CN111469532B - Online torque monitoring method for suspension printing roller - Google Patents
Online torque monitoring method for suspension printing roller Download PDFInfo
- Publication number
- CN111469532B CN111469532B CN202010472649.9A CN202010472649A CN111469532B CN 111469532 B CN111469532 B CN 111469532B CN 202010472649 A CN202010472649 A CN 202010472649A CN 111469532 B CN111469532 B CN 111469532B
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- sleeve
- armature
- coil
- excitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 230000005284 excitation Effects 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/10—Forme cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides an online torque monitoring method for a suspension printing roller, and belongs to the technical field of printing equipment. Two groups of second excitation components are arranged in the middle of the body, each second excitation component comprises a plurality of second armature frameworks which are respectively arranged on the body at Xiang Junyun, a second coil is wound on each second armature framework, each second armature framework corresponds to one second permanent magnet strip, the second permanent magnet strips are positioned on the outer sides of the second permanent magnet frameworks, the second permanent magnet strips are fixed on the inner wall of the sleeve, a connecting line between two magnetic poles of the second permanent magnet strips is perpendicular to the axis of the sleeve, the second coils are connected in parallel and then are connected with an external power supply, and an ammeter is connected in series on a main line after the second coils are connected in parallel; the situation that the body rotates relative to the sleeve is monitored by reading the ammeter in real time. The invention has the advantages of alleviating the printing pressure, improving the printing quality and the like.
Description
Technical Field
The invention belongs to the technical field of printing equipment, and relates to an online torque monitoring method of a suspension printing roller.
Background
The printing machine is printing equipment which is stamped on a printing carrier after paint is adhered to the circumferential surface of a printing roller, and the printing pressure between the printing roller and the printing carrier determines the printing quality such as the definition of the image and the text, in the prior art, the adjustment of the printing pressure is realized through the adjustment of the gap between the rollers, the adjustment process is very difficult due to extremely small gap, the adjustment process can be maintained for a certain time, the printing pressure can be gradually reduced along with the lapse of the use time under the action of unavoidable factors such as abrasion, and the quality, particularly the uniformity of the printed matter is greatly influenced.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an online torque monitoring method for a suspension printing roller.
The aim of the invention can be achieved by the following technical scheme: the on-line torque monitoring method for the suspension printing roller is characterized in that the suspension printing roller comprises a body and a sleeve sleeved on the body, a magnetic suspension structure is arranged between two ends of the sleeve and the body respectively, the magnetic suspension structure comprises a plurality of first permanent magnet strips which are circumferentially and uniformly distributed on the inner wall of the sleeve, a plurality of first excitation components which are in one-to-one correspondence with the first permanent magnet strips are arranged on the outer peripheral surface of the body, the first excitation components comprise a first armature framework and a first coil wound on the first armature framework, the first excitation components can generate Lorentz force in the radial direction of the sleeve, a connecting line between two magnetic poles of the first permanent magnet strips is positioned on the radial line of the sleeve, a gap is reserved between the outer end of the first armature framework and the inner end of the first permanent magnet strip, and a gap is reserved between adjacent first permanent magnet strips; the first permanent magnet strip can generate attractive force with a corresponding first armature framework, and the first coil is connected with an external power supply;
the middle part of the body is provided with two groups of second excitation components, each second excitation component comprises a plurality of second armature frameworks which are respectively arranged on the body at a plurality of weeks Xiang Junyun, each second armature framework is wound with a second coil, each second armature framework corresponds to one second permanent magnet strip, the second permanent magnet strips are positioned at the outer sides of the second permanent magnet frameworks and are fixed on the inner wall of the sleeve, a connecting line between two magnetic poles of each second permanent magnet strip is perpendicular to the axis of the sleeve, each second coil is connected with an external power supply after being connected in parallel, and an ammeter is connected in series on a main line after each second coil is connected in parallel; the two groups of second excitation components are provided with a plurality of third permanent magnet strips, the third permanent magnet strips are fixed on the inner wall of the sleeve, and a connecting line between two magnetic poles of the third permanent magnet strips is parallel to the axis of the sleeve;
the situation that the body rotates relative to the sleeve is monitored by reading the ammeter in real time.
In order to avoid shaking the position between the sleeve and the body in the axial direction, the printing quality is affected by unbalanced external force, a second excitation assembly capable of limiting the sleeve and the body in the axial direction is arranged between the body and the sleeve and is matched with each third permanent magnetic strip, the repulsive force for realizing positioning of the body and the sleeve can be generated in the axial direction, and specifically, the repulsive force between the two groups of second excitation assemblies and the third permanent magnetic strips is generated, so that the axial direction between the body and the sleeve cannot be easily displaced, and the stability of the printing roller is improved.
In order to enable whether relative rotation occurs between the main body and the sleeve, an ammeter is connected in a loop formed by a main line formed by connecting the external power supply and each second coil in parallel, namely, the ammeter, the external power supply and each second coil connected in parallel form a series loop, so that the total current in each second coil is displayed on the ammeter, and in the process that the voltage of the external power supply is not kept constant, if the apparent data of the ammeter changes, the relative rotation occurs between the sleeve and the main body, the current-carrying voltage of the first coil needs to be increased to overcome, but the requirement of the printing pressure buffering effect needs to be considered.
The reason that the second coil electric current changed is that the magnetic induction line that the second permanent magnetism strip produced is cut by the second coil, and the reason of cutting is that both have taken place relative displacement, and the second coil is the reason that can not cause the moment of torsion to the sleeve under the circular telegram condition lies in: the winding directions of the two groups of second coils are opposite and the energizing directions are the same, the torques generated by the two groups of second coils on the sleeve are opposite and offset each other, the winding directions of the two groups of energizing coils are opposite and the energizing directions are the same, so that opposite magnetic poles can be generated, and then the two groups of second coils act on the third permanent magnet strip to form repulsive force on the third magnetic strip.
In the above-mentioned on-line torque monitoring method for suspended printing rollers, the first permanent magnet strips in the same ring, the first excitation groups in the same ring and the second excitation groups in the same ring are all fixedly connected with the body after being wrapped by resin, and the second permanent magnet strips in the same ring and the third permanent magnet strips in the same ring are fixedly connected with the sleeve after being wrapped by resin. This can improve the insulation performance and the protection of the scattered parts.
The connection of the lead and the external power supply is completed through the electric brush arranged on the body.
Drawings
Fig. 1 is a schematic view of the structure of the present printing roller.
Fig. 2 is a left side view of fig. 1.
In the figure, 1, a body; 2. a sleeve; 3. a first permanent magnet strip; 4. a first excitation assembly; 5. a second excitation assembly; 6. a second permanent magnet strip; 7. and a third permanent magnetic strip.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the magnetic suspension structure comprises a body 1 and a sleeve 2 sleeved on the body 1, wherein a magnetic suspension structure is arranged between two ends of the sleeve 2 and the body 1 respectively, the magnetic suspension structure comprises a plurality of first permanent magnet strips 3 which are circumferentially and uniformly distributed on the inner wall of the sleeve 2, a plurality of first excitation components 4 which are in one-to-one correspondence with the first permanent magnet strips 3 are arranged on the outer peripheral surface of the body 1, the first excitation components 4 comprise first armature frameworks and first coils wound on the first armature frameworks, the first excitation components 4 can generate lorentz force in the radial direction of the sleeve 2, a connecting line between two magnetic poles of the first permanent magnet strips 3 is positioned on the radial line of the sleeve 2, a gap is reserved between the outer end of the first armature frameworks and the inner end of the first permanent magnet strips 3, and a gap is reserved between adjacent first permanent magnet strips 3; the first permanent magnetic strip 3 can generate attractive force with the corresponding first armature framework, and the first coil is connected with an external power supply.
For the printing roller, the uniformity of the printing pressure is very important, through this scheme, body 1 is in the rotatory in-process, owing to can inhale each other between body 1 outer wall and the sleeve 2 inner wall, make both be in suspension state, but owing to all have the clearance between adjacent first permanent magnetic stripe 3 and the adjacent first armature skeleton, make the relative motion that can not be easy between body 1 and the sleeve 2, make body 1 and sleeve 2 synchronous rotation, but when the printing pressure that sleeve 2 received is great, then can produce radial line direction's position adjustment between the two, thereby alleviate the inequality and the change of printing pressure, make printing pressure relatively even and invariable.
Two groups of second excitation components 5 are arranged in the middle of the body 1, each second excitation component 5 comprises a plurality of second armature frameworks which are respectively arranged on the body 1 at Xiang Junyun, each second armature framework is wound with a second coil, each second armature framework corresponds to one second permanent magnet strip 6, the second permanent magnet strips 6 are positioned on the outer sides of the second permanent magnet frameworks, the second permanent magnet strips 6 are fixed on the inner wall of the sleeve 2, a connecting line between two magnetic poles of the second permanent magnet strips 6 is perpendicular to the axis of the sleeve 2, the second coils are connected in parallel and then connected with an external power supply, and an ammeter is connected in series on a main line after the second coils are connected in parallel; the two groups of second excitation components 5 are provided with a plurality of third permanent magnet strips 7, the third permanent magnet strips 7 are fixed on the inner wall of the sleeve 2, and the connecting line between the two magnetic poles of the third permanent magnet strips 7 is parallel to the axis of the sleeve 2. In order to avoid shaking the positions of the sleeve 2 and the body 1 in the axial direction, which causes the printing roller to influence the printing quality under the action of unbalanced external force, a second exciting assembly 5 which can limit the positions of the sleeve 2 and the body 1 in the axial direction is arranged between the body 1 and the sleeve 2 and is matched with each third permanent magnet strip 7, so that repulsive force for realizing positioning of the body 1 and the sleeve 2 can be generated in the axial direction, and specifically, the two groups of second exciting assemblies 5 are repulsive to the third permanent magnet strips 7, so that the axial direction between the body 1 and the sleeve 2 cannot be easily displaced, and the stability of the printing roller is improved.
In order to enable whether relative rotation occurs between the body 1 and the sleeve 2, an ammeter is connected in a loop formed by a main line formed by connecting an external power supply and each second coil in parallel, namely, the ammeter, the external power supply and each second coil connected in parallel form a series loop, so that the total current in each second coil is displayed on the ammeter, when the voltage of the external power supply is not kept constant, if the apparent data of the ammeter changes, the relative rotation occurs between the sleeve 2 and the body 1, at the moment, the relative rotation needs to be overcome by adjusting the increase of the energizing voltage of the first coil, but the requirement of the printing pressure buffering effect needs to be considered, and the connection of a wire and the external power supply is completed through an electric brush arranged on the body 1.
The reason why the second coil current changes is that the magnetic induction wire generated by the second permanent magnet strip 6 is cut by the second coil, the cutting is caused by the relative displacement of the second coil and the second coil is electrified without causing torque to the sleeve 2, which is that: the winding directions of the two groups of second coils are opposite and the energizing directions are the same, the torque generated by the two groups of second coils on the sleeve 2 is opposite and counteracts each other, the winding directions of the two groups of energizing coils are opposite and the energizing directions are the same, opposite magnetic poles can be generated, and then the two groups of second coils act on the third permanent magnet strip 7 to form repulsive force on the third magnetic strip.
The first permanent magnet strip 3 in the same circular ring, the first excitation group in the same circular ring and the second excitation group in the same circular ring are fixedly connected with the body 1 after being wrapped by resin, and the second permanent magnet strip 6 in the same circular ring and the third permanent magnet strip 7 in the same circular ring are fixedly connected with the sleeve 2 after being wrapped by resin. This can improve the insulation performance and the protection of the scattered parts.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (2)
1. The on-line torque monitoring method of the suspension printing roller is characterized in that the suspension printing roller comprises a body (1) and a sleeve (2) sleeved on the body (1), a magnetic suspension structure is arranged between two ends of the sleeve (2) and the body (1) respectively, the magnetic suspension structure comprises a plurality of first permanent magnet strips (3) which are circumferentially and uniformly distributed on the inner wall of the sleeve (2), a plurality of first excitation components (4) which are in one-to-one correspondence with the first permanent magnet strips (3) are arranged on the peripheral surface of the body (1), the first excitation components (4) comprise a first armature framework and a first coil wound on the first armature framework, the first excitation components (4) can generate Lorentz force in the radial direction of the sleeve (2), a connecting line between two magnetic poles of the first permanent magnet strips (3) is positioned on the radial line of the sleeve (2), gaps are reserved between the outer ends of the first armature framework and the inner ends of the first permanent magnet strips (3), and gaps are reserved between the adjacent first permanent magnet strips (3); the first permanent magnet strip (3) can generate attractive force with a corresponding first armature framework, and the first coil is connected with an external power supply;
two groups of second excitation components (5) are arranged in the middle of the body (1), each second excitation component (5) comprises a plurality of second armature frameworks which are arranged on the body (1) in a surrounding mode, each second armature framework is provided with a second coil in a surrounding mode, each second armature framework corresponds to one second permanent magnet strip (6), each second permanent magnet strip (6) is located on the outer side of the corresponding second permanent magnet framework, each second permanent magnet strip (6) is fixed on the inner wall of the sleeve (2), a connecting line between two magnetic poles of each second permanent magnet strip (6) is perpendicular to the axis of the sleeve (2), each second coil is connected with an external power supply after being connected in parallel, and an ammeter is connected in series on a main line after each second coil is connected in parallel; the two groups of second excitation components (5) are provided with a plurality of third permanent magnet strips (7), the third permanent magnet strips (7) are fixed on the inner wall of the sleeve (2), and the connecting line between the two magnetic poles of the third permanent magnet strips (7) is parallel to the axis of the sleeve (2);
the rotation condition of the body relative to the sleeve is monitored by monitoring the fluctuation of the apparent value of the ammeter in real time.
2. The on-line torque monitoring method of the suspension printing roller according to claim 1, wherein a first permanent magnet strip (3) positioned in the same circular ring, a first excitation group positioned in the same circular ring and a second excitation group positioned in the same circular ring are fixedly connected with the body (1) after being wrapped by resin, and a second permanent magnet strip (6) positioned in the same circular ring and a third permanent magnet strip (7) positioned in the same circular ring are fixedly connected with the sleeve (2) after being wrapped by resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472649.9A CN111469532B (en) | 2020-05-29 | 2020-05-29 | Online torque monitoring method for suspension printing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472649.9A CN111469532B (en) | 2020-05-29 | 2020-05-29 | Online torque monitoring method for suspension printing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111469532A CN111469532A (en) | 2020-07-31 |
| CN111469532B true CN111469532B (en) | 2023-12-08 |
Family
ID=71763645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010472649.9A Active CN111469532B (en) | 2020-05-29 | 2020-05-29 | Online torque monitoring method for suspension printing roller |
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| Country | Link |
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| CN (1) | CN111469532B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05122892A (en) * | 1991-10-25 | 1993-05-18 | Toshiba Corp | Linear dynamic magnetic bearing device |
| JPH05122893A (en) * | 1991-10-25 | 1993-05-18 | Toshiba Corp | Linear dynamic magnetic bearing device |
| JP2001188427A (en) * | 1999-12-28 | 2001-07-10 | Sharp Corp | Induction heating device |
| CN102941157A (en) * | 2012-11-21 | 2013-02-27 | 湖北佳兴科技有限公司 | High-gradient high-magnetic-field horizontal magnetic roller |
| CN203091063U (en) * | 2012-12-19 | 2013-07-31 | 岳阳强力电磁设备有限公司 | Straight barrel type magnetic roll |
| KR101452887B1 (en) * | 2014-02-06 | 2014-10-22 | 한국기계연구원 | Printing pressure controlling apparatus using voice coil actuator |
| CN104986533A (en) * | 2015-07-09 | 2015-10-21 | 南京艾凌节能技术有限公司 | Permanent magnetic suspension carrier roller |
| CN105600341A (en) * | 2016-01-19 | 2016-05-25 | 武汉理工大学 | Permanent magnet carrier roller belt conveyor |
| WO2017039105A1 (en) * | 2015-09-03 | 2017-03-09 | 한국기계연구원 | Roller module having magnetic bearing and permanent magnet portion |
| CN206913886U (en) * | 2017-06-21 | 2018-01-23 | 佛山格尼斯磁悬浮技术有限公司 | Accurate print roller |
| JP6343060B1 (en) * | 2017-04-19 | 2018-06-13 | Ｋｙｂ株式会社 | Damper with power generation function |
| CN108657011A (en) * | 2018-03-20 | 2018-10-16 | 武汉理工大学 | A kind of vacuum pipe magnetcisuspension train mixing EMS supporting structures |
| CN109772524A (en) * | 2019-03-14 | 2019-05-21 | 湖北科技学院 | A kind of efficient magnetic force ball mill |
-
2020
- 2020-05-29 CN CN202010472649.9A patent/CN111469532B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05122892A (en) * | 1991-10-25 | 1993-05-18 | Toshiba Corp | Linear dynamic magnetic bearing device |
| JPH05122893A (en) * | 1991-10-25 | 1993-05-18 | Toshiba Corp | Linear dynamic magnetic bearing device |
| JP2001188427A (en) * | 1999-12-28 | 2001-07-10 | Sharp Corp | Induction heating device |
| CN102941157A (en) * | 2012-11-21 | 2013-02-27 | 湖北佳兴科技有限公司 | High-gradient high-magnetic-field horizontal magnetic roller |
| CN203091063U (en) * | 2012-12-19 | 2013-07-31 | 岳阳强力电磁设备有限公司 | Straight barrel type magnetic roll |
| KR101452887B1 (en) * | 2014-02-06 | 2014-10-22 | 한국기계연구원 | Printing pressure controlling apparatus using voice coil actuator |
| CN104986533A (en) * | 2015-07-09 | 2015-10-21 | 南京艾凌节能技术有限公司 | Permanent magnetic suspension carrier roller |
| WO2017039105A1 (en) * | 2015-09-03 | 2017-03-09 | 한국기계연구원 | Roller module having magnetic bearing and permanent magnet portion |
| CN105600341A (en) * | 2016-01-19 | 2016-05-25 | 武汉理工大学 | Permanent magnet carrier roller belt conveyor |
| JP6343060B1 (en) * | 2017-04-19 | 2018-06-13 | Ｋｙｂ株式会社 | Damper with power generation function |
| CN206913886U (en) * | 2017-06-21 | 2018-01-23 | 佛山格尼斯磁悬浮技术有限公司 | Accurate print roller |
| CN108657011A (en) * | 2018-03-20 | 2018-10-16 | 武汉理工大学 | A kind of vacuum pipe magnetcisuspension train mixing EMS supporting structures |
| CN109772524A (en) * | 2019-03-14 | 2019-05-21 | 湖北科技学院 | A kind of efficient magnetic force ball mill |
Non-Patent Citations (1)
| Title |
|---|
| 无轴技术在印刷机上的应用;潘杰;杨建中;;出版与印刷(第01期);全文 * |
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| CN111469532A (en) | 2020-07-31 |
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