CN201399942Y - Printing paper path with constant tensile force in printing system of rotary offset machine - Google Patents
Printing paper path with constant tensile force in printing system of rotary offset machine Download PDFInfo
- Publication number
- CN201399942Y CN201399942Y CN2009200400437U CN200920040043U CN201399942Y CN 201399942 Y CN201399942 Y CN 201399942Y CN 2009200400437 U CN2009200400437 U CN 2009200400437U CN 200920040043 U CN200920040043 U CN 200920040043U CN 201399942 Y CN201399942 Y CN 201399942Y
- Authority
- CN
- China
- Prior art keywords
- printing
- printing unit
- tension
- wallboard
- constant
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The utility model relates to a printing paper path with constant tensile force in printing system of rotary offset machine, which comprises a paper feeding mechanism, a first printing unit, a second printing unit, a third printing unit, a fourth printing unit and a hinge mechanism; the utility model is characterized in that a front constant tension mechanism is arranged on a wallboard through a bearing component before the front half paper of the first printing unit enters a printing roller, a rear constant tension mechanism is arranged on a wallboard through a bearing component after the rearhalf paper of the fourth printing unit leaves the printing roller. The front constant tension mechanism and the rear constant tensile force mechanism respectively comprise an intermediate gear, a transmission gear, a transmission surface wallboard, a tension roller, a clutch shaft, a swing arm for controlling a press wheel, a tension press wheel, an operation surface wallboard and a cylinder component. The utility model adopts mechanical front and rear tension mechanisms to control constant tensile force so that the whole printing and overprinting process can be finished under constant papertensile force, and the accidental factors are avoided; meanwhile, printed products are ensured to have correct overprinting process.
Description
Technical field
The utility model relates to the printing paper road that has constant-tension in a kind of B-B rotary offset machine print system, for the printing paper road of printing unit provides constant-tension to guarantee chromatography mechanism accurately.
Background technology
Present domestic B-B type lithographic plate rotary offset machine, vertical or horizontal rotary offset machine is not established constant tension mechanism.Except being equipped with the front and back tension system of specialty on the part B-B type rotary offset machine of import and the domestic commerce rotary offset machine,, cost an arm and a leg though this system is respond well.Domestic B-B type lithographic plate rotary offset machine generally is not equipped with use.Therefore domestic B-B type lithographic plate rotary offset machine in actual use, no matter how high equipment precision is, how good adjust, all more or less, the either large or small problem that has register trouble, this is difficult to be avoided.The problem of register trouble generally can be divided into irregular, regular two classes.Get rid of machinery and some accidentalia, the inaccurate reason of irregular cover generally is because the unstable paper tension that paper-feeding mechanism provides causes, and domestic and international existing paper-feeding mechanism all can only provide macroeconomic stability, the unsettled paper tension of microcosmic.It is inaccurate that the unsettled paper tension of this microcosmic causes the irregular cover of chromatography just.And that second class is clocklike overlapped is inaccurate, be because the variation of the printing paper road tension force that the difference of the rubber roller diameter error of each printing unit of participation chromatography and squeegee pressure adjustment causes, pass through the effect of the breach on the rubber roller again, cause inner each section tension force in whole printing paper road to form cyclically-varying clocklike, be in particular in to overlap to stamp and produce cyclically-varying clocklike, participate in chromatography if any 4 units, 4 printing chromatographys are forward one by one, after 4 printing chromatographys are leaned on one by one, continuous circulation change.Accurate in order to guarantee chromatography, promptly each participates in the unit of printing, and cover is imprinted on same position, just is necessary for the printing unit constant tension stable printing paper road is provided.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby provide the printing paper road that has constant-tension in a kind of rotary offset machine print system, tension mechanism is controlled constant-tension before and after adopting a cover, can and keep constant paper road tension force in the inner generation of print system, making whole printing chromatography process is to finish under constant paper tension situation, general unexpected factor can be got rid of, and the correct printing of chromatography can be guaranteed to print out.
The technical scheme that provides according to the utility model, the printing paper road that has constant-tension in the rotary offset machine print system comprises paper-feeding mechanism, the first printing unit, the second printing unit, the 3rd printing unit, the 4th printing unit and folding mechanism, the magnetic powder brake that is arranged on the paper-feeding mechanism connects potentiometer by electric wire, potentiometer is by low friction cylinder and oscillating roller control, the first printing unit, the second printing unit, the 3rd printing unit, the 4th printing unit and folding mechanism connect by power transmission shaft successively, the power of power transmission shaft is from motor, belt wheel, gear, gear is installed on the power transmission shaft, gear is connected with motor by belt wheel, and intermeshing bevel gear, power transmission shaft is parallel with driving face wallboard and operating surface wallboard and vertical with the rubber roll of each printing unit, feature is by bearing assembly preceding constant tension mechanism to be set on the wallboard of first half paper before entering printing roller of first printing unit, by bearing assembly the back constant tension mechanism is set on the wallboard after the latter half of paper of the 4th print couple leaves printing roller.
Constant tension mechanism and back constant tension mechanism include swing arm, tension force pinch roller, operating surface wallboard and the cylinder assembly of carrier gear, travelling gear, driving face wallboard, jockey pulley, clutch shaft, control pinch roller before described.Jockey pulley utilizes bearing assembly to be installed on driving face wallboard and the operating surface wallboard, jockey pulley is installed travelling gear and carrier gear by driving face wallboard end, carrier gear and travelling gear engagement, the clutch shaft that is parallel to the jockey pulley below also is installed on driving face wallboard and the operating surface wallboard, the swing arm of two groups of control pinch rollers is installed on clutch shaft, in the swing arm of control pinch roller the tension force pinch roller is installed, the swing arm of control pinch roller can be on clutch shaft axial adjustment, fit with jockey pulley in tension force pinch roller surface.
Described jockey pulley, clutch shaft, tension force pinch roller connect cylinder assembly at clutch shaft by operating surface wallboard end not at grade.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Adopt the mechanical front and back of cover tension mechanism to control constant-tension, can and keep constant paper road tension force in the inner generation of print system, making whole printing chromatography process is to finish under constant paper tension situation, general unexpected factor can be got rid of, and the correct printing of chromatography can be guaranteed to print out.
Description of drawings
Fig. 1 is user mode figure of the present utility model.
Fig. 2 is a driver composition of the present utility model
Fig. 3 is constant tension mechanism before the utility model, back constant tension mechanism structural representation.
The specific embodiment
Enforcement during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As Fig. 1～shown in Figure 3, comprise carrier gear 1, travelling gear 2, driving face wallboard 3, jockey pulley 4, clutch shaft 5, the swing arm 6 of control pinch roller, tension force pinch roller 7, operating surface wallboard 8, cylinder assembly 9, magnetic powder brake 10, low friction cylinder 11, potentiometer 12, oscillating roller 13, paper-feeding mechanism 14, the first printing unit 15, the second printing unit 16, the 3rd printing unit 17, the 4th printing unit 18 and folding mechanism 19, preceding constant tension mechanism 20, back constant tension mechanism 21, collection jockey pulley 22, bevel gear 23, power transmission shaft 24, motor 25, driving-belt 26, belt wheel 27 and printing roller 28 etc.
As depicted in figs. 1 and 2, comprise paper-feeding mechanism 14, the first printing unit 15, the second printing unit 16, the 3rd printing unit 17, the 4th printing unit 18 and folding mechanism 19, the magnetic powder brake 10 that is arranged on the paper-feeding mechanism 14 connects potentiometer 12 by electric wire, potentiometer 12 is by low friction cylinder 11 and oscillating roller 13 controls, the first printing unit 15, the second printing unit 16, the 3rd printing unit 17, the 4th printing unit 18 and folding mechanism 19 connect by power transmission shaft 24 successively, the power of power transmission shaft 24 is from motor 25, belt wheel 26, gear 27, gear 27 is installed on the power transmission shaft 24, gear 27 is connected with motor 25 by belt wheel 26, and intermeshing bevel gear 23, power transmission shaft 24 is parallel and vertical with the rubber roll 28 of each printing unit with driving face wallboard 3 and operating surface wallboard 8, feature is a constant tension mechanism 20 before being provided with by bearing assembly on the wallboard of first half paper before entering printing roller 28 of first printing unit 15, by bearing assembly constant tension mechanism 21 afterwards is set on the wallboard after the latter half of paper of the 4th print couple 18 leaves printing roller 28.
As shown in Figure 3, preceding constant tension mechanism 20 and back constant tension mechanism 21 structures are identical, and preceding constant tension mechanism 20 and back constant tension mechanism 21 include swing arm 6, tension force pinch roller 7, operating surface wallboard 8 and the cylinder assembly 9 of carrier gear 1, travelling gear 2, driving face wallboard 3, jockey pulley 4, clutch shaft 5, control pinch roller.Jockey pulley 4 utilizes bearing assembly to be installed on driving face wallboard 3 and the operating surface wallboard 8, jockey pulley 4 is installed travelling gear 2 and carrier gear 1 by driving face wallboard 3 ends, carrier gear 1 and travelling gear 2 engagements, rely on carrier gear 1 to transmit driving force, the clutch shaft 5 that is parallel to jockey pulley 4 belows also is installed on driving face wallboard 3 and the operating surface wallboard 8, the swing arm 6 of two groups of control pinch rollers is installed on clutch shaft 5, in the swing arm 6 of control pinch roller tension force pinch roller 7 is installed, the swing arm 6 of control pinch roller can axial adjustment, tension force pinch roller 7 surfaces and jockey pulley 4 applyings on clutch shaft 5.Jockey pulley 4, clutch shaft 5, tension force pinch roller 7 connect cylinder assembly 9 at clutch shaft 5 by operating surface wallboard 8 ends not at grade.Cylinder assembly 9 comprises pile crown, cylinder, reaches coupling assembling.
As shown in Figure 1, be the utility model user mode figure, (F1 between the A-B point is the paper supply tension force that produces during by magnetic powder brake in the paper-feeding mechanism 10 and potentiometer 12 work to utilize power F1, F2 that original print system provides, F3; F2 between the B-C point is permanent tension force, this tension force greater than paper supply tension force F1 and much larger than the unit printing roller because squeegee pressure and the inconsistent printing tension force that causes of roller diameter; F3 between the C-D point is the collection tension force that is produced by collection jockey pulley in the folding mechanism 22, is slightly larger than F2).Before the first printing unit 15 and behind the last printing unit 18, a constant tension mechanism is set respectively, is installed on the transmission wallboard of printing machine.
The diameter of described forward pull roller is slightly less than calculated diameter, so the active line speed perseverance of forward pull roller is less than the linear velocity of printing roller, the slightly larger in diameter of backward pull roller is in calculated diameter, so the linear velocity perseverance of backward pull roller is greater than calculated diameter, so the linear velocity perseverance of backward pull roller is greater than the print roller linear speed.The difference of front and back jockey pulley linear velocity produces a constant paper road tension force with the tension of paper road.This constant-tension promptly is not subjected to the influence of the unsteady tension force of paper-feeding mechanism, be not subjected to the influence of collection tension force yet, adjust the tension variation of error formation because of roller diameter error and squeegee pressure as for print system inside, be far smaller than the permanent tension force of present print system inside, can not have influence on the variation of the inner permanent tension force of print system.
Owing to there has been constant paper road tension force on printing paper road, print system inside, this has just overcome, and original paper-feeding mechanism produces unsteady tension force and the interior regular paper tension of print system changes printing the influence of chromatography, can obtain the correct printing of chromatography.
Claims (4)
1, the printing paper road that has constant-tension in a kind of rotary offset machine print system, comprise paper-feeding mechanism (14), the first printing unit (15), the second printing unit (16), the 3rd printing unit (17), the 4th printing unit (18) and folding mechanism (19), the magnetic powder brake (10) that is arranged on the paper-feeding mechanism (14) connects potentiometer (12) by electric wire, potentiometer (12) is by low friction cylinder (11) and oscillating roller (13) control, the first printing unit (15), the second printing unit (16), the 3rd printing unit (17), the 4th printing unit (18) and folding mechanism (19) connect by power transmission shaft (24) successively, power transmission shaft (24) is gone up gear (27) is installed, gear (27) is connected with motor (25) by belt wheel (26), and intermeshing bevel gear (23), power transmission shaft (24) is parallel with driving face wallboard (3) and operating surface wallboard (8) and vertical with the rubber roll (28) of each printing unit, it is characterized in that: enter on the preceding wallboard of printing roller (28) at first first half paper that prints unit (15) and preceding constant tension mechanism (20) is set, by bearing assembly back constant tension mechanism (21) is set on the wallboard after the latter half of paper of the 4th print couple (18) leaves printing roller (28) by bearing assembly.
2, the printing paper road that has constant-tension in the rotary offset machine print system according to claim 1, it is characterized in that described preceding constant tension mechanism 20 comprises carrier gear (1), travelling gear (2), driving face wallboard (3), jockey pulley (4), clutch shaft (5), the swing arm (6) of control pinch roller, tension force pinch roller (7), operating surface wallboard (8) and cylinder assembly (9), jockey pulley (4) is installed on driving face wallboard (3) and the operating surface wallboard (8) with bearing assembly, jockey pulley (4) is installed travelling gear (2) and carrier gear (1) by driving face wallboard (3) end, carrier gear (1) and travelling gear (2) engagement, the clutch shaft (5) that is parallel to jockey pulley (4) below is installed on driving face wallboard (3) and the operating surface wallboard (8), go up the swing arm (6) that two groups of control pinch rollers are installed at clutch shaft (5), the swing arm (6) of control pinch roller is gone up tension force pinch roller (7) is installed, the swing arm (6) of control pinch roller can be gone up axial adjustment at clutch shaft (5), fits with jockey pulley (4) in tension force pinch roller (7) surface.
3, the printing paper road that has constant-tension in the rotary offset machine print system according to claim 1 is characterized in that described jockey pulley (4), clutch shaft (5), tension force pinch roller (7) not at grade.
4, the printing paper road that has constant-tension in the rotary offset machine print system according to claim 1 is characterized in that described clutch shaft (5) connects cylinder assembly (9) by operating surface wallboard (8) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200400437U CN201399942Y (en) | 2009-04-08 | 2009-04-08 | Printing paper path with constant tensile force in printing system of rotary offset machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200400437U CN201399942Y (en) | 2009-04-08 | 2009-04-08 | Printing paper path with constant tensile force in printing system of rotary offset machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201399942Y true CN201399942Y (en) | 2010-02-10 |
Family
ID=41659738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200400437U Expired - Fee Related CN201399942Y (en) | 2009-04-08 | 2009-04-08 | Printing paper path with constant tensile force in printing system of rotary offset machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201399942Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143464A (en) * | 2019-04-02 | 2019-08-20 | 广东前润机械科技有限公司 | A kind of tension keeps constant rotary press |
-
2009
- 2009-04-08 CN CN2009200400437U patent/CN201399942Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143464A (en) * | 2019-04-02 | 2019-08-20 | 广东前润机械科技有限公司 | A kind of tension keeps constant rotary press |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101148126A (en) | Technology method for realizing positioning chromatograph printing technique | |
| DE102012222087A1 (en) | Electrical bicycle, has chain drive transferring drive force of electric motor on rear wheel, pedal drive inputting body force of driver of bicycle into chain drive, and clutch and free-wheel separably coupling pedal drive at chain drive | |
| CN201049536Y (en) | Water-cooled flexible printer set | |
| CN201399942Y (en) | Printing paper path with constant tensile force in printing system of rotary offset machine | |
| CN206663955U (en) | Printing machine patterned roll Fast synchronization driving and reversing mechanism | |
| CN205523143U (en) | Continuous automatic stamping mechanisms of paper that ally oneself with more | |
| CN102125935B (en) | Device and method for controlling camber of board blank of sizing press (SP) | |
| CN101214682A (en) | Alignment mechanism in stacking machine | |
| CN101797831B (en) | Full-automatic screen printer | |
| CN217047886U (en) | Automatic pressure adjusting device for rubber roller of offset press | |
| CN204149685U (en) | Printer | |
| CN202242266U (en) | Transmission of unit type flexography machine | |
| CN104626729A (en) | Rotary flexo press film-inner automatic printing device | |
| CN102371791A (en) | Numerical control dynamic sealing mechanism for bank receipt | |
| CN203623114U (en) | Printing unit of carton printing machine | |
| CN108569018B (en) | Method for reducing quasi-static register differences in printing presses | |
| CN205238786U (en) | Five roller damping systems damping roller drive device by force | |
| CN102390163A (en) | Unit type flexo printing machine driving system | |
| CN203485562U (en) | Secondary tension controlling device for paper tapes | |
| CN204149684U (en) | Printer | |
| CN202021907U (en) | Transmission and pushing device for shafted printing plate roller of photogravure press | |
| CN117698124B (en) | Feeding and returning equipment and 3D printer | |
| CN202669217U (en) | Improved document stamping machine | |
| CN205929852U (en) | Print media compensates measuring mechanism | |
| CN206186548U (en) | Divide page heat -transfer seal bar code printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20140408 |