JP2014502922A - Lever arm suspension for adhesive application head and adhesive application head with lever arm suspension - Google Patents

Abstract

  The application heads 15 and 115 for dispensing a fluid material, for example, an adhesive, include a nozzle chamber 10 formed therein, and nozzle needles 11 and 111 movably attached to the nozzle chamber 10. Have The outlet opening 12 is opened by the movement P in the opening direction of the nozzle needles 11 and 111. Further, a material supply passage 13 and a material supply pipe are provided for introducing the material into the nozzle chamber 10. The drive unit 20 causes the movable member 11, 111 to move in the opening direction P. The coating heads 15 and 115 further have lever arms 30 and 130. The first ends 31 of the lever arms 30 and 130 are movably connected to the rear ends of the nozzle needles 11 and 111, and the second ends 32 are connected to the drive unit 20. According to the first aspect, the membrane-type suspension device 33 provided with the membrane 34 is provided, and according to the second aspect, the rocker-type suspension device 133 provided with the lever arm 130 is provided.

Description

  The present invention relates to a lever arm suspension device for use in an adhesive application head and an adhesive application head for dispensing a fluid adhesive having a lever arm suspension device. The present invention is particularly concerned with adhesive dispensing and the use of hot glue. The present invention can also be used for controlled dispensing of cold glue or erosive (eg, corrosive) components.

  This application claims the priority concerning German utility model registration application No. 201011000179.2 filed with the German Patent and Trademark Office on January 25, 2011.

  In many industrial processing steps, adhesives, sealing compounds and similar fluid materials are applied or sprayed onto a workpiece or substrate in liquid form.

  Corresponding application heads must be robust and capable of dispensing materials with high precision and very accuracy. In addition to this, the application head can be switched quickly in order to allow the adhesive to be accurately divided in quantity and to be applied accurately in spots or bands. There must be. Furthermore, the coating head should not be too large because the space that can be used by the corresponding coating device is often limited.

  Furthermore, the application head should be able to be used flexibly and be able to be repaired if necessary. Moreover, it is preferable that the coating head can be switched or monitored by a controller.

  Furthermore, additional problems arise when processing hot glue. For example, a large amount of heat present inside the application head can damage the drive unit. There are also types of glue containing erodible additives. For example, the pH of the glue may be in the acidic region. Furthermore, the glue may contain components that have a corrosive or abrasive action. Appropriate measures must be taken to protect the application head from these.

  An object of the present invention is to provide a coating head that can be precisely operated and has high reliability, which can eliminate or completely improve some of the deficiencies of previously known solutions. It is.

  2. The lever arm suspension according to claim 1, wherein the object is one of a different selective configuration (A) or a selective configuration (B), and a different selective configuration (A) or selection. 23. An adhesive application head according to claim 21 having a corresponding lever arm suspension according to any one of the specific configurations (B).

  The first adhesive application head according to the present invention is particularly configured to dispense a flowable medium. The coating head includes a (nozzle) chamber formed inside the coating head, and a nozzle needle, a needle valve, or a slide movably attached to the inside of the nozzle chamber (these are: In this specification, they are collectively referred to as “movable member”). In each case, the movable member moves only for a short time to open the outlet opening. The application head can also operate in the reverse manner, in which case the valve is used by the piston rod to close the material flow. While being connected to the (nozzle) chamber, it is preferable to provide a material supply passage which can be connected to the material supply pipe so as to be in fluid communication. The material having fluidity can be introduced into the (nozzle) chamber through the material supply pipe and the material supply passage. The drive unit causes the movable member to move in the opening direction or in the closing direction. A lever arm is provided, and its first end (extremal end) is movably attached to the rear end of the movable member, and its second end is connected or connected to the drive unit. ing.

  According to the invention, the adhesive application head comprises a lever arm suspension with the following optional configuration (A) or selective configuration (B).

  According to alternative configuration (A), the lever arm suspension is a membrane suspension with a membrane. The lever arm extends in a direction substantially perpendicular to the surface spanned by the membrane of the membrane suspension. The membrane is used to movably connect the lever arm to the application head. In addition, the membrane suspension functions as a seal to prevent escape of fluid material from the (nozzle) chamber.

  The membrane suspension according to the selective configuration (A) includes a lever arm that can be connected to the movable member and the drive unit in order to convert the movement on the drive unit side into an opening movement of the movable member. And a membrane operatively connected to the lever arm. In addition, the membrane suspension is configured to movably connect the lever arm to the application head. Further, the membrane of the membrane suspension functions as a seal for preventing leakage of the adhesive from the chamber.

  Furthermore, the membrane is preferably configured to be resistant to flowable materials. In all embodiments of the invention, the membrane is preferably heat and / or corrosion resistant and / or wear resistant and / or resistant to chemical additives in the material. .

  Furthermore, the membrane is preferably configured to exhibit a non-linear movement behavior.

  Depending on the embodiment of the invention, the membrane may comprise at least one seal ring for elastic clamping of the membrane in the application head, which functions as a seal. This feature can be used in all embodiments of the present invention, for example to improve the seal against adhesive leakage.

  In particular, embodiments of the present invention preferably include a metal membrane that can provide rapid rearward and forward movement and thus allows rapid opening and closing of the outlet opening. Such metal films are particularly suitable for embodiments that change the load at high frequency, i.e., embodiments that require rapid opening or closing. The metal film as the film is particularly advantageous and can be used in all embodiments of the present invention. Such a metal film is particularly suitable when the apparatus is at a high temperature and a high pressure. The membrane may have a plurality of slots for enhancing its elasticity in combination with a central opening through which the lever arm extends when the lever arm is mounted.

  The lever arm and the membrane are operatively connected to each other in such a manner that the membrane suspension device converts the movement of the driving unit side into the movement of the movable member in the opening direction opposite to that in the mounted state. ) You may connect.

  Furthermore, the membrane may have a support for predefine non-linear movement behavior. In this case, the membrane may in particular comprise a support with a pin that makes it possible to influence the movement behavior. The membrane may also include a support with an area configured to be clamped in or against the adhesive application head.

According to an alternative configuration (B), the lever arm suspension is a rocker mounting with the following components:
A lever arm that can be connected to the movable member and the drive unit to convert the movement on the drive unit side into an opening direction movement of the movable member.
A rocker mounting device configured to movably connect a lever arm to an application head.
A sealing device configured to prevent leakage of adhesive from the chamber through the opening of the plate member.
The advantage of the embodiment of the lever arm suspension as the rocker mounting according to the selective configuration (B) when compared with the embodiment as the membrane suspension according to the selective configuration (A) is the lever in the rocker mounting The arm rotation axis can be well-defined. As a result, the mounting structure of the lever arm mounting configured as a rocker mounting in the adhesive application head is simplified.

The rocker mounting device may include the following components.
A rocker member rigidly connected to the lever arm and having a longitudinal direction and first and second mounting points. The longitudinal direction is a direction extending in a direction substantially perpendicular to the lever arm in a plane parallel to the spreading surface of the plate member, and the first and second attachment points are located apart from each other in the longitudinal direction. ing.
First and second support devices disposed on a rocker bearing side of the plate member and configured to support a first or second bearing point.

  The first and second support devices may be formed as first and second spheres. In this case, the plate member may have first and second recesses at a site on the rocker support side. In this case, the first and second recesses are each formed as a plate member side ball seat, and the rocker member is formed on the side facing the plate member as a rocker member side ball seat. There may be first and second recesses. One advantage of the two sphere rocker fixture configuration is that the pressure of the adhesive can be absorbed via the sphere. Another advantage is that the force always remains the same during the deflection of the lever arm, as opposed to the situation in a membrane that does not have a linear or constant spring constant.

  In a first development to achieve the above objective, the diameter of each recess on the plate member side can be larger than the diameter of the sphere, and in some cases can be about 0.1 mm larger. . In this way, during operation of the adhesive application head, the spheres can rest on the adhesive film in the recesses on the plate member side. Furthermore, the first or second sphere can be pressed in the first or second sphere seat on the rocker member side.

  In an alternative second further development to achieve the above objective, the diameter of each recess on the rocker member side can be larger than the diameter of the sphere, and in some cases about 0.1 mm larger. can do. In this way, during operation of the adhesive application head, the sphere can rest on the adhesive film within the recess on the rocker member side. Furthermore, the first or second sphere can be pressed in the first or second sphere seat on the plate member side.

  The seal ring may include an O-ring disposed around the opening on the rocker member side. In one embodiment for this purpose, the plate member may have a plate member side O-ring seat formed so as to surround the opening on the rocker member side. The rocker member may have a corresponding rocker member side O-ring seat on the side facing the plate member. In particular, the plate member-side O-ring seat may be configured as a flange formed around the opening at the outlet of the opening on the rocker member side. The flange may have a first contact surface parallel to the spreading plane of the plate member and a second contact surface having a cylindrical inner wall surface for supporting the outer peripheral surface of the O-ring. Good. And you may comprise a rocker member side O-ring seat part as a flange formed in the side part of the rocker member facing a plate member. The flange has a first contact surface parallel to the spreading surface (plane) of the plate member, and a second contact surface having a cylindrical outer wall surface for supporting the inner peripheral surface of the O-ring. You may do it. This would be the configuration required when the travel of the movable member is large and therefore the deflection of the lever arm is large. The seal ring formed as an O-ring may be replaced with other special seals and, in some cases, with a seal in the form of a sleeve. The first advantage of the configuration using the seal ring as the O-ring is that a standard specification member (O-ring) can be used. The second advantage will become clear from the following description. That is, in the case of a lever arm suspension device configured as a membrane-type suspension device in which the pressure chamber seal with respect to the external space is formed only by the membrane itself, when the membrane ruptures, A sudden and massive leak or drainage of the adhesive will occur. In contrast, in the case of a lever arm suspension configuration as a rocker fixture, such a sudden spill cannot occur.

  The rocker fixture may further comprise a spring member that pretensions the rocker member in a direction that acts in the direction of the plate member and the mounting points. In this case, the spring member may be a spiral spring arranged around the lever arm, on the side of the plate member opposite to the rocker fixture side. In addition to this, the plate member may have a plate member side seat portion for the spring member disposed around the opening at a portion opposite to the rocker bearing side. And the lever arm may have the lever arm side seat part for the spring member formed as a flange in the outer drive part side edge part.

The lever arm is composed of two parts or parts and is provided with a first sub-arm that can be connected to the movable member on the rocker bearing side, while on the opposite side to the rocker bearing side, A second sub-arm that can be connected to the drive unit may be provided. In a further development, the second sub-arm may comprise the following components:
Screw nut.
A screw rod having a screw nut screw and a screw screw. Here, the outer end of the screw screw engages the complementary inner screw of the first sub-arm.
A sleeve having a lever arm side seat for a spring member and formed as a flange through which a screw rod extends.

  Regardless of whether the configuration of the lever arm is related to the selective configuration (A) or the selective configuration (B), in the adhesive application head according to the present invention, the drive unit and the lever arm suspension are provided. They may be connected so as to have a functional interaction while being substantially insulated from one another by a thermal decoupling device.

  The thermal insulation device comprises an insulation plate disposed between the drive and the lever arm suspension, and at least two cable tensioning devices connecting the drive and the lever arm suspension to each other. And may be provided.

  The cable tensioning device may comprise a spacer / positioning bolt and a tensioning cable disposed between the drive and the lever arm suspension. The tension cable extends through the spacer / positioning bolt, one end of which is anchored by the drive side anchoring of the drive, while the other end of the lever arm suspension. You may comprise so that it may fix to a lever arm member side fixing | fixed part (anchoring).

  The present invention is particularly suitable for application to thermoplastic or hot melt adhesives. However, the present invention is also suitable for application to, for example, aggressive types of glue and cold glue.

  In the following, details and advantages of the present invention will be described in detail by means of exemplary embodiments with appropriate reference to the drawings. All drawings are schematic and are not drawn to scale. Also, in the different drawings, the same reference numerals are used for corresponding elements, even if the details are different.

FIG. 1 is a schematic perspective view of a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a further embodiment of the present invention according to the selective configuration (A). FIG. 3A is a plan view of a membrane in a further embodiment of the present invention according to selective configuration (A). FIG. 3B is a perspective cross-sectional view of a membrane suspension in a further embodiment of the present invention according to selective configuration (A). FIG. 4 is an enlarged schematic cross-sectional view of a further embodiment of the present invention according to the selective configuration (A). FIG. 5 is a schematic cross-sectional side view of a further embodiment of the present invention according to the selective configuration (A). 6 is a schematic cross-sectional view of a further embodiment of the present invention according to the selective configuration (A) based on the embodiment shown in FIG. 2, in which the control module and the control circuit are schematically shown. It is shown. FIG. 7 is a schematic cross-sectional view of a further embodiment of the present invention according to the selective configuration (A). FIG. 8 is a schematic cross-sectional view of a further embodiment of the present invention according to the selective configuration (A). FIG. 9 is a schematic cross-sectional view of a further embodiment of the present invention according to the selective configuration (A). FIG. 10 is a schematic diagram of a further embodiment of the present invention according to a selective configuration (A) comprising a membrane according to the selective configuration (A). FIG. 11 is a perspective view of a further embodiment of the present invention according to a selective configuration (A) comprising a membrane according to the selective configuration (A). FIG. 12 is a perspective view of a further embodiment of a membrane according to selective configuration (A). FIG. 13 is a first perspective view of a further embodiment of the present invention according to the selective configuration (B). FIG. 14 is a second perspective view of the embodiment of the present invention shown in FIG. 13 according to the selective configuration (B). FIG. 15 is a schematic cross-sectional view of a further exemplary embodiment of the present invention according to the selective configuration (B). FIG. 16A is a side view partially cut along the line AA in FIG. 13 and FIG. 14 and shown in cross section. FIG. 16A shows the invention according to FIG. 13 and FIG. An embodiment is shown. FIG. 16B is a detailed view of FIG. 16A. FIG. 17 is a cross-sectional view of the embodiment of the invention according to FIGS. 13 and 14 according to the selective configuration (B), taken along the line BB in FIGS. 13 and 14. FIG. 18A is a schematic cross-sectional view of a further embodiment of the present invention according to selective configuration (B). FIG. 18B is a detailed view of FIG. 18A.

  Hereinafter, the principle of the present invention will be described with reference to the first embodiment. FIG. 1 shows an application device 100 (application device) having a plurality of application heads 15 arranged in a row, a nozzle outlet opening 12, and an adhesive supply pipe 16 that can be individually switched. Show. Instead of the nozzle outlet opening 12 as shown in FIG. 1, another form of the outlet opening 12 may be used. The shape, arrangement, and specifications of the outlet opening 12 may be any of a nozzle needle, a needle valve, or a slide as a movable element 11 (movable element) inside the coating head 15. Depends on whether

  Each outlet opening 12 is provided in contact with each coating head 15 or provided therein. Each coating head 15 has a special specification for dispensing a fluid material M, particularly an adhesive, and has a (nozzle) chamber 10 formed in the coating head 15. In the example shown in FIG. 1, the nozzle needle 11 (nozzle needle) can move upward and downward inside the (nozzle) chamber 10. The nozzle needle 11 is arranged in such a manner that the outlet opening 12 is opened by the movement P of the nozzle needle 11 in the opening direction. In FIG. 2, the arrow P is upward. Movement P in the opening direction of the nozzle needle 11 indicated by the arrow P raises the nozzle needle 11 and opens the outlet opening 12, so that the material M flows out of the nozzle chamber 10 through the outlet opening 12. it can. In FIG. 1, four application heads 15 distribute material M simultaneously and permanently in the form of strip-shaped webs or beads. The band-like shape is caused, for example, by the passage or movement of a paper fiber K (paper web), a workpiece or a substrate. The corresponding movement direction is indicated by V.

  FIG. 1 shows an optional component multichannel control module 50. The control module 50 is connected to the drive unit 20 via a control connection 52 for control. The control connection 52 is sometimes referred to as a control-technology operative connection. This control module 50 can be used in all embodiments of the present invention.

  A material supply passage 13 connected to the (nozzle) chamber 10 is provided inside the coating head 15 (see, for example, FIG. 2). The material supply passage 13 is fluidly connected to a material supply pipe 16 (for example, see FIG. 1) in order to introduce the fluid material M into the (nozzle) chamber 10. In FIG. 1, four individual material supply pipes 16 are shown. However, it is also possible to provide one common material supply pipe 16 for the plurality of application heads 15.

  Furthermore, a drive unit 20 is provided to cause the movement P in the opening direction of the nozzle needle 11. In FIG. 1, the drive unit 20 is directly attached to the coating head 15 or is flanged (flanged). The drive unit 20 is configured as an individual drive unit for each coating head 15 so that each outlet opening 12 can be opened or closed individually (that is, independently of the other outlet openings 12). It is preferable to do this.

  For example, an embodiment in which the drive unit 20 as shown in FIG. 2 is disposed apart from the coating head 15 is particularly preferable. However, with respect to the arrangement of the drive unit 20 in relation to the application head 15 (this is merely an explanation of the arrangement), the distance between the two is accurately set and stable. is important. This is important because the change in spacing between the two affects the function or mode of operation of the lever arm 30. Details of the lever arm 30 will be described later.

  Hereinafter, the details of the present invention will be described with reference to another embodiment whose cross section is shown in FIG. FIG. 2 shows a cross section of each coating head 15 in which the driving units 20 are spaced apart (that is, spatially separated). According to the present invention, the coating head 15 includes one lever arm 30 provided for each drive unit 20. A first extremal end 31 of the lever arm 30 is movably attached to a nozzle needle 11 or other movable member rear end 14 and a second extremal end. end) 32 is connected to the drive unit 20. A membrane suspension 33 having a membrane 34 is provided, and the lever arm 30 extends through the membrane 34 of the membrane suspension 33. The membrane suspension device 33 is provided to connect the lever arm 30 to the coating head 15 so as to be movable. Further, the membrane suspension 33 is also used as a seal for preventing the fluid material M from leaking out of the (nozzle) chamber 10. That is, the membrane 34 or the membrane suspension 33 has two functions. Furthermore, the membrane 34 has a protection function against the temperature, corrosion, abrasion and chemical additives of the material M, depending on its specifications.

  The following more detailed description shows the salient features of this embodiment. However, these detailed descriptions are also applicable to all other embodiments. In the (nozzle) chamber 10, a stop point 17 or a stop surface (also referred to as a needle seat) is located in the lower region in the vicinity of the outlet opening 12, respectively. tip) 18 is provided. In FIG. 2, the nozzle needle 11 is shown in a closed position. That is, in this state, the tip 18 of the nozzle needle 11 is firmly seated at the stop point 17 and the material M cannot flow out through the outlet opening 12. When the nozzle needle 11 is raised in the Z-axis direction by the movement P in the opening direction, the outlet opening 12 is immediately opened and the material M can flow out.

  The nozzle needle 11 is movably connected to the lever arm 30 (like a toggle joint) in the region of the rear end 14. The nozzle needle 11 is “dangled” to some extent within the nozzle chamber 10. Since the nozzle chamber 10 and the nozzle needle 11 are configured to be conically rotationally symmetric in the lower region (close to the stop point 17), the nozzle needle 11 is in the Z direction. When moving downward, the nozzle chamber and the center are naturally guided so as to coincide with each other. Furthermore, the material M flowing from the material supply passage 13 through the (nozzle) chamber 10 towards the outlet opening 12 contributes to the stabilization or self-centering of the nozzle needle 11, respectively. . This type of “hanging” attachment or suspension is applicable to all embodiments.

In this embodiment, the lever arm 30 is formed in the form of a flat rectangular shape or a band-shaped rod provided with a hole 39 which is an optional component. These holes 39 are provided for the purpose of reducing the weight of the rod in order to reduce the mass related to the acceleration of the lever arm. Further, the hole 39 allows the attachment point A (attachment point) of the drive unit 20 to be moved or changed. Therefore, when the effective lever arm 30 is thus reduced in weight, the drive unit 20 (or the respective attachment point A) is further moved in the direction of the second end portion 32 and in the opposite direction. It can be moved effectively. In the illustrated embodiment, the drive unit 20 is attached at a position that substantially coincides with the second end 32. That is, the effective length of the lever arm 30 is relatively long. The closer the arrangement position of the drive unit 20 (or each attachment point A) is to the membrane suspension 33, the shorter the effective length of the lever arm 30 becomes. When the effective length of the lever arm 30 is long, a step-down transmission occurs. That is, the large movement P1 causes a small movement P in the opposite direction. In the embodiment shown in FIG. 2, the step-down factor is approximately 5: 1 (ie, the absolute value of movement P1 is approximately five times the absolute value of movement P). If the effective length of the lever arm 30 is short, step-up transmission occurs. That is, a small movement P1 causes a large movement P in the opposite direction.
In all embodiments, it is preferred to employ a decreasing transmission with a step-down factor between 2: 1 and 10: 1. 1: 1 decreasing transmission is particularly preferred.

  However, the lever arm 30 may be any other shape of rod or lever. The lever arm 30 is preferably made of a torsion-resistant material. Furthermore, the lever arm 30 should be as light as possible in order to reduce the moved or accelerated mass associated with its movement or acceleration. In all embodiments, the membrane 34 is used as a kinematic support for carrying / mounting a portion of the mass of the lever arm 30. Further, in all embodiments, the membrane 34 determines the exact pivot point or tilting point of the lever arm 30 (hereinafter referred to as the “virtual pivot axis”). In most embodiments, the lever arm 30 can be configured as a completely “free floating” membrane-mounted lever due to the special membrane mounting. In the embodiment shown in FIG. 7, the lever arm 30 is not completely free floating and is rotatably mounted.

  In the embodiment shown in FIG. 2, a cylindrical rod 40 (cylindrical rod) is provided on the lever arm 30 in order to allow the lever arm 30 to be attached or held to the membrane suspension 33. The cylindrical rod 40 pinches or clamps the membrane 34, thereby suspending the lever arm 30 from the membrane 34. FIG. 4 shows a typical preferred arrangement in detail. This type of suspension can be applied to all embodiments.

  2 and 4 show an embodiment in which the membrane 34 can have one or two sealing rings 35. The seal ring 35 enables the membrane 34 to be elastically clamped in the application head 15. The seal ring 35 is an optional component. For such clamping, the application head 15 may be provided with a removable part or lid (not shown in FIG. 2). In FIG. 7, this clamping is performed, for example, between the part or member 19.1 and the housing 19. When this part or lid is removed, the membrane 34 with the optional seal ring 35 can be inserted. After this, the part or lid is reinstalled and the membrane 34 is clamped.

  According to FIG. 4, it can be seen that a pressure support 38 (pressure support) as an optional component is provided on the rear side of the membrane 34, that is, on the side facing away from the (nozzle) chamber 10. The pressure support 38 functions as a mechanical stop for the membrane 34. This preferred embodiment prevents overstretching of the membrane 34 when the pressure in the nozzle chamber 10 is excessively increased. In all embodiments, the membrane 34 is preferably constructed and arranged so that it is only strained by bending to extend its useful life. Instead of the pressure support portion 38, a support portion 23 (support) according to an embodiment (see FIGS. 7 to 12) described further below may be used. The pressure support portion 38 and the support portion 23 may be combined.

  In various embodiments, the metal film 34 is preferably used as the film 34. The metal film 34 is particularly suitable for changing the load at a high frequency. Here, as the metal film 34, a film 34 in which the entire film surface is formed of metal, or a metal layer / metal vapor deposit layer on a planar (for example, plastic) film substrate. For example, the film 34 provided with.

  In all embodiments, the metal film preferably includes an alloy of a transition metal.

  Further, according to FIGS. 2 and 4, the downward movement P <b> 1 (counter movement) caused by the driving unit 20 causes an opposite opening movement P (opposing opening movement) of the nozzle needle 11. I understand. Thus, the lever arm 30 sets the transmission characteristics in the decreasing direction or increasing direction, and reliably reverses the moving direction.

  FIG. 3A shows a preferred embodiment of membrane 34 in detail. The membrane 34 is provided with a plurality of slots 36 to increase its elasticity. The membrane 34 is further provided with a central opening 37 and the lever arm 30 extends through the central opening 37 in the installed state. In FIG. 3A, the location of one or more seal rings 35 is shown. Such a specification is particularly appropriate when the film 34 is a metal film 34, which allows the metal film 34 to have the desired elasticity and, if necessary, a non-linear movement function. function) can be pre-defined.

  Due to the characteristic shape of the slot 36 formed in a nearly perfect circle, two small narrow portions 42 (web) are formed at the 3 o'clock position and the 9 o'clock position. These two small constrictions 42 allow the inner portion 41 of the membrane 34 (ie, the circular region 41 of the membrane 34 delimited radially from the outside by the slot 36) to bend. In other words, the two small narrow portions 42 connected to the inner portion 41 of the film 34 set a virtual pivot axis (VA) of the inner portion 41. In FIG. 3A, this virtual turning axis VA is indicated by a one-dot chain line.

  FIG. 3B shows details of a preferred embodiment of the membrane suspension 33. In FIG. 3B the fastening of the lever arm 30 to the membrane 34 is shown. The lever arm 30 is fastened by the rod 40 as shown. In the embodiment shown in FIG. 3B, the inside of the rod 40 is hollow in order to reduce its weight. In order to prevent the material M from leaking through the inside of the rod 40, the rod 40 may be provided with caps 43 or sealing elements at both ends, for example. FIG. 3B also shows the position of the virtual turning axis VA. The detailed configuration shown in FIG. 3B can be applied to all the embodiments.

  FIG. 5 shows details of a further embodiment of the invention. In this embodiment, the arrangement of each component is set to be different from that of the above embodiment, but the function is the same as that of the above embodiment. The linear movement of the drive unit 20 is converted into an opening direction movement of the nozzle needle 11 disposed inside the coating head 15. As shown in FIG. 2, in this embodiment as well, the drive unit 20 is disposed separately (that is, separated) from the coating head 15.

In various embodiments described herein, the drive unit 20 includes:
An electromagnetic drive that operates electromagnetically;
A pneumatic drive that operates aerodynamically, or a piezoelectric drive that operates with a piezoelectric effect.
Here, the drive unit 20 generates a linear movement P1 (upward and downward movement) corresponding to the desired frequency. This movement P1 is relayed by a lever arm 30 that operates effectively with a step-down or step-up transmission to the nozzle needle 11 and the linear movement of the nozzle needle 11. A movement P is generated. However, in the case of the piezoelectric drive unit 20, in order to convert a very small movement of the piezoelectric drive unit 20 into a sufficiently large opening / closing movement P, an incremental step-up transmission is used. preferable.

  The electromagnetic drive 20 constructed using the principle of a voice coil motor or a Lorentz coil has proved itself particularly effective (proven itself). In this case, a lever transmission ratio of 1: 1 or a diminishing movement transmission is particularly preferred as an effective transmission ratio. A voice coil motor or Lorentz coil can be used in all embodiments.

  The voice coil driving unit 20 has an advantage that the power can be turned off (de-energized) in an idle state, that is, an advantage that power consumption is reduced as compared with a conventional coating head.

  The stroke of the nozzle needle 11 in the Z-axis direction in the region of the nozzle tip 18 or the outlet opening 12 is preferably 0.1 mm to 1 mm. If the lever transmission ratio is 1: 1, the drive 20 must produce a corresponding movement P1 in the opposite direction with a stroke of 0.1 mm to 1 mm.

  As shown by way of example in FIG. 5, with a suitable controller of the drive unit 20, for example, a drive module 21 and / or a control module 50 (which can be arranged in the vicinity of the drive unit 20) With the control module, the movement of the nozzle needle 11 or other movable member can be set (set) or controlled (regulate). If desired, the controller may store information on an appropriate moving profile that causes the nozzle needle 11 to decelerate somewhat before it hits the stop point 17. This technique extends the useful life of the nozzle needle 11 and the coating head 15. A corresponding drive module 21 and / or control module 50 can be used in all embodiments.

  The larger the step-down translation ratio (lever step-down translation ratio), the more accurately the nozzle needle 11 can be moved. This is because the large movement P1 of the drive unit 20 is stepped down to the small movement P of the nozzle needle 11. However, a problem when the gradual lever transmission ratio is large in this way is to increase the moving distance that must be set on the drive unit side. Thereby, the frequency (achievable frequency) or maximum cycle (maximum cycle) at which the opening and closing movement of the nozzle needle 11 can be performed is considerably reduced.

  In a preferred embodiment, on the drive side, an intelligent controller (eg in the form of drive module 21 and / or control module 50) of drive unit 20 monitors the current supplied to drive unit 20. It is arranged in such a way that it can be observed. If the current increases, this indicates that the nozzle needle 11 or the movable member is located at the stop point 17. Performing the gradual adaptation of the movement profile stored in the drive module 21 that can be defined in all embodiments by the parameterization by the intelligent control module 50 Can do. This compensates for wear of the needle tip 18. Thus, when the current signal only indicates that an increase in current has occurred after that, the movement P1 on the drive side is continuously increased. The occurrence of a subsequent increase in current means in particular that the needle tip 18 is positioned at the stop point 17 later than before. This indicates the occurrence of wear. By using such an intelligent controller (for example in the form of the drive module 21 and / or the control module 50), the service life of the application head 15 can be increased. This is because the replacement of the nozzle needle 11 or the movable member can be delayed.

  In a preferred embodiment, on the drive side, an intelligent controller (for example in the form of drive module 21 and / or control module 50) of the drive unit 20 has a movement configuration in which the movement of the nozzle needle 11 or the movable member is preset. They are arranged in such a manner that they are controlled according to (for example, P1 (t, -Z)). The switching times and strokes of the nozzle needle 11 can be monitored and the application pattern of the application head 15 can be automatically corrected by the control module 50.

  The drive module 21 and / or the control module 50 are preferably arranged directly on each drive unit 20 so that the drive unit 20 can be driven directly using 24 VDC signals (directly by the PLC) ( The PLC may be a programmable logic controller). In this case, there is an advantage that each coating head 15 can be driven individually. A corresponding drive module 21 and / or control module 50 can be used in all embodiments.

  In a preferred embodiment, in such a manner that the intelligent controller of the drive unit 20 outputs errors, warnings, service or maintenance indications to the drive side. Arranged. In order to achieve this purpose, the control module 50 is appropriately mounted and / or programmed. This approach can be used in all embodiments.

  One advantage of the present invention is that it is possible to perform spatial thermal separation between a portion of the application head 15 and the drive unit 20 in the surrounding region where the material M flows. It is. In particular, in the case of the material M having a temperature higher than normal temperature (warm) or high temperature (hot), a problem occurs on the drive unit side due to the high temperature except for the present invention. The problem can be reduced.

  In all preferred embodiments, the lever arm 30 causes a reversal of the direction of travel (eg, P1 is in the opposite direction to P as shown in FIG. 2), and the set length of the lever arm 30 In response, the amount of movement of the nozzle needle is increased (P> P1; referred to as step-up transmission) or decreased (P1> P; referred to as step-down transmission). Is generated). Further, by arranging the lever arm 30 in an angled state with respect to the movable member 11, the film 34 is arranged in a region not directly related to the flowing material M. It becomes possible.

  The present invention allows for the application of a custom and accurate adhesive. The present invention does not matter whether the glue process is cold or hot, whether it is based on distance or time, or whether the substrate speed is constant or variable. Regardless of this, it can be used in an electromagnetic, electronic / aerodynamic, piezoelectric or electromechanical coating head 15.

  The control module 50 (also referred to as a coating controller) can be incorporated directly into the apparatus (eg, in the melting apparatus) or can be provided as a separate unit. As shown in FIG. 1, according to the present invention, it is also possible to control and monitor a plurality of application heads 15 by one common (multi-channel) control module 50.

  FIG. 6 shows a schematic cross-sectional view of a further embodiment of the invention based on the embodiment shown in FIG. 2, in which the detailed configuration of the control module 50 and the control loop is schematically shown. Therefore, reference should be made to the description relating to FIG. Only the essential aspects of the drive and control loop will be described below. All embodiments of the present invention comprise a control loop having a sensor 53 (eg, an inductive sensor) and a control module 50 (which detects distance or position). The sensor 53 is configured to detect the position (actual position) of the movable member 11 every moment. In FIG. 6, the sensor 53 (detecting the distance or position) is schematically shown. The sensor 53 can also be arranged at other positions. The sensor 53 (detects a distance or a position) is connected to an input unit of the control module 50 via a connection unit 55 (connection), and transmits actual position information to the control module 50. Based on the control data, the control module 50 determines whether a readjustment or correction is necessary by comparison with the actual position.

  In the embodiment shown in FIG. 6, an optional component between the control module 50 and the drive unit 20 in order to form a control connection between the control module 50 and the drive unit 20. A drive module 21 is provided. The drive module 21 can receive parameters from the control module 50 and convert them into current or voltage variables (as control variables) applied to the drive 20. The control module 50 can also be connected directly to the drive 20 for control (eg, by a control connection 52 as shown in FIG. 1).

  In all embodiments, the parameters are preferably retrieved from the parameter memory 54 and transmitted by the control module 50 to the optional drive module 21. Thereafter, the drive module 21 converts these parameters into control variables. However, it is also possible for the control module 50 to process further parameters in order to transmit further processed parameters to the drive module 21 thereafter. Further processing of the parameters depends, for example, on the specific configuration and can take into account increasing or decreasing transmission factors.

  In the following, details of a further embodiment whose cross section is shown in FIG. 7 will be described. The embodiment shown in FIG. 7 is based on the principle of the embodiment shown in FIG. Therefore, reference should be made to the description relating to FIG.

  FIG. 7 shows a cross-section of a part of one coating head 15 in which the drive unit 20 is spaced apart (that is, spatially separated). In FIG. 7, the drive unit 20 is shown in a very schematic form. Movement technology coupling between the drive unit 20 and the lever arm 30 is achieved by a so-called drive coupling unit 22 (drive coupling). In all embodiments, it is preferred that the connecting rod functions as the drive connection 22. It is particularly preferred that the connecting rod is made of a thin material that can itself bend slightly. This is important because the movement transmission of the drive side movement P1 to the lever arm 30 is not strictly a linear movement but follows a slightly curved movement path.

  In this embodiment, the coating head 15 has a first end 31 (first extremal end) movably connected to the rear end 14 of the nozzle needle 11 or other movable member, while the second end 32 ( The second extremal end includes a lever arm 30 connected to the drive unit 20 via a drive coupling 22 from the viewpoint of movement technology. A membrane suspension 33 having a membrane 34 is used, and the lever arm 30 extends through the membrane 34 of the membrane suspension 33. The membrane suspension 33 is used in particular to connect the lever arm 30 to the coating head 15 so as to be movable. In particular, in the embodiment shown in FIG. 7, the membrane suspension 33 functions as a seal for preventing the fluid material M from leaking out of the (nozzle) chamber 10. That is, the membrane 34 or the membrane suspension 33 has two functions. Furthermore, the membrane 34 has a protective function against the temperature, corrosion, abrasion and chemical additives of the material M, depending on its configuration. The embodiment shown in FIG. 7 is characterized in that, in addition to the mounting in the membrane 34, the lever arm 30 is mounted around a pivot point or a tilting point 49. To do. The turning point or tilting point 49 defines a virtual axis VA (define). As shown in FIG. 7, the lever arm 30 has a corresponding recess so that the lever arm 30 can be placed or inserted into a pivot point or tilt point 49.

  In the embodiment shown in FIG. 7, the lever arm 30 preferably has a spherical region 30.1 (circular region) and a circumferential annular member 30.2 (circumferential collar). The membrane 34 is clamped between the spherical region 30.1 and the circumferential annular member 30.2. The membrane 34 is preferably clamped or braced at the outer membrane peripheral region between the plate, cover or counterpiece and a portion of the housing 19. The membrane 34 can be elastically deformed between the “outer clamp part” and the “inner clamp part”, which deformation is preferably the spherical region 30.1 and the circumferential annular member 30. .2 between. The advantage of providing an “outer clamp part” and an “inner clamp part” is that a good seal against leakage of material M from the chamber 10 is ensured. In addition, the spherical region 30.1 of the lever arm 30 prevents pressure from excessively pressing the membrane 34 to the left due to the high pressure of the material M in the chamber 10 or pressure support to prevent the membrane 34 from tearing. Functions as a pressure support.

  In the following, further details of the embodiment shown in perspective view in FIG. 8 will be described. The embodiment shown in FIG. 8 is based on the principles in the embodiments already shown and described. Therefore, reference should be made to the previous description.

  FIG. 8 shows a part of one coating head 15 in which the driving units 20 are arranged apart from each other (that is, spatially separated). In FIG. 8, the drive unit 20 is only shown in a very schematic form. Movement technology coupling between the drive unit 20 and the lever arm 30 is achieved by so-called drive coupling 22 (drive coupling). In these embodiments as well, the connecting rod preferably functions as the drive connection 22. In particular, this connecting rod is preferably made of a thin material that allows itself to be somewhat curved.

  8, the first end 31 of the coating head 15 is movably connected to the rear end 14 of the nozzle needle 11 or other movable member, and the second end 32 of the application head 15 is driven and connected by a moving technique. A lever arm 30 connected to the drive unit 20 via 22 is provided. A membrane-type suspension device 33 having a membrane 34 is used. Here, the lever arm 30 extends through the membrane 34 of the membrane suspension 33. The membrane suspension 33 is used in particular to connect the lever arm 30 to the coating head 15 so as to be movable. Further, the membrane suspension 33 also functions as a seal for preventing the fluid material M from leaking out of the (nozzle) chamber 10 (the chamber 10 is not shown in FIG. 8). . Furthermore, the membrane 34 is provided with or attached to a so-called support 23 (support). The support portion 23 is preferably configured or connected so as to contact the membrane 34. As a result, the support 23 on the one hand reinforces or stabilizes the membrane 34. On the other hand, the support 23 is intended to define the mobility of the membrane 34 or the mobility of the membrane suspension 33 as a whole.

  In a preferred embodiment, the movement in a closed direction (downward movement of the nozzle needle 11 or other movable member) is accelerated or reinforced by a membrane 34 that cooperates with the support 23 to nonlinear movement. movement) is preset (predefined). As a result, the tip of the nozzle needle 11 can be made to reliably perform a stable impact as set against the stop point 17 (which cannot be identified in FIG. 8). This is important in optimizing material M tearing. Thereby, further, a sufficient pressing force of the tip end portion 18 of the nozzle needle 11 can be preset with respect to the stop point 17 (predefine). When opening the outlet opening 12 (which cannot be identified in FIG. 8), that is, when moving the nozzle needle 11 upward, a more gentle movement profile can be used.

  The support 23 can define the mobility of the membrane 34 or the membrane suspension device 33 as a whole. Here, the support part 23 is provided with a pin 24 in its lower region, and the pin 24 can be fastened to the support part 23 by a clamp 25 (clamp). As an arbitrary configuration, the pin 24 may be guided in a guide portion of a housing 19 (not shown).

  As shown in FIG. 9, in an alternative embodiment, the support 23 is fixed in the lower region by a housing clamp 26 (housing clamp). In other respects, all components of the embodiment shown in FIG. 9 are the same as those of the embodiment shown in FIG. Therefore, reference should be made to the description relating to FIG.

  In all embodiments, the support 23 is preferably made of a thin, essentially flexible but stable material. The support part 23 may be a metal or plastic support part 23. In all the embodiments, the thickness of the support portion 23 is preferably 0.1 mm to 0.15 mm.

  In all embodiments, the membrane 34 preferably has a thickness of 0.08 mm to 0.15 mm.

  In all embodiments, preferably the lever arm 30 has two parts or parts, or consists of a plurality of parts. The lever arm 30 may include, for example, a rocker 30.4 (rocker) and a sleeve 30.3 (sleeve) (see FIG. 8 or FIG. 9). After this, the membrane 34 can be clamped or clamped between the rocker 30.4 and the sleeve 30.3 (FIGS. 2, 4, 6A, 7, 8, 8). FIG. 10).

  In all embodiments, the lever arm 30 is preferably driven with means that allow a movement-technology connection to the drive 20, preferably via drive coupling 22. It is provided at the side end portion 32 (drive-side end). In particular, clamping means or screw means 27 as shown in FIGS. 5, 7, 8, and 9 are preferred.

  The problem to be solved by the present invention can be advantageously solved especially by the solutions according to FIGS. This is due to the fact that the membrane 34 can typically only absorb a small closing force. In order to achieve good cutting of the adhesive (cutting of material), it is advantageous to make the tip 18 of the nozzle needle 11 collide with the valve seat 17 (stop point). To prevent the movable member or nozzle needle 11 from rebounding, a relatively large force must be applied for closure. This force can be absorbed particularly well according to the membrane suspension described with reference to FIGS.

  In all the embodiments, the support portion 23 can be formed separately from the membrane 24 or can be formed integrally.

  In the illustrated embodiment, the membrane 34 has a basic shape that is basically circular or oval, but may have a different basic shape.

  The film | membrane 34 may have a shape as shown in FIG. 10, for example. The film 34 shown in FIG. 10 has a support portion 23 formed integrally therewith. That is, they are formed as a single member. In the region of the support 23, as an optional component, a hole 23.1 for firmly attaching or fixing the pin 24 can be provided. In addition, you may comprise so that the hole 23.1 may not be provided in the area | region of the support part 23. FIG. In this case, for example, as shown in FIG. 9, the lower region of the support 23 can be clamped on or in the housing 19 in a housing clamp 26 (housing clamp).

  In all embodiments, the membrane 34 may be formed as a seal and may include a sealing ring 35 that provides elastic clamping of the membrane 34 within the application head 15 (eg, , Between component 19 and component 19.1).

  In the embodiment shown in FIGS. 8 and 9, the membrane 34 or the membrane suspension 33 has a plurality of functions. These are used as seals, define a virtual tilt axis or pivot axis VA, and predefine a movement function, preferably a non-linear function.

  FIG. 11 shows a perspective view of a further embodiment of the membrane 34. In this embodiment, the membrane 34 has an oval shape which is a particularly preferable shape. In addition to the oval membrane 34, other shapes of membranes 34 described herein or in the drawings can also be clamped in a flat holder or clamping setup, or Can be positioned. However, as shown, for example, in FIG. 11, the membrane 34 of various embodiments can also reinforce its edge region 34.1.

  FIG. 11 shows details of a possible embodiment of the lever arm 30. A means for movably attaching the lever arm 30 to the movable member 11 can be provided at the first end 31 of the lever arm 30. As shown in FIG. 11, these means comprise a slot 31.1 (slot) and a hole 31.2 for passing through a pin 14.1 (eg shown in FIGS. 8 and 9). Yes. The upper end 14 of the movable member 11 can be inserted into the slot 31.1 and fixed by the pin 14.1. As shown in FIG. 11, in all embodiments, the first end 31 of the lever arm 30 is preferably formed in a fork-shaped manner.

  FIG. 12 shows a perspective view of a further embodiment of the membrane 34. In this embodiment, the membrane 34 comprises a particularly preferred so-called joint 34.2 (Sicken). The membrane 34 with the seam 34.2 can be fixed or placed in a flat holder or clamping setup. However, as shown for example in FIG. 12, the membrane 34 according to FIG. 12 can also reinforce the edge 34.1. At the edge 34.1, a hole 34.3 or other attachment means can be provided to better secure or clamp the membrane 34 within the application head 15.

  The joint 34.2 is preferably formed concentrically with the central opening, and the lever arm 30 extends through the central opening in its mounted state.

  The joint 34.2 is preferably dome-shaped.

  Furthermore, depending on the configuration of the membrane 34, the membrane 34 may also have a protective function against the temperature, corrosiveness, abrasion and chemical additives of the material M. .

  FIG. 13, FIG. 14, FIG. 16A, FIG. 16B and FIG. 17 show a first embodiment of the present invention according to a selective configuration (B), that is, a lever formed as a rocker mounting 133. Fig. 3 shows an arm suspension. FIG. 15 shows a schematic cross-sectional view of a second exemplary embodiment of the rocker fixture 133 according to the selective configuration (B).

  FIG. 13, FIG. 14, FIG. 16A, FIG. 16B and FIG. 17 corresponding to the first embodiment and FIG. 15 corresponding to the second embodiment, a lever arm suspension device formed as a rocker attachment 133 Includes a lever arm 130 connected to the movable member 111 and the driving unit 20, a plate member 160 having an opening 162 through which the lever arm 130 extends, and a lever arm 130 movably connected to the plate member 160. And a seal device 180 configured to prevent the adhesive from leaking out of the chamber 10 through the opening 162 of the plate member 160. The lever arm 130 is movable by the rocker mounting device 140 in such a manner that the movement P1 (see FIG. 16A) on the drive unit 20 side is converted into the opening direction movement P (see FIG. 16A) of the movable member 111. It is attached.

  As shown in FIGS. 15 to 17 for the first or second embodiment, the rocker mounting device 140 includes a rocker member 142 and correspondingly associated first and second support devices 152 and 154. I have. The rocker member 142 is rigidly connected to the lever arm 130 and has a longitudinal direction 144 and first and second mounting points 146 and 148 (mounting points). The first and second support devices 152, 154 are disposed at portions of the rocker bearing side of the plate member 160 to support the first and second attachment points 146, 148 associated therewith. It is configured. The longitudinal direction 144 of the rocker member 142 extends substantially perpendicular to the lever arm 130 in a plane parallel to the spreading surface of the plate member 160 (in the paper plane in FIGS. 15 and 17). The first and second attachment points 146 and 148 (bearing points) are spaced apart from each other along the longitudinal direction 144. The first and second support devices 152 and 154 are formed as first and second spheres 153 and 155 (ball). The plate member 160 has first and second recesses 164 and 166 formed as plate-member-side ball seats 165 and 167 (plate-element-side ball seats), respectively, at portions on the rocker support side. . The rocker member 142 includes first and second recesses 156 and 158 formed as rocker-element-side ball seats 157 and 159 (rocker-element-side ball seats) at portions facing the plate member 160, respectively. Have.

  The diameters of the plate member side recesses 164 and 166 are preferably set to be approximately 0.1 mm larger than the diameters of the spheres 153 and 155. As a result, the spheres 153 and 155 in the plate member-side recesses 164 and 166 are present on the adhesive film when the adhesive application head 115 provided with the locker attachment 133 is in operation. Further, the first and second spheres 153 and 155 are pressed in the respective rocker member side sphere seats 157 and 159 (shown in FIGS. 15 and 17).

  In an alternative configuration of the first and second embodiments (not shown), the first and second spheres 153, 155 are respectively connected to the first and second plate member side sphere seats 165, 167, respectively. It is pressed. It is preferable that the diameter of each rocker member side recessed part 156,158 is 0.1 mm larger than the diameter of the spherical bodies 153,155. In this case, the spheres 153 and 156 in the rocker member side recesses 156 and 158 exist on the adhesive film when the apparatus is in operation.

  As shown in FIGS. 15 to 17, the sealing device 180 includes an O-ring 172 disposed on the side of the rocker member 142 around the opening 162. Thus, the plate member 160 has the plate member side O-ring seat 173 surrounding the opening 162 on the side facing the rocker member 142. On the other hand, the rocker member 142 has a rocker member side O-ring seat portion 143 corresponding to the plate member side O-ring seat portion 173 on the side facing the plate member 160.

  In the first embodiment shown in FIGS. 16A, 16B and 17, the plate member side O-ring seat 173 is a flange 173.1 formed at the rocker member side outlet of the opening 162. The flange 173.1 is formed around the opening 162, and supports the first contact surface 173.2 parallel to the spreading surface (plane) of the plate member 160 and the outer peripheral surface of the O-ring 172. And a second abutting surface 173.3 having the shape of a cylindrical inner peripheral wall configured as described above. The rocker member side O-ring seat 143 is formed as a flange 143.1. The flange 143.1 is formed on the side of the rocker member 142 facing the plate member 160. The flange 143.1 is a shape of a cylindrical outer peripheral wall configured to support a first abutting surface 143.2 parallel to the spreading surface (plane) of the plate member 160 and an inner peripheral surface of the O-ring 172. And a second abutment surface 143.3.

  As shown in FIGS. 15 to 17 related to the first and second embodiments, the rocker fixture 133 further includes a spring member 180. The spring member 180 functions to pre-tension the rocker member 142 in the direction of the plate member 160 and the attachment points 146 and 148. The spring member 180 is formed as a spiral spring 182 and is disposed around the lever arm 130 on the side of the plate member 160 opposite the rocker bearing side. As shown in FIGS. 16A, 16B, and 17, the plate member 160 has a plate member side seat 184 disposed around the opening 162 for the spring member 180 at a portion opposite to the rocker support side. (Plate-side seat). The lever arm 130 has a lever-arm-side seat 186.2 (lever-arm-side seat) for the spring member 180 formed as a flange 186.1 on the outer side of the drive-side end. doing.

  Further, as shown in FIGS. 15 to 17 related to the first and second embodiments, the lever arm 130 is composed of two parts or parts. The lever arm 130 has a first sub-arm 136 (sub-arm) that can be connected to the movable member 111 at a site on the rocker support side, and a connecting rod at a site opposite to the rocker support side. A second sub-arm 138 (sub-arm) that can be connected to the drive unit 20 via 122 is provided.

  The second sub arm 138 is composed of four parts: a screw nut, a screw nut, a screw rod, a sleeve 186 ( sleeve). The screw rod 138.2 has a screw nut thread 138.3 (screw nut thread), a lock nut thread 138.5 (lock nut thread), and a screw thread 138.4 (screw thread). The lock nut 138.7 is screwed with the lock nut screw 138.5. Screw nut 138.1 is screwed with screw nut screw 138.3. Between the lock nut 138.7 and the screw nut 138.1, one end of the connecting rod 122 provided with a through hole () is plugged into the screw rod 138.2, and the screw nut 138.1 is connected to the lock nut 138.1. It is secured to this site by tightening against 138.7.

  The first sub-arm 136 has an inner screw 136.1. This inner thread 136.1 is complementary to the screw thread 138.4 of the screw rod 138.2 and is configured to receive the screw thread 138.4. Here, the outer end of the screw screw 138.4 engages the complementary inner screw 136.1 of the first sub-arm 136.

  The sleeve 186 is disposed on the side (drive unit side) of the plate member 160 on the side opposite to the rocker member side, is plugged into the screw rod 138.2, and is in contact with the lock nut 138.7. (Impact). The sleeve 186 has a flange 186.1 that functions as a lever arm side seat 186.2 for the spring member 180 at the stop side. Screw rod 138.2 extends through sleeve 186. On the drive unit side, an annular stop 184 (annular stop) is formed in the opening 162 of the plate member 160. This annular stop 184 functions as a plate side seat 184 for the helical spring 182.

  In the portion of the plate member 160 on the drive unit side, the opening 162 is substantially funnel-shaped.

  According to the above description of the first or second embodiment according to the selective configuration (B) shown in FIGS. 13 to 17, the rocker mounting device for movably connecting the lever arm 130 to the plate member 160. 140 substantially functions by “ball mountings” achieved by the first and second spheres 153, 155. Here, the pivot axis for the lever arm extends along the direction from the first sphere to the second sphere. The spheres 153 and 155 absorb the compressive force of the adhesive. The plate member 160 is fixedly attached in the adhesive application head 115. The lever arm 130 acts as a “rocker” with an amplitude of about +/− 0.2 mm (the order of magnitude of about +/− 0.2 mm), and the stroke of the movable member 111 (piston rod). The opening movement P is executed (execute).

  The sealing device 170 formed as an O-ring 172 on the side of the ball mounting is filled with a pressurized adhesive against the external space under atmospheric pressure when the adhesive application head 115 is in operation. The chamber 10 to be a pressure chamber is dynamically sealed. In this case, the load is not uniformly applied to the O-ring 172 along the peripheral edge portion as usual. However, when the movable member 111 moves in each stroke or each rocker movement of the lever arm 130, the cross section of the O-ring is gently squeezed. As can be seen from FIG. 16A, in the stroke movement of the movable member 111 along the opening direction movement direction P in which the movable member 111 is opened, the O-ring 172 moves upward in FIG. 16A (ie, in the detailed view of FIG. 16B). On the opposite side, the load is unloaded on the opposite side. In the stroke movement of the movable member 111 in the direction opposite to the arrow P in FIG. 16A (that is, downward in FIG. 16A), the O-ring 172 shown in FIG. 16A is narrowed on the lower side in FIG. Is removed.

  The helical spring 182 pulls the spheres 153, 155 into the seats in the plate member 160 or the first and second support devices 152, 154. This is particularly necessary when the pressure in the chamber 10 (adhesive pressure) is low. The diameters of the first and second support devices 152 and 154 (sphere seats) in the plate member 160 are set larger than the diameters of the corresponding spheres 153 and 155, but are set to be about 0.1 mm larger. Is preferred. Accordingly, during operation of the adhesive application head 115, the spheres 153 and 155 can be mounted on the adhesive film and moved. The spheres 153 and 155 are pressed in the rocker member 142. However, if the diameter of each sphere seat is set larger than the diameter of the sphere provided in the rocker member and each sphere is pressed in the plate member, this mounting is It may be of a different configuration (not shown).

  In the plate member 160, a second O-ring 168 that is uniformly or statically loaded is inserted into a portion on the rocker member side. The second O-ring 168 seals the plate member 160 to the chamber housing 19 and is used to compare the rocker fixture 133 to the plate member 160 in FIG. 18A attached to the housing 19.

  Compared to the configuration of the membrane suspension 33 according to the selective configuration (A) (see FIGS. 2 to 4 and FIGS. 6 to 12), the lever as the rocker attachment 133 according to the selective configuration (B) The advantages of the configuration of the arm suspension are as follows. That is, the adhesive pressure is absorbed through the spheres 153 and 155. The pivot axis of the lever arm 160 is appropriately defined by a ball mounting. In contrast to the situation with the membrane 34 having a non-linear or constant spring constant, the force during the deflection of the lever arm 130 (the “rocker” mentioned above) Always remains the same. The seal against the pressure chamber or the outer space of the chamber 10 can be formed by a standard element, ie an O-ring 172. This should be necessary when the stroke movement is large and therefore the deflection of the lever arm 130 is large, the sealing device 170 formed as an O-ring 172 is in the form of a special seal, possibly a sleeve. A seal (not shown) may be replaced.

  In a lever arm suspension formed as a membrane suspension 33 in which the pressure chamber seal with respect to the external space is only formed by the membrane 34 itself, if a rupture of the membrane 34 occurs, the chamber 10 will Sudden massive leakage or drainage of adhesive to the surface will occur. In contrast, in the form of a lever arm suspension as a rocker fixture shown in FIGS. 13-18A, 18B, such a sudden leak cannot occur.

  The lever arm suspension fixture formed as a rocker fixture 133 in the adhesive film application head is more structured because the position of the lever arm 130 (of the “rocker”) is uniquely defined. Is simple. Eventually, the rocker fixture is constructed with essentially common parts (not the special membrane 34), so it can be made cheaper overall.

  18A and 18B show a further embodiment of the present invention according to alternative configuration (B) with a lever arm suspension configured as a rocker fixture 133. A special feature of this embodiment is that the drive unit 20 and the coating head 115 are insulated from each other. The principle of thermal separation between the drive unit 20 and the application head 115 shown in FIGS. 18A and 18B is in the form of a lever arm suspension as the membrane suspension 33 according to the selective configuration (A). Is also suitable.

  The insulation between the drive 20 and the application head 115 is abutting flat against the outer surface of the housing 19 around the chamber 10 and the exterior surface of the drive 20 housing. ), Or possibly by external surfaces joined together by a screw connection, possibly a possible heat conduction cross between the drive 20 and the application heads 15, 115. -sections) or contact surfaces. This insulation means is as small as possible and is formed without the use of screw connections by means of a thermal decoupling device 190 shown in the cross-sectional view of FIG. 18A and the enlarged cross-sectional view of FIG. 18B. Is done.

  The heat insulating device 190 includes at least two cable tensions that connect the heat insulating plate 192 disposed between the drive unit 20 and the lever arm suspension devices 33 and 133 and the drive unit 20 and the lever arm suspension devices 33 and 133, respectively. Device 194 (cable tension device). Each cable tensioning device 194 includes a spacer / positioning bolt 196 disposed between the drive unit 20 and the lever arm suspension devices 33, 133, and a tension cable extending through the spacer / positioning bolt 196. 198 (tension cable). Here, one end portion of the tension cable 198 is anchored by a drive-side fixing portion 199.1 (drive-side anchoring) in the drive portion 20, and the other end portion is a lever arm suspension device. 33, 133 are anchored by lever arm side anchoring portions 199.2 (lever-arm side anchoring).

  In the embodiment including the heat insulating device 190 shown in FIGS. 18A and 18B, the heat transfer plate 192 is disposed on the coating heads 15 and 115. Two positioning bolts 197 are formed on the coating head side, and four spacers / positioning bolts 196 are formed on the drive unit side. Fixing of the drive unit 20 on the application heads 15 and 115 is achieved by a tension cable 198. The tension cable 198 is preferably formed as a non-thermal or low thermal conductivity cable, such as a steel cable. Each steel cable 198 is fixed in the coating heads 15 and 115 by a lever arm side fixing portion 199.2 and fixed in the driving portion 20 by a driving portion side fixing portion 199.1. The drive part side fixing part 199.1 is configured as a tensioning device for the tension cable 198.

  As a result of using a configuration including a heat insulating device 190 disposed between the driving unit 20 and the coating heads 15 and 115 as shown in FIGS. 18A and 18B, when a metal tension cable is not used, the metal If this is not the case, or if the non-thermal conductive connection is weak, the drive unit 20 is only fixed to the application heads 15, 115 over a relatively small cross-sectional area.

  Related to FIGS. 2 to 12 relating to the selective configuration (A), the connection of the drive unit 20 and the lever arm, the connection of the movable member 111 and the lever arm, and the configuration of the lever arm suspension device as the membrane attachment 33. All the embodiments or considerations regarding the control of the drive unit 20 described above are applied to the configuration of the lever arm suspension device as the rocker attachment 133 according to the selective configuration (B) shown in FIGS. It is possible. Conversely, all relevant embodiments or considerations described in relation to FIGS. 13-18A, B for the configuration of the lever arm suspension as the rocker fixture 133, according to alternative configuration (B), are shown in FIG. It is possible to apply to the structure of the lever arm suspension apparatus as the membrane suspension apparatus 33 which concerns on the selective structure (A) shown in FIGS.

10 (Nozzle) chamber 11 Movable member (for example, nozzle needle)
12 Exit opening 13 Material supply passage 14 Nozzle needle 11 or rear end of movable member 14.1 Pin 15 Application head 16 Material supply piping 17 Stop point 18 Tip 19 Housing 19.1 Plate, counterpiece 20 Drive 21 Drive Module 22 Drive coupling 23 Support 23.1 Hole 24 Pin 25 Clamp 26 Housing clamp 27 Clamp means or screw means 30 Lever arm 30.1 Spherical region 30.2 Peripheral collar 30.3 Sleeve 30.4 Rocker 31 First end Part 31.1 Slot 31.2 Hole 32 Second end 33 Membrane suspension 34 Membrane 34.1 Edge region 34.2 Bead 34.3 Hole 35 Seal ring 36 Slot 37 Central opening 38 Pressure support 39 Hole 40 cylindrical rod 41 inner portion 42 of membrane 34 web 43 cap 49 pin Bot or tilt point 50 control module (application control)
52 Control connection section 53 Sensor (for example, induction sensor) / Distance meter 54 Parameter memory 55 Connection section 60 LED maintenance confirmation 111 Movable member (for example, nozzle needle)
115 Coating head 122 Connecting rod 130 Lever arm 133 Rocker type suspension device 136 First sub arm 136.1 Inner screw 138 Second sub arm 138.1 Screw nut 138.2 Screw rod 138.3 Screw nut screw 138.4 Screw screw 138.5 Lock nut screw 138.7 Lock nut 140 Rocker mounting device 142 Rocker member 143 Rocker member side O-ring seat 143.1 Flange 143.2 First contact surface 143.3 Second contact surface 144 Longitudinal Direction 146 First attachment point 148 Second attachment point 152 First support device 153 First sphere 154 Second support device 155 Second sphere 156 First recess 157 First rocker member side sphere seat 158 2nd recessed part 159 2nd rocker member side sphere Portion 160 Plate member 162 Opening 164 First recess 165 First plate member side sphere seat 166 Second recess 167 Second plate member side sphere seat 168 O-ring 170 Sealing device 172 O-ring 173 Plate member side O-ring seat 173.1 Flange 173.2 First abutment surface 173.3 Second abutment surface 180 Spring member 182 Spiral spring 184 Plate side seat 186 Sleeve 186.1 Flange 186.2 Lever arm side seat Portion 190 Heat insulation device 192 Heat insulation plate 194 Cable tension device 196 Spacer / positioning bolt 197 Positioning bolt 198 Tension cable 199.1 Driving side fixing portion 199.2 Lever arm side fixing portion 100 Coating device A Attachment point K Paper web M Flow Possible fluid V Movement direction VA Virtual axis P / P (t, Z) Open direction movement / movement profile P1 / P1 (t, Z) Reverse direction movement / movement profile P1 * (t, Z) Movement profile PA, PB, PC, PD Parameters PA *, PB * Further processed parameters t Time T Cycle time Z axis

Claims (43)

A lever arm suspension (33, 133) configured for use in an adhesive (M) application head (15, 115),
The application head (15)
A chamber (10) formed inside the application head (15);
A movable member (11, 111) that is movably attached to the interior of the chamber (10) and opens the outlet opening by movement in the opening direction (P);
A drive unit (20) for causing the opening direction movement (P) of the movable member (11, 111);
The lever arm suspension (33, 133) has one of a selective configuration (A) and a selective configuration (B),
In the selective configuration (A), the lever arm suspension (33) is a membrane suspension (33),
The membrane suspension (33)
A lever arm connected to the movable member (11) and the drive unit (20) so as to convert the movement (P1) on the drive unit side into the movement in the opening direction (P) of the movable member (11). 30),
A membrane (34) operatively connected to the lever arm (30);
The membrane suspension (33) is configured to movably connect the lever arm (30) to the application head (15),
While the membrane (34) of the membrane suspension (33) is configured to function as a seal to prevent the adhesive (M) from leaking out of the chamber (10),
In the selective configuration (B), the lever arm suspension (133) is a rocker type suspension (133);
The rocker type suspension device (133)
A lever arm connected to the movable member (111) and the drive unit (20) so as to convert the movement (P1) on the drive unit side into the opening direction movement (P) of the movable member (111); 130),
A plate member (160) having an opening (162) through which the lever arm (130) extends;
A rocker mounting device (140) configured to movably connect the lever arm (130) to the application head (115);
A sealing device (180) configured to prevent the adhesive (M) from leaking out of the chamber (10) through the opening (162) of the plate member (160); Lever arm suspension (33, 133) characterized by   In addition to the membrane (34), the membrane suspension (33) elastically fixes the membrane (34) in the coating head (15) and at least one seal ring configured as a seal Lever arm suspension (33) according to claim 1, characterized in that it comprises a selective configuration (A), characterized in that it comprises (35).   Lever arm suspension (33) according to claim 1 or claim 2 according to selective configuration (A), characterized in that the membrane (34) comprises a metal membrane (34). The membrane (34) is
A slot (36) for increasing the elasticity of the membrane;
Lever according to claim 1 or claim 2 or 3, characterized in that it comprises a central opening (37) through which the lever arm (30) extends in the mounted state. Arm suspension (33).   The lever arm (30) and the membrane (34) are functionally connected to each other, and the membrane suspension (33) moves the drive part side (P1) in the mounted state in the movable member (11). The lever arm suspension (33) according to any one of claims 1 or 2 to 4 according to the selective arrangement (A), characterized in that it is converted into an open movement (P) in the opposite direction of ).   6. The selective structure (A) according to claim 1 or 2, wherein the membrane (34) comprises a support (23) for presetting a non-linear movement operation. The lever arm suspension device (33) according to any one of the above.   According to a selective arrangement (A), the membrane (34) comprises a support (23) with pins (24) for allowing its movement behavior to be influenced Lever arm suspension (33) according to any one of claims 1 or 2-5.   The membrane (34) has a support (23) having a region configured to be fixed in or on the housing (19, 19.1) of the application head (15) of the adhesive (M). The lever arm suspension (33) according to claim 1 or any one of claims 2 to 5, according to a selective configuration (A), characterized in that The rocker mounting device (140) is rigidly connected to the lever arm (130), and has a first mounting point (146) and a second mounting point (148) with respect to the longitudinal direction (144). A rocker member (142)
The longitudinal direction (144) is substantially perpendicular to the direction in which the lever arm (130) extends and is in a plane parallel to the spreading surface of the plate member (160);
The first and second attachment points (146, 148) are spaced apart from each other with respect to the longitudinal direction (144);
The rocker mounting device (140) is further arranged at a portion on the rocker member side of the plate member (160) and configured to support the first and second mounting points (146, 148), respectively. Lever arm suspension (133) according to claim 1, according to a selective configuration (B), characterized in that it has a first and a second support device (152, 154). The first and second support devices (152, 154) are formed as first and second spheres (153, 155), respectively;
The plate member (160) has first and second recesses (164, 166) formed as first and second plate member side spherical seating surfaces (165, 167) at the rocker member side portions, respectively. )
The first and second rocker members (142) are formed as first and second rocker member side spherical seating surfaces (157, 159) on the side facing the plate member (160), respectively. Lever arm suspension (133) according to claim 9, characterized in that it has a recess (156, 158). The diameter of each recess (164, 166) on the plate member side is set to be approximately 0.1 mm larger than the diameter of each sphere (153, 155),
The spheres (153, 155) in the recesses (164, 166) on the plate member side exist on the adhesive film,
The selective configuration (B), wherein the first and second spheres (153, 155) are pressed against the first and second rocker member side sphere seat surfaces (157, 159), respectively. A lever arm suspension (133) according to claim 1 or 9 or 10 according to claim 1. The diameter of each recess (156, 158) on the rocker member side is set to be approximately 0.1 mm larger than the diameter of each sphere (153, 155),
The spheres (153, 155) in the recesses (156, 158) on the rocker member side are present on the adhesive film,
The selective structure (B), wherein the first and second spheres (153, 155) are pressed against the first and second plate member side sphere seat surfaces (165, 167), respectively. A lever arm suspension (133) according to claim 1 or 9 or 10 according to claim 1.   The sealing device (180) includes an O-ring (172) disposed on a side of the rocker member (142) around the opening (162), the selective structure (B The lever arm suspension device (133) according to any one of claims 1 to 9-12. The plate member (160) has a plate member side O-ring seating surface (173) surrounding the opening (162) at a site on the rocker member (142) side,
The lever arm according to claim 13, wherein the rocker member (142) has a corresponding rocker member side O-ring seating surface (143) at a portion facing the plate member (160). Suspension device (133). The plate member side O-ring seating surface (173) is formed as a flange (173.1) positioned at the rocker member side outlet of the opening (162) around the opening (162), and A flange (173.1) is a cylindrical inner wall surface for a first contact surface (173.2) parallel to the spreading surface of the plate member (160) and an outer peripheral surface of the O-ring (172). A second abutment surface (173.3) of the shape
The rocker member-side O-ring seating surface (143) is formed as a flange (143.1) located on the side of the rocker member (142) facing the plate member (160), and the flange (143.143). 1) is a first abutting surface (143.2) parallel to the spreading surface of the plate member (160) and a cylindrical outer wall surface shape for the inner peripheral surface of the O-ring (172). 15. Lever arm suspension (133) according to claim 14, characterized in that it has two abutment surfaces (143.3).   The rocker member (142) is further provided with a spring member (180) for pre-applying tension acting in the direction of the plate member (160) and the attachment points (146, 148). The lever arm suspension apparatus (133) according to claim 1 or any one of claims 9 to 15 according to the configuration (B).   The spring member (180) is a helical spring (182) disposed on the side of the plate member (160) on the side opposite to the rocker member side around the lever arm (130). The lever arm suspension (133) according to claim 16, wherein: The plate member (160) has a plate side seat (184) for the spring member (180) disposed around the opening (162) on the side opposite to the rocker member side. And
The lever arm (130) has a lever arm side seat (186.2) for the spring member (180) formed as a flange (186.1) at the end on the outer drive part side. Lever arm suspension (133) according to claim 16 or 17, characterized in that.   The lever arm (130) is composed of two parts, and the part on the rocker member side has a first sub arm (136) connected to the movable member (111), and the part on the opposite side to the rocker member side. A selective configuration (B) according to claim 1 or any one of claims 9-18, characterized in that it has a second sub-arm (138) connected to the drive (20). Lever arm suspension (133) as described. The second sub-arm (138) includes a screw nut (138.1), a screw rod (138.2) having a screw nut screw (138.3) and a screw screw (138.4), and a sleeve (186). And
The screw screw (138.4) engages at its outer end with a complementary inner screw (136.1) of the first sub-arm (136);
The sleeve (186) has a lever arm side seat (186.2) for a spring member (180) formed as a flange (186.1), the screw rod (138.2) being the sleeve (186.2). The lever arm suspension (133) according to claim 19, characterized in that it extends through 186). An adhesive application head (15, 115) for dispensing an adhesive (M) having fluidity, wherein the adhesive application head (15, 115)
-The inner chamber (10);
An outlet opening (12);
A movable member (11) attached movably inside the inner chamber (10) and opening or closing the outlet opening (12) by its opening / closing movement (P);
A material supply passage (13) fluidly connected to the inner chamber (10) so that the adhesive (M) having fluidity can be introduced into the inner chamber (10);
A drive unit (20) for causing the opening and closing movement (P) of the movable member (11, 111);
The adhesive application head (15, 115) has a lever arm suspension (33, 133) having either a selective configuration (A) or a selective configuration (B),
In the selective configuration (A), the lever arm suspension (33) comprises a membrane suspension (33) comprising a membrane (34) and a lever arm (30),
The lever arm (30) moves to the movable member (11) and the drive part (20) so as to convert the movement (P1) on the driving side into the opening / closing movement (P) of the movable member (11); Connected and possible
The membrane (34) is configured to movably connect the lever arm (30) to the adhesive application head (15);
The membrane (34) functions as a seal for preventing the fluid adhesive (M) from leaking out of the inner chamber (10),
In the selective configuration (B), the lever arm suspension device (133) includes a rocker type suspension device (133), and the rocker type suspension device (133) includes:
A lever arm that can be connected to the movable member (111) and the drive part (20) so as to convert the movement (P1) on the drive part side into the opening / closing movement (P) of the movable member (111); (130),
A plate member (160) having an opening (162) through which the lever arm (130) extends;
A rocker mounting device (140) configured to movably connect the lever arm (130) to the adhesive application head (115);
A sealing device (180) configured to prevent the adhesive (M) from leaking out of the inner chamber (10) through the opening (162) of the plate member (160); An adhesive application head (15, 115) characterized in that.   In addition to the membrane (34), the membrane suspension (33) elastically fixes the membrane (34) in the adhesive application head (15), and at least one configured as a seal Adhesive application head (15) according to claim 21, characterized in that it comprises a selective ring (A), characterized in that it comprises a seal ring (35).   23. Adhesive application head (15) according to claim 21 or claim 22 according to selective arrangement (A), characterized in that the film (34) comprises a metal film (34). The membrane (34) is
A slot (36) for increasing the elasticity of the membrane;
24. Selective configuration (A) according to claim 21 or 22 or 23, characterized in that it has a central opening (37) through which the lever arm (30) moves in the mounted state. Adhesive application head (15).   The lever suspension (30), the movable member (11), and the membrane suspension (33) having the membrane (34) are configured so that the opening and closing movement (P) of the movable member (11) is 25. The selective structure (A) according to claim 21 or 22 to 24, characterized in that the lever arm (30) is arranged in the opposite direction to the drive side movement (P1). The adhesive application head (15) according to any one of the above.   23. The selective structure (A) according to claim 21, wherein the membrane (34) comprises a support (23) for presetting its non-linear movement operation. The adhesive application head (15) according to any one of 25.   According to a selective arrangement (A), the membrane (34) comprises a support (23) with pins (24) for allowing its movement behavior to be influenced 26. The adhesive application head (15) according to any one of claims 21 or 22-25.   The membrane (34) comprises a support (23) having a region configured to be secured in or on the housing (19, 19.1) of the adhesive application head (15). 26. The adhesive application head (15) according to any one of claims 21 or 22 to 25, according to a selective configuration (A), characterized in that The rocker mounting device (140) is rigidly connected to the lever arm (130), while having a first mounting point (146) and a second mounting point (148) in the longitudinal direction (144). Having a rocker member (142);
The longitudinal direction (144) is substantially perpendicular to the lever arm (130) and in a plane parallel to the spreading surface of the plate member (160);
The first and second attachment points (146, 148) are spaced apart from each other with respect to the longitudinal direction (144);
The rocker mounting device (140) is further arranged on the side of the plate member (160) on the rocker member side, and is configured to support the first and second mounting points (146, 148), respectively. 22. Adhesive application head (115) according to claim 21, according to a selective arrangement (B), characterized in that it has a first and a second support device (152, 154). The first and second support devices (152, 154) are formed as first and second spheres (153, 155), respectively;
The plate member (160) has first and second recesses (164, 166) formed as first and second plate member side spherical seats (165, 167) in the rocker member side portions, respectively; )
The first and second rocker members (142) are formed as first and second rocker member-side spherical seats (157, 159) at portions facing the plate member (160), respectively. 30. Adhesive application head (115) according to claim 29, characterized in that it has a recess (156, 158). The diameter of each recess (164, 166) on the plate member side is set to be approximately 0.1 mm larger than the diameter of each sphere (153, 155),
The spheres (153, 155) in the recesses (164, 166) on the plate member side exist on the adhesive film,
The first and second spheres (153, 155) are pressed into the first and second rocker member side sphere seats (157, 159), respectively. The adhesive application head (115) according to claim 21 or claim 30 according to B). The diameter of each recess (156, 158) on the rocker member side is set to be approximately 0.1 mm larger than the diameter of each sphere (153, 155),
The spheres (153, 155) in the recesses (156, 158) on the rocker member side are present on the adhesive film,
The first and second spheres (153, 155) are pressed into the first and second plate member side sphere seats (165, 167), respectively. The adhesive application head (115) according to claim 21 or claim 30 according to B).   The sealing device (180) includes an O-ring (172) disposed on the side of the rocker member (142) around the opening (162), the selective configuration ( 33. An adhesive application head (115) according to any one of claims 21 or 29-32 according to B). The plate member (160) has a plate member side O-ring seat (173) surrounding the opening (162) at a site on the rocker member (142) side,
34. The adhesive according to claim 33, wherein the rocker member (142) has a corresponding rocker member side O-ring seat (143) at a portion facing the plate member (160). Application head (115). The plate member-side O-ring seat (173) is formed as a flange (173.1) located at the rocker member-side outlet of the opening (162) around the opening (162), The flange (173.1) is a cylinder for supporting the first contact surface (173.2) parallel to the spreading surface of the plate member (160) and the outer peripheral surface of the O-ring (172). A second abutting surface (173.3) in the shape of an inner wall surface,
The rocker member-side O-ring seat (143) is formed as a flange (143.1) located on the side of the rocker member (142) facing the plate member (160), and the flange (143.143). 1) is a shape of a cylindrical outer wall surface for supporting the first contact surface (143.2) parallel to the spreading surface of the plate member (160) and the inner peripheral surface of the O-ring (172). 35. Adhesive application head (115) according to claim 34, characterized in that it has a second abutment surface (143.3).   The rocker member (142) is further provided with a spring member (180) for pre-applying tension acting in the direction of the plate member (160) and the attachment points (146, 148). 36. The adhesive application head (115) according to any one of claims 21 or 29 to 35 according to the configuration (B).   The spring member (180) is a helical spring (182) disposed on the side of the plate member (160) on the side opposite to the rocker member side around the lever arm (130). An adhesive application head (115) according to claim 36. The plate member (160) has a plate side seat (184) for the spring member (180) disposed around the opening (162) on the side opposite to the rocker member side. And
The lever arm (130) has a lever arm side seat (186.2) for the spring member (180) formed as a flange (186.1) at the end on the outer drive part side. An adhesive application head (115) according to claim 36 or 37, characterized in that.   The lever arm (130) is composed of two parts, and the part on the rocker member side has a first sub arm (136) connected to the movable member (111), and the part on the opposite side to the rocker member side. The method according to claim 21 or any one of claims 29 to 38, according to a selective configuration (B), characterized in that it has a second sub-arm (138) connected to the drive part (20). The adhesive application head (115) described. The second sub-arm (138) includes a screw nut (138.1), a screw rod (138.2) having a screw nut screw (138.3) and a screw screw (138.4), and a sleeve (186). And
The screw screw (138.4) engages at its outer end with a complementary inner screw (136.1) of the first sub-arm (136);
The sleeve (186) has a lever arm side seat (186.2) for a spring member (180) formed as a flange (186.1), the screw rod (138.2) being the sleeve (186.2). 40. Adhesive application head (115) according to claim 39, characterized in that it extends through 186).   The drive unit (20) and the lever arm suspension (33, 133) are substantially insulated from each other by a heat insulation device (190), and are connected to each other by a functional interaction. 41. The adhesive application head (115) according to any one of claims 21 to 40.   The heat insulating device (190) includes a heat insulating plate (192) disposed between the drive unit (20) and the lever arm suspension device (33, 133), and the drive unit (20) and the lever arm, respectively. 42. Adhesive application head (15, 115) according to claim 41, characterized in that it comprises at least two cable tensioning devices (194) interconnecting suspension devices (33, 133). The cable tension device (194) includes a spacer / positioning bolt (196) disposed between the drive unit (20) and the lever arm suspension device (33, 133), and a tension cable (198). And
The tension cable (198) extends through the spacer / positioning bolt (196), one end of which is fixed by a driving side fixing part (199.1) in the driving part (20) and the other side. The adhesive application head (15,) according to claim 42, characterized in that the end of the adhesive arm is fixed to a lever arm side fixing part (199.2) in the lever arm suspension (33, 133). 115).

Images