EP3585616A1 - Verfahren und vorrichtung zum betrieb einer rotationssiebdruckmaschine - Google Patents
Verfahren und vorrichtung zum betrieb einer rotationssiebdruckmaschineInfo
- Publication number
- EP3585616A1 EP3585616A1 EP17777229.0A EP17777229A EP3585616A1 EP 3585616 A1 EP3585616 A1 EP 3585616A1 EP 17777229 A EP17777229 A EP 17777229A EP 3585616 A1 EP3585616 A1 EP 3585616A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- phase
- cylinder
- screen
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0804—Machines for printing sheets
- B41F15/0809—Machines for printing sheets with cylindrical or belt-like screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
- B41F11/02—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/26—Arrangement of cylinder bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/26—Arrangement of cylinder bearings
- B41F13/32—Bearings mounted on swinging supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/34—Cylinder lifting or adjusting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0831—Machines for printing webs
- B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
- B41F15/423—Driving means for reciprocating squeegees
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/44—Squeegees or doctors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/06—Tripping devices or stop-motions for starting or stopping operation of sheet or web feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/08—Tripping devices or stop-motions for starting or stopping operation of cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/10—Tripping devices or stop-motions for starting or stopping operation of damping or inking units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/12—Tripping devices or stop-motions for starting or stopping the machine as a whole
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/14—Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
Definitions
- the invention relates to a method and a device for operating a
- WO 2016/102187 A1 discloses a rotary screen printing machine with a first and a second screen cylinder, which forms two pressure points with an impression cylinder. Between the first and second pressure point is a on the lateral surface of the
- Screen printing cylinder arranged doctor blade is by a drive mechanically independent of the rotation of screen and impression cylinder from the inside against the screen printing form on and off this.
- the invention has for its object to provide an improved method and an improved apparatus for operating a screen printing machine.
- the achievable with the present invention consist in particular that the effort to clean the impression cylinder and / or the risk of
- Damage to the screen form can be significantly reduced.
- Anstellsequenz is collected on Siebdruckäußeren with ink screen printing cylinder accumulating ink removed before distributed by hiring the squeegee the built-up ink at undesirable locations of the sheet and / or impression cylinder .. It is advantageous if by lower operating speeds in the print-Ab the push through the ink is reduced.
- Fig. 1 shows an embodiment of a printing aggregate comprehensive
- Fig. 2 is a more detailed enlarged view of the embodiment of a
- Fig. 3 is a schematic cross-sectional view through a counter-pressure and / or
- Transport cylinder segment 4 shows a schematically illustrated development of a lateral surface segment of the counter-pressure and / or transport cylinder;
- Fig. 5 is a schematic diagram of a) the sequence of phases within an arrival
- Fig. 6 is a schematic diagram of the sequence of phases within an arrival
- Fig. 7 is a schematic diagram for the sequence of phases within an arrival
- Fig. 8 is a schematic diagram for the sequence of phases within an arrival
- FIG. 9 is a schematic representation of a drive device and a
- Control device comprising doctor device
- FIG. 10 shows a schematic illustration for the operation of a screen printing unit after a production interruption
- Fig. 1 1 is a schematic representation of the shutdown of a screen printing unit in case of fault production interruption.
- a printing machine z. B. a sheet-fed press or a web-fed printing press, comprises on the input side a feeder 01, by which the printing machine is supplied with a sheet or web-shaped substrate 02, at least one
- Printing unit 03 by which the printing substrate 02 one or more times is printed on one or more pages, and a product display 04, where printed products or intermediates stacked or continuously designed or wound up as a roll (see, for example, Fig. 1).
- the printing machine as a printing machine for security printing, for example, for printing web-like substrate 02, z. B. a printing substrate, or preferably for printing sheet-like substrate 02, z. B. substrate sheet 02, executed.
- the feeder 01 for the latter embodiment is z. B. formed as a sheet feeder 01, in which a stack of supplied and to be printed
- Substrate sheet 02 can be arranged.
- Printing machine is the substrate 02 in the range of at least one pressure point 06; 07 formed on at least one substrate side in a screen printing process, especially in rotary screen printing, printing.
- the printing substrate 02 to be printed by the screen printing method is preferably used as a printing material sheet 02 and / or as already printed on another printing process substrate 02 and / or as z.
- Plastic substrate polymer substrate
- hybrid substrate plastic substrate (polymer substrate) or designed as a hybrid substrate.
- the printing machine is designed as a sheet-fed printing press for security printing and z. B. designed to print from still unprinted or pre-printed substrate sheet 02 printed sheet, especially securities sheet such. B. sheets with banknotes, as products or emergezuver,de intermediates.
- the printing material 02 are in this case z. B. held as layers of a printing material stack in the trained as a sheet feeder 01 feeder 01, of which they are represented by a not shown in detail, z. B. suction cups comprehensive gripping device 08 individually recorded and isolated over a conveyor line 09, z. B. via a preferably designed as a belt system 09 conveyor system 09, and possibly a conditioning drum to be promoted to an entrance area in the printing unit 03.
- a preferably designed as a belt system 09 conveyor system 09 and possibly a conditioning drum to be promoted to an entrance area in the printing unit 03.
- Printing unit 03 for example, on a transfer drum 1 1 is the
- the web-shaped printing substrate 02 in the area of the printing unit 03 passes through a conveying path which comprises one or more rollers and / or cylinders wrapped around the web.
- the printing unit 03 associated conveying path is preferably designed as a gripper system in which the printing material 02 is conveyed by successive transfer between a plurality of successive drums and / or cylinders in the transport direction along the transport path through the printing unit 03.
- the end of z. B. designed as a gripper system conveying path of the printing material 02 is discharged to the third conveyor section 13.
- Betigstoffweg one or more conditioning devices 14; 16; 17, for example one or more
- the printing unit 03 comprises at least on one side of the conveying path at least one printing location 06, by which the printing material 02 can be printed or printed on one of its printing substrate sides.
- the pressure point 06 can by a nip 06 of two rotary body 18; 21, z. B. a nip 06 between a cylinder 18 of a first printing unit 19 and a cylinder 18 serving as an abutment cylinder 21, z. B. a counter-pressure and / or transport cylinder 21 may be formed.
- Downstream of this at least one printing point 06 can downstream in the printing material of the printing substrate 02, in particular in the pressure point 06 itself
- a first in contact with the contact printed by the at least one printing point 06 printed material side, the printing location 06 downstream in the printing material rotational body 22 may be arranged. This cooperating with the freshly printed substrate page
- Rotational body 22 may, for. B. as a guide and / or transport roller of the conveyor system, as a conditioning roller for cooling or heating of the printing substrate 02 or in particular to form a further pressure point 07 as a cylinder 22 of the first-mentioned printing unit 19 subsequent printing unit 23 executed.
- Such a second pressure point 07 may in this case be formed by a Nippstelle 07 between the cylinder 22 of the second printing unit 23 and an effective as an abutment cylinder, the z. B. by the first printing unit 19 as a counter-pressure and / or transport cylinder 21 serving cylinder 21 or a different therefrom, effective as counter-pressure and / or transport cylinder cylinder is formed.
- the printing press and / or the printing unit 03 upstream or downstream one or more more such on this same
- Printing machine comprises the at least one counter-pressure and / or transport cylinder 21 at its periphery at least one, preferably in succession more, z. B. three, holding devices 24, z. B. a one or a group of several grippers comprehensive gripping device 24, through which the input side, the leading end of a
- Substrate 02 can be taken up and downstream on the output side
- Conveyor line can be dispensed again.
- the gripper device 24 is in this case z. B. arranged in a provided in the otherwise cylindrical lateral surface 27 of the cylinder 21 pit 26, whose radially outwardly directed opening 28, z. B. pit opening 28, the cylinder jacket-shaped lateral surface 27 interrupts and disturbs (see, for example, Fig. 2a)).
- such holding devices 24 can be dispensed with (see, for example, FIG. Colloquially, the n-times large cylinder 21 n benefits, ie n each without interruption usable for printing peripheral sections U D.
- n-fold ie one or more times large execution includes the counter-pressure and / or transport cylinder 21 in the circumferential direction considered n, ie one or more usable as an abutment during printing peripheral portions U D , in particular Cylinder circumference sections U D and n, ie one or more the holding means 24 comprehensive, not usable as an abutment during printing peripheral sections U N , in particular cylinder circumference section U N with disturbed lateral surface 27. Die als
- the peripheral portion U N which comprises the opening 28 and which is not suitable for the pressure and / or provided has along the continued circular line an effective rolling length L N which corresponds to the arc length reaching over the opening.
- the usable for printing peripheral portion U N accordingly has a length L N , which simultaneously limits the possible print image length L B upwards.
- peripheral section U N which can not be used as a pressure abutment can in principle be guided solely through the opening 28 of the pit 26 receiving the holding device 24 or, if appropriate,
- downstream functional section for example a
- Circumferential section U D basically by the same between a leading end of the interruption, for example, the leading end of the opening 28, and the trailing end of the following in the circumferential direction the same or next opening 28 cylinder jacket gate.
- a leading end of the interruption for example, the leading end of the opening 28, and the trailing end of the following in the circumferential direction the same or next opening 28 cylinder jacket gate.
- the at least one printing unit 19 and in particular also the at least one further printing unit 23, which cooperates with the same printing material side, is designed as a printing unit 19 working after the screen printing; 23, briefly as Siebdruckwerk19; 23, and the printing unit 19; 23 associated cylinder 18; 22 as a form cylinder 18; 22, in particular as a so-called sieve cylinder 18; 22, in particular as a screen-printing cylinder 18; 22 formed.
- the screen cylinder 18; 22 rolls on the lateral surface of the counter-pressure and / or
- the screen cylinder 18; 22 includes in the region of its lateral surface as a printing forme 31; 32 a screen printing form 31 arranged concentrically with the real or imaginary cylinder axis; 32, in particular screen printing stencil 31; 32 ,. This is in the mounted state, for example, the front side releasably secured to not shown ring flanges.
- the screen printing stencil 31; 32 can basically as an endless cylinder jacket or sleeve-shaped screen printing stencil or as a finite, but in the assembled state to a closed to form a slight impact in the circumference screen printing stencil 31; 32 executed.
- AN Anstelllage
- the squeegee 34 thus employed accumulates a bead of printing ink which it rolls in front of it and pushes through the permeable areas of the screen printing stencil 31, 32 to the outside.
- Dyeing aid 29, z. B. a flap 29 designed as a cover 29, be provided, through which the opening 28 is at least in the leading portion of the opening 28 temporarily covered.
- the cover element 29 may, for example, overlap slightly with the undisturbed cylinder jacket peripheral section and in this case reduces the length L D of the maximum usable peripheral section U D for printing. This geometric shortening is caused by the premature hiring z. B. more than offset. Due to the premature setting can - in relation to the unrolling during operation - upstream pressure range beginning ideally immediately, but possibly additionally connect over a slight safety distance to the cover 29.
- Safety distance in the connection to the cover 29 conditional extension of not usable for printing peripheral portion U N beyond the leading edge opening and / or the distance of the earliest possible Druck Schemesterrorisms to trailing side opening edge, for example, between 10 mm and 50 mm, preferably at most 30 mm.
- the maximum usable for the pressure length L D is limited by the machine and / or security reasons earliest possible pressure range beginning and a machine and / or security due trailing side latest possible pressure range end.
- the latest possible pressure range end in principle with the leading end of the following opening 28, z. B. the leading opening edge of the following opening 28, coincide or - z. B. for safety reasons and / or
- the maximum usable for the pressure length L D for example, by the length of the undisturbed circumference on the abutment, z. B. the counter-pressure and / or transport cylinder 21, or by other involved in the printing and / or transport machine elements or by the considered in the transport and / or circumferential direction, the maximum usable for printing length of the printing unit 19; 23 provided printing plates 31; 32, hereinafter also referred to briefly as the print length, be limited.
- a further drying device 36 z. B. a dryer 36, in particular intermediate dryer 36 is provided, which is preferably designed as a radiation dryer 36.
- Upstream and / or in particular downstream limiting shading 37 may be provided, which is given for example by a wall 37 of the dryer 36 receiving and to the side of the printing material 02 open towards housing.
- this comprises a single or multi-part radiation source 38 for electromagnetic radiation, for. B. for light, in particular for UV light, ie of light with at least one predominantly lying in the UV spectral portion of emitted radiation power.
- the dryer 36 may be designed in particular as a UV LED dryer.
- the squeegee device 33 see for example schematically Fig. 2 and Fig.
- 9) comprises an on-and-Abstellterrorism enabling storage device of the doctor blade 34 and a drive means 39, 41, 48, through which the squeegee 34 with its doctor edge - at least what the length and / or position of an approach and shutdown sequence related to the cycle length L z with at least one phase P A N concerning an engagement position "AN" and at least one phase P A N relating to a parking position "AB";
- PAB short sequence, relates to cyclically correlated operation, in particular synchronized or clocked, to the rotational position of the counterpressure and / or transport cylinder 21 and / or cyclically correlated, in particular clocked, to the position of the printing material 02 to be printed, as viewed in the transport direction Screen printing stencil 31; 32 of the screen printing cylinder 18; 22 is turned on and off or on and off.
- the correlation of the squeegee movement generally relates to a medium or direct correlation to the machine and / or
- Printing stock phasing for example, to the position and / or the movement of a machine phase, in particular to a pressure point 06; 07 relevant phase position, and / or to a situation and / or an advance of the printing substrate 02 in the
- This machine phase can by the medium or directly derived angular position of the affected pressure point 06; 07 forming cylinder 18; 21; 22 be.
- the size which concerns the progress of the printing substrate 02 can be conveyed by an angular position signal of a substrate 02 transporting the register
- Machine element or a passage signal to be provided on the transport sensor are Machine element or a passage signal to be provided on the transport sensor.
- the cycle length L z is preferably given by the repetition length between two successive printing sections, ie the shortest possible distance between the leading ends of two successive printed image lengths. Depending on the physical variable to be considered, it can be spatially limited to a path length between two locations y or an angle ⁇ or temporally to the duration between two
- Transport Bersprofils these sizes are interconvertible and For example, refer to a relative position to the machine phase.
- the cycle length L z corresponds to the sum of the length L44 of a maximum usable peripheral portion U D along the transport path and a length L N of a circumferential portion U N lying between two such peripheral portions U D that can not be used for the pressure.
- the latter can be caused inter alia by interruptions in the case of sheet printing inter alia by the means for the sheet transport and for the web printing, which are caused by collisions or even gaps between the ends of clamped printing plates.
- Transport cylinder 21 corresponds to the cycle length L z, for example, the total of the length L44 of a usable for the pressure of the peripheral portion U D and the length L N of a not usable for the pressure peripheral portion U N and / or the n-th part of the circumference of the n- full-sized or n saddle comprehensive counter-pressure and / or transport cylinder 21st
- Such a cycle length L z or the on-off sequence assigned to this comprises, for example, B. at least one phase P A B with shut off squeegee 34 and at least one phase PAN with staff squeegee 34.
- the concept of the phase P A N; PAN again affect a spatial or temporal size.
- Such a cycle can be a sequence with only a single phase P A B with the squeegee off and a phase P A N with squeegee 34 engaged or, in a further development, a sequence with several phases interrupted by a respective phase P A B with the squeegee off P AN with employee squeegee 34 include.
- phase P AN employed in actual working position blade 34, in which this example, not only directly up to, but with a slight deflection of z. B. at least 0.5 mm, ie a determined by the degree of beyond the first BerstoffCount setting negative distance a AN of a AN ⁇ -0.5mm, against the screen printing stencil 31; 32 is employed, and the phase P AB with effectively off doctor blade 34, in which the blade edge a slight distance a AB of z. B. a AB ⁇ 0.2 mm, in particular 1, 2 mm> a AB ⁇ 0.4 mm, to screen printing stencil 31; 32 occupies a phase P on the Anstellens or a phase P be located from the Abstellens.
- the sum of the length of a phase P from stopping and the length of a phase P at the Anstellens corresponds, for example, at most the length L N of the non-usable for printing Peripheral section U N , which here, for example, at least by the width seen in the circumferential direction of the opening 28 and the trailing pit edge upstream distance a s and possibly given by the length of the above-mentioned overlap of a possibly provided cover 29.
- the doctor device 33 comprises (see, for example, FIG. 9) a control device 39, by means of which the doctor blade 34 in FIG. Correlation to the machine phase of the printing press and / or the progress of the printing material 02 is switched on and off and on and off.
- the control device 39 is the arrival and
- the drive means 41 is controlled in the manner by the control device 39, that the drive means during the phase P A N with staff squeegee 34 or for the corresponding duration T AN in an operating state BZ A N effecting the setting position "AN” and operating state BZ A B effecting the setting position "AB" during the phase PAB with deactivated doctor blade 34 or for the corresponding duration (see eg schematically in FIG. ,
- control device 39 can be formed by a coherent or distributed control circuit 39 or by a coherent or distributed data processing means 39 connected to one another by signal technology, wherein it comprises switching and / or data processing means for carrying out a correlation mentioned above.
- the control device 39 may be wholly or partially integrated into a machine control system connected with control and / or drive means of the printing machine in a different manner or may be provided entirely or partially specifically for the control of the squeegee 34.
- Machine phase and / or to the printing material progress takes place z. B. by transmission of the machine phase and / or the Beyakstofffort Kunststoff representing signals S K via a signal connection 35 between the controller 39 and one
- this can be an already provided in the machine, a registerroismilandem component, eg. B. the investment drum, associated sensor 42 may be.
- a registerroismilandem component eg. B. the investment drum, associated sensor 42 may be.
- the master control 42 serving as the master control 42 can be controlled by such electronic master shaft 42 may be formed, the more or more
- This master axis 42 can follow as a real electronic master axis 42 of the rotational movement of a real angle signal or generated as virtual master axis by data processing means 39 and be predetermined for all coupled follower drives.
- the signal connection 35 is then formed by the coupling to the electronic master axis 42 and executed, for example, as a bus or network system.
- the squeegee device 33 - in particular the said squeegee 34 in a correlation to the machine phase of the printing press and / or to the progress of the printing material 02 on and off control means 39 - comprises control means 43, by which a length and / or position of at least one Anstelllage " AN "relevant phase P A N can be varied within a repeating cycle for switching on and off depending on the printing material format and / or the printed image information or information l (F); l (L B ); l (M)
- the information l (F), l (L B ), l (M) relating to the printing material format, in particular its length, and / or the printed image may be information l (F).
- two or more discrete values or ranges of values for the relevant information 1 (F) can be used for the format- or image-dependent control of the phase length and / or length.
- l (L44); l ( M ) a corresponding number of discrete phase lengths and / or positions for the phase P A N with staff squeegee 34 and / or a corresponding number of -.
- B. at least partially each other spaced apart phase positions for the end of the phase P A N with squeegee 34 on - for example, in or by the control means 43 - be kept or provided.
- control means 43 as a function of one of a continuous range of values of the information in question l (F); l (L B ); I (M) value a value for the phase length and / or -läge the phase P A N with squeegee 34 or for the phase position of the end of the phase PAN with squeegee 34 employed from a continuous - and z. B. limited up and down - value range is provided or provided.
- a sequence of equidistant discrete steps should be understood as "continuous", which is conditioned, for example, by restriction or rounding down to the smallest steps to be considered and / or hand-handled in the variable to be considered.
- control device 39 a processing of the above-mentioned correlation signals S K to the arrival and Abstellterrorism the squeegee 34 controlling signals S R taking into account a specific phase length and / or -läge for the Anstelllage "ON" phase P A N or phases P A N within one cycle or cycle length L z .
- control device 39 for the correlated, in particular synchronized drive comprising control means 43 for providing the format and / or
- Print image dependent phase length and / or position can in turn by one or more contiguous or distributed circuit and / or Data processing means may be formed, wherein there are circuit and / or data processing means for determining a Anstelllage "AN" concerning
- control means 43 encompassed by the control device 39 can - in accordance with the control device 39 itself - be wholly or partially connected in a control-technically connected manner with another actuating and / or drive means of the printing press, for. B. a planning and / or control plane 47 machine control to be integrated integrated or decentralized and spatially close to the drive means 41 to be controlled.
- the length and / or position of the at least one phase P A N with squeegee 34 or the corresponding or temporal arrangement or a movement profile taking into account this length or duration is determined on the basis of an assignment rule contained in the control means 43 as a function of the information 1 to be used.
- the ZuOrdstedsvorschrift can be kept tabular or as a functional context in one of the control means 43 included computing and / or storage means 52. This should also be understood as a complex rule by which, depending on the
- the information l (F) determining the phase length and / or the phase end or the phase position; l (L B ); l (M) can the control means 43 z. B. over a
- Signal connection 45 are provided by the planning and / or management level 47 forth. This can for example - especially in the case of the
- the information I (F); I (L B ) or to this information I (F); l (L B ) to be processed data from already existing electronically in the planning and / or control level 47 or a pre-press data for product and / or production planning are or be.
- an information 1 (L B ) relating to the printing length or the printing pattern in particular; l (M) preferable variant can be the respective
- Print image extract existing data are obtained or be.
- phase length or "phase position” can here, if not distinguishable, as a short form for the above “length” or “position” both the size or the position of the phase in question spatially (position, Angle) as well as - via the velocity profile - whose temporal correspondence as a duration or relative position within the synchronized cycle length L z be taken or be.
- the times for the respective phase change and thus the phase length and the phase position are z. B. determined relative to the machine phase position and / or the printing material phase position.
- phase position for the beginning of the respective phase P A N with employed squeegee 34 can each have a same and z. B. fixed, but may be changed if necessary. This can, for example in the manner outlined above, lie before the beginning of the peripheral section U N which can be used for printing.
- the phase length of the phase P AN with employee squeegee 34 or at least one end of the phase P AN with staff squeegee 34 by the controller 39 as a function of the respective print image length L B or an information l (L B ) representing this length.
- L B the print image length
- the intermediate pressure region 44 may have continuous or discontinuous pressure regions 44. It is done for operating situations with differing print image length L B depending on the respective
- Print image length L B or information l (L B ) representing this length activates and deactivates the doctor blade 34 in a respective cycle Z1; Z2, in which the different print image lengths L B from each other different phase lengths for the respective phase P AN with staff squeegee 34 or divergent Phases are assigned to the end of the respective phase P A N with squeegee 34 engaged.
- the phase position for the beginning of the respective phase P A N with employed squeegee 34 can each have a same and z. B. fixed, but may be changed if necessary. This can, for example in the manner outlined above, lie before the beginning of the peripheral section U N which can be used for printing.
- Phase relationship for the beginning of the respective phase P A N with employed squeegee 34 can in this case be, as above, respectively a same or a dependent on the print image start phase.
- a start and an end of the respective phases P AN with employed squeegee 34 are determined by the control device 39 as a function of information I (M), which represent the phase position, viewed in the transport direction, of printed strips 46 of a printing area 44 interrupted by non-printable strips.
- I (M) represent the phase position, viewed in the transport direction, of printed strips 46 of a printing area 44 interrupted by non-printable strips.
- Print image in particular by evaluation of z. B. in prepress in data form present target print image are obtained or are. It can to
- control means 43 within the preferably fixed cycle length L z a ratio between the related to the length of the swept inner circumference on the screen printing phase length of the Anstelllage "AN" phase concerned P A N and the Abstelllage "AB” phase P A B variable
- Execution enabling storage and drive device of the doctor blade 34 can basically be carried out arbitrarily, provided they preferably at least one appropriately on and off squeegee 34 and one of the rotary drive of the screen printing cylinder 18; 22 and / or the counter-pressure and / or transport cylinder 21 mechanically independently operable and / or operated drive 41, 48 includes. This is for example - in particular without mechanical coupling to the drive of the screen printing cylinder 18; 22 or the counter-pressure and / or
- Transport cylinder 21 - optionally in a the Anstelllage "AN” of the blade 34 causing operating state BZ A N and in the Abstelllage "AB” of the squeegee 34 causing operating state BZ A B can be brought (see, eg, Fig. 5b)) with 5a) ).
- Screen-printing cylinder 18; 22 and / or the counter-pressure and / or transport cylinder 21 formed drive 41, 48 may in principle be arbitrarily designed to allow an on and off the doctor blade 34 in the manner mentioned.
- the type of movement of the doctor blade 34 and / or the formation of the drive in principle arbitrary be executed.
- the following examples reflect particularly advantageous embodiments, but should not necessarily limit the functionally underlying solution.
- Such a drive 41, 48 comprises at least one controllable drive means 41.
- This can, for example, as an actuatable by application of a pressurized fluid drive means 41, such.
- a pressurizable fluid pressure cylinder-piston system such as a hydraulic or pneumatic cylinder drive, or - as preferred here - as a - preferably angular position adjustable - motor 41, such.
- an electric motor 41 for example, as a linear motor or as a rotary electric motor 41 may be formed.
- the drive means 41 is the output side medium or directly over a
- the active compound can act directly on the doctor blade 34 without any gear or transmission 48.
- Such a transmission can in a first embodiment z. B. by a linear movement of a linearly acting drive means 41, z. B. one with a
- Pressure fluid operable drive means 41 in a on / Abstellterrorism the doctor blade 34 transmitting gear 48, for example comprising a plunger and / or a one or two-armed lever, be formed.
- the coupling via a rotational movement of a rotationally acting drive means 41, z. B. an electric motor 41, carried out in an on / Abstellterrorism the doctor blade 34 changing gear 48 and be realized.
- the drive can be designed as a linear drive, and the gear 48 as a rotary motion of a rotor - preferably angular position controlled trained - electric motor 41 in a linear movement of the blade 34 carrying carrier transforming gear 48, z. B. a spindle gear, be executed.
- a pressure-on "DN" in the nip point 06, 07 can in principle also be effected by moving the squeegee 34 into its setting position "ON", the round-shaped screen, which is elastic and / or deformable within certain limits, as a screen printing form 31; 32 from a space spaced from the lateral surface 27 in contact with the contact
- Counter pressure cylinder 21 is spent.
- Counter pressure cylinder 21 is spent.
- Drive means 40 such as a pneumatic cylinder 49th provided. This can, for example, as an actuatable by pressurized fluid drive means 41, z. As a hydraulic or pneumatic cylinder, be designed as an electric motor or in any other way.
- control means 51 are provided, through which the Turning on and off the screen cylinder 18; 22 is effected via appropriate control of the drive means 41, for example, by the control means 51 forth the drive means 49 a
- An advantage may be an embodiment, wherein the entire actuating mechanism for the doctor blade 34 when setting the screen cylinder 18; 22 is moved with this. This can be avoided, for example, that the
- Squeegee mode switching signal to be forwarded. This is for example a permanent or cyclic setting as described above can be activated and deactivated.
- the on and off of the doctor blade 34 and the pressure on and off printing of the screen printing cylinder 18; 22 can be effected independently, is a particularly preferable mode of operation of the printing unit 19; 23 when starting or restarting the machine or the printing unit 19; 23 feasible.
- a contamination of the surface of the impression cylinder 21 by from the screen cylinder 31; 32 derived printing ink largely prevented, or at least significantly reduced.
- the Siebau passivates infiltrating ink which subsequently lead to color deposits on the outer surface 27 of the impression cylinder 21 and there Damage or at least can lead to excessive cleaning.
- the undesirable manner on the outside accumulating ink can, for. B. by appropriate construction over several revolutions, for example, at more than three revolutions, achieve a greater thickness compared to the gap formed in pressure-From DB, so that they can at least partially reach the lateral surface 27 of the impression cylinder 21.
- a paint roller are formed, in the worst case not from Substrate 02 can be added and transported to the end of the sheet.
- the residual color on the surface of the impression cylinder 21 is distributed.
- a drying device 36 in particular an intermediate dryer 36, directed to the lateral surface 27 and, for example, is not deactivated for the starting process.
- third phase is finally carried out for subsequent printing material 02 an operation with permanently or preferably in the manner outlined above cyclically per printing material 02 at least once employed squeegee 34 takes place.
- the permanently employed squeegee 34 should be a commercial squeegee operation.
- the Anstellsequenz of screen cylinder 18; 22 and blade 34 thus takes place in such a way that first one or more turns only the sieve is turned on. During this time, the ink on the outside of the screen printing mold 31; 32 transferred to the substrate 02. When placing the doctor blade 34 is then only so much ink outside of the screen printing plate 31; 32, that the substrate 02 can also absorb the amount of color and no more paint roller in the nip 06; 07 can build.
- the left in the second phase when left squeegee 34 through the pressure point 06; 07 conveyed printing material 02 are downstream of the screen printing unit 19; 23 as waste paper from the sheet preferably separated separieret, in particular discharged and / or collected separately.
- a first variant for the initial position in the first phase is the screen cylinder 18; 22 and / or the impression cylinder 21 at a standstill, and is in a lying between the first and second phase start-up on a
- Operating speed is significant compared to the production target speed, i. H. by at least one third of the production target speed, lower. It corresponds, for example, at most one sheet conveying rate through the printing point 06; 07 of up to 4,000 sheets / hour, in particular from 2,000 to 4,000 sheets / hour.
- the first, second and third phase comprehensive operation takes place in the context of recording or resuming production, preferably between the first and second phase, a sheet feed to the press by the sheet feeder 01 synchronized to the angular position and / or speed of the Counter-pressure cylinder 21 is added, wherein the second phase with the employment of the screen cylinder 18; 22 to one, z. B. the first of the sheet feeder 01 forth as part of a recording or resumption in the pressure point 06; 07 funded
- Substrate sheet 02 begins.
- the number of machine revolutions, in particular at least the Siebzylinderumwindungen before the first printing material 02 is printed is reduced to a minimum when starting the machine for startup or restarting.
- the machine speed is preferably only after the start of printing, so after hiring the screen cylinder 18; 22 and the squeegee 34, increased to production speed. As a result, less ink is pressed from the inside through the screen printing plate 31, 32 to the outside in a shorter time with the least possible centrifugal force.
- the resumption of production is, for example, an error-related one
- Substrate sheet 02 in the product display 04 can stop the machine completely.
- the squeegee 34 is switched off before it is switched off
- a planned or regulated machine stop for example, at
- Machine speed - especially during the last printing material 02 - preferably reduced as far as possible when employed squeegee 34.
- the sheet transport from the printing nip to the delivery takes place at a reduced operating speed.
- a permanent hiring or mechanically coupled to the impression cylinder angular position cyclic on and off is preferably the above for switching on and off the squeegee 34 by a mechanically independent of the rotary drive drive means 41 for the squeegee drive apply. Also, the procedure is driven both on a drive of the printing press and / or the screen printing unit with a drive coupling together
- Cylinders 18; 21; 22, as well as to an embodiment with individually or in groups driven cylinders 18; 21; 22 apply.
- Cylinders 18; 21; 22 independent of
- Substrate sheet 02 at least once from the inside against the screen printing plate 31; 32 hires.
- the device and / or the control means 51 set up accordingly, ie comprises a control routine, which is implemented, for example, as a software program in data processing means comprised by the control means 51.
- Dyeing aid cover element, flap printing form, screen printing form, screen printing stencil
- Printing form screen printing form, screen printing stencil
- Drying device dryer, intermediate dryer, radiation dryer shading, wall
- Control device control circuit, data processing means drive means, motor, electric motor
- Master axis encoder master, master axis, sensors, drive control Control means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
- Printing Methods (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017202941.2A DE102017202941A1 (de) | 2017-02-23 | 2017-02-23 | Verfahren und Vorrichtung zum Betrieb einer Siebdruckmaschine |
| PCT/EP2017/074032 WO2018153509A1 (de) | 2017-02-23 | 2017-09-22 | Verfahren und vorrichtung zum betrieb einer rotationssiebdruckmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3585616A1 true EP3585616A1 (de) | 2020-01-01 |
| EP3585616B1 EP3585616B1 (de) | 2020-12-16 |
Family
ID=59982364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17777229.0A Active EP3585616B1 (de) | 2017-02-23 | 2017-09-22 | Verfahren und vorrichtung zum betrieb einer rotationssiebdruckmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10696041B2 (de) |
| EP (1) | EP3585616B1 (de) |
| JP (1) | JP6720419B2 (de) |
| CN (1) | CN110325366A (de) |
| DE (1) | DE102017202941A1 (de) |
| WO (1) | WO2018153509A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020101680A1 (de) | 2020-01-24 | 2021-07-29 | Koenig & Bauer Ag | Verfahren zum Betrieb eines Siebdruckwerkes in einer Druckmaschine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1582349A1 (de) * | 2004-03-30 | 2005-10-05 | Kba-Giori S.A. | Druckverfahren und -maschine |
| ITMO20060127A1 (it) | 2006-04-19 | 2007-10-20 | Pont Massimiliano Dal | Apparato di stampa |
| EP2698254B1 (de) * | 2012-08-17 | 2016-09-21 | Komori Corporation | Siebdruckvorrichtung und Kombinationsdruckmaschine mit der Siebdruckvorrichtung |
| JP6541209B2 (ja) | 2014-10-23 | 2019-07-10 | 株式会社小森コーポレーション | ロータリースクリーン印刷機 |
| DE102014226869B4 (de) | 2014-12-22 | 2022-03-17 | Koenig & Bauer Ag | Rakeleinrichtung für eine Siebdruckmaschine und Siebdruckmaschine |
| DE102015208916B4 (de) * | 2015-05-13 | 2022-03-24 | Koenig & Bauer Ag | Druckwerk |
| DE102015208919A1 (de) | 2015-05-13 | 2016-11-17 | Koenig & Bauer Ag | Rakeleinrichtung, Druckwerk sowie Verfahren zum Betreiben einer Rakeleinrichtung |
-
2017
- 2017-02-23 DE DE102017202941.2A patent/DE102017202941A1/de not_active Withdrawn
- 2017-09-22 EP EP17777229.0A patent/EP3585616B1/de active Active
- 2017-09-22 JP JP2019545976A patent/JP6720419B2/ja active Active
- 2017-09-22 CN CN201780087219.1A patent/CN110325366A/zh active Pending
- 2017-09-22 WO PCT/EP2017/074032 patent/WO2018153509A1/de not_active Ceased
- 2017-09-22 US US16/487,499 patent/US10696041B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US10696041B2 (en) | 2020-06-30 |
| DE102017202941A1 (de) | 2018-08-23 |
| US20200055306A1 (en) | 2020-02-20 |
| WO2018153509A1 (de) | 2018-08-30 |
| JP2020508242A (ja) | 2020-03-19 |
| CN110325366A (zh) | 2019-10-11 |
| EP3585616B1 (de) | 2020-12-16 |
| JP6720419B2 (ja) | 2020-07-08 |
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