CN1611369A

CN1611369A - Printer device and printing method

Info

Publication number: CN1611369A
Application number: CN 200410087751
Authority: CN
Inventors: 小林一喜
Original assignee: Tohoku Ricoh Co Ltd
Current assignee: Tohoku Ricoh Co Ltd
Priority date: 2003-10-31
Filing date: 2004-10-29
Publication date: 2005-05-04
Anticipated expiration: 2024-10-29
Also published as: CN100333903C; JP2005132040A

Abstract

The invention provided printing equipment, which is equipped with a plurality of plate cylinders and prevents troubles such as the dispersion of printing positions from developing under the condition that the sagging of paper is prevented from developing even when a short sheet of paper is printed, and a printing method employed therefor. This printing equipment 100 has a plurality of the plate cylinders 1A and 1B, a carrying means for carrying paper 35 from the plate cylinder 1A to the plate cylinder 1B and a printing position adjusting means, which coincides a first printing position or the printing position by the plate cylinder 1A to the paper 35 with a second printing position or the printing position by the plate cylinder 1B to the paper 35 by shifting the relative position between the first printing position and the second printing position by the predetermined amount as compared with the amount required when the length L1 of the paper 35 is longer than the length L2 or the distance between the plate cylinder 1A and the plate cylinder 1B if the length L1 is shorter than the length L2. Printing is performed by the printing equipment 100 when the length L1 is shorter than the length L2 by utilizing the printing position adjusting means.

Description

Printing equipment and printing process

Technical field

The present invention relates to printing equipment such as a kind of hole plate print device and use the printing process of this printing equipment with a plurality of plate cylinders, though particularly relate to a kind of when on the short paper of length, printing, on the paper by the printing position of each plate cylinder gained also consistent printing equipment and printing process.

Background technology

In the past, used printing equipment for printing of carrying out many etc.As printing equipment, known have a for example hole plate print device.As hole plate print device, temperature-sensitive numeral hole plate print device behaviour institute as described below is known, promptly use plate cylinder and with thermoplastic resin film, the hole plate originals of the laminated plate structure that the applying of porous matter supporting mass forms, the film surface of this master is added hot piercing plate-making back circumvolution on plate cylinder with thermal head, and supply with black by the black supply unit that is arranged at plate cylinder inside, press against paper on the plate cylinder continuously with dipper crowding gears such as pressure rollers, by the plate cylinder aperture portion, the master perforated portion oozes out China ink to print, wherein, described plate cylinder is the structure of the filter screen that package has multi-layer resinous or metal dictyosome on porous supporting cylinder body and rotates freely, described thermoplastic film is generally the roughly thickness about 1～3 μ mm, and described porous matter supporting mass generally uses the Japan paper fiber, the mixture of synthetic fibers or Japan paper and synthetic fibers.

In recent years, in such printing equipment, carry out polychrome printing as being used for the gift purposes or carry out the method for two-face printing etc. for conserves paper, method of printing is carried out on the two sides and adopt every kind of different plate cylinder of color replacement printed or paper turning transported.But, in such printing process, for printing and in positive and negative each face printing on a kind of color of a kind of color ground, need to discharge, stacked paper is readjusted and place sheet feed section once more, thereby have the problem of presswork trouble.And when paper supply once more, the China ink of transferring on the paper that has printed can adhere on the delivery section that is deposited in paper, thereby has the problem that need clean.In addition,, just need the time that makes China ink dry, thereby have the problem of inefficiency if prevent the pollution of described delivery section.

Therefore, proposed the scheme of such printing equipment, it disposes a plurality of plate cylinders, carries out polychrome printing or two-face printing (for example [patent documentation 1]) by once failing paper.In such printing equipment, it is the conveying of between plate cylinder, carrying out paper, so generally use the absorption conveying device between plate cylinder, described absorption conveying device has conveyer belt and attracts fan, carry while use the attraction fan that paper is adsorbed on the conveyer belt.In such absorption conveying device, adopted following structure, promptly by conveyer belt is rotated than the fast several one-tenth of the peripheral speed of plate cylinder ground, come to the paper that is about to be adsorbed on the conveyer belt and peels off from plate cylinder working tension a little, with prevent owing to paper and plate cylinder the plate cylinder of downstream one side that deflection produces and the dislocation between the paper take place when peeling off, and therefore prevent the problem such as discrete in deterioration, image dislocation, the printing position of damping.

[patent documentation 1] spy opens flat 7-17121 communique

But, if adopt such structure, then under the situation that length is printed less than the paper of the span of the plate cylinder of the plate cylinder of upstream one side and downstream one side, when the plate cylinder of paper rear end one side from the upstream breaks away from, paper quickens by the transporting velocity of the paper absorption conveying device bigger than plate cylinder and carries, so with length is compared greater than the situation that the paper of the span of plate cylinder prints, top of form can earlier arrive the plate cylinder of downstream one side, and becomes the deterioration of damping, the image dislocation, the reason of the discrete grade in printing position.Therefore, under the situation that length is printed less than the paper of the span of plate cylinder, for preventing dispersing of printing position etc., all need to readjust the printing position according to the length of paper at every turn, thereby make the presswork trouble that becomes, this problem be use under the situation of the longer paper of carrying between the plate cylinder of the plate cylinder of upstream one side and downstream one side impossible.

Summary of the invention

The object of the invention is to provide a kind of printing equipment and printing process, it is the printing process that has the printing equipment such as hole plate print device of a plurality of plate cylinders and use this printing equipment, even under the situation of printing on the short paper of length, also can prevent the problem such as discrete in the lax and printing position of paper.

For achieving the above object, technical scheme 1 described invention is a kind of printing equipment, have: a plurality of plate cylinders that comprise the 1st plate cylinder and the 2nd plate cylinder at least, from the conveying mechanism of the 1st plate cylinder to the 2nd plate cylinder conveyance of sheets, and the printing equipment of printing position guiding mechanism, wherein said printing position guiding mechanism is when the length of paper is shorter than the length between the 1st plate cylinder and the 2nd plate cylinder, making as the 1st plate cylinder is to compare the ormal weight that staggers more than the length between the 1st plate cylinder and the 2nd plate cylinder time with respect to the 1st printing position in the printing position of paper with as the 2nd plate cylinder with respect to the relative position in the 2nd printing position in the printing position of paper and the length of paper, makes the 1st printing position consistent with the 2nd printing position thus.

Technical scheme 2 described inventive features are in technical scheme 1 described printing equipment, and (((V2-V1)/V2) tries to achieve afore mentioned rules amount X to above-mentioned printing position guiding mechanism for (V2-V1)/V1) or X=(L2-L1) by X=(L2-L1).(wherein, L1: the length of paper; L2: the length between the 1st plate cylinder and the 2nd plate cylinder; V1: the rotary speed of the 1st plate cylinder; V2: by the transporting velocity of the paper of conveying mechanism gained.)

Technical scheme 3 described inventive features are in technical scheme 1 or 2 described printing equipments, above-mentioned printing position guiding mechanism makes the 1st printing position consistent with the 2nd printing position by the relative phase that makes the 1st plate cylinder and the 2nd plate cylinder afore mentioned rules amount that staggers.

Technical scheme 4 described inventive features are in technical scheme 3 described printing equipments, has the phase adjustment mechanism of adjusting the phase place between the 1st plate cylinder and the 2nd plate cylinder, above-mentioned printing position guiding mechanism makes the 1st printing position consistent with the 2nd printing position by driving above-mentioned phase adjustment mechanism.

Technical scheme 5 described inventive features are in each described printing equipment in technical scheme 1 to 4, above-mentioned printing position guiding mechanism makes the 1st printing position consistent with the 2nd printing position by making to the plate-making position that is wrapped in the 1st master on the 1st plate cylinder and the relative position between the plate-making position that is wrapped in the 2nd master on the 2nd plate cylinder afore mentioned rules amount that staggers.

Technical scheme 6 described inventive features are in technical scheme 5 described printing equipments, have: the 1st plate-making mechanism that possesses the 1st perforated member of the plate-making of carrying out the 1st master, and the 2nd plate-making mechanism that possesses the 2nd perforated member of the plate-making of carrying out the 2nd master, above-mentioned printing position guiding mechanism by making the 1st perforated member actuation time and the actuation time of the 2nd perforated member relatively stagger, make the 1st printing position consistent with the 2nd printing position.

Technical scheme 7 described inventive features are in each described printing equipment in technical scheme 1 to 6, above-mentioned printing position guiding mechanism to be to be benchmark by the plate cylinder of one side of the upstream on the sheet transport direction with respect to the printing position of paper, adjusts by the plate cylinder of one side of the downstream on the sheet transport direction printing position with respect to paper.

Technical scheme 8 described inventive features are in each described printing equipment in technical scheme 1 to 7, have the yardage testing agency of the length that detects paper.

Technical scheme 9 described inventive features are in each described printing equipment in technical scheme 1 to 8, and above-mentioned yardage testing agency is arranged on to above-mentioned a plurality of plate cylinders and supplies with in the paper-feeding mechanism of paper.

Technical scheme 10 described inventions are a kind of printing process, the described printing equipment of in the operation technique scheme 1 to 9 each, when the length of paper is shorter than the length between the 1st plate cylinder and the 2nd plate cylinder, the relative position that makes the 1st printing position and the 2nd printing position and the length of paper are to compare the ormal weight that staggers more than the length between the 1st plate cylinder and the 2nd plate cylinder time, make the 1st printing position consistent with the 2nd printing position thus.

The present invention is a kind of printing equipment, have: a plurality of plate cylinders that comprise the 1st plate cylinder and the 2nd plate cylinder at least, from the conveying mechanism of the 1st plate cylinder to the 2nd plate cylinder conveyance of sheets, and the printing equipment of printing position guiding mechanism, wherein said printing position guiding mechanism is when the length of paper is shorter than the length between the 1st plate cylinder and the 2nd plate cylinder, making as the 1st plate cylinder is to compare the ormal weight that staggers more than the length between the 1st plate cylinder and the 2nd plate cylinder time with respect to the 1st printing position in the printing position of paper with as the 2nd plate cylinder with respect to the relative position in the 2nd printing position in the printing position of paper and the length of paper, make the 1st printing position consistent thus with the 2nd printing position, therefore can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and can easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

(((V2-V1)/V2) tries to achieve afore mentioned rules amount X (wherein, L1: the length of paper to the printing position guiding mechanism for (V2-V1)/V1) or X=(L2-L1) by X=(L2-L1); L2: the length between the 1st plate cylinder and the 2nd plate cylinder; V1: the rotary speed of the 1st plate cylinder; V2: by the transporting velocity of the paper of conveying mechanism gained), like this, can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and can be according to the rotary speed V1 of length L the 1, the 1st plate cylinder of paper and length L the 2, the 1st plate cylinder between the 2nd plate cylinder, by the transporting velocity V2 of the paper of conveying mechanism gained, hold and and correctly make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

The printing position guiding mechanism is by the relative phase that makes the 1st plate cylinder and the 2nd plate cylinder afore mentioned rules amount that staggers, make the 1st printing position consistent with the 2nd printing position, like this, can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and can be by adjusting the relative phase of the 1st plate cylinder and the 2nd plate cylinder, easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

Has the phase adjustment mechanism of adjusting the phase place between the 1st plate cylinder and the 2nd plate cylinder, the printing position guiding mechanism is by driving above-mentioned phase adjustment mechanism, make the 1st printing position consistent with the 2nd printing position, like this, can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and by being used to adjust the phase adjustment mechanism of the phase place between the 1st plate cylinder and the 2nd plate cylinder, can easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

The printing position guiding mechanism is by making to the plate-making position that is wrapped in the 1st master on the 1st plate cylinder and the relative position between the plate-making position that is wrapped in the 2nd master on the 2nd plate cylinder afore mentioned rules amount that staggers, make the 1st printing position consistent with the 2nd printing position, like this, can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and by adjusting plate-making position and the relative position between the plate-making position of the 2nd master to the 1st master, can easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

Have: the 1st plate-making mechanism that possesses the 1st perforated member of the plate-making of carrying out the 1st master; And the 2nd plate-making mechanism that possesses the 2nd perforated member of the plate-making of carrying out the 2nd master, above-mentioned printing position guiding mechanism by making the 1st perforated member actuation time and the actuation time of the 2nd perforated member relatively stagger, make the 1st printing position consistent with the 2nd printing position, like this, can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and this simple control of relatively staggering the actuation time by making the 1st perforated member and the actuation time of the 2nd perforated member, can adjust plate-making position and the relative position between the plate-making position of the 2nd master to the 1st master, the cost rising that inhibition produces because of increasing new structure, can also easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

The printing position guiding mechanism is being benchmark by the plate cylinder of one side of the upstream on the sheet transport direction with respect to the printing position of paper, adjust by the plate cylinder of one side of the downstream on the sheet transport direction printing position with respect to paper, like this, can provide a kind of such printing equipment: even under the situation of printing on the short paper of length, also can prevent the lax of paper, and by adjusting the relative phase of the 1st plate cylinder and the 2nd plate cylinder, can easily make the 1st printing position consistent on original printing position with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

Yardage testing agency with the length that detects paper, like this, can provide a kind of such printing equipment: on the short paper of length, print and detect under the length situation littler easily detecting than specific length by yardage testing agency by yardage testing agency, can prevent the lax of paper, and can easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

Note detection mechanism is arranged on to above-mentioned a plurality of plate cylinders and supplies with in the paper-feeding mechanism of paper, like this, can provide a kind of such printing equipment: in paper-feeding mechanism, detect the length of paper reliably and detect length than under the short situation of specific length by yardage testing agency, can prevent the lax of paper, and can easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

The present invention is a kind of printing process, the described printing equipment of in the operation technique scheme 1 to 9 each, when the length of paper is shorter than the length between the 1st plate cylinder and the 2nd plate cylinder, the relative position that makes the 1st printing position and the 2nd printing position and the length of paper are to compare the ormal weight that staggers more than the length between the 1st plate cylinder and the 2nd plate cylinder time, make the 1st printing position consistent thus with the 2nd printing position, therefore, can provide a kind of such printing process: utilize printing equipment to print with above-mentioned various effects, even under the situation of printing on the short paper of length, also can prevent the lax of paper, and can easily make the 1st printing position consistent with the 2nd printing position, prevent problems such as dispersing of printing position, carry out good printing.

Description of drawings

Fig. 1 uses the front view of the summary of printing equipment of the present invention for expression.

Fig. 2 is installed on the front view of the phase adjustment mechanism on the printing equipment shown in Figure 1 for expression.

Fig. 3 bit representation is installed on the structure of the controlling organization on the printing equipment shown in Figure 1 and the block diagram of coupled each several part.

Fig. 4 is for the rotary speed V1 of expression length L the 1, the 1st plate cylinder of paper and length L the 2, the 1st plate cylinder between the 2nd plate cylinder, by the schematic diagram of the transporting velocity V2 of the paper of conveying mechanism gained.

The flow chart of the control that Fig. 5 is undertaken by controlling organization shown in Figure 3 for expression.

The flow chart of the control that Fig. 6 is undertaken by the controlling organization in other modes for expression.

Fig. 7 is the concept map of the summary of the printing equipment of other modes of expression.

The specific embodiment

Figure 1 illustrates the one-piece type hole plate print device of temperature-sensitive numeral plate-making, the one-piece type hole plate print device of described temperature-sensitive numeral plate-making is as having used the present invention, can having formed the stencil printing device of the printing equipment of black-and-white image or chromatic image.Hole plate print device 100 has and is used for respectively a plurality of plate cylinders that the China ink with mutual different colours prints, specifically, have as the 1st printing cylinder 1A of the 1st plate cylinder and as the 2nd printing cylinder 1B (following note is respectively made " printing cylinder 1A ", " printing cylinder 1B ") of the 2nd plate cylinder.Printing cylinder 1A and printing cylinder 1B are set up in parallel mutually, wherein printing cylinder 1A is configured in upstream one side of the sheet transport direction represented with arrow Z (following note is made " sheet transport direction Z "), and printing cylinder 1B is configured in than printing cylinder 1A more by downstream one side of sheet transport direction Z, is the left side among Fig. 1.

In the manner,, annotate with mark A at the end of figure notation for the component parts corresponding with printing cylinder 1A; For the component parts corresponding, annotate with mark B at the end of figure notation with printing cylinder 1B.And, to having the component parts of same function and structure, annotate with identical figure notation and also omit repeat specification as far as possible.

Hole plate print device 100 in apparatus main body printing cylinder 1A and printing cylinder 1B around have respectively:

pressure roller

2A, 2B, plate-making for version device 3A, a 3B, remove version device 88A, a 88B, maintaining

body

5A, 5B, disengaging pawl 7A, disengaging pawl 7B and air-flow generating mechanism 120A, air-flow generating mechanism 120B, wherein, described

pressure roller

2A, 2B are as the dipper crowding gear of platen member; Described plate-making supplies version device 3A, 3B as the 1st plate-making mechanism, the 2nd plate-making mechanism; Described version device 88A, the 88B of removing is shown in Fig. 3, peels off discarded from printing cylinder 1A and printing cylinder 1B the master that uses; The locational card locking mechanism that described maintaining

body

5A, 5B leave as the outer peripheral face separately (following note is made " cylinder outer peripheral face 1Aa ", " cylinder outer peripheral face 1Ba ") that

pressure roller

2A, 2B is remained on from printing cylinder 1A, 1B; Described disengaging pawl 7A, disengaging pawl 7B and air-flow generating mechanism 120A, air-flow generating mechanism 120B peel off fan as being used to make the paper 35 that prints to peel off fan, the 2nd from the 1st separation claw, the 2nd separation claw and the 1st of printing cylinder 1B separation respectively.

Hole plate print device 100 also has: paper feed 4, conveying device 21, discharge tray 45, original document reading apparatus and guidance panel, and wherein, described paper feed 4 is as loading paper 35 and with its paper-feeding mechanism of supplying with to printing cylinder 1A, 1B; Described conveying device 21 is disposed between printing cylinder 1A and the printing cylinder 1B, and as the conveying mechanism that paper 35 is carried to printing cylinder 1B from printing cylinder 1A; Described discharge tray 45 loads the paper that prints; Described original document reading apparatus and guidance panel do not illustrate in the drawings, and it is disposed at device body upper, and as scanner.

Printing cylinder 1A and printing cylinder 1B are positioned at plate-making and reach the below of removing the version device for version device 3A, 3B.Printing cylinder 1A and printing cylinder 1B are the cylindric structure of known porous with porous supporting

cylinder body

1a, 1b and multistorey strainer mesh, and wherein, described porous supporting

cylinder body

1a, 1b have peristome 1a1,1b1 and non-peristome 1a2,1b2; The filter screen of described multilayer covers the periphery that

porous coats cylinder

1a, 1b, and does not illustrate in the drawings.Filter screen is made of resin or metal dictyosome etc.

Printing cylinder 1A and printing cylinder 1B also have the 1st 41A, the 2nd 41B and the 1st clamper 42A, the 2nd clamper 42B on the part corresponding with non-peristome 1a2, the 1b2 of cylinder outer peripheral face 1Aa, 1Ba, wherein, described the 1st 41A, the 2nd 41B form along the bus of printing cylinder 1A, 1B and by magnet; Described the 1st clamper 42A, the 2nd clamper 42B are mounted pivotably, opening and closing with respect to the 1st 41A, the 2nd 41B.

The 1st clamper 42A and the 2nd clamper 42B open and close on assigned position by not shown opening and closing device.Printing cylinder 1A and printing cylinder 1B are bearing on drum shaft 25A as the 1st black pipe, the drum shaft 25B as the 2nd black pipe freely via

drum flange

20A, 20B rotation.The two ends of

drum shaft

25A, 25B are fixed on the not shown side plate that is arranged on removably on the apparatus main body to last.Printing cylinder 1A, printing cylinder 1B are driven by main body motor shown in Figure 2 81 and rotate on the direction of arrow shown in Figure 1, so that the rotary speed V1 of cylinder outer peripheral face 1Aa, 1Ba is 1000mm/s.

As shown in Figure 1, dispose respectively in the inside of printing cylinder 1A, 1B: ink roller 60A, ink roller 60B and scrape slurry roller 61A, scrape slurry roller 61B, wherein said ink roller 60A, ink roller 60B are respectively as the 1st ink roller and the 2nd ink roller that constitute the long-pending black 62A of portion, 62B; Describedly scrape slurry roller 61A, scrape slurry roller 61B and be configured in the 1st on ink roller 60A, the 60B with gap and scrape slurry roller and the 2nd and scrape the slurry roller as being provided with a little respectively.The long-pending black 62A of portion, 62B are respectively formed at by ink roller 60A and scrape wedge-like space that slurry roller 61A forms and by ink roller 60B with scrape and starch in the wedge-like space that roller 61B forms.

The axial region of

ink roller

60A, 60B respectively by the side plate that is set with

drum shaft

25A, 25B to rotation supporting freely, and respectively via not shown driving connecting gear, drive and synchronously rotate along the direction of arrow and printing cylinder 1A, 1B by main body motor 81 with not shown gear or conveyer

belt.Ink roller

60A, 60B stir the China ink among the long-pending black 62A of portion, the 62B and it are extended by rotating, and the China ink process ink roller 60A among the long-pending black 62A of portion, the 62B, the outer surface of 60B are supplied on the cylinder inner peripheral surface.

Drum shaft

25A, 25B have the effect of black supply pipe respectively.

Drum shaft

25A, 25B are formed with not shown a plurality of holes as supply hole respectively on it is axial.The end of

drum shaft

25A, 25B respectively via not shown pump be connected the China ink of taking in different colours, on the not shown ink fountain of the outside that is arranged on printing cylinder 1A, printing cylinder 1B.

When the China ink amount in detect the long-pending black 62A of portion, 62B by not shown black sensor reduced, the China ink in the ink fountain was attracted by pump, and a plurality of holes on being formed at

drum shaft

25A, 25B are supplied to the long-pending black 62A of portion, the 62B.The long-pending black 62A of portion is provided with the China ink of black, and the long-pending black 62B of portion is provided with red China ink.

Again, printing cylinder 1A and printing cylinder 1B are integral with the black supply unit etc. that comprises

ink roller

60A, 60B and

scrape slurry roller

61A, 61B respectively, and dismantled and assembled with respect to apparatus main body as assembly.

Plate-making has respectively for version device 3A, 3B:

master roller

32A, 32B,

thermal head

33A, 33B,

air roll

34A, 34B, shut-

off mechanism

35A, 35B, master conveying roller are to 36A, 36B and

guide plate

37A, 37B, wherein, described

master roller

32A, 32B be with as the master 31A of the 1st master, be rolled into the roller shape as the master 31B of the 2nd master and form; Described

thermal head

33A, 33B are respectively as the 1st perforated member and the 2nd perforated member that utilize heat to carry out the perforation of

master

31A, 31B; Described

air roll

34A, 34B and

thermal head

33A, 33B dispose opposed to each other; Described shut-off

mechanism

35A, 35B cut off master 31A, the 31B that has bored a hole; Described master conveying roller is carried the master of having bored a hole 36A, 36B; Described

guide plate

37A, 37B will guide to printing cylinder 1A, 1B master 31A, the 31B that 36A, 36B carry by the master conveying roller.

Air roll

34A, 34B, its axial length form the length roughly the same with the width of

master

31A, 31B, and rotation is bearing between the not shown side plate of apparatus main body freely.Never illustrated stepper motor transmits driving force to

air roll

34A, 34B, along the clockwise direction among Fig. 1 it is rotated driving.

Thermal head

33A, 33B, its width forms than the axial length the earth of

air roll

34A, 34B, and disposes a plurality of heater elements on the surface thereon.

Thermal head

33A, 33B are connected on air roll 34A, the 34B its heater element surface pressure by the not shown force application mechanism application of force, and the action of each heater element is controlled respectively by not shown thermal head driver.

Shut-off

mechanism

35A, 35B are the known structure that is fixed on the not shown apparatus main body and has following blade 35Aa, 35Ba and upper knife edge 35Ab, 35Bb, and the width of wherein said blade 35Aa, 35Ba down forms than the width of

master

31A, 31B widely; Described upper knife edge 35Ab, 35Bb move and rotate freely at the width that descends blade 35Aa, 35Ba

upper edge master

31A, 31B and be provided with.

Rotation is bearing between the not shown side plate master conveying roller freely to 36A, 36B, have by not shown master transport driving drive rotation driven roller 36Aa, 36Ba, be crimped on driven voller 36Ab, 36Bb on driven roller 36Aa, the 36Ba, and come clamping and carry

master

31A, 31B by driven roller 36Aa, 36Ba and driven voller 36Ab, 36Bb.

Guide plate

37A, 37B are fixed between the not shown side plate.Master 31A, 31B are with the fit hole plate originals of the lit-par-lit structure that forms of thermoplastic resin film and porous matter supporting mass.As the porous supporting mass, use the mixture of Japan paper fiber, synthetic fibers or Japan paper and synthetic fibers.

Maintaining

body

5A, 5B have arm member 40A, arm member 40B,

axle

44A, 44B, have only these shown in Figure 1, also have brake, extension spring, o etc. in addition, wherein, described arm member 40A, arm member 40B respectively as can be approaching, away from cylinder outer peripheral face 1Aa, 1Ba twelve Earthly Branches bearing roller 2A, the 1st roller arm of 2B, the 2nd roller arm; Described

axle

44A, 44B swing supporting

arm parts

40A, 40B freely; Described brake can block respectively and is arranged on supporting arm parts 40A, the 40B with taking off; Described extension spring is as respectively to the force application mechanism of each brake application of force on the direction of ending with

arm member

40A, 40B card; Solenoid is as the brake drive source that brake is moved to the position that breaks away from

arm member

40A, 40B.

Arm member

40A, 40B have omitted a part of diagram, are roughly L word shape, and its bend is supported swingably by

axle

44A, 44B respectively.Axle 44A, 44B rotation is bearing on the not shown main body frame as housing freely.

Pressure roller

2A, 2B rotate respectively on the end that is bearing in

arm member

40A, 40B freely.

Pressure roller

2A, 2B have mandrel and as be configured as drum and be installed in mandrel around elastomeric nitrile butadiene rubber or chloroprene rubber.Only there are an end of pressure roller tensioner, wherein said pressure roller tensioner to have at another distolateral card of

arm member

40A, 40B to arm member 40A, the clockwise rotational characteristic of 40B effect and to the effect of printing cylinder 1A, 1B effect impression.The other end card of pressure roller tensioner ends on not shown main body frame one side.

On the other end of

arm member

40A, 40B, dispose not shown roller respectively.This roller and not shown cam contour side face crimping, wherein said cam make the outer peripheral face of

pressure roller

2A, 2B approaching with respect to each cylinder outer peripheral face 1Aa, 1Ba respectively, away from.This cam constitutes in the mode of synchronously rotating via the rotation of not shown connect mechanism and printing cylinder 1A and printing cylinder 1B.

According to these parts,

pressure roller

2A, 2B can from cylinder outer peripheral face 1Aa, 1Ba away from leave the position and be crimped between the pushing position on cylinder outer peripheral face 1Aa, the 1Ba and move.That is,

pressure roller

2A, 2B can be approaching, away from printing cylinder 1A, 1B.And, by these parts, when

pressure roller

2A, 2B pass through the 18A of Printing Department, 18B at the 1st clamper 42A, the 2nd clamper 42B, can leave from cylinder outer peripheral face 1Aa, 1Ba, the wherein said 18A of Printing Department, 18B are the opposed zones of

pressure roller

2A, 2B and cylinder outer peripheral face 1Aa, 1Ba.

Pressure roller

2A, 2B have following function, the paper 35 that is about to supply to from the leading edge portion of peristome 1a1, the 1b1 of cylinder outer peripheral face begin continuously by be pressed in cylinder outer peripheral face 1Aa, 1Ba is last and black image conversion is printed to paper 35.

Pressure roller

2A, 2B be with black image conversion to paper 35 time, and the forward a little position of leading edge that forms part with the 1a1 of ratio open portion, 1b1 on the direction of rotation of printing cylinder 1A, 1B begins mode with printing cylinder 1A, 1B butt near printing cylinder 1A, 1B.

Disengaging

pawl

7A, 7B and air-

flow generating mechanism

120A, 120B are configured in the left side of printing cylinder 1A, 1B in Fig. 1, be used to make paper 35 to separate respectively from cylinder outer peripheral face 1Aa, 1Ba and peel off.Disengaging

pawl

7A, 7B begin to dispose near the mode of cylinder outer peripheral face 1Aa, 1Ba with downstream one side of the 18A of Printing Department, the 18B on the direction of rotation of printing cylinder 1A, 1B respectively.Air-

flow generating mechanism

120A, 120B have the fans drive motor 66A, the 66B that become air-flow the source takes place, the 6A of ejection portion, the 6B that will spray to the 18A of Printing Department, 18B by the air-flow that fans drive

motor

66A, 66B produce.Disengaging

pawl

7A, 7B constitute, and form the configuration of a plurality of rakes ground on the width of paper 35, and the feasible air-flow of supplying with from the 6A of ejection portion, 6B can be vented near the Printing Department 18,19.

Separating the position OA, the OB that peel off by the paper 35 of disengaging

pawl

7A, 7B and air-

flow generating mechanism

120A, 120B gained from cylinder outer peripheral face 1Aa, 1Ba is included in the 18A of Printing Department, the 18B.In the present embodiment, separate peel off position OA, OB and by

pressure roller

2A, 2B with paper 35 by be pressed in cylinder outer peripheral face 1Aa, 1Ba is last and position consistency that black image conversion is printed to the paper 35.Wherein, the length between position OA, OB, in other words the length L 2 as the span between printing cylinder 1A and the printing cylinder 1B is 250mm.And the length of cylinder outer peripheral face 1Aa, 1Ba is about 3/4 of length L 2.

Paper feed 4 is configured in the right side of apparatus main body, in other words on the right side of printing cylinder 1A.Paper feed 4 has: paper supply tray 10, transfer paper roller 11, separate roller 12 and separating plate 14, the damping roller to 17, a plurality of sensor 15.Wherein, described paper supply tray 10 loads paper 35 and can lifting; The paper feed roller that the uppermost paper of the paper 35 of described accent paper roller 11 conducts from be loaded in paper supply tray 10 begins to send; Described separation roller 12 is as isolating one and the separate roller carried from the paper of sending by paper delivery roller 11 35, described separating plate 14 is as separating component; Described damping roller will be sent to the 18A of Printing Department by 1 paper 35 that separates roller 12 and separating plate 14 conveyings with official hour 17; Described a plurality of sensor 15 is as being configured in the paper supply tray 10, being used for the yardage testing agency of checkout gear in the length L 1 of the paper 35 of paper supply tray 10.Detection signal arm by sensor 15 gained is delivered to controlling organization shown in Figure 3 90.

When locing up, when when printing, examination seal, utilize controlling organization 90 to come rightly the driving of drive division described later to be controlled, thus, these paper delivery rollers 11, separation roller 12 are rotated action, and constitute, when the laggard luggage version of the package of

master

31A, 31B, supply with 1 paper 35, supply with paper 35 when printing or during the examination seal and finish up to the printing of setting number.

The damping roller has driven roller 17a and crimping driven voller 17b thereon to 17, and driven roller 17a is driven by not shown stepper motor revolution.Driven roller 17a and driven voller 17b can be rotated to support on the not shown side plate.The damping roller can be adjusted time of sending of paper 35 by the driving time of change stepper motor to 17.Sending paper 35 This moves from the damping roller to 17 is detected by not shown paper insertion sensor.

The paper transportation path that conveying device 21 constitutes between printing cylinder 1A and the printing cylinder 1B.Conveying device 21 has: driven roller 26 and driven voller 27, conveyer belt 28 and absorption fan 29, and wherein said driven roller 26 and driven voller 27 are respectively as the right conveying roller and the left conveying roller that can be rotated to support on the not shown housing side plate; Described conveyer belt 28 volumes are hung and are opened and are located on driven roller 26 and the driven voller 27, have a plurality of perforates; Described absorption fan 29 is configured in the inboard of conveyer belt 28.

Conveyer belt 28 by driven roller 26 in Fig. 1 in the counterclockwise direction the speed with 1100mm/s move, the speed of wherein said 1100mm/s is faster than the V1=1000mm/s as the linear velocity of cylinder outer peripheral face 1Aa, 1Ba.Effect has the attraction by the rotation generation of absorption fan 29 on the conveyor surface of conveyer belt 28.The rotating speed of absorption fan 29 waits by controlling organization 90 change electric currents, voltage or conductive waveform and controls.

Because conveying device 21 is such structure, so will pass through the 18A of Printing Department and separate the paper of peeling off 35 from cylinder outer peripheral face 1Aa, 1Ba to be adsorbed on the conveyer belt 28, and to the downstream of sheet transport direction Z one side, promptly to 18B of Printing Department or discharge tray 45 conveyings by disengaging

pawl

7A, 7B and air-flow generating mechanism 120A, 120B.Why the transporting velocity V2 with paper sets greatlyyer than the rotary speed V1 of cylinder outer peripheral face 1Aa, be in order to be about to be adsorbed onto on the conveyer belt 28 and working tension a little on the paper of peeling off from cylinder outer peripheral face 1Aa 35, owing to printing cylinder 1B that deflections cause and the dislocation between the paper 25 etc. take place for paper 25, and prevent the problem such as discrete in dislocation, the printing position of deterioration, the image of damping when preventing to peel off.

Under the length L 1 of paper 35 situation longer, can remain in the transporting velocity of paper 35 under the situation of rotary speed V1=1000mm/s of cylinder outer peripheral face 1Aa and arrive cylinder outer peripheral face 1Ba than the length L between position OA, the 0B 2.And under the situation of length L 1 than 2 weak points of the length L between position OA, the OB of paper 35, after printing cylinder 1A was left in the rear end of paper 35, the transporting velocity of paper 35 accelerated to the speed V2=1100mm/s of conveyer belt 28 from the rotary speed V1=1000mm/s of cylinder outer peripheral face 1Aa by conveying device 21.Again, the transporting velocity of paper 35, promptly by conveying device 21 paper 35 transporting velocity V2 can by the speed that changes conveyer belt 28 come with than fast a few percent of rotary speed V1 of printing cylinder 1A to a few tenths of high-speed driving.

Discharge tray 45 is configured in downstream one side of the 18B of Printing Department on the sheet transport direction Z.Discharge tray 45 can load many paper that print 35.Between 18B of Printing Department and discharge tray 45, dispose the not shown row's paper that passes through that detects the paper 35 that prints and check sensor, detect the paper 35 that prints and be discharged to This move in the discharge tray 45.

Although omitted diagram, on guidance panel, dispose: be used to make from the image that reads original copy to plate-making, for version, the plate-making key that a series of actions of locing up begins, be used to make the examination seal key of examination seal beginning, ten key, be used to use the printing key of printing action beginning of the setting number of ten key input, the monotype key that single printing mode of using 1 printing cylinder is set, the tandem mode key that the tandem printing mode of using 2 printing cylinders is set, the 1st cylinder options button that when at random selecting printing cylinder, uses and the 2nd cylinder options button, be used to make the position of image of position of image adjustment action beginning to adjust key, be used for showing printing number or printing residue number, the display part that constitutes by liquid crystal indicator etc. of the information of the printing cylinder of selecting and printing mould etc.

Original document reading apparatus is a known structure as described below: have the image sensor that is made of photo-electric conversion elements such as ADF, CCD, analog/digital conversion substrate etc., by image sensor the image that reads is carried out opto-electronic conversion, and convert picture intelligence to by the signal of telecommunication after this opto-electronic conversion is sent to the analog/digital conversion substrate.The digital image signal that generates by original document reading apparatus is sent to controlling organization 90.

As mentioned above, the length of cylinder outer peripheral face 1Aa, 1Ba be between position OA, OB length L 2 about 3/4.And, by conveying device 21 the transporting velocity of paper 35 become fast a few percent of rotary speed V1 than printing cylinder 1A to a few tenths of high-speed V2 according to the length L 1 of paper 35 sometimes, but can think that roughly the rotary speed V1 with printing cylinder 1A is identical.From such length, length velocity relation, the phase place of printing cylinder 1B than the phase place of printing cylinder 1A late roughly 1/3, promptly late roughly 120 °, make on paper 35, to occupy identical position by printing cylinder 1A printed image that carries out and the printed image that is undertaken by printing cylinder 1B.

Such phase relation of printing cylinder 1A and printing cylinder 1B, in other words position relation can be set by the device 80 that moves up and down shown in Figure 2, and the wherein said device 80 that moves up and down is as mobile adjusting device, is the reciprocating mechanism of phase adjustment mechanism.Move up and down device 80 and be the conveyor type device that printing cylinder 1A and printing cylinder 1B are linked up mutually.

Moving up and down device 80 has: main body motor 81, pulley 82A and pulley 82B, slider 83,

mobile pulley

84,84, link conveyer belt 85, idler roller 86, move up and down motor 87, but wherein said pulley 82A and pulley 82B are arranged on the 1st plate cylinder pulley on printing cylinder 1A, the 1B and the pulley of the 2nd plate cylinder rotatably as one respectively; Described slider 83 is configured between printing cylinder 1A, the 1B; Described

mobile pulley

84,84 rotations are bearing in the two ends of slider 83 freely; Described binding conveyer belt 85 is that volume hangs over the endless conveyor belt tooth conveyer belt on pulley 82A, the 82B; Described idler roller 86 pushes a plurality of fixed blocks that link conveyer belt 85 as the both sides that are positioned near the of

mobile pulley

84,84 and are configured in slider 83; The described motor 87 that moves up and down is shown among Fig. 3, makes slider 83 displacements.

Main body motor 81 is attached on the pulley 82A, and is driven by controlling organization 90.Idler roller 86 can be rotated to support on respectively on the not shown main body frame.Slider 83 extends along the above-below direction shown in arrow a, the b (below, note do " above-below direction a, b ") in Fig. 2 and is provided with, and a, b are bearing on the not shown main body frame movably along the vertical direction.Slider 83 comes optionally a, b displacement along the vertical direction by moving up and down motor 87.Printing cylinder 1a directly is attached on the main body motor 81, so carrying out by moving up and down image that motor 87 drives when adjusting, main body motor 81 becomes fixation side with regard to becoming load.

Be such structure owing to move up and down device 80, so printing cylinder 1B is rotated in a clockwise direction when arrow a direction moves by the driving that moves up and down motor 87 at driving slider 83, rotates in the counterclockwise direction when arrow b direction moves at slider.And, when driving main body motor 81, printing cylinder 1A, 1B linkedly along same direction, be that clockwise direction is driven in rotation.Driving by 90 pairs of main body motors 81 of controlling organization is controlled, and controls rotary speed and the direction of rotation of printing cylinder 1A and printing cylinder 1B thus.

As shown in Figure 3, controlling organization 90 has CPU91, ROM92, RAM93 etc., and main by by not shown signal bus the known microcomputer that these couple together being constituted.In CPU91, electrically be connected with respectively: main body motor 81, move up and down motor 87, plate-making for version device 3A, a 3B, the various keys that remove version device 88A, a 88B, paper feed 4, the sensor 15 that detects the size of paper 35, original document reading apparatus, guidance panel and display part etc. via interface 94.

About sensor 15, in controlling organization 90,, also judge having or not of paper 35 according to the size of judging paper 35 from the signal of sensor 15.For version device 3A, a 3B, in controlling organization 90, carry out the driving control of

thermal head

33A, 33B,

air roll

34A, 34B, shut-off

mechanism

35A, 35B, master conveying roller about plate-making to 36A, 36B.About paper feed 4, in controlling organization 90, carry out paper delivery roller 11, separate roller 12, the damping roller is to 17 driving control with about the control of the lifting of paper supply tray 10.

In addition, in controlling organization 90, also carry out the various controls of the driving control of main body motor 81, various controls that remove version device 88A, 88B, original document reading apparatus, move up and down the driving control of motor 87 etc. to output control, the aftermentioned of display part.These controls are based on being recorded in the various data among the ROM93 and using RAM92 one side to be undertaken by CPU91 rightly based on one side such as input of guidance panel.

Here, as stating, as shown in Figure 4, in the manner, the speed V2 of conveying device 21 is bigger than the rotary speed V1 of printing cylinder 1A, so the length L 1 of paper 35 than the length between printing cylinder 1A and the printing cylinder 1B, be under the short situation of length L 2 between OA, the OB, when leaving printing cylinder 1A in the rear end of paper 35, paper 35 quicken by conveying device 21 and become by conveying device 21 transporting velocity V2.On the other hand, under the length L 1 of paper 35 was the situation of length L more than 2 between position OA, the OB, the front end of paper 35 contacted with printing cylinder 1A before reaching printing cylinder 1B always, so its transporting velocity remains the rotary speed V1 of printing cylinder 1A.

So, when the length L 1 of paper 35 is lacked than the length L between position OA, the OB 2, compare for the situation of length L more than 2 between position OA, the OB with the length L 1 of paper 35, the front end of paper 35 earlier arrives printing cylinder 1B, so printing cylinder 1A is with respect to the printing position of paper 35, promptly the 1st printing position and printing cylinder 1B be with respect to the printing position of paper 35, promptly the 2nd printing position can misplace.Therefore, in the prior art, under the situation of length L 1 than 2 weak points of the length L between position OA, the OB of paper 35, for preventing dispersing of printing position etc., all need the operator to readjust the printing position while observing printed image, the problem of trouble so generation presswork becomes according to the length L 1 of paper 35 at every turn.

Therefore, in hole plate print device 100, use controlling organization 90 as the printing position guiding mechanism, when the length L 1 of paper 35 is lacked than the length L between position OA, the OB 2, the relative position that makes the 1st printing position and the 2nd printing position and the length L of paper 35 1 are compared the ormal weight X that staggers for the length L between position OA, the OB more than 2 the time, make the 1st printing position consistent with the 2nd printing position.

Therefore, in controlling organization 90, length L 1 by sensor 15 detected paper 35 and the length L 2 that is stored between position OA, the OB among the ROM93 are compared.And in controlling organization 90, ormal weight X passes through following formula

X=(L2-L1) ((V2-V1)/V1) calculate.

Wherein,

L1: the length of paper 35

L2: the length between printing cylinder 1A and the printing cylinder 1B, be the length between OA, the OB

V1: the rotary speed of printing cylinder 1A

V2: paper 35 leaves the transporting velocity by the paper 35 of conveying device 21 gained behind the printing cylinder 1A

In following formula, when ormal weight X represents the front end in-position OB of the paper 35 carried with speed V2, the distance of front position from position OB to the paper of carrying with speed V1 35.The front position of the paper 35 of this moment is positioned at a side of more leaning on the upstream on the sheet transport direction Z than position OB.

And, when ormal weight X also can be used as the front end in-position OB of the paper of carrying with speed V1 35, the distance of the front position from position OB to the paper of carrying with speed V2 35 tries to achieve.The front position of the paper 35 of this moment is positioned at a side of more leaning on the downstream on the sheet transport direction Z than position OB.Under this situation, ormal weight X can pass through following formula

X=(L2-L1) ((V2-V1)/V2) calculate.

In the manner, adopt the formula of front, and V1=1000mm/s, V2=1100mm/s, L2=250mm, so when L1=200mm, obtain X=5mm.In the formula of back, obtain X ≈ 4.4mm.Select to adopt which formula rightly, and be stored among the ROM93 in advance.And, for the number of significant digit of result of calculation, according to determining by the adjustment precision in the printing position of the method for adjustment gained in following printing position.

In the manner, based on the aforementioned calculation result, controlling organization 90 by on move down mobile device 80 and make the relative phase of printing cylinder 1A and the printing cylinder 1B amount corresponding that stagger with ormal weight X, thus, make the 1st printing position consistent with the 2nd printing position.Specifically, controlling organization 90 with the 1st printing position, be that the phase place of printing cylinder 1A is a benchmark, calculate to move up and down motor 87 drive what, slider 83 displacements what, just can make the phase place of printing cylinder 1B, promptly the amount corresponding with ormal weight X moved in the 2nd printing position, and drive with the amount of trying to achieve according to calculating and to move up and down motor 87, make the 1st printing position consistent with the 2nd printing position.

Because hole plate print device 100 is above such structure, so if with reference to Fig. 5 its action is described, then be: the operator places original document reading apparatus with original copy and in the fixed setting of the enterprising professional etiquette of operation panel, presses plate-making key (Fig. 5 (S1)); Utilize controlling organization 90 according to the size (Fig. 5 (S2)) of checking paper 35 from the detection signal of sensor 15 then; Make printing cylinder 1A, the 1B rotation (Fig. 5 (S3)) that remove version; By removing that a version device removes edition and when it finishes (Fig. 5 (S4)); Come to make a plate for version device 3A, 3B based on the original copy that reads, and supply version, finish (Fig. 5 (S5)) for version by plate-making.

Controlling organization 90 is from printing cylinder 1A, the rotation of 1B (Fig. 5 (S3)) begins to finish (Fig. 5 (S5)) for version during, with its simultaneously, length L 1 and position OA based on paper 35, the relation of the length L 2 between OB calculates make the relative phase of printing cylinder 1A and printing cylinder 1B become which kind of state, and the relative phase of printing cylinder 1A and printing cylinder 1B at that time for which kind of state is checked, exist under the situation of difference betwixt, calculate the phase place that make printing cylinder 1B what change, it is the amount of movement (Fig. 5 (S6)) of printing cylinder 1B.After finishing (Fig. 5 (S5)), drive based on this result of calculation and to move up and down device 80 (Fig. 5 (S7)) for version; Set the relative phase of printing cylinder 1A and printing cylinder 1B, make the 1st printing position consistent with the 2nd printing position (Fig. 5 (S8)).

Then, controlling organization 90 driving paper feeds 4 begin paper supply (Fig. 5 (S9)); Inserting sensor by paper detects from the damping roller 17 actions (Fig. 5 (S10)) of sending paper 35; Releasing from cylinder outer peripheral face 1Aa, 1Ba away from the maintenance of leaving

locational pressure roller

2A, 2B, and make the time of passing through of

pressure roller

2A, 2B and paper 35 move to the pushing position (Fig. 5 (S11)) that is crimped on cylinder outer peripheral face 1Aa, the 1Ba ordinatedly; On paper 35, print.Check that by row's paper sensor detects pass through (Fig. 5 (S12)) of the paper 35 that prints, (Fig. 5 (S13)) lockd up in end.

The operator prints number with the ten key input, and presses when printing key, and controlling organization 90 begins printing (Fig. 5 (S14)); Counting printing number, and repeat print up to the printing number that reaches input, when the printing of input number finished (Fig. 5 (S15)), printing stopped (Fig. 5 (S16)).

With reference to the above-mentioned action of Fig. 5 explanation is to make the 1st printing position consistent with the relative position in the 2nd printing position and make the relative phase of printing cylinder 1A and the printing cylinder 1B ormal weight X that staggers by controlling organization 90, but, also can make to the plate-making position of master 31A with to the relative position of the plate-making position of the master 31B ormal weight X that staggers by controlling organization 90 for to make the 1st printing position consistent with the relative position in the 2nd printing position.

This can make plate-making carry out for relatively staggering the actuation time of the thermal head 33B among the version device 3B for actuation time and the plate-making of the thermal head 33A among the version device 3A by utilizing controlling organization 90.With reference to Fig. 6 the action under this situation is described.Fig. 6 (S1)～(S4) is identical with Fig. 5 (S1)～(S4), the Therefore, omited explanation.

Controlling organization 90 begins during remove version and finish (Fig. 6 (S4)) in the rotation (Fig. 6 (S3)) from printing cylinder 1A, 1B, with its mutually concurrently, is benchmark based on the relation of the length L 1 of paper 35 and the length L 2 between position OA, OB and with plate-making for the plate-making position to master 31A of version device 3A, calculates the plate-making of sening as an envoy to and how relatively to stagger for the plate-making position to master 31B of version device 3B.Promptly, calculating send as an envoy to plate-making for the actuation time of the thermal head 33B among the version device 3B with respect to plate-making for how staggering the actuation time of the thermal head 33A among the version device 3A, just can make plate-making for version device 3B to the plate-making position of master 31B with respect to plate-making for the plate-making position of the version device 3A ormal weight X (Fig. 6 (S5)) that relatively staggers to master 31A.

After removing version end (Fig. 6 (S4)), controlling organization 90 supplies the energising of the thermal head 33B among the version device 3B to control based on this result of calculation subtend plate-making for thermal head 33A, plate-making among the version device 3A, makes a plate and supplies the plate-making to master 31B (Fig. 6 (S6)) of version device 3B for the plate-making to master 31A, the plate-making of version device 3A; And supply version, finish (Fig. 6 (S7)) for version.

Thereafter each step that stops (Fig. 6 (S15)) from paper supply (Fig. 6 (S8)) to printing is omitted explanation respectively with identical to each step that printing stops (Fig. 5 (S16)) from paper supply (Fig. 5 (S9)).

More than, as being used to implement mode of the present invention, to hole plate print device 100 and use its printing process to be illustrated, but the present invention not only can be applicable to hole plate print device, also can be applicable in the printing equipment of other types.The printing equipment of which kind of type no matter, all need to have a plurality of plate cylinders and the conveying mechanism that is configured in therebetween, but the quantity of plate cylinder is not limited to have 2 as hole plate print device 100, for example also can be 4 devices that carry out the printing of 4 looks are set.

In addition, the present invention is if having a plurality of plate cylinders, also can be applied to as shown in Figure 7, each face with paper P disposes plate cylinder A, B accordingly, can carry out in the printing equipment 99 of two-face printing respectively.In Fig. 7, mark C, D represent pressure roller, and mark E represents conveying mechanism.The structure of printing equipment 99 is identical with hole plate print device 100 except that the allocation position of plate cylinder, the Therefore, omited explanation.No matter in hole plate print device 100 or in printing equipment 99, all optional structure of pressure roller, the type that for example has impression cylinder also passable with replacing.Like this, the present invention can be applied in various types of printing equipments.

In addition, the present invention is to be prerequisite with rotary speed that the speed that is configured in the conveying mechanism between a plurality of plate cylinders is different from the 1st plate cylinder of its upstream one side, and the rotary speed big situation of the speed of conveying mechanism than the 1st plate cylinder of its upstream one side has been shown in aforesaid way, but if possible, also can be applied to the speed little situation of the speed of conveying mechanism than the plate cylinder of its upstream one side.

In aforesaid way, the printing position guiding mechanism is being benchmark, being come the structure to being adjusted with respect to the printing position of paper by the plate cylinder of one side of the downstream on the throughput direction of paper by the plate cylinder of one side of the upstream on the throughput direction of the paper printing position with respect to paper, but also can be being benchmark by the plate cylinder of one side of the downstream on the throughput direction of paper with respect to the printing position of paper.And, under situation with the plate cylinder more than 3, can be being benchmark with respect to the printing position of paper by the plate cylinder of upstream one side or downstream one side.And then, under situation with the plate cylinder more than 3, can also be being benchmark with respect to the printing position of paper by the plate cylinder except that upstream one side or downstream one side.

In aforesaid way, dispose the yardage testing agency of the length that detects paper, import yardage but also can constitute with guidance panel, and with it as yardage testing agency.And yardage testing agency can also be made of the two, in this case, can make in advance to be provided with fixingly, makes some preferentially, also can be switched setting by the operator.

In aforesaid way, respectively Fig. 5, Fig. 6 are illustrated as different modes, but also can make the structure that has both simultaneously, which the operator can select to adopt, and also can make and use both simultaneously.The flexible use of these structures can be carried out according to the characteristic of the adjustment such as adjustment precision of each structure, for example under the former is suitable for situation that coarse adjustment, the latter be suitable for finely tuning, can use both simultaneously, and big adjustment is undertaken by the former, and little adjustment is undertaken by the latter.

In aforesaid way, paper is illustrated from the butt position consistency of peeling off position and the 1st plate cylinder and pressure roller of the 1st plate cylinder, but peel off under the situation about position and described butt position staggering described, the viewpoint of application from invention, following way is comparatively suitable, is about to peel off the position and forms distance between the 1st plate cylinder and the 2nd plate cylinder as above-mentioned position OA and with it.

Claims

1. a printing equipment has: a plurality of plate cylinders that comprise the 1st plate cylinder and the 2nd plate cylinder at least; From the conveying mechanism of the 1st plate cylinder to the 2nd plate cylinder conveyance of sheets; And printing position guiding mechanism, wherein said printing position guiding mechanism is when the length of paper is shorter than the length between the 1st plate cylinder and the 2nd plate cylinder, making as the 1st plate cylinder is to compare the ormal weight that staggers more than the length between the 1st plate cylinder and the 2nd plate cylinder time with respect to the 1st printing position in the printing position of paper with as the 2nd plate cylinder with respect to the relative position in the 2nd printing position in the printing position of paper and the length of paper, makes the 1st printing position consistent with the 2nd printing position thus.

2. printing equipment as claimed in claim 1 is characterized in that, above-mentioned printing position guiding mechanism is obtained afore mentioned rules amount X by following formula.

X=(L2-L1) ((V2-V1)/V1) or

X＝(L2-L1)((V2-V1)/V2)

L1: the length of paper

L2: the length between the 1st plate cylinder and the 2nd plate cylinder

V1: the rotary speed of the 1st plate cylinder

V2: by the transporting velocity of the paper of conveying mechanism gained

3. printing equipment as claimed in claim 1 or 2 is characterized in that, above-mentioned printing position guiding mechanism makes the 1st printing position consistent with the 2nd printing position by the relative phase that makes the 1st plate cylinder and the 2nd plate cylinder afore mentioned rules amount that staggers.

4. printing equipment as claimed in claim 3, it is characterized in that, have the phase adjustment mechanism of adjusting the phase place between the 1st plate cylinder and the 2nd plate cylinder, above-mentioned printing position guiding mechanism makes the 1st printing position consistent with the 2nd printing position by driving above-mentioned phase adjustment mechanism.

5. as each the described printing equipment in the claim 1 to 4, it is characterized in that, above-mentioned printing position guiding mechanism makes the 1st printing position consistent with the 2nd printing position by making to the plate-making position that is wrapped in the 1st master on the 1st plate cylinder and the relative position between the plate-making position that is wrapped in the 2nd master on the 2nd plate cylinder afore mentioned rules amount that staggers.

6. printing equipment as claimed in claim 5, it is characterized in that, have: the 1st plate-making mechanism that possesses the 1st perforated member of the plate-making of carrying out the 1st master, and the 2nd plate-making mechanism that possesses the 2nd perforated member of the plate-making of carrying out the 2nd master, above-mentioned printing position guiding mechanism by making the 1st perforated member actuation time and the actuation time of the 2nd perforated member relatively stagger, make the 1st printing position consistent with the 2nd printing position.

7. as each the described printing equipment in the claim 1 to 6, it is characterized in that, above-mentioned printing position guiding mechanism to be to be benchmark by the plate cylinder of one side of the upstream on the sheet transport direction with respect to the printing position of paper, adjusts by the plate cylinder of one side of the downstream on the sheet transport direction printing position with respect to paper.

8. as each the described printing equipment in the claim 1 to 7, it is characterized in that having the yardage testing agency of the length that detects paper.

9. as each the described printing equipment in the claim 1 to 8, it is characterized in that above-mentioned yardage testing agency is arranged on to above-mentioned a plurality of plate cylinders and supplies with in the paper-feeding mechanism of paper.

10. printing process, use each the described printing equipment in the claim 1 to 9, when the length of paper is shorter than the length between the 1st plate cylinder and the 2nd plate cylinder, the relative position that makes the 1st printing position and the 2nd printing position and the length of paper are to compare the ormal weight that staggers more than the length between the 1st plate cylinder and the 2nd plate cylinder time, make the 1st printing position consistent with the 2nd printing position thus.