CN111361307B - Deviation-preventing micro-tension cloth discharging method for ink jet device - Google Patents
Deviation-preventing micro-tension cloth discharging method for ink jet device Download PDFInfo
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- CN111361307B CN111361307B CN202010220356.1A CN202010220356A CN111361307B CN 111361307 B CN111361307 B CN 111361307B CN 202010220356 A CN202010220356 A CN 202010220356A CN 111361307 B CN111361307 B CN 111361307B
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- fiber fabric
- driving
- driving roller
- roll
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B41J15/046—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for the guidance of continuous copy material, e.g. for preventing skewed conveyance of the continuous copy material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
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- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to the technical field of fiber fabric production, in particular to an anti-deviation micro-tension cloth discharging method for an ink jet device, wherein a driving roller is arranged at the front end of the ink jet device, a driven roller is arranged at the rear end of the ink jet device, and the rotating speed of the driving roller is set according to the following formula: vDriving rollkV, wherein VDriving rollThe edge linear speed of a driving roller for conveying the fiber fabric is shown, and V is the conveying line speed of a cutting position of the fiber fabric; k is a coefficient greater than 1 and is set according to the characteristics of the fiber fabric and the surface material of the drive roll. According to the invention, the driving roller and the driven roller are respectively arranged at the front end and the rear end of the ink-jet device, and the edge linear speed of the driving roller is amplified by a coefficient k larger than 1, so that the friction of the driving roller on the fiber fabric replaces the friction of the original cutting position on the fiber fabric, the fabric obtains stable speed and the uncontrollable yarn storage condition can not be formed at the front end of the driving roller, and the displacement of the fiber fabric caused by the rotation of the driving roller is consistent with the displacement of the fiber fabric driven by the cutting position.
Description
Technical Field
The invention relates to the technical field of fiber fabric production, in particular to an anti-deviation micro-tension cloth discharging method for an ink jet device.
Background
After the fiber fabric cloth surface is subjected to ink jet so as to form marks on the cloth surface, the fiber fabric needs to be conveyed to a cutting machine for cutting, and the positions of the marks on the cloth surface need to be accurately positioned during cutting, so that the marks are exposed outside and used for distinguishing the cloth pieces after the cutting is finished and the fiber fabric cloth pieces are wound.
In the process of unreeling, the number of piles of the fabric of winding on unreeling roller is different, and under the circumstances of invariable rotation power output, when the number of piles is more, can lead to unreeling the condition not in place because of fabric's weight overweight, can make fabric can't reach inkjet department according to predetermined position under this kind of circumstances to make the inkjet position take place the skew, and if increase rotation power output in order to solve this problem, then can lead to the skew of cloth cover because of going out too much.
In view of the above problems, the present inventors have made extensive research and innovation based on practical experience and professional knowledge of many years of engineering application of such products, and together with the application of theory, in order to create a deviation-preventing micro-tension fabric discharging method for an ink jet apparatus, which is more practical.
Disclosure of Invention
The invention provides a deviation-preventing micro-tension cloth discharging method of an ink jet device, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a deviation-preventing micro-tension cloth discharging method for an ink jet device is characterized in that a driving roller is arranged at the front end of the ink jet device, a driven roller is arranged at the rear end of the ink jet device, and the rotating speed of the driving roller is set according to the following formula:
wherein, VDriving rollThe edge linear speed of a driving roller for conveying the fiber fabric is shown, and V is the conveying line speed of a cutting position of the fiber fabric; k is a coefficient greater than 1 and is set according to the characteristics of the fiber fabric and the surface material of the drive roll.
Further, the fiber fabric between the driving roller and the driven roller is vertically arranged.
Further, when the fiber fabric has only one layer, the coefficient k varies depending on the characteristics of the fiber fabric.
Further, when the number of the layers of the same type of fiber fabric is more than or equal to 2, the driving rollers of the fiber fabrics in each layer are horizontally arranged in parallel, and the driven rollers of the fiber fabrics are also horizontally arranged in parallel.
Further, distanceV1 of the first driving roller nearest to the fiber fabric unwinding partDriving rollThe V of other driving rollers is changed according to the characteristics of the fiber fabric and the surface material of the driving rollerDriving rollAt the V1Driving rollBased on the change of the distance of the unreeling part of the fiber fabric.
Further, V of the drive rollDriving rollAt the V1Driving rollThe larger the distance of the unreeling part relative to the fiber fabric is, the smaller the coefficient k value is.
Further, with V1 of the first drive rollerDriving rollFor reference, Vn of the n-th driving roll with respect to the unwinding portion of the web is calculated according to the following formulaDriving rollAnd (3) calculating:
wherein VnDriving rollThe edge linear velocity of the nth driving roller relative to the unreeling part of the fiber fabric is shown as k1, the coefficient of the first driving roller is shown as L1, the axial distance of the first driving roller relative to the corresponding unreeling roller is shown as L, and Ln is the axial distance of the nth driving roller relative to the corresponding unreeling roller.
Through the technical scheme, the invention has the beneficial effects that:
according to the invention, the risk of cloth cover deviation caused by increasing the unreeling speed can be avoided, the driving roller and the driven roller are respectively arranged at the front end and the rear end of the ink jet device, the edge linear speed of the driving roller is amplified by a coefficient k larger than 1, the friction of the driving roller on the fiber fabric can replace the friction of the original cutting position on the fiber fabric, the fabric obtains stable speed, the uncontrollable wire storage condition cannot be formed at the front end of the driving roller, and the displacement of the fiber fabric caused by the rotation of the driving roller is consistent with the displacement of the fiber fabric driven by the cutting position.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view showing the arrangement of a driving roller, an ink jet device, a cutting part and a driven roller in a second embodiment;
reference numerals: a driving roller 1, an ink jet device 2, a cutting part 3 and a driven roller 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
A deviation-preventing micro-tension cloth discharging method for an ink jet device comprises the steps that a driving roller 1 is arranged at the front end of the ink jet device 2, a driven roller 4 is arranged at the rear end of the ink jet device 2, and the unwinding speed of the driving roller 1 is set according to the following formula:
wherein, VDriving rollThe edge linear speed of a driving roller for conveying the fiber fabric is shown, and V is the conveying line speed of a cutting position of the fiber fabric; k is a coefficient greater than 1 and is set according to the characteristics of the fiber fabric and the surface material of the drive roll.
Under normal conditions, the linear speed of the fiber fabric at the cutting position 3 is consistent with the unwinding speed of the fiber fabric from the unwinding position, and the consistency of the speed is ensured by pulling the friction force of the fiber fabric through the cutting position 3 on one hand and unwinding the fiber fabric at a constant speed on the other hand, but in the actual working process, when the friction force is not enough to accurately pull the fiber fabric from the unwinding position, the unwinding is not in placeIn order to avoid the risk of cloth surface deviation without increasing the unreeling speed, the front end and the rear end of the ink jet device 2 are respectively provided with the driving roller 1 and the driven roller 4, the edge linear speed of the driving roller 1 is amplified by a coefficient k larger than 1, so that the friction of the driving roller 1 on the fiber fabric replaces the friction of the original cutting part 3 on the fiber fabric, wherein k needs to be set according to the characteristics of the fiber fabric and the surface material of the driving roller 1, the set range is important, and V needs to be ensuredDriving rollIn the case of a speed difference with V, the fabric can still obtain a stable speed without forming an uncontrollable yarn storage situation at the front end of the driving roller 1, that is, a part of power of the driving roller 1 is used for providing reliable forward thrust for the fabric through friction force without causing displacement of the fabric, wherein the displacement of the fabric caused by the rotation of the driving roller 1 is consistent with the displacement of the fabric driven by the cutting part 3.
The fiber fabric between the driving roller 1 and the driven roller 4 is vertically arranged, so that the ink jet device 2 can be installed more conveniently, the wrap angle of the fiber fabric to the driving roller 1 is proper, and the fiber fabric can be better attached to the surface of the driving roller 1 under the action of gravity. In this embodiment, the fabric has only one layer, and the coefficient k changes according to the characteristics of the fabric, and is adjusted according to the different needs of the fabric, so that the acting force of the driving roller 1 with stable surface material on the fabric can effectively provide stable forward thrust to the fabric, but the unnecessary displacement of the acting force is not caused.
Example two
A deviation-preventing micro-tension cloth discharging method for an ink jet device comprises the steps that a driving roller 1 is arranged at the front end of the ink jet device 2, a driven roller 4 is arranged at the rear end of the ink jet device 2, and the unwinding speed of the driving roller 1 is set according to the following formula:
wherein, VDriving rollTo convey the web at the edge line speed of the drive roll,v is the conveying line speed of the cutting position of the fiber fabric; k is a coefficient greater than 1 and is set according to the characteristics of the fiber fabric and the surface material of the drive roll.
In this embodiment, as shown in fig. 1, the number of layers of the same type of fiber fabric is 4, each layer of fiber fabric is conveyed by the respective independent driving roller 1, and V1 of the first driving roller 1 closest to the unwinding part of the fiber fabric is providedDriving rollV of each of the other drive rolls 1 varies depending on the characteristics of the fiber fabric and the surface material of the drive roll 1Driving rollAt V1Driving rollBased on the change of the distance of the unreeling part relative to the fiber fabric.
Wherein first the V1 of the first drive roll 1 is determinedDriving rollThe control difficulty of each subsequent driving roller 1 can be effectively reduced, the speed setting of each subsequent driving roller 1 provides a reference, the preferred scheme of the invention can be used only if the types of each layer of fiber fabric are consistent, and the change aims to ensure the consistency of the transmission speed of each layer of fiber fabric according to different unwinding distances, namely, the unwinding distance is taken into full consideration in the control process of the whole speed.
In this embodiment, the fiber fabric between the driving roller 1 and the driven roller 4 is vertically arranged, the driving roller 1 of each layer of fiber fabric is horizontally arranged in parallel, and the driven roller 4 of the fiber fabric is also horizontally arranged in parallel, so that each layer of fiber fabric can be horizontally stacked and enter, and also horizontally stacked and sent out to the cutting part 3, and meanwhile, the synchronism of the control of the ink jet device 2 can be ensured.
In particular, V of the drive roll 1Driving rollAt V1Driving rollThe larger the distance of the unreeling part relative to the fiber fabric is, the smaller the coefficient k value is. In the preferred embodiment, the influence of the pulling action on the fiber fabric is gradually reduced from the position close to the unwinding position to the position far from the unwinding position, on one hand, the excessive formation of the stored fabric between the driving roller 1 and the cutting position due to the speed difference is avoided, of course, the proper stored fabric as shown in the figure is allowed and is actually existed in the conventional production, and on the other hand, the fiber fabric of each layer also existsThe relative friction force, and the friction force of the fiber fabric at the lowest part is larger than that of the fiber fabric at the upper part, and the fiber fabric at the lower part is farthest from the fiber fabric unwinding part in the arrangement mode of the driving roller 1 and the driven roller 4, so that a smaller coefficient k is required.
Preferably, in order to reduce the difficulty of control, the V1 of the first drive roll 1 is usedDriving rollFor reference, Vn of the n-th driving roll 1 with respect to the unwinding portion of the web is calculated according to the following formulaDriving rollAnd (3) calculating:
wherein VnDriving rollThe edge linear velocity of the nth driving roller relative to the unreeling part of the fiber fabric is shown as k1, the coefficient of the first driving roller is shown as L1, the axial distance of the first driving roller relative to the corresponding unreeling roller is shown as L, and Ln is the axial distance of the nth driving roller relative to the corresponding unreeling roller.
In the above formula, k1 × L1 × V1Driving rollIs partially reflected in V1Driving rollOn the basis of (1) carrying out V of other driving rollsDriving rollAnd V of the other drive rolls 1Driving rollOn the basis, the distance between the driving roller 1 and the unreeling part of the fiber fabric is changed, the speed control of all the driving rollers 1 is simple and easy to implement through the formula, and the actual production process is practical and effective.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The anti-deviation micro-tension cloth discharging method for the ink jet device is characterized in that a driving roller is arranged at the front end of the ink jet device, a driven roller is arranged at the rear end of the ink jet device, and the rotating speed of the driving roller is set according to the following formula:
wherein, VDriving rollThe edge linear speed of a driving roller for conveying the fiber fabric is shown, and V is the conveying line speed of a cutting position of the fiber fabric; k is a coefficient larger than 1 and is set according to the characteristics of the fiber fabric and the surface material of the driving roller;
when the number of the layers of the same type of fiber fabric is more than or equal to 2, the driving rollers of the fiber fabrics in each layer are horizontally arranged in parallel, and the driven rollers of the fiber fabrics are also horizontally arranged in parallel;
v1 of the first drive roll nearest to the unwinding portion of the webDriving rollThe V of other driving rollers is changed according to the characteristics of the fiber fabric and the surface material of the driving rollerDriving rollAt the V1Driving rollBased on the change of the distance of the unreeling part of the fiber fabric;
v of the drive rollDriving rollAt the V1Driving rollThe larger the distance of the unreeling part relative to the fiber fabric is, the smaller the coefficient k value is;
with V1 of the first drive rollDriving rollFor reference, Vn of the n-th driving roll with respect to the unwinding portion of the web is calculated according to the following formulaDriving rollAnd (3) calculating:
wherein VnDriving rollThe edge linear velocity of the nth driving roller relative to the unreeling part of the fiber fabric is shown as k1, the coefficient of the first driving roller is shown as L1, the axial distance of the first driving roller relative to the corresponding unreeling roller is shown as L, and Ln is the thThe axial distance of the n driving rollers relative to the corresponding unwinding rollers.
2. The inkjet device off-tracking-prevention micro-tension cloth discharging method according to claim 1, wherein the fiber fabric between the driving roller and the driven roller is vertically arranged.
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11278713A (en) * | 1998-03-27 | 1999-10-12 | Nec Corp | Paper carrying mechanism |
CN102530624A (en) * | 2011-12-30 | 2012-07-04 | 华中科技大学 | Tension stability control system for film winding conveyance |
CN207467789U (en) * | 2017-11-15 | 2018-06-08 | 上海绿新新材料科技有限公司 | A kind of stripping of transfer paper, cutting, winding device |
JP2018095416A (en) * | 2016-12-14 | 2018-06-21 | 株式会社ヒラノテクシード | Tension cut roll device |
CN109132693A (en) * | 2018-10-19 | 2019-01-04 | 浙江精力玛智能机械有限公司 | A kind of knitting tentering machine and its paving cloth method |
CN109720905A (en) * | 2019-01-25 | 2019-05-07 | 蔡小蝶 | It unreels splicing tension control method and one kind unreels material receiving mechanism |
CN110820299A (en) * | 2019-11-22 | 2020-02-21 | 常州市新创智能科技有限公司 | Marking method for distinguishing wound fabric cut pieces |
-
2020
- 2020-03-25 CN CN202010220356.1A patent/CN111361307B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11278713A (en) * | 1998-03-27 | 1999-10-12 | Nec Corp | Paper carrying mechanism |
CN102530624A (en) * | 2011-12-30 | 2012-07-04 | 华中科技大学 | Tension stability control system for film winding conveyance |
JP2018095416A (en) * | 2016-12-14 | 2018-06-21 | 株式会社ヒラノテクシード | Tension cut roll device |
CN207467789U (en) * | 2017-11-15 | 2018-06-08 | 上海绿新新材料科技有限公司 | A kind of stripping of transfer paper, cutting, winding device |
CN109132693A (en) * | 2018-10-19 | 2019-01-04 | 浙江精力玛智能机械有限公司 | A kind of knitting tentering machine and its paving cloth method |
CN109720905A (en) * | 2019-01-25 | 2019-05-07 | 蔡小蝶 | It unreels splicing tension control method and one kind unreels material receiving mechanism |
CN110820299A (en) * | 2019-11-22 | 2020-02-21 | 常州市新创智能科技有限公司 | Marking method for distinguishing wound fabric cut pieces |
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