EP0410400B1 - Dispositif pour l'alimentation en matériau de plieuses et dispositifs de mouillage dans des machines à imprimer - Google Patents

Dispositif pour l'alimentation en matériau de plieuses et dispositifs de mouillage dans des machines à imprimer Download PDF

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Publication number
EP0410400B1
EP0410400B1 EP90114206A EP90114206A EP0410400B1 EP 0410400 B1 EP0410400 B1 EP 0410400B1 EP 90114206 A EP90114206 A EP 90114206A EP 90114206 A EP90114206 A EP 90114206A EP 0410400 B1 EP0410400 B1 EP 0410400B1
Authority
EP
European Patent Office
Prior art keywords
valve
dosaging
rotary printing
housing
following
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.)
Expired - Lifetime
Application number
EP90114206A
Other languages
German (de)
English (en)
Other versions
EP0410400A2 (fr
EP0410400A3 (en
Inventor
Max Nawrat
Heinrich Beyer
Volkmar Heyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Planatol - Klebetechnik Gesellschaft Mit Beschraen
Original Assignee
PLANATOL - KLEBETECHNIK GmbH
Planatol - Klebetechnik GmbH
PLANATOL KLEBETECHNIK GES MIT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PLANATOL - KLEBETECHNIK GmbH, Planatol - Klebetechnik GmbH, PLANATOL KLEBETECHNIK GES MIT filed Critical PLANATOL - KLEBETECHNIK GmbH
Priority to AT90114206T priority Critical patent/ATE96760T1/de
Publication of EP0410400A2 publication Critical patent/EP0410400A2/fr
Publication of EP0410400A3 publication Critical patent/EP0410400A3/de
Application granted granted Critical
Publication of EP0410400B1 publication Critical patent/EP0410400B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/30—Folding in combination with creasing, smoothing or application of adhesive

Definitions

  • the invention relates to a device for supplying material to folding and dampening systems on rotary printing presses with the features in the preamble of the main claim.
  • Folding gluing and dampening systems are loaded with different materials, for example adhesives or the so-called softening, a solution with relaxed water for moistening the paper web for a clean and damage-free fold formation.
  • the materials should emerge from the application nozzle in a stream which is as thin as possible and at the same time constant.
  • the fluid flow must be adapted to the paper web speed of the rotary printing press. The problem here is that the web speeds of modern rotary printing presses are very high, for example 13 to 15 meters per second, while at the same time only relatively low supply pressures are available or desirable in the material supply system for the folder gluing and dampening system.
  • US-A-2 747 865 shows a seam gluing system in connection with a printing or binding machine.
  • a low-viscosity adhesive is fed via lines to two application nozzles.
  • Three shut-off taps are arranged in the feed lines, one of which is designed as a main tap and the other two as line taps assigned to the application nozzles.
  • the invention solves this problem with the features of the main claim.
  • the arrangement of a metering valve in the line of the material supply system in front of the application nozzle allows a selective flow rate setting without negative effects on the supply pressure.
  • the volume flow emerges evenly and without pulsation at the application nozzle. It can be quickly and easily set to the desired value and adapted to different paper web speeds.
  • the disturbance variables such as different line losses, temperature and pressure fluctuations, changes in viscosity and friction losses can be largely eliminated or compensated for.
  • a dosing valve in the material supply system not only has advantages if the supply pressures are to be low for plant-specific reasons.
  • the metering valve also enables a significant increase in the supply pressure, since the application pressure at the application nozzle nevertheless remains desirably low due to the pressure drop in the metering valve.
  • a pressure increase in the material supply system up to the metering valve has the advantage that the line diameter can be reduced while on the other hand, it is also possible to transport materials over even greater distances. Viscous liquids can also be pumped. Overall, the influence of the disturbance variables present in the material supply system is also reduced with increasing supply pressure.
  • the folder gluing and dampening system equipped with such a material supply system can work more effectively and economically.
  • a single metering valve to which several application nozzles are connected can suffice.
  • the metering valves can be adjusted by hand, and operation can also be carried out manually or mechanically via an electric motor or other control device. In this case, it is advisable to place the metering valve as close as possible to the associated application nozzle so that the operator can check the order and adjust the metering valve accordingly.
  • the metering valve is set automatically. For this purpose, it is connected to a downstream flow meter and a control circuit. In this arrangement, not only disturbances are corrected.
  • An interface to the rotary printing press can also be switched via a preferably microprocessor-controlled computer integrated in the control loop, so that its settings, in particular the paper web speed, can be transferred to the material supply system.
  • the computer can be designed as a separate component or can be integrated in the control of the fold gluing and dampening system.
  • the material supply system according to the invention is particularly suitable for fold gluing and dampening systems and the supply with liquid and pasty masses, such as glue, softening, dishwashing detergent and cleaning agents, etc., but can also be used in other areas of application.
  • the device for material supply according to the invention can work with conventional metering valves. However, these cannot be set as precisely as desired for small flow rates and also have certain leakage losses, which can act as a clear error with small flow rates.
  • a metering valve which is distinguished by a particularly high resolution and fine adjustability.
  • the metering valve according to the invention is also particularly suitable for low supply pressures of up to approximately 3 bar. It can also be used with advantage for adhesives, softening and other liquid or pasty masses in folder gluing and dampening systems or the like.
  • the metering valve according to the invention has a slotted sleeve and a metering mandrel, which enable a particularly exact setting of the flow rate with minimal leakage losses. This also minimizes the sources of error in the material supply system.
  • the jacket openings of the slotted sleeve and the tapered end of the metering mandrel which is preferably designed as a calibration cone
  • the jacket openings can be designed as a circular, triangular, oval or slit-shaped opening, depending on the desired characteristic and the material to be conveyed.
  • the angle of inclination of the calibration cone can be changed.
  • the slotted sleeve is detachably arranged and can be replaced.
  • the metering valve according to the invention has at least one slide valve for setting and in connection with the control circuit also for regulating the flow rate.
  • a seat valve For a safe shut-off of the volume flow for intermittent application or when the system is at a standstill, it is advisable to install a seat valve.
  • Several slide valves can also have a common and externally arranged seat valve. To achieve a compact unit, however, it is advisable to connect the seat and slide valve and to accommodate them in a common housing.
  • the seat valve is advantageously pneumatically controlled via the compressed air supply, which is usually present anyway.
  • a membrane preferably a membrane package, is used for the safe separation of the conveyed materials and the compressed air.
  • FIG. 1 and 2 show a material supply system (1) of a folder gluing and dampening system (2).
  • the latter is installed in a high-speed rotary printing press (not shown) in which one or more paper webs run at a speed of 13 to 15 meters per second or more.
  • Fig. 4 illustrates a part of the system in a functional diagram.
  • glue and on the other hand softening for fold moistening in an application strip (42) is applied. Then the paper webs (41) are brought together and, depending on the type of end product to be manufactured, folded, glued, cut or further processed.
  • the application nozzles (3) are part of the material supply system (1) and the folder gluing and dampening system (2). 1 and 2, they are fed from a supply and conveying device (5) via lines (4).
  • the supply and conveying device (5) here consists in detail of a pressure tank (6) and a compressed air supply (7). Alternatively, supply from large containers via controllable pumps, intermediate containers etc. is also possible.
  • softening is supplied, which is conveyed by means of a pressure of up to 3 bar via the line (4) through a filter (11) and a branching point to two application nozzles (3).
  • a check valve (12) is connected upstream of the filter (11).
  • a metering valve (8) is arranged in the line (4), with which the flow rate can be adjusted by means of an actuator (21).
  • the metering valve (8) consists of a slide valve (9) on which the flow rate is set by means of the actuator (21) leaves.
  • the metering valve (8) also includes a seat valve (10) to shut off the volume flow.
  • the seat valve (10) is accordingly arranged in front of the slide valve (9) and is pneumatically controlled from the pressure supply (7) via a control valve (13) and a control line (14).
  • the check valve (12) is also controlled pneumatically so that the central line can be closed when changing the pressure tank (6).
  • the control valve (13) is actuated electromagnetically.
  • the actuator (21) is designed as a manually operated rotary handle.
  • the actuator (21) can also be designed as a linear slide valve or in some other way. If the material supply system (1) is in operation, the operator monitors the volume flow emerging at the application nozzle (3) and adjusts the metering valve (8) or the slide valve (9) according to the desired specifications.
  • Fig. 2 shows a way to automate and control the adjustment process.
  • a flow meter (16) is arranged, which measures the volume flow.
  • the flow meter (16) is part of a control circuit (15) and reports the measured actual values via a signal line (17) to a computer (18), where they are compared with a target value.
  • an actuating signal is sent to a servomotor (20) on a further signal line (17) via an amplifier (19), which actuates the actuating member (21) accordingly.
  • the servomotor (20) is preferably designed as an electrical stepper motor, but can also be designed in a different way.
  • the computer (18) has a microprocessor and is integrated in the control of the folder gluing and dampening system (2). He also has an interface (43) to the rotary printing press, at which operating data of the rotary printing press, in particular the speed of the paper webs (41), can be queried.
  • the computer (18) has an internal electronic memory in which the setpoints for the volume flow to the application nozzles (3) associated with the different web speeds are defined. The setpoints can also be calculated using a program in operation.
  • FIGS. 1 and 2 An intermediate solution between FIGS. 1 and 2 provides the arrangement of a servomotor (20) without the control circuit (15). This enables remote adjustment of the metering valves (8) to be carried out by the operator, which can then be located correspondingly far from the application nozzles (3). In this embodiment, the flow meter (16) with a corresponding display for the operator can also be present.
  • Fig. 3 shows the metering valve (8) in longitudinal section.
  • the seat and slide valve (10,9) are housed in a common valve housing (31), which is closed on both sides by valve covers (32,33).
  • the seat valve (10) and the slide valve (9) can also be accommodated in separate housings and can also be spaced apart from one another over larger distances.
  • the volume flow enters the seat valve (10) at the inlet (22) and, when the blocking ball (24) is open, passes via a downward flow channel (28) into the slide valve (9), at the outlet (23) of which it exits again.
  • the seat valve (10) consists of a membrane (26) which can be pressurized with compressed air via a compressed air connection (27), to the front of which a longitudinally guided pressure pin (25) is attached. To open the valve, the pressure pin (25) presses on the locking ball (24) and lifts it against the restoring force of the compression spring from the valve seat.
  • the membrane (26) consisting of several layers closes off the compressed air chamber against the volume flow.
  • the slide valve (9) has a slotted sleeve (29) in which the metering mandrel (36) is guided longitudinally with its cylindrical shaft under tight contact.
  • the slit sleeve (29) has two diametrically opposite jacket openings (30) and is mounted transversely to the flow channel (28) in the valve housing (31). In this way, the jacket openings (30) open into the flow channel (28) and allow the volume flow to reach the metering mandrel (36).
  • the dosing mandrel (36) has at its rear end an adjusting screw (34) which is in engagement with a counter thread in the valve housing (31). Then a stop (35) and the actuator (21) designed here as a rotary handle are arranged.
  • the metering mandrel (36) can be moved forwards and backwards by rotating the actuator (21), its stroke movements being limited by the stop (35) coming into contact with the housing walls.
  • the shaft of the dosing mandrel (36) merges on the other side after a control edge (38) into a calibration cone (37).
  • a spring (39) presses against the front mandrel end, which is supported in a bore in the housing cover (32) and also dips into the slotted sleeve (29).
  • the shaft of the dosing mandrel (36) is located in the passage area between the two jacket openings (30) and blocks the flow. If the dosing mandrel (36) is turned back, the control edge (38) and the subsequent calibration cone (37) clear the flow opening. The opening width increases the further the metering mandrel (36) is turned back.
  • the flow rate depends essentially on the shape and size of the jacket openings (30), the shape of the calibration cone (37) and the stroke position of the dosing mandrel (36).
  • the delivery pressure of the injected volume flow is also included.
  • the jacket openings (30) can be triangular, circular, oval, slot-shaped or in some other way.
  • the tapering end of the dosing mandrel (36) can also have a different shape, for example a sloping and at the same time spherical contour.
  • the further design of the jacket openings (30) and the tapered end (37) depends on the viscosity of the material to be conveyed, the desired characteristic, the pressure range and other factors. In the embodiment shown with a circular jacket opening (30) and a calibration cone (37), with a mandrel stroke of approx. 6 mm, flow rates of 0 to 120 g per minute can be set, the supply pressures not exceeding 3 bar.
  • the slotted sleeve (29) is pressed into the valve housing (31) and is held in its position by the housing cover (32). After removing the cover, it can be ejected with a suitable tool and exchanged for another slotted sleeve (29).
  • the dosing mandrel (36) can also be removed and replaced.
  • the material supply system (1) and the metering valve (8) shown are intended and designed for softening. With appropriate adaptation to the other material, both can also be used for glue application or other liquid or pasty masses in a seam gluing and dampening system (2).
  • a folder gluing and dampening system (2) can have several separate material supply systems (1) or a combined system for the application of different masses.

Landscapes

  • Rotary Presses (AREA)
  • Coating Apparatus (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Joints Allowing Movement (AREA)

Claims (14)

  1. Dispositif pour alimenter en matériau des installations de pliage avec encollage et d'humidification (2) dans des presses rotatives, comportant un dispositif d'alimentation et d'entraînement (5) pour des masses liquides ou pâteuses, qui est raccordé par l'intermédiaire d'un système de canalisations (4) à au moins une buse d'application (3), une soupape de dosage (8) étant disposée dans la canalisation (4) en amont de la buse d'application (3), caractérisé par le fait que la soupape de dosage (8) est réglable, un débitmètre (16) équipé d'un circuit de réglage (15) étant disposé entre la soupape de dosage (8) et la buse d'application (3).
  2. Dispositif suivant la revendication 1, caractérisé par le fait qu'une soupape de dosage (8) est montée en amont de chaque buse d'application (3).
  3. Dispositif suivant la revendication 2, caractérisé par le fait que dans le circuit de réglage (15) est intégré un calculateur (18), qui possède une interface (43) de raccordement à la presse rotative pour l'introduction de paramètres de la machine.
  4. Dispositif suivant la revendication 1 ou l'une des suivantes, caractérisé par le fait que la soupape de dosage (8) est commandée mécaniquement, électriquement et/ou pneumatiquement.
  5. Dispositif suivant la revendication 1 ou l'une des suivantes, caractérisé par le fait que la soupape de dosage (8) possède une soupape à tiroir (9) pourvue d'une douille fendue (29), dans laquelle une broche de dosage (36) possédant une extrémité rétrécie (37) et une arrête de commande (38), est guidée longitudinalement en translation.
  6. Dispositif suivant la revendication 5, caractérisé par le fait que la douille fendue (29) est disposée transversalement par rapport au canal de passage (28) et comporte deux ouvertures opposées (30) dans son enveloppe.
  7. Dispositif suivant la revendication 5 ou 6, caractérisé par le fait que la douille fendue (22) est fixée de façon amovible dans le boîtier de soupape (31).
  8. Dispositif suivant la revendication 5, 6 ou 7, caractérisé par le fait que l'extrémité de forme rétrécie (37) de la broche de dosage (36) est agencée sous la forme d'un cône de calibrage.
  9. Dispositif suivant les revendications 6 et 8, caractérisé par le fait qu'au moins l'ouverture (30) de l'enveloppe, qui est tournée vers le côté arrivée, et le cône de calibrage (37) sont accordés l'un sur l'autre de manière à former des courbes caractéristiques de débit différentes.
  10. Dispositif suivant la revendication 5 ou l'une des suivantes, caractérisé par le fait que la broche de dosage (36) possède, à une extrémité, une vis de réglage (34) et un organe de réglage (21), tandis qu'un ressort (39) attaque son autre extrémité.
  11. Dispositif suivant la revendication 5 ou l'une des suivantes, caractérisé par le fait que la douille fendue (29) possède, sur sa face intérieure, une garniture d'étanchéité (40) pour l'arbre de la broche de dosage (36).
  12. Dispositif suivant la revendication 5 ou l'une des suivantes, caractérisé par le fait qu'une soupape à siège commandée (10), qui bloque le passage, est disposée en amont du soupape à tiroir (9).
  13. Dispositif suivant la revendication 12, caractérisé par le fait que la soupape à siège (10) et la soupape à tiroir (9) sont disposées dans un boîtier commun (31).
  14. Dispositif suivant la revendication 12 ou 13, caractérisé par le fait que la soupape à siège (10) possède une membrane (26) commandée pneumatiquement et comportant un poussoir (25), qui agit sur une bille de blocage (24) chargée par un ressort.
EP90114206A 1989-07-28 1990-07-25 Dispositif pour l'alimentation en matériau de plieuses et dispositifs de mouillage dans des machines à imprimer Expired - Lifetime EP0410400B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90114206T ATE96760T1 (de) 1989-07-28 1990-07-25 Vorrichtung zur materialversorgung von falzklebe- und befeuchtungsanlagen an rotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3925080 1989-07-28
DE3925080A DE3925080A1 (de) 1989-07-28 1989-07-28 Vorrichtung zur materialversorgung und dosierventil

Publications (3)

Publication Number Publication Date
EP0410400A2 EP0410400A2 (fr) 1991-01-30
EP0410400A3 EP0410400A3 (en) 1991-05-08
EP0410400B1 true EP0410400B1 (fr) 1993-11-03

Family

ID=6386080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114206A Expired - Lifetime EP0410400B1 (fr) 1989-07-28 1990-07-25 Dispositif pour l'alimentation en matériau de plieuses et dispositifs de mouillage dans des machines à imprimer

Country Status (5)

Country Link
EP (1) EP0410400B1 (fr)
AT (1) ATE96760T1 (fr)
DD (1) DD296640A5 (fr)
DE (2) DE3925080A1 (fr)
ES (1) ES2045675T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2397231B2 (fr) † 2010-06-18 2018-04-11 Focke & Co. (GmbH & Co. KG) Procédé et dispositif d'application de colle sur des sections

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9110790U1 (de) * 1991-08-31 1992-09-24 Planatolwerk Willy Hesselmann Chemische und Maschinenfabrik für Klebetechnik GmbH & Co KG, 83101 Rohrdorf Vorrichtung zum Auftragen von Klebstoffen auf bewegte Bahnen oder Werkstücke
DE10245658A1 (de) * 2002-09-30 2004-04-15 Koenig & Bauer Ag Verfahren und Vorrichtung zur automatischen Materialversorgung einer Bearbeitungsmaschine sowie Steuersystem und Druckerei mit einem Steuersystem
DE102018131567A1 (de) * 2018-12-10 2020-06-10 Vermes Microdispensing GmbH Dosiersystem und Verfahren zur Steuerung eines Dosiersystems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR788125A (fr) * 1935-04-01 1935-10-04 Marinoni Sa Dispositif de collage des bandes de papier pour machines à imprimer
US2747865A (en) * 1951-06-02 1956-05-29 Jr Joseph R Marshall Booklet forming means and method
DE2022114B2 (de) * 1970-05-06 1973-11-22 Maschf Augsburg Nuernberg Ag Einrichtung an Offsetrotationsdruckmaschinen zur Aufrechterhaltung der erforderlichen Feuchtmittelschichtstärke
US4394873A (en) * 1980-04-28 1983-07-26 Ryco Graphic Manufacturing, Inc. Fluid valve with compressible channel
DE3435213A1 (de) * 1984-09-26 1986-04-03 Walter Hofmann GmbH, 2084 Rellingen Anordnung zur automatischen konstanthaltung der schichtdicke von markierungslinien o.dgl.
DE3506393A1 (de) * 1985-02-23 1986-08-28 Windmöller & Hölscher, 4540 Lengerich Leimauftragsvorrichtung
DE3740045A1 (de) * 1987-10-23 1989-05-03 Kotterer Grafotec Verfahren und vorrichtung zum auftragen wenigstens eines leimstreifens auf mindestens eine materialbahn
DE8904692U1 (de) * 1989-04-14 1989-05-24 Sasse, Hans-Henning, 4030 Ratingen Pneumatischer Materialdruckregler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2397231B2 (fr) † 2010-06-18 2018-04-11 Focke & Co. (GmbH & Co. KG) Procédé et dispositif d'application de colle sur des sections

Also Published As

Publication number Publication date
EP0410400A2 (fr) 1991-01-30
EP0410400A3 (en) 1991-05-08
DE3925080A1 (de) 1991-02-07
DE59003307D1 (de) 1993-12-09
ATE96760T1 (de) 1993-11-15
DD296640A5 (de) 1991-12-12
ES2045675T3 (es) 1994-01-16

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