EP4326448A1 - Module de dosage - Google Patents

Module de dosage

Info

Publication number
EP4326448A1
EP4326448A1 EP22722504.2A EP22722504A EP4326448A1 EP 4326448 A1 EP4326448 A1 EP 4326448A1 EP 22722504 A EP22722504 A EP 22722504A EP 4326448 A1 EP4326448 A1 EP 4326448A1
Authority
EP
European Patent Office
Prior art keywords
dosing
valve actuator
metering
valve
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22722504.2A
Other languages
German (de)
English (en)
Inventor
Mario Fließ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vermes Microdispensing GmbH
Original Assignee
Vermes Microdispensing GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vermes Microdispensing GmbH filed Critical Vermes Microdispensing GmbH
Publication of EP4326448A1 publication Critical patent/EP4326448A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0871—Channels for fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
    • G01F11/30—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement with supply and discharge valves of the lift or plug-lift type
    • G01F11/32—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement with supply and discharge valves of the lift or plug-lift type for liquid or semiliquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1034—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves specially designed for conducting intermittent application of small quantities, e.g. drops, of coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0241—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes

Definitions

  • the invention relates to a dosing module with a plurality of dosing valves in the form of a dosing valve group arrangement.
  • Metering valves are usually used to meter a medium to be metered, typically a liquid to viscous metering substance, for example by dispensing the metering medium in droplets or metering points by means of the ejection element via a metering nozzle of the metering valve.
  • a dosing point or “blob” drop
  • blob drop
  • Metering valve group arrangements of such metering valves are therefore used so that the medium to be metered can be delivered simultaneously at several such metering points, for example along a straight metering path or droplet path from metering points, in the simplest case in the form of drops or blobs.
  • DE 10 2010 014 952 A1 discloses a spraying device for spraying a liquid or suspension onto a surface of a shaping tool.
  • the material in contrast to dosing modules of the type mentioned at the outset, the material is not ejected, but emerges under pressure, so that the material can only be applied over a large area by nebulization instead of a discrete point application.
  • Such a dosing module is known from EP 0 676 247 B1, for example as an application head for the dosed dispensing of flowing media, which is only narrow in width. Due to its width, it is possible to arrange a large number of such application heads next to one another in an adhesive application machine using a fastening device. With such an adhesive application machine, it is true that several dosing points can be applied simultaneously along a drop path. In a single dosing process with the adhesive application machine in question, however, there is always a considerable distance between the individual dosing points or drops, which is at least the width of an application head. It is therefore an object of the present invention to improve known dosing modules.
  • the dosing module includes a plurality of dosing valves. They are used for dosing or dosed delivery of a dosing medium on a workpiece or substrate, in particular in order to deliver several drops or dosing points simultaneously along a dosing substance line or dosing path, as described above.
  • the dosing module also includes a first valve actuator group, which has at least two valve actuators arranged next to one another in a row direction, each of which includes at least one dosing head part with an ejection element.
  • the ejection element is an element which actually ejects or conveys material out during the ejection movement.
  • a valve actuator can, as usual, also include other, in particular internal, components.
  • such a valve actuator can be constructed on the inside like a dosing system described in DE 10 2021 102 657.
  • an embodiment of such a valve actuator will also be explained in more detail later on the basis of a particularly preferred exemplary embodiment of the metering valve group arrangement.
  • At least two valve actuators means that the first valve actuator group has a plurality, i. H. a plurality of valve actuators, positioned next to one another in a row direction, i.e. one next to the other.
  • the dosing module comprises a second valve actuator group with at least one valve actuator, which also has a dosing head part with an ejection element.
  • the second "valve actuator group” means a group according to the mathematical definition, i. H. a so-called “trivial group” with exactly one element, here e.g. B. exactly one valve actuator.
  • the second valve actuator group can preferably have a plurality of, ie at least two, valve actuators arranged next to one another in a row direction, which also each comprise at least one dosing head part with an ejection element.
  • the second valve actuator group can be constructed in accordance with the first valve actuator group.
  • the dosing head parts of the first valve actuator group and the at least one dosing head part of the second valve actuator group of the dosing module also face each other.
  • “Facing each other” is to be understood as meaning that the two valve actuator groups are arranged relative to one another in such a way that their dosing head parts with the ejection element lie on plan sides that point toward one another. In other words, the two valve actuator groups, more precisely their valve actuators, are aligned in the opposite direction to one another, rotated by 180°.
  • the metering module includes a metering nozzle arrangement or nozzle group with a plurality of metering nozzles.
  • Each dosing head part is assigned a dosing nozzle of the dosing nozzle arrangement, so that the dosing nozzle forms a dosing valve with the ejection element of the dosing head part.
  • the dosing nozzles of the dosing nozzle arrangement can, for example, each be separate dosing nozzles, for example manufactured in one piece, which in the operating state in connection with the ejection element of the respective dosing head part of a valve actuator each form a detachably coupled dosing head of the valve actuator.
  • An ejection element is then arranged in a so-called valve seat or sealing seat in a metering nozzle in the dosing head.
  • the dosing nozzle arrangement could also consist of several groups or dosing groups of dosing nozzles or be combined, which dosing nozzles can be firmly connected to one another at least within the group and then in turn coupled detachably as a group to a corresponding group of valve actuators in terms of the number of valve actuators could become.
  • all metering nozzles of the metering nozzle arrangement can be installed in a component that belongs together or form a component that belongs together, as will be explained in more detail below.
  • the dosing section already mentioned above means a dosing nozzle arrangement with dosing nozzles and an arrangement of dosing head parts with ejection elements in a row in a row direction of the valve actuator, with several dosing points at the same time can be applied to a workpiece along a dosing substance line or dosing path only slightly offset from one another in a single static dosing step, without, for example, a dosing nozzle having to be moved dynamically relative to a workpiece along a line several times for dosing, as would be the case with a single dosing nozzle has to be moved or moved.
  • a dosing medium or dosing substance can be applied to a target surface of a workpiece more quickly, ie in a shorter time.
  • more dosing medium can also be applied at the same time, ie a dosing quantity can be increased. Larger areas can thus be served in the same time interval, for example in a single dosing step a straight path of dosing points in the manner of a straight dosing line or dosing section.
  • the dosing points can also be lined up even more densely.
  • the construction according to the invention also enables - integrated in a superordinate dosing machine or dosing system that can be controlled in at least two spatial directions - a dosing method in the manner of a "3D printing or 3D printing method" in which material is applied layer by layer.
  • the dosing medium can be fed by parallel movement of the dosing module in a longitudinal direction of the valve actuator (perpendicular to the direction of the row) via a flat, z.
  • horizontal metering surface can be applied repeatedly, in between the metering module could be moved in a height or depth direction to apply another layer.
  • the first group of valve actuators and the second group of valve actuators of the dosing module can run parallel to one another in a row direction.
  • the mutually parallel groups of valve actuators of the dosing module can, for example, form a common (valve actuator) double row, ie a double row of valve actuators in two parallel (dosing valve or valve actuator) rows.
  • There are preferred options for the relative arrangement of the valve actuator groups of the dosing module (for example in the form of the dosing valve group arrangement).
  • valve actuator groups can preferably be arranged shifted to one another in the row direction.
  • valve actuator groups could be parallel to each other, e.g. B. in the transverse direction or direction of the width of the valve actuator or be offset.
  • valve actuators of one valve actuator group can be arranged linearly displaced relative to the valve actuators of the opposite valve actuator group in the row direction or direction of extension of the valve actuator groups.
  • three opposing valve actuators (two from one valve actuator group and one from the other valve actuator group) can be offset opposite one another and at least in places, such as e.g. B. at the dosing head parts, directly to each other or adjoin.
  • Such a mutually shifted or staggered arrangement of the valve actuators of one valve actuator group to the other valve actuator group in a dosing module in the form of the dosing valve group arrangement makes possible, for example (with appropriate control during operation) after application of a group or series of discrete (dosing substance) drops or dosing points, among other things, by means of the ejector elements of the first valve actuator group on a workpiece in a very simple manner the application of a second group or row of further dosing points between the previously applied dosing points.
  • the two valve actuator groups after dispensing the first group or row of dosing points or drops in a row connecting direction (transverse, preferably perpendicular to the row direction of the groups) of the two valve actuator groups by the distance between the valve actuator groups relative to the workpiece to proceed in order to then apply the second group or series of dosing points on the workpiece.
  • the dosing points can be applied at half the distance from one another along a discrete line of dosing points extending in the row direction.
  • a discrete line of dosing points is meant a line in which the dosing points are at least somewhat spaced apart.
  • a continuous or continuous dosing path i.e. a dosing substance line
  • a simple linear movement in which the individual dosing points border one another or at least each other partially overlap.
  • this arrangement allows (with appropriate control during operation) - by the dosing module is performed under continuous delivery of dosing in rows connecting direction over a workpiece - also the formation of a flat, d. H. two-dimensionally extending dosing substance surface by extending the dosing substance line already described above in the series connection direction to a dosing substance surface with the width of the dosing substance line and an arbitrary length.
  • the dosing head parts of the two groups of valve actuators can be interlocked.
  • the arrangement of the valve actuators can be selected appropriately.
  • interleaved is meant that the valve actuators are at least partially interleaved in the row direction. Further preferred configurations of the toothing are explained further below.
  • valve actuators of a respective valve actuator group can preferably be aligned essentially parallel to one another. “Aligned parallel to each other” means a similar alignment or orientation of the valve actuators, in which each valve actuator of a valve actuator group is oriented or aligned identically or similarly to all other valve actuators of the same valve actuator group.
  • valve actuators of a respective valve actuator group can preferably be aligned with an angular offset relative to one another.
  • the alignment of the valve actuators to one another is independent of the course of the row direction.
  • valve actuators of one of the valve actuator groups e.g. B., if they are aligned with an angular offset to each other, be arranged in a fan-like manner next to each other in an arcuate row direction or on a convexly curved arc, so that they can all be aligned to a dosing point, for example.
  • valve actuators of at least one valve actuator group can be directed towards a common dosing point. This ensures that the valve actuators can be arranged at the same distance from the target surface.
  • the valve actuators are arranged and aligned in sections on a kind of "cylinder surface" inclined to one another.
  • valve actuators of both groups of valve actuators can be directed towards a common dosing point.
  • the valve actuators are arranged in sections on a kind of “spherical surface” and are aligned inclined to one another or to the center of the sphere, as will be explained later using an exemplary embodiment.
  • valve actuators of one of the valve actuator groups may be arranged in a straight line next to each other in a straight line direction.
  • both groups of valve actuators can be straight or both can be fan-shaped. But you can also be different, for example, z. B. one valve actuator group as a straight line and the other as an arcuate fan.
  • a valve actuator can preferably be in contact in the row direction with at least one further adjacent valve actuator, in particular an end section of a valve actuator (as will be explained further below), or housing can rest against housing.
  • valve actuators of a valve actuator group arranged next to one another, for example along one floor plan side, i.e. floor plan side to floor plan side, can be in contact with one another or abut one another and form a “valve actuator pair”, so to speak. Basically they could do it at the rest
  • Floor plan pages can be structured in almost any way, e.g. B. connections etc. have.
  • a “valve actuator pair” which at least as a pair can be arranged compactly and extremely closely together, a relatively narrow double row of dosing points can be formed very easily along a dosing section, in which the dosing points are then dosed at least in pairs in one step close to each other be able.
  • a second valve actuator pair of the second valve actuator group could be arranged according to the invention for twice the order quantity.
  • valve actuator pairs should not be viewed as limiting.
  • valve actuators can also be closely contacted in larger groups.
  • valve actuators can be in contact with at least one further valve actuator.
  • valve actuator groups of the double row z. B. on mutually facing shorter plan pages (explanation later) of the respective valve actuator preferably almost directly, ie z. B. only a gap apart, be arranged in a relatively small distance to each other relative to the length of the valve actuator.
  • valve actuators or the dosing head parts of the two valve actuator groups can even be arranged interlocked so deeply that the dosing head parts with the ejection elements form a common straight dosing path of dosing points that are spaced apart from one another, as will be explained later using a particularly preferred exemplary embodiment.
  • the two groups of valve actuators are pushed into one another in a sawtooth-like manner in the series connection direction. Further advantages of such an interlocking arrangement of the two valve actuator groups with respect to one another are also explained further below.
  • all valve actuators - except for the two outermost valve actuators at the beginning and end of the two groups - can be arranged or interlocked in such a way that (at least in the area of the dosing head parts or in the bay section of the valve actuator) their ejection element is in the middle between two opposite Ejection elements of two valve actuators of the other valve actuator group intervene.
  • valve actuators or the dosing head parts of the two valve actuator groups can also be interlocked so deeply into one another, for example. Then, however, the dosing head parts with the ejection elements form a dosing path running on an arc of dosing points spaced apart from one another.
  • the dosing module is not limited to such a recessed interlocking of the ejector elements. In many cases, however, even a smaller, only slight toothing would achieve a corresponding effect such as an almost straight application line or metering path of the metered substance (without such a traversing movement in the row-connecting direction, as already described above). This depends on the settings and the dosing substance or quantities of dosing substance, namely how large the area of the dosing points on the workpiece is.
  • valve actuator groups or the individual valve actuators of the valve actuator groups can each be shifted or offset by half the width of a valve actuator, preferably as exactly as possible within the usual tolerances.
  • Such an arrangement enables the application of a group or series of discrete dosing points at half the distance from one another (relative to a distance between two valve actuators of a valve actuator group arranged next to one another).
  • valve actuator groups can each be arranged shifted relative to one another by a width of an end section of a valve actuator explained below in, for example, a straight row direction.
  • valve actuators of a valve actuator group there are also preferred options for arranging the valve actuators of a valve actuator group.
  • each of the above valve actuators could be square in outline in plan.
  • a valve actuator can have a substantially rectangular, in particular rather elongated, outline or plan, i. H. with two shorter and two longer ground plan sides, in order to be able to arrange or group the valve actuators with their dosing head parts with the ejection element extremely closely next to one another at the smallest possible distance, in particular to be able to line them up.
  • “Essentially rectangular” is to be understood in such a way that the valve actuator can be rectangular in shape except for an end section on one of the shorter plan sides—which end section forms the dosing head part with the ejection element.
  • a valve actuator can be narrower in the area of the ejection element in a transverse direction or row direction (in which the other valve actuators of the valve actuator group are also connected laterally beyond the relevant valve actuator) than in the remaining part in the longitudinal direction (perpendicular to the transverse direction or in Direction away from the other parallel valve-actuator group) behind the ejection element.
  • the shorter plan side ie the broad side or transverse side, can preferably have or be at most two thirds, particularly preferably at most one half, of a length of the longer plan side, ie the long side.
  • the dosing head parts with the ejection element of the valve actuator can preferably protrude like an oriel on the respective valve actuator, for example by the above-mentioned end section on one of the shorter plan sides protruding in the form of an oriel from the rest of the plan of the valve actuator, i.e. forming a so-to-speak oriel section containing the ejector element, which is only part of it the floor plan page.
  • the ejection elements can be positioned centrally along the shorter plan side in the bay section of the valve actuator.
  • a valve actuator can preferably have a maximum width (shorter plan side or broadside) of 30 mm at most. The maximum width is the width at the thickest part of the valve actuator.
  • a valve actuator can particularly preferably have a maximum width of 20 mm and very particularly preferably a maximum width of 10 mm.
  • a valve actuator on the dosing head part with the ejection element or an entire housing side of the ejection element can have half the width or half of the aforementioned maximum width, i.e. it can also be formed off-centre only over a first or second half of the width.
  • valve actuators of a first valve actuator group can be arranged side by side and additionally with a second valve actuator group of identical construction or at least congruent valve actuators facing each other with mirrored dosing head parts, each with an ejection element, so that in the transverse direction (or row direction) along the double row of the dosing module, for example in the form of the dosing valve group arrangement, with dosing valves alternately offset in two directions relative to one another, an ejector element of a valve actuator of the first valve actuator group alternates with an ejector element of a valve actuator of the second valve actuator group.
  • valve actuators of this type with particularly narrow dosing head parts can be arranged in a very compact manner with the nozzle distance halved in relation to one another.
  • a dosing substance can thus be placed side by side at closer intervals than the actual width of the relevant floor plan side of the valve actuator would permit due to the space available.
  • the ejection elements can be in a series connection direction of the two groups of valve actuators perpendicular to the direction of the width or transverse direction of the Valve actuator, advantageously also very snugly, be interlocked.
  • the metering nozzles of the metering nozzle arrangement can be installed on or in a component that belongs together.
  • the metering nozzle arrangement of the metering module can have a nozzle unit with a plurality of metering nozzles that are integrated or can be inserted detachably into the nozzle unit.
  • the nozzle unit can also include other parts or functional areas, such as e.g. B. a metering media supply or parts thereof (for example, a suitable channel structure to the metering nozzles, etc.), as will be explained later.
  • a metering media supply or parts thereof for example, a suitable channel structure to the metering nozzles, etc.
  • a particularly preferred nozzle unit could be designed, for example, in the form of a nozzle plate with an area with predefined nozzle positions for the metering nozzles or metering nozzles already formed in the nozzle unit, without restricting the nozzle unit to a plate-like, essentially two-dimensional shape.
  • the nozzle unit can preferably be coupled to the at least two valve actuator groups, in particular to each individual valve actuator, in order to mechanically couple or connect all the valve actuators to one another like a clip or bridge.
  • the nozzle unit can particularly preferably be fitted with detachable fastening means, such as e.g. B. screws, be coupled to the valve actuators.
  • the nozzle unit can preferably be designed in the form of a nozzle plate curved in an arc shape, particularly preferably in the form of a nozzle plate in the shape of a segment of a cylinder. This is e.g. B. at fan-like arranged valve actuators.
  • the metering module could, preferably in the form of a complete metering valve group arrangement, as a finished component with a Multiple slots are offered for a variable number of valve actuators. The customer himself could easily and quickly replace individual valve actuators for maintenance or cleaning purposes in a minimum of time.
  • a space for attaching a separate control unit for the dosing module could be reserved on the nozzle unit or the Control unit already placed on it to be able to jointly or individually control the valve actuator of the dosing module, for example when attached to a higher-level dosing system or a robot for spatial control, via a connection using the control unit for dosing.
  • the nozzle unit can then also serve to jointly attach the dosing module to the dosing system or the robot.
  • the dosing module can additionally be configured with a common supply of dosing media for at least some of the dosing nozzles of the dosing nozzle arrangement, preferably on or in the nozzle unit.
  • the individual dosing media supply connections of the individual dosing nozzles of the dosing nozzle arrangement could be connected to such a dosing medium supply for the continuous supply of dosing substance from a dosing substance reservoir or tank, e.g. B. a cartridge, via a suitable channel structure in series or individually connected or coupled.
  • the metering nozzle arrangement can comprise a plurality of separate metering nozzles, which can each be coupled separately to the at least two valve actuator groups, in particular to the individual valve actuators.
  • the separate dosing nozzles can particularly preferably be releasably coupled to the at least two valve actuator groups, in particular to the individual valve actuators.
  • FIG. 1 shows a perspective view of an embodiment of a dosing module according to the invention in the form of a dosing valve group arrangement, with the nozzle unit removed,
  • FIG. 2 shows a view from below of the exemplary embodiment from FIG.
  • FIG. 3 is a side view of the embodiment of Figure 1
  • FIG. 4 is a perspective bottom view obliquely from below of the exemplary embodiment from FIG. 1, but now with a coupled nozzle unit,
  • FIG. 5 shows a longitudinal section through the nozzle unit according to FIG. 4, without a reservoir and compressed air supply hose, with two coupled valve actuators (partially shown),
  • FIG. 6 shows a longitudinal section through a further exemplary embodiment of a metering module according to the invention in the form of a fan-type metering valve group arrangement, with a correspondingly adapted, coupled nozzle unit.
  • FIG. 1 shows a perspective view of an exemplary embodiment of a dosing module 1 according to the invention in the form of a dosing valve group arrangement 1 (here with a decoupled nozzle unit 20).
  • the metering valve group arrangement 1 is referred to below as a metering valve row arrangement 1 without loss of generality, since in the exemplary embodiments the valve actuator groups 2, 5 each comprise at least two valve actuators 3, which are each arranged or lined up in a double row.
  • the metering valve row arrangement 1 has, on the one hand, five valve actuators 3 arranged next to one another in a transverse direction QR and forming a first row 2 of valve actuators. On the other hand, five further valve actuators 3 forming a second row 2 of valve actuators are arranged next to one another in a longitudinal direction LR opposite and offset in the transverse direction QR.
  • the metering valve row arrangement 1 of the present exemplary embodiment therefore forms, for example, as shown in the present exemplary embodiment, a double row 2, 5 of ten mutually identical valve actuators 3.
  • valve actuators 3 of both valve actuator rows 2, 5 are arranged interlocked with one another or with their respective dosing head part 4 , wherein the dosing head parts 4 each have an ejection element 4a for dosing a dosing medium on a workpiece.
  • the toothing is such that the ejection elements 4a together form a straight metering path D, as can be seen in FIG. 2 using a view of the metering valve row arrangement 1 from below.
  • Said ejection elements 4a are here in the form of elongated plungers 4a with a plunger tip at the front, workpiece side End and a plunger head formed at the rear, lever-side end, as will be explained below.
  • valve actuators 3 Since a plurality of identical valve actuators 3 are involved, the (illustrated) external structure of a single valve actuator 3 will be described in more detail below and the internal structure (not shown) will be described in somewhat less detail below.
  • Each valve actuator 3 essentially has a cuboid housing 8 that extends in three orthogonal spatial directions, namely in the transverse direction QR, the longitudinal direction LR and the depth direction TR.
  • the cuboid housing 8 itself, shown in a bottom view in Figure 2, is essentially rectangular in plan, i. H. formed with two shorter plan pages 6 (in the transverse direction QR) and two longer plan pages 7 (in the longitudinal direction LR) with a length I.
  • a valve actuator 3 for operation, several lines or connections branch off from the cuboid housing 8 on the upper side (upward in the depth direction TR).
  • two lines or cables 9 for exchanging data with a control unit (not shown here) for supplying the power required during operation (e.g. for the integrated heating) and for controlling and monitoring the piezoelectric drives on a top side of the Housing 8 are three more connections, namely a plug-in connection of a supply channel 15 and two plug-in connections of two discharge channels 16 for a cooling medium for cooling the valve actuator 3.
  • the cooling medium can, for. B. be a gas such as air, but also a cooling liquid. A dynamic pressure of the Cooling medium are minimized and thus a cooling capacity or cooling effectiveness of the cooling can be maximized.
  • the width b of the valve actuator 3 i.e. a transverse extension in the transverse direction QR, is already designed to be as narrow as possible overall.
  • a special feature in terms of an additional local narrowing in the transverse direction QR is the dosing head part 4 already mentioned or the entire housing side of the valve actuator 3 pointing to the other row of valve actuators 2, 5 on the side of the dosing head part 4 (i.e. e.g. in Figure 3: the left housing side of the right valve actuator
  • the dosing head part 4 or the entire side of the housing in the area of the dosing head part 4 i.e. in particular also the part in the depth direction TR above the actual dosing head part
  • the housing 8 on the housing side of the dosing head part 4 is continuous from the top to the bottom, d. H. in the bay section 3e or end section 3e, it is narrower at the end in the transverse direction QR than the rest of the housing 8.
  • valve actuator 3 adjoins at least one opposite valve actuator 3 of the other valve actuator row 2 , 5 . More precisely, it can be arranged in such a way that the narrowed bay section 3e protrudes between two equally “tapered” housing sides, i.e. between two equally narrowed bay sections 3e of two opposite valve actuators 3 of the other valve actuator row 2, 5.
  • the dosing head parts 4 of the valve actuators 3 are thus positioned next to one another in an essentially interlocked manner. So it is in this arrangement according to the invention in each case a valve actuator 3 of a valve actuator row 2, 5 with its dosing head part 4 flush on the side of a dosing head part 4 of a valve actuator 3 of the other valve actuator series 2, 5. With this structural design and arrangement, a distance between the individual dosing head parts 4 and thus the distance between the individual dosing points is once again reduced. In particular when using the same dosing substance in all dosing nozzles, this small distance can be used to produce a close-meshed, quasi-continuous drop path of dosing points. Depending on the size of the droplets, such droplets then have no or almost no distance from one another and thus, as already mentioned, possibly form a continuous dosing substance line from one dosing substance.
  • the valve actuator 3 On the remaining side of the case beyond the narrowing, i. H. In the wider part, the valve actuator 3 is, as stated, of the same width or thickness, as can be seen in particular in FIG. There is also a cover plate 10 on the outside of the housing 8. It covers or protects, among other things, a processor circuit board or control circuit board arranged centrally in the longitudinal direction LR for controlling the valve actuator 3 inside the valve actuator 3 an insulating circuit board for insulation from the actuators (as explained below), a connection circuit board, a Hall sensor circuit board and a voltage supply for the valve actuator 3 can also be integrated.
  • a processor circuit board or control circuit board arranged centrally in the longitudinal direction LR for controlling the valve actuator 3 inside the valve actuator 3 an insulating circuit board for insulation from the actuators (as explained below), a connection circuit board, a Hall sensor circuit board and a voltage supply for the valve actuator 3 can also be integrated.
  • the dosing head part 4 In order to hold the plunger 4a of a valve actuator 3 and to guide it suitably for an ejection movement (in the direction of the nozzle opening), the dosing head part 4 also includes a plunger centering screw for guided reception of the plunger 4a, which is held or received in an annular manner surrounded by the dosing head part 4 .
  • a tappet spring In order to resiliently mount the tappet 4a in the valve actuator 3, a tappet spring is located between a tappet head of the tappet 4a and the tappet centering screw.
  • the interior of the metering valve row arrangement 1 can in particular be constructed in the same way as the metering system from DE 10 2021 102 657 on the inside.
  • a lever mounted tiltably in a lever support directly on the tappet head which in turn is acted upon alternately around its tilting axis (directly to the right and left or before and after the tilting axis) with a tilting moment which is divided by two piezoelectric actuators or actuators that are positioned at an angle to one another and are present on the lever at two actuator contact points of the lever are triggered.
  • valve actuator group formed from the rows 2, 5 of valve actuators 3, each with their dosing head parts 4 is used to form a dosing valve row arrangement 1 with a nozzle unit 20, more precisely the dosing nozzles 4b of the dosing nozzle arrangement 4', e.g. B. in an area on the nozzle unit 20 coupled.
  • FIG. 4 shows a nozzle unit 20 designed as a nozzle plate 20 in a perspective view from below.
  • the nozzle plate 20 is shown again in FIG. 5 without a reservoir and compressed air supply hose (which can also include a heating connection cable if necessary) in a longitudinal section through the nozzle plate 20 along the section line V-V to show the inner workings.
  • 5 (here on the right) shows only two valve actuators 3 of the valve actuator rows 2, 5, at least partially, in the coupled state with the nozzle plate 20, in order to make the structure of the nozzle plate 20 more visible.
  • all dosing nozzles 4b are actually each coupled to a dosing head part 4 or a valve actuator 3 of the valve actuator rows 2, 5.
  • the metering valve row arrangement 1 with the tappets 4a of the valve actuator 3 is arranged or positioned in a metering position on the nozzle plate 20 of the metering nozzle arrangement 4'.
  • the tappets 4a of the valve actuators 3 protrude into a respective metering nozzle 4b or into a respective seal of a metering nozzle 4b on the nozzle plate 20, forming the valve seat or sealing seat.
  • there are appropriate seals in an upper part of the metering nozzles 4b e.g. B. ring seals or membrane seals (not shown here), which in the coupled state of the valve actuator 3 with the nozzle plate 20 (as shown in Figure 4) then sit annularly between the nozzle chambers 4b 'and the tappets 4a.
  • valve actuators 3 of the dosing module 1 are each detachably screwed to the nozzle plate 20 with screws 26 which are screwed through the nozzle plate 20 into the valve actuator 3 .
  • the nozzle plate 20 itself could in turn be fastened to a robot arm of the higher-level dosing system, for example by means of the screws 27, in order to fasten the dosing module 1 with the nozzle plate 20 to the dosing system as a whole for the dosing operation.
  • the nozzle plate 20 further includes an integrated dosing medium supply 21 or channel structure 21 from a reservoir 22 or tank 22 to the dosing nozzles 4b for the sufficient and constant supply or tracking of a dosing medium for the valve actuator l from the common reservoir 22.
  • the channel structure 21 leads from the reservoir 22 via a vertical channel into the interior of the nozzle plate 20, from where a horizontal channel leads to the metering nozzles 4b.
  • the channel structure 21 manages with a single channel that runs horizontally through the nozzle plate 20 and all the metering nozzles 4b or nozzle chambers 4b' of the dosing nozzles 4b and supplied with dosing medium.
  • a nozzle plate can have any number of channels.
  • a separate channel could run to each nozzle chamber of each dosing nozzle.
  • further channels branching off perpendicularly to the row direction from one or more channels running parallel to the row direction could also branch off to the individual nozzle chambers or to a group of nozzle chambers.
  • nozzle chambers of the dosing nozzles of the respective rows could, for example, be supplied in groups by means of corresponding supply channels or be connected to at least one reservoir.
  • the metering nozzles of the metering valves e.g. B. individually, in groups or in rows, preferably with different media or dosing media (z. B. from a corresponding number of reservoirs) are supplied.
  • the dosing medium supply 21 comprises an opening which is closed with a closure element 24 at least during normal dosing operation. The opening can be opened if the channel of the dosing medium supply 21 is to be cleaned. In addition, this opening helps with the introduction of the metering medium supply 21 or channel structure 21 in the nozzle unit 20, particularly when the channel structure 21, the z. B. consists of a vertical and a horizontal channel to the metering nozzles, is drilled.
  • a nozzle plate particularly if it has a more complex channel structure, e.g. B. has one of the variants described above, for example, be produced or printed in a 3D printing process.
  • the nozzle plate 20 here additionally includes a reservoir 22, which can be pressurized via a pressure supply. Since dosing processes are generally very temperature-sensitive, temperature control of the nozzle plate 20 via heating or cooling or nozzle plate 20 is obvious. This can be done centrally, ie for the entire nozzle plate 20, or individually via the stop surfaces of the respective valve actuators 3. An additional temperature control of the reservoir 22 and any supply line or piping between the reservoir 22 and the nozzle plate 20 is also conceivable as an option, but is not explicitly shown in the exemplary embodiments.
  • the heating element 12 is screwed to the fluidic positioning 11 by means of at least one screw 14 .
  • FIG. 6 shows a further exemplary embodiment of a metering module 1” according to the invention in the form of a fan-like or arc-shaped metering valve row arrangement 1” with a Nozzle unit 20" in the form of a nozzle plate 20" in longitudinal section.
  • the exemplary embodiment shown here can be configured essentially identically to the previous exemplary embodiment, with the exception of the differences listed below.
  • the nozzle plate 20" is arcuate, at least in the area of the metering nozzles 4b, i.e. the valve actuators 3 are not arranged in the same two-dimensional plane parallel to one another perpendicular to the row direction QR (as was the case in the previous exemplary embodiment), but fan-like with dosing directions inclined towards one another along an arc-shaped row direction QR” directed or inclined towards a common dosing point overlapping in the longitudinal section.
  • the upper side of the nozzle plate 20'' on which the valve actuators 3 are coupled to the metering nozzles 4b is slightly curved upwards in the area of the metering nozzles 4b.
  • the underside of the nozzle plate 20" in the area of the metering openings 25" of the metering nozzles 4b is recessed in an arc shape upwards, so that the nozzle plate 20" has the shape of a circular ring sector with a uniform thickness in the longitudinal section between the top and bottom.
  • the metering nozzles 4b are aligned radially between the top and bottom of the nozzle plate 20" towards the imaginary center point of the circular ring sector.
  • the two rows of metering nozzles 4b for the valve actuator 3 of the valve actuator rows 2, 5, as in the previous exemplary embodiment, are again interlocked so deeply that all metering nozzles 4b are in one line and are therefore connected to a single horizontal channel of the Channel structure 21 or dosing medium supply 21 are connected to one another.
  • the five valve actuators 3 of the two valve actuator rows 2, 5 shown here, for example, are slightly angularly offset from one another - with the dosing head parts 4 lying almost flush on the surface of the nozzle plate 20" and with the ejection elements 4a protruding into the dosing nozzles 4b - with the radially to the surface in the nozzle plate 20 "coupled trained metering nozzles 4b.
  • valve actuators 3 of the first row of valve actuators 2 (in the longitudinal section in the foreground) and the other two valve actuators 3 of the second row of valve actuators 5 (in the longitudinal section in the background in the two spaces between the three valve actuators 3) are interlocked in such a way that all five valve actuators 3 of viewed above (not shown) would lie on a dosing line.
  • a single dosing point (at the intersection of the dosing jets) can be achieved with this arrangement with dosing valves offset at an angle.
  • dosing points lying arbitrarily close or close to one another could also be set or dosed on a workpiece via a variable distance from the target surface.
  • mixing could in principle also be the aim, i. H. for example, a dosing medium consisting of several components is used, with the components then advantageously being able to mix with the appropriate channel structure only during dosing on the workpiece.
  • the dosing system can use the dosing module 1, 1" in the form of the
  • a movement mechanism within the valve actuator 3 then generates and transmits a corresponding ejection and retraction movement to the ram head of the ram 4a for deflecting the ram 4a in the dosing direction DR already mentioned above.
  • the structure described above has the advantage that with the valve actuators 3 of the metering valve row arrangement 1, 1" during operation, a desired metering medium is dispensed in portions from one or more nozzle chambers 4b' of one or more metering nozzles 4b in succession, simultaneously or alternately onto a workpiece in small or large Quantities can be applied or released.
  • the metering valve row arrangement 1, 1′′ can be controlled accordingly.
  • a selected dosing nozzle 4b is controlled and driven indirectly via the lever by means of a rapid movement or ram movement of the ram 4a through an opening cross section or the nozzle opening 25 already mentioned the actuators working in opposite directions deliver at least one droplet of a desired dosing medium that can be precisely dosed in a quantity in a dosing direction DR.
  • the nozzle opening 25 can also be designed in the form of an exchangeable nozzle insert on the dosing nozzle 4b in order to be able to easily and quickly set a dosing quantity and form specifically for different areas of application.
  • metering valve group arrangements in particular z. B. a metering valve array according to the first embodiment and another metering valve array according to the second embodiment, arranged in a metering system and / or be arranged significantly more valve actuators in a metering valve array.
  • metering valve group arrangements in particular z. B. a metering valve array according to the first embodiment and another metering valve array according to the second embodiment, arranged in a metering system and / or be arranged significantly more valve actuators in a metering valve array.

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  • Engineering & Computer Science (AREA)
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  • General Engineering & Computer Science (AREA)
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  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un module de dosage (1, 1'') pour le dosage d'un milieu de dosage, qui comprend une pluralité de soupapes de dosage (4a, 4b), comprenant un premier groupe d'actionneurs de soupape (2) qui comporte au moins deux actionneurs de soupape (3) disposés l'un à côté de l'autre dans une direction de rangée (QR, QR''), lesdits actionneurs de soupape (3) comprenant chacun au moins une partie tête de dosage (4) présentant un élément d'éjection (4a), et un deuxième groupe d'actionneurs de soupape (5) comprenant au moins un actionneur de soupape (3), de préférence avec plusieurs actionneurs de soupape (3) disposés les uns à côté des autres dans une direction de rangée (QR, QR''), au moins un actionneur de soupape (3) comprenant également une partie de tête de dosage (4) pourvue d'un élément d'éjection (4a). Les parties de tête de dosage (4) du premier groupe d'actionneurs de soupape (2) et du deuxième groupe d'actionneurs de soupape (5) sont orientées l'une vers l'autre. En outre, le module de dosage (1, 1'') comprend un ensemble de buses de dosage (4') comprenant une pluralité de buses de dosage (4b), chaque partie de tête de dosage (4) étant associée à une buse de dosage (4b) de l'ensemble de buses de dosage (4'), de sorte que la buse de dosage (4b) forme respectivement avec l'élément d'éjection (4a) de la partie de tête de dosage (4) une soupape de dosage (4a, 4b).
EP22722504.2A 2021-04-19 2022-04-12 Module de dosage Pending EP4326448A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021109850.5A DE102021109850A1 (de) 2021-04-19 2021-04-19 Dosiermodul
PCT/EP2022/059793 WO2022223377A1 (fr) 2021-04-19 2022-04-12 Module de dosage

Publications (1)

Publication Number Publication Date
EP4326448A1 true EP4326448A1 (fr) 2024-02-28

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Application Number Title Priority Date Filing Date
EP22722504.2A Pending EP4326448A1 (fr) 2021-04-19 2022-04-12 Module de dosage

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US (1) US20240191729A1 (fr)
EP (1) EP4326448A1 (fr)
JP (1) JP2024515553A (fr)
KR (1) KR20230171929A (fr)
CN (1) CN117098609A (fr)
CA (1) CA3209822A1 (fr)
DE (1) DE102021109850A1 (fr)
WO (1) WO2022223377A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411569C1 (de) 1994-04-02 1995-07-20 Itw Dynatec Gmbh Klebetechnik Auftragskopf zur dosierten Abgabe von strömenden Medien
DE29907968U1 (de) 1999-05-05 1999-07-29 Nordson Corporation, Westlake, Ohio Vorrichtung zum Abgeben von Fluid, insbesondere Klebstoff
US6698551B2 (en) 2001-04-10 2004-03-02 Lincoln Industrial Corporation Modular lubricating system and injector
GB2394915B (en) * 2002-09-30 2006-03-29 Matsushita Electric Ind Co Ltd Method and device for discharging fluid
DE102007055599A1 (de) 2007-11-20 2009-05-28 Kba-Metronic Ag Flexibler Druckkopf
DE102010014952A1 (de) 2010-04-14 2011-10-20 Thyssenkrupp Gerlach Gmbh Sprühelement und Sprühvorrichtung
DE202010013054U1 (de) * 2010-12-03 2012-03-05 Baumer Hhs Gmbh Vorrichtung zum Auftragen von viskosen Medien
DE202013100352U1 (de) 2013-01-25 2014-04-28 Baumer Hhs Gmbh Auftragseinrichtung zum Auftrag von fluidem Medium auf ein Substrat
DE102014100392A1 (de) 2014-01-15 2015-07-16 Krones Ag Behälterbehandlungsmaschine zur Bedruckung von Behältern
DE102018108915A1 (de) * 2018-04-16 2019-10-17 Atlas Copco Ias Gmbh Dosierventil
US10830259B1 (en) 2018-08-23 2020-11-10 Keith Donald Brookins Solenoid high pressure indexing valve system
DE102021102657A1 (de) 2021-02-04 2022-08-04 Vermes Microdispensing GmbH Dosiersystem

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JP2024515553A (ja) 2024-04-10
KR20230171929A (ko) 2023-12-21
CN117098609A (zh) 2023-11-21
US20240191729A1 (en) 2024-06-13
CA3209822A1 (fr) 2022-10-27
DE102021109850A1 (de) 2022-10-20
WO2022223377A1 (fr) 2022-10-27

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