Abstract:
A device for placing a paper bag bottom produces score lines on the ends of tubular segments which are used for producing bags, applies glue layers to the folded bottoms on the extremities of the tubular segments and/or to sheets for gluing them with the bottoms with the aid of gluers and connects and glues the folded bottoms and the sheets. The device has at least one gluer which includes at least one glue reservoir or at least one glue duct, the glue contained in the reservoir or in the duct being exposed to a pressure higher than ambient pressure. The glue reservoir or the glue duct is provided with at least one output orifice for applying the glue to the sheets and/or to the folded bottoms.

Description:
This is a nationalization of PCT/EP03/009663 filed Aug. 29, 2003 and published in German. 
   BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The invention concerns a device for placing a paper bag bottom that has connected and glued folded bottoms. 
   2. Description of the Prior Art 
   Devices of this kind are used for manufacturing different types of bags. These include cement bags that are usually manufactured as valve bags. For this purpose usually the bottom folding involves the use of valve sheets that are inserted in the bottom of the bag. However it is important to differentiate between pinch-, block- and cross bottoms. In the creation of cross bottom bags that is explained, for instance, in DE 090 145 48 U1 and DE 3020043 A1, special demands were placed on the gluing. 
   In all devices of this kind the bag bottoms are formed with the help of glue—usually starch glue. For this purpose either the folded bottoms or the valve sheets assigned to them or both the aforementioned elements to be glued are provided with a glue layer and subsequently merged together. Each of the bag components is glued usually by bringing a format part in contact with glue rollers or other glue storage or transmission components. The format part is attached to a rotating roller and is often also referred to as a plate. By rotating the glue roller, the format part is supplied with glue. As the glue roller continues to rotate, the format plate transfers the glue stored on it to the respective bag component to be glued. 
   For this purpose the format part is provided with characteristic peaks (ridges) that are adapted to a definite bag format. In order to manufacture bags with different measurements on the bottoming device the format parts are replaced. 
   The described type of glue application has stood the test of time in the devices for placing a paper bag bottom because it enables a clean application of large quantities of starch glue that is otherwise difficult to handle. 
   However, this method of glue transfer makes it necessary to make available and later clean many mechanical glue transfer components—such as for instance the plate roller and the format parts. 
   Therefore the task underlying the present invention is to make these components redundant. 
   SUMMARY OF THE INVENTION 
   The task is solved by the fact that
         at least one gluer   that is equipped with at least one glue reservoir or at least one glue duct in which the glue is exposed to a pressure that is higher than the ambient pressure   and whereby the at least one glue reservoir ( 21 ) or the at least one glue duct is provided with at least one glue output orifice through which the glue is directly applied on the sheets and/or the folded bottoms ( 1 ).       

   An advantageous design form of the present invention can carry out a glue transfer process on the components to be glued while at the same time preventing a component of the bottoming device that is carrying the glue, such as the glue reservoir or the glue duct, from touching the bag components. For this purpose the output orifices should be appropriately distanced from the parts to be glued. The glue can be properly sprayed against the parts to be glued. This contact-free glue application can prevent the contours of the format from being smeared and thus distorted by the contact. 
   However, the contours can be intentionally smeared by the components of the gluer. Particularly, if the glue application occurs not across the entire surface but instead for instance in the form of glue lines, the entire surface can be covered with glue by smearing the glue lines. This smearing is possible by a direct contact between the glue reservoir or the glue duct and the glue lines. However, as a rule, additional rollers contribute to a smearing or compression of the glue lines. 
   Another advantageous design form of the present invention features numerous output orifices that are provided at a glue application head. 
   Further examples of implementation of the present invention emanate from the graphic description and claims. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The individual figures illustrate: 
       FIG. 1A  glue application device for bag bottom sheets in accordance with the prior art. 
       FIG. 2  A glue application device for cross bottoms in accordance with the prior art. 
       FIG. 3  View of a gluer in accordance with the present invention 
       FIG. 4  View of a gluer in accordance with the present invention that produces complex adhesive formats. 
       FIG. 5   a ) A side-view of an example of implementation of the present invention with a glue duct for the glue supply of the valve 
       FIG. 5   b ) A top-view of the example of implementation of the present invention illustrated in  FIG. 5   a ) 
       FIG. 5   c ) Another side-view of the example of implementation of the present invention illustrated in  FIG. 5   a ) 
       FIG. 6  A view of an application head with several rows of valves 
       FIG. 7   a ) A view of the side of an application head. The side illustrated is facing the parts to be glued. 
       FIG. 7   b ) An illustration of the glue duct from the valves to the output orifices in the example of the implementation of the application head illustrated in  FIG. 7   a ). 
       FIG. 7   c ) An enlarged section from  FIG. 7   b ) 
       FIG. 8   a ) A top-view of an application head that can move in the y-direction 
       FIG. 8   b ) A top-view of an application head that can move in the y-direction 
       FIG. 8   c ) A top-view of an application head that can move in the y-direction 
       FIG. 9   a ) A sheet  2  with a U-shaped adhesive format 
       FIG. 9   b ) A sheet  2  with an adhesive format in the shape of a rectangular frame. 
     Furthermore, the individual figures illustrate: 
       FIG. 10  Another side-view of a nozzle applicator 
       FIG. 11  Another top-view of a nozzle applicator 
       FIG. 12  Another section through a format plate system in accordance with the present invention (section A-A in  FIG. 4 ) 
       FIG. 13  Another top-view of a pin plate that is mounted on a base plate. 
   

   The following figures illustrate not only glue application devices for cross bottom bags but also devices of prior art. The illustrated devices in accordance with the invention apply glue solely on bottom sheets  2 . However they can also apply glue equally well on cross bottoms  1 . 
   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that he detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description. 
     FIG. 1  illustrates a glue application device as is usually used in accordance with prior art for gluing bottom sheets  2 . In this device glue is transferred from a glue cylinder  11  on the format part or plate  12 . The format part or plate  12  is carried by a plate cylinder  13  and around the axis of the plate cylinder  13  in the direction marked by the arrow  16 . In this movement of rotation the format part or plate  12  transfers glue on the bottom sheets  2  that are carried by the gripper cylinder  14  during the glue transfer. The bottom sheets  2  are carried beforehand by a transport device (not illustrated in the figure) along the dotted line  18  in the direction of the arrow x into the split between cylinders  13  and  14 . The rotation of the gripper cylinder  14  in the direction marked by the arrow  15  carries the glued sheets further to the bag bottoms  1 . The bag bottoms  1  are transported by a transport device (also not illustrated in the figure) in the direction of the arrow w. The bags  19  are closed by the bag bottoms  1 . 
   Between the gripper cylinder  14  and the transport device of the bags, a pressure is built up that compresses sheets  2  and bag bottoms with each other, thus joining them permanently. 
     FIG. 2  illustrates another glue application device  20  in accordance with prior art that is usually used for gluing the bag bottoms  1 . For this purpose, a plate or format part  22  that is attached to the circumference of the plate cylinder  23  is brought into contact with the glue transfer cylinders  28  by the rotation of the plate cylinder  23  around its axis  25  in the direction of the arrow  27  and thus supplied with glue. For this purpose the format part  22 , similar to the format part  12 , has recesses (not illustrated in the figure). These recesses are filled with glue when they contact the glue transfer rollers. 
   The glue transfer rollers  28  border the opening of a glue reservoir  21 . During their rotation the glue transfer rollers transport glue on their circumference from glue reservoir  21  to the plate  22 . 
   In the further course of the rotation of the cylinder  23 , the format part or plate  22  enters into the roller clearance  24  between the cylinders  29  and  23 . There the plate  22  transfers glue on a bag bottom  1 . The bag is transported beforehand by a conveying device along the dotted line  26  into the roller clearance. 
   In case the bag formats are altered, the format parts  12 ,  22  are replaced by format parts that conform to the new bag format. 
     FIG. 3  illustrates a sketch of a sheet gluer  30  of a cross bottoming device in accordance with the invention. It provides individual sheets  2  carried in the direction of the arrow x with glue lines  3 . For this purpose the gluer  30  is equipped with an application head  31 . This application head is provided with glue with the help of the tube  33 . The glue is distributed inside the application head  31  by appropriate glue ducts onto the valves  32 . The valves  32  are attached to the application head  31  in two rows that run transverse to the conveying direction x of the sheets  2 . These valves  32  are at least in the position to release or cut off the glue flow. They can be controlled by external, preferentially electric, signals and they  32  withstand the glue pressure. 
   On the under surface (not illustrated in  FIG. 3 ) of the application head  31  are the output orifices  71  through which the glue leaves the application head  31  and forms the glue lines  3 . The arrow x points to the transfer direction of the sheets  2 , while the arrow y points to the horizontal direction running transverse to it. 
     FIG. 4  illustrates a gluer  40  that is constructed externally exactly like the gluer  30  from  FIG. 3 . The various glue lines  44  to  47  show that the most different adhesive formats are realizable using such a device, without having to employ format parts. In this connection a variation of the plate breadth, i.e., the expansion of the adhesive surface in y direction is feasible by a switch-off or switch-on of valves  42  during the production of bags in this adhesive format. The valves that are switched off in this way are not active during the complete duration of the glue application of sheets  2 ,  48  or bag bottoms of one format. In this manner preferentially rectangular adhesive formats emerge—as illustrated in  FIG. 3 . These are formed out of the end-to-end glue lines  3 ,  47  that usually have the same length. 
   For this purpose the valves that are active white creating an adhesive format must be closed after creating an end-to-end glue track  47 . The valves should be reopened when the next still unglued sheet  48  arrives at the output orifices. In case of customary glue application speeds, this work sequence leads to considerable demands on the switching time of the valves  32 . If further variations in the form of the adhesive format or adhesive quantity are carried out, the valves  42  must be opened and dosed faster than the creation of end-to-end glue lines  47 . 
   Thus an essential variation of the applied adhesive quantity is possible particularly by applying several noncontinuous glue lines  44 . The further variation of the form of the adhesive format, involving a clear deviation from the rectangular shape, requires the application of short  45  and noncontinuous glue lines  46 . For example it is often necessary that the adhesive formats  4  have a U-shape  4   a ) or a rectangular frame  4   b ) as is illustrated in  FIGS. 9   a ) and  b ). For this purpose a different control of the valves is necessary while gluing a bag component that is to be glued  1 ,  2 . 
   It is advantageous if the valves provided in the bottoming device have a switching time and/or are switched in a time period less than 5 milliseconds. Then a large part of the variations of adhesive formats that are required in the industry and can be carried out by changing individual glue line lengths in the x direction, can be implemented in the manner described above using current gluing speeds. 
   With the help of the various glue lines  45  to  48  it is possible to sense how flexibly such a device in accordance with the present invention can generate formats if the valves are switched even faster. 
   The design forms illustrated in the  FIGS. 3 and 4  are as suitable for the actually illustrated gluing of individual sheets  2  as they are for gluing paper webs that can be separated later. Also in case of the bag bottoms  1  the glue application can be carried out analogously. 
   The  FIGS. 5   a ),  b ) and  c ) illustrate a preferential design form of the glue duct inside a design form of an application head  50  to the valves  32 . Also, the glue output borehole  71  and the glue duct from the valves  32  to the glue output lines  71  are not illustrated here considering the clarity of  FIGS. 5   a ) to  c ). 
   The glue duct results from two transverse channels  52  and  53  that are illustrated with dotted lines in the  FIGS. 5   a ) and  5   b ). These channels run in the application head  50  essentially transverse to the conveying direction x of the sheets  2  or bag bottoms  1 .  FIG. 5   c ) illustrates that these two glue channels  52 ,  53  in the illustrated design form are boreholes for production reasons. However, the channels can have another shape just as well. 
   Glue channels  55  rise from the glue channels  52 ,  53  in vertical direction z to each valve. The glue arrives through these glue channels  55  directly to the valve  32 . 
   Both the glue channels  52  and  53  can be advantageously connected to the front end of the head opposite to the glue ducts. The connection takes place by means of another glue channel that runs in the application head  50  in x direction. In this way the glue can flow e.g., via the glue channel  52  provided for this purpose with a feed line, and flow through the connection channel and through the glue channel  53  in order to drain finally through a glue discharge. In this manner a glue circulation through such an application head is possible. 
   These additional characteristics are however not illustrated in the  FIGS. 5   a ) to  c ). 
   The  FIGS. 6 and 7  highlight once again the relation between the number of valves  32  and the glue output orifices  71 . 
   This relation influences decisively the possibilities of adjusting the adhesive format breadth. Adhesive format breadth implies again the expansion of the adhesive format  4  in y direction. If only a limited number of valves is provided to which a large number of glue output orifices is assigned in each case, the desired format breadth is achieved roughly, i.e., with very low resolution. However tests show that at least one satisfactory portion of customary formats can be produced advantageously with a quorum of five valves that can be controlled independent of each other. 
   In the application head  60  illustrated in  FIG. 6  several rows of valves VRi to n are arranged one after another successively in the transfer direction x of the bag components that are to be glued. In order to illustrate the allocation of the valves to the valve rows, the reference numbers of the valves  32  and the glue channels assigned to them  72 ,  73  are indexed with the numbers of the respective valve row i-n. 
   It is advantageous to arrange the valves  32  in y direction one after another because the valves  32  that come into question for such a glue application device have a considerable overall breadth B. This overall breadth B often exceeds the desired distance between the glue lines in the direction transverse to the transport of the bag components. Generally it is advantageous to assign several glue output orifices to each valve as illustrated in  FIG. 7   b ). However in such a design form of the present invention, the closure of a valve leads to the interruption of several glue lines so that finally a lower resolution must be considered in case of the free structuring of the breadth of the adhesive format  4 . In case of an arrangement of a very large number of valves  32  on one application head  61 , it is possible to arrange the glue lines in the y direction close to one another and at the same time to achieve a very high resolution in the formation of the adhesive profile. It is also possible for this purpose to offset the valve rows in y direction against each other. Also in case of an application head with several valve rows VRi to VRn it is possible to ensure that the glue output orifices lie in one line as illustrated in  FIG. 7   a ). This can be achieved by directing the vertical glue output channels  72 ,  73  in x direction. 
   The afore-mentioned  FIG. 7   a ) illustrates the side  76  of an application head  70  that is facing the bag components  1 , 2 . The application head  70  consists essentially of a valve mounting plate  75  on which the valves  32  are located. As mentioned already the glue output orifices lie in one line that runs orthogonally here to the conveying direction x of the sheet  2 . Thus in the illustrated design form of the invention the boreholes  71  in x direction lie at the same level. 
   To position the output orifices  71  in x direction differently, differences in the run-time must be taken into account while controlling the valves. These differences in the run-time occur because the same bag component  1 ,  2  passes the glue outlets that are unequally arranged in x direction at different points of time. These run-time differences are speed-dependent and thus difficult to be taken into account. Therefore the arrangement illustrated in  FIG. 7   a ) is markedly advantageous. 
     FIG. 7   b ) illustrates how glue arrives from the valves  32  to the glue output orifices  71 . In the view illustrated in  FIG. 7   b ) only the valves  32   i  in the first valve row VRi can be seen. In the design form illustrated in  FIG. 7   b ), however, three valve rows are provided of which the two back rows are not illustrated. However, in this design form four glue output orifices  71  are assigned to each valve  32   i  to  32   iii . The braces  77   i  to  77   iii  mark three adjoining groups of glue output orifices  71  whereby each group is assigned at a time to a valve out of each of the three valve rows VRi to VRiii. In the y direction the openings of the valves lie centrally, thus in the center of their valve breadth B. These valve openings are aligned with the upper glue outlet channel  72 . In order to enable this type of arrangement the valve rows VRi to VRiii are each offset against each other by the distance C in the y direction. In the illustrated arrangement the distance A between the glue output orifices  71  is much smaller than the valve breadth B. Thus, initially very fine glue lines  3  with small interspacing can be created that can be turned into a flat application easily through smearing or compressing. 
   In the present design form of the invention the distance C defines the resolution already discussed above between adjoining two upper glue outlet channels  72  in y direction when the format breadth is adjusted by switching the valves on or off selectively. Similarly the distance C also defines the resolution when the shape of the adhesive format is adjusted, that is the desired deviation from the rectangular shape of the format  4  illustrated in  FIG. 3  that has already been discussed with reference to  FIGS. 4 and 9   a )  b ). 
   In this context  FIG. 7   b ) also illustrates the importance of the measure D that results from the addition of the distances A between the glue output orifices  71 , that are fed with glue from a valve. 
   In the example of implementation illustrated in the  FIG. 7   b ), owing to the described arrangement of different valve rows VRn behind one another, it is possible, that the dimension D is also clearly smaller than the valve breadth B (here D&lt;B/3). This factor is markedly advantageous because the consequently larger resolution in the case of a variation in format breadth and shape allows a more exact reduction of these measurements to what is actually necessary. Thus glue is saved. This is possible in case of sufficient resolution also without changing format parts  12 ,  22 . 
     FIGS. 8   a ) to  8   c ) illustrate in top-views of an example of implementation the mobility of an application head  80  in y direction relative to the sheets  2 . This design form of the invention opens up further variation possibilities in the areas of resolution and format breadth and thus further increases the flexibility when the adhesive profile  4  is formed freely, without making an exchange of format parts necessary. 
   The mobility is clearly on the basis of the position of the center lines o and p drawn in the illustration. The center lines o and p run through the center of the application head  80  and the sheet  2 . In  FIG. 8   a ) both these lines are in alignment. In both of the other figures a relative displacement of the application head  80  has taken place opposite to the sheet  2 . An extensive illustration of a displacement mechanism is omitted here. 
   As already mentioned the  FIGS. 9   a ) and  b ) illustrate a U-shaped  4   a ) and a rectangular glue format  4   b ) on two sheets  2 . The U-shaped glue format consists of end-to-end  3  and short glue lines  45 . The glue format in the shape of a rectangular frame  4   b ) is made up of end-to-end  3  and noncontinuous glue lines  46 . The different flow pattern of the glue lines is possible by controlling the glue valves  32  selectively during the gluing of a bag component  1 ,  2  that is to be glued. 
   In the figures no pumps or pressure tanks are illustrated that are usually required in order to convey the glue and build up or maintain the glue pressure required for the extrusion. All examples of implementation of the present invention illustrated and also described by the claims below also apply to an indirect gluing of bag components  1 ,  2  whereby the glue is first transferred on a roller or another form before it arrives on the bag components. 
     FIG. 10  illustrates another side-view of a nozzle applicator  114  as used e.g., in a bag machine. The nozzle  103  of the nozzle applicator is provided with a liquid glue via the glue supply  101  that meets the glue inflow  111 . The nozzle applicator receives power and control signals via the control line  102  and the connector  112 . 
     FIG. 11  illustrates another top-view of the same device. 
     FIG. 12  illustrates another section A-A through the format plate system  119 . The format plate system  119  consists in this example of implementation of the base plate  104 , the sandwich plate  105  and the pin plate  106 . By opening the valve  103  the pressurized glue is compressed by the inlet  116 . The complete channel system  115  defined by the pin plate is illustrated in  FIG. 13 . A channel system can also be a system with several channels  115 . The main purpose of such a channel system is the distribution of the glue onto several output orifices. That is all the more important since the gap between the output orifices is usually smaller than the breadth of the valves. Also the costs of the valves are high and justify the use of such a channel system. Therefore it is also possible to provide several channels with glue from one valve. The channels can then distribute the glue on several output orifices. In the example of implementation illustrated, the adhesive and/or glue arrives from the channels  115  into the output orifices  113 . Subsequently the adhesive leaves the output orifices  113  and is applied on paper or foil material  107  and forms adhesive tracks  108  there since the material  107  is moved past the format plate system  119  in the direction of the arrow  121 . In the illustrated example of implementation the output orifices  113  are sealable by pins  120 . These pins are fastened rotatably in the pin plate  106  and are fixed by the safety device  118  in axial direction. The pins  120  pierce through the output orifices  113 . On the level of the output orifice  113  the pins contain a glue outlet orifice  117 . In an appropriate adjustment this borehole allows glue to pass through so that adhesive is applied on the material  107 . In  FIG. 12  the adhesive application has just been completed. For this purpose the pin  120  was turned by 90° just like a screw with the help of a groove (not illustrated in the figure) in the pinhead  110 , so that the axis of the glue admission orifice  117  projects out of the drawing plane and one can look into this opening  117 . 
     FIG. 13  illustrates a top-view of a pin plate  104  that is removed from the remaining format plate system  119 . The observer looks in the direction of the glue flow on this plate. The channels  115  and the output orifices can be recognized clearly. 
   The invention being thus described, it will be apparent that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be recognized by one skilled in the art are intended to be included within the scope of the following claims. 
   
     
       
             
           
             
             
           
         
             
                 
             
             
               List of reference symbols 
             
             
                 
             
           
           
             
                 
             
           
        
         
             
               x 
               Conveying direction of the sheets 
             
             
               y 
               Direction in space transverse to the conveying direction 
             
             
                 
               of the sheets (horizontal) 
             
             
               z 
               Direction in space transverse to the conveying direction 
             
             
                 
               of the sheets (vertical) 
             
             
               w 
               Conveying direction of the bag bottoms 1 
             
             
                1 
               Bag bottom 
             
             
                2 
               Sheet 
             
             
                3 
               Glue line 
             
             
                4 
               Rectangular adhesive format 
             
             
                  4 a) 
               U-shaped adhesive format 
             
             
                  4 b) 
               Adhesive format in the shape of a rectangular frame 
             
             
               10 
               Known gluer, preferentially for sheets 
             
             
               11 
               Glue cylinder 
             
             
               12 
               Plate and/or format part 
             
             
               13 
               Plate cylinder 
             
             
               14 
               Gripper cylinder 
             
             
               15 
               Arrow in the rotating direction of the gripper cylinder 14 
             
             
               16 
               Arrow in the rotating direction of the plate cylinder 13 
             
             
               17 
               Arrow in the rotating direction of the glue cylinder 17 
             
             
               18 
               Dotted line 
             
             
               19 
               Bag 
             
             
               20 
               Known gluer, preferentially for cross bottoms 
             
             
               21 
               Glue reservoir 
             
             
               22 
               Plate and/or format part 
             
             
               23 
               Plate cylinder 
             
             
               24 
               Roller clearance 
             
             
               25 
               Axes of the cylinders 
             
             
               26 
               Dotted line that sketches the route of transport of the bags 
             
             
               27 
               Rotating direction of the cylinders 
             
             
               28 
               Glue transfer cylinder 
             
             
               29 
               Impression cylinder 
             
             
               30 
               Glue application in accordance with the invention 
             
             
               31 
               Application head and/or application plate 
             
             
               32 
               Valves 
             
             
                 32n 
               Valve of the nth. valve row 
             
             
               33 
               Glue feed line/tube 
             
             
               40 
               Gluer in accordance with the invention 
             
             
               41 
               Application head and/or application plate 
             
             
               42 
               Valves 
             
             
               43 
               Glue feed line/tube 
             
             
               44 
               Glue lines discontinued at regular distances 
             
             
               45 
               Short glue line 
             
             
               46 
               Noncontinuous glue line 
             
             
               47 
               End-to-end glue line 
             
             
               48 
               Non-glued sheet 
             
             
               50 
               Application head 
             
             
               52 
               Glue channel in y direction (horizontal) on the application head 
             
             
               53 
               Glue channel in y direction (horizontal) on the application head 
             
             
               55 
               Glue channel in z direction (vertical) on the application head 
             
             
               56 
               Mounting plate 
             
             
               60 
               Application head with n valve rows 
             
             
               61 
               Valve mounting plate 
             
             
               VRi 
               First valve row 
             
             
               VRii 
               Second valve row 
             
             
               VRn 
               nth valve row 
             
             
               66 
               The side of the valve mounting plate facing away from the bag 
             
             
                 
               components to be glued. 
             
             
               70 
               Application head 
             
             
               71 
               Glue output orifice 
             
             
               72 
               Upper glue output channel 
             
             
               73 
               Lower glue output channel 
             
             
               75 
               Valve mounting plate 
             
             
               76 
               The side of the valve mounting plate facing the bag 
             
             
                 
               components to be glued 
             
             
                77i 
               First group of glue output orifices 
             
             
                 77ii 
               Second row of glue output orifices 
             
             
                  77iii 
               Third row of glue output orifices 
             
             
               A 
               Distance between two glue output orifices 71 in y direction 
             
             
               B 
               Breadth of the valve 32 in y direction 
             
             
               C 
               Distance between two adjoining upper glue output 
             
             
                 
               orifices in y direction 
             
             
               D 
               Sum of the distances between the glue output orifices 71 that 
             
             
                 
               are provided with glue from a valve. 
             
             
               80 
               Example of implementation of an application head 
             
             
               o 
               Center line of the application head 80 
             
             
               p 
               Center line of the sheet 2 
             
             
               y 
               Space direction transverse to the conveying direction of the bag 
             
             
                 
               components 
             
             
               101  
               Glue supply 
             
             
               102  
               (electric) control line 
             
             
               103  
               Electromagnetic valve 
             
             
               104  
               Base plate 
             
             
               105  
               Sandwich plate 
             
             
               106  
               Pin plate 
             
             
               107  
               Paper/foil 
             
             
               108  
               Adhesive/glue (starch basis or dispersion) 
             
             
               109  
             
             
               110  
               Pinhead 
             
             
               111  
               Glue inflow 
             
             
               112  
               Connector 
             
             
               113  
               Output orifice 
             
             
               114  
               Sealing 
             
             
               115  
               Channel 
             
             
               116  
               Inflow 
             
             
               117  
               Glue supply borehole 
             
             
               118  
               Pin safety device (retainer) 
             
             
               119  
               Format plate system 
             
             
               120  
               Pin 
             
             
               121  
               Arrow in the direction of the material (107) handling