Utility model content
In view of technical problem present in background technology, the technical problem that the utility model solves aims to provide a kind of energy
The plate cylinder and transfer platen of various outer diameter are enough changed, makes plate cylinder and the outer surface girth of transfer platen(That is cylinder face)With printing
The printed patterns length of product is corresponding, and without retracting during printing, it is steady that printed matter walks material, can improve print speed printing speed and printing efficiency,
Improve the printing mechanism of the offset press of printing precision and printing effect.
In order to solve the above technical problems, the utility model adopts the following technical scheme that:The printing mechanism of offset press, including
There are plate cylinder, transfer platen and impression cylinder, it is characterised in that:Plate cylinder is set on edition axle, and transfer platen is set in transfer
On axle, impression cylinder carries out rotation setting, plate cylinder and transfer platen Corresponding matching in frame, and plate cylinder is protected with transfer platen
Crimping is held to rolling, version axle carries out rotation setting in frame, and transfer axle is rotated around its axial line and set, and transfers the axial line of axle
Position transfer axle running orbit on settings is adjusted, from different size external diameter transfer platen when, regulation transfer axle axle
Position of the heart line on transfer axle running orbit, the transfer platen of different size external diameter is set to keep crimping with impression cylinder pair
Rolling.
Frame is provided with curved groove, and curved groove forms transfer axle running orbit, and the transfer axle of transfer platen passes through mounting seat
It is arranged on curved groove, the transfer axle of transfer platen rotates setting in mounting seat, and mounting seat position adjustments on curved groove are set
Put.
It is arc track to transfer axle running orbit, the transfer platen of optional three different size external diameters, on the arc track
Corresponding three axle center line positions with transfer axle, the transfer platen on three axle center line positions are kept with impression cylinder respectively
Crimping is to rolling.
Three different size external diameters choose maximum outside diameter, minimum outer diameter and intermediate outer respectively.
Setting is adjusted in radial position of the impression cylinder in frame.
Transfer axle, which is arranged in swing arm, to be rotated, and swing arm swings setting in frame, and swing arm swings to form transfer axle operation rail
The arc track of mark and the axial line of transfer axle is set to carry out position adjustments on the arc track.
Swing arm is arranged in frame by arm shaft and swung, and setting is adjusted in radial position of the arm shaft in frame.
Swing arm by drive device drive in frame around arm shaft carry out reciprocally swinging, the drive device include push rod,
Push rod, cylinder transmission device and spindle gear, cylinder transmission device include cylinder, and spindle gear includes silk
Bar, screw and sliding block, screw are arranged on sliding block, and screw mandrel is lifted by power source drive driving wire master tape movable slider in frame,
Push rod is hinged in swing arm, and push rod is hinged on sliding block, and push rod is hinged with push rod, and push rod or/and push rod also pass with cylinder
Dynamic connection.
Cylinder uses double stroke cylinder or double cylinders, and the piston rod and push rod, push rod of cylinder are hinged, and cylinder is in gas
Swing and set in cylinder seat.
Frame is provided with plate cylinder replacement port, and the first end cap is arranged on plate cylinder replacement port, axle is provided with the first end cap
Hold and coordinate with version axle;Frame is provided with transfer platen replacement port, and swing arm is located at transfer platen replacement port sidepiece, and swing arm is provided with the
Two end caps, the second end cap are arranged on the end cap installing port of swing arm, and bearing is provided with the second end cap and is coordinated with transfer axle.
The beneficial effects of the utility model are that the printing mechanism of the offset press can change the plate cylinder of various outer diameter specification
And transfer platen, the printing of different printing pattern length is realized, and ensure continuous between the printed patterns each unit on roll web(It is empty
Almost do not have in vain), roll web utilization rate is lifted and roll web need not retract, and effectively improves print speed printing speed and printing efficiency, and not
Paper paper feed can be influenceed, paper tension is steady, can improve printing precision.Therefore, the utility model has compared with prior art
Substantive distinguishing features and progress.
Embodiment
Referring to accompanying drawing, the printing mechanism of offset press in present embodiment, include plate cylinder 1, transfer platen 4 and impressing rolling
Cylinder 2, coordinated by three rollers and realize paper printing.Plate cylinder 1 is set on edition axle 16, and transfer platen set 4 is located at transfer axle
On 21, therefore the plate cylinder and transfer platen of various outer diameter specification can be changed in axle.Between axle and roller set alignment pin and
Breach carries out being mutually located cooperation, it is ensured that is slided between axle and roller without relative.Elastic layer can also be set in roller endoporus,
Stomata is set on axle, blown by source of the gas, Air Valve Control stomata, when roller is set on axle, axle stomata is by air blowing spreading roller
The elastic layer of endoporus, after drum sleeve is set to position, stops stomata and blow, roller endoporus elastic layer contracts are held tightly in axle.
Impression cylinder 2 carries out rotation setting, impression cylinder configuration motor 19 in frame(Such as servomotor)Driving is carried out
Rotate, plate cylinder 1 and the Corresponding matching of transfer platen 4, i.e. pattern unit N on the cylinder face Corresponding matching plate cylinder 1 of transfer platen 4
Times, N is positive integer, preferably one times or two times, so that printed patterns shift.Such as plate cylinder 1 and the specification of transfer platen 4(Typically
Refer to external diameter)Identical or slightly deviation, the pattern unit that the cylinder face of transfer platen 4 can just be on Corresponding matching plate cylinder 1
(One times of relation);Or make 4 faces of transfer platen(That is outer surface girth)Pattern unit on corresponding two plate cylinder(Two times
Relation).Referring to accompanying drawing, in the present embodiment, using one times of relation, specification identical plate cylinder and transfer platen will be selected.
Plate cylinder 1 is kept crimping to rolling with transfer platen 4, and the pattern on plate cylinder is transferred in transfer platen, version axle
16 carry out rotation setting in frame 3, and version axle 16 configures motor 13(Such as servomotor)Driving is rotated, and is driven on edition axle
Plate cylinder rotated.Transfer axle 21 and rotate setting around its axial line, transfer axle 21 configures motor 20(Such as servomotor)Drive
It is dynamic to be rotated, and drive the transfer platen 4 on transfer axle 21 to be rotated, the position of axial line of axle 21 is transferred in transfer axle
Setting is adjusted on running orbit 40, from different size external diameter transfer platen when, regulation transfer the axial line of axle 21 turn
The position on axle running orbit 40 is printed, makes the transfer platen 4 of different size external diameter keep crimping to rolling with impression cylinder 2.Turn
Roller and plate cylinder external diameter Corresponding matching are printed, and keeps crimping to rolling, while transfer platen keeps crimping to rolling with impression cylinder,
Therefore during the pattern of printing different length, it is possible to change corresponding plate cylinder and transfer platen, then adjust the axle of transfer axle
Heart line position, transfer platen is allowed to be kept crimping with plate cylinder to rolling, transfer platen keeps crimping to rolling, roll web with impression cylinder
On printed patterns each unit between it is continuous, the lifting of roll web utilization rate and roll web without retracting, effectively improve print speed printing speed and
Efficiency, and paper tension is steady, and it is stable to walk material.
Frame 3 is provided with curved groove, and curved groove is such as opened up on the wallboard of frame 3, and curved groove forms transfer axle operation rail
Mark, the transfer axle 21 of transfer platen are arranged on curved groove by mounting seat, and the transfer axle of transfer platen rotates in mounting seat
Set, mounting seat position adjustments on curved groove are set, and axle axle is transferred by adjusting position adjustments of the mounting seat on curved groove
Position of the heart line on transfer axle running orbit.
Transfer axle running orbit 40 is arranged to arc track, appoints the transfer platen for taking three different size external diameters, the circle
Corresponding three axle center line positions with transfer axle, i.e. three axial line position correspondences, three different size external diameters on arc track
Transfer platen installation site, transfer platen on three axle center line positions keeps crimp to rolling with impression cylinder respectively
(Perfect condition is circumscribed for holding).Three axle center line positions can just determine arc track, and three rule are ensured on arc track
The transfer platen of lattice can keep crimping to rolling with plate cylinder and impression cylinder.Respectively in these three axles on arc track
Other positions near heart line position, by applying different pressures, it can also allow other specifications(Appoint and take outside three specifications)
The transfer platen of external diameter keeps crimping to rolling with impression cylinder and roller cylinder.Three different size external diameters can choose maximum respectively
External diameter, minimum outer diameter and intermediate outer, such as 245mm, 145mm, 200mm.
Setting is adjusted in radial position of the impression cylinder 2 in frame 3, i.e., can change adjustment impression cylinder 2 in machine
Radial position on frame.In impression cylinder initial position, initial position refers to before impression cylinder carries out position adjustment, is located at
Transfer platen on three axle center line positions keeps crimping to rolling with initial position impression cylinder respectively.Adjusting setting can incite somebody to action
The central rotating shaft of impression cylinder 2 is arranged on excentric sleeve 23, by adjusting position of the excentric sleeve in frame so as to pressure
Print roller and carry out radial position regulation.Transfer axle running orbit 40 is arranged to arc track, it is difficult to ensure that except arc track
The transfer platen on transfer axle outside three axle center line positions keeps crimping to rolling with plate cylinder and impression cylinder simultaneously, leads to
Cross and radially external regulation is carried out to impression cylinder, then crimping is to rolling between may insure each roller.
Arc track can be the form that arc groove is set in frame.In the present embodiment, by the form of swing arm 5,24,
Specifically, the transfer axle 21 of transfer platen is arranged on swing arm 5,24(Divide horizontal swinging arm)Upper rotation, transfer axle 21 is around its axle center
Line rotates, and swing arm 5,24 swings setting in frame 3, and swing arm 5,24 swings and forms arc track, that is, transfers axle running orbit 40,
The axial line of transfer axle 21 is set to carry out position adjustments on the arc track by swinging.
The arc track formed using swing arm form, which equally exists three axle center line positions, can just determine arc track,
The transfer platen of three specifications is at least ensured that on arc track to be kept crimping to rolling with plate cylinder and impression cylinder
(Perfect condition is circumscribed for holding), can at least realize the regulation of three specifications.It can also pass through pressure near three specifications
Regulation keeps crimping to rolling, but the transfer platen on the transfer axle of the other positions on arc track is difficult to while and plate cylinder
And impression cylinder keeps crimping to rolling, to ensure between each roller crimping to rolling, except to impression cylinder in frame
Radial position is adjusted outside setting, and setting arc track can also be adjusted, and regulation setting can also change regulation roller
Between squeegee pressure size.For example swing arm 5,24 is arranged in frame 3 by arm shaft 22 and swung, arm shaft 22 is in frame 3
Radial position setting is adjusted, i.e., can change adjustment the radial position in frame of arm shaft 22, it is initial in arm shaft 22
Opening position, initial position refer to that before arm shaft carries out position adjustment the transfer platen on three axle center line positions is divided
Do not keep crimping to rolling with impression cylinder, be adjusted by the radial position to arm shaft, so that arc track enters line position
Put regulation.Regulation setting arm shaft can be arranged on excentric sleeve, by adjust position of the excentric sleeve in frame from
And radial position regulation is carried out to arm shaft.
Swing arm 5,24 is driven by drive device and carries out reciprocally swinging around arm shaft in frame 3, and the drive device can be straight
Connect using cylinder top pushing arm or swung using the driving swing arm of screw mandrel gas-distributing motor.Following knot will preferably be used by being used as in the present embodiment
Structure:The drive device includes push rod 6, push rod 8, cylinder transmission device and spindle gear, cylinder transmission device and included
Cylinder, spindle gear include screw mandrel 11, screw and sliding block 9, and screw is arranged on sliding block 9, and screw mandrel 11 is by power source 12
(Such as servomotor, torque motor)Driving driving wire master tape movable slider 9 lifts in frame, sets guide rail 7 to supply sliding block in frame
Lifted, push rod 6 is hinged in swing arm 5, and push rod 8 is hinged on sliding 9 pieces, and push rod is hinged with push rod, push rod and cylinder
Either push rod and cylinder-driven connection or the pin joint between push rod and push rod are connected with cylinder-driven for drive connection, by cylinder
Coordinate driving push rod and push rod action.In the present embodiment, when drive device works, the drive screw of power source 12, screw mandrel 11 is driven
Screw band movable slider 9 is lifted in frame, and sliding block will be swung back and forth by push rod, push rod and cylinder mating band movable pendulum arm, just
After walking in place, power source stops drive screw, and swing arm is withstood in cylinder ventilation source pressurization, and the air pressure change for passing through cylinder is adjusted, energy
Transfer platen in swing arm is enough adjusted to keep crimping the pressure to rolling with impression cylinder and plate cylinder.When the sliding block of spindle gear
By screw mandrel and screw lifting locking in frame after, when being avoided that printing transfer platen bounce, shake, avoid the occurrence of black thick and show
As.Cylinder uses double stroke cylinder or double cylinders, and the piston rod and push rod, push rod of cylinder are hinged, and cylinder is in cylinder block
Upper swing is set, and cylinder can carry out two-pass work using double stroke cylinder or double cylinders, and one can be set in two-pass
Small stroke, it can be swung carrying out the small stroke of swing arm, transfer platen and other two rollers separated, is overhauled or debugged.
Using double cylinders 25,26 in figure.
Frame 3 is provided with plate cylinder replacement port, and the first end cap 17 is arranged on plate cylinder replacement port, is set in the first end cap 17
There is bearing 18 to coordinate with version axle 16;Frame 3 is provided with transfer platen replacement port 15, and swing arm 5 is located at the side of transfer platen replacement port 15
Portion, it is outside in the present embodiment, naturally it is also possible to be arranged on inner side.Swing arm 5 is provided with the second end cap 27, and the second end cap is arranged on
On the end cap installing port of swing arm, bearing 10 is provided with the second end cap 27 and is coordinated with transfer axle 21, groove can also be provided with wallboard
For the transfer axle activity in swing arm.Swing arm 5,24 is set up separately in the left and right sides of frame plate in the present embodiment, plate cylinder replacement port,
Transfer platen replacement port is respectively positioned on the frame plate on right side, sets end cap installing port to pacify for the second end cap 27 in right side swing arm 5
Dress.Carrying out changing drum functions explanation by taking swing arm as an example, when changing roller, swing arm is rocked to the position of transfer platen replacement port,
The second end cap in the swing arm of right side is pulled down and separated with transfer axle, separation rear-swing arm is pulled down and swings concede transfer platen replacement port again
Position, it is possible to the transfer platen transferred on axle is changed, rear-swing arm has been changed and has been rocked at transfer axle again by the
Two end caps are loaded onto to be coordinated with transfer axle;The first end cap is opened on other wallboard, by plate cylinder from version axle at plate cylinder replacement port
On pull down and changed, the first end cap is reinstalled again after replacing.