printing quality. The technological scheme is installing one transition roller between the feeding shaft and the reeling shaft, the rotation speed measuring ends of the shafts and roller are connected to rotation speed sensors separately, and the sensors, computer, power amplifier, brake and clutch constitute the tension measuring and controlling system. The present invention can result in stable printing quality, high efficiency and improved man-machine compatibility.
Description
The present invention relates to the base material rolling of set type flexographic presses and winding, equipment complex, the tension control method in the uncoiling process.
In background technology, the rolls of various printing machinery around, rolling, to unreel be an important step that involves quality.In the running of coiling printing equipment, the radius of blowing volume and rewinding volume in running, can occur must variation, be not adjusted accordingly as the moment of brake, clutch, then must cause the variation of substrate tension.In order to guarantee printing quality, will guarantee the constant tension in the base material printing process.In the former technology, see that Fig. 1 is described, its basic thought is when base material 12 radiuses that twine on the dispensing shaft 2 gradually reduce, correspondingly change the voltage input of magnetic powder cluth 13 (or torque motor) on magnetic powder brake 1 on the dispensing shaft 2 or the collecting shaft 5, promptly change the moment on dispensing shaft 2 or the collecting shaft 5, thereby reach the constant control of base material 12 tension force.Its traditional control method is in blowing tonometry roller 3 axial two sides guide roller 4 to be arranged, strong sensor 6 on the tonometry roller 3 end supports, tension force to the base material 12 of working is directly measured, the signal that measures is through amplifier 7, analog signal converter 8 (A/D or V/F conversion) is given computer 9 and is handled, signal after the processing is through the size of current of power amplifier 10 control magnetic powder brakes 1, like this in the running, the tension variation of material volume is passed through the automatic control system closed loop through power sensor 6, control dispensing shaft 2 (electric current of magnetic powder brake) thus realize the permanent tension force control of base material 12, at present commercially available or import constant tension controller system all is based on this technical conceive and carries out work.We find in long-term practice, and there is the defective of following power face in this system in application:
1, install the tonometry sensor additional, must change structure, making, installation, workload is big, the cost height.
2, adopt the dynamometry mode, exist many troubles of analog measurement, be indispensable link as amplifier, A/D or V/F conversion etc., TT﹠C system is complicated, and exist the problem of regular calibration, the general user of manufacturer is difficult to guarantee good user mode, how safeguards that long term operation stability is the potential and insoluble problem of each user.
3, in the mechanical movement process, whole tonometry control system is beated etc. to mechanical oscillation, machine acceleration and deceleration, base material ellipse and is disturbed comparatively responsively, is prone to phenomenons such as the shake of tension force control and vibration, causes tonometry inaccurate, control is inaccurate, is difficult to guarantee the base material printing quality.
The objective of the invention is to overcome the unfavorable factor in the above-mentioned back of the body amount technology, a kind of brand-new intelligent all-digital constant-tension control method of design.Thoroughly having solved substrate tension that former technology exists measures inaccurate, inaccuracy, is difficult to stable control again, the unwarrantable problem of printing quality and operating efficiency, utilize brand-new measurement control operation principle, reach the constant control of substrate tension, guarantee the stable of product quality.
Technical solution of the present invention is as follows:
Comprise following technical scheme; Dispensing shaft 2 on the support and collecting shaft 5 assemble magnetic powder brake 1 and magnetic powder cluth 13 respectively, sensor output machine 9 as calculated connects power amplifier 10, power amplifier 10 outputs connect magnetic powder brake 1 and magnetic powder cluth 13 respectively, form the tension measure and control system, it is characterized in that: between dispensing shaft 12 and collecting shaft 5 assembling by base material 12 the mistake roller 14 (it can be the bigger driven roll of any cornerite on the equipment, need not special setting), at dispensing shaft 2, cross the axle head of roll shaft 14 and rewinding roll shaft 5 speed probe 11 is installed respectively, the rotating speed data signal of speed probe 11 directly exports computer 9 to.
Technical solution of the present invention also comprises:
The output current of the power amplifier 10 of control magnetic powder brake 1
The output current I of the power amplifier 10 of control magnetic powder cluth 13
2=K
2N/n
2
Description of drawings of the present invention is as follows:
Fig. 1 is traditional permanent tonometry control principle schematic diagram in the background technology;
Fig. 2 is the permanent tonometry control principle schematic diagram of the present invention's intelligence.
Number in the figure is described as follows:
N-crosses the rotation speed n of roll shaft 14
1The rotating speed of-dispensing shaft 2
n
2The rotating speed I of-collecting shaft 5
1The operating current of magnetic powder brake on the-dispensing shaft
I
2The operating current of magnetic powder cluth on the-collecting shaft 5
Establish in addition: I
1°-electric current of magnetic powder brake when setting the substrate tension value;
I
2°-electric current of magnetic powder brake when setting the substrate tension value;
(n/n
1) °-roller 14 excessively when setting the substrate tension value and the rotating ratio of dispensing shaft 2;
(n/n
2) °-roller 14 excessively when setting the substrate tension value and the rotating ratio of collecting shaft 5; K
1=I
1°/(n/n
1) °, K
2=I
2°/(n/n
2) °.Adjoint of the present invention is described in further detail: ginseng figure one, this is the permanent tension measure and control schematic diagram of background technology, its main feature is by power sensor 6 side group materials 12 tension force, size of current by automatic control system closed-loop control brake 1 realizes permanent tension force control, its weak point as previously mentioned, in this outline.Referring to Fig. 2, this is a fundamental diagram of the present invention, because base material 12 tension force change with the size of the base material radius on dispensing shaft 2 and the collecting shaft 5, because of utilizing power mode analog quantity check weighing sensing to have a lot of problems, so the present invention utilizes dispensing shaft 2 and the ratio of crossing roller 14 rotating speeds to measure effectively and accurately, realize the electric current of control magnetic powder brake, perhaps utilize collecting shaft 5 and the measurement of the ratio of the rotating speed of roller 14 excessively, realize the electric current adjusting of control magnetic powder cluth 13, finally reach the constant tension of base material 12 in operation process, control the purpose of product quality effectively.
Advantage of the present invention and effect are as follows:
1, owing to controlling substrate tension by measuring the axle rotating speed, so it is (straight to have broken the traditional measurement substrate tension Connecing sensor firmly surveys) method, overcome the defective that originally has the analog quantity test, detection limit all is Data signal has improved the precision and stability of whole control system significantly.
2, owing to adopt tachometric survey Digital Circuit Control method, reach so saved the guide roller of original needs Other parts, cost has improved the competitiveness in market.
3, because the present invention need not the frame for movements such as Varying Axial, roller, measuring point picks up on axle or roller easily Get pulse signal, thus the invention enables the whole course of work and the shaft gear number of teeth or rotating disk resolution ratio irrelevant, namely Fill i.e. usefulness, have convenient and reliable, the characteristics such as adaptability is very strong.
4, because the present invention does not consider the radius factor of rolls, thus during the sudden change of base material coil diameter (as because of work Need midway the situations such as change of lap), the tension measure and control system adapts to automatically, and having avoided needs manually again establish in the past Decide tension force, the problem during charge for loss of working time, the workman is easy to operate again accurate.
5, because the present invention only needs a tension force to set, just energy continuous operation, the whole system automatic operation, So avoided considering in the past other parameter, simple to operate such as coil diameter, the isoparametric input of base material thickness, big Improved to amplitude operating efficiency, man-machine compatibility is especially good.
6, the present invention is being applied on the compound winding apparatus, when the retractable material number of axle increases, can realize multi-point interlinked control.Material axle of every increase only need increase by one road pulse signal sensor, and is simple and easy to do, overcome conventional method, each group jockey pulley (two cross roller one jockey pulley) can only be controlled a material axle, and every increase a bit, must increase by one group of jockey pulley, complex structure during multiple spot control, the problem that cost increases suddenly.
Claims (3)
1, intelligent all-digital constant-tension control method, dispensing shaft on the support (2) and collecting shaft (5) assemble magnetic powder brake (1) and magnetic powder cluth (13) respectively, sensor output machine (9) as calculated connects power amplifier (10), power amplifier (10) output connects magnetic powder brake (1) and magnetic powder cluth (13) respectively, form the tension measure and control system, it is characterized in that: between dispensing shaft (12) and collecting shaft (5) assembling by base material (12) the mistake roller (14) (it can be the bigger driven roll of any cornerite on the equipment, need not special setting), in dispensing shaft (2), cross the axle head of roll shaft (14) and rewinding roll shaft (5) speed probe (11) is installed respectively, the rotating speed data signal of speed probe (11) directly exports computer (9) to.
2, intelligent all-digital constant-tension control method according to claim 1 is characterized in that: the output current I of the power amplifier (10) of control magnetic powder brake (1)
1=K
1N/n
1
3, intelligent all-digital constant-tension control method according to claim 1 is characterized in that: the output current I of the power amplifier (10) of control magnetic powder cluth (13)
2=K
2N/n
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98112913A CN1086983C (en) | 1998-07-14 | 1998-07-14 | Intelligent all-digital constant-tension control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98112913A CN1086983C (en) | 1998-07-14 | 1998-07-14 | Intelligent all-digital constant-tension control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1241492A true CN1241492A (en) | 2000-01-19 |
| CN1086983C CN1086983C (en) | 2002-07-03 |
Family
ID=5222702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98112913A Expired - Fee Related CN1086983C (en) | 1998-07-14 | 1998-07-14 | Intelligent all-digital constant-tension control method |
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| Country | Link |
|---|---|
| CN (1) | CN1086983C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786370A (en) * | 2010-01-21 | 2010-07-28 | 昆山雄风彩印有限公司 | Screen printing machine |
| CN102626955A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Double-guide roll linear silicon wafer cutting system |
| CN102626951A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Silicon wafer cutting equipment with conveniently-replaced guide rolls |
| CN102626956A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Silicon wafer cutting equipment with function of automatic tension adjustment |
| CN105217355A (en) * | 2015-09-14 | 2016-01-06 | 浙江布佳迪智能科技有限公司 | A kind of cloth flattens collating unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116607A (en) * | 1994-11-25 | 1996-02-14 | 南京航空航天大学 | Tension controlling apparatus |
| CN2239889Y (en) * | 1995-09-01 | 1996-11-13 | 无锡宝南机器制造有限公司 | Second-level tension control device for paper tape |
-
1998
- 1998-07-14 CN CN98112913A patent/CN1086983C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786370A (en) * | 2010-01-21 | 2010-07-28 | 昆山雄风彩印有限公司 | Screen printing machine |
| CN102626955A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Double-guide roll linear silicon wafer cutting system |
| CN102626951A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Silicon wafer cutting equipment with conveniently-replaced guide rolls |
| CN102626956A (en) * | 2012-02-14 | 2012-08-08 | 上海五同机械制造有限公司 | Silicon wafer cutting equipment with function of automatic tension adjustment |
| CN105217355A (en) * | 2015-09-14 | 2016-01-06 | 浙江布佳迪智能科技有限公司 | A kind of cloth flattens collating unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1086983C (en) | 2002-07-03 |
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