EP2485889A1 - Vorrichtung und verfahren zur weiterverarbeitung, insbesondere beleimung, von sackhalbzeugen - Google Patents
Vorrichtung und verfahren zur weiterverarbeitung, insbesondere beleimung, von sackhalbzeugenInfo
- Publication number
- EP2485889A1 EP2485889A1 EP10759869A EP10759869A EP2485889A1 EP 2485889 A1 EP2485889 A1 EP 2485889A1 EP 10759869 A EP10759869 A EP 10759869A EP 10759869 A EP10759869 A EP 10759869A EP 2485889 A1 EP2485889 A1 EP 2485889A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glue
- valve
- pressure
- valves
- packaging
- 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
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
- 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
- B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
- B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of 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
- B05C5/027—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
- B31B50/622—Applying glue on already formed boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/006—Controlling; Regulating; Measuring; Safety measures
Definitions
- the invention relates to a device for gluing packaging semi-finished products according to the preamble of claim 1 and a corresponding method according to the preamble of claim 10.
- Devices for gluing packaging semi-finished products are used inter alia in the production of various types of bags. Since bags are made in a variety of sizes, the glue tracks must be applied format-appropriate.
- the order of a format-appropriate glue track is usually carried out by bringing a mounted on a rotating roller format part in a revolution of the format roller with a glue roller or other Leim arrived- or transfer parts in contact and thereby applied with glue.
- the format plate transfers the glue stored on it to the respectively to be bonded areas of the later bag bottoms or the slip.
- the format part is provided with characteristic elevations, which are adapted to a specific sack format.
- EP 1 648 688 B1 shows a bottom-laying device with a gluing station, in which several application heads extrude glue onto semi-finished sacks.
- glue valves are mounted on each of these guns. These glue valves are assigned one or more glue outlet openings, from which the glue is applied to the bag components.
- the production of a format-appropriate glue trace is now done by a control unit selectively activates these glue valves. In this way, a wide variety of glue profiles can be realized. The need to maintain a large number of format parts is eliminated.
- the object of the present invention is to propose an apparatus and a method in which errors can be detected with less effort and optionally shut down.
- the invention takes advantage of the fact that in the glue lines by the opening and closing of the valves, which should work smoothly to ensure a proper glue application, changes in the pressure result.
- the easiest way is to measure the static pressure in the glue lines. This goes back when the glue lines are opened and the glue sets in motion, so additionally hydrodynamic pressure pronounced.
- glue lines are also to be understood as meaning the lines within a valve.
- the measured values can be prepared or used in different ways. It is advantageous if, for this purpose, at least one means for passing on the pressure measurement value is provided, with which the pressure measurement value can be displayed to a machine operator and / or forwarded to a control device. Pressure readings that do not meet expectations can provide an indication of pre-existing or even imminent disruptions. Both the operator and the controller can take countermeasures.
- a suitable display device must be provided in order to display the measured values to the machine operator.
- the operator can also derive information derived from the measured values. are displayed. This can be, for example, a warning if a pressure reading or a difference of pressure readings exceeds or falls below a predetermined value.
- the pressure sensor can be seen in this invention - in the direction of glue flow - seen before or after the valve. If the sensor is located in front of the valve, it can be assumed that the static pressure to be measured is higher when the valve is closed than when the valve is open. In the case of the arrangement behind the valve, the pressure conditions are rather reversed.
- the valve is often a component provided with a plug or socket through which the energy is supplied for opening and closing.
- the pressure sensor can now be integrated in this valve, ie the valve and sensor represent a component.
- the assembly of the device for further processing of semi-finished sacks can be greatly simplified.
- the measured value for the pressure can then also be read out via the plug and / or the socket. So it is only an electrical cable necessary.
- the glue will flow after opening the valves in the direction of glue application openings, which are in a gluing position to the packaging semi-finished products.
- the semifinished packaging products to be glued are guided past the gluing openings.
- At least one further sensor measures the characteristics of the working current, which is supplied to the valves for opening and closing measures, this is advantageous.
- Characteristics of the working current can be physical quantities such as current or voltage or the like.
- a control device can advantageously be set up in such a way that it compares the values of the at least one pressure sensor and / or the measured values of the at least one further sensor with nominal values. These setpoints can be present as individual values, but also as temporal course of the respective physical value or in a similar manner.
- a comparison of the values of pressure sensors with the values of the other sensors can also be helpful. In particular, the comparison of the time course of these values can lead to findings on the opening behavior of the valves and thus also the glue application behavior. Also, a comparison of the same physical values to different valves brings advantages. A comparison of such values provides insights into differences between the valves and thus to possible faults.
- a sensor is associated with several valves - for example, measures the pressure in a Leim ein, in the course of which a plurality of glue valves is - then at least one deviation in the pressure curve at the opening of several valves can be determined. If the valves are opened and closed at different times, it is possible to assign a corresponding "pressure response" to the opening of each valve.
- a rinse program may purposely purify the glue application device by passing through a suitable, preferably leachable, and low viscosity
- so-called Newtonian fluids whose viscosity depends only on the temperature but not on the pressure itself, for example, are suitable for this purpose
- Devices for gluing semi-finished sacking usually commonly used glue is not Newtonian liquid. Newtonian fluids always lead to the same pressure response.
- the pressure sensor can advantageously be arranged at a bottleneck of the glue line system. At such bottlenecks, the glue has to flow faster than in the other glue line areas when the glue valve (s) are open. As a result, the dynamic pressure in the narrows increases and the static pressure decreases more as a result of valve opening. Stronger variations in static pressure are better to measure than smaller ones.
- Constrictions are advantageous, which are narrowed compared to the normal line system by a factor between 1 and 2. Since, according to the law of Hagen-Poiseuille, the pressure depends on the fourth power of the radius, a narrowing by one of the stated factors already leads to a very strong pressure change in comparison with the non-narrowed line system.
- the aforesaid viscosity measuring system can measure the volume flow through a pipe (it may also be known to the system from the beginning) and also measure the pressure drop in the line. Then the viscosity can be determined by the law of Hagen-Poisseuille.
- valves with limited function which deviate from setpoints or from the actual values of the other valves.
- the deviation may be in a lower maximum value, for example, the drop in the static pressure.
- the control device may interrupt the operation of the gluing station and initiate remedial measures, such as the execution of a washing program. Also appropriate are warnings to the operating personnel.
- valves which, judging by the course of the actual values, can be actuated too slowly or too late to compensate for the resulting "dead time" (longer actuation time) The same applies to the change of the activation times of the valves concerned.
- the dead time will be defined as the time between a triggering trigger signal intended to trigger the valve opening, such as the working current, and the actual valve opening, which is measurable via the measured pressure change.
- Fig. 1 shows a device for gluing packaging semi-finished products
- Fig. 1 shows a gun 1, as it is used in a Beleimungsstation in Bodenlegevorraum invention.
- This application head 1 is composed of a job plate 2, to which valves 3 are attached.
- the glue is supplied to the application head 1 via the glue supply line 4.
- the gluing station are fed in the direction x unprimed labels 5.
- Such labels are used, for example, to add cross bottoms of cement sacks. Especially on cement sacks but also valve leaflets are used.
- Each valve 3 is assigned in the non-glued sheets 5 side facing the application plate 2 one or a group of glue outlet openings.
- the glue flow to the glue outlet opening can be made or interrupted by the associated valve 3. In this way, it is possible to apply 5 different glue tracks on the unprimed label, which run parallel to the conveying direction x of the unprimed label 5.
- a regularly interrupted glue trace 6 can be applied. Also can be produced short traces of glue 7, broken glue marks 8 and continuous glue traces 9. If there is no unsealed label 5 under the application head 1, the glue flow through all valves 3 is interrupted in order not to pollute the gluing station unnecessarily.
- FIG. 2 shows the time curve 12 of the static pressure in a first glue line section 10 (in FIG. 4).
- the glue speed vi is sufficient to convey the glue volume required per unit of time through the line section 10.
- a significantly higher glue speed v2 is required with open valve to promote enough glue.
- the force for accelerating the glue is provided from the static glue pressure Pst. Since the sum of static Pst and dynamic pressure is always the same, the static decreases in the narrower line section 1 1 stronger than in the other 10.
- the signals of the corresponding pressure sensor DS2 are therefore better to evaluate than the signals of the pressure sensor DS1, the pressure controlled in the other Leimtechnischs Kunststoff (among other things, because of the signal to noise ratio).
- FIG. 5 shows a section through a device according to the invention for gluing packaging semifinished products.
- This device is different in its construction of the device shown in Figure 1, inter alia, in that the glue reservoir 21 is mounted in the z-direction over the glue valves Va-f.
- the glue reservoir 21 is supplied with glue through the glue line 20.
- the glue is supplied via further glue lines 23 af valves V af, which control the glue flow in the lines 23 af by opening or closing.
- the glue lines 23 af and the glue distribution lines mentioned later extend in a plate 26, which also carries the valves V af and the pressure sensors DS af.
- the glue flows past the valves V af into the distribution lines 25 which supply the glue to the glue outlet openings 24. Through these openings, the glue is extruded on the packaging semi-finished products, not shown here packaging semi-finished products - which may be, inter alia, slips or cross bottoms - extruded.
- the glueing station is equipped only with a DS pressure sensor, which, like the DS3 sensor, measures the static pressure in a glue reservoir or glue line associated with several valves V af, it is difficult to detect any discrepancies or changes in the behavior of the valve Pressure to the individual valves Va-f assign.
- a DS pressure sensor which, like the DS3 sensor, measures the static pressure in a glue reservoir or glue line associated with several valves V af
- the valves Va-f can be supplied via the power lines 27a-f with the working current required for switching the valves.
- a sensor Sl a-f is arranged in each case, with the characteristic values of the working current can be measured.
- This sensor Sl a-f may be a current measuring sensor. Also voltage, resistance or other measuring sensor are conceivable.
- FIGS 6 and 7 are concerned with the timing of the caused by the opening of a valve pressure curve 30 and the course 32 of the working current I of a valve.
- To the pressure curve 30 is merely to refer to the statements to the figures 2 and 3.
- FIG. 7 shows the current profile which results during an opening and closing cycle of a valve.
- the rise and fall of the working current which can be measured with the sensor Sl, shows a slightly exponential course, since the glue valve in question by the force of a coil to be energized is opened.
- the spool moves a needle whose movement opens the valve.
- the power is switched off again, it also drops back in the form of a decay function due to the inductance of the coil.
- the needle is pushed back into its original position by a spring so that the valve is closed again.
- the clamp T o denotes the opening dead time, which is measured here between the time at which the working current reaches a threshold value S and the time at which the pressure Pst in the glue line reaches its minimum.
- the closing dead time Ts sketched by the clamp Ts is measured between the beginning of the current drop and the reaching of the maximum pressure. If the valves are supplied by a control device triggers a power controller, which then provides the working flow for the valve, it may be advantageous to the ⁇ réellesstotzeit between the known at the time of the trigger signal and the step response of the static pressure (reaching the Minimums). In this way, the opening dead time of the entire system would be detected. Similarly, the dead time for the closing process could also be determined.
- the An Kunststoffzeitn can be changed after the determination of the dead time so that the pressure response in the glue line - and accordingly the slightly later beginning glue application on the packaging semi-finished - takes place again at the desired time or in a tolerance range around the target time.
- a high read speed of the pressure sensor is advantageous.
- the tolerance range should be set around the setpoint to 0.3 ms.
- a read rate of at least 3 kHz ie 3000 individual measurements per second
- a reading rate of 15 kHz to draw conclusions from the measured values not only on the opening or closing dead time, but also on the opening or closing behavior of the valve.
- the comparison of an actual opening or closing behavior with a desired behavior or the original behavior can provide indications of defects which have already occurred or are imminent. Thus, by early detection of errors, sudden or unplanned machine downtime can be avoided.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Making Paper Articles (AREA)
- Coating Apparatus (AREA)
- Package Closures (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009045497 | 2009-10-08 | ||
DE102010030330A DE102010030330A1 (de) | 2009-10-08 | 2010-06-22 | Vorrichtung und Verfahren zur Weiterverarbeitung von Sackhalbzeugen |
PCT/EP2010/064147 WO2011042320A1 (de) | 2009-10-08 | 2010-09-24 | Vorrichtung und verfahren zur weiterverarbeitung, insbesondere beleimung, von sackhalbzeugen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2485889A1 true EP2485889A1 (de) | 2012-08-15 |
EP2485889B1 EP2485889B1 (de) | 2019-07-31 |
Family
ID=43259752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10759869.0A Not-in-force EP2485889B1 (de) | 2009-10-08 | 2010-09-24 | Vorrichtung und verfahren zur weiterverarbeitung, insbesondere beleimung, von sackhalbzeugen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2485889B1 (de) |
JP (1) | JP5726885B2 (de) |
DE (1) | DE102010030330A1 (de) |
WO (1) | WO2011042320A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011117295A1 (de) * | 2011-11-01 | 2013-05-02 | Focke & Co. (Gmbh & Co. Kg) | Verfahren zur Erkennung von Störungen und zur Erfassung des Ventilhubs eines Leimventils |
FR3079429B1 (fr) * | 2018-03-28 | 2023-11-03 | Faurecia Interieur Ind | Dispositif d'application d'un liquide et installation d'application |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4896500A (en) * | 1989-05-15 | 1990-01-30 | Westinghouse Electric Corp. | Method and apparatus for operating a combined cycle power plant having a defective deaerator |
JPH05502624A (ja) * | 1989-12-04 | 1993-05-13 | テック―エス インコーポレイテッド | 缶端部封缶剤塗布機械における欠陥検出装置及び方法 |
US5687092A (en) * | 1995-05-05 | 1997-11-11 | Nordson Corporation | Method of compensating for changes in flow characteristics of a dispensed fluid |
JP3541685B2 (ja) * | 1998-08-04 | 2004-07-14 | 日産自動車株式会社 | 電磁駆動弁の電流制御装置 |
US6401976B1 (en) * | 2000-03-23 | 2002-06-11 | Nordson Corporation | Electrically operated viscous fluid dispensing apparatus and method |
FI20002251A (fi) * | 2000-10-12 | 2002-04-13 | Metso Paper Inc | Menetelmä ja laite spraysuuttimen puhdistamiseksi |
BR0311946A (pt) * | 2002-09-13 | 2005-04-05 | Windmoeller & Hoelscher | Dispositivo para a formação de um perfil de cola para sacos de fundo cruzado |
DE10242732A1 (de) * | 2002-09-13 | 2004-03-25 | Windmöller & Hölscher Kg | Bedienungsstation und ein Bedienverfahren für einen Kreuzbodenleger |
DE10330751A1 (de) * | 2003-07-07 | 2005-02-10 | Windmöller & Hölscher Kg | Bodenlegevorrichtung für Papiersäcke |
DE10330750B4 (de) | 2003-07-07 | 2005-09-15 | Windmöller & Hölscher Kg | Bodenlegevorrichtung für Papiersäcke |
US7462377B2 (en) * | 2004-04-30 | 2008-12-09 | Nordson Corporation | Methods for regulating the placement of fluid dispensed from an applicator onto a workpiece |
US7541069B2 (en) * | 2005-03-07 | 2009-06-02 | Sub-One Technology, Inc. | Method and system for coating internal surfaces using reverse-flow cycling |
DE102005046660B4 (de) | 2005-09-29 | 2016-02-11 | Windmöller & Hölscher Kg | Herstellvorrichtung und -verfahren von Säcken oder Sackhalbzeugen umfassend eine Messung von Leimaufträgen |
DE102007057820C5 (de) * | 2007-11-30 | 2020-07-16 | Windmöller & Hölscher Kg | Gegenlage Düsenbeleimung |
-
2010
- 2010-06-22 DE DE102010030330A patent/DE102010030330A1/de not_active Withdrawn
- 2010-09-24 EP EP10759869.0A patent/EP2485889B1/de not_active Not-in-force
- 2010-09-24 WO PCT/EP2010/064147 patent/WO2011042320A1/de active Application Filing
- 2010-09-24 JP JP2012532533A patent/JP5726885B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2011042320A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2485889B1 (de) | 2019-07-31 |
JP5726885B2 (ja) | 2015-06-03 |
JP2013507265A (ja) | 2013-03-04 |
WO2011042320A1 (de) | 2011-04-14 |
DE102010030330A1 (de) | 2011-07-28 |
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