EP0096832A2 - Transverse glueing device for fast moving webs - Google Patents

Abstract

The invention relates to a cross-gluing unit for coating very fast-moving webs that are brought together, collected and bound to versatile products. The adhesive is fed into a feed channel (8) which extends peripherally along a surface line of a rotating application cylinder (4) and from which radial outlet openings (18) in the form of at least one row of holes (7) extend outwards. The application cylinder (4) is wrapped in a jacket area by the web (2) to be coated. The circumferential speed of the cylinder (4) corresponds exactly to the web feed speed, the circumference of the cylinder (4) corresponding exactly to the desired distance between the cross-banding (17). The adhesive leakage caused by centrifugal force is influenced by throttling, mechanical closing (24, 25) of the outlet openings (18) and / or by pressure control.

Description

The invention relates to a cross-gluing unit for very fast-moving webs, in particular for the bonding of several webs in rotary printing presses. The term "very fast moving webs" is understood to mean those with a continuously variable feed speed of several hundred meters / minute, for example 300 to 500 m / min.

The invention is based on a known gluing device according to DE-PS 11 15 120, in which the adhesive is supplied from a storage container to the interior of a rotating application cylinder, on the circumference of which the web is tangent, and is applied to the web through outlet openings in the cylinder wall .

The Queranleimung fast running paper webs is to the Ge _- remained unresolved genwart, although this is a significant need in the printing industry exists. It is basically known to bind multi-page printed products in such a way that adhesive is applied to the individual web along the fold, which, after folding, causes adjacent pages to be glued in the fold area. In practice, this problem was solved by applying finally long adhesive strips that extend along the feed direction of the web (rationalization in the fatification of printed products, binder report No. 3/82, Industrie-Verlag). The application of adhesive strips of limited length requires complicated control of the application mechanism. Significant increases the machine speeds cannot be realized.

For technical printing and folding reasons, it is not possible with certain printing machines, so-called half-width machines, to apply the adhesive application to the web as cross-gluing, whereby the term web is understood to mean not only an endless but also a finite one, for example a sheet . Such cross-gluing is required, however, that it must be applied precisely in the fold area with minimal adhesive expenditure and should have a sharp contour area in the form of a narrow line. This condition was not achievable. It is theoretically possible to connect a rotating applicator bar to a gluing unit, the box taking off the adhesive from a rotating roller immersed in a glue tank and transferring it to the web. Quite apart from the fact that this does not create sharp contours Auftragobilder, the application fails this known principle to the required high _{web speeds,} because the adhesive due to centrifugal force tends already at lower web speeds, wegzuspritzen of the fountain roller or the Auftrageleiste.

The application device according to DE-AS 11 15 120 mentioned at the outset did not prove to be promising in practice because the adhesive dries in the outlet openings after short interruptions in work, rendering them unusable and thus preventing the correct application image from being achieved. The development of application technology for adhesives has followed other paths since this knowledge.

The invention has for its object to develop a cross-gluing unit for very fast moving webs or blanks, which is capable of regardless of the changing speeds position and contour-accurate gluing at specified locations without the risk of the adhesive splashing away. The solution to this problem according to the invention is that the web wraps around a portion of the jacket of the application cylinder, the extent of which corresponds to the desired distance of the cross-gluing or a whole multiple of this distance, that the outlet openings extend along rows of jacket lines of the application cylinder in rows of bores A plurality are formed and that an adhesive feed channel extends to the inside of the individual outlet openings and is connected to a stationary axial adhesive connection of the application cylinder.

The individual outlet opening is preferably designed as a bore (throttle nozzle) of such a diameter that the centrifugal force of the adhesive is only slightly greater than the opposing forces, even at high speeds of the application cylinder. It has proven to be advantageous if the outlet opening has a bore narrowing of about 2 to 4 mm in length with a diameter of about 0.3 mm behind an approximately 1 mm long bore outlet of approximately 0.8 mm in diameter.

The invention initially avoided applying the adhesive from the cavity of a rotating cylinder. This is because the larger the filling quantity of the cylinder, the larger the surface of the adhesive mass and the more easily the adhesive tends to form skin. Instead, the cylinder has more of a carrying function in the subject matter of the invention. This is because the adhesive is fed through a tube (adhesive supply channel) which extends peripherally of the application cylinder along a surface line to the outlet openings in the form of bores or throttle nozzles.

This significantly reduces the mass in rotation, increases the flow rate of the adhesive and accordingly prevents skin formation. Nevertheless, the adhesive application is based on the centrifugal force of the adhesive located in the outlet openings, which essentially counteracts the viscosity, the throttling effect (capillary effect) and the external pressure. It is now important to choose the cross-sections of the outlet openings so that the adhesive cannot spray out of the outlet openings even at high rotational speeds. Since the application cylinder is wrapped in a not inconsiderable part of its circumference by the web to be coated, the web has a covering effect in this area and prevents the adhesive from flowing out. There is only a kind of beading out of the adhesive from the outlet openings. Since the peripheral speed of the application cylinder is exactly the feed speed of the coating

Corresponds to the web, punctiform application pictures are formed on the web, which together form a row of transverse glue. However, as soon as the row of holes of the outlet openings moves away from the web partially wrapping around the application cylinder, there would theoretically be the possibility of spraying the adhesive out of the outlet openings until the row of holes is covered again by the web. However, this experience of uncovered movement of the row of holes does not lead to the adhesive being thrown off, based on the experience of practical testing of the subject matter of the invention. Rather, the capillary forces are so strong that they only allow the outlet openings to be filled up by the flowing adhesive. Even if an application cylinder designed according to the invention passes through a certain angle quickly without being covered, the adhesive is not thrown off. However, it has proven to be advantageous to cover the row of bores from the outside when the application cylinder is at a standstill during a work break to prevent the adhesive from drying out. For this reason, the application cylinder can, for example, be uncoupled from its drive and moved into a basic position in which the row of holes is accessible from the outside. When work is started again, the application cylinder must be returned to its correct working position and engaged with the drive. The outlet openings can be arranged individually, in groups or as a whole in an insert which is interchangeably connected to the application cylinder.

In the sense of the invention, there are various possibilities to improve the control of the adhesive application and to enable the transverse gluing unit to be used in a controlled manner for continuous operation. A preferred solution to this problem is that the outlet openings can be covered on the inside in a controlled manner by a closure element. This closure element opens the access to the capillary openings as soon as the row of holes is covered by the web to be coated. Accordingly, the closure takes place in good time before the web leaves the jacket area of the application cylinder again. The closure element expediently passes through the adhesive feed channel and is driven in an oscillating or rotary manner.

In one embodiment of the invention, the closure element is designed as a strip-shaped sealing lip that can be adjusted against the inside of the outlet openings and is arranged radially at the top on a control shaft that passes through the adhesive feed channel with play and is rotatably mounted on the application cylinder. According to the invention, both the adhesive feed channel and the control shaft can be arranged in an insert, for example in a hollow strip, which fits into a suitable recess in the opening support cylinder can be used.

A relatively simple construction lends itself to the oscillating control of the control shaft. Then sits on the control shaft with a roller or the like. Provided rocker arm, which thus rotates with the application cylinder, the roller of which is spring-loaded against a stationary cam arranged concentrically to the axis of the application cylinder. Expedient configurations of this arrangement result from subclaims 10 to 12.

In the rotary control of the control shaft, according to one embodiment of the invention, the control shaft is provided with a gearwheel which rolls directly or indirectly on a stationary gearwheel arranged concentrically to the axis of the application cylinder. In this drive, which operates in the manner of a planetary gear mechanism, the control shaft makes the same rotation as the application cylinder, the control shaft also being able to rotate in the opposite direction to the application cylinder. It is essential that the closure element is designed so that in the area where the row of holes is covered by the web to be coated, the outlet openings are connected to the feed channel and can release adhesive.

In extensive tests with the subject matter of the invention, it was surprisingly found that the flow rate of the adhesive through the outlet openings was surprisingly and in large areas linearly related to the rotational speed of the application cylinder. However, in order not to allow deviations from this linear relationship to have a negative effect, the invention provides in a further embodiment that the application cylinder rotates with one Number or consumption-dependent metering arrangement for changing the filling quantity of the adhesive feed channel is provided or connected. A wide variety of options are available according to the invention for designing such metering arrangements. It is thus possible, for example, to design the metering arrangement from a valve which separates the adhesive feed channel from its connection to the adhesive connection and in particular is arranged in a radial connecting line. This valve has the effect of temporarily separating the adhesive located in the adhesive feed channel and in the outlet openings before the adhesive flowing in, in order to reduce the centrifugal forces in this way. In this case, it is advisable to provide ventilation arrangements in the area of the feed channel in order to make it easier for the adhesive to flow out of the bores.

A further possibility for designing the metering arrangement consists in the arrangement of a throttle in the feed area of the adhesive, which can also be adjustable depending on the speed of its cross section.

Finally, the invention provides the possibility of providing a negative or positive pressure control for the adhesive to be conveyed into the adhesive feed channel as a metering arrangement. Basically, the intention is to increase or decrease the pressure in the outlet openings caused by the centrifugal force. It has even been found that it is not necessary to cover the outlet openings on the inside with such controls. On the other hand, when the outlet openings are covered on the inside, a narrowing of these outlet openings can be dispensed with.

• Fig. 1: eine schematische Seitenansicht eines Queranleimwerkes für die Ver^gebung von zwei endlosen Bahnen und
• Fig. 2: einen Teilquerschnitt in vergrößerter Darstellung durch eine als Drosseldüse ausgebildete Austrittsöffnung,
• Fig. 3: einen Teilquerschnitt in vergrößerter Darstellung durch einen im Auftragezylinder angeordneten Klebstoffzuführkanal,
• Fig. 4: einen Längsschnitt durch einen Auftragezylinder,
• Fig. 5: einen Querschnitt durch den Auftragezylinder entlang der Linie V - V gemäß Fig. 4,
• Fig. 6: eine Stirnansicht eines Auftragezylinders mit einem rotativen Steuerantrieb,
• Fig. 7 und 8: Teilquerschnitte durch einen Klebstoffzuführkanal gemäß Fig. 3 in zwei verschiedenen Stellungen und
• Fig. 9: einen Querschnitt durch einen Auftragezylinder mit einer Ventilsteuerung.

Details of the invention emerge from the drawing. In her the invention is shown schematically and for example. Show it:

• Fig. 1 is a schematic side view of a Queranleimwerkes for the MOVE Ver ^g of two endless tracks and
• 2: a partial cross section in an enlarged view through an outlet opening designed as a throttle nozzle,
• 3: a partial cross section in an enlarged view through an adhesive feed channel arranged in the application cylinder,
• 4: a longitudinal section through an application cylinder,
• 5: a cross section through the application cylinder along the line V - V according to FIG. 4,
• 6: an end view of an application cylinder with a rotary control drive,
• 7 and 8: partial cross-sections through an adhesive feed channel according to FIG. 3 in two different positions and
• 9 shows a cross section through an application cylinder with a valve control.

In the exemplary embodiment in FIG. 1, it is assumed that two endless webs 2, 14 are brought together and conveyed by a pair of pull rollers 1, the problem being that cross-gluing 17 is attached to a web 2 at predetermined intervals Merging both webs 2, 14 lead to their line-by-line gluing. If transversely extending folds are formed in the area of these gluing lines 17, it is possible to process the webs 2, 14 and further webs into multi-page bound products, for example newspapers, magazines, brochures, form sets and the like.

A rotating application cylinder 4 is used to apply the cross-gluing 17, the circumference of which corresponds exactly to the predetermined distance between the cross-gluing 17. This applies when the application cylinder 4 has a single row of holes 7 through which the adhesive emerges under the action of centrifugal force. However, it is also possible for the application cylinder 4 to contain two or more such rows of bores 7 which are at the same distance from one another. spell the scope of the application cylinder 4 is a whole multiple of the distance between the cross-banding 17th

The web 2 to be coated is guided with the aid of the deflection roller 3 in such a way that the application cylinder 4 is wrapped in the web 2 in a not inconsiderable part of its circumference. In the area of this wrapping, the row of holes 7 is accordingly covered by the web 2. The other web 14 is guided in the usual way over the guide rollers 15 and can be changed by means of the register roller 16 in such a way that a registration accuracy of certain points of the webs 2, 14 can be set. So that the peripheral speeds of the pull rollers 1 and the application cylinder 4 are constant, the application cylinder 4 is driven by the pull roller 1 via the gear 5 in connection with a correspondingly dimensioned driven wheel 6.

The adhesive to be applied is located in a stationary collecting container 12 and arrives via the adhesive line 11 to a stationary adhesive connection 10, from where the adhesive is supplied to a radial connecting channel 9 via an axial bore 30 in the cylinder shaft 28 (see FIG. 4). which opens into an adhesive feed channel 8, from which the row of holes 7 extends.

The centrifugal force of the adhesive is counteracted by various forces, one of the most important of which is the capillary force in the outlet openings of the row of holes 7. In the case of FIGS. 1 and 3, the outlet openings 18 are designed as simple bores with a diameter of approximately 0.8 mm without narrowing.

In the exemplary embodiment in FIG. 2, the individual outlet opening 18 is designed as a throttle nozzle which, starting from the adhesive feed channel 8, has a bore constriction 20 which widens again into a bore outlet 19. The adhesive feed channel 8 is located in an exchangeable insert 21, which is inserted in a corresponding recess in the application cylinder 4 and is supplied with adhesive via the radial connecting channel 9. It has proven to be advantageous to design the bore outlet 19 to be approximately 1 mm long and with a diameter of approximately 0.8 mm, whereas the bore constriction 20 can be, for example, 2 mm to 4 mm long and a diameter of only approximately 0.3 mm having. The constriction 20 counteracts the centrifugal force of the adhesive located in the constriction 20 when the application cylinder 4 rotates. In addition, the throttle nozzle is covered on the outside by the web 2. This means that the adhesive can only bubble out slowly. Even if the outlet opening 18 is not covered by the web 2, the rotation of the up leads carrying cylinder 4 does not cause the adhesive to be thrown off. It is only advisable to cover the outlet openings 18 from the outside during longer breaks in work. For this reason, the covering device 13 is provided in FIG. When work is interrupted, the application cylinder 4 is uncoupled from its drive 5, 6 and brought into a position in which the row of holes 7 is opposite the cover device 13. It is sufficient to prevent air from entering the outlet openings 18 from the outside.

The position of the cover device 13 can be changed due to the design. It can also be provided with a lifting or swiveling drive, not shown. The adhesive is preferably supplied from the collecting container 12 to the application cylinder 4 under pressure, so that if the cover 13 is disregarded, the adhesive could gradually exude. At the start of the gluing process, the application cylinder 4 is first brought back into its original position in order to bring about the registration accuracy of the cross-gluing 17 with respect to the position of the webs 2, 14.

In the exemplary embodiment in FIGS. 3 to 5, an embodiment of the cross-gluing unit according to the invention is now shown, FIG. 3 being an enlarged partial cross section of the application container. ters 4 along the line III - III. in Figure 4.

Thereafter, the connecting channel 9 opens into an adhesive supply channel 8, which extends along a surface line of the application cylinder 4 and, in the example of FIG. 3, is formed by a hollow insert 21, the hollow strip 22 of which is closed on the inside by a cover 23. This arrangement 22, 23 is firmly inserted into a corresponding recess in the application cylinder 4, but is interchangeable. A control shaft 24 extending longitudinally therein is arranged and rotatable in the adhesive feed channel 8 stored. This carries on its periphery a closure element 25 in the form of a strip-shaped sealing lip which is set against the inside of the outlet openings 18. It is advisable to provide the control shaft 24 with an adjustable bearing so that the required sealing effect is brought about. The sealing lip (closure element) 25 can also be guided in a radially movable manner on the control shaft 24 and pressed on with springs. Between the control shaft 24 and the corresponding bore of the feed channel 8 there is a play 26 through which the adhesive can pass from the feed channel 8 to the outlet openings 18 when the closure element 25 has opened the outlet openings 18 by rotating the control shafts 24.

The structural design of the application cylinder 4 is shown in the exemplary embodiment in FIG. Thereafter, a cylinder shaft 28 is rotatably supported in bearing plates 27 via bearings 52, which supports the jacket of the cylinder via flanges 29. In the cylinder shaft 28 there is an axial bore 30, from which the connecting channel 9 extends in the radial direction, which can be formed by a tube 41. The axial bore 30 opens into the fixed adhesive connection 10, specifically in its hollow shaft 53, which is mounted with the aid of the bearing 31 and is sealed via the seals 32. The hollow shaft 53 of the adhesive connection 10 is connected to the cylinder shaft 28. The screw connection 10 can easily be replaced by a screw connection, not shown.

4 shows the mounting of the control shaft 24 with the aid of the seal 34 and the bearings 33. The adhesive feed channel 8 is provided with an outlet connection 35, which is actuated for cleaning or emptying the application cylinder 4 or the adhesive feed channel 8.

A gear mechanism shown in FIG. 5 is provided for the oscillating control movement of the control shaft 24. On the control shaft 24 is a rocker arm 36, which is provided with a cam roller 39 and is loaded by a spring 40. This cam roller 39 rotates with the rocker arm 36 about the axis of the application cylinder 4 and rolls on a fixed cam 37. FIG. 4 shows that this cam plate 37 is connected in a fixed manner to the end shield 27 via a connecting sleeve 38. The cam disc 37 is designed so that the control shaft 24 is rotated to release the outlet openings 18 (see FIG. 3) as long as the row of holes 7 is covered by the web 2 surrounding the application cylinder 4.

In this case, instead of the protruding cam of the cam, a corresponding recess can also be provided, which makes it easier to block the outlet openings 18. In order to keep the rotating mass low, the application cylinder 4 is essentially hollow and, if necessary, stiffened in places by webs.

In the exemplary embodiment of FIGS. 3 to 5, the control shaft executes an oscillating rotary movement to open or close the outlet openings 18.

6, the control can also be brought about by a rotary movement of the control shaft 24. For this purpose, a gear 43 sits on the control shaft 24, which is connected via an idler gear 44 to a stationary drive pinion 45 and rolls on it. This drive pinion 45 can be connected to the end shield 27 in a manner similar to the cam disk 37. It is essential that the control shaft 24 executes one revolution with respect to the application cylinder 4 when the application cylinder 4 rotates. The direction of rotation of the control shaft 24 can can be chosen arbitrarily. The closure element 24 is then to be designed in such a way that the outlet openings 18 are only opened when the row of openings 7 is covered by the web 2.

FIGS. 7 and 8 show the locking and opening position of the control shaft 24 with its closure element 25. By changing the angle of rotation of the control shaft 24, the degree of opening at the outlet openings 18 of the row of holes 7 can be reduced or expanded, and the flow rate can thereby be restricted. For this purpose, adjustment mechanisms (not shown) can be provided on the adjusting drives of the control shaft 24.

The intensity of the adhesive outlet from the outlet openings 18 can also be influenced by further measures which are generally referred to in the invention as metering arrangements. For example, the functional relationship between centrifugal force and rotational speed of the application cylinder 4 can be influenced by exposing the adhesive to be supplied to a negative or positive pressure control. This can be done, for example, by changing the pressure conditions in the collecting container 12. Fig. 1 take place. However, it is also possible, in terms of printing technology, to act on the adhesive located in the adhesive line 11 or in the axial bore 30 as a function of the speed.

) In the exemplary embodiment in FIG. 9, a control is shown schematically, in which a valve 48 is present in the connecting channel 9, which prevents the flow of adhesive from the axial bore 30 to the adhesive supply channel 8. As a result, the fill level of the adhesive feed channel 8 can be regulated. The adhesive feed channel 8) should only be partially filled. With 51 the adhesive reservoir is designated. For example, depending on the level of the glue supply channel 8, the valve 48 is actuated so that a The adhesive flows into the feed channel 8. This can take place, for example, via a bypass line (not shown), the valve 48 being axially displaceable in the connecting channel 9.

Due to this partial filling of the adhesive feed channel 8 and the associated separation from the pressure of the adhesive flowing in, the centrifugal forces and thus also the outflow of adhesive are considerably reduced. In order to nevertheless enable an adequate application of adhesive, the valves 49, 50 are provided for releasing and sucking out air. If necessary, a compressed air overlay in the adhesive feed channel 8 can also ensure a more uniform application of adhesive over the entire speed range. Since there are numerous other options for pressure control, FIG. 9 shows only one way of constructively solving the problem described.

parts list

• 1 pair of pull rollers
• 2 lanes
• 3 deflection roller
• 4 application cylinders
• 5 gears
• 6 driven gear
• 7 row of holes
• 8 adhesive feed channel
• 9 connecting channel
• 10 adhesive connection
• 11 adhesive line
• 12 collecting containers
• 13 covering device
• 14 lane
• 15 guide roller
• 16 register roller
• 17 Cross banding
• 18 outlet opening
• 19 bore outlet
• 20 bore narrowing
• 21 use
• 22 Hollow bar
• 23 cover
• 24 control shaft
• 25 closure element
• 26 game
• 27 end shield
• 28 cylinder shaft
• 29 cylinder flange
• 30 axial bore
• 31 bearings
• 32 seal
• 33 bearings
• 34 seal
• 35 outlet connection
• 36 rocker arms
• 37 stationary cam
• 38 connecting sleeve
• 39 cam roller
• 40 feather
• 41 pipe
• ₄₂
• 43 gear
• 44 idler gear
• 45 stationary drive pinion
• 46 flattening
• 47 channel wall
• 48 valve
• 49 Air release valve
• 50 air intake valve
• 51 adhesive
• 52 bearings
• 53 hollow shaft
• 54
• 55
• 56

Claims (17)

1) Cross-gluing unit for very fast-moving webs, in particular for the bonding of several webs in rotary printing presses, in which the adhesive is fed from a storage container to the interior of a rotating application cylinder, on the periphery of which the web is tangent, and applied to the web through outlet openings in the cylinder wall is characterized in that the web (2) wraps around a portion of the jacket of the application cylinder (4), the circumference of which corresponds to the desired distance between the cross-glues (17) or a whole multiple of this distance, that the capillary openings (18) are along longitudinal jacket lines of the application cylinder (4) extending rows of bores (7) are formed in one or a plurality and that an adhesive supply channel (8) extends to the inside of the individual outlet openings (18) and is connected to a stationary axial adhesive connection (10) of the application cylinder (4 ) is connected. 2) transverse gluing unit according to claim 1, characterized in that the outlet opening (18) is designed as a bore (throttle nozzle) such a diameter that the centrifugal force of the adhesive is only slightly greater than the counteracting forces even at high speeds of the application cylinder (4). 3) transverse gluing unit according to claim 2, characterized in that the outlet opening (18) behind an approximately 1 mm long bore outlet (19) of approximately 0.8 mm in diameter Has bore constriction (20) of about 2 to 4 mm in length with a diameter of about 0.3 mm. 4) transverse gluing unit according to claim 1 or one of the following, da-5 characterized in that the outlet openings (18) are arranged individually, in groups or in total in an insert (21) which is interchangeably connected to the application cylinder (4). 105) cross-banding unit according to claim 1 or one of the following, characterized in that the outlet openings (18) can be covered inside controlled by a closure element (25). 156) Cross-banding unit according to claim 5, characterized in that the closure element (25) passes through the adhesive feed channel (8) and is driven in an oscillating or rotary manner. 7) transverse gluing unit according to claim 5 or 6, characterized in that the closure element (25) as a strip-shaped, against the inside of the capillary openings (18) adjustable, optionally resiliently pressed sealing lip is formed and radially projecting from an adhesive feed channel (8) with play ( 26) is arranged through the control shaft (24) which is rotatably mounted on the application cylinder (4). 8) transverse gluing unit according to claim 5 or following, characterized in that the adhesive feed channel (8) with the control shaft (24) are arranged in a hollow insert (21) 30 which can be inserted into a suitable recess of the application cylinder (4). 9) transverse gluing unit according to claim 5 or one of the following, characterized in that on the control shaft (24) with a roller (39) or the like. Provided rocker arm (36) sits, the roller (39) against one concentric to the axis of the application cylinder (4) arranged stationary cam (37) is spring-loaded. 0) cross-gluing unit according to claim 5 or one of the following, characterized in that the adhesive supply channel (8) connects on one side to the control shaft (24). 11) transverse gluing unit according to claim 5 or one of the following, characterized in that the control shaft (24) in the adhesive feed channel (8) is arranged radially adjustable. 12) transverse gluing unit according to claim 10, characterized in that the adjustment angle of the control shaft (24) with its closure element (25) for changing the degree of opening of the outlet openings (18) of the row of holes (7) is adjustable. 13) transverse gluing unit according to one of claims 5 to 8, characterized in that the control shaft (24) is provided with a gear (43) which is arranged indirectly or directly on a stationary gear (45) arranged concentrically to the axis of the application cylinder (4) passes on. 14) cross-gluing unit according to claim 1 or one of the following, characterized in that the application cylinder (4) is provided or connected with a speed-dependent metering arrangement for changing the filling quantity of the adhesive feed channel (8). 15) Cross-banding unit according to Claim 14, characterized in that the metering arrangement consists of a valve (48) which separates the adhesive feed channel (8) from its connection to the adhesive connection (10), in particular in a radial connecting line (9). 16) transverse gluing unit according to claim 14, characterized in that the metering arrangement consists of a throttle. 17) transverse gluing unit according to claim 14, characterized in that the metering arrangement consists of a negative or positive pressure control for the adhesive to be conveyed into the adhesive feed channel.

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