EP2123468A2 - Gluing device - Google Patents
Gluing device Download PDFInfo
- Publication number
- EP2123468A2 EP2123468A2 EP20090006373 EP09006373A EP2123468A2 EP 2123468 A2 EP2123468 A2 EP 2123468A2 EP 20090006373 EP20090006373 EP 20090006373 EP 09006373 A EP09006373 A EP 09006373A EP 2123468 A2 EP2123468 A2 EP 2123468A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- adhesive
- belieimeinrichtung
- control
- metering
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42C—BOOKBINDING
- B42C7/00—Manufacturing bookbinding cases or covers of books or loose-leaf binders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/086—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith
- B05C1/0865—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith the cooperating element being a roller, e.g. a coating roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42C—BOOKBINDING
- B42C9/00—Applying glue or adhesive peculiar to bookbinding
Definitions
- the present invention relates to a gluing device for the full-surface gluing of reference webs guided past the gluing device in book cover machines according to the preamble of claim 1.
- Such Beleim wisdomen are, for example from the DE 100 57 599 A1 , known as two-roller gluing units in book cover machines.
- the adhesive usually an animal hot glue or a dispersion adhesive
- the adhesive conveyor is pumped by the adhesive conveyor from a reservoir between the rollers. Due to the rotary movement of the applicator roll, adhesive is led out through the gap present in the vicinity of the application and metering rollers. A part of the adhering to the applicator roll adhesive is then discharged in a rolling motion on the reference benefit.
- the thickness of the job is determined by the distance between the rollers, which is why the metering roller is arranged displaceable by manual, acting on the two bearings adjusting the applicator roll.
- the amount of adhesive emerging from the gap is not determined solely by the distance between the rolls.
- Other influencing factors are u.a. the viscosity and the rolling speed of rotation.
- Adhesive of high viscosity creates a high dynamic pressure in the area of approach of the rollers, whereby a larger amount of adhesive is discharged at the same gap cross-section.
- a similar effect occurs as the roller rotation speed increases.
- the glue is literally pumped out. This is counteracted by the reduction of the roll spacing, which, however, at low speed leads to almost no more adhesive escaping from the nip and the small amount of adhesive immediately drying on the applicator roll.
- the roll spacing must be constantly corrected.
- a two-roller gluing unit is known in which the metering roller is pressed with a defined force against the applicator roll to produce a thin adhesive film on the applicator roll.
- hydraulically connected hydraulic cylinders are provided with each other, so that even with inaccurate adjustment of the threaded spindles a uniform application of force to the two bearings adjusts the metering and forms a nip of almost constant width over the entire width of the roll.
- the disadvantage is that the gap width increases with increasing back pressure in the vicinity of the rollers, which then reinforced by the already high back pressure much more adhesive than desired is carried out.
- the two-roller gluing unit is suitable for gluing with constant roller speeds.
- the present invention has the object, a gluing device according to the preamble of claim 1 such that at constant machine speeds a constant adhesive discharge is ensured.
- an automatic adjustment for the roll spacing which has at least one controlled by a control actuator, which is assigned a storable in the control device and defined in dependence of the rolling rotational speed control curve, wherein the control curve of at least one presettable via the control device manipulated variable is determinable.
- each roller rotation speed is assigned a certain roller distance, which is approached by the actuator accordingly.
- the control curve is stored in the control device and can be based on empirically determined values, in particular as regards its basic course.
- the control curve may be defined such that at higher roller speeds, less adhesive than at low speeds is dispensed with, which may be technologically advantageous and contrary to the disclosed dispensing behavior of a prior art two-roller gluer.
- a controlled application rate enables minimal glue consumption, which reduces costs and minimizes contamination of the book cover machine. At the same time, the quality can be ensured since there is no adhesive undersupply at low roller speeds.
- the control cam can be adapted to the respective application conditions or of the type of adhesive used in each case by inputting a corresponding distance via the control device to a specific roller rotational speed.
- the resulting overall course of the control curve can either be parallel shifted, stretched or inclined to the previous Be cam.
- the input of the manipulated variable can take place during the run, whereby a rapid correction of the adhesive application in the respective order situation is made possible. Due to the simultaneous redefinition of the cam, the change is also effective at other roller speeds, so that, for example, the desired order strength for the full speed range of the book cover machine is present.
- the adjustment device has a simple structure and eliminates the discharge effect in two-roller gluing units that more adhesive is discharged with increasing roller rotation speed.
- Beleim adopted not the contact force of the rollers is controlled to each other, but the actual gap width. A gap enlargement due to a higher dynamic pressure does not occur.
- the control curve can be adapted even more precisely to the desired application characteristic if the control curve can be determined by two manipulated variables which can be predetermined via the control device, for example by one manipulated variable at a maximum and minimum rolling rotational speed.
- the input of the respective manipulated variable via a teach-in device is advantageous in that the operator incrementally changes the distance via setting buttons to the optimum setting and this distance is then transferred as the manipulated variable of the control device.
- control curve can also be defined as a function of further parameters.
- the type of adhesive, the adhesive viscosity, the adhesive application temperature and / or one or more properties of the cover material can be used, either by manual input or by automatic detection by means of corresponding sensors, and a corresponding control curve defined thereafter or from a number of deposited Cams is selected.
- control cam has a degressive course, with a minimum roll spacing at high rotational speeds.
- the two spindles associated with the end bearings of the metering roller may be drive-connected with a single adjusting motor or they each have separate adjusting motors, which in turn are connected to one another via the control device.
- the gluing device takes no damage by fallen into the gap foreign body, can be cushioned as an overload protection the end bearing of the metering roller via correspondingly biased compression springs against associated adjustable by the actuator holders, each with a maximum distance between the holder and bearing limiting tie rod.
- the gluing device 1 consists essentially of the rotatably mounted in frame-fixed bearings 14, during operation substantially synchronously with the utility cylinder 4 driven applicator roll 10 and an associated metering roller 11, which in the embodiment via gears 25, 26 driven by the applicator roll 10 in the opposite direction of rotation is.
- the metering roller 11 may also be stationary or driven at a slow speed opposite to the applicator roll 10.
- the metering roller 11 is rotatably mounted end in slidably guided bearings 15. These are added to this frame-mounted guides 19. As an overload protection, the bearings 15 are spring-loaded against biased plate springs 18 against associated holder 16. A pull rod 17 defines a maximum distance between bearing 15 and holder 16.
- the bias voltage is designed so that the set roll distance D during regular operation remains constant without springing due to the ram pressure prevailing in the vicinity of the rollers 10, 11. Only in case of an accident, if e.g. Foreign bodies are in the adhesive 12, the metering roller 11 deviates.
- each adjusting spindle 21 could be assigned its own adjusting motor 24.1 or 24.2, whereby a positioning of the metering roller 11 which is entangled with the applicator roller 10 could be made possible and the roller distance D increases or decreases from one side to the other side.
- a controller 30 For automatic adjustment of the roll spacing D, a controller 30 is provided in which a control cam 40 is stored, after which the adjusting motor 24 via the associated motor drive 31 and the position feedback of the encoder 24 a on the adjusting motor 24 relevant to the roller distance D position of the holder 16th starts up.
- both adjusting motors 24.1 and 24.2 are connected to the controller 30 and thereby connected to one another.
- control cam 40 is defined as a function of the clock power P or the rotational speed v of the applicator roller 10, for which reason the controller 30 evaluates the signal of a rotary encoder 32 connected to the applicator roller 10.
- the control cam 40 has a degressive course, with a minimum roll spacing D min at high rotational speeds v and high cycle powers P.
- the course of the cam 40 on the specification of at least one of a specific roller speed v roller or clock power P associated control variable 41 a and 41 b definable.
- the course of the cam 40 is provided by the specification of a first manipulated variable 41 a and a second manipulated variable 41 b, wherein a minimum roller distance D min at a maximum clock power P max and a maximum roller distance D max are given at a minimum clock power P min ,
- the course of an alternative second cam 44 is indicated by dashed lines.
- a roller rotation speed v roller and a roller distance D max corresponding to the minimum cycle power P min are provided.
- the specification of said manipulated variables 41 a, b can be made via a control terminal 30 connected to the control terminal 33, which displays the roller distance D according to the current manipulated variable 43 via a display 34.
- By means of an input field 35 can be new manipulated variables 41 a, b enter.
- By generating corresponding value points, a new control curve 40 is then formed, which runs through the manipulated variables now specified.
- the default does not necessarily have to be for the minimum or maximum clock power.
- a new value for the roller distance D could also be specified at the respective current cycle power, wherein the control cam 40 then parallel displaced, stretched or inclined to the previous control curve.
- this is an operation selector switch 36 on the control terminal 33.
- the roll distance D is determined in accordance with the currently stored control cam 40 and automatically approached by the adjusting motor 24.
- an incremental change of the actual roller distance D can be made by the operator via the plus / minus buttons in the input field 35. If the change has proven to be useful, the found roll distance D can be determined as Save new preset size via the position Save 36 c by teach-in and the cam 40 is changed accordingly.
- the mode selector switch 36 is then rotated back to the automatic mode 36 a position.
- cams 40 may be stored in the controller 30 depending on the type of adhesive, adhesive viscosity, adhesive application temperature, and / or one or more characteristics of the cover material, either manually retrievable via the operator panel 33 or automatically selectable by the controller 30 in accordance with incoming sensor signals 37 ,
- the Beleim wisdom invention allows the rapid adjustment of the control cam 40 when the behavior of the adhesive during discharge from the two rollers 10, 11, when wetting the reference benefit 2 or when gluing the adhesive Adhesive Reference 2 and cover panels 3 changes, without requiring elaborate and expensive sensors and measuring equipment are used.
- the experience of the operator who can usually already visually or by mere palpation of the adhesive on the applicator roll 10 and / or on the reference benefit 2 recognize the right setting, is here combined with a simple and inexpensive automatic for the distance adjustment. The operator is not taken the control of the adhesive application. He ensures with his expertise the qualitative production of book covers.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Making Paper Articles (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
Die vorliegende Erfindung bezieht sich auf eine Beleimeinrichtung zum vollflächigen Beleimen von an der Beleimeinrichtung vorbei geführten Bezugsnutzen in Buchdeckenmaschinen gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a gluing device for the full-surface gluing of reference webs guided past the gluing device in book cover machines according to the preamble of claim 1.
Derartige Beleimeinrichtungen sind, beispielsweise aus der
Die aus dem Spalt austretende Klebstoffmenge wird aber nicht nur von dem Walzenabstand bestimmt. Weitere Einflussfaktoren sind u.a. die Viskosität und die Walzendrehgeschwindigkeit. Klebstoff von hoher Viskosität erzeugt einen hohen Staudruck im Annäherungsbereich der Walzen, wodurch eine größere Klebstoffmenge bei gleichem Spaltquerschnitt ausgetragen wird. Ein ähnlicher Effekt tritt auf, wenn sich die Walzendrehgeschwindigkeit erhöht. Der Klebstoff wird förmlich herausgepumpt. Dem begegnet man mit der Verkleinerung des Walzenabstands, was aber bei niedriger Geschwindigkeit dazu führt, dass nahezu kein Klebstoff mehr aus dem Spalt austritt und der wenige Klebstoff auf der Auftragswalze sogleich antrocknet. Für einen stabilen Prozess ist der Walzenabstand also ständig nachzukorrigieren.However, the amount of adhesive emerging from the gap is not determined solely by the distance between the rolls. Other influencing factors are u.a. the viscosity and the rolling speed of rotation. Adhesive of high viscosity creates a high dynamic pressure in the area of approach of the rollers, whereby a larger amount of adhesive is discharged at the same gap cross-section. A similar effect occurs as the roller rotation speed increases. The glue is literally pumped out. This is counteracted by the reduction of the roll spacing, which, however, at low speed leads to almost no more adhesive escaping from the nip and the small amount of adhesive immediately drying on the applicator roll. For a stable process, the roll spacing must be constantly corrected.
Aus der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Beleimeinrichtung gemäß dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass bei wechselnden Maschinengeschwindigkeiten ein konstanter Klebstoffaustrag gewährleistet ist. Bei Verwendung unterschiedlicher Klebstoffe soll die Beleimeinrichtung schnell und einfach auf die Bedingungen bzw. Eigenschaften des jeweiligen Klebstoffs eingestellt werden können.The present invention has the object, a gluing device according to the preamble of claim 1 such that at constant machine speeds a constant adhesive discharge is ensured. When using different adhesives Beleimeinrichtung should be able to be quickly and easily adjusted to the conditions or properties of each adhesive.
Diese Aufgabe wird erfindungsgemäß durch eine automatische Verstelleinrichtung für den Walzenabstand gelöst, die wenigstens einen von einer Steuereinrichtung gesteuerten Stellantrieb aufweist, dem eine in der Steuervorrichtung speicherbare und in Abhängigkeit der Walzendrehgeschwindigkeit definierte Steuerkurve zugeordnet ist, wobei die Steuerkurve von wenigstens einer über die Steuereinrichtung vorgebbaren Stellgröße bestimmbar ist.This object is achieved by an automatic adjustment for the roll spacing, which has at least one controlled by a control actuator, which is assigned a storable in the control device and defined in dependence of the rolling rotational speed control curve, wherein the control curve of at least one presettable via the control device manipulated variable is determinable.
In der Steuerkurve ist jeder Walzendrehgeschwindigkeit ein bestimmter Walzenabstand zugeordnet, welcher vom Stellantrieb entsprechend angefahren wird. Die Steuerkurve ist in der Steuervorrichtung gespeichert und kann auf empirisch ermittelte Werte basieren, insbesondere was ihren grundsätzlichen Verlauf betrifft. Beispielsweise kann die Steuerkurve derart definiert sein, dass bei höheren Walzendrehgeschwindigkeiten weniger Klebstoff als bei niedrigen Geschwindigkeiten ausgetragen wird, was technologisch vorteilhaft sein kann und konträr zum dargelegten Austragverhalten eines Zwei-Walzen-Leimwerks aus dem Stand der Technik ist. Eine geregelte Auftragsmenge ermöglicht minimale Klebstoffverbräuche, was Kosten senkt und die Verschmutzung der Buchdeckenmaschine gering hält. Gleichzeitig kann die Qualität sichergestellt werden, da es nicht zu einer Klebstoffunterversorgung bei niedrigen Walzendrehgeschwindigkeiten kommt.In the control cam each roller rotation speed is assigned a certain roller distance, which is approached by the actuator accordingly. The control curve is stored in the control device and can be based on empirically determined values, in particular as regards its basic course. For example, the control curve may be defined such that at higher roller speeds, less adhesive than at low speeds is dispensed with, which may be technologically advantageous and contrary to the disclosed dispensing behavior of a prior art two-roller gluer. A controlled application rate enables minimal glue consumption, which reduces costs and minimizes contamination of the book cover machine. At the same time, the quality can be ensured since there is no adhesive undersupply at low roller speeds.
Durch die Vorgabe wenigstens einer Stellgröße kann die Steuerkurve an die jeweiligen Auftragsbedingungen bzw. des jeweils zum Einsatz kommenden Klebstofftyps angepasst werden, indem zu einer bestimmten Walzendrehgeschwindigkeit ein entsprechender Abstand über die Steuereinrichtung eingegeben wird. Der sich daraus ergebene Gesamtverlauf der Steuerkurve kann entweder parallelverschoben, gestreckt oder geneigt zur vorherigen Steuerkurve sein. Die Eingabe der Stellgröße kann während des Laufs erfolgen, wodurch eine schnelle Korrektur des Klebstoffauftrags in der jeweiligen Auftragssituation ermöglicht wird. Durch die gleichzeitige Neudefinition der Steuerkurve ist die Änderung auch bei anderen Walzendrehgeschwindigkeiten entsprechend wirksam, sodass bspw. die gewünschte Auftragsstärke für den vollen Geschwindigkeitsbereich der Buchdeckenmaschine vorliegt.By specifying at least one manipulated variable, the control cam can be adapted to the respective application conditions or of the type of adhesive used in each case by inputting a corresponding distance via the control device to a specific roller rotational speed. The resulting overall course of the control curve can either be parallel shifted, stretched or inclined to the previous Be cam. The input of the manipulated variable can take place during the run, whereby a rapid correction of the adhesive application in the respective order situation is made possible. Due to the simultaneous redefinition of the cam, the change is also effective at other roller speeds, so that, for example, the desired order strength for the full speed range of the book cover machine is present.
Die Verstelleinrichtung ist von einfachem Aufbau und eliminiert den Austrageffekt bei Zwei-Walzen-Leimwerken, dass mit zunehmender Walzendrehgeschwindigkeit mehr Klebstoff ausgetragen wird. Bei der Beleimeinrichtung wird nicht die Anpresskraft der Walzen zueinander geregelt, sondern die tatsächliche Spaltbreite. Eine Spaltvergrößerung durch einen höheren Staudruck tritt nicht auf.The adjustment device has a simple structure and eliminates the discharge effect in two-roller gluing units that more adhesive is discharged with increasing roller rotation speed. When Beleimeinrichtung not the contact force of the rollers is controlled to each other, but the actual gap width. A gap enlargement due to a higher dynamic pressure does not occur.
Die abhängigen Ansprüche definieren bevorzugte Ausführungsformen der erfindungsgemäßen Beleimeinrichtung.The dependent claims define preferred embodiments of the gluing device according to the invention.
Die Steuerkurve kann noch genauer an die gewünschte Auftragscharakteristik angepasst werden, wenn die Steuerkurve von zwei über die Steuereinrichtung vorgebbaren Stellgrößen bestimmbar ist, beispielsweise durch jeweils eine Stellgröße bei maximaler und minimaler Walzendrehgeschwindigkeit. Vorteilhaft ist die Eingabe der jeweiligen Stellgröße über eine Teach-in-Einrichtung, indem der Bediener den Abstand über Stelltasten inkrementell bis zur optimalen Einstellung verändert und dieser Abstand dann als Stellgröße der Steuereinrichtung übergeben wird.The control curve can be adapted even more precisely to the desired application characteristic if the control curve can be determined by two manipulated variables which can be predetermined via the control device, for example by one manipulated variable at a maximum and minimum rolling rotational speed. The input of the respective manipulated variable via a teach-in device is advantageous in that the operator incrementally changes the distance via setting buttons to the optimum setting and this distance is then transferred as the manipulated variable of the control device.
Die Steuerkurve kann auch in Abhängigkeit weiterer Parameter definiert sein. So kann in der Steuereinrichtung der Klebstofftyp, die Klebstoffviskosität, die Klebstoffauftragstemperatur und/oder eine oder mehrere Eigenschaften des Bezugsmaterials herangezogen werden, entweder durch manuelle Eingabe oder durch automatische Ermittlung mittels entsprechender Sensoren, und eine entsprechende Steuerkurve danach definiert bzw. aus einer Reihe von hinterlegten Steuerkurven ausgewählt wird.The control curve can also be defined as a function of further parameters. Thus, in the control device, the type of adhesive, the adhesive viscosity, the adhesive application temperature and / or one or more properties of the cover material can be used, either by manual input or by automatic detection by means of corresponding sensors, and a corresponding control curve defined thereafter or from a number of deposited Cams is selected.
Vorzugsweise weist die Steuerkurve einen degressiven Verlauf auf, mit einem minimalen Walzenabstand bei hohen Drehgeschwindigkeiten.Preferably, the control cam has a degressive course, with a minimum roll spacing at high rotational speeds.
Vorteilhaft ist, wenn zur Reinigung der Beleimeinrichtung ein größerer Abstand als der im Standby-Betrieb vorgesehene maximale Walzenabstand auswählbar ist. Dieser kann von der Steuereinrichtung über den Stellantrieb schnell angefahren werden, einhergehend mit weiteren für die Reinigung erforderlichen Maschineneinstellungen, sodass mit der Reinigung unverzüglich begonnen werden kann.It is advantageous if, for cleaning the gluing device, a greater distance than the maximum roller distance provided in standby mode can be selected. This can be approached quickly by the controller via the actuator, along with other machine settings required for cleaning so that cleaning can start immediately.
Eine bevorzugte Weiterausgestaltung der erfindungsgemäßen Beleimeinrichtung sieht vor, dass der Stellantrieb ein Verstellmotor mit Drehgeberrückführung ist und mit einer an dem jeweiligen Lager der Dosierwalze eingreifenden Spindel antriebsverbunden ist. Die beiden, den endseitigen Lagern der Dosierwalze zugeordneten Spindeln können mit einem einzigen Verstellmotor antriebsverbunden sein oder sie weisen jeweils separate Verstellmotore auf, die wiederum über die Steuervorrichtung miteinander verbunden sind.A preferred further embodiment of the invention Beleimeinrichtung provides that the actuator is an adjusting motor with encoder feedback and is drivingly connected to an engaging with the respective bearing of the metering spindle. The two spindles associated with the end bearings of the metering roller may be drive-connected with a single adjusting motor or they each have separate adjusting motors, which in turn are connected to one another via the control device.
Damit die Beleimeinrichtung keinen Schaden durch in den Spalt geratene Fremdkörper nimmt, können als Überlastsicherung die endseitigen Lager der Dosierwalze über entsprechend hoch vorgespannte Druckfedern gegen zugeordnete, von dem Stellantrieb verstellbaren Haltern abgefedert sein, mit jeweils einer einen maximalen Abstand zwischen Halter und Lager begrenzenden Zugstange.Thus, the gluing device takes no damage by fallen into the gap foreign body, can be cushioned as an overload protection the end bearing of the metering roller via correspondingly biased compression springs against associated adjustable by the actuator holders, each with a maximum distance between the holder and bearing limiting tie rod.
Die Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnung anhand eines Ausführungsbeispiels näher erläutert. Es zeigen
- Fig. 1
- in einer Seitenansicht eine Beleimeinrichtung zum vollflächigen Beleimen von an der Beleimeinrichtung vorbei geführten Bezugsnutzen in einer Buchdeckenmaschine;
- Fig. 2
- eine Draufsicht von der Beleimeinrichtung;
- Fig. 3
- ein Diagramm mit einer Steuerkurve.
- Fig. 1
- in a side view of a Beleimeinrichtung for full-surface gluing of passing on the Beleimeinrichtung passing Bezugsnutzen in a book cover machine;
- Fig. 2
- a plan view of the gluing device;
- Fig. 3
- a diagram with a control curve.
Die in den
Die Beleimeinrichtung 1 besteht im Wesentlichen aus der in gestellfesten Lagern 14 drehgelagerten, während des Betriebs im Wesentlichen synchron zum Nutzenzylinder 4 angetriebenen Auftragswalze 10 und einer dieser zugeordneten Dosierwalze 11, welche im Ausführungsbeispiel über Zahnräder 25, 26 von der Auftragswalze 10 in entgegengesetzter Drehrichtung mit angetrieben ist. Die Dosierwalze 11 kann aber auch stillstehen oder mit langsamer Geschwindigkeit entgegengesetzt zur Auftragswalze 10 angetrieben sein.The gluing device 1 consists essentially of the rotatably mounted in frame-fixed
Im Zwickel von Auftragswalze 10 und Dosierwalze 11 befindet sich der von einer Klebstofffördereinrichtung 13 gelieferte Klebstoff 12. Durch die Drehbewegung der Walzen 10, 11 wird Klebstoff durch den im Annäherungsbereich von Auftragswalze 10 und Dosierwalze 11 vorliegenden Spalt der Breite D (= Walzenabstand) herausgeführt und im Falle gleich schnell drehender Walzen 10, 11 annähernd gleich auf die beiden Walzen 10, 11 aufgeteilt.In the gusset of applicator roll 10 and
Die Dosierwalze 11 ist endseitig in verschiebbar geführten Lagern 15 drehgelagert. Diese sind hierzu in gestellfesten Führungen 19 aufgenommen. Als Überlastsicherung sind die Lager 15 über vorgespannte Tellerfedern 18 gegen zugeordnete Halter 16 abgefedert. Eine Zugstange 17 definiert einen maximalen Abstand zwischen Lager 15 und Halter 16. Die Vorspannung ist derart ausgelegt, dass der eingestellte Walzenabstand D während des regulären Betriebs konstant bleibt ohne aufgrund des im Annäherungsbereich der Walzen 10, 11 herrschenden Staudrucks einzufedern. Nur im Havariefall, wenn sich z.B. Fremdkörper im Klebstoff 12 befinden, weicht die Dosierwalze 11 aus.The
Die Verschiebung der Dosierwalze 11 und damit die Einstellung des Walzenabstands D erfolgt also über die Halter 16, welche von in gestellfesten Lagern 20 drehgelagerten Verstellspindeln 21 in entsprechende Positionen verfahrbar sind. In dem Ausführungsbeispiel sind die beiden Verstellspindeln 21 über Kegelradstufen 22 und eine Welle 23 mit einem Verstellmotor 24 verbunden. Alternativ könnte jeder Verstellspindel 21 ein eigener Verstellmotor 24.1 bzw. 24.2 zugeordnet sein, wodurch eine zur Auftragswalze 10 verschränkte Positionierung der Dosierwalze 11 ermöglicht werden könnte und der Walzenabstand D von der einen Seite zur anderen Seite zu- bzw. abnimmt.The displacement of the
Zur automatischen Verstellung des Walzenabstandes D ist eine Steuerung 30 vorgesehen, in der eine Steuerkurve 40 gespeichert ist, nach welcher der Verstellmotor 24 über die zugeordnete Motoransteuerung 31 und die Positionsrückführung des Drehgebers 24 a am Verstellmotor 24 die für den Walzenabstand D relevante Position der Halter 16 anfährt. Beim Einsatz von zwei Verstellmotoren 24.1 und 24.2 sind beide Verstellmotore 24.1 und 24.2 an der Steuerung 30 angeschlossen und hierdurch miteinander verbunden.For automatic adjustment of the roll spacing D, a
Wie aus
Der Verlauf der Steuerkurve 40 ist erfindungsgemäß über die Vorgabe wenigstens einer einer bestimmten Walzendrehgeschwindigkeit vWalze bzw. Taktleistung P zugeordneten Stellgröße 41 a bzw. 41 b definierbar. Im Ausführungsbeispiel ist der Verlauf der Steuerkurve 40 durch die Vorgabe einer ersten Stellgröße 41 a und einer zweiten Stellgröße 41 b vorgesehen, wobei ein minimaler Walzenabstands Dmin bei einer maximalen Taktleistung Pmax und ein maximaler Walzenabstand Dmax bei einer minimalen Taktleistung Pmin angegeben werden. Der Verlauf einer alternativen zweiten Steuerkurve 44 ist gestrichelt angegeben. Für den Standby-Betrieb, bei dem im Stillstand der Buchdeckenmaschine die Walzen 10, 11 weiter drehangetrieben sind, ist eine Walzendrehgeschwindigkeit vWalze und ein Walzenabstand Dmax entsprechend der minimalen Taktleistung Pmin vorgesehen.The course of the
Die Vorgabe besagter Stellgrößen 41 a, b kann über ein mit der Steuerung 30 verbundenes Bedienterminal 33 erfolgen, das über ein Display 34 den Walzenabstand D gemäß aktueller Stellgröße 43 anzeigt. Mittels eines Eingabefeldes 35 lassen sich neue Stellgrößen 41 a, b eingeben. Durch die Generierung entsprechender Wertepunkte wird dann eine neue Steuerkurve 40 gebildet, die durch die nun vorgegebenen Stellgrößen verläuft. Die Vorgabe muss nicht zwangsläufig für die minimale oder maximale Taktleistung erfolgen. So könnte auch bei der jeweils aktuellen Taktleistung ein neuer Wert für den Walzenabstand D vorgegeben werden, wobei die Steuerkurve 40 dann entsprechend parallelverschoben, gestreckt oder geneigt zur vorherigen Steuerkurve verläuft.The specification of said manipulated
Vorteilhaft ist hierfür ein Betriebswahlschalter 36 am Bedienterminal 33. In der Stellung Automatikbetrieb 36 a wird der Walzenabstand D gemäß aktuell hinterlegter Steuerkurve 40 bestimmt und vom Verstellmotor 24 automatisch angefahren. In der Stellung Manueller Betrieb 36 b kann über Plus/Minus-Tasten im Eingabefeld 35 eine inkrementelle Veränderung des aktuellen Walzenabstandes D vom Bediener vorgenommen werden. Wenn sich die Änderung als sinnvoll erwiesen hat, lässt sich der gefundene Walzenabstand D als neue Vorgabestellgröße über die Stellung Speichern 36 c per Teach-in abspeichern und die Steuerkurve 40 wird entsprechend abgeändert. Der Betriebswahlschalter 36 wird anschließend in die Stellung Automatikbetrieb 36 a zurückgedreht.Advantageously, this is an operation selector switch 36 on the control terminal 33. In the
In der Stellung Reinigungsmodus 36 d werden die Walzen 10, 11 auf einen für das Reinigen der Walzen 10, 11 vordefinierten weiten Abstand D auseinander gefahren. Im Diagramm aus
Der Verlauf der Steuerkurve 40 kann zusätzlich zur Abhängigkeit von der Walzendrehgeschwindigkeit vWalze noch in Abhängigkeit weiterer Parametern definiert sein. Beispielsweise können Steuerkurven 40 in Abhängigkeit des Klebstofftyps, der Klebstoffviskosität, der Klebstoffauftragstemperatur und/oder einer oder mehrerer Eigenschaften des Bezugsmaterials in der Steuerung 30 gespeichert sein, die entweder manuell über das Bedienterminal 33 abrufbar oder von der Steuerung 30 gemäß eingehender Sensorsignale 37 automatisch auswählbar sind.The course of the
Die erfindungsgemäße Beleimeinrichtung ermöglicht die schnelle Anpassung der Steuerkurve 40, wenn sich das Verhalten des Klebstoffs beim Austrag aus den beiden Walzen 10, 11, beim Benetzen des Bezugsnutzens 2 oder beim Verkleben der beiden Kleblinge Bezugsnutzen 2 und Deckelpappen 3 ändert, ohne dass hierzu aufwändige und teure Sensoren und Messeinrichtungen zum Einsatz kommen. Die Erfahrung des Bedieners, der meist schon visuell oder durch bloßes Ertasten des Klebstoffs auf der Auftragswalze 10 und/oder auf dem Bezugsnutzen 2 die richtige Einstellung erkennen kann, wird hier kombiniert mit einer einfachen und kostengünstigen Automatik für die Abstandsverstellung. Dem Bediener wird die Kontrolle des Klebstoffauftrags nicht genommen. Er gewährleistet mit seinem Fachwissen die qualitative Herstellung der Buchdecken. Die notwendigen Einstellungen werden mit der erfindungsgemäßen Beleimeinrichtung 1 aber deutlich leichter und schneller durchgeführt und eine einwandfreie Beleimung über den vollen Geschwindigkeitsbereich ist gewährleistet, ohne dass der Bediener einzugreifen hat. Zudem erhöht sich das Spektrum an zu verarbeitenden Klebstoffqualitäten.
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810024213 DE102008024213A1 (en) | 2008-05-19 | 2008-05-19 | glueing |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2123468A2 true EP2123468A2 (en) | 2009-11-25 |
EP2123468A3 EP2123468A3 (en) | 2014-02-12 |
EP2123468B1 EP2123468B1 (en) | 2015-08-19 |
Family
ID=41058668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09006373.6A Active EP2123468B1 (en) | 2008-05-19 | 2009-05-12 | Gluing device |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2123468B1 (en) |
DE (1) | DE102008024213A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429049C2 (en) | 1984-08-07 | 1988-09-01 | Buerkle Gmbh & Co Robert | |
DE10057599A1 (en) | 2000-11-21 | 2002-05-23 | Kolbus Gmbh & Co Kg | Device for manufacturing book binding covers has mutually independent drives for at least cover element transport arrangement, board transport arrangement, insertion/pressure arrangement |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6470294B1 (en) * | 1999-04-13 | 2002-10-22 | Qualitek-Vib, Inc. | System and method for the on-line measurement of glue application rate on a corrugator |
-
2008
- 2008-05-19 DE DE200810024213 patent/DE102008024213A1/en not_active Withdrawn
-
2009
- 2009-05-12 EP EP09006373.6A patent/EP2123468B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429049C2 (en) | 1984-08-07 | 1988-09-01 | Buerkle Gmbh & Co Robert | |
DE10057599A1 (en) | 2000-11-21 | 2002-05-23 | Kolbus Gmbh & Co Kg | Device for manufacturing book binding covers has mutually independent drives for at least cover element transport arrangement, board transport arrangement, insertion/pressure arrangement |
Also Published As
Publication number | Publication date |
---|---|
EP2123468A3 (en) | 2014-02-12 |
DE102008024213A1 (en) | 2009-11-26 |
EP2123468B1 (en) | 2015-08-19 |
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