WO2015172932A1 - Dispositif et procédé de détermination de propriétés matérielles d'une feuille continue de matériau d'emballage, de préférence dans une machine d'emballage, ainsi que machine d'emballage - Google Patents

Dispositif et procédé de détermination de propriétés matérielles d'une feuille continue de matériau d'emballage, de préférence dans une machine d'emballage, ainsi que machine d'emballage Download PDF

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Publication number
WO2015172932A1
WO2015172932A1 PCT/EP2015/056637 EP2015056637W WO2015172932A1 WO 2015172932 A1 WO2015172932 A1 WO 2015172932A1 EP 2015056637 W EP2015056637 W EP 2015056637W WO 2015172932 A1 WO2015172932 A1 WO 2015172932A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging material
material web
web
friction
packaging
Prior art date
Application number
PCT/EP2015/056637
Other languages
German (de)
English (en)
Inventor
Andre Philipp
Hans-Peter Stadel
Berend Oberdorfer
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2015172932A1 publication Critical patent/WO2015172932A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/107—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/044—Sensing web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B65H26/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs for variation in tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/13—Thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/37—Elasticity modulus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/81—Packaging machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/02—Measuring coefficient of friction between materials

Definitions

  • Device and method for detecting material properties of a packaging material web preferably in a packaging machine and
  • the invention relates to a device and a method for detecting material properties of a packaging material web, preferably in one
  • Packaging machine according to the preambles of the two independent claims. Furthermore, the invention relates to a packaging machine,
  • a device according to the preamble of claim 1 is known from WO
  • a deflection roller for a packaging material web is provided, in which over the length of the deflection roller a sensor element is arranged on the surface of the deflection roller, which is used for measuring the tension of the packaging material transversely to the conveying direction of
  • Packing material is formed.
  • the feed rate of the packaging material web or other parameters are influenced.
  • Material properties of a packaging material web it is known for example from WO 2004/05731 1 A1 to determine a coefficient of friction of a packaging material web.
  • the device known from the cited document has a friction wheel whose surface is arranged in operative connection with the surface of a packaging material web, wherein the packaging material web is guided around a deflection roller. By detecting a required torque, which is required to To prevent the friction wheel on the movement is closed by means of the known device to the coefficient of friction of the packaging material web.
  • the invention has the object, a device for detecting material properties of a packaging material, preferably in a packaging machine, according to the preamble of claim 1 such that the device is designed not only during operation or web tension and / or coefficient of friction occurring during processing of the packaging material web
  • Packing material to detect but is also suitable to capture a batch-to-batch of the packaging material material property changing, in particular their specific elasticity. This should make it possible, in particular by means of the device
  • Packaging material web in particular to a tearing of the packaging material web comes.
  • This object is achieved in a device for detecting material properties of a packaging material web, in particular in a
  • Packaging machine with the features of claim 1 achieved in that a device for supplying and forwarding the packaging material web is provided to and from the first deflection, which is adapted to fix the packaging material web in a first operating state and preferably in a second operating state, the packaging material lead friction, and that the sensor device is adapted to detect both friction and web tension of the packaging material web.
  • a device for supplying and forwarding the packaging material web is provided to and from the first deflection, which is adapted to fix the packaging material web in a first operating state and preferably in a second operating state, the packaging material lead friction, and that the sensor device is adapted to detect both friction and web tension of the packaging material web.
  • Packaging material web to and from the first deflection in a first
  • the deflection device is supplied with as little friction as possible, in order to ensure, during the second operating state, friction values and / or web tension of the packaging material web during operation in the region of the first
  • Forwarding of the packaging material web to and from the first deflecting device for influencing a wrap angle of the packaging material web on the first deflecting device in relation to the first deflecting device is changeable. Such a design makes it possible to detect different
  • the device has at least two, in the conveying direction of the packaging material before and behind the first deflection deflecting cylinder arranged for the packaging material whose
  • Vacuum source are connectable, wherein the surfaces of the deflection cylinder, the overpressure source and the vacuum source are formed, the
  • the sensor device is designed to detect a force running perpendicular to the plane of the packaging material web for detecting the web tension of the packaging material web and to detect the coefficients of friction
  • a force extending in the longitudinal direction of the packaging material web is very particularly preferred. This makes it possible, during the second operating state, to simultaneously determine both the actual web tension of the packaging material web and its current friction coefficient.
  • the sensor device is additionally designed to have a thickness distribution of the packaging material web transversely to the latter
  • the two deflection devices are arranged on a common support frame. As a result, a particularly compact construction of the device is achieved.
  • the senor device is coupled to a control device which actuates a feed drive for the packaging material web as a function of the detected measured values.
  • this has a plurality of sensor elements, each having two sensors connected to each other, wherein the one sensor for
  • Detecting the web tension and the other sensor is designed for detecting the coefficient of friction of the packaging material web.
  • the two sensors are coupled to one another via a clamping element acting as an overload protection and adjusting means.
  • a clamping element acting as an overload protection and adjusting means.
  • the invention also includes a method for detecting
  • Packaging material web is brought.
  • the method according to the invention provides that material properties of the packaging material web are determined during a standstill phase, preferably in the case of a new packaging material web, and during a preferably continuous conveying of the packaging material web in the region of a sensor device during the processing of the packaging material web.
  • a new packaging material web in the sense of the invention is understood to mean a packaging material web which is newly supplied to the packaging machine and usually in
  • Roll form is stocked.
  • a certain length having packaging material is characterized in particular by the fact that this in
  • Dehnungsl. has elasticity properties, by means of which can be closed to a specific maximum web tension, which must not be exceeded, so that the packaging material web is not damaged or breaks.
  • a preferred embodiment or embodiment of the method according to the invention provides that during the standstill phase, the elasticity and / or the thickness distribution of the packaging material web and during the promotion of
  • Packaging material web tension and / or friction coefficients are determined. To optimize the performance of the packaging machine, it is particularly preferred that, depending on the values determined
  • Web tension and / or friction values a feed drive for the packaging material web is controlled such that the values of the web tensions are below a limit.
  • an optimized performance is achieved if the feed drive is controlled in such a way that in terms of maximum power between the determined values of the web tension and the limit, there is only a safety distance which precludes damage to the packaging material web.
  • the device according to the invention or the method according to the invention can be applied to a large number of different packaging machines which process packaging material webs, but in particular at
  • Packaging machines for the manufacture of packaging are particularly preferred.
  • the use in tubular bag machines in which the optimized delivery of the packaging material web to a forming shoulder has a significant influence both on the performance and on the quality of the packages produced.
  • FIG. 1 in a simplified representation of a packaging machine in the form of a
  • Tubular bag machine with a device according to the invention for determining material properties of a packaging material web
  • Fig. 2 shows a device according to the invention in perspective
  • Fig. 3 is a force transducer, as in the apparatus of FIG .. 2
  • FIG. 4 shows the device according to FIG. 2 in a first operating position in a partially sectioned side view
  • FIG. 5 shows the device according to FIG. 4 in a second operating state, likewise in a partially sectioned side view
  • Fig. 6 is a flowchart for explaining the different
  • Packaging material web over the web width of the packaging material web.
  • FIG. 1 shows in a greatly simplified form a packaging machine 100 in the form of a tubular bag machine.
  • the packaging machine 100 processes to produce non-illustrated tubular bag packs in the form of a packaging material roll 1 stocked packaging material web 5, for example in the form of a heat-sealable plastic film.
  • the packaging material web 5 is by means of several, for example by means of two, a feed drive for the
  • packaging machine 100 in addition to the two pairs of preferred rollers 2, 3 in practice a plurality of further deflection and / or conveying devices for the packaging material web 5 has.
  • packaging material web 5 in practice on its conveying path of the
  • the tubular bag machine therefore also has a non-illustrated
  • Essential to the invention is the use of a device 10 according to the invention for detecting or determining material properties of the packaging material web 5.
  • the device 10 is arranged in the region between the two feed roller pairs 2, 3. According to the
  • control device 8 of the packaging machine 100 as input values.
  • the control device 8 comprises an algorithm on the basis of which, in conjunction with the measured values detected by the device 10, the material properties of the packaging material web 5 are concluded.
  • the control device 8 is adapted to the feed drive or the
  • Feed roller pairs 2, 3 of the packaging machine 100 in response to the measured values detected in order to avoid overloading or damage to the packaging material web 5 on the transport of the packaging material roll 1 to the forming shoulder 101.
  • the device 10 shown in the overall illustration in FIG. 2 comprises a support frame 12 with longitudinal members 13, 14, between which a
  • Sensor device 20 is arranged with a, a first deflection device 21 to be formed friction rod 22.
  • the friction bar 22 is shown in the
  • the device 10 moreover has two deflection cylinders 23, 24, which form a second deflection device 25.
  • the two deflection cylinders 23, 24 are each mounted in the region of the two longitudinal members 13, 14 in a cross-beam 26, 27, each in operative connection with a spindle rod 28, 29
  • Double arrow 33 parallel to the longitudinal members 13, 14 and in relation to the first
  • FIG. 4 Due to the position of the two deflection cylinders 23, 24 for the friction rod 22, a wrap angle ⁇ of the packaging material web 5 in the region of the friction rod 21, as shown in FIG. 4, can be changed.
  • the packaging material web 5 is guided in the area in front of and behind the first deflection device 21 in each case around the deflection cylinder 23, 24 or in operative connection therewith arranged.
  • the surfaces of the deflection cylinders 23, 24 arranged in operative connection with the packaging material web 5 have suction or blowing openings, not shown in the figures, which can be connected either to an overpressure source 34 or to a vacuum source 35 (FIG. 2).
  • the packaging material web 5 is sucked or fixed on the surface in the region of the two deflection cylinders 23, 24, so that a relative movement between the packaging material web 5 and the
  • Packing machine 100 is taken on the other hand is the
  • Overpressure source 34 with the Umlenkzylindern 23, 24 arranged in operative connection and provides an air cushion between the Umlenkzylindern 23, 24 and the packaging material web 5 for low-friction or friction-free transport or for deflecting the packaging material. 5
  • the sensor device 20 has a plurality of aligned ones next to one another,
  • each other arranged sensor elements 38 which are fixed to a mounting frame 39 of the sensor device 20.
  • the sensor elements 38 which for example have a thickness of 10 mm, each consist of two sensors 41, 42 (FIG. 5), each in the form of double bending beams, with the aid of which two are perpendicular to one another
  • the force F-1 is used to detect a web tension of the packaging material web 5
  • the friction rod 22 is subdivided into a plurality of friction rod elements 43, which are arranged as far as possible without gaps in a direction extending between the longitudinal members 13, 14, wherein each friction rod member 43 is assigned to a sensor element 38 or connected thereto.
  • Friction rod elements 43 are preferably made of plastic with a friction-minimized surface.
  • the signals of the two sensors 41, 42 are supplied via terminals 44, 45 of the control device 8 of the packaging machine 100 as input values.
  • the two sensors 41, 42 of each sensor element 38 are connected to one another via a clamping element 46 acting as an overload protection and adjusting means in the form of a clamping screw.
  • the head 47 of the clamping element 46 bears against an underside of the one sensor 42 and passes through the sensor 42 in FIG.
  • the tensioning element 46 can be used, in particular, to match or fine-tune the individual sensors 42 so that one and the same force F-1 produces the same signal at the respective sensor 42.
  • the clamping element 46 acts as an overload protection for the sensor 42 when excessive forces occur in a direction opposite to the force Fi.
  • a bar-shaped pressure body 50 is optionally arranged between the two longitudinal beams 13, 14 (FIG. 5), which is arranged to be movable from a position spaced apart from the friction bar 22 or the friction rod elements 43 into a position corresponding to the representation of FIG. in which the pressure body 48 presses the packaging material web 5 with a defined force F 3 against the friction rod elements 43.
  • the device 10 according to the invention described so far comprises at least two different modes of operation, a first operating mode, which is adopted for detecting the elasticity or expansion properties of the packaging material web 5 during a batch change of the packaging material roll 1 or the processing of a new packaging material web 5 and / or for the determination of
  • the second Operating mode finds application during the processing of the packaging material web 5 in the packaging machine 10 and serves both the
  • FIG. 6, should illustrate the different operating modes of the device 10.
  • the vacuum source 35 In the first operating mode, during a standstill of the packaging machine 100 or the preferred roller pairs 2, 3 in a first step 51, the vacuum source 35 with the two
  • Deflection cylinder 23, 24 instead.
  • the two deflection cylinders 23, 24 of the second deflection device 25 are moved downward in order to form a wrap angle ⁇ in relation to the first deflection device 21.
  • an expansion force measurement (determination of the forces F-1) is carried out via the sensor device 20 or its sensor elements 38, from which the elasticity or expansion specific to a packaging material roll 1 can be deduced.
  • the result of the tensile force measurement results in a fifth step 55 for determining a permissible normal stress, i. to a
  • a measurement of the thickness distribution of the packaging material web 5 is to be made, then in an alternative third step 53a, a process of the two deflection cylinders 23, 24 into the position shown in FIG. 5 to a height just above or at the level of the friction rod 22 or the Reibstangenimplantation 43.
  • the Andschreibharm 50 is pressed against the packaging material web 5.
  • the pressing of the packaging material web 5 against the friction rod elements 43 leads to a force acting on the sensor elements 38 transversely to the packaging material web 5 with the force F 3 , wherein based on the actual position of the Andschreib stressess 50 and the sensor elements 41, 42 and the determined forces Fi on a thickness distribution of Packaging material web 5 can be closed transversely to the longitudinal extent.
  • the determined values or results can then be taken into account in the calculation of the allowable normal voltage (after performing steps 53 to 55).
  • the two are located
  • a second step 58 the transport of the packaging material web 5 or the processing of the packaging material web 5 is started.
  • a third step 59a, 59b both a web force measurement of the packaging material web 5 and a friction measurement (determination of the coefficient of friction ⁇ ) on the packaging material web 5 take place by means of the sensor device 20 of the sensor elements 38.
  • the results of the web tension measurement or the friction measurement lead in a fourth step 60a, 60b to the production of a web tension profile or a friction profile of the packaging material web 5.
  • FIG. 7 a web tension profile of the packaging material web 5 is shown as an example.
  • the tension S of the packaging material web 5 is shown over the web width B of the packaging material web 5.
  • the line 66 the permissible
  • Packaging machine 100 must not be exceeded to (under
  • the comparison of the current web tension profile with the maximum permissible web tension S z takes place according to the representation of FIG. 6 in a further step 61.
  • a step 62 a trend analysis of the friction profile caused by the friction measurement of the packaging material web 5 is made.
  • the results of the comparison from the further step 61 and the trend analysis from the step 62 results as a result in a step 63 an influence on the feed drive of the packaging material web 5 or the preferred roller pairs 2, 3, to ensure that the web tension S does not exceed the allowable value S z .
  • the device 10 described so far can be modified or modified in many ways, without departing from the spirit of the invention.
  • the specific design or arrangement of the sensor device 38 with the sensors 41, 42 may deviate from the described or illustrated embodiment.
  • the invention should not be limited to use in tubular bag machines, but in principle be applicable to a variety of packaging machines 100.

Abstract

L'invention concerne un dispositif (10), servant à déterminer des propriétés matérielles d'une feuille continue de matériau d'emballage (5), en particulier dans une machine d'emballage (100), qui comprend un système de détection (20) adapté pour déterminer des coefficients de friction (µ) ou une tension (S) de la feuille continue (5). Ce système de détection (20) est disposé dans la zone d'un premier dispositif de renvoi (21) de la feuille continue (5). Selon l'invention, il est prévu un dispositif (25) servant à amener la feuille continue de matériau d'emballage (5) au premier dispositif de renvoi (21) et à la transférer à partir de ce dernier. Dans un premier état de fonctionnement, le dispositif (25) est adapté pour immobiliser la feuille continue (5) et, dans un deuxième état de fonctionnement, pour la guider de préférence avec un frottement minime. Le système de détection (20) est adapté pour déterminer aussi bien les coefficients de friction (µ) que les tensions (S) de la feuille continue de matériau d'emballage (5).
PCT/EP2015/056637 2014-05-14 2015-03-26 Dispositif et procédé de détermination de propriétés matérielles d'une feuille continue de matériau d'emballage, de préférence dans une machine d'emballage, ainsi que machine d'emballage WO2015172932A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102014209134.9 2014-05-14
DE102014209134 2014-05-14
DE102014219012.6A DE102014219012A1 (de) 2014-05-14 2014-09-22 Vorrichtung und Verfahren zur Erfassung von Materialeigenschaften einer Packstoffbahn, vorzugsweise in einer Verpackungsmaschine sowie Verpackungsmaschine
DE102014219012.6 2014-09-22

Publications (1)

Publication Number Publication Date
WO2015172932A1 true WO2015172932A1 (fr) 2015-11-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/056637 WO2015172932A1 (fr) 2014-05-14 2015-03-26 Dispositif et procédé de détermination de propriétés matérielles d'une feuille continue de matériau d'emballage, de préférence dans une machine d'emballage, ainsi que machine d'emballage

Country Status (2)

Country Link
DE (1) DE102014219012A1 (fr)
WO (1) WO2015172932A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016153891A1 (fr) * 2015-03-25 2016-09-29 Georgia-Pacific Consumer Products Lp Mandrin résistant au glissement conçu pour retenir une bande de papier
CN110356887A (zh) * 2019-06-20 2019-10-22 徐州嘉搏纺织股份有限公司 一种针织品生产用退卷机

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DE102005017794A1 (de) * 2005-04-14 2006-10-19 Voith Patent Gmbh Walze
EP1790601A2 (fr) * 2005-11-29 2007-05-30 Bosch Rexroth Aktiengesellschaft Contrôle de la tension d'une bande de matériau
DE102007033394A1 (de) * 2007-07-18 2009-01-22 Voith Patent Gmbh Verfahren und System zur Online-Ermittlung wenigstens einer Dehnungseigenschaft einer laufenden Papier- oder Kartonbahn
WO2011019787A1 (fr) * 2009-08-12 2011-02-17 Dow Global Technologies Inc. Appareil pour déterminer le coefficient de frottement

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GB2396922B (en) 2002-12-20 2005-05-18 Royal Mail Group Plc Improvements in monitoring systems
FI20055019A (fi) 2005-01-17 2006-07-18 Metso Paper Inc Rainan kireysprofiilin mittausmenetelmä ja sitä soveltava tela

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Publication number Priority date Publication date Assignee Title
DE102005017794A1 (de) * 2005-04-14 2006-10-19 Voith Patent Gmbh Walze
EP1790601A2 (fr) * 2005-11-29 2007-05-30 Bosch Rexroth Aktiengesellschaft Contrôle de la tension d'une bande de matériau
DE102007033394A1 (de) * 2007-07-18 2009-01-22 Voith Patent Gmbh Verfahren und System zur Online-Ermittlung wenigstens einer Dehnungseigenschaft einer laufenden Papier- oder Kartonbahn
WO2011019787A1 (fr) * 2009-08-12 2011-02-17 Dow Global Technologies Inc. Appareil pour déterminer le coefficient de frottement
JP2013501939A (ja) * 2009-08-12 2013-01-17 ダウ グローバル テクノロジーズ エルエルシー 摩擦係数を決定する装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016153891A1 (fr) * 2015-03-25 2016-09-29 Georgia-Pacific Consumer Products Lp Mandrin résistant au glissement conçu pour retenir une bande de papier
US11214461B2 (en) 2015-03-25 2022-01-04 Gpcp Ip Holdings Llc Slip resistant core for holding a paper web
CN110356887A (zh) * 2019-06-20 2019-10-22 徐州嘉搏纺织股份有限公司 一种针织品生产用退卷机

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