DE69911812T2 - ADHESIVE APPLICATION DEVICE AND METHOD - Google Patents

Abstract

An apparatus for use with a rotating glue roll 24 for applying glue to a sheet of material, preferably to the flute tips of a single-faced sheet of corrugated paper board, comprises an elongate frame 32 and an elongate rotary device 44, positioned across the direction of movement (A) of the sheet over the glue roll 24. Contact means 31, in the form of shoes 34, are pivotally mounted on the frame 32 which urge the sheet into contact with the glue roll 24. An elongate rotary device 44 comprising a shaft 46 and wheels 45 is mounted on the frame 32 substantially parallel to the contact means 31 and spaced relatively upstream along the direction of movement (A) of the sheet. The shaft 46 and wheels 45 bear against the sheet for tensioning the sheet before it reaches the glue roll 24. The position of the rotary device 44 may be adjusted relative to the frame 32 so as to vary the amount of sheet in contact with the glue roll 24 then passing over the glue roll 24; this adjustment may be performed by a positioning device 51 utilising a pneumatic piston and cylinder drive means (fig 7). Also disclosed is a method of applying glue to the flute tips of a single faced sheet of corrugated paper board using the above described apparatus.

Description

The present invention relates on a device for use with a rotatable roll of adhesive for applying adhesive to a sheet of material, and to a process for applying adhesive. The invention relates specifically, but not exclusively, on a device for applying adhesive to the shaft tips of a one-sided Corrugated web before the one-sided web with a continuous second Ceiling sheet is combined so that it is the other side of the corrugated Web facing, and to a method of such manufacture.

Corrugated cardboard traditionally consists of two opposite Ceiling sheets or liners and an intermediate sheet, which is corrugated or is corrugated, the three layers being attached to each other by adhesive are. The manufacturing process involves corrugating a corrugated one Train; Glue this to a first cover sheet; and then gluing one second cover sheet to the one-sided cardboard already produced. Sometimes are comprised of two or more corrugated layers, with ceiling panels are enforced.

At the step of gluing the second Ceiling sheet or liners on the one-sided sheet brings a gluing machine Apply glue to the corrugated tips with a rotating glue application roller. The adhesive application roller rotates at about the speed the one - sided web, during the lower section of the rotating roll of adhesive from a suitable container receives. Glue is thus attached to the rotating roll of glue transfer the corrugated tips of the one-sided web. To ensure, that the corrugated tips really touch the roll of adhesive, so that glue is applied to all corrugated tips of the one-sided web pressure on the back or front of the one-sided Track exercised become. It is known to use a rotating pressure roller the opposite the adhesive roller is arranged to make contact between the to ensure corrugated tips of the one-sided web and the adhesive roll. Unfortunately, the known opposite pressure roller can often a crush of the corrugated tips if the one-sided web on the tangential point between the pressure roller and the adhesive roller is clamped. It is also known to use an air bearing instead the pressure roller to try to crush the fluted tips and other restrictions associated with the overcome the rotating pressure roller.

US-A-5,129,980 (Sissons) and US-A-5,248,362 (Sissons) disclose a contact bar for sliding contact of the liner of a one-sided corrugated corrugated sheet for pressing the corrugated tips of the web against a rotating roll of adhesive without crushing the corrugated tips. The contact bar includes one elongated Framework that opposite and spaced from the rotating roll of adhesive is. A number of shoes are pivotally connected to the frame and hang of this and define a predetermined gap from the outer surface of the spinning roll of adhesive.

Although this arrangement is a considerable improvement across from the previous form of a contact device, that of the opposite pressure roller of the prior art, there is still a need for improvement the arrangement to tension the web before contact with the adhesive roll ensure and allow adjustment of the area of the web, which comes into contact with the roll of adhesive as it passes over the Adhesive roll arrives.

FR-A-1455170 (Martin) discloses one Device for applying adhesive to corrugated cardboard through an application cylinder that rotates in a container with a printing cylinder that forces the corrugated cardboard against the application cylinder. A separate controllable cylinder that is above the impression cylinder and application cylinder is arranged at a distance, pushes against the cardboard on the same side as the impression cylinder. The controllable Cylinder can move during of operation of the device move to the contact sheet or overlay sheet the cardboard with the application cylinder to vary during the Adhesive is applied.

GB-A-925036 discloses an apparatus for Applying adhesive to corrugated cardboard component parts and in particular to a device for applying an adhesive of the corrugated cardboard on one side of corrugated cardboard Apply a second side when making a double sided corrugated cardboard. A device is provided for application of glue on a material web with an adhesive roller for application from glue to a web of material that runs over the glue roll; one elongated Framework that over the direction of movement of the web over the Adhesive roll is arranged; a contact device connected to the Frame is arranged to keep the web in contact with the adhesive roll to force and an elongated rotatable device on the frame substantially parallel to the elongated Frame attached and upstream of this relative to the direction of movement the web is spaced, the elongated rotatable assembly so is arranged that it presses against the web to tension the web before it gets to the adhesive roll. In the embodiment shown there is the contact device for forcing the web into contact with the roll of glue from a weight roll over the roll of glue. The The purpose of this teaching is to ensure that the clamping pressure generated by the Exercising role is not affected by variations in the thickness of the cardboard.

An object of the present invention is at least in preferred embodiments One of them is to provide an improved apparatus and method that offers improved performance in applying adhesive to a web of material.

According to the present invention a device is provided for applying adhesive a web of material, the device comprising: an adhesive roll (Adhesive roll) for applying adhesive to a material web, the above the roll of glue is running; an elongated Frame that is arranged across the direction of movement of the web over the adhesive roller is; a contact device attached to the frame, to force the web into contact with the adhesive roll; and a elongated, rotatable device that is substantially parallel to the frame to the elongated Frame is attached and upstream of this relative to the direction of movement the web is spaced with the elongated rotatable device is arranged so that it is on the web to tension the web before it runs to the adhesive roll, bears; characterized in that the elongated rotatable device is arranged so that it is on the same side as the web the contact device is present.

The invention has particular application where the device is designed for the production of corrugated cardboard, wherein the device comprises: a single-sided assembly for feeding one continuous single-sided corrugated sheet, which is a corrugated sheet and has a first cover sheet on one side of the corrugated sheet; and a gluing machine incorporating the roll of adhesive thus formed is that they glue on the fluted tips of the one-sided Web, for subsequent combination with a continuous second cover sheet so that the other side of the corrugated Web is facing.

In a particularly preferred form may the device include a positioning device that is arranged on the frame to the position of the rotatable device relative to the elongated Frame to adjust the extent of the path that passes over the Glue roll in contact with the glue roll is to be predetermined. In a preferred form, the positioning device comprises a Means for relatively moving the axis of the rotatable device to the frame in a direction transverse to the direction in which the rotatable device of the elongated Frame is spaced.

The use of a positioning device, that embodies the invention, allows the variation in length the sheet of the web that is in contact with the roll of glue, when the web moves around the adhesive roll.

The positioning device may suitably a support for the rotatable device at each end of the rotatable device have, which is movably mounted on the frame, and a drive device, which is coupled between the frame and the support to make the support relative to move to the frame. The drive device likes a pneumatic one Have piston and cylinder arrangement. In a preferred form includes the positioning device at each end of the rotatable device an adjustable stop, which is mounted on the frame to the operating position of the support to determine.

In a particularly preferred form the rotatable device may have a series of rollers that move over the elongated rotatable device are spaced apart. The term role includes an elongated Roll with a width that is larger than their radius and also includes a relatively narrow roll, which forms a wheel with a width that is smaller than its radius. Preferably, the rollers are independently rotatable on an axis attached that are across the elongated rotatable device and suitably like one Device for varying the distance of the rolls across the elongated rotatable arrangement may be provided.

According to another particularly preferred feature of the invention likes the contact device Have row of shoes side by side across the elongated Contact device are arranged, for. B. generally as in the above U.S. Patent 5,248,362. With such an arrangement each shoe has a contact section for contacting the web, and a pivot portion pivotally connected to the frame is, the contact portion of the pivot portion in one is spaced in the first direction and the rotatable device of the contact device is generally opposite in a second direction is spaced from the first direction.

It is clear that if the characteristics of the invention here in relation to a device according to the invention these features are also described in relation to a method according to the invention and vice versa.

GB-A-925 036 is a process provided for applying an adhesive to a material web, comprehensive: leadership a material web over a rotating adhesive roll; Forcing the web into contact with the Roll of glue while this about the Adhesive roll is running, by a contact device attached to an elongated frame, which is arranged across the direction of movement of the web over the adhesive roller is; and tensioning the web by an elongated rotatable device, the on the elongated Frame arranged substantially parallel to the elongated frame is upstream from this is spaced relative to the direction of movement of the web, the elongated rotatable device is arranged so that it is against the web suppressed, before it gets to the adhesive roll.

Such a method is according to the invention ren characterized in that the elongated rotatable device presses against the web on the same side as the contact means.

An embodiment of the invention will now described by way of example with reference to the accompanying drawing.

1 Fig. 3 is a perspective side view of a first portion of a known corrugated cardboard manufacturing apparatus showing two single-sided assemblies;

2 Fig. 3 is a perspective side view of a second portion of the known manufacturing device showing a preheater and a gluing machine;

3 Fig. 3 is a diagrammatic side view of a third section of the known manufacturing device, showing a heating section;

4 is a side cut, which is a known contact rod, which in 2 is shown diagrammatically, shows in more detail;

5 is a perspective perspective view from above of a device according to the invention for use with the rotatable adhesive roll of the known, in 2 and 4 shown machine, the device comprising an elongated rotatable device for tensioning a web that runs over the adhesive roll;

5a FIG. 10 is a diagrammatic top view of a wear washer for use with the device of FIG 5 ;

6 is a perspective side view of the tensioner of FIG 5 showing their relationship with other components of the manufacturing device;

7 shows a perspective end view, partly in section, along the direction of movement of the web, the tensioning device of 5 and 6 ; and

8a . 8b and 8c show the clamping device of 6 , the position of the tensioner varying to vary the amount of web that is in contact with the adhesive roll.

First, the entire process of making corrugated cardboard in a known manner is briefly related to 1 to 3 described. A more complete description of the method is given in our co-pending patent application GB-A-2,321,652. The process usually begins with a one-sided paper web called a ceiling web or liner. A corrugated paper web is applied to this cover sheet by means of adhesive, whereby a one-sided sheet of corrugated cardboard is formed. A second opposing cover sheet is then applied to the corrugated tips of the one-sided corrugated sheet to form the double-sided corrugated cardboard.

In 1 supplies a source 12 a first cover sheet or a liner 13 and a source 9 a corrugated sheet 10 the liner to be combined 13 and the corrugated sheet 10 into a machine 14 that are the steps of corrugating the corrugated web 10 causes a corrugated web 15 to form and this with the liner 13 to glue. The machine 14 is called one-sided and creates a one-sided web of corrugated cardboard at its exit 16 holding a conveyor belt 17 is fed. These components are usually known as a "B" assembly. 1 also shows a second one-sided assembly 14 ' , which is commonly known as a "C" assembly, for creating a similar one-way web of corrugated cardboard 16 ' that a second conveyor belt 17 ' is fed. During the following description, only the first "B" assembly and the product thereof will be described in detail in the subsequent manufacturing steps.

The second "C" single-sided assembly is similar Operated in a manner and corresponding components are by appropriate Reference numerals. In some arrangements, the single-sided paper web can be combined from the first and second one-sided assemblies for simplification however, this is not described in the present embodiment because such doubling is not necessary for an understanding of the present invention. The combination of the "B" and "C" paper web is optional in normal manufacturing. With a lighter cardboard, the "C" assembly will not operated. The purpose of having the "B" assembly and "C" assembly is different strengths for to provide the finished corrugated cardboard.

At the in 1 case shown is the single-sided assembly 16 made from a liner or ceiling membrane and a corrugated membrane. In 1 is the source 12 shown with two feed rollers and the same is for the source 9 shown. One role is used in each source. When a roll runs out, the second roll is spliced / cut to provide a continuous web. For the one-sided assembly 14 becomes the corrugated sheet 10 led into the nip of the heated corrugated rollers (not shown). A reservoir for corn-based starch applies adhesive to the top of the shafts of newly formed corrugated paper that lines with the liner 13 is combined, and the different sheets are glued together by the adhesive. The newly formed one-sided paper web 16 is then sent to the overhead conveyor 17 passed from where to one in 2 Preheating and adhesive section shown.

In 2 reaches the one-sided paper web 16 to a triplex preheater 18 , from there to a duplex gluing machine 19 and from there to one in 3 shown heating section. The triplex preheater 18 has three drums 20 and 20 ' , and 21 , The one-sided paper web 16 is going around the bottom of the drum 20 passed around and preheated before going to the gluing machine 19 arrives. A second cover sheet or liner arrives in a similar manner 22 from a source (not shown) of a continuous liner web into the preheater 18 and around the Untersei te of the drum 21 around and from there to the gluing machine 19 , (If necessary, the second one-sided paper web arrives 16 ' similarly around the drum 20 ' around.) At the gluing machine 19 becomes a reservoir of glue 23 through an adhesive roll 24 to the one-sided paper web 16 applied. The second liner or the roofing membrane 22 only gets through the bottom of the gluing machine 19 , without being glued, and is then attached to the one-sided paper web 16 added in the heating section of the double-sided assembly, which is related to 3 is described. In the gluing machine 19 becomes the web 16 against the adhesive roll 24 through a contact device 31 forced, which can be any of the known contact devices, but is preferably a sliding contact device, as described in said patent US-A-5,248,362.

In 3 is the first part of an arrangement known as a double-sided assembly 25 shown, the part of the heating section 30 with a main frame 32 is. (The second train section of the double-sided assembly is not shown, but is fully disclosed in our co-pending patent application GB-A-2,321,652). With the double-sided assembly 25 takes a roll arranged opposite a pressure plate (not shown) 26 between the two the one-sided corrugated cardboard web 16 and the second cover sheet 22 on. The railways 16 and 22 are squeezed together and glued through the glue, which is on the tips of the waves of the web 16 by means of the adhesive roller 24 was applied. The railways 16 and 22 are combined to form a double-sided corrugated cardboard 27 to form, which is then through the heating section 30 the double-sided assembly 25 reached, in this example from 18 thermostats 28 consists of a support frame 29 are mounted. The double-sided assembly 25 includes a series of steam heated tables 34 over which the bottom cover 22 and the one-sided paper web 16 reach. The heat at approx. 180 ° gels the adhesive and creates a bond between the one-sided paper web 16 with the lower cover sheet 22 combines. The paper web is transferred to a pull section of the device.

4 shows the contact device in more detail 31 of 2 , The contact device 31 consists of a contact rod with an elongated frame 32 that is across the paper web 16 extends, which moves in the direction indicated at A, the frame 32 is basically formed by a rectangular tube. As described in the above-mentioned US-A-5,248,362, the frame extends 32 essentially across the full width of the rotating adhesive roll 24 , A series of contact shoes arranged side by side 33 can be swiveled with the frame 32 connected and hang down from this. A small gap remains between the neighboring shoes 33 , Each of the contact shoes 33 includes a contact section 34 and a pivoting section 35 by the pivot pin 36 with a holder 37 of the frame 32 connected is. The contact area of the contact section 34 preferably has a concave shape that conforms to the curvature of the outer surface of the adhesive roll 24 approaches.

Every shoe 33 has a biasing device, such as a compressed coil spring 38 to the contact section 34 in one direction from the frame 32 away to the one-sided web 16 to force. The pressure exerted by the shoe contact surface can be adjusted by the spring 38 receives a desired spring force. An adjustment device may be provided to a predetermined gap between the surface of the adhesive roll 24 and the contact area of the contact portion 34 adjust. The adjustment device includes an adjustment bolt 40 and a mother 41 made with an angle bracket 42 attached to the holder 37 is attached. The end of the adjustment bolt 40 presses against the surface of each shoe 35 at the end of it opposite the compressed coil spring 38 , Thus, the passage of the one-sided path causes 16 between the adhesive roll 24 and the shoe contact surface deflection of the springs 38 , causing a return pressure on the one-sided web 16 through the shoe contact sections 34 is exercised. The space can be adjusted to accommodate slightly thinner or thicker one-sided webs. The setting of the distance between the adhesive roller and the contact shoe can typically be 1.0 mm.

When using the known contact rod shown in 4 , the area of the web 16 that have a bow of adhesive roll 24 touched by the position of a separate guide roller 43 in the gluing machine 19 along with the position of the front roller 26 in the double-sided assembly 25 certainly. Moving the area in contact with the adhesive roller 24 the train 16 is therefore difficult to accomplish and tension the web 16 before touching the roll of adhesive 24 is also difficult to set.

In relation to 5 to 8c the improvement of the invention in the known device described with reference to the previous figures will now be described. In relation to 5 is a jig 48 provided with an elongated rotatable device 44 that on the frame 32 substantially parallel to and upstream from the elongate frame relative to the direction of travel of the web 16 is spaced. The rotating device 44 is arranged so that it is against the web 16 is applied to tension the web before it goes to the adhesive roll 24 arrives. The rotating device 44 consists of a series of wheels 45 that are across the rotatable device 44 are spaced. The wheels 45 can be rotated independently on one axis 46 mounted for rotation in the direction indicated by arrow B. The direction of rotation of the adhesive roller is in 5 indicated at C and the direction of movement of the path is indicated by arrow A.

6 shows the general arrangement of the contact rod 31 and the jig 48 in the gluing machine 19 , The leading role 43 that previously in 4 was shown is shown in the gluing machine and a corresponding guide roller 49 is for the second cover sheet 22 provided by the lower part of the gluing machine 19 comes along with another role 50 , The elongated rotatable device 44 is from the frame 32 spaced by attaching two mounting plates to each end 60 which is mounted by the frame 32 backwards relative to the direction of movement of the web 16 protrude.

7 shows in detail a positioning device 51 who are also in 5 and 6 for varying the position of the rotatable device 44 relative to the elongated frame 32 to the extent of the web 16 to vary, which is in contact with the adhesive roller when it runs over the adhesive roller. The positioning device 51 includes at each end of the axis 46 a drive device 52 that between the frame 32 and an axle support 47 is coupled, in which the axis is fixed. The drive device can be a pneumatic arrangement of pistons 53 and cylinder 54 exhibit.

As especially in 5 and 7 each end of the axis is shown 46 over the axle support 47 through a slit 55 in a back plate 56 and rests in its lowest position on an angular limit stop 57 , Operation of the drive device 52 allows the bearing support to be raised and lowered 47 , guided by the distal end of the axis 46 which is in the slot 55 moved up and down.

As in 7 each wheel is shown 45 at a warehouse 58 mounted, which on the axis 46 is fixed by wheel bushings that are fixed to the axle 46 are mounted. So the individual wheels 45 independently on the axis 46 rotate. The positions of the wheels 45 across the rotatable device can by means of approaches 59 can be set. Each paragraph can be on the axis 46 be fixed by grub screws (not shown). The wheels 45 can e.g. B. made of urethane with a Shure hardness of 90.

As in 8a to 8c shown is the axis 46 relative to the elongated frame 32 by operating the piston and cylinder arrangement of the drive device 52 be raised and lowered. In 8a is the axis 46 shown in a relatively raised position with the piston 53 has extended to a quarter of its stroke. In 8b is the axis 46 so in a lower position relative to the frame 32 arranged, the piston 53 is extended to half of its stroke. In 8c is the axis 46 in an even lower position relative to the frame 32 , the shaft 53 is extended to three quarters of its stroke. If the rotatable device 44 in the position of 8c is the web 16 stretched to a greater extent than at the position of 8a , Likewise wraps around the rotatable device 44 in position from 8c the train 16 a larger sheet of the adhesive roll 24 than in the case of 8a , Thus, movement of the rotatable jig 44 achieve a variation in tension on the web 16 is exerted, and also a variation in the area of the web that comes into contact with the roll of adhesive.

Given the overall operation of the contact rod, the frame is 32 mounted on two arms (not shown), one on each side of the adhesive roll, and these arms are movable under pneumatic, electrical or hydraulic control. When the machine is stopped, the controls lift the contact bar off the adhesive roller. When the machine is started, the controls lower the contact bar to a position a predetermined distance from the adhesive applicator roll. Because the jig 48 by the rotatable device 44 is provided on the elongated frame 32 the contact rod is mounted, the entire clamping unit 48 with the contact rod raised and lowered.

The operation of the tensioning device offers two advantages. First, the tensioner is arranged so that it tensions the one-sided paper web before applying the adhesive to the tips of the corrugations of this web. Second, the tensioner is arranged to predetermine the amount of one-sided web that contacts the adhesive applicator roll. This can be done by adjusting the stroke of the cylinders through mechanical limit stops. In 8a . 8b and 8c is shown that the mechanical end stop caused by the angle end stop 57 is provided, can be set to one of the three levels and by bolts 63 is attached, optionally in holes 64 in the end plate 56 can be arranged.

The task of the angular end stop 57 consists of the stroke of the cylinder rod and consequently the movement of the axis 46 and the wheels 45 to limit. By adjusting the position of the angle stop, it is possible to precisely determine the extent of the contact of the paper web with the adhesive application roller. It has been found that, in the absence of the rotatable device of the present invention, there are a number of variables in the positioning of the components and the line or path that the paper web follows through the machine. It has been shown that the angle of the paper entering the contact rod varies from machine to machine. Likewise, the height of the adhesive rolls varies in each system relative to the height of the first steam chamber in the heating section 30 , which creates connection problems ben. Likewise, as in 2 is shown in the gluing machine 19 the top adhesive application roll 24 ' a clearly different angle for the paper leaving the unit compared to the lower adhesive applicator roll 24 ,

For these reasons, the positioning device in the exemplary embodiment shown has three positions for the angular end stop, although more or fewer positions may be provided. With the use of the positioning device 51 it is possible to precisely determine the amount of contact between the paper and the adhesive application roll. By predetermining the same entry angle of the paper web, it is possible to standardize the paper line that leaves the surface of the adhesive roll. The rotatable jig along with the positioning device creates a paper line or path which provides a surface contact area selected by the operator. This is particularly important if e.g. B. three adhesive application rollers can be used in a gluing machine.

The pneumatic cylinders in the embodiment shown have a dual function. When the machine is stopped, the contact bar is lifted away from the adhesive applicator roll. The rotatable clamping device also rises under the force of the two pneumatic cylinders of the positioning device 51 , This facilitates the operator's access to the paper web 16 between the adhesive application roll 24 and the contact rod 31 introduce. When the machine is started, the contact bar is first lowered into its working position and then the rotatable tensioning device is lowered into its working position in order to tension the paper and to obtain the correct paper line. Movement of the rotatable jig is achieved by operating a separate pneumatic manually operated valve with settings for lifting and lowering. If the rotatable tension had to be kept permanently in its operating position, ie if the pneumatic cylinders were kept in their lower position, then when the contact rod was lowered into its working position, the paper web would 16 probably tear. Likewise, if the pneumatic cylinders were not raised independently of the contact rod, the operator would not only have difficulty manually feeding the paper (which is the case with all machines), but cleaning the machine if necessary would also be difficult.

Regarding the wheels 45 it is important in the embodiment shown that they are soft to prevent marking and pressing of the paper. Urethane is a preferred material for manufacturing. However, as with any material in contact with paper, the material of the wheels will wear out. With increasing wear, the effectiveness of the rotatable tensioner deteriorates. The use of a non-wearing material is not suitable. Steel would be e.g. B. too heavy and aluminum too expensive as a consumer good. To overcome these difficulties, is preferably in the mounting arrangement between the contact rod 31 and the rotatable device 44 a washer device is provided, which can be removed when worn. Such as B. in 5 . 5a . 6 and 8a to 8c shown, can be between the mounting plates 60 and the frame 32 a wear washer 66 be provided at each end of the contact rod. As in 5a has the wear washer 66 openings 67 who have a fit around bolts 66 allow around which the mounting plates 60 on the frame 32 to back up.

The function of the washer is as follows. If the wheels 44 are worn out z. B. by 8 mm, the washers 66 be removed. The angle stop can then be lowered to its lower position and the entry angle and paper line can be kept in their original setting. This gives the user of the entire paper making machine time to get the wheels back for replacement. When the new wheels are installed, the washers are replaced in the unit. The thickness of the washer may e.g. B. 10 mm.

Claims (17)

Device for applying adhesive to a material web comprising: an adhesive roll ( 24 ) for applying adhesive to a material web ( 16 ) that runs over the adhesive roller; an elongated frame ( 32 ), which is arranged transversely to the direction of movement of the web over the adhesive roller; a contact device ( 31 ) attached to the frame to force the web into contact with the adhesive roll; and an elongated rotatable device ( 44 ) attached to the frame substantially parallel to and spaced upstream from the elongate frame relative to the direction of travel of the web, the elongate rotatable device ( 44 ) is arranged to press against the web to tension the web before it runs to the adhesive roll; characterized in that the elongated rotatable device ( 44 ) is arranged so that it is against the web ( 16 ) on the same side as the contact device ( 31 ) presses. Apparatus according to claim 1, which is designed for the production of corrugated cardboard, the apparatus comprising: a one-sided assembly ( 14 ) for feeding a continuous one-sided corrugated cardboard web ( 16 ) which is a corrugated sheet ( 15 ) and a first cover sheet on one side of the corrugated sheet; and one the adhesive roll ( 24 ) including gluing machine ( 19 ), which is designed so that it glue on the corrugated tips of the one-sided web ( 16 ) for subsequent combination with a continuous second cover sheet ( 22 ) so that it faces the other side of the corrugated sheet. Device according to claim 1 or 2 with a positioning device ( 1 ) attached to the frame ( 32 ) is arranged to the position of the rotatable device ( 44 ) relative to the elongated frame ( 32 ) to adjust the extent of the web ( 16 ) that comes into contact with the adhesive roller when it passes over the adhesive roller ( 24 ) is to be predetermined. Apparatus according to claim 3, wherein the positioning device ( 51 ) An institution ( 52 . 47 ) for moving the axis of the rotatable device ( 44 ) relative to the frame ( 32 ) in a direction transverse to the direction in which the rotatable device is spaced from the elongated frame. Apparatus according to claim 3 or 4, wherein the positioning device ( 51 ) at each end of the rotatable device ( 44 ) a prop ( 47 ) for the rotatable device that is movable on the frame ( 32 ) is arranged, as well as a drive device ( 52 ) between the frame ( 22 ) and the prop ( 47 ) is coupled to move the support relative to the frame. Apparatus according to claim 5, wherein the drive device ( 52 ) a pneumatic piston ( 53 ) and cylinder ( 54 ) Arrangement. Apparatus according to claim 5 or 6, wherein the positioning device ( 51 ) at each end of the rotatable device ( 44 ) an adjustable stop ( 57 ) on the frame ( 32 ) is mounted to the operating position of the support ( 47 ) to determine. Device according to one of the preceding claims, wherein the rotatable device ( 44 ) a set of roles ( 45 ) which are spaced across the elongated rotatable device. Apparatus according to claim 8, wherein the rollers ( 45 ) independently rotatable on one axis ( 46 ) mounted across the elongated rotatable device ( 44 ) extends. Device according to claim 8 or 9, with an independent bearing ( 58 ) for each role ( 45 ), each bearing being movable along the axis, and means for securing each bearing on the axis at a selected position so that the spacing of the rollers can be varied. Device according to one of the preceding claims, wherein the contact device ( 31 ) a range of shoes ( 33 ), which are arranged side by side across the elongated contact device. The device of claim 11, wherein each shoe ( 33 ) a contact section ( 34 ) for contact with the train ( 16 ) and a swivel section ( 35 ) which is pivotable with the frame ( 32 ) is connected, the contact section ( 34 ) from the swivel section ( 35 ) is spaced in a first direction and the rotatable device ( 44 ) from the contact device ( 31 ) is spaced in a second direction that is generally opposite to the first direction. A method for applying adhesive to a material web, comprising: guiding a material web ( 16 ) via a rotating roll of adhesive ( 24 ); Forcing the web into contact with the adhesive roll while it is running over the adhesive roll by means of a contact device ( 31 ), which is attached to an elongated frame, which is arranged transversely to the direction of movement of the web over the adhesive roller; and tensioning the web by an elongated rotatable device ( 44 ) mounted on the elongate frame substantially parallel to and spaced upstream from the elongate frame relative to the direction of travel of the web, the elongate rotatable device being arranged to press against the web before it reaches the adhesive roll; characterized in that the elongated rotatable device ( 44 ) against the train ( 16 ) on the same side as the contact device ( 31 ) presses. Method according to claim 13, with application of adhesive to the corrugated tips of a one-sided corrugated cardboard ( 16 ) Web by guiding the one-sided corrugated cardboard web over the rotating adhesive roll ( 24 ), whereby the corrugated tips are oriented so that they face the roll. A method according to claim 13 or 14, comprising the step of adjusting the position of the rotatable device ( 44 ) relative to the elongate frame to determine the extent of the web that is in contact with the adhesive roller as it passes over the adhesive roller. The method of claim 13 or 14, wherein the step of adjusting the position is moving the axis of the rotatable device ( 44 ) relative to the frame ( 32 ) in a direction transverse to the direction in which the rotatable device of the elongated frame is spaced. Method according to one of Claims 13 to 16, which comprises forcing the web ( 16 ) in contact with the adhesive roll ( 24 ) by placing the web between the adhesive roll and a row of shoes ( 33 ) runs through, side by side across the elongated contact device ( 31 ) are arranged.