CN103072369B - The paper wood conveying device of multicolour press - Google Patents
The paper wood conveying device of multicolour press Download PDFInfo
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- CN103072369B CN103072369B CN201310029171.2A CN201310029171A CN103072369B CN 103072369 B CN103072369 B CN 103072369B CN 201310029171 A CN201310029171 A CN 201310029171A CN 103072369 B CN103072369 B CN 103072369B
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Abstract
The invention discloses a kind of paper wood conveying device of multicolour press, relate to printing machinery technical field, comprise unwinding unit, this unwinding unit has to be contained in and unreels let off roll in frame and be located at described let off roll side, by unreel drive unit connect drive, unreel belt, paper wood output channel be provided with by multiple fixing guide roller and be contained in a paper wood tensioning apparatus being connected with the dancer on the swing arm of tension spring and forming; Unreel drive unit and have a motor controlled by variable-frequency governor, the input of variable-frequency governor is connected to the sensor that is detected described swing arm turned position; In paper wood output channel, the downstream position being positioned at described paper wood tensioning apparatus is equipped with two compression rolls of crimping mutually; The upstream that paper wood output channel is positioned at two compression rolls is provided with atomizing humidifier; A compression roll is had to be connected with the output shaft of a speed regulator in the middle of two compression rolls.Ensure that the accuracy of constant, the steady and tension force of tension force in paper tape course of conveying.
Description
Technical field
The present invention relates to printing machinery technical field, the paper tape conveying device of especially a kind of softly low fixation multilayer web press.
Background technology
In order to realize web printing work, paper tape must keep smooth before entering printing equipment, level of tightness is moderate, keep certain paper feed tension force, and in printing process, the tension force needs of paper tape are invariable suitable with size.When web tension is excessive, printing net-point can produce certain distortion, paper tape longitudinally crumpling, even transverse breakage occur, when web tension is too small, can cause that trace is fuzzy, register trouble, transversal fold; When web tension is unstable, also the printing troubles such as register trouble, ghost image, longitudinal gauffer can be caused.Control the constant and stationarity that the accuracy of tension force just can ensure paper tape tension force in conveying, and for the base material of soft, easy stretching, multilayer, light basis weight, more difficultly complete multicolor overprint exactly.This situation, generally needs compacting, otherwise paper tape can be caused to waste, and affects machine run efficiency.The paper feed stretching process of prior art unreels part by being arranged on, the printing of multiple unit, the driving of the roller of the multipair synchronous axial system of rolling part has come, in these deflector rolls, there is the just carrying in the running of paper tape of a lot of deflector roll, guiding and spreading, these deflector rolls in printing element are the driven roll of not drive, with rotation when being moved by paper tape, deflector roll work does not affect the change of paper tape STRESS VARIATION or length, the tension stability of paper tape in print zone can not be ensured, therefore, can cause between paper tape each printing element in print zone and telescopic variation occurs, cause register trouble true, ghost image, the printing troubles such as longitudinal gauffer, affect the quality of production.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of paper wood conveying device of multicolour press, and it is unstable and affect the problem of printing quality that the paper wood conveying device of this multicolour press mainly solves soft, easy stretching paper wood length in printing process.
In order to solve the problem, the technical solution used in the present invention is: the paper wood conveying device of this multicolour press, include unwinding unit, this unwinding unit have be contained in unreel let off roll in frame be located at described let off roll side by unreel drive unit be connected drive unreel belt, the paper wood output channel of described unwinding unit be provided with by multiple fixing guide roller and be contained in a paper wood tensioning apparatus being connected with the dancer on the swing arm of tension spring and forming; The described drive unit that unreels has a motor controlled by variable-frequency governor, and the input of described variable-frequency governor is connected to the sensor that is detected described swing arm turned position; Two compression rolls of crimping mutually the paper wood transfer passage in the paper wood conveying downstream after described unwinding unit are equipped with; Paper wood transfer passage between described unwinding unit and described two compression rolls is provided with atomizing humidifier; A compression roll is had to be connected with the output shaft of a speed regulator in the middle of described two compression rolls; Described tension spring is connected with the tension spring adjusting device that regulates this tension spring tensioning degree; Described tension spring adjusting device has one to hang spring-loaded pulley, unreels frame or unreel on parts that frame is fixedly connected with described described in the mounting bracket of this pulley is contained in by adjusting screw(rod); Described tension spring is around on described pulley.
In the paper wood conveying device technical scheme of above-mentioned multicolour press, technical scheme can also be more specifically: described unwinding unit has multiple, and two compression rolls of described atomizing humidifier and each unwinding unit are located in the section of converging of unwinding unit paper wood transfer passage described in each.
Further: have a compression roll to be contained in a movable roller frames in the middle of described two compression rolls, described roller frames is contained in the hole of roller frames bearing by guide post, between described roller frames and described roller frames bearing, holddown spring is housed.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, adopt dancer to carry out pre-stretch-draw to paper wood paper feed tension force, to paper tape sizing, eliminate the vibration that paper tape produces due to pulling force fluctuation, ensure paper feed tensions constant, steadily, effectively control the accuracy of tension force.
2, to humidification be carried out before paper tape pressurization, better ensure paper tape pressurization fixed effect.
3, paper tape pressurized treatments, is extruded mutually by two compression rolls, changes and strengthen the adhesion of paper wood Filament-wound Machine, improves the tightness of bonding force and paper tape between ply of paper, reduces retractility, improves planarization and the slickness on paper tape surface; Thus improve performance of undertaking the printing of, guarantee printing quality, improve product feel.
4, before ensure that printing, paper tape has certain paper feed tension force, has coordinated printing zone tension force to regulate and control, ensure that the tension stability of printing machine in printing element interval, and the tension force finally completing sheet transfer system controls.
Accompanying drawing explanation
Fig. 1 is the paper wood transport conveyor constructions schematic diagram of multicolour press.
Fig. 2 is A-A sectional view of Fig. 1.
Fig. 3 is the K direction view of Fig. 1.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is 4 unwinding unit schematic diagrames of the paper wood conveying device that this paper method for multicolor printing uses.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
The paper wood conveying device of the multicolour press shown in Fig. 1, Fig. 5, before printing, carry out stretch-draw compacting to paper wood, it comprises 4 identical unwinding unit B, C, D, E, atomizing humidifier 6 and compression roll 4,5, each unwinding unit comprises unwinding device, paper wood tensioning apparatus, deviation correcting device, unwinding device is as Fig. 1, as shown in Figure 2, include be contained in unreel let off roll 18 in frame 30 be located at let off roll 18 side by unreel drive unit be connected drive unreel belt 15, unreel drive unit and have a motor controlled by variable-frequency governor 19 11, motor 11 is fixed on and unreels in frame 30, the output shaft of motor 11 is connected with driving wheel 36, driving wheel 36 is connected with synchronous pulley 34 by Timing Belt 35, wheel shaft and the driving shaft 33 of synchronous pulley 34 are socketed, driving shaft 33 is hinged with defeated paper frame 14, defeated paper frame 14 two ends are respectively equipped with two cydariform belt pulleys 31, 32, driving shaft 33 connects cydariform belt pulley 32, cydariform belt pulley 32 is connected by unreeling belt 15 with cydariform belt pulley 31, unreel when belt 15 moves and drive paper feed, defeated paper frame 14 lower end is connected with cylinder 17, unreels by the size adjustable of adjusting cylinders 17 air pressure the pressure that belt 15 is applied to paper wood 16 surface.As shown in Figure 1, unreeling multiple guide rollers frame 30 being provided with and forming paper wood output channel, fixing guide roller 21, 23, 24 and be contained in a dancer 22 be connected with on the swing arm 25 of tension spring 20 and constitute paper wood tensioning apparatus, dancer 22 is arranged at one end of swing arm 25, the other end and the sector gear 28 of swing arm 25 are affixed, and can swing around sector gear axle center 29, one end that swing arm 25 is equipped with dancer 22 is connected with tension spring 20, tension spring 20 is connected with the tension spring adjusting device that regulates tensioning degree, tension spring adjusting device has a pulley 12 mounting tension spring 20, the mounting bracket of pulley 12 is contained in by adjusting screw(rod) 13 and unreels in frame 30, tension spring 20 is around on pulley 12, when using printable fabric different, rotatable adjusting screw(rod) 13 regulates the pulling force of tension spring, the tension force of adjustment paper tape.When paper tape pulling force changes, dancer 22 will move up and down, thus absorbs vibration.In other embodiments, the mounting bracket of pulley 12 is contained in by adjusting screw(rod) 13 and unreels on parts that frame 30 is fixedly connected with.Sector gear 28 and the pinion 27 be arranged on the sensor 26 of wobble detection bar 25 turned position are connected with a joggle, and sensor 26 output is connected on the input of the variable-frequency governor 19 controlling motor speed; In paper tape course of conveying, during tension variation, dancer 22 is under the acting in conjunction of tension spring 20, swing arm 25 is driven to swing around sector gear axle center 29, drive pinion 27 to rotate a position, give sensor 26 1 signals, this signal is transported to variable-frequency governor 19 drive motor 11 and rotates simultaneously, thus change chart drive speed, realize pre-cable tensios control.After pre-stretch-draw, paper tape enters deviation correcting device after walking around guide roller 24, this deviation correcting device has a correction frame 10 that can rotate around back shaft, when there is skew in paper tape, photoelectric sensor 7 produces and outputs signal to deviation correcting device 8, and control linear driver 9 drives correction frame 10 to rotate to paper tape edge and gets back to initial position.The paper tape of 4 unwinding units B, C, D, E exports respectively after correction, and the paper tape of output converges superposition.Upstream paper wood output channel being positioned at two compression rolls 4,5 is provided with atomizing humidifier 6, and carry out humidification to the paper tape after stretch-draw superposition, the moisture content after paper wood humidification is 5% ~ 7%.A pair compression roll 4,5 in paper wood output channel as shown in Figure 3 and Figure 4 crimps the paper tape after superposition mutually, makes paper tape compound.Compression roll 4 is contained in a movable roller frames 43, and roller frames 43 is contained in the hole of roller frames bearing 3 by guide post 1, and holddown spring 2 is housed between roller frames 43 and roller frames bearing 3; Rotary steering bar 1, passes to roller frames 43 by holddown spring 2 power, and complete compression roll 4,5 exerting pressure to superposition paper tape, the dynamics of compacting counts 100,000 ns/m ~ 120,000 ns/m with the width of paper wood; Compression roll 5 is affixed with synchronous pulley 37, synchronous pulley 37 is connected with synchronous pulley 40 by Timing Belt 38, synchronous pulley 40 is fixedly connected with speed regulator 39 output shaft, the power shaft of speed regulator 39 to be connected with printing machine driven roller 42 by shaft coupling 41 and to keep same rotating speed, by the rotating speed of adjustment speed regulator 39 output shaft and the speed discrepancy of printing machine driven roller 42, the tensioning degree of the paper wood after to compacting compound can be controlled.
Roll web is arranged on let off roll 18, wears paper along paper wood output channel.Before paper wood stretch-draw, first tensile strength test being carried out to this batch of paper wood, measures the tension stress of this paper wood--in percentage elongation characteristic curve, the tension values of the increment maximum of the corresponding tension force of unit extension amount is stretch-draw referential data.Control cylinder 17 makes to unreel belt 15 and is close to paper roll surface, unreels belt 15 under the driving of motor 11, drives paper roll to open, realize paper feed; Paper wood carries out pre-stretch-draw by paper wood tensioning apparatus, and the pretensioned value of thrust of paper wood is not less than described stretch-draw referential data; The paper tape of stretch-draw carries out converging superposition after deviation correcting device correction, the paper tape after superposition carries out humidification through atomizing humidifier 6, then paper tape compression roll 4, the 5 compacting compound by humidification; In order to coordinate the regulation and control of printing zone tension force, moment is delivered to compression roll 4,5 from printing machine driven roller 42, regulate speed regulator 39 can change the rotating speed of compression roll 4,5, rotating speed and the printing machine rolling draught line speed of such compression roll 4,5 produce a differential, keep the stable of this differential just to keep the tension stability of printing machine in printing element interval; Simultaneously, change the rotating speed of compression roll 4,5, sensing element dancer 22 swing arm will move up and down, because sheet transfer system is a closed-loop system, this signal will feed back to rotating speed variable-frequency governor 19 regulating and controlling motor 11, affect sheet transfer system tension variation, the tension force finally completing sheet transfer system controls.Paper wood exports from compression roll 4,5 and enters printing zone, and the paper wood of printing element to tension stability prints, and its chromatography is accurate, and printing quality is high.
Claims (3)
1. the paper wood conveying device of a multicolour press, include unwinding unit, this unwinding unit have be contained in unreel let off roll (18) in frame (30) be located at described let off roll (18) side by unreel drive unit be connected drive unreel belt (15), it is characterized in that: be provided with by multiple fixing guide roller (21,23,24) in the paper wood output channel of described unwinding unit and be contained in a paper wood tensioning apparatus being connected with the dancer (22) on the swing arm (25) of tension spring (20) and forming; The described motor (11) unreeling drive unit and have to be controlled by variable-frequency governor (19), the input of described variable-frequency governor (19) is connected to the sensor (26) that is detected described swing arm (25) turned position; Two compression rolls (4,5) of crimping mutually the paper wood transfer passage in the paper wood conveying downstream after described unwinding unit are equipped with; Paper wood transfer passage between described unwinding unit and described two compression rolls (4,5) is provided with atomizing humidifier (6); A compression roll (5) is had to be connected with the output shaft of a speed regulator (39) in the middle of described two compression rolls (4,5); Described tension spring (20) is connected with the tension spring adjusting device that regulates this tension spring (20) tensioning degree; Described tension spring adjusting device has one to hang spring-loaded pulley (12), unreels frame (30) or unreel on parts that frame (30) is fixedly connected with described described in the mounting bracket of this pulley (12) is contained in by adjusting screw(rod) (13); Described tension spring (20) is around on described pulley (12).
2. the paper wood conveying device of multicolour press as claimed in claim 1, it is characterized in that: described unwinding unit has multiple, two compression rolls (4,5) of described atomizing humidifier (6) and each unwinding unit are located in the section of converging of unwinding unit paper wood transfer passage described in each.
3. the paper wood conveying device of multicolour press as claimed in claim 1 or 2, it is characterized in that: in the middle of described two compression rolls (4,5), have a compression roll (4) to be contained in a movable roller frames (43), described roller frames (43) is contained in the hole of roller frames bearing (3) by guide post (1), and holddown spring (2) is housed between described roller frames (43) and described roller frames bearing (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310029171.2A CN103072369B (en) | 2013-01-25 | 2013-01-25 | The paper wood conveying device of multicolour press |
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| CN201310029171.2A CN103072369B (en) | 2013-01-25 | 2013-01-25 | The paper wood conveying device of multicolour press |
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| CN103072369A CN103072369A (en) | 2013-05-01 |
| CN103072369B true CN103072369B (en) | 2015-12-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979347A (en) * | 2014-06-03 | 2014-08-13 | 福建培新机械制造实业有限公司 | Napkin making machine |
| CN105668289B (en) * | 2016-02-25 | 2017-08-25 | 宁波欣达印刷机器有限公司 | A kind of pre-setting method of the initial coil diameter of the coiler device of printing machine |
| CN106006117A (en) * | 2016-06-18 | 2016-10-12 | 王金根 | Paper unwinding machine with double floating rolls |
| CN106006146A (en) * | 2016-06-18 | 2016-10-12 | 王金根 | Rewinding machine with surface drive function |
| CN115179650B (en) * | 2021-11-18 | 2023-10-20 | 北人智能装备科技有限公司 | Remote accurate overprinting precision adjusting device and adjusting method |
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