DE7538002U - APPLICATION MACHINE FOR APPLYING VISUAL MEDIA, SUCH AS GLUE, LACQUER, ECT. IN THE FORM OF A FILM ON THE LEVEL OF THE WORKING AREA - Google Patents

Description

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HÖGER - LEGAL RIGHTS - GRIESSBACH - HAECKER IN STUTTÖART

A 41 514 h
y - 137
11/26/75

Company Horst Kirchner Maschinenbau 7o81 Essingen, Bahnhofstr. 94

Application machine

for applying viscous media such as glue, varnish, etc. in form of Film on flat workpiece surfaces

Dit? The invention relates to an application machine for application viscous media such as glue, varnish, etc. in the form of a film on flat workpiece surfaces »with at least one applicator roller, which runs off the workpiece surface to be coated and one of which forms a metering gap together with the application roller defining metering roller is assigned.

There are already various designs of application machines known, which are usually used for gluing flat workpieces serve on one or both flat sides. Everyone

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What these order machines have in common is that they are conditioned by the high pressures that occur between the two rollers during dosing arise, have very large roller diameters, around the D \ jjrqhr Bending of the rollers due to the high pressures to be kept within tolerable ^ limits. For example, with pass widths from three to four meters roller diameter of 500 to 600 mm is required. Besides the considerable costs for the ' Manufacturing such rollers results in the disadvantage of a. ,,

large space requirements and correspondingly large dimensions !!

such machines.

In many cases, correspondingly large roller diameters are dispensed with, but this comes at the expense of the desired evenness in the order.

This is where the invention comes in. It is based on the object of structurally improving an application machine of the type described at the outset in such a way that a perfect thickness of the layer to be applied is achieved even with a relatively large passage width and relatively small roller diameters.

This object is achieved according to the invention in that one of the two rollers, preferably the metering roller, can be pivoted about an axis that is transverse to its longitudinal axis in such a way that the width of the metering gap remains essentially the same over its entire length during the metering of the medium The roller creates this effect in that the bending of the rollers resulting from the squeezing force is caused by the inclination

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The metering gap runs along a steep helical line, which means that the gap width is largely constant will.

The application roller can at the same time form the conveyor roller for the workpiece to be coated. It is also advantageous also to drive the metering roller, with a corresponding choice of differences between the roller circumferential speeds optimal dosage is achieved. The pivotable roller can also about a lying approximately in the middle of its longitudinal axis Be pivotable transverse pivot axis. However, a construction is preferably used in which at least one end preferably both ends of the adjustable roller by means of a bearing journal in one pivotable about the axis of rotation of the other roller and lockable bearing rocker mounted and the bearing pin relative to the pivot plane of the bearing rocker are movably mounted in these. This makes it particularly easy to ensure that the width of the metering gap does not change even at its end regions during the inclined division of the roller.

In a further advantageous embodiment of the invention, one of the rollers is in the radial direction for quickly opening the metering gap adjustable so that, for example, a complete cleaning in a very short time after applying glue of the glue space between the rollers is possible with water or another suitable liquid.

Finally, it is advantageous to use the bearing journals of both rollers to be provided removable at their front ends, so that with a

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necessary changes of the same whose bearing body can remain in the machine frame by after unscrewing the Bearing journals the rollers can be lifted out of the machine, e.g. upwards.

The invention is not limited to applicator machines with an applicator roller; rather, it can also be designed in this way be that on opposite flat sides of workpieces at the same time an order of a corresponding Medium is possible. In this context, it should also be pointed out that the idea on which the invention is based This is also the case with other devices or machines in which the working pressures caused rollers to work together subject to deformation, can be realized.

In the drawing, a schematic representation is possible Embodiment of the invention is illustrated. Show it:

Fig.l is a front view of an orphan and a metering roller interacting with this in connection with a storage device,

2 shows a partial plan view of the two rollers according to FIG. 1 and their bearing arrangement,

Fig.3 shows the position of the axes of both rollers when the one roller is tilted,

4 shows a longitudinal section through one end of one of the two rollers.

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In Figs. 1 and 2, Io is preferred on its circumference an application roller which has an elastic coating and with which a metering roller 12 cooperates. It is assumed that these two rollers are rotatably mounted in a machine frame, with they are mounted with bearing journals 14 and 14 'provided at their end faces in corresponding bearings 16, 16'. Both rollers define a metering gap 18 between them and above it form a storage space 2o, in dark a medium, for example glue, can be filled. While in the present embodiment, the application roller Io is stored in bearings 16 fixed to the frame, is the

and storage 16 '

Metering roller 12 is held with its bearing pin / in a respective bearing rocker 22. The bearing rockers, for their part, are on the bearing journals 14 of the applicator roller Ιο, ζ.Β. by means of a ball bearing 24, mounted pivotably and pivotable and lockable by means of an adjusting device 26 about the bearing axis of the applicator roller. The adjusting device is formed, for example, by a threaded spindle 28 which is supported on a stationary stop 32 by means of an adjusting nut 3o. The bearings 16 'receiving the bearing journals 14' of the metering roller 12 form self-aligning bearings, each of which is arranged in a guide body 34, which in turn is adjustable in a guide 36 of the bearing arm radially to the longitudinal axis of the applicator roller Io by means of a, for example, pneumatically actuated Verscell device, not shown in detail . This ^J st it possible to open the metering gap very quickly in order to clean such as the pantry 2o or rolling on its periphery quickly.

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With a 38 arranged in each rocker arm, adjustable stop is referred to, to which the guide body 14 when Close the gap. Due to the arrangement of the bearing rockers, the metering roller 12 can be one to their Swivel longitudinally transverse axis, whereby in the present exemplary embodiment this swivel axis is e.g. Bearing 16 'passes through, which remains in its position when the other bearing rocker along the arrow direction indicated in Fig.l along an arc, i.e. concentric to The axis of rotation of the applicator roller lo is pivoted. This will achieved that despite the working pressure between the two rollers and the resulting deformation of the two rollers, the metering gap has an almost unchanged width over its entire length and thus a uniform one Layer thickness is guaranteed over the entire width of the workpiece.

3 illustrates the position of both roller axes, with that of the applicator roller being denoted by 40 and the axis of rotation of the metering roller by 42. From this figure it can be seen that the pivot axis of the metering roller 12 is located at 44, whereby due to the arrangement of the self-aligning bearings 16 'the bearing journals 14' are able to carry out the necessary pivoting movement relative to the bearing rocker 22 in question. As can be seen from FIG. 4, the bearing journals H and 14 'are removably arranged on the rollers by screwing them with a mounting flange 46 to a mounting ⁵ ring 48 inserted into the end face of the rollers, with a mounting ring between the flange and the mounting ring Spacer

7538002 04/22/76

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is arranged, which is penetrated by the fastening screws 52. The same has a circumferential groove on its outer circumference 54, which serves to accommodate a sealing piece 56 between the two rollers at their end faces, which the Form the end walls of the storage space 2o.

7538002 2Z.0t.75

Claims (4)

• ντ • 111, '· I ■ III A 41 514 h 26.11.75 claims for protection 1. Application machine for applying viscous media, such as glue, varnish, etc., in the form of a film on flat workpiece surfaces, with at least one application roller that runs on the workpiece surface to be coated and one ausammeη defining an Oosierspalt with the applicator roller The metering roller is assigned, characterized in that one of the two rollers (Io or 12), preferably the metering roller (12), about an axis (44) which is transverse to the longitudinal axis (42) thereof pivot '^ ar is that the width of the metering gap (18) remains essentially the same over its entire length during the metering of the medium. 2. Application machine according to claim 1, characterized in that at least one end, preferably both ends the adjustable roller (Io or 12) by means of a bearing pin (14,14 *) in / a pivotable and lockable bearing rocker around the axis of rotation (4o or 42) of the other roller (22) are mounted and the bearing journals are movable relative to the pivot axis of the bearing rockers (22) therein are stored. 3. Application machine according to claim 1 or 2, characterized in that that one of the rollers (Io or 12) in the radial direction to quickly open the metering gap (18) is adjustable. 7538002 04/22/76 To get in • ι 1 j ¹ »I> A 41 514 h
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11/26/75 4. Application machine according to claim 2 or 3, characterized in that the bearing journals (14, 14 ') of both rollers (lo _f i2) are detachably arranged at their front ends.