JP5427461B2 - Pasting material strips in the tobacco processing industry - Google Patents

Description

  The present invention relates to an adhesive applicator for tobacco processing industry in which an adhesive is applied to a material band of tobacco processing industry by a mesh roller having a small bowl, and an adhesive distribution chamber is disposed on the mesh roller. The adhesive is taken out by the mesh roller. The invention further relates to a method of applying adhesive to a material band in the tobacco processing industry, in particular by means of a mesh roller with a small bowl, wherein the adhesive is removed from an adhesive distribution chamber located on the mesh roller.

  This invention relates to a method of operating an adhesive applicator for tobacco processing industry, in particular to apply an adhesive to a material band of the tobacco processing industry by means of a mesh roller with a small bowl, and to use a blade in the adhesive applicator of the tobacco processing industry. About.

  In order to join the cigarette rod and the cigarette filter, usually a piece of coated paper is prepared, which wraps the filter on the one hand and on the other hand joins the protruding end and the head end of the cigarette rod with the filter. The cigarette rod and the filter are usually joined together by bonding, and an adhesive is applied to a coated paper strip that is cut into coated paper pieces.

  EP 1147716 (Patent Document 1) describes a device for applying an adhesive to a packaging material or band of a rod-shaped article in the tobacco processing industry. In order to form an adhesive image comprising areas without adhesive on the wrapping band, the device has means for interrupting the adhesive supply to the wrapping band.

  Another adhesive applicator is known from EP 0 616 854 (Patent Document 2), where liquid adhesive, in particular in the form of an adhesive image, paper, synthetic resin, cardboard etc. It is applied to a band consisting of In this case, a transmission roller is provided that receives the adhesive from the storage chamber to the gravure and applies the adhesive to the application zone from the gravure to the belt in cooperation with the reverse roller. The described adhesive applicator is in particular a component of a cigarette filter mounting machine. In this case, a liquid adhesive, in particular a polyvinyl acetate adhesive, is continuously applied to the coated paper strip and the coated paper strip is subsequently cut into coated paper strips that join the tobacco rod and filter cork.

  In addition, C. B. A bonding apparatus for applying a coated paper strip under the name TPA3000 of Kaymich & Co. Limited is known, and this bonding apparatus is used for a filter mounting machine under the name of the patent applicant MAX, for example. In this case, the adhesive is taken out from the adhesive storage tank by the rotating wheel and stored in the adhesive chamber. The adhesive is taken out from the adhesive chamber by a mesh roller having a small bowl and applied to the coated paper strip conveyed at a predetermined transport speed.

  For example, at a high production rate in a filter loading machine up to 20000 cigarettes per minute, the adhesive may be insufficiently applied to the coated paper strip, or there may be gaps or interruptions due to processing-related faults in the application system. To occur.

European Patent Application No. 1147716 European Patent Application No. 0616854

  Starting from this prior art, the object of the present invention is to provide an adhesive on the wrapping band of the tobacco processing industry so that a satisfactory adhesive image is generated on the wrapping band even at a higher production rate of the machine. It is to improve the application of.

  The problem is that an adhesive is applied to a material band in the tobacco processing industry, particularly with a mesh roller having a small bowl, and an adhesive distribution chamber is arranged on the mesh roller, and the adhesive is taken out from the distribution chamber by the mesh roller. In the cigarette processing industry adhesive applicator, the external conveying conduit is connected to the internal supply conduit of the adhesive distribution chamber, in particular the adhesive is connected via the conveying conduit and the (internal) supply conduit of the adhesive distribution chamber. It is solved by an adhesive application device characterized in that it is supplied.

  This invention is based on the idea of supplying the adhesive in the adhesive distribution chamber directly and externally so that the adhesive enters the adhesive bath or the open adhesive reservoir, for example, without coming into contact with oxygen. Furthermore, a simple construction of the adhesive applicator is provided, since in this case it is no longer necessary to remove the adhesive from the adhesive reservoir into the adhesive pot, the adhesive being applied to the mesh roller. This is because the required amount of adhesive is now continuously supplied to the adhesive dispensing chambers taken out by. In addition, the area or periphery of the mesh roller is held without adhesive. Moreover, this configuration of the adhesive applicator has the advantage that it is not used in the adhesive distribution chamber, i.e. fresh adhesive can be supplied.

  The adhesive applicator according to the invention is used in particular in machines in the tobacco processing industry, in particular in filter mounting machines, for example with adhesive on coated paper strips. In this case, a predetermined adhesive image or adhesive design is applied on the coated paper strip. Since the adhesive is taken out from the adhesive distribution chamber arranged in the mesh roller under the rotation of the mesh roller by the container in the empty small bowl of the mesh roller, and the mesh roller is arranged in the upper part of the adhesive reservoir, The mesh roller and the adhesive storage tank are not in contact with each other such as an adhesive pot.

  In another embodiment, it is further contemplated that a particularly controllable or adjustable transport pump is connected to the external transport conduit and that a particularly controllable or adjustable throttle is arranged in the external transport conduit. Yes. This makes it possible to supply continuous fresh adhesive to the adhesive applicator.

  Furthermore, if the sensor is provided in the external conveying conduit or in the internal supply conduit of the adhesive supply chamber or in the discharge conduit connected to the adhesive supply chamber, the required amount of adhesive is determined by the sensor. It is an advantage that it is adjusted depending on the detected measurement data, in particular the amount of pressure and / or the amount of adhesive. In particular, a delivery pump, for example a membrane pump, is connected to the delivery conduit in series with the restriction, and the arrangement allows the restriction to regulate the speed-dependent supply for the amount of adhesive supplied to the adhesive distribution chamber.

  The adhesive applicator is preferably formed by an adhesive distribution chamber with a chamber bottom facing the mesh roller and a chamber height cross section arranged or formed vertically, particularly transversely to the chamber bottom. The ratio of the chamber bottom to the chamber height cross section is greater than 1, in particular greater than or equal to 1.25 or 1.5 or 1.75 or 2. In Kaymich's known adhesive applicator TPA3000, the ratio of the bottom of the chamber to the vertically formed chamber height cross-section is smaller / same, because the volume of the adhesive distribution chamber is half This is because it has a shell-like cross section.

  The increase in the volume of the adhesive distribution chamber, which extends substantially longitudinally in the longitudinal section or has a trapezoidal cross section, increases the residence time of the bowl and thereby the time for the adhesive to be accommodated in the bowl. . In addition, the larger volume of the adhesive distribution chamber simultaneously achieves that the air bubbles present in the adhesive are increased with the bubbled adhesive and are evacuated again to the upper side of the adhesive distribution chamber. Thereby, an improved adhesive container is obtained in the small bowl. As the chamber bottom surface, the chamber bottom surface facing the mesh roller and forming a contact area with the mesh roller is understood. Further, the chamber height cross section is a surface formed along the width of the adhesive distribution chamber in the cross section. In particular, the chamber height cross section and the chamber bottom are formed perpendicular to each other.

  Moreover, in the reproduction of the adhesive applicator, the adhesive is intruded through the at least one opening in the area of the inlet zone, or has entered the outlet zone in the area of the inlet zone with respect to the direction of rotation of the mesh roller. In this region, it is discharged or discharged from the adhesive distribution chamber through at least one outflow opening. Thus, for example, the flow of adhesive into the adhesive dispensing chamber is performed from bottom to top in the case of a mesh roller or adhesive roller that flows upward, or from top to bottom in the case of a mesh roller that flows downward. To be done. The adhesive distribution chamber may be disposed on the front surface, the rear surface, or the lower surface of the mesh roller with respect to the contact surface or contact area between the mesh roller and the material band to be attached and the conveyance direction of the material band.

  Furthermore, according to another proposal for solving the problem, an adhesive applicator of the kind mentioned above is characterized in that the adhesive distribution chamber is sealed on at least one of the two lateral front sides, in particular with a mesh roller between the front sides. Is reproduced. As a result, the adhesive does not flow directly from the adhesive dispensing chamber into the adhesive reservoir of the adhesive pot, but rather, an extra portion of the adhesive is retained in the edge area to allow the adhesive to be Holding in the area is achieved, whereby adhesive application or containment is achieved in the edge area of the mesh roller. Therefore, increased adhesive is applied on the coated paper strip in the edge area or in the contact area between the filter pot and the tobacco rod to be bonded thereby, thereby bonding between the tobacco rod and the filter pot. Is improved.

  Furthermore, within the scope of the configuration, excess adhesive flows out of the adhesive distribution chamber on the lateral front, and the discharge conduit is provided with a throttle to regulate the discharge amount, and the discharged adhesive It can be considered that it is continuously mixed with fresh adhesive and again fed to the external adhesive supply of the adhesive distribution chamber.

  In addition, it is effective in the configuration of the adhesive distribution chamber when a chamber for containing liquid is provided, and the mesh roller chamber is delivered when production is stopped or the application of adhesive to the material strip is interrupted. Or being delivered, the mesh roller is contacted or contacted from the chamber by a liquid, in particular water.

  For example, when the production of a machine in which the application of the coated paper strip is interrupted is interrupted for a long time, according to the present invention, the water guide or water-containing chamber is located on the mesh roller. After entering the liquid, the liquid is brought into contact with the surface of the mesh roller to prevent drying of the adhesive in the mesh roller bowl. In this case, in particular a predetermined level or liquid level is formed or maintained in the additional chamber of the mesh roller. The mesh roller bowl is in contact with the liquid in the second additional chamber during production stoppage, interruption of adhesive application to the material band, or interruption of transport of the material band.

  In the reproduction, since another chamber is formed so as to be pivotable or movable, it can be swung away or moved away from the mesh roller upon re-arrival of the filter mounting machine, so that a small bowl of mesh rollers can be obtained. Is contemplated to remove the adhesive from the adhesive dispensing chamber.

  It is obvious that within the scope of the invention the described adhesive application device may have a combination of the essential features of the invention described in other configurations.

  Furthermore, the problem is that, in the method in which the adhesive is applied to the material band of the tobacco processing industry, in particular with a mesh roller having a small bowl, the adhesive is taken out from the adhesive distribution chamber arranged on the mesh roller. Is solved by a method characterized in that the adhesive is supplied via an external delivery conduit of the adhesive distribution chamber and an internal supply conduit connected directly to the external delivery conduit.

  It is further contemplated in this case that the adhesive is supplied to the adhesive distribution chamber by means of a transport pump which is connected to the transport conduit and can be controlled or adjusted in particular.

  In addition, the method is such that the amount required for the adhesive conveying conduit is adjusted or controlled in particular by the conveying conduit connected to the conveying conduit or to the internal supply conduit and / or to the adhesive distribution chamber. It is characterized by being.

  In addition, the method preferably includes the adhesive being fed to the adhesive distribution chamber via at least one inflow opening provided in the lateral outer surface of the adhesive distribution chamber, so that the lateral direction of the adhesive distribution chamber It is reproduced by being discharged from the adhesive distribution chamber through an outflow opening formed in the region of the adhesive distribution chamber, in particular facing away from the outer surface.

  With the solution according to the invention, the inflow of the adhesive into the adhesive distribution chamber takes place from outside to inside, so that a large amount of adhesive in the outer area of the mesh roller is taken out and thereby the filter pot to be joined in the seam area A large amount of adhesive is also applied to the contact area between the tobacco rod, thereby improving the adhesion or bonding between the filter pot and the tobacco rod so that more adhesive can be applied to the coated paper strip or piece of coated paper. To be applied. Due to the supply and discharge of the adhesive according to the invention, an adhesive flow direction is formed in the adhesive distribution chamber from the outside to the inside.

  According to a preferred configuration, it is furthermore contemplated that the adhesive lateral chamber adhesive is simultaneously supplied to the two lateral outer surfaces of the adhesive dispensing chamber. In the center of the adhesive distribution chamber, excess adhesive flows out of the adhesive distribution chamber.

  Further, a method in which an adhesive is applied to a material band in the tobacco processing industry, particularly with a mesh roller having a small bowl, and the adhesive is taken out from an adhesive distribution chamber disposed on the mesh roller is under the use of the adhesive application device. The operation is based on one or more of the above embodiments.

  In particular, reproduction of the adhesive applicator or method is intended to ensure the continuous supply of adhesive of the adhesive applicator with the provision of adhesive with sufficient pressure and sufficient amount, A sensor is integrated into the inflow or discharge conduit of the sensor so that the sensor detects pressure or volume flow so that the appropriate adhesive restriction in the inflow or discharge conduit is continuously bonded to the mesh roller or adhesive roller. Adjust to ensure a sufficient supply of agent.

  In another embodiment, the adhesive application device has a force introduction point in the adhesive distribution chamber, wherein the adhesive application device has no frictional pressing means or an adhesive distribution chamber pressing means on the mesh roller. It is reproduced. Thereby, the adhesive distribution chamber is pressed against the mesh roller in another form through the introduction point, or is pressed by a predetermined pressure. In an alternative configuration, an adhesive application device with a pressing means having a single force introduction point or force transmission point is formed on or near the adhesive distribution chamber, so that the adhesive is applied during the action or operation of the pressing means. The distribution chamber is pressed against the mesh roller through this only introduction point, which is arranged especially in the center of the adhesive distribution chamber.

  Furthermore, the reproduction of the adhesive applicator is characterized in that the means for pressing the adhesive distribution chamber against the mesh roller is formed in particular by a dedicated, ie only one compressed air cylinder. Within the scope of the invention, it can be considered that a suitable spring or lever is provided instead of the compressed air cylinder, so that the adhesive distribution chamber is pressed against the mesh roller without friction.

  Furthermore, the problem is that the adhesive is applied to the material band of the tobacco processing industry, in particular by a mesh roller with a small bowl, and the adhesive is taken out of the adhesive distribution chamber located in the mesh roller, and by a blade placed in the mesh roller. The excess contained adhesive is scraped from the mesh roller, the blade is pressed against the mesh roller by a predetermined blade pressing or force, and the blade is between the blade and the tangent line extending to the contact point of the mesh roller and the blade. Solved by a method in which the angle is formed and the blade pressing or pressing force is reduced or reduced when the blade angle is expanded or the blade pressing or pressing force is increased when the blade angle is reduced Is done.

  Excess adhesive is scraped from the mesh roller on the adhesive distribution chamber or the outflow side of the adhesive chamber by the blade, and the blade angle is determined by the predetermined (detected) amount of adhesive (per time unit). In particular, in the tobacco processing industry, for example, with the same production speed of filter mounting machines, so that when the blade angle is changed, the blade tip or the straight line of the blade surface to the surface of the mesh roller It is formed so that the pressure of the blade in the contact area is changed. In particular, it makes it possible to precisely adjust the desired or predetermined amount of adhesive (per unit of time) to be applied to the material band or coated paper band while keeping the production speed constant, and in addition to this, a slight wear Blade blade scraping which contacts the mesh roller of the blade is reduced or reduced, so that the used blade can be used, for example, for a long time, thereby replacing the worn blade Must be done during production.

  Furthermore, the adjustment of the blade angle and the variation of the blade pressure ensure that on the one hand the small bowls of the mesh rollers are evenly filled and that the adhesive image is correctly applied onto the pressed material band. In addition, a plurality of adhesive dispensing chambers or adhesive chamber replacement systems with various appropriately adjusted blade angles are provided so that replacement of adhesive chambers with blades with predetermined blade angles formed in mesh rollers. Can be exchanged in a simple and quick manner for other adhesive chambers with blades and other blade angles in accordance with the desired adhesive image and the desired amount of adhesive to be applied on the material strip, The amount of adhesive can be appropriately changed or changed by the use of blades with predetermined different blade angles, resulting in slight wear or slight scraping on the blade surface due to blade pressing.

  Particularly preferably, the blade angle is adjusted or adjusted between 15 ° and 40 °, in particular between 20 ° and 40 °, more preferably between 30 ° and 35 °. .

  Thereby, reliable and satisfactory adhesive application can be achieved even when the production speed of the filter mounting machine is fast (for example 20000 cigarettes per minute), preferably with a removed adhesive (per hour) embodiment in particular 30 The blade angle between 0 ° and 35 ° remains constant and is minimized at different production speeds for a given blade angle and more than 5000 to 20000 cigarette machines per minute. Thereby a wide working range is achieved with a constant blade pressure, with a constant adjusted blade angle between 30 ° and 35 ° with respect to the production speed of the filter mounting machine, so that the adhesive applicator and the constant blade With the use of angle and without changing the adhesive applicator or the adhesive chamber, the material strip is securely applied at different production speeds, and the amount of adhesive applied outside it (filtered per hour) is filtered It remains substantially or substantially constant at different production speeds of the mounting machine. As a result, when the production speed of the machine fluctuates, the adhesive chamber or the adhesive application device provided with other blades having other blade angles is not replaced.

  Furthermore, this problem is particularly observed in an adhesive application device in which an adhesive is applied to a material band in the tobacco processing industry by a mesh roller having a small bowl, and the adhesive is taken out from an adhesive distribution chamber disposed in the mesh roller. The chamber can swivel around a swivel axis formed parallel to the rotation axis of the mesh roller, in particular the swivel axis extends by the mesh roller, in particular to the blade, in particular the linear contact area of the blade surface, and the adhesive chamber is particularly Placed between the pressing means and the rear surface of the adhesive chamber under the use of a ball joint on the rear surface of the adhesive chamber that is pressed against the mesh roller by a dedicated pressing means and facing away from the mesh roller of the adhesive chamber In particular, the adhesive application device is characterized in that the force introduction point of the pressing means is formed on the rear surface of the adhesive chamber in the center with respect to the center and / or height of the adhesive chamber. .

  On the outflow side of the adhesive distribution chamber or the adhesive chamber, the adhesive received excessively from the small bowl of the mesh roller is scraped off by the blade formed by the blade surface arranged on the mesh roller, and the adhesive distribution While removing the adhesive from the chamber, the small bowl is evenly filled with the adhesive on the edge area of the mesh roller based on the swirlability of the adhesive chamber, so that a uniform adhesive image is printed on the material band to be printed To occur.

  In particular, the swivel axis of the adhesive chamber is formed so as to extend along the rotation axis of the mesh roller or across the width of the mesh roller collinearly with the surface of the mesh roller and the linear contact area of the blade surface. In the rotation operation of the adhesive applicator in the filter mounting machine inside the adhesive distribution chamber to be taken out, the pressure gradient of the adhesive pressure in the adhesive distribution chamber is automatic type or avoids different pressing force, so that the blade is uniform. Pressing is performed over the entire width. The adhesive chamber or the adhesive distribution chamber is also pressed against the mesh roller by using a ball joint arranged at the center of the rear surface of the adhesive chamber connected to the pressing means, for example, the pressure cylinder, and the adhesive chamber This adhesive chamber can be moved by a degree of freedom of rotation based on the ball joint bearing of the same, which also provides automatic compensation of the pressure gradient of the adhesive pressure in the adhesive dispensing chamber, thereby also reducing the adhesive pressure. Pressure gradients can be avoided.

  Furthermore, this problem is evident in that the blade has a position mark, in particular the blade cooperates with the shape supplement or function supplement position code by means of the position mark and the position mark in the adhesive chamber of the adhesive applicator. Can be positioned or can be positioned on the installation surface of the adhesive chamber, in particular the position mark of the blade is formed as a depression or ridge, or the blade is a metal or metal alloy, in particular a copper-containing alloy, preferably bronze or chrome This is solved by using blades in the adhesive distribution chamber of the tobacco processing industry which is made of an alloy, preferably chromium-chromium.

  The position mark formed on the blade prevents the side of the blade from being replaced because the position of the blade is exclusively based on the position mark provided for the adhesive chamber and therefore the shape supplement or function supplement position code. This is because it can be installed only in a certain form. For this purpose, for example, position marks are formed outside the symmetry axis or symmetry plane of the blade. In this case, the position mark is a bulge, a deep part, a dent or a gradient. As a whole, a simplified operation and precise positioning of the blade takes place in the adhesive chamber of the adhesive applicator, thereby allowing a rapid replacement of the blade or blade knife outside of it.

  In addition, when the blade is made from metal or alloy, it is preferred, so that the blade has increased working stiffness and higher wear stiffness. Thereby, the usage time of the blade is appropriately extended.

  Furthermore, the use of the blade in the adhesive applicator means that the blade has a non-linear, in particular a curved or bent blade surface, especially in the adhesive chamber or in the adhesive distribution chamber. It is arrange | positioned at the inflow surface of the mesh roller of an adhesive agent distribution chamber, It is characterized by the above-mentioned.

  An adhesive chamber with blades is formed on the outflow surface of the adhesive distribution chamber with a straight blade surface and is formed on the inflow surface by a non-straight, i.e. non-straight, formed blade surface. Automatic alignment is improved during production operation, i.e. during continuous application of material strips, since contact points are formed on the inflow surface of the mesh roller which cooperates with the non-linear blade surface, This is because the adhesive chamber is automatically aligned during production rotation by contact points around or about the pivot axis.

  Within the scope of this invention, the features of the adhesive applicator of the filter mounting machine or the features of the described method can be combined.

  Other features of the invention will become apparent from the description of the embodiments according to the invention together with the claims and the attached drawings. Embodiments according to the invention can satisfy individual features or a combination of features.

1 shows a schematic representation of an adhesive application device in a longitudinal section. 1 shows a schematic representation of an adhesive application device in a longitudinal section. The schematic plan view of an adhesive agent coating apparatus is shown. Fig. 3 shows a schematic representation of a part of an adhesive application device in a longitudinal section in another configuration. The schematic top view of the braid | blade used for the adhesive agent coating apparatus is shown. 1 shows a schematic side view of a blade used in an adhesive application device. FIG. 4 shows a schematic rear perspective view of an adhesive chamber member of the adhesive chamber. FIG. 3 shows a schematic front perspective view of an adhesive chamber member of the adhesive chamber. Fig. 2 schematically shows a detailed view of a blade in contact with a mesh roller. FIG. 2 schematically shows a perspective view of an adhesive chamber disposed on a mesh roller. FIG. 3 shows a perspective side view of an adhesive chamber of an adhesive applicator for the tobacco processing industry.

  The invention will now be described with reference to the drawings based on embodiments without limitation of the general inventive idea, and is expressly suggested in the drawings with respect to all details according to the invention not described in detail in the text. .

  In the following figures, the same or similar elements or corresponding members are provided with the same reference numerals, so that appropriate new referrals are not considered.

  FIGS. 1a and 1b each show the adhesive applicator in longitudinal section, the schematic representation showing a plurality of elements or members. Within the scope of the invention, an adhesive applicator according to the invention is described and comprises one or more of the elements described and illustrated.

  The adhesive applicator has a mesh roller 5 disposed in the adhesive container 4 and driven to rotate, and this mesh roller is driven to rotate in the direction of the drawn arrow 6. A small bowl of the mesh roller 5 is placed in the adhesive distribution chamber 7 of the adhesive chamber 3, receives the adhesive brought into the adhesive distribution chamber 7, and flows out the adhesive into the area of the upper scraper or blade 8. Subsequently, the small bowl filled with the adhesive is conveyed to the adhesive application zone 9 under the rotation of the mesh roller 5, and the paper band 10 to be continuously applied is conveyed by the mesh roller.

  An appropriate adhesive image is applied to the lower surface of the paper strip 10 by an adhesive container. In order to reliably guide the paper strip 10 in the area of the adhesive application zone 9, an upper guide rod 11 or a guide roll is provided.

  In the embodiment shown in FIG. 1a, the paper strip 10 is conveyed in a straight line, i.e. without curvature, into the area of the mesh roller 5 between the guide rods 11, whereas according to the embodiment shown in FIG. Is conveyed by the mesh roller 5 by a (large) wrapping, because the guide rod 11 is arranged deeper than in the embodiment according to FIG. 1 a or close to the adhesive container 4.

  Further, within the scope of the present invention, the mesh roller 5 cooperates with the reverse roller in the area of the adhesive application zone 9 to apply an appropriate adhesive image to the lower surface of the paper band 10. After taking out the adhesive from the mesh roller 5 bowl, the bowl is again rotated relative to the adhesive dispensing chamber 7.

  Adhesive is supplied to the adhesive distribution chamber 7 via an external conveying conduit 12 and an internal conduit 13 of the adhesive distribution chamber 7. For this purpose, since the transport conduit 12 is connected to the transport pump on the inlet side, the adhesive is supplied from the external adhesive reservoir to the internal supply conduit 13 via the external transport conduit 12.

  In order to achieve a controlled adhesive supply to the adhesive distribution chamber 7, in the reproduction the sensor 15 is arranged beside the transport conduit 12 or in the transport conduit 12, so that the measured data detected is controlled by the control device. 16 to allow proper control of the restriction 17 located in the conveying conduit 12. Thereby, a controlled continuous filling of the adhesive distribution chamber 7 is achieved.

  In addition, a discharge conduit 18 can also be connected to the adhesive dispensing chamber 7 and a sensor 19 is arranged in the configuration to detect the back flow of the adhesive. In accordance with the amount of adhesive measured on the reflux conduit 18, the restriction 17 connected to the control device 16 is adjusted appropriately.

  Since the container 21 filled with a liquid, in particular water, reaches the mesh roller 5 during the production stop when the sticking is not performed, the small bowl of the mesh roller 5 is subsequently passed through the water bath existing in the container 21 and then the adhesive. It is conveyed to the distribution chamber 7. This measure prevents the adhesive from drying out during production interruptions or interruptions.

  Furthermore, in FIGS. 1a and 1b, the adhesive distribution chamber 7 is formed longitudinally in cross section, ie with a trapezoidal or trapezoidal cross section. In this case, the adhesive distribution chamber 7 between the points A and B forming the end points of the adhesive distribution chamber 7 has a chamber bottom facing the mesh roller 5. Between the points C and D, a chamber height cross section formed perpendicularly thereto is formed. Within the scope of this invention, the ratio of the chamber bottom formed between points A and B to the chamber height cross section formed between points C and D is greater than 1, preferably 1.25,1. .5, 1.75,2 greater / same ratio, so that the volume of the adhesive dispensing chamber 7 is compared to an adhesive dispensing chamber (in the prior art) with a semi-circular cross section. Has been expanded.

  As is apparent from FIGS. 1 a and 1 b, in the configuration, the adhesive chamber 3 is pressed against the surface of the mesh roller 5 via a pressing device 22 disposed at the center. The centrally arranged pressing device 22 is a spring or a compressed air cylinder or the like in construction.

  Since the adhesive chamber 3 is completely sealed in configuration, the adhesive does not flow from the adhesive chamber 3 to the sealing surface, to the scraper on the outer surface of the mesh roller 5, or to the radial packing on the front surface of the mesh roller 5. .

  If the adhesive chamber 3 is not completely sealed in another configuration, the adhesive flowing out to the unsealed location is collected in the adhesive container 4. Preferably, the adhesive collected in the adhesive reservoir in the adhesive container 4 is emptied by the suction pipe 26. In this case, the suction pipe 26 is arranged at a predetermined interval above the surface of the bottom of the adhesive container, and the level of the adhesive in the adhesive container 4 is detected by the filling state sensor. The collected adhesive is removed through the suction pipe by suction of the suction pump. The released adhesive is mixed with fresh adhesive and supplied to the adhesive distribution chamber as an adhesive.

  In addition, an adhesive chamber 3 is formed by the inlet side blade near the outlet side blade 8. In this case, the blade can be formed as a positive blade or a negative blade within the scope of the present invention. In addition, a plurality of blades can be arranged back and forth with respect to the rotation of the mesh roller 5.

  FIG. 2 shows a schematic plan view of the adhesive distribution chamber 7 which is formed vertically in cross section (see FIGS. 1a and 1b). In the inflow region of the mesh roller 5, the adhesive distribution chamber 7 has a lower inlet opening 23 disposed laterally on the outer surface, and the adhesive is delivered to the adhesive distribution chamber 7 through the opening. An outlet opening 24 is arranged at the center in the upper area of the mesh roller 5, that is, the outflow area, and a circulation conduit 18 is connected to the outlet opening. In this case, excess adhesive is discharged from the adhesive distribution chamber 7 to the center via the circulation conduit 18.

  FIG. 3 schematically shows a part of the adhesive application device in a longitudinal section of another configuration, in particular the mesh roller 5 is shown, one embodiment comprising three blades 27, 28, 29.

  According to FIG. 1a or FIG. 1b, the blade 8 is arranged on the outlet side so that the blade 8 is arranged at an acute angle in the conveying direction of the mesh roller by the arrow 6 with respect to the tangent (tangent) of the outer surface of the mesh roller 5. obtain. The blade 8 is an exit side blade of the adhesive chamber 3. Appropriate inlet blades are provided, and in FIG. 1a or FIG. 1b an adhesive chamber 3 can be arranged on the inlet side, corresponding to FIG. 1a or FIG. Is directed with respect to the conveying direction of the mesh roller 5.

  An alternative for this is the arrangement according to FIG. 3, where an inlet blade 27 and an outlet blade 28 are provided, the ends of which are shown relative to the mesh roller 5. Thereby, the inlet blade 27 is arranged in the conveying direction indicated by the arrow 6, and the outlet blade 28 is arranged opposite to the conveying direction of the mesh roller indicated by the arrow 6. The edges of the blades 27 and 28 leaning against the outer surface of the mesh roller 5 provide an adequately good seal, and are relatively independent of the internal pressure of the medium in the adhesive chamber 3, with relatively little force. It can be pressed against the mesh roller 5.

  To this end, in the preferred embodiment, another blade 29 is provided, which is arranged between the blades 27 and 28 and has an acute angle with respect to the tangent to the mesh roller 5 in the conveying direction according to arrow 6. Is arranged. A particularly good adhesive is pressed against the mesh or small bowl of the mesh roll 5 by the blade 29 or the scraper 29. The blade 28 scrapes off any adhesive that is present particularly well in areas without adhesive.

  4a and 4b are different views of each blade 30 used in an adhesive chamber for an adhesive applicator in the tobacco processing industry. FIG. 4 a shows a plan view at the rear of the blade 30, and FIG. 4 b shows a side view of the blade 30.

  The blade 30 has a blade body 31 having a rear surface of the rear upper edge 32 on the upper side. Furthermore, the blade 30 has a blade surface 33 which extends linearly in the case of the blade 30 shown in FIG. 4a. The blade 30 is inclined between the rear upper edge 32 and the blade surface 33 and has a blade edge surface 34 on the rear surface.

  The blade edge surface 34 is formed with an angle of inclination with respect to the vertical line, and typically the angle of inclination of the blade edge surface 34 can be varied between 10 ° and 80 °.

  The blade 30 has an inclined blade edge surface 34 on the rear surface so that the front surface 35 is larger than the parallel rear surface 36 of the blade 30.

  In FIG. 4 a, a recess 37 formed with the blade 30 as a position mark is provided on the lower surface in the left region of the blade 30. Generally, the blade 30 is formed from a synthetic resin, particularly polyetheretherketone (PEEK). In another configuration, blade 30 is made from a metal or metal alloy, such as bronze or chromium-nickel.

  FIGS. 5a and 5b show a rear view (FIG. 5a) and a front view (FIG. 5b) of the adhesive chamber member 40, which is used in the tobacco processing industry due to the configuration of the adhesive chamber. It is used for a mesh roller to form an adhesive application system.

  The adhesive chamber member 40 has two outer slope members 41 and 42 that are formed in a U-shaped cross section and include an end that joins the front surface that reaches the mesh roller of the adhesive application device. The slope members 41, 42 have blade contact surfaces 43, 44 that are inclined obliquely outwardly extending on the inner surface, and the blade 30 is mounted on the rear surface or the rear surface 36 as shown in FIG. 4a. The An appropriate blade angle is formed in the contact area between the surface of the mesh roller and the blade by the gradient of the blade contact surfaces 43 and 44 (see FIG. 6).

  As is clear from FIG. 5b, the blade abutment surface 43 has a protrusion 45 on the left side which is formed in a shape- and function-complementary manner relative to the recess 37 of the blade 30 shown in FIG. 4a. Engagement of the protrusion 45 with the recess 37 during the abutment of the blade 30 ensures that the precise positioning of the blade 30 is achieved on the blade abutment surface 43 in an obvious manner, so that the back surface 36 (FIGS. 4a and 4b always). Is abutted on the blade abutting surface 43. Therefore, since the blade 30 can be swung or the left and right side surfaces and the front and back side surfaces can be replaced, the blade to be contacted when replacing the blade is brought into its correct position and alignment.

  The blade chamber member 40 has a ball joint guide 47 on the rear surface 46, and a ball joint fixed to a pressure cylinder or other pressing means can be inserted and held in the guide. In this case, when the adhesive chamber member 40 is positioned on the mesh roller, the pressure cylinder or the pressing means is operated, so that the force is applied to the center M (adhesive chamber) on the rear surface 46 of the adhesive chamber member 40. (In relation to the width and height of the member).

  FIG. 6 shows a contact area between the blade 30 and the mesh roller 5 in an enlarged schematic cross-sectional view. The mesh roller 5 is rotated opposite to the clockwise direction by the arrow 6 shown in FIG.

  The blade 30 is placed on the blade contact surface 44 of the inclined member 42 by the rear surface so as to prevent the blade 30 from sliding down, and is fitted or fixed by appropriate fixing means. Since the slope member 42 ends at the outer end of the blade 30 at the end of the rear surface 36 in the region of the back upper edge 32, the end of the blade 30 is aligned when the adhesive chamber is provided with the blade 30 on the mesh roller 5. The blade 30 is not bent and is pressed against the mesh roller 5 by a predetermined pressure or a predetermined force.

  Since the blade surface 33 of the blade 30 is in contact with the surface of the mesh roller 5, the blade 30 or a linear contact region between the blade surface 33 and the mesh roller 5 is formed along the blade surface 33 perpendicular to the drawing plane. .

  In the contact region, a predetermined blade angle α is formed by the front surface 35 of the blade 30 and a tangent line 38 that contacts the contact point between the blade surface 33 and the mesh roller 5, and is generated by the gradient of the blade contact surface 44 of the slope member 42. .

  The blade angle is particularly preferably between 30 ° and 35 °, in particular an angle of 32.5 °, since this type of blade angle α is an aspect of the amount of adhesive contained (per hour). Is minimized at a given blade press and different machine production rates (between 5000 and 25000 cigarettes per minute). This is achieved at a set blade angle of 32.5 ° in a filter mounting machine with an adhesive application device according to the invention having a blade arrangement, and at a production rate of 5000 cigarettes per minute and eg 20000 per minute Adhesives that are reliably reproduced on paper strips or coated paper strips without changing the blade arrangement at the time of production of cigarettes and transmitted per hour at different production speeds of the machine The amount is not so different, i.e. not different.

  FIG. 7 schematically shows the arrangement of the adhesive chamber 3 in the mesh roller 5. In this case, the adhesive chamber 3 has an adhesive chamber member 40 (see FIG. 5a), which chamber member is limited by side members 48, 49 on both sides, and these side members are mesh rollers 5 To the side.

  The mesh roller 5 is driven to rotate about its rotation axis 55. Under rotation, the mesh roller 5 removes the adhesive from the adhesive reservoir into the adhesive chamber 3, and at the outlet of the small bowl filled with adhesive, excess adhesive is in the linear contact area between the surface of the mesh roller and the blade surface ( (See FIG. 6) It is scraped off at the outlet side.

  The side members 48 and 49 have a recess 51. A holding pin 52 is laterally engaged with the recess, and the holding pin 52 is fixed to the housing laterally, for example, in the housing. Chamber 3 is arranged. The recess 51 in the side members 48 and 49 is arranged so that the holding pin 52 extends collinearly to the contact area or contact line between the surface of the mesh roller 5 and the blade surface of the blade. The chamber 3 can turn around the turning axis 70. The pivot axis 70 extends collinearly with respect to the linear contact area between the blade surface and the surface of the mesh roller 5.

  FIG. 8 schematically shows a perspective view of the blade chamber 3, and the right side member is not filled in for better displayability (see FIG. 7, reference numeral 48).

  From the outlet side of the adhesive chamber 3, the blade 30 having the linear blade surface 33 is disposed on the blade contact surface 44 of the slope member 42. A blade 60 is disposed on the blade contact surface 43 of the slope member 41 on the inlet side facing the mesh roller 5, and this blade has a non-linear blade surface 33. The non-linear blade surface 33 has a head vertex 64 at its center. The contact surface 43 that coincides with the blade 60 is similarly formed with a bent portion (not shown here).

  In order to form an adhesive distribution chamber (FIG. 1a or FIG. 1b, symbol 7) to prevent the blades 30 and 60 from slipping down and to be fixed to the blade contact surfaces 43 and 44, the blades 30 and 60 are fixed. The clamping member 62 is assembled or fixed between the slope members 41, 42, and the clamping member is suitable for feeding and discharging adhesive from an adhesive dispensing chamber formed in cooperation with the mesh roller. A perforated hole.

  Individual features disclosed in combination with all the above features and other features that employ the drawings alone, alone and in combination, are considered the essence of the present invention. Embodiments of the invention can be satisfied by individual features or a combination of features.

  Therefore, the present invention is not limited to the preferred embodiments illustrated in the figures in the examples. Rather, many aspects are contemplated, and these aspects are used in other embodiments that are basically similar to the illustrated solution and the principles of the present invention.

3. . . . . Adhesive chamber 4. . . . . 4. Adhesive container . . . . Mesh roller 6. . . . . Arrow 7. . . . . 7. Adhesive distribution chamber . . . . Blade 9. . . . . Adhesive zone 10. . . . Paper strip 11. . . . Guide rod 12. . . . Transport conduit 13. . . . Supply conduit 14. . . . Pump 15. . . . Sensor 16. . . . Control device 17. . . . Aperture 18. . . . Reflux conduit 19. . . . Sensor 20. . . . Adhesive 21. . . . Room
22. . . . Pressing device 23. . . . Inlet opening 24. . . . Outlet opening 26. . . . Suction pipe 27, 28, 29, 30. . . Blade 31. . . . Blade member 32. . . . Rear upper edge 33. . . . Blade surface 34. . . . Blade edge surface 35. . . . Front 36. . . . Rear surface 37. . . . Dimple 38. . . . Tangent 40. . . . Adhesive chamber member 41, 42. . . Slope member 43, 44. . . Blade contact surface 45. . . . Projection 46. . . . Rear surface 47. . . . Ball joint guide 48, 49. . . Side member 51. . . . Hollow 52. . . . Holding pin 55. . . . Rotation axis 60. . . . Blade 62. . . . Tightening member 63. . . . Blade surface 64. . . . Head vertex 70. . . . Swivel axis 70
α. . . . . Blade angle A, B, C, D. . . point

Claims (11)

Adhesive (20) is applied to a material band (10) of the tobacco processing industry by a mesh roller (5) having a small bowl, and an adhesive distribution chamber (7) is arranged on the mesh roller (5), and the distribution is performed. In an adhesive applicator in the tobacco processing industry, where the adhesive (20) is removed from the chamber by a mesh roller (5), the external conveying conduit (12) is connected to the internal supply conduit (13) of the adhesive distribution chamber (7). The adhesive is supplied to the adhesive distribution chamber (7) via the conveying conduit (12) and the supply conduit (13), and one controllable or adjustable conveying pump (14) is externally conveyed. Adhesive application device, characterized in that it is connected to the conduit (12) and has one controllable or adjustable throttle (17) arranged on the external conveying conduit (12) . A sensor (19) is provided in the external conveying conduit (12), in the internal supply conduit (13) or in the discharge conduit (18) connected to the adhesive distribution chamber (7), so that the adhesive is transported. measurement data amount is detected by the sensor (19), i.e. depending on the amount of pressure and / or amount of adhesive, the adhesive coating apparatus according to claim 1, characterized in that it is adjusted. Adhesive dispensing chamber (7) have been formed by the mesh roller (5) disposed and vertically transverse to the chamber bottom and the chamber bottom surface facing has been or formed a chamber height cross-chamber height The ratio of the chamber bottom to the cross-section is greater than 1, ie 1.25 or 1.5 or 1.75 or 2 / greater than or equal to the value of the adhesive with respect to the direction of rotation of the mesh roller (5) Has entered through the area of the inflow zone to the adhesive distribution chamber (7) through at least one opening and / or the adhesive (20) has entered the area of the outflow zone into the adhesive distribution chamber (7). 7. Adhesive applicator according to claim 1 or 2 , characterized in that it is discharged or discharged from at least one outlet opening (24) from 7). The adhesive distribution chamber (7) is sealed on at least one lateral front or both lateral fronts, and a mesh roller (5) is arranged between the fronts. adhesive application device according to any one of 3. A chamber for receiving liquid is provided, and the mesh roller (5) when the chamber (21) stops production or when the adhesive application to the material strip (10) is interrupted or during the stop or interruption of the adhesive application. The mesh roller (5) is contacted or contacted via the liquid from the chamber (21), ie water, so that the chamber (21) can swivel The adhesive application device according to any one of claims 1 to 4 , wherein the adhesive application device is formed. The adhesive chamber (3) can be swung around a swivel axis (70) formed in parallel with the rotation axis (55) of the mesh roller (5), and the swivel axis (70) is a blade (30), that is, a blade surface ( 33) and extend in a straight line contact area of the mesh roller (5), have been pressed against the mesh roller with an adhesive chamber (3) is one of the pressing means (22) (5), pressing means ( 22) of the pressing means (22) and the rear surface (46) of the adhesive chamber (3) under the use of a ball joint on the rear surface (46) facing away from the mesh roller (5) of the adhesive chamber (3). be disposed between, claims 1 to 5 the force introduction point, characterized in that it is formed at the center with respect to the width and / or height of the adhesive chamber (3) to the rear surface of the adhesive chamber (3) The adhesive application device according to any one of the above. Blade (30, 60) is provided, having a blade (30) position mark (37), the blade (30) position mark (37) and the position of the adhesive chamber of the adhesive application device (3) or mark is positioned (37) is shaped complementary or functional supplementary position code (45) and in cooperation with the adhesive chamber unambiguous format installation surface (3) (43), or can be positioned, a blade The ( 30) position mark (37) is formed as a depression or ridge and / or the blade (30) is made of a metal or metal alloy, i.e. a copper-containing alloy, i.e. bronze or a chromium-containing alloy, i.e. chromium-nickel. The adhesive application device according to any one of claims 1 to 6, wherein the adhesive application device is manufactured. The blade (60) has a non-linear , curved, bent or corrugated blade surface (63), and the blade (60) is in the adhesive chamber (3) or the adhesive distribution chamber (7). The adhesive application device according to claim 6 or 7 , wherein the adhesive application device is arranged or arranged on an entrance side of the mesh roller (5). A method of applying an adhesive to a material band in the tobacco processing industry by a mesh roller (5) having a small bowl , wherein the adhesive (20) is taken out from an adhesive distribution chamber (7) disposed on the mesh roller (5). In an adhesive distribution chamber (7), an adhesive (20) is connected to an external conveying conduit (12) of the adhesive distributing chamber (7) and an internal supply conduit directly connected to the external conveying conduit (12). A controllable or adjustable transport pump (14) connected to the external transport conduit (12) and one control to the external transport conduit (12). A possible or adjustable throttle (17) is arranged and the adhesive (20) is fed to the adhesive distribution chamber (7) by a controllable or adjustable transport pump (14) connected to the transport conduit. And adhesive (20 Wherein the amount conveyed to the delivery conduit is either adjusted by an aperture (18) disposed on the delivery conduit (12), or is controlled. Adhesive (20) is supplied to the adhesive distribution chamber (7) through at least one inlet opening provided in the laterally outer surface of the adhesive distribution chamber (7), so that the lateral side of the adhesive distribution chamber (7). Discharged from the adhesive distribution chamber (7) through an outlet opening (24) formed in the intermediate region of the adhesive distribution chamber (7) facing away from the direction outer surface, and at the same time both of the adhesive distribution chamber (7) 10. A method according to claim 9 , characterized in that an outlet opening (24) provided in the lateral outer surface allows adhesive to be fed into the adhesive dispensing chamber (7). The excess adhesive contained in the mesh roller (5) by the blade (30) is scraped off from the mesh roller (5), and the blade (30) is pressed against the mesh roller (5) by a predetermined blade pressing force . A blade angle (α) is formed between the blade (30), the mesh roller (5), and the tangent (38) extending to the contact point of the blade, and the blade angle (α) is increased. 11. A method according to claim 9 or 10 , characterized in that the blade pressing force is reduced or reduced or the blade pressing force is increased when the blade angle (α) is reduced.

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