CN1970292A

CN1970292A - Printing press with plate locking mechanisms mounted on the frame

Info

Publication number: CN1970292A
Application number: CNA2006101646187A
Authority: CN
Inventors: 西尔万·莱皮奈
Original assignee: Goss Systemes Graphiques Nantes SAS
Current assignee: Gauss France; Goss International France SAS
Priority date: 2005-11-02
Filing date: 2006-11-02
Publication date: 2007-05-30
Anticipated expiration: 2026-11-02
Also published as: FR2892660B1; FR2892660A1; CN1970292B

Abstract

This printing press includes a frame and at least one plate cylinder which extends along a longitudinal axis and which is mounted so as to rotate on the frame in order to be able to rotate about the longitudinal axis thereof. The press includes at least one actuator and the plate cylinder includes at least one plate locking bar which extends within the plate cylinder. At least one portion of the bar can be moved under the action of the actuator between an extracted position for locking and a retracted position for unlocking a plate on the plate cylinder. The actuator is carried by the frame, such as using offset point printing machine.

Description

Has printing machine by the forme locking actuator of framework for carrying

Technical field

The present invention relates to one type printing machine, it comprises framework and at least one plate cylinder, described plate cylinder extends and like this installation to rotate on framework along longitudinal axis, rotating around its longitudinal axis, printing machine comprises at least one actuator, described plate cylinder comprises the forme securing rod that at least one extends in plate cylinder, under the effect of actuator, at least a portion of described bar can move between the retracted position that plate lock-ups is fixed on the extraction position on the plate cylinder and be used for the forme on the release plate cylinder being used for.

Background technology

Document US 2002/0148373 has been described a kind of printing machine of the above-mentioned type.

In this printing machine, as in some printing machines, forme locking actuator is a pneumatic cylinder, and it is arranged in the side of plate cylinder, and carrying thus.

Because relatively more difficult near cylinder, therefore the operation of the maintenance of such cylinder and maintenance is complicated especially.

Summary of the invention

An object of the present invention is more easily low-costly to safeguard that the printing machine of the above-mentioned type overcomes this problem by providing a kind of.

For this purpose, the present invention relates to a kind of printing machine of the above-mentioned type, it is characterized in that actuator is by framework for carrying.

According to specific embodiment, printing machine can comprise one or more following features, adopts separately or adopts according to the possible combination of technology arbitrarily:

The part of-securing rod can be rotationally moves between the unlocked position of the latched position of its extraction and indentation.

-cylinder comprises the arm of this part that is used for driving rotationally securing rod, and with regard to the rotation aspect, actuating arm is fixedly connected to this part, and cooperates with described actuator.

-actuating arm utilizes interfacing part to cooperate with actuator, and described interfacing part is by framework for carrying, and can be by actuator in the position of adjacency actuating arm with break away between the position of actuating arm and move; And

-described printing machine is an offset press.

Description of drawings

By below reading fully by way of example and the specification that provides of mode with reference to the accompanying drawings, will understand the present invention better, wherein:

Fig. 1 is the schematic partial side according to printing machine of the present invention,

Fig. 2 is the perspective schematic view of plate cylinder of the printing machine of Fig. 1,

Fig. 3 is the show in schematic partial sections along the line III-III among Fig. 2, illustrates the part of the securing rod of Fig. 2 intermediate roll.

Fig. 4 is the front schematic view of a part of securing rod of the plate cylinder of Fig. 2,

Fig. 5 is the diagrammatic fragmentary front view of the printing machine of Fig. 2,

Fig. 6 to Fig. 9 illustrates the consecutive steps of the method for positioning block on the plate cylinder of Fig. 2,

Figure 10 and 11 illustrates the consecutive steps of removing the method for forme from the plate cylinder of Fig. 2.

The specific embodiment

Fig. 1 schematically illustrates offset press 1.In graphic example, printing machine 1 comprises two mutual stacked dual print couple 3.Each print couple 3 comprises two pairs of plate cylinders 5 and blanket cylinder 7.

In the operating process of printing machine 1, the blanket cylinder 7 of same print couple 3 compresses each other mutually, and roll web 9 is vertical ground motion between two groups of blanket cylinders 7.

Plate cylinder 5 and blanket cylinder 7 are contained in the framework 11 rotationally, and described framework typically comprises two side 13,

cylinder

5 and 7 longitudinal extension between described two side.In this mode,

cylinder

5 and 7 can rotate around they longitudinal axis separately, carries out the difference in functionality of printing machine with this.

All plate cylinders 5 have similar structure, below will only describe one of them thus.

As shown in Figure 2, the outer surface 15 of cylinder 5 comprises four

zones

17,19,21,23 by the sign of the dotted line among Fig. 2.Each district or 17,19,21 and 23 is used for collecting

printing plates

17P, 19P, 21P, 23P respectively.

Forme

17P and 21P show in Fig. 3.

First area 17 and second area 19 are along the adjacent arrangement of longitudinal axis L of cylinder 5.The 21 and the 4th zone 23, the 3rd zone laterally is arranged in the next door of first area 17 and second area 19 respectively.In the embodiment of Fig. 2, cylinder 5 is used for receiving 4 formes, therefore relatively arranges with

zone

19 and 23 relative axis L diametric(al)s at opposite side with 21 in the zone 17 of a side.

For example,

zone

17,19,21 and 23 size is to receive

such forme

17P, 19P, 21P and 23P, will print the pair of pages of the tabloid format of the single page of the broadside format of arranged vertical for example or horizontal stacked arrangement on above-mentioned each forme.

Cylinder 5 is equipped with two securing rod 25A and 25B at cylinder 5 inboard longitudinal extensions.In Fig. 2, only can see the left-hand end of bar 25A.

The mode that two relative longitudinal axis L with 25B of securing rod 25A are relatively arranged with the base diameter direction is arranged, and has similar structure.Therefore below the structure of bar 25A will only be described.

Bar 25A is arranged among the shell 27A, and this shell 27A vertically is arranged in the cylinder 5 near its outer surface 15.Shell 27A passes through hole 29A in outer surface 15 upper sheds, and securing rod 25A comprises two along the adjacent part 31A that is arranged in order of longitudinal axis L.

Fig. 4 illustrates below the left part 31A that will describe, and right side part 31B has the vertical center plane symmetrical structure with respect to printing machine.Owing to be arranged on the roller bearing 33A of vertical end of part 31A, make the left part 31A that installs in the shell 27A of cylinder 5, to rotate.In this mode, left part 31A can rotate around its axis LT relative to cylinder 5.

Part 31A for example is provided with three traction fin 35A along the longitudinal axis L T of part 31A adjacent arrangement successively.

The free end 37A of fin 35A is folded to form hook.These hooks 37A is used for drawing the trailing edge 39 of corresponding forme, and in this mode, corresponding forme is forme 21P (Fig. 3).In traditional mode, described trailing edge 39 is inwardly folding, thereby is contained among the 29A of hole.In same mode, the leading edge 41 of each forme forme 17P especially as can see from Figure 3, inwardly folding to be bonded in the respective aperture, corresponding hole is the hole 29A among Fig. 3 in this example.

The pin 43A that stretches in the 29A of hole is contained in the opening that is arranged in the forme 17P leading edge 41, to guarantee correct location.Spring 44A is fixed among the groove 46A by unshowned pin.Spring 44A is pressed on the leading edge 41A, makes its left side wall (in Fig. 3) against hole 29A with this.

Left part 31A can move between the unlocked position of the latched position of extraction shown in Figure 3 and indentation rotationally around its longitudinal axis L T.In latched position, hook 37A is bonded on the back of the trailing edge 39 of forme 21P, and draws it circumferentially with the counter clockwise direction among Fig. 3.

Because forme 21P further keeps by its leading edge 41, strains and lock forme 21P thus, described leading edge is bonded among another hole 29B of cylinder 5.

In order to move into its unlocked position (not shown), part 31A rotates around its longitudinal axis L T with the clockwise direction among Fig. 3, unclamps the hook 37A of trailing edge 39 thus and allows to remove forme 21P.

The be permanently connected outside vertically end of left part 31A of shift arm 45A.Described arm 45A is contained in the groove 47A that is arranged in the cylinder 5.With regard to the rotation aspect, owing to arm 45A is fixedly connected on the left part 31A, so it can extract out between position and the retracted position mobile rotationally around the longitudinal axis L T of part 31A.

Stage clip 49A (Fig. 2) between cylinder 5 and arm 45A returns to it with arm 45A and extracts out in the position.

Two part 31A of bar 25A can utilize arm 45A separately to move independently of one another, to arrive the locking and unlocking position separately.

For moving of the part 31A that controls two securing rod 25A and 25B and 31B, printing machine 1 comprises two actuators 51 (Fig. 5), and each of described actuator is by corresponding fixed sidewall 13 carryings of framework 11.More properly, each actuator 51 is installed in and supports on 53, and described support is permanently connected with corresponding sidewall 13.

Actuator 51 for example is the air pressure jack.Bar wherein be installed in the lever 55 that supports on 53 pivotally and be connected.The bar of each jack 51 is connected on the end of corresponding lever 55, the other end bearing roller 57 of lever 55, and described roll-in is on

corresponding arm

45A and 45B.

Thus under the effect of corresponding actuator 51, each roller 57 can be pressed between the position of position on arm 45A or the arm 45B and it removing from

corresponding arm

45A and 45B at it and move.

At its depressing position, roller 57 moves radially the longitudinal axis L near cylinder 5.If

arm

45A or 45B and roller 57 are opposed, roller 57 is pressed onto on this arm, and described then arm is in retracted position.

In its off-position, roller 57 is further removed and is not interfered

arm

45A or 45B from longitudinal axis A.

As described in Figure 5, printing machine 1 comprises that also forme keeps bar 59, and described bar is longitudinal extension on the whole length on the surface 15 of cylinder 5.

This bar 59 is provided with roller 61, and described roller 61 is used for

forme

17P, 19P, 21P and 23P are compressed the outer surface 15 of cylinder 5, and is as described below.

In order to move between the position of leaving cylinder 5 and the close position of cylinder 5, bar 59 is hinged to and supports on 53.

Near the position, roller 61 is pressed on the surface 15 of cylinder 5 or is pressed on the arrangement forme thereon.Leaving the position, roller 61 leaves the forme of outer surface 15 and this surface bears.

Keep the move through actuator 63 of bar 59 between two position to carry out, for example described actuator is the air pressure jack.

Followingly see that opposite with actuator 51, the operation of these actuators 63 is synchronous, and described actuator 51 can be controlled part 31A and the 31B of same securing rod 25A or 25B independently.

Can be by for example electronic control unit control actuator 51 and 63 operation of control module, to carry out following described function.

Fig. 6 to 10 illustrates the different step that is used for the method on the plate cylinder 5 that forme is navigated to especially.In the embodiment that describes, described forme is forme 17P.

In Fig. 6, the roller 57 that relates to, also, left roller 57 is positioned at the off-position, and keeps bar 59 to be positioned at leaving the position.Securing rod 25A and 25B are positioned at latched position.Plate cylinder 5 is not in the position of special angle.

When the operator determined to navigate to new forme 17P on the cylinder 5, he brought into use control module to carry out corresponding operation.So automatically produce the rotating drive of plate cylinder 5, move to relative substantially up to lock arm 45A with left roller 57.So keep bar 59 automatically to arrive near the position, make roller 61 be pressed on the forme 21P (if it exists), perhaps be pressed on the outer surface 15 of cylinder 5.

So roller 57 automatically arrives the position that is pressed on the arm 45A, thereby arm is moved into retracted position (Fig. 7).So the left part 31A of bar 25A moves into unlocked position.The trailing edge 39 of forme 21P if it is positioned on the cylinder 5, then remains on the appropriate location by roller 61.

So the operator manually joins the leading edge 41 of forme 17P among the 29A of hole to, it will be fixed by pin 43A and spring 44A herein.So for example, the operator confirms that by pushing button leading edge 41 joins among the 29A of hole really.

Control module automatically index drum 5 rotates with the clockwise direction among Fig. 7, aims at hole 29A up to roller 61.So left roller 57 enters disengaging configuration and left part 31A (in Fig. 2) gets back to latched position, fix by left part 31A with the trailing edge 39 of this forme 21P.

As shown in Figure 8, so plate cylinder 5 rotation in the clockwise direction can continue about half way around, roller 61 moves and little by little forme 17P is pressed onto with relevant blanket cylinder 7 on the zone 17 of outer surface 15 of cylinder 5.

When near hole 29B, the rotation of cylinder 5 automatically stops, and left roller 57 automatically moves to the position that is pressed on the arm 45B of left side, and left part 31B moves into unlocked position.The rotation of cylinder 5 recovers automatically, and roller 61 little by little is inserted into (Fig. 9) among the 29B of hole with the trailing edge 39 of forme 17P.When roller 61 be provided with hole 29B on time, the rotation of cylinder 5 automatically stops, and left roller 57 automatically enters disengaging configuration.Extract the position out so left side arm 45B gets back to, pin the trailing edge 39 of forme 17P with this left part 31B.So lock forme exactly and keep bar 59 to return automatically to and leave the position.Finish the location of forme 17P.

Present 10 and 11 methods that use description to remove same forme 17P in conjunction with the accompanying drawings.

From the situation similar to accompanying drawing 6, for example, the operator begins to carry out under the control of control module and removes operation by pushing button.Automatic like this head roll rotationally 5 moves to relative with left roller 57 up to left side arm 45B.So roller 61 automatically arrives the position of pushing down forme 17P, left roller 57 automatically arrives the position of pushing down left side arm 45B then, causes the release of left part 31B thus.Because the elastic performance of forme 17P, its trailing edge 39 breaks away from hole 29B, but a side of the surplus portion of forme 17P remains on appropriate position by relevant blanket cylinder 7, and opposite side remains on appropriate position (Figure 10) by roller 61.

So left roller 57 automatically arrives disengaging configuration, left part 31B is locked again, so head roll 5 rotationally automatically in the counterclockwise direction makes the forme 17P progressive motion of cylinder 5, up to passing through hole 29A (Figure 11).

So left roller 47 automatically arrives the position of pushing down left side arm 45A, makes left part 31A move into unlocked position.So the trailing edge 39 of forme 21P if it is positioned on the cylinder 5, then remains on appropriate position by roller 61.So the operator can shift out the leading edge 41 of forme 17P from hole 29A.

In case the operator has confirmed the shifting out of leading edge 41 of forme 17P, then control module head roll 5 is slightly in the clockwise direction rotationally automatically aimed at hole 29A up to roller 61.So left roller 47 automatically moves towards its disengaging configuration, the left part 31A of securing rod 25A is locked once more.At last, keeping bar 59 automatically to leave the position towards it moves.So shifting out of forme 17P finished.

Because securing rod 25A and 25B are configured to can independently move each other in several portions 31A and 31B, be positioned at the left side forme the location or shift out and can under the situation that need not locate or shift out the forme that is installed on cylinder 5 right sides, carry out.

In same mode, in the location of the forme of a side setting of cylinder 5 or remove, for example, the forme 17P in the above-mentioned example can carry out under the situation that another forme 21P that is installed on the same side is not had any influence.

Therefore forme can be independent of other formes that are positioned on the cylinder 5 and changes, and this allows to carry out the change of format.In addition, it is to be noted and under the situation of not damaging forme, to carry out the dismounting of forme.

Need to prove that above-mentioned forme location and the method for removing are semi-automatic methods.

Because securing rod 25A and 25B produce several portions 31A and 31B, so the location of forme and remove also and can carry out simply in manual mode fully.Except the rotating driving of the locking and unlocking by operator's control section 31A and plate cylinder 5, also can carry out and aforesaidly be used for the location of forme 17P and remove.

Locating or removing in the operating process, the operator will support forme 17P and remain on tension, and the function of roller 61 is provided thus.

Under situation about damaging, carrying out so, the manual location or the method for removing is necessary.

Advantageously, as above-mentioned example in, can by roller 57 is pressed on arm 45A and the 45B keep securing rod 25A and/or 25B unlocked position in, make plate cylinder 5 revolutions cross small angle range.

Even it is pointed out that it is possible only changing some forme under situation about manually carrying out.In the example of forme 17P, the release of left part 31A and 31B and locking do not cause the right side part 31A of same securing rod and release and the locking of 31B.In this mode, when forme 17P located or removes, it was unnecessary that maintenance manually is arranged on the forme 19P and the 23P on cylinder right side.

So being used to change the manual methods of forme can carry out by the single operation person.

Further, it is pointed out that the actuator 51 that is used for mobile securing rod 25A and 25B, rather than self carry by plate cylinder 5 by framework 11 carryings.Therefore the maintenance of these actuators 51 is easy and economical, and has reduced the cost that relates to plate cylinder 5.

It is to be noted the feature that this is last, relate to the actuator 51 that uses by framework 11 rather than cylinder 5 carryings, can be independent of securing rod 25A in the several portions and the use of 25B.

Above-mentioned principle can relate to and having and above-mentioned those cylinder different-diameters, and has the plate cylinder 5 of the forme of varying number.

Therefore, can relate to the cylinder that on periphery, only receives a forme.

In this case, cylinder is provided with single securing rod 25.

Can in content of the present invention, use the structure except above-mentioned, for example, the printing machine of horizontal paper feeding, described printing machine uses the print couple of not taking charge of in dual print couple.

Claims

1, a kind of printing machine (1), it comprises framework (11) and at least one plate cylinder (5), described cylinder extends and is installed into and can go up rotation at framework (11) along longitudinal axis (L), rotating around its longitudinal axis (L), described printing machine comprises at least one actuator (51), and described plate cylinder (5) comprises the forme securing rod (25A that at least one extends in plate cylinder (5), 25B), described bar (25A, at least one part (31A 25B), 31B) can be under the effect of actuator, move between the retracted position that plate lock-ups is fixed on the extraction position on the plate cylinder (5) and be used for the forme on the release plate cylinder (5) being used for, it is characterized in that, described actuator (51) is carried by framework (11), wherein said cylinder (5) comprises and is used for driving rotationally securing rod (25A, part (31A 25B), arm (45A 31B), 45B), with regard to the rotation aspect, described actuating arm (45A, 45B) be fixedly connected to part (31A, 31B) upward and with actuator (51) cooperate, wherein said actuating arm (45A, 45B) cooperate with actuator (51) by roller (57), described roller is by framework (11) carrying, and can pass through actuator (51) against actuating arm (45A, position 45B) and disengaging actuating arm (45A, move between position 45B).

2, printing machine according to claim 1 is characterized in that, the described part (31A, 31B) of securing rod (25A, 25B) can move between the unlocked position of the latched position of its extraction and indentation rotationally.

3, printing machine according to claim 1 and 2, it is characterized in that, the outer surface (15) of described plate cylinder (5) comprises first area (17) that receives first forme (17P) and the second area (19) that receives second forme (19P) at least, first and second zones are along longitudinal axis (L) arrangement adjacent one another are of plate cylinder (5), and wherein securing rod (25A) comprises the first (31A) of extending in opposite directions with first area (17) at least, with the second portion (31A) that extends in opposite directions with second area (19), first and second parts (31A) can be respectively answered forme (17P being used for locking phase independently, extraction position 19P) and be used for the corresponding forme (17P of release, move between retracted position 19P).

4, printing machine according to claim 3, it is characterized in that, outer surface (15) also comprises the 3rd zone (21) and the 4th zone (23) that receive the 3rd forme (21P) and the 4th forme (23P) respectively at least, third and fourth zone is along longitudinal axis (L) arrangement adjacent one another are of plate cylinder (5), and the horizontal next door of (17) and second area (19) in the first area respectively, wherein said plate cylinder (5) comprises second securing rod (25B), described securing rod (25B) comprises the third part (31B) of extending in opposite directions with the 3rd zone (21) at least, with the 4th part (31B) of extending in opposite directions with the 4th zone (23B), described third and fourth part (31B) can be respectively answered forme (21P being used for locking phase independently, extraction position 23P) and be used for the corresponding forme (21P of release, move between retracted position 23P).

According to claim 3 or 4 described printing machines, it is characterized in that 5, each part (31A, 31B) of described securing rod (25A, 25B) is used to draw the trailing edge (39) of corresponding forme (17P, 19P, 21P, 23P).

6, printing machine according to claim 5, it is characterized in that, each part (31A, 31B) of securing rod (25A, 25B) comprises at least one hook (37), and described hook joint at the folding trailing edge (39) of corresponding forme (17P, 19P, 21P, 23P) afterwards.

7, according to the described printing machine of aforementioned any one claim, it is characterized in that this printing machine is an offset press.