CN107097515A - Sheet-fed offset press front lay and sheet-fed offset press - Google Patents
Sheet-fed offset press front lay and sheet-fed offset press Download PDFInfo
- Publication number
- CN107097515A CN107097515A CN201710312207.6A CN201710312207A CN107097515A CN 107097515 A CN107097515 A CN 107097515A CN 201710312207 A CN201710312207 A CN 201710312207A CN 107097515 A CN107097515 A CN 107097515A
- Authority
- CN
- China
- Prior art keywords
- swing rod
- front lay
- sheet
- offset press
- fed offset
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/12—Adjusting leading edges, e.g. front stops
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- Registering Or Overturning Sheets (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
The present invention provides a kind of sheet-fed offset press front lay, including gear paper block, connecting rod, the short swing rod of front lay, swing rod axle, bearing pin, driving swing rod and drive shaft；Gear paper block is fixedly mounted on interlinking lever end, the other end of connecting rod is flexibly connected by bearing pin and driving swing rod, and driving swing rod is fixedly mounted on the driving shaft, and the short swing rod of front lay and connecting rod are movably arranged on swing rod axle, the short swing rod of front lay, connecting rod and driving swing rod are sequentially connected, and constitute quadric chain.Connected using quadric chain, it is to avoid spring fixes the vibration problem produced, accuracy, reliability, the stability of predetermined bits before improving, regulation also more facilitate.
Description
Technical field
The present invention relates to printing equipment field, more particularly to a kind of sheet-fed offset press front lay and sheet-fed offset press.
Background technology
Front lay is an essential mechanical part in printing machine, and its effect is in leading edge in printing process to paper
Edge carries out upper-lower position positioning exactly, makes position and same angle stopping that every paper can be maintained like, Ran Houqian
Advise from allowing, paper is sent into printing unit.
Front lay is divided into upper pendulum-type and lower pendulum-type according to front lay structure is different with operating orientations.Upper pendulum-type front lay is due to its structure
Reason causes the time of locating paper sheets in the process of running relatively long, so as to cause pendulum-type front lay can not in high speed printing
Adapt to the requirement of front lay bit rates.
As depicted in figs. 1 and 2, existing lower pendulum-type front lay, it is such as domestic to use fairly common Heidelberg
The front lay used in Speedaster CD-102 sequence of printers, due to its front lay driving cam curve, transmission knot
Structure design and front lay the reason such as structural parameters, always in the presence of positioning precision is high under high speed printing state, vibratory impulse
The problems such as larger, front lay height and angle of inclination are not easy to regulation, has harmful effect to printing quality and equipment life.
The content of the invention
There is provided a kind of sheet-fed offset press front lay and individual offset printing of paper in order to overcome the deficiencies in the prior art by the present invention
Machine.
To achieve these goals, the present invention provides a kind of sheet-fed offset press front lay, including gear paper block, connecting rod, front lay
Short swing rod, swing rod axle, bearing pin, driving swing rod and drive shaft；Gear paper block is fixedly mounted on interlinking lever end, and the other end of connecting rod passes through
Bearing pin and driving swing rod are flexibly connected, and driving swing rod is fixedly mounted on the driving shaft, and the short swing rod of front lay and connecting rod are movably arranged on
On swing rod axle, the short swing rod of front lay, connecting rod and driving swing rod are sequentially connected, and constitute quadric chain.
Quadric chain need not need to keep the fixation of parts using structures such as springs as traditional preceding gauge mechanism
And contact.The structural elements are less, more flexible during operating, and lubricating maintenance is also more convenient, so abrasion is relatively delayed, with longer
Service life.Simultaneously as structure is simplified, space becomes big, can dexterously avoid very much front lay structure with grippers mechanism in structure
Interference spatially.Contact between linkage is to lean on the closed geometry profile of itself to maintain, because being entirely rigid knot
Structure, it is to avoid the elastic vibration problem being likely to occur in spring structure, can ensure that preceding predetermined bits and from the accuracy allowed, effectively subtracts
Small preceding gauge mechanism rapidly periodic motion is produced in high speed printing vibration and impact, when preferably can adapt to high speed printing
Sheet positioning requirement.The power of drive shaft is from the cam structure for being fixedly connected on driveshaft end, cam and cam swing
Drive shaft reciprocally swinging is driven, is driven to connecting rod and gear paper block, so as to realize the periodicity gear paper of front lay and from allowing, this is existing
Technical scheme, therefore omit and do not elaborate.
In one embodiment of the invention, in addition to stop actuator, support shaft, stopper arms and stop swing rod；Stop swing rod
It is fixedly connected with the drive shaft, follows drive shaft to swing；Stopper arms are movably arranged in support shaft, stop actuator and stop
Arm is connected, and stop actuator can drive stopper arms around support shaft rotary motion；Stopper arms rotary motion trace and stop swing rod swing rail
It is overlapping between mark.
The front lay is driven by quadric chain, and structure is relatively simple, because printing press is generally all very huge, equipment
Complete start and stop are relatively time-consuming, so in printing process, the conveying of paper is interrupted, you can stop printing machine effective and rapidly
Work.Carry out stop from the drive end of front lay structure, stop front lay from allowing, paper is just stopped by front lay, it is impossible to continue to convey
It is simple in construction easily operated into printing equipment, with good stability in use.
In one embodiment of the invention, the stop actuator is cylinder.
When front lay runs at high speed, brake arm is transferred to the motion blocked from driven fork suddenly, easily produces larger impact
Power, is impacted to stop component.When cylinder is by larger stress, the volume of air in cylinder can be compressed, and rise
To certain cushioning effect, the infringement during reduction stop to equipment.
In one embodiment of the invention, in addition to height adjusting part, eccentric bushing, eccentric bushing are additionally provided with the swing rod axle
It is fixedly connected with swing rod axle, the short swing rod of front lay and connecting rod are movably arranged on eccentric bushing, swing rod shaft end and height adjusting part
Drive connection.
Because not having spring structure in this front lay, all it is rigidly connected between bar and axle, is in divide relative to offset press wallboard
From formula construction, by the way that the swing rod axle wherein played a supportive role is adjusted, the position of whole front lay structure just can be adjusted.Utilize
All identity distances set heart of eccentric bushing apart from fluctuations the characteristics of realize that the regulation to front lay structure can be more directly accurate,
It is favorably improved equipment positioning precision.
In one embodiment of the invention, the height adjusting part includes front lay height adjusting screw rod and swing rod shaft gear,
Swing rod shaft gear is fixedly mounted on swing rod axle, the screw thread engaged transmission on swing rod shaft gear and front lay height adjusting screw rod.
The setting accuracy of front stop of printer requires at a relatively high, and the amplitude when being adjusted is also not too large, using spiral shell
Bar and the structure of gear engagement, on the one hand according to principle of moment balance, although equipment component is relatively bulky, but need to only be used smaller
Power can be adjusted；Even if on the other hand the rotation of front lay height adjusting screw rod is by a relatively large margin, driven swing rod shaft gear
Less amplitude only can be rotated, the adjustment amplitude of swing rod axle is very slow, can effectively improve precision during regulation.
In one embodiment of the invention, in addition to tilt adjustment component, the tilt adjustment component includes eccentric bearing block,
One end of the drive shaft is movably arranged in eccentric bearing block.
In one embodiment of the invention, the tilt adjustment component also includes front lay tilt adjustment screw rod and travelling gear,
The travelling gear is arranged between eccentric bearing block and front lay tilt adjustment screw rod, the screw thread on front lay tilt adjustment screw rod and
Travelling gear is engaged, and drives eccentric bearing block to rotate by travelling gear.
Eccentric bushing is set on swing rod axle, and the fluctuating of support surface is uniform when swing rod axle is rotated, so as to adjust
The height of front lay；And drive shaft only one end is provided in eccentric bearing block, therefore when eccentric bearing block is rotated, driving
One end of axle is subjected to displacement, and the other end immobilizes, so that drive shaft is tilted relative to original position, because
The separate type construction of the front lay, by the way that the swing rod axle wherein played a supportive role is adjusted, just can adjust whole front lay structure
Position.
In one embodiment of the invention, gear paper block is provided with roller.
It is typically that will keep off the lateral paper guide that paper block end is designed as upwarping in traditional front lay, guiding paper is smoothly sent to front lay
Keep off under paper block, be easy to compacting to position.The lateral paper guide for keeping off paper block end is changed to roller, can equally be risen when paper sheet delivery comes
To the effect of guiding, but the sliding friction of paper will be become for rolling friction, the resistance for making paper be subject in course of conveying
Reduce, it is ensured that there is paper enough kinetic energy to reach front lay edge, the accuracy for contributing to increase to position.
The present invention also provides a kind of sheet-fed offset press front lay, including above-mentioned sheet-fed offset press front lay.
Brief description of the drawings
Fig. 1 is the structural representation of Heidelberg Speedaster CD-102 sequence of printers front lays.
Fig. 2 is the operation principle schematic diagram of Heidelberg Speedaster CD-102 sequence of printers front lays.
Fig. 3 is the overlooking the structure diagram of sheet-fed offset press front lay of the present invention.
Fig. 4 is the enlarged diagram of part A in Fig. 3.
Fig. 5 is that the left view structure of sheet-fed offset press front lay of the present invention and its height adjustment structure and tilt adjustment structure is shown
It is intended to.
Fig. 6 is the enlarged diagram of D parts in Fig. 5.
Fig. 7 is the enlarged diagram of part B in Fig. 3.
Fig. 8 is the enlarged diagram of C portion in Fig. 3.
Fig. 9 is the left view structural representation of the chocking construction of sheet-fed offset press front lay of the present invention.
Each reference is in figure：
1st, paper block is kept off；12nd, roller；2nd, connecting rod；21st, swing rod axle；22nd, bearing pin；3rd, the short swing rod of front lay；41st, swing rod is driven；
42nd, drive shaft；51st, stop actuator；52nd, support shaft；53rd, stopper arms；54th, stop swing rod；61st, eccentric bushing；62nd, front lay height
Adjusting screw rod；63rd, swing rod shaft gear；71st, eccentric bearing block；72nd, front lay tilt adjustment screw rod；73rd, travelling gear.
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly,
And coordinate accompanying drawing, it is described in detail below.
Refer to Fig. 3, Fig. 4 and Fig. 5, the present invention provides a kind of sheet-fed offset press front lay, including gear paper block 1, connecting rod 2,
The short swing rod 3 of front lay, swing rod axle 21, bearing pin 22, driving swing rod 41 and drive shaft 42；Gear paper block 1 is fixedly mounted on the end of connecting rod 2,
The other end of connecting rod 2 is flexibly connected by bearing pin 22 and driving swing rod 41, and driving swing rod 41 is fixedly mounted in drive shaft 42, preceding
Advise short swing rod 3 and connecting rod 2 is movably arranged on swing rod axle 21, the short swing rod 3 of front lay, connecting rod 2 and driving swing rod 41 are sequentially connected, structure
Into quadric chain.
The short swing rod 3 of front lay, connecting rod 2 and driving swing rod 41 are sequentially connected, and form quadric chain, it is not necessary to as traditional
Preceding gauge mechanism needs to keep the fixation and contact of parts using structures such as springs.The structural elements are less, during operating more
Plus flexibly, lubricating maintenance is also more convenient, so abrasion is relatively delayed, with longer service life.Simultaneously as structure is simplified, space
Become big, can dexterously avoid very much front lay structure and interference of the grippers mechanism on structure space.Contact between linkage
It is to be maintained by the closed geometry profile of itself, because be full rigid structure, it is to avoid the bullet being likely to occur in spring structure
Property vibration problem, can ensure that preceding predetermined bits and from the accuracy allowed, effectively reduce before gauge mechanism in high speed printing rapidly
Vibration and impact that periodic motion is produced, can preferably adapt to sheet positioning requirement during high speed printing.The power of drive shaft 42
From the cam structure for being fixedly connected on driveshaft end, cam and cam swing drive drive shaft reciprocally swinging, are driven to company
Bar and gear paper block, so as to realize the periodicity gear paper of front lay and from allowing, this is prior art, therefore omits and do not make specifically
It is bright.
Fig. 3, Fig. 8 and Fig. 9 are refer to, a kind of embodiment, in addition to stop actuator 51, support shaft 52, stopper arms is used as
53 and stop swing rod 54；Stop swing rod 54 is fixedly connected with drive shaft 42, follows drive shaft 42 to swing；The activity of stopper arms 53 is installed
In support shaft 52, stop actuator 51 and stopper arms 53 are connected, and stop actuator 51 can drive stopper arms 53 around support shaft 52
Rotary motion；It is overlapping between the rotary motion trace of stopper arms 53 and the swinging track of stop swing rod 54.
The front lay is driven by quadric chain, simple and reliable for structure, because printing press is generally all very huge, equipment
Complete start and stop are relatively time-consuming, so in printing process, the conveying of paper is interrupted, you can stop printing machine effective and rapidly
Work.Carry out stop from the drive end of front lay structure, stop front lay from allowing, paper is just stopped by front lay, it is impossible to continue to convey
It is simple in construction easily operated into printing equipment, with good stability in use.
As a kind of embodiment, stop actuator 51 is cylinder.
As shown in figure 9, when front lay runs at high speed, brake arm 53 is transferred to the motion for blocking stop swing rod 54 suddenly, easily
Larger impulsive force is produced, stop component is impacted.When cylinder is by larger stress, the volume of air in cylinder can
To compress, certain cushioning effect, the infringement during reduction stop to equipment are played.
Fig. 3 and Fig. 4 are refer to, as a kind of embodiment, in addition to height adjusting part, bias is additionally provided with swing rod axle 21
Set 61, eccentric bushing 61 is fixedly connected with swing rod axle 21, and the short swing rod 3 of front lay and connecting rod 2 are movably arranged on eccentric bushing 61, swing rod axle
21 ends and the drive connection of height adjusting part.
Because not having spring structure in this front lay, all it is rigidly connected between bar and axle, is in divide relative to offset press wallboard
From formula construction, by the way that the swing rod axle wherein played a supportive role is adjusted, the position of whole front lay structure just can be adjusted.Utilize
All identity distances set heart of eccentric bushing apart from fluctuations the characteristics of realize that the regulation to front lay structure can be more directly accurate,
It is favorably improved equipment positioning precision.
Fig. 3, Fig. 4 and Fig. 5 are refer to, as a kind of embodiment, height adjusting part includes front lay height adjusting screw rod 62
With swing rod shaft gear 63, swing rod shaft gear 63 is fixedly mounted on swing rod axle 21, swing rod shaft gear 63 and the high high adjustment spiral shell of front lay
Screw thread engaged transmission on bar 62.
The setting accuracy of front stop of printer requires at a relatively high, and the amplitude when being adjusted is also not too large, using spiral shell
Bar and the structure of gear engagement, on the one hand according to principle of moment balance, although equipment component is relatively bulky, but need to only be used smaller
Power can be adjusted；Even if on the other hand front lay height adjusting screw rod 62 rotates by a relatively large margin, driven swing rod shaft gear
63 also only can rotate less amplitude, and the adjustment amplitude of swing rod axle 21 is very slow, can effectively improve precision during regulation.
Fig. 3 and Fig. 7 are refer to, as a kind of embodiment, in addition to tilt adjustment component, tilt adjustment component includes bias
Bearing block 71, one end of drive shaft 42 is movably arranged in eccentric bearing block 71.
As a kind of embodiment, tilt adjustment component also includes front lay tilt adjustment screw rod 72 and travelling gear 73, transmission
Gear 73 is arranged between eccentric bearing block 71 and front lay tilt adjustment screw rod 72, the screw thread on front lay tilt adjustment screw rod 72 and
Travelling gear 73 is engaged, and drives eccentric bearing block 71 to rotate by travelling gear 73.
On swing rod axle 21 set eccentric bushing 61, swing rod axle 21 rotate when support surface fluctuating be it is uniform, so as to
To adjust the height of front lay；And drive shaft 42 only has one end to be provided in eccentric bearing block 71, therefore in eccentric bearing block
During 71 rotation, one end of drive shaft 42 is subjected to displacement, and the other end immobilizes, so that drive shaft 42 is relative to original position
Put and tilted, because the separate type construction of the front lay, by the way that the swing rod axle 21 wherein played a supportive role is adjusted, just
The position of whole front lay structure can be adjusted.
Fig. 5 and Fig. 6 are refer to, as a kind of embodiment, gear paper block 1 is provided with roller 12.
It is typically that will keep off the lateral paper guide that the end of paper block 1 is designed as upwarping in traditional front lay, guiding paper is smoothly sent to front lay
Gear paper block under, be easy to compacting position.The lateral paper guide for keeping off the end of paper block 1 is changed to roller 12, it is same when paper sheet delivery comes
Can play a part of guiding, but the sliding friction of paper will be become for rolling friction, make paper in course of conveying by
Resistance reduce, it is ensured that there is paper enough kinetic energy to reach front lay edge, the accuracy for contributing to increase to position.
The present invention also provides a kind of sheet-fed offset press front lay, including above-mentioned sheet-fed offset press front lay.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and techniques content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (9)
1. a kind of sheet-fed offset press front lay, including gear paper block, connecting rod, the short swing rod of front lay, swing rod axle, bearing pin, driving swing rod and
Drive shaft；Gear paper block is fixedly mounted on interlinking lever end, and the other end of connecting rod is flexibly connected by bearing pin and driving swing rod, driving pendulum
Bar is fixedly mounted on the driving shaft, and the short swing rod of front lay and connecting rod are movably arranged on swing rod axle, the short swing rod of front lay, connecting rod and driving
Swing rod is sequentially connected, and constitutes quadric chain.
2. sheet-fed offset press front lay according to claim 1, it is characterised in that also including stop actuator, support shaft,
Stopper arms and stop swing rod；Stop swing rod is fixedly connected with the drive shaft, follows drive shaft to swing；Stopper arms are movably arranged on
In support shaft, stop actuator and stopper arms connection, stop actuator can drive stopper arms around support shaft rotary motion；Stopper arms
It is overlapping between rotary motion trace and stop swing rod swinging track.
3. sheet-fed offset press front lay according to claim 2, it is characterised in that the stop actuator is cylinder.
4. sheet-fed offset press front lay according to claim 1, it is characterised in that described also including height adjusting part
Eccentric bushing is additionally provided with swing rod axle, eccentric bushing is fixedly connected with swing rod axle, the short swing rod of front lay and connecting rod are movably arranged on eccentric bushing
On, swing rod shaft end and the drive connection of height adjusting part.
5. sheet-fed offset press front lay according to claim 4, it is characterised in that the height adjusting part includes front lay
Height adjusting screw rod and swing rod shaft gear, swing rod shaft gear are fixedly mounted on swing rod axle, swing rod shaft gear and the high low-key of front lay
Save the screw thread engaged transmission on screw rod.
6. sheet-fed offset press front lay according to claim 1, it is characterised in that described also including tilt adjustment component
Tilt adjustment component includes eccentric bearing block, and one end of the drive shaft is movably arranged in eccentric bearing block.
7. sheet-fed offset press front lay according to claim 6, it is characterised in that before the tilt adjustment component also includes
Tilt adjustment screw rod and travelling gear are advised, the travelling gear is arranged between eccentric bearing block and front lay tilt adjustment screw rod,
Screw thread and travelling gear engagement on front lay tilt adjustment screw rod, drive eccentric bearing block to rotate by travelling gear.
8. sheet-fed offset press front lay according to claim 1, it is characterised in that gear paper block is provided with roller.
9. a kind of sheet-fed offset press, it is characterised in that before the sheet-fed offset press described in claim 1-8 any one
Rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312207.6A CN107097515B (en) | 2017-05-05 | 2017-05-05 | Front guide of sheet-fed offset press and sheet-fed offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710312207.6A CN107097515B (en) | 2017-05-05 | 2017-05-05 | Front guide of sheet-fed offset press and sheet-fed offset press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107097515A true CN107097515A (en) | 2017-08-29 |
| CN107097515B CN107097515B (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710312207.6A Active CN107097515B (en) | 2017-05-05 | 2017-05-05 | Front guide of sheet-fed offset press and sheet-fed offset press |
Country Status (1)
| Country | Link |
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| CN (1) | CN107097515B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757100A (en) * | 2017-11-27 | 2018-03-06 | 东台市康宏纸箱厂 | Pendulum-type front lay in a kind of combination for paper printing |
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| DE4239255A1 (en) * | 1992-11-21 | 1994-05-26 | Kba Planeta Ag | Prodn. of accurately aligned sheets of paper - involves set of stops engaging forward edge of sheet |
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| DE3037776A1 (en) * | 1980-01-21 | 1981-07-30 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | Printing press alignment stop control - has mechanism with shaft in eccentric bearings on bell-crank lever |
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| CN107757100A (en) * | 2017-11-27 | 2018-03-06 | 东台市康宏纸箱厂 | Pendulum-type front lay in a kind of combination for paper printing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107097515B (en) | 2023-01-31 |
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Denomination of invention: Front gauge of single sheet offset printing machine and single sheet offset printing machine Effective date of registration: 20230626 Granted publication date: 20230131 Pledgee: Bank of China Limited Zhuji sub branch Pledgor: ZHEJIANG TONGDE DIGITAL PRINTING EQUIPMENT MANUFACTURING CO.,LTD. Registration number: Y2023980045636 |
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