EP2528695A1 - Auftragskopf zum abgeben eines fliessfähigen mediums und auftragsvorrichtung zum abgeben eines fliessfähigen mediums - Google Patents
Auftragskopf zum abgeben eines fliessfähigen mediums und auftragsvorrichtung zum abgeben eines fliessfähigen mediumsInfo
- Publication number
- EP2528695A1 EP2528695A1 EP11700695A EP11700695A EP2528695A1 EP 2528695 A1 EP2528695 A1 EP 2528695A1 EP 11700695 A EP11700695 A EP 11700695A EP 11700695 A EP11700695 A EP 11700695A EP 2528695 A1 EP2528695 A1 EP 2528695A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- membrane
- movement
- control module
- movable element
- 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.)
- Granted
Links
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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
- B05C5/0225—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
- B05C5/0229—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 the valve being a gate valve or a sliding valve
-
- 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
-
- 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
- B05C5/0225—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
- B05C5/0237—Fluid actuated valves
Definitions
- the invention relates to an applicator head for dispensing a flowable medium and an applicator device with at least one such applicator head.
- it concerns the dispensing of adhesives and the use of hot glue.
- the invention can also be used for the controlled dispensing of cold glue or glue comprising aggressive (e.g., corrosive) components.
- the corresponding guns must be robust and allow a precise, highly accurate delivery of the medium.
- the application heads should be quickly switchable to portion or amount of adhesive to be able to apply with point or line precision.
- the guns should not be too big, as in the corresponding
- applicator heads should be used flexibly and as needed convertible or preferably switchable side or controllable control side.
- glue that contain additives that can be aggressive.
- the pH of a glue may e.g. lie in the acidic area.
- Glue may also contain corrosive or abrasive ingredients. In order to protect a gun from it, appropriate measures must be taken.
- the object is achieved by an applicator head according to claim 1 and by an applicator device with a corresponding control module according to claim 6.
- a first applicator head is specially designed for dispensing a flowable medium. It comprises a (nozzle) chamber inside the applicator head and a nozzle needle, a needle valve or a slider (collectively referred to herein as a "movable member") movably mounted inside the nozzle chamber and give each one for a short time
- the applicator head can also act in reverse, in that the movable element closes an outlet opening for a short time.
- There is a supply channel which is connected to the (nozzle) chamber and fluidly connectable to a supply line. Through the supply line and the supply channel, the flowable medium can be introduced into the (nozzle) chamber.
- a drive generates the opening movement or
- the order header comprises a
- Membrane suspension spanned surface through.
- the membrane serves to connect the lever arm movably to the gun.
- the membrane suspension serves as a seal to prevent leakage of the flowable medium from the (nozzle) chamber.
- the membrane serves to connect the lever arm movably to the gun.
- the membrane suspension serves as a seal to prevent leakage of the flowable medium from the (nozzle) chamber.
- the membrane is at all
- Embodiments temperature resistant and / or corrosion resistant and / or abrasion resistant and / or resistant to chemical additives in the medium.
- the membrane may comprise at least one sealing ring which serves as a seal and for elastic clamping of the
- Diaphragm in the application head is used. This embodiment can be used in all embodiments of the invention and provides a
- Such a metallic membrane is particularly suitable for alternating load with high frequency, ie for embodiments in which a very fast opening or closing is required.
- a metallic membrane is particularly advantageous and can be used in all embodiments of the invention.
- the invention is particularly suitable for thermoplastic (hot melt) adhesives. It is also suitable for aggressive types of glue and z. B. for cold glue.
- Fig. 1 is a schematic perspective view of a first
- Fig. 2 is a schematic sectional view of another
- Fig. 3A is a plan view of a membrane of another
- 3B is a sectional perspective view of a diaphragm suspension of another embodiment of the invention.
- Fig. 4 is an enlarged schematic sectional view of another
- Fig. 5 is a schematic side view of another
- 6A is a sectional view of another embodiment of the
- Fig. 7B is a schematic representation of the corresponding
- Fig. 8 is a schematic representation of another drive side
- Movement profile (movement PI) with only two parameters
- Fig. 9 is a schematic representation of another drive side
- Fig. 10 is a schematic sectional view of another
- Fig. 1 is an applicator 100 having a plurality of applicator heads 15 arranged in a row,
- the shape, arrangement and design of the outlet openings 12 may depend on whether a nozzle needle, a needle valve or a slider is used as a movable element 11 in the interior of the application head 15.
- Each of the outlet openings 12 is on or in a respective one
- Application head 15 is formed.
- Each applicator head 15 is specially designed for dispensing a flowable medium M, preferably of adhesive, and comprises a (nozzle) chamber 10 inside the applicator head 15.
- a nozzle needle 11 is in the interior of the (nozzle) chamber 10 and stored movable, wherein it releases the outlet opening 12 by an opening movement P of the nozzle needle 11.
- an arrow P is shown, which is directed upward. An opening movement in the direction of arrow P lifts the Nozzle needle 11 and this releases the outlet opening 12, so that the medium M can escape from the nozzle chamber 10 through the outlet opening 12 therethrough.
- four application heads 15 at the same time permanently emit a medium M in strip-like tracks (caterpillars). The strip shape is due to the passing z.
- B a paper web K or a workpiece or a substrate.
- the corresponding direction of movement is V
- a (multi-channel) control module 50 is shown, the control technology via a control connection 52 (also called control technology active connection) is connected to the drive 20.
- a control connection 52 also called control technology active connection
- Control module 50 may be used in all embodiments.
- a supply channel 13 is provided (see, e.g., Fig. 2) connected to the (nozzle) chamber 10.
- the feed channel 13 is fluidly connectable to a supply line 16 (see, e.g., Fig. 1) for introducing the flowable medium M into the (nozzle) chamber 10.
- a supply line 16 see, e.g., Fig. 1
- four separate supply lines 16 are indicated.
- a drive 20 for generating the opening movement P of the nozzle needle 11 is provided.
- the drive 20 is attached to the application heads 15 or flanged.
- the drive 20 includes its own drive 20 per applicator head 15 so that each exit opening 12 can be individually opened (i.e., independently of the others) and closed.
- a multi-channel control module 50 is used
- Embodiments in which the drive 20 is arranged at a distance from the application head 15, as can be seen, for example, in FIG. 2, are particularly preferred. However, it is important in the arrangement of the drive 20 with respect to the application head 15 (this statement applies to arrangements according to FIGS. 1 and 2) that the mutual distance is precisely defined and stable. This aspect is important, since any distance change can have an influence on the function or mode of action of the lever arm 30. Details of the lever arm 30 will be described below.
- FIG. 2 a section through a single applicator head 15 is shown in which the actuator 20 is spaced (i.e., spatially separated).
- the applicator head 15 according to the invention comprises per drive 20 a lever arm 30, the first extreme end 31 is movably attached to a rear end 14 of the nozzle needle 11 or other movable member and the second extremal end 32 is connected to the drive 20.
- a membrane suspension 33 with a membrane 34 is used, with the lever arm 30 extending through the membrane 34 of the membrane suspension 33.
- the membrane suspension 33 serves to connect the lever arm 30 movably with the applicator head 15.
- the membrane suspension 33 serves as a seal to prevent leakage of the flowable medium M from the (nozzle) chamber 10. That is, the membrane 34, or the membrane suspension 33 has a dual function. In addition, it has, depending on the design of the membrane 34 a protective function against temperature, corrosion, abrasion and chemical additives of the
- the (nozzle) chamber 10 is designed so that in its lower region near the outlet opening 12 a stop point 17, respectively a stop surface (also called needle seat) for the tip 18 of the nozzle needle 11 is provided.
- a stop surface also called needle seat
- the nozzle needle 11 is shown in the closed position, i. the tip 18 of the nozzle needle 11 is seated close to the attachment point 17 and no medium M can escape through the outlet opening 12.
- Outlet opening 12 is released and it can escape medium M.
- the nozzle needle 11 is movable in the region of the rear end 14 (knee joint-like) connected to the lever arm 30.
- the nozzle needle 11 is centered during a downward movement in the -Z direction.
- the medium M which flows from the supply channel 13 forth through the (nozzle) chamber 11 in the direction
- Outlet opening 12 flows to a stabilization, respectively self-centering of the nozzle needle 11 at.
- This type of "dangling" mounting or suspension can be used in all embodiments.
- the lever arm 30 is here designed so that it comprises a flat, rectangular or strip-shaped rod, which is optionally provided with holes 39 here. These holes 39 serve to make the rod lighter in order to reduce the mass to be accelerated. In addition, the holes 39 allow a displacement of the starting point A of the drive 20. Thus, if the effective lever arm is to be extended, then the drive 20 (respectively
- Lever arm takes place a reduction, ie. a big movement PI causes a small oppositely directed movement P.
- Reduction factor is shown in FIG. 2 is about 5: 1 (i.e., the absolute amount of the movement PI is about 5 times as large as the absolute amount of the movement P).
- the absolute amount of the movement PI is about 5 times as large as the absolute amount of the movement P.
- a reduction with a reduction factor between 2: 1 and 10: 1 is used.
- the lever arm 30 may also have any other rod or lever shape.
- the lever arm 30 is made of torsion-resistant material.
- the lever arm 30 should be as light as possible to a small to have moving or accelerated mass.
- the membrane 34 is used in all embodiments as a kinematic bearing, which carries a portion of the mass of the lever arm 30 / stores.
- the membrane 34 defines in all embodiments the exact pivot point or tipping point (virtual
- the lever arm 30 may be referred to as "free-floating" lever due to the special membrane bearing 34.
- a cylindrical rod 40 is provided on the lever arm 30 in the embodiment shown.
- This cylindrical rod 40 clamps or clamps the diaphragm 34 and thus provides a suspension of the lever arm 30 on the diaphragm 34. Details of an exemplary preferred arrangement are shown in FIG. This type of suspension can be at all
- Embodiments are used.
- the membrane 34 can comprise one or two sealing rings 35, which make it possible to clamp the membrane 34 elastically in the application head 15.
- Sealing rings 35 are optional.
- the purpose of clamping the
- Application head 15 a removable part or a lid (not shown in detail) include. When this part or lid is removed, the membrane 34 together with the optional sealing rings 35 can be inserted. Then, the said part or the lid is fixed again and the membrane 34 is clamped.
- Fig. 4 it can be seen that the rear of the membrane 34, d .h. on the side facing away from the (nozzle) chamber 10, an optional pressure support 38 is provided, which serves as a mechanical stop for the diaphragm 34.
- an optional pressure support 38 is provided, which serves as a mechanical stop for the diaphragm 34.
- the membrane 34 is preferably designed and arranged in all embodiments so that it is only subjected to bending, which increases the service life.
- a metallic membrane 34 is used, which is particularly suitable for alternating load with high frequency.
- the metallic membrane 34 is a membrane 34 in which either the entire membrane surface consists of a metal, or in which a planar membrane substrate (for example made of plastic) is provided with a metal layer / Metallevampfung.
- FIGS. 2 and 4 Furthermore, it can be seen in FIGS. 2 and 4 that a
- the lever arm thus provides for a definition of the under or translation and for a reversal of motion.
- FIG. 3A Details of a preferred embodiment of a membrane 34 are shown in FIG. 3A.
- the membrane 34 includes slots 36 to increase the elasticity.
- a central opening 37 is provided through which the lever arm 30 extends in the assembled state.
- the position of the sealing ring (s) 35 is shown in FIG. 3A indicated.
- This design of the membrane 34 is particularly suitable for metallic membranes 34 to give the metallic membrane 34 the necessary elasticity.
- Diaphragms 34 virtually define a virtual pivot axis VA.
- This virtual pivot axis VA is shown in FIG. 3 represented by a dot-dash line.
- FIG. 3B Details of a preferred embodiment of a membrane suspension 33 are shown in FIG. 3B.
- the attachment of the lever arm 30 can be seen on the diaphragm 34. This attachment is made by the rod 40, as described.
- the rod 40 is hollow inside to reduce the weight. So that no medium M can escape through the interior of the rod 40, the rod 40 can have caps 43 or sealing elements at both ends, for example.
- the position of the virtual pivot axis VA is also shown in FIG. 3B indicated. The details shown in Fig. 3B can be applied to all
- Fig. 5 shows details of another embodiment of the invention.
- the arrangement of the elements is different here, but the function is the same.
- a linear movement of the drive 20 is translated into an opening movement of the nozzle needle 11 in the interior of the application head 15.
- the drive 20 is here, as well as in Fig. 2, separately (i.e., spaced) from the applicator head 15.
- drive 20 is suitable in the various embodiments described a
- the corresponding frequency generates a corresponding linear movement PI (up and down movement), which passes through the effectively effective lever arm 30 a translation or translation to the nozzle needle 11 and there the
- Linear motion P produces.
- a piezoelectric drive 20 one works here preferably with a translation in order to translate the very small movements of the piezoelectric drive 20 into sufficiently large opening and closing movements P.
- an electro-magnetic drive 20 which is constructed according to the principle of a voice coil motor or a Lorentz coil.
- a 1: 1 lever translation or a reduction is particularly suitable.
- a voice coil motor or a Lorentz coil can be used in all embodiments.
- a voice coil drive 20 has the advantage that it is at rest is de-energized, ie. that the power consumption is lower than in previous ones
- the stroke in the region of the nozzle tip 18 or the outlet opening 12 in the direction of the Z-axis is preferably between 0.1 mm and 1 mm.
- 1 lever translation of the drive 20 must therefore make a correspondingly opposite movement PI with a stroke of 0.1 mm to 1 mm.
- Drive 20 may be arranged, as indicated by way of example in Fig. 5, the movement behavior of the nozzle needle 11 or other movable element can be adjusted or even regulated. If desired, a suitable movement profile can be deposited, so that the nozzle needle 11 is decelerated just before it hits the attachment point 17. This measure increases the life of the nozzle needle 11 and the applicator head 15.
- a corresponding driver module 21 and / or control module 50 can at all
- Embodiments are used.
- FIG. 7A A schematic representation of an exemplary movement profile (movement P) of the movable element 11 is shown in FIG. 7A.
- the motion profile P (t, Z) is composed of several line segments. In practice, preferably a movement profile P (t, Z) is included
- the movement profile P (t, Z) is a function of the time t and of the path Z.
- an opening and closing cycle has a time duration T.
- the time duration T is exemplary in ten equal lengths Disassembled clock units.
- Closing movement is preferably very steep, since it is important for the tearing behavior that with a large force, the outlet opening 18 quickly
- FIG. 7B shows a schematic illustration of the corresponding drive-side movement profile Pl (t, Z).
- the curve Pl (t, Z) here corresponds to the curve P (t, Z), wherein a Z-direction stretch around the
- Fig. 7B indicates that the reduction causes stretching (in the Z direction), which improves the parameterizability and / or controllability.
- a complete parameterization of the curve P (t, Z) can be given by the following pair-matrix values (if the curve P (t, Z) is a polygon train of straight segments):
- a complete parameterization of the curve Pl (t, -Z) can be given by the following pair-matrix values (if the curve Pl (t, -Z) is a polygon train of straight segments):
- FIG. 8 shows a schematic representation of a corresponding drive-side movement profile Pl * (t, -Z), which is defined here only by two parameters PA and PB.
- Motion profile only makes sense if you specify more than two parameters for parameterization.
- the parameters PA and PB of all embodiments are parameters correlated away.
- Fig. 9 is a schematic representation of the corresponding drive-side motion profile Pl (t, -Z) is shown, which is defined by four parameters PA, PB, PC and PD.
- the movement profile Pl (t, -Z) in FIG. 9 corresponds to the movement profile Pl (t, -Z) in FIG. 7B.
- the maximum points and Show / specify slope changes also specify other parameters.
- these further parameters can describe, for example, the course of the curve between two value pairs.
- the other parameters can also specify, for example, the cycle duration T and / or the timing (eg T / 10).
- an intelligent driver e.g., in the form of the driver module 21 and / or
- Control module 50 of the drive 20 is designed so that the current that is fed into the drive 20, is observed. If the current increases, then this is an indication that the nozzle needle 11 or the movable element is present at the stop point 17.
- a creeping adjustment of the stored in the driver module 21 is designed so that the current that is fed into the drive 20, is observed. If the current increases, then this is an indication that the nozzle needle 11 or the movable element is present at the stop point 17.
- Parametristician can be defined, which compensates for a wear of the needle tip 18 in that the movement PI on the
- Drive side is successively increased when the current signal indicates that the increase in current compared to earlier occurs later.
- the later occurrence of a current increase means namely that the needle tip 18 is present later than at the stop point 17. This is a sign of wear.
- the use of such intelligent control e.g., in the form of the driver module 21 and / or control module 50) increases the life of the applicator head 15 since the nozzle needle 11 or movable member only needs to be replaced later.
- an intelligent driver e.g., in the form of the driver module 21 and / or
- Control module 50 of the drive 20 is designed such that the movement of the nozzle needle 11 or of the movable element is regulated in accordance with a predetermined movement profile (eg Pl (t, -Z).) The switching times and the stroke of the nozzle needle 11 can be monitored and the order picture of the
- Application head 15 can be automatically corrected by the control module 50.
- the driver module 21 and / or the Control module 50 directly to each drive 20 so that the drive 20 directly with a 24 VDC signal (also directly from a PLC) can be controlled (PLC stands for programmable logic controller).
- PLC programmable logic controller
- Embodiments are used.
- an intelligent control of the drive 20 is designed on the drive side so that error, warnings, service or maintenance displays are issued.
- the control module 50 is equipped and / or programmed accordingly. This approach can be used in all embodiments.
- Application head 15 is possible, which is flowed through by the medium M. Especially with warm or hot medium M thereby reduce the problems that can be caused on the drive side otherwise by the high temperature.
- the thermal separation between the drive 20 and gun 15 is achieved without screw, as shown in FIG. 6A and the
- Section enlargement 6B can be seen.
- Isolation plate 44 is formed on the gun side with two positioning bolts 45 and on the drive side with four spacer / positioning bolts 46. The fixing of the application head 15 and drive 20 via two ropes 47th
- the lever arm 30 in all preferred embodiments, reverses the direction of travel (PI points in the opposite direction as P, see Fig. 2) and, depending on the setting of the lever arm lengths, one
- the invention enables a precise application of adhesive to measure. It can be used in electro-magnetic, electro-pneumatic, piezo-electric or electro-mechanical application heads 15, whether hot or cold glue process, whether based on travel or time, whether constant or variable
- Substrate speed are used.
- control module 50 (also called job control) can be integrated directly in the device (eg in a melter), or it can be provided as an independent unit. It is also possible according to the invention several application heads 15 of a common (multi-channel)
- Control module 50 to control and control, as shown in FIG. 1 indicated.
- Control module 50 is designed so that it from a PLC
- control module 50 has a connection to control systems via a common interface (e.g., a CAN
- control module 50 is common to all
- Embodiments a possibility for parameterization, as described.
- the parameterization can be done either directly on the controller 50, or the parameterization can indirectly via an interface of the Control module 50 done.
- a software module is used for parameterization.
- the term "parameterization” is used here to describe that the actuation of the applicator head (s) 15 takes place on the basis of parameters (preferably in the form of value pairs) .
- the parameters are converted by the control 50 into commands, manipulated variables or values which cause a result on or in the application head 15 (eg by conversion in the driver module 21)
- the parameters can be used, for example, to drive the drive 20 so that on the output side, ie on the movable element 11, a controlled opening movement P (t, Z) This can be done, for example, in all embodiments via a programmable
- Output voltage profile or output current profile on the drive 20 or the driver module 21 can be achieved.
- the parameters that are specified by the parameterization define z. B. the output voltage profile or
- Output current profile is then correlated with the movement profile Pl (t, -Z) and via the lever arm 30 with the movement profile P (t, Z).
- Fig. 10 shows a schematic sectional view of another
- Control circuit are indicated schematically. It is on the description of FIG. 2 referenced. Below are just the essential aspects of
- a control loop with a (displacement or position) sensor 53 here, for example, an inductive sensor
- a (displacement or position) sensor 53 here, for example, an inductive sensor
- Control module 50 on.
- the sensor 53 is configured to detect the current position (actual position) of the movable element 11.
- the (displacement or position) sensor 53 is shown schematically. It can also be arranged in a different location.
- the (displacement or position) sensor 53 is connected via a connection 55 to an input of the control module 50 to the Actual position to the control module 50 to pass.
- Positions Sensor 53 shows a different actual position, then in a control loop, the movable element 11 z. B. a little further in - Z-direction to achieve the final closed position (called end point monitoring).
- control module 50 If the control module 50 is designed to be self-learning, the corrected parameter corresponding to the closed position, in a
- Parameter memory 54 are stored. The next time you open and close the new parameter will be used.
- driver module 21 may be provided between the control module 50 and the drive 20 to establish the control connection between the control module 50 and drive 20.
- the driver module 21 may have parameters from
- Receive control module 50 implement in current or voltage variables (as control variables) that are impressed on the drive 20.
- control module 50 can also be connected directly to drive 20 by control technology (eg, by a control connection 52, as shown in FIG.
- the parameters PA, PB, etc. are taken from a parameter memory 54 and of the
- Driver module 21 then converts these parameters PA, PB, etc. into control variables. However, it is also possible for the control module 50 to further process parameters PA, PB, etc., in order then to transfer further processed parameters PA *, PB * etc. to the driver module 21.
- the further processing of the parameters PA, PB, etc. depends on the specific constellation and can, for example, take into account the oversampling or reduction factor.
- the control module 50 may be provided, for example, with a module for Self-detection of a clogged nozzle be designed. This self-detection can be detected on the basis of direct and / or indirect measurement information (eg from a sensor 53) an approaching nozzle blockage. It may also include a module that allows detection of an impending problem (early detection). Preferably, in this case, a preventive warning is given by the control module 50, for example via an optional LED maintenance detector 60 (see FIG. 10). Self-detection and early detection can be implemented particularly advantageously in embodiments having a control loop as described above.
- control module 50 makes a
- initial correction values can be derived, which are then used in productive use.
- the invention additionally or alternatively guarantees a fixed reaction time (response time) of e.g. 1ms, what for the control z. B. via a PLC control is important.
- All applicator heads 15 behave the same with regard to the fixed reaction time (response time) and / or the retention time.
- the invention provides the only electrically driven gun 15, which is controllable with PLC without booster and with a proprietary control.
- the application head 15 is designed so that it is closed even in the non-activated mode or when the device is switched off.
- the application head 15 is preferably equipped with a sensor which monitors the sealing function or tightness of the membrane 34.
- This sensor is designed and arranged in such a way that the medium M emerging in the event of a fault is detected. The error case is sent to the
- Control 50 transmitted.
- the controller 50 stops with a corresponding control signal the glue delivery (for example, by switching off a pump). This feature has the advantage that when the membrane 34 breaks, it can be prevented that the escaping medium M is conveyed into the machine.
- Inductive, capacitive or optical sensors are particularly suitable for monitoring the sealing function or tightness of the diaphragm 34, which are preferably in the rear region (that is, in the medium-free space) of the
- the applicator head 15 is equipped in all embodiments with a monitoring of the glue pressure.
- the controller 50 evaluates (pressure) signals from which the glue pressure profile can be derived.
- the evaluation of the glue pressure history allows the controller 50 to make a diagnosis in terms of glue delivery. In this way one can recognize, for example, the initiation of a nozzle clogging and / or the occurrence of a leak on the membrane 34 and react to it.
- This form of monitoring of the glue pressure by means of the controller 50 allows a simple and reliable monitoring of the adhesive application.
- the applicator head 15 is equipped in all embodiments with a so-called stroke control.
- This stroke control can be used for flow control, ie. be used for metering the medium to be delivered M.
- stroke control is preferably a way or
- Position sensor in the application head 15 in the region of the movable element 11 and / or arranged in the region of the lever arm 30 is thus reported to the controller 50 and can be used there for control purposes.
- a stroke control and / or sensor monitoring and / or monitoring of the glue pressure curve include.
- Lever arm 30 first extremal end 31 second extremal end 32nd
- PA, PB, PC, PD further processed parameters PA *, PB *
Landscapes
- Coating Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11700695.7A EP2528695B1 (de) | 2010-01-27 | 2011-01-25 | Auftragskopf zum abgeben eines fliessfähigen mediums und auftragsvorrichtung zum abgeben eines fliessfähigen mediums |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10151806A EP2353731A1 (de) | 2010-01-27 | 2010-01-27 | Elektroauftragskopf zum Abgeben eines fliessfähigen Mediums und Vorrichtung mit einem solchen Elektroauftragskopf |
PCT/EP2011/050991 WO2011092163A1 (de) | 2010-01-27 | 2011-01-25 | Auftragskopf zum abgeben eines fliessfähigen mediums und auftragsvorrichtung zum abgeben eines fliessfähigen mediums |
EP11700695.7A EP2528695B1 (de) | 2010-01-27 | 2011-01-25 | Auftragskopf zum abgeben eines fliessfähigen mediums und auftragsvorrichtung zum abgeben eines fliessfähigen mediums |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2528695A1 true EP2528695A1 (de) | 2012-12-05 |
EP2528695B1 EP2528695B1 (de) | 2015-08-26 |
Family
ID=42078945
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10151806A Withdrawn EP2353731A1 (de) | 2010-01-27 | 2010-01-27 | Elektroauftragskopf zum Abgeben eines fliessfähigen Mediums und Vorrichtung mit einem solchen Elektroauftragskopf |
EP11700695.7A Active EP2528695B1 (de) | 2010-01-27 | 2011-01-25 | Auftragskopf zum abgeben eines fliessfähigen mediums und auftragsvorrichtung zum abgeben eines fliessfähigen mediums |
EP11700852A Withdrawn EP2528696A1 (de) | 2010-01-27 | 2011-01-25 | Elektroauftragskopf zum abgeben eines fliessfähigen mediums und vorrichtung mit einem solchen elektroauftragskopf |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10151806A Withdrawn EP2353731A1 (de) | 2010-01-27 | 2010-01-27 | Elektroauftragskopf zum Abgeben eines fliessfähigen Mediums und Vorrichtung mit einem solchen Elektroauftragskopf |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11700852A Withdrawn EP2528696A1 (de) | 2010-01-27 | 2011-01-25 | Elektroauftragskopf zum abgeben eines fliessfähigen mediums und vorrichtung mit einem solchen elektroauftragskopf |
Country Status (8)
Country | Link |
---|---|
US (4) | US20130026198A1 (de) |
EP (3) | EP2353731A1 (de) |
CN (2) | CN102821870B (de) |
BR (2) | BR112012018890A2 (de) |
DE (1) | DE202011000179U1 (de) |
ES (1) | ES2553142T3 (de) |
HK (1) | HK1179207A1 (de) |
WO (2) | WO2011092164A1 (de) |
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CN102883990B (zh) | 2009-09-21 | 2015-01-21 | 诺信公司 | 气动致动液体分配阀 |
WO2012100844A1 (de) | 2011-01-25 | 2012-08-02 | Robatech Ag | Hebelarmaufhängung für einen austragskopf |
US9120115B2 (en) | 2012-10-25 | 2015-09-01 | Nordson Corporation | Dispensing systems and methods for monitoring actuation signals for diagnostics |
EP2772347B1 (de) * | 2013-02-27 | 2018-03-28 | CEL Technology Limited | Druckkopfanordnung für einen 3D-Drucker |
KR101614312B1 (ko) * | 2014-11-18 | 2016-04-22 | 주식회사 프로텍 | 압전 디스펜서 및 압전 디스펜서의 작동 스트로크 보정방법 |
US11141755B2 (en) | 2015-05-22 | 2021-10-12 | Nordson Corporation | Piezoelectric jetting system and method with amplification mechanism |
US11536259B2 (en) * | 2016-01-16 | 2022-12-27 | Musashi Engineering, Inc. | Liquid material ejection device |
US10798783B2 (en) * | 2017-02-15 | 2020-10-06 | Continuous Composites Inc. | Additively manufactured composite heater |
CN108745785B (zh) * | 2018-07-25 | 2023-08-15 | 江苏一控真空注胶技术有限公司 | 一种模块式注胶头阀岛 |
CN109158261B (zh) * | 2018-09-20 | 2024-01-09 | 旷泰科技(上海)有限公司 | 一种可调间距的点胶机构 |
WO2020154242A1 (en) * | 2019-01-21 | 2020-07-30 | Nordson Corporation | System and method for dispenser control |
CN109909116B (zh) * | 2019-04-10 | 2020-08-11 | 中南大学 | 模块式压电驱动精密喷射阀 |
CN112517336B (zh) * | 2019-09-19 | 2023-07-21 | 深圳鼎晶科技有限公司 | 推拉式多针点胶阀及其点胶方法 |
SE544049C2 (en) * | 2020-04-07 | 2021-11-23 | L3F Sweden Ab | Valve assembly for ejection of a viscous media in a 3D printing device |
CN113714045A (zh) * | 2021-10-11 | 2021-11-30 | 湖南贝尔动漫科技有限公司 | 玩具生产过程中多个胶点同步施胶的点胶机 |
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2010
- 2010-01-27 EP EP10151806A patent/EP2353731A1/de not_active Withdrawn
-
2011
- 2011-01-25 BR BR112012018890A patent/BR112012018890A2/pt not_active IP Right Cessation
- 2011-01-25 BR BR112012018895A patent/BR112012018895A2/pt not_active IP Right Cessation
- 2011-01-25 DE DE202011000179U patent/DE202011000179U1/de not_active Expired - Lifetime
- 2011-01-25 EP EP11700695.7A patent/EP2528695B1/de active Active
- 2011-01-25 WO PCT/EP2011/050993 patent/WO2011092164A1/de active Application Filing
- 2011-01-25 US US13/575,414 patent/US20130026198A1/en not_active Abandoned
- 2011-01-25 ES ES11700695.7T patent/ES2553142T3/es active Active
- 2011-01-25 US US13/575,397 patent/US20130026197A1/en not_active Abandoned
- 2011-01-25 EP EP11700852A patent/EP2528696A1/de not_active Withdrawn
- 2011-01-25 WO PCT/EP2011/050991 patent/WO2011092163A1/de active Application Filing
- 2011-01-25 CN CN201180016182.6A patent/CN102821870B/zh active Active
- 2011-01-25 CN CN2011800162585A patent/CN102883821A/zh active Pending
- 2011-06-07 US US13/981,854 patent/US9296008B2/en active Active
-
2013
- 2013-05-23 HK HK13106110.7A patent/HK1179207A1/zh not_active IP Right Cessation
-
2014
- 2014-07-24 US US14/339,831 patent/US20140332569A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011092163A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102821870A (zh) | 2012-12-12 |
US20140054331A1 (en) | 2014-02-27 |
US9296008B2 (en) | 2016-03-29 |
ES2553142T3 (es) | 2015-12-04 |
US20130026197A1 (en) | 2013-01-31 |
WO2011092163A1 (de) | 2011-08-04 |
CN102821870B (zh) | 2016-05-04 |
CN102883821A (zh) | 2013-01-16 |
EP2528696A1 (de) | 2012-12-05 |
EP2528695B1 (de) | 2015-08-26 |
DE202011000179U1 (de) | 2011-06-09 |
BR112012018890A2 (pt) | 2016-04-12 |
EP2353731A1 (de) | 2011-08-10 |
US20140332569A1 (en) | 2014-11-13 |
BR112012018895A2 (pt) | 2016-04-12 |
US20130026198A1 (en) | 2013-01-31 |
HK1179207A1 (zh) | 2013-09-27 |
WO2011092164A1 (de) | 2011-08-04 |
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