CN103072369A - Paper conveying device of multicolor press - Google Patents
Paper conveying device of multicolor press Download PDFInfo
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- CN103072369A CN103072369A CN2013100291712A CN201310029171A CN103072369A CN 103072369 A CN103072369 A CN 103072369A CN 2013100291712 A CN2013100291712 A CN 2013100291712A CN 201310029171 A CN201310029171 A CN 201310029171A CN 103072369 A CN103072369 A CN 103072369A
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- paper wood
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Abstract
The invention discloses a paper conveying device of a multicolor press, which relates to the technical field of printing machinery. The paper conveying device comprises a unwinding unit, wherein the unwinding unit is provided with an unwinding roller which is installed on an unwinding frame and a unwinding belt which is arranged on one side of the unwinding roll and driven by an unwinding driving device through connection; a paper tensioning device composed of a plurality of fixing guide rolls and floating rollers is arranged on a paper conveying channel, wherein the floating rolls are installed on one oscillating rod connected with a tensioning spring; the unwinding driving device is provided with a motor controlled by a variable-frequency governor, and an input end of the variable-frequency governor is connected with a sensor used for detecting the rotating position of the oscillating rod; two compressing rollers which are mutually compressed are installed in a position of the paper conveying channel, which is positioned downstream the paper tensioning device; an atomizing humidifier is arranged in a position of the paper conveying channel, which is positioned upstream the two compressing rollers; and one of the two compressing rolls is connected with an output shaft of the governor. Constant and stable tension and the precision of the tension are guaranteed in a paper conveying process.
Description
Technical field
In order to realize web printing work, necessary maintenance is smooth before entering printing equipment, level of tightness is moderate, keep certain paper feed tension force for paper tape, and the tension force of paper tape need to be invariable and big or small suitable in printing process.When web tension was excessive, printing net-point can produce certain distortion, and paper tape is vertically crumpling even occur transverse breakage, when web tension is too small, can cause that trace is fuzzy, register trouble, transversal fold; When web tension is unstable, also can cause the printing troubles such as register trouble, ghost image, vertical gauffer.The accuracy of control tension force just can guarantee the constant and stationarity of paper tape tension force in conveying, and for soft, easy stretching, multilayer, low quantitative base material, the more difficult multicolor overprint of finishing exactly.This situation generally needs compacting, otherwise can cause the paper tape waste, affects machine run efficient.The paper feed stretching process of prior art is to unreel part by being installed in, the printing of a plurality of unit, the driving of many rollers to synchronous rotation of rolling part is finished, in these deflector rolls, the just carrying in the running of paper tape of a lot of deflector rolls is arranged, guiding and spreading, these deflector rolls in printing element are the not driven roll of drive, when being moved by paper tape with rotation, deflector roll work does not affect the variation of paper tape STRESS VARIATION or length, can not guarantee that paper tape is at the tension stability of print zone, therefore, can cause paper tape between each printing element on the print zone, telescopic variation to occur, cause register trouble true, ghost image, the printing troubles such as vertical gauffer affect the quality of production.
Summary of the invention
Technical problem to be solved by this invention provides a kind of paper wood conveying device of multicolour press, and that the paper wood conveying device of this multicolour press mainly solves is soft, the paper wood length in printing process that easily stretches is unstable and affect the problem of printing quality.
In order to address the above 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 has and is contained in the let off roll that unreels on the frame and is connected described let off roll one side and connects the belt that unreels that drives by unreeling drive unit, is provided with by a plurality of fixing guide rollers and is contained in the paper wood tensioning apparatus that a dancer on the swing arm that is connected with tension spring consists of in the paper wood output channel of described unwinding unit; The described drive unit that unreels has one by the motor of variable-frequency governor control, and the input of described variable-frequency governor is connected to a sensor that detects described swing arm turned position; Two compression rolls of mutual crimping are housed on the paper wood transfer passage in the paper wood conveying downstream behind the described unwinding unit; Paper wood transfer passage between described unwinding unit and described two compression rolls is provided with atomizing humidifier; There is a compression roll to be connected with the output shaft of a speed regulator in the middle of described two compression rolls.
In the paper wood conveying device technical scheme of above-mentioned multicolour press, technical scheme can also be more specifically: described tension spring is connected with a tension spring adjusting device of regulating this tension spring tensioning degree; Described tension spring adjusting device has one to hang spring-loaded pulley, and the mounting bracket of this pulley is contained in by adjusting screw(rod) and describedly unreels frame or unreel on the parts that frame is fixedly connected with described; Described tension spring is on described pulley.
Further: described unwinding unit has a plurality of, and two compression rolls of described atomizing humidifier and described each unwinding unit are located in the section of converging of each described unwinding unit paper wood transfer passage.
Further: have a compression roll to be contained on the roller frames of an activity in the middle of described two compression rolls, described roller frames is contained in by guide post in the hole of roller frames bearing, between described roller frames and described roller frames bearing holddown spring is housed.
Owing to having adopted technique scheme, the present invention compared with prior art has following beneficial effect:
1, adopts dancer that paper wood paper feed tension force is carried out pre-stretch-draw, to the paper tape typing, eliminated paper tape owing to the vibration that the pulling force fluctuation produces, guarantee that the paper feed pulling force is constant, steady, effectively controlled the accuracy of tension force.
2, to carry out humidification before the paper tape pressurization, better guarantee paper tape pressurization fixed effect.
3, paper tape pressurized treatments is pushed mutually by two compression rolls, changes and strengthened the adhesion of paper wood Filament-wound Machine, has improved the tightness of bonding force and paper tape between the ply of paper, reduces retractility, has improved planarization and the slickness on paper tape surface; Thereby improved the performance of undertaking the printing of, guaranteed printing quality, improved the product feel.
4, guaranteed that the front paper tape of printing has certain paper feed tension force, cooperated the regulation and control of printing zone tension force, guaranteed the tension stability of printing machine in the printing element interval, finally finished the tension force control of sheet transfer system.
Description of drawings
Fig. 1 is the paper wood transport conveyor constructions schematic diagram of multicolour press.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is that the K of Fig. 1 is to view.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is 4 unwinding unit schematic diagrames of the employed paper wood conveying device of method for multicolor printing.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing embodiment:
Such as the paper wood conveying device of Fig. 1, multicolour press shown in Figure 5, be used for before the printing paper wood being carried out the stretch-draw compacting, it comprises 4 identical unwinding unit B, C, D, E, atomizing humidifier 6 and compression roll 4,5; Each unwinding unit comprises unwinding device, the paper wood tensioning apparatus, deviation correcting device, unwinding device such as Fig. 1, as shown in Figure 2, include be contained in the let off roll 18 that unreels on the frame 30 be connected let off roll 18 1 sides by unreel drive unit connect drive unreel belt 15, unreel drive unit and have one by the motor 11 of variable-frequency governor 19 controls, motor 11 is fixed in and unreels on the 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, the wheel shaft of synchronous pulley 34 and driving shaft 33 sockets, be hinged with defeated paper frame 14 on the driving shaft 33, 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, drives paper feed when unreeling belt 15 and moving; Defeated paper frame 14 lower ends are connected with cylinder 17, and the big or small capable of regulating by adjusting cylinders 17 air pressure unreels the pressure that belt 15 is applied to paper wood 16 surfaces.As shown in Figure 1, be provided with a plurality of guide rollers that form the paper wood output channel unreeling frame 30, fixing guide roller 21,23,24 and be contained in a dancer 22 on the swing arm 25 that is connected with tension spring 20 and consisted of the paper wood tensioning apparatus, dancer 22 is arranged at an end of swing arm 25, the other end of swing arm 25 and sector gear 28 are affixed, and can be around the sector gear axle center 29 swing, the end that swing arm 25 is equipped with dancer 22 is connected with tension spring 20, tension spring 20 is connected with a tension spring adjusting device of regulating tensioning degree, the tension spring adjusting device has a pulley 12 that mounts tension spring 20, the mounting bracket of pulley 12 is contained in by adjusting screw(rod) 13 and unreels on the frame 30, and tension spring 20 is on pulley 12; When using printable fabric not simultaneously, rotatable adjusting screw(rod) 13 is regulated the pulling force of tension spring, adjusts the tension force of paper tape.When the paper tape pulling force changed, dancer 22 will move up and down, thereby absorbed vibration.In other embodiments, the mounting bracket of pulley 12 can by adjusting screw(rod) 13 be contained in unreel the parts that frame 30 is fixedly connected with on.Sector gear 28 is connected with a joggle with pinion 27 on the sensor 26 that is installed in wobble detection bar 25 turned positions, and sensor 26 outputs are connected on the input of the variable-frequency governor 19 of control motor speed; In the paper tape course of conveying, during tension variation, dancer 22 is under the acting in conjunction of tension spring 20, drive swing arm 25 29 swings around the sector gear axle center, drive pinion 27 and rotate a position, be transported to variable-frequency governor 19 drive motors 11 for simultaneously 26 1 signals of sensor, this signal and rotate, thereby the change chart drive speed is realized pre-stretch-draw 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 skew occurs in paper tape, photoelectric sensor 7 produces and outputs signal to deviation correcting device 8, and control Linear actuator 9 drive correction framves 10 rotate to the paper tape edge and get back to initial position.The paper tape of 4 unwinding unit B, C, D, E is respectively output after correction, and the paper tape of output converges stack.Be positioned at two compression rolls 4 on the paper wood output channel, 5 upstream is provided with atomizing humidifier 6, and the paper tape after the stretch-draw stack is carried out humidification, the moisture content behind the paper wood humidification is 5%～7%.Paper tape after a pair of compression roll 4 on the paper wood output channel as shown in Figure 3 and Figure 4, the 5 mutual crimping stacks makes paper tape compound.Compression roll 4 is contained on the roller frames 43 of an activity, and roller frames 43 is contained in by guide post 1 in the hole of roller frames bearing 3, between roller frames 43 and roller frames bearing 3 holddown spring 2 is housed; Rotary steering bar 1 passes to roller frames 43 to power by holddown spring 2, finishes exerting pressure of compression roll 4,5 pairs of stack paper tapes, and the dynamics of compacting is counted 100,000 Ns/rice～120,000 Ns/rice 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 shafts, the power shaft of speed regulator 39 is connected and keeps same rotating speed by shaft coupling 41 with printing machine driven roller 42, rotating speed by regulating speed regulator 39 output shafts and the speed discrepancy of printing machine driven roller 42 can be controlled the tensioning degree of the paper wood after compound to compacting.
Roll web is installed on the let off roll 18, wears paper along the paper wood output channel.Before paper wood stretch-draw, first this batch paper wood is carried out tensile strength test, measure the tension stress of this paper wood--the peaked tension force numerical value of increment of the corresponding tension force of unit extension amount is the stretch-draw referential data in the percentage elongation characteristic curve.Control cylinder 17 makes and unreels belt 15 and be close to the paper roll surface, unreels belt 15 and drives paper roll open under the driving of motor 11, realizes paper feed; Paper wood carries out pre-stretch-draw by the paper wood tensioning apparatus, and the pretensioned value of thrust of paper wood is not less than described stretch-draw referential data; Stretch-draw paper tape after deviation correcting device correction, converge stack, the paper tape after the stack carries out humidification through atomizing humidifier 6, again with humidification paper tape compound with compression roll 4,5 compactings; In order to cooperate 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 and can change compression roll 4,5 rotating speed, compression roll 4,5 rotating speed and printing machine rolling draught line speed produce a differential like this, keep the stable of this differential just to keep printing machine at the tension stability in printing element interval; Simultaneously, change compression roll 4,5 rotating speed, 22 swing arms of sensing element dancer will move up and down, because sheet transfer system is a closed-loop system, this signal will feed back to the rotating speed of regulation and control motor 11 on the variable-frequency governor 19, affect the sheet transfer system tension variation, finally finish the tension force control of sheet transfer system.Paper wood enters printing zone from compression roll 4,5 outputs, and printing element prints the paper wood of tension stability, and its chromatography is accurate, and printing quality is high.
Claims (5)
1. the paper wood conveying device of a multicolour press, include unwinding unit, this unwinding unit have be contained in the let off roll (18) that unreels on the frame (30) be connected described let off roll (18) one sides by unreel drive unit connect drive unreel belt (15), it is characterized in that: be provided with by a plurality of fixing guide rollers (21,23,24) and be contained in the paper wood tensioning apparatus of dancer (a 22) formation on the swing arm (25) that is connected with tension spring (20) in the paper wood output channel of described unwinding unit; The described drive unit that unreels has one by the motor (11) of variable-frequency governor (19) control, and the input of described variable-frequency governor (19) is connected to a sensor (26) that detects described swing arm (25) turned position; Two compression rolls (4,5) of mutual crimping are housed on the paper wood transfer passage in the paper wood conveying downstream behind the described unwinding unit; Paper wood transfer passage between described unwinding unit and described two compression rolls (4,5) is provided with atomizing humidifier (6); There is a compression roll (5) to be connected with the output shaft of a speed regulator (39) in the middle of described two compression rolls (4,5).
2. the paper wood conveying device of multicolour press as claimed in claim 1 is characterized in that: described tension spring (20) is connected with a tension spring adjusting device of regulating this tension spring (20) tensioning degree; Described tension spring adjusting device has one to hang spring-loaded pulley (12), and the mounting bracket of this pulley (12) is contained in by adjusting screw(rod) (13) and describedly unreels frame (30) or unreel on the parts that frame (30) is fixedly connected with described; Described tension spring (20) is on described pulley (12).
3. the paper wood conveying device of multicolour press as claimed in claim 1 or 2, it is characterized in that: described unwinding unit has a plurality of, and two compression rolls (4,5) of described atomizing humidifier (6) and described each unwinding unit are located in the section of converging of each described unwinding unit paper wood transfer passage.
4. the paper wood conveying device of multicolour press as claimed in claim 1 or 2, it is characterized in that: have a compression roll (4) to be contained on the roller frames (43) of an activity in the middle of described two compression rolls (4,5), described roller frames (43) is contained in the hole of roller frames bearing (3) by guide post (1), between described roller frames (43) and described roller frames bearing (3) holddown spring (2) is housed.
5. the paper wood conveying device of multicolour press as claimed in claim 3, it is characterized in that: have a compression roll (4) to be contained on the roller frames (43) of an activity in the middle of described two compression rolls (4,5), described roller frames (43) is contained in the hole of roller frames bearing (3) by guide post (1), between described roller frames (43) and described roller frames bearing (3) holddown spring (2) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310029171.2A CN103072369B (en) | 2013-01-25 | 2013-01-25 | The paper wood conveying device of multicolour press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310029171.2A CN103072369B (en) | 2013-01-25 | 2013-01-25 | The paper wood conveying device of multicolour press |
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| CN103072369A true CN103072369A (en) | 2013-05-01 |
| CN103072369B CN103072369B (en) | 2015-12-09 |
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| CN201310029171.2A Active CN103072369B (en) | 2013-01-25 | 2013-01-25 | The paper wood conveying device of multicolour press |
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Cited By (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 |
| CN105668289A (en) * | 2016-02-25 | 2016-06-15 | 宁波欣达印刷机器有限公司 | Presetting method for initial winding diameter of winding device of printer |
| 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 |
| CN115179650A (en) * | 2021-11-18 | 2022-10-14 | 北人智能装备科技有限公司 | Device and method for remotely and accurately adjusting overprinting precision |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN115179650A (en) * | 2021-11-18 | 2022-10-14 | 北人智能装备科技有限公司 | Device and method for remotely and accurately adjusting overprinting precision |
| 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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