CN103085464B - Swing paper transferring mechanism of offset press - Google Patents
Swing paper transferring mechanism of offset press Download PDFInfo
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- CN103085464B CN103085464B CN201110346373.0A CN201110346373A CN103085464B CN 103085464 B CN103085464 B CN 103085464B CN 201110346373 A CN201110346373 A CN 201110346373A CN 103085464 B CN103085464 B CN 103085464B
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- cam
- transfer
- gripper
- driving side
- paper transferring
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Abstract
The invention discloses a swing paper transferring mechanism of an offset press which includes a paper transferring hand, a paper transferring cylinder, a drive mechanism, a paper transferring hand follower and a paper transferring gripper follower. The paper transferring hand includes a gripper shaft and an open-closed armature. The drive mechanism includes a drive gear, a paper transferring hand control cam, a transmission gear and a paper transferring gripper control cam. The drive gear and the paper transferring hand control cam are fixed on a drive lateral shaft neck of the paper transferring cylinder. The transmission gear and the paper transferring gripper control cam are fixed on a cam shaft. The paper transferring hand control cam and the paper transferring gripper control cam are both composed of a main cam and an auxiliary cam which have conjugate curve outer circumferences. The paper transferring hand follower includes a first pair of swing rods. The ends of the first pair of swing rods are consistent with the outer circumference of the paper transferring hand control cam. The paper transferring gripper follower includes a second pair of swing rods, a swing arm and a swing rod cam. A curve slot in which the open-closed armature can be embedded is arranged on the inner lateral surface of the swing rod cam. The ends of the second pair of are consistent with the outer circumference of the paper transferring gripper control cam. The end of the swing arm is consistent with the outer circumference of the swing rod cam.
Description
Technical field
The present invention relates to a kind of offset press, be specifically related to a kind of sway downward paper feeding mechanical of offset press.
Background technology
At present, common in offset press feeding mechanism mainly contains three kinds: swing type, rotary and override type.The function of feeding mechanism is by the paper leading edge of accurate positioning on defeated cardboard, sends sheet transfer drum to or impression cylinder enters roll extrusion printing.This transfer mode is called indirect transfer.That paper is delivered to sheet transfer drum from defeated cardboard.When paper is after location, the front lay place of defeated cardboard, paper remains static, and in order to ensure chromatography precision, the transfer gripper of feeding mechanism also will splicing under the state of absolute rest.For high-speed press, the time of the transfer gripper under static state splicing of feeding mechanism is shorter, and chromatography precision is more difficult to ensure card.Rotary feeding mechanism is that transfer gripper to be installed on sheet transfer drum and to make continuous print uniform motion with sheet transfer drum, and transfer gripper does the oscillating motion of self on cylinder, its sheet transfer drum complex structure, cost is higher, and, because sheet transfer drum rotary speed is higher, it is shorter in the defeated cardboard place splicing time, is difficult to ensure chromatography precision.Override type feeding mechanism is placed on impression cylinder by the final location of paper, paper after pre-aligned on defeated cardboard, then accelerates to republish after (linear resonance surface velocity slightly larger than impression cylinder) front lay place rested on impression cylinder carries out secondary location by paper acceleration mechanism by paper.But paper feed route is long before printing in this mechanism, affects the lifting of print speed printing speed during thin paper, therefore to paper and control overflow higher, only apply on high-end printing machine.Swinging gripper mechanism after paper is passed to sheet transfer drum, can fast return to defeated cardboard, have the accurate splicing that the more time ensures under fast state like this, meet the chromatography precision under printing machine fast state.
Swinging gripper mechanism divides again two kinds of forms, namely goes up pendulum-type feeding mechanism and sway downward paper feeding mechanical.Most widely used in current offset press is sway downward paper feeding mechanical.Sway downward paper feeding mechanical is made up of two parts: one is the driving mechanism of feeding mechanism, and another is the transfer gripper switching mechanism of feeding mechanism.These two parts are both separate, cooperatively interact again, jointly complete the transport process of paper.The job stability of feeding mechanism directly has influence on the job stability of printing machine and the stability of print quality.In order to meet the needs of high speed printing, the conjugate cam form that usual sway downward paper feeding mechanical adopts shape to close.The applicant is that to disclose one " sway downward paper feeding mechanism of offset press " in the patent of invention of ZL200720076926 be exactly have employed conjugate cam to control transfer hand and realize expection and swing in the patent No..Although this mechanism structure simple mechanism, takes up room little, cumulative errors are little can accurate sheets.But the control cam in this structure is arranged on the inner side of driving side wallboard, be unfavorable for drenching oil lubrication (inner side of the working environment deadlight of offset press has not allowed lubricating oil).
The problems such as in addition, existing sway downward paper feeding mechanical also exists rotary inertia when high speed printing large, and bad vibration is large, kinetic characteristic difference, have a strong impact on chromatography quality.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, to provide a kind of sway downward paper feeding mechanical of offset press, this mechanism takes up room little, and structure is simple, and stable drive, cumulative errors are little, and opening and closing action is more accurate.
The technical scheme realizing above-mentioned purpose is:
The technical scheme of the sway downward paper feeding mechanical of offset press of the present invention, transfer gripper is controlled cam and transfer hand control cam is all designed to conjugate form, make two cam mechanisms form geometry to close, instead of it is force-closed, thus vibrations when decreasing high-speed cruising, make the swing of transfer hand and transfer gripper opening and closing more steady, paper transmission is stablized more, accurately and reliably, adapt to high speed printing.Transfer hand can return splicing, stable drive in advance without the need to waiting for that paper is covered, and is conducive to improving machine speed and transfer precision.Also have, transfer gripper is controlled the outside that cam and transfer hand control cam are arranged on the same side wallboard, by driven wheel and travelling gear with 1: 1 transmission, thus drive swing arm and the opening and closing of swing link cam Direct driver transfer gripper, mechanism is taken up room little, structure is simple, stable drive, cumulative errors are little, and opening and closing action is more accurate.Transfer gripper controls cam and transfer hand control cam is all located at outside wallboard, is convenient to drench oil lubrication, can improve the condition of work of cam, extends the service life of cam.In addition, the curved groove of swing link cam is designed to arc groove, makes easy to process.
Accompanying drawing explanation
Fig. 1 is the profile of the sway downward paper feeding mechanical of offset press of the present invention;
Fig. 2 is the side view of the sway downward paper feeding mechanical of offset press of the present invention;
Fig. 3 a is the structural representation for swing link cam in sway downward paper feeding mechanical of the present invention;
Fig. 3 b is the B direction view of Fig. 3 a;
Fig. 3 c is that the A-A of Fig. 3 a is to sectional view;
Fig. 4 is the perspective view in a direction of the sway downward paper feeding mechanical of offset press of the present invention;
Fig. 5 is the perspective view in another direction of the sway downward paper feeding mechanical of offset press of the present invention.
Detailed description of the invention
In order to understand technical scheme of the present invention better, be also described in detail by reference to the accompanying drawings below by specific embodiment:
Refer to Fig. 1 to Fig. 5, the sway downward paper feeding mechanical of offset press of the present invention, comprise transfer hand, sheet transfer drum, driving mechanism, transfer hand follower, transfer gripper follower and bracing frame 30.
Bracing frame 30 is connected to the outside of the driving side wallboard 20 of offset press and has the rear stay plate that is parallel to driving side wallboard 20.
Transfer hand comprise be connected across transfer main shaft 1 between the driving side wallboard 20 of offset press and fore side wallboard, be connected to the gripper cushion mounting plate 13 on transfer main shaft 1 and axle 14 of gritting one's teeth by a pair transfer gripper brace 11,12, multiple compartment of terrain is arranged on bite-block 130 on gripper cushion mounting plate 13, be multiplely sleeved on the opening and closing ball 141 that on axle 14 of gritting one's teeth and corresponding with bite-block 130 transfer gripper 140 and is connected to axle 14 drive end of gritting one's teeth; The driving side axle journal of transfer main shaft 1 is arranged on the rear stay plate of bracing frame 30 by bearing through driving side wallboard 20.
Sheet transfer drum 2 is connected across between driving side wallboard 20 and fore side wallboard, and the driving side axle journal of this sheet transfer drum 2 is arranged on the rear stay plate of bracing frame 30 by bearing through driving side wallboard 20.
Driving mechanism comprises a driven wheel 5, transfer gripper controls cam 4, travelling gear 6 and transfer hand control cam 3, wherein:
Driven wheel 5 is driven by the mair motor of offset press; Driven wheel 5 and transfer gripper control cam 4 and are fixed together and are packed on the driving side axle journal of sheet transfer drum 2; It is that the main cam of conjugate curves and auxiliary cam are formed that transfer gripper controls cam 4 by outer peripheral face;
Travelling gear 6 and transfer hand control cam 3 are fixed together and are packed on a camshaft 21, and this camshaft 21 is connected across between the rear stay plate of driving side wallboard 20 and bracing frame 30 by bearing; Transfer hand control cam 3 is that the main cam of conjugate curves and auxiliary cam are formed by outer peripheral face, and travelling gear 6 and driven wheel 5 are connected with a joggle.
Transfer hand follower comprises a pair transfer hand fork 71,72, and on the driving side axle journal that this pair transfer hand fork 71,72 is packed in transfer main shaft 1 and their termination coincide respectively on the main cam of transfer hand control cam 3 and the outer peripheral face of auxiliary cam.
Transfer gripper follower comprises a pair transfer gripper fork 81,82, swing arm 10 and a swing link cam 9, wherein:
A pair transfer gripper fork 81,82 is packed on an arm shaft 22, and this arm shaft 22 is connected across between the rear stay plate of driving side wallboard 20 and bracing frame 30 by bearing; The termination of this pair transfer gripper fork 81,82 is equipped with roller respectively and coincide respectively on the main cam of transfer gripper driving cam 4 and the outer peripheral face of auxiliary cam;
Swing arm 10 is packed on the arm shaft 22 inside through driving side wallboard 20, makes the termination of this swing arm 10 with roller
Swing arm 10 is arranged on the arm shaft 22 inside through driving side wallboard 20;
Swing link cam 9 is packed in an installation shaft 90 be positioned at inside driving side wallboard 20, and the termination of the outer peripheral face of this swing link cam 9 is also provided with a boss 92, makes the termination roller of swing arm 10 coincide on this boss 92 upper surface; The medial surface of this swing link cam 9 is offered a curved groove 91, be rollably embedded in this curved groove 91 to make opening and closing ball 141.For the ease of processing, curved groove 91 can be processed into arc groove.
The pivot of swing link cam 9 also connects an afterbody 93, and the stage clip 31 that the termination and of this afterbody 93 is sleeved on stage clip guide rod 32 is connected, and the other end of this stage clip 31 is connected on a mounting blocks 33, and this mounting blocks 33 is fixed on the medial surface of driving side wallboard 20.
The operation principle of sway downward paper feeding mechanical of the present invention is:
The mair motor driven wheel 5 of offset press and transfer gripper control cam 4 and drive sheet transfer drum 2 to rotate, travelling gear 6 and transfer hand control cam 3 is driven again by driven wheel 5, make transfer hand control cam 3 and transfer gripper control cam 4 to rotate with identical angular speed, simultaneously, the outer peripheral face of the main cam of transfer hand control cam 3 and the outer peripheral face of auxiliary cam drive a pair transfer hand fork 71,72 to form geometry respectively and close, this a pair transfer hand fork 71,72 drives transfer main shaft 1 to realize expection by key again and swings, and namely drives transfer hand to realize expection and swings.The outer peripheral face of main cam and the outer peripheral face of auxiliary cam of transfer gripper control cam 4 drive a pair transfer gripper fork 81,82 respectively, this a pair transfer gripper fork 81,82 forms geometry and closes, drive arm shaft 22 to realize expection by key to swing, then drive swing link cam 9 realization expection to swing by the swing arm 10 be packed on arm shaft 22.Swing link cam 9 and the effect of swing arm 10 by stage clip 31, formed force-closed under normal printing state, boss 92 upper surface making swing link cam 9 termination all the time with the roller contact in swing arm 10.
When transfer hand swings to defeated cardboard 40 place, keep static slightly to stop, now swing link cam 9 is counterclockwise swung to extreme higher position by low level, thus opening and closing ball 141 is driven grit one's teeth axle 14 and the paper driving transfer gripper 140 closed with bite-block 130 and bite on defeated cardboard 40, paper is stung in realization, and transfer hand accelerates to swing to sheet transfer drum 2 again, in the process, swing link cam 9 keeps extreme higher position, and that is transfer gripper 140 keeps stinging paper-like state.When transfer hand swings to the position of sheet transfer drum 2, keep synchronized with sheet transfer drum 2, now swing link cam 9 clockwise by extreme higher position to lower swing, thus make opening and closing ball 141 drive axle 14 of gritting one's teeth, and drive transfer gripper 140 to open, paper passes to sheet transfer drum 2 from transfer hand, realizes the normal handing-over of paper.After having joined, paper rotates into printing element along with sheet transfer drum 2, and after this, transfer hand continues the bottom and slowly slows down, and stops bottom, steadily return to defeated cardboard 40 place subsequently again until swing to, and waits for and gets paper next time.
Sway downward paper feeding mechanical of the present invention, in order to meet the needs of high speed printing, have employed the biconjugate cams that shape is closed.Conjugate cam mechanism does not need spring, but realizes reliable contacts between cam and driven member by geometry, and its work accurately and reliably, is suitable for working reposefully under high-speed overload.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (4)
1. the sway downward paper feeding mechanical of an offset press, comprise transfer hand, sheet transfer drum, driving mechanism, transfer hand follower and transfer gripper follower, described transfer hand comprises the transfer main shaft be connected across between the driving side wallboard of described offset press and fore side wallboard, the gripper cushion mounting plate on transfer main shaft and axle of gritting one's teeth is connected to by a pair transfer gripper brace, multiple compartment of terrain is arranged on the bite-block on gripper cushion mounting plate, multiplely to be sleeved on axle of gritting one's teeth and the transfer gripper corresponding with bite-block and is connected to the opening and closing ball of axle drive end of gritting one's teeth, described sheet transfer drum is connected across between described driving side wallboard and fore side wallboard, it is characterized in that,
Described driving mechanism comprises driven wheel, transfer gripper controls cam, travelling gear and transfer hand control cam, wherein,
Described driven wheel and described transfer gripper control cam and are fixed together and are packed on the driving side axle journal of described sheet transfer drum; Described driven wheel is driven by the mair motor of described offset press; It is that the main cam of conjugate curves and auxiliary cam are formed that described transfer gripper controls cam by outer peripheral face;
Described travelling gear and described transfer hand control cam are fixed together and are packed on a camshaft, and described transfer hand control cam is that the main cam of conjugate curves and auxiliary cam are formed by outer peripheral face, and described travelling gear and described driven wheel are connected with a joggle;
Described transfer hand follower comprises a pair transfer hand fork, on the driving side axle journal that this pair transfer hand fork is packed in described transfer main shaft and their termination coincide respectively on the main cam of described transfer hand control cam and the outer peripheral face of auxiliary cam;
Described transfer gripper follower comprises a pair transfer gripper fork, a swing arm and a swing link cam, wherein,
Described a pair transfer gripper fork is packed on an arm shaft, and the termination of this pair transfer gripper fork coincide respectively and controls on the main cam of cam and the outer peripheral face of auxiliary cam at described transfer gripper;
Described swing arm is arranged on the described arm shaft inside through described driving side wallboard;
Described swing link cam is packed in an installation shaft be positioned at inside described driving side wallboard, the termination of the outer peripheral face of this swing link cam is also provided with a boss, the termination of described boss and described swing arm coincide, the medial surface of this swing link cam is offered a curved groove, be rollably embedded in this curved groove to make described opening and closing ball.
2. the sway downward paper feeding mechanical of offset press according to claim 1, it is characterized in that, the pivot of described swing link cam also connects an afterbody, the stage clip that the termination and of this afterbody is sleeved on stage clip guide rod is connected, the other end of described stage clip is connected on a mounting blocks, and this mounting blocks is fixed on the medial surface of described driving side wallboard.
3. the sway downward paper feeding mechanical of offset press according to claim 1, is characterized in that,
The driving side axle journal of described sheet transfer drum and the driving side axle journal of described transfer main shaft are each passed through described driving side wallboard and are arranged on a bracing frame be fixed on outside described driving side wallboard by bearing;
Described camshaft and described arm shaft are connected across between described driving side wallboard and support frame as described above respectively by bearing.
4. the sway downward paper feeding mechanical of offset press according to claim 1, is characterized in that, the curved groove on described swing link cam is arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346373.0A CN103085464B (en) | 2011-11-04 | 2011-11-04 | Swing paper transferring mechanism of offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110346373.0A CN103085464B (en) | 2011-11-04 | 2011-11-04 | Swing paper transferring mechanism of offset press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103085464A CN103085464A (en) | 2013-05-08 |
| CN103085464B true CN103085464B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110346373.0A Expired - Fee Related CN103085464B (en) | 2011-11-04 | 2011-11-04 | Swing paper transferring mechanism of offset press |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750769B (en) * | 2018-07-24 | 2023-10-27 | 东莞市华著机械有限公司 | Paper conveying mechanism and waste removing machine thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841626A (en) * | 1973-03-01 | 1974-10-15 | Miller Printing Machinery Co | Sheet feeding apparatus |
| DE19617542A1 (en) * | 1996-05-02 | 1997-11-06 | Kba Planeta Ag | Sheet turning gripper system in turning drums of printing machines |
| CN2439371Y (en) * | 2000-08-15 | 2001-07-18 | 营口冠华胶印机有限公司 | Device for controlling paper feeding and positioning for offset press |
| DE10350986A1 (en) * | 2003-10-31 | 2005-06-02 | Koenig & Bauer Ag | Drive for swing system for turning sheets in sheet-feeding cylinder in rotary printing machine, has pressure application point between ends of driven shaft for transmitting torque from drive shaft |
| CN2905431Y (en) * | 2006-03-19 | 2007-05-30 | 江苏昌昇集团股份有限公司 | Bisect four-color offset press |
| CN201124612Y (en) * | 2007-12-21 | 2008-10-01 | 上海光华印刷机械有限公司 | Sway downward paper feeding mechanism of offset press |
| CN201183358Y (en) * | 2008-02-21 | 2009-01-21 | 上海电气集团印刷包装机械有限公司第三印刷机械分公司 | Cam and counter cam mechanism for open and close of drum gripper of offset printer |
| CN201362029Y (en) * | 2008-12-31 | 2009-12-16 | 青岛瑞普电气有限责任公司 | Upswing-type rack-and-pinion engagement paper transferring mechanism |
| CN202368056U (en) * | 2011-11-04 | 2012-08-08 | 上海光华印刷机械有限公司 | Low pendulum type paper passing mechanism of offset printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586754A (en) * | 1978-12-25 | 1980-06-30 | Komori Printing Mach Co Ltd | Swing gripper drovomg device for printing press |
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2011
- 2011-11-04 CN CN201110346373.0A patent/CN103085464B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841626A (en) * | 1973-03-01 | 1974-10-15 | Miller Printing Machinery Co | Sheet feeding apparatus |
| DE19617542A1 (en) * | 1996-05-02 | 1997-11-06 | Kba Planeta Ag | Sheet turning gripper system in turning drums of printing machines |
| CN2439371Y (en) * | 2000-08-15 | 2001-07-18 | 营口冠华胶印机有限公司 | Device for controlling paper feeding and positioning for offset press |
| DE10350986A1 (en) * | 2003-10-31 | 2005-06-02 | Koenig & Bauer Ag | Drive for swing system for turning sheets in sheet-feeding cylinder in rotary printing machine, has pressure application point between ends of driven shaft for transmitting torque from drive shaft |
| CN2905431Y (en) * | 2006-03-19 | 2007-05-30 | 江苏昌昇集团股份有限公司 | Bisect four-color offset press |
| CN201124612Y (en) * | 2007-12-21 | 2008-10-01 | 上海光华印刷机械有限公司 | Sway downward paper feeding mechanism of offset press |
| CN201183358Y (en) * | 2008-02-21 | 2009-01-21 | 上海电气集团印刷包装机械有限公司第三印刷机械分公司 | Cam and counter cam mechanism for open and close of drum gripper of offset printer |
| CN201362029Y (en) * | 2008-12-31 | 2009-12-16 | 青岛瑞普电气有限责任公司 | Upswing-type rack-and-pinion engagement paper transferring mechanism |
| CN202368056U (en) * | 2011-11-04 | 2012-08-08 | 上海光华印刷机械有限公司 | Low pendulum type paper passing mechanism of offset printer |
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| CN103085464A (en) | 2013-05-08 |
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