EP0083912A1 - System und Verfahren um einen ersten elektrischen Motor an einem zweiten elektrischen Motor zu subordinieren und eine Wickelmaschine welche das System anwendet - Google Patents

System und Verfahren um einen ersten elektrischen Motor an einem zweiten elektrischen Motor zu subordinieren und eine Wickelmaschine welche das System anwendet Download PDF

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Publication number
EP0083912A1
EP0083912A1 EP82830307A EP82830307A EP0083912A1 EP 0083912 A1 EP0083912 A1 EP 0083912A1 EP 82830307 A EP82830307 A EP 82830307A EP 82830307 A EP82830307 A EP 82830307A EP 0083912 A1 EP0083912 A1 EP 0083912A1
Authority
EP
European Patent Office
Prior art keywords
motor
marks
paper tube
jaws
strip
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.)
Withdrawn
Application number
EP82830307A
Other languages
English (en)
French (fr)
Inventor
Carlo Ludovico Bruno
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.)
ALISYNCRO Srl
Original Assignee
ALISYNCRO Srl
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 ALISYNCRO Srl filed Critical ALISYNCRO Srl
Publication of EP0083912A1 publication Critical patent/EP0083912A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web advancing continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/08—Creating fin seals as the longitudinal seal on horizontal or vertical form fill seal [FFS] machines

Definitions

  • the present invention relates to systems for subordinating a first electric motor to a second electric motor.
  • subordinating system is used in the present specification, and in the claims which follow, to indicate a system whereby the speed of the first electric motor (the “subordinate” motor or “slave” motor) is varied in a predetermined manner dependent on the speed of a second electric motor (the “subordinating" motor or "master” motor).
  • the object of the present invention is to provide a subordinating system which is simple, reliable, and economic.
  • the invention also provides a method for subordinating a first electric motor to a second electric motor the main characteristic of which lies in the fact that there is provided a strip which bears at least one series of marks spaced longitudinally thereon in a predetermined manner and is driven to move in its longitudinal direction by the second electric motor, a reading device fixed relative to the strip which is arranged to detect the passage of the said marks, and in that there is supplied to the first motor a signal which is a function of the frequency of reading of the said marks, to vary with time and the speed of the first motor according to a predetermined law linked to the speed of the second motor.
  • the system and the method according to the present invention can be used advantageously in any field whenever it is necessary to achieve subordination of a first electric motor to a second electric motor.
  • the invention also provides for a particular application of the said system to a wrapping machine of the "fin-seal" type for confectionery products.
  • wrap-seal means wrapping machines for confectionery products, comprising:
  • a further object of the present invention is to provide a wrapping machine of the type specified above which avoids the use of the said mechanical transmission between the motor and the jaws and also the need for the related adjusting operations.
  • the invention provides a wrapping machine of the type specified above, characterised in that it further includes:
  • the said marks are constituted by impressed marks.
  • the said marks are disposed on the longitudinal fin of the paper tube.
  • the detector device is constituted by photoelectric cell means.
  • Figures 1 to 8 refer to an application of the system according to the present invention to a wrapping machine for confectionery products.
  • the wrapping machine which is generally indicated by reference numeral 1, uses a paper strip 2 which unrolls from a roll 3 and is intended to form wrappers for the articles fed to the wrapping machine.
  • the strip 2 unwinds from the roll 3, it is folded so as to bring its two longitudinal edges 4 (see Figure 5) into contact with each other so as to form a tube 5 (see Figure 4) having underneath it a longitudinal fin 6 constituted by the two longitudinal edges 4 in juxtaposition.
  • the wrapping machine 1 is provided with two longitudinal supports 7 having opposing L-sections, which support the paper tube 5 and define together a slot 8 (see Figure 4) through which projects the longitudinal lower fin 6 of the paper tube 5.
  • the wrapping machine is further provided with a series of pairs of wheels 9 which engage the two sides of the longitudinal fin 6 to join the two juxtaposed longitudinal edges 4 of the strip 2 and draw the paper tube 5 along in its longitudinal direction, making it slide on the support 7.
  • a conveyor device 10 which feeds a series of longitudinal-spaced articles 11 to be wrapped into the paper tube 5.
  • the articles 11 are thrust into the paper tube 5 by blades 12 of the conveyor 10 at a speed substantially equal to that of the longitudinal translational movement of the paper tube 5.
  • the articles are deposited on the lower inner surface of the paper tube and are entrained longitudinally thereby.
  • the wrapping machine is provided at its output end with a pair of transverse cutting and joining jaws 13 between which the paper tube is made to pass.
  • the jaws 13 cooperate with each other so as to join the walls of the paper tube together in a zone between one article and the next and to separate each article from the next.
  • the jaws 11 are constituted by. a .rotary member including one or more arms (in Figure 3 the jaws are illustrated with a single arm) each of which has an external working end.
  • the circular trajectories of the working ends of the two jaws 13 are substantially tangential to the paper tube 5 on opposite sides of its axis.
  • the joining effected by the jaws 13, as well as that effected by the wheels 9, may be heat sealing, for example.
  • the joining may also be achieved when cold by using wheels 9 having a scored surface so as to impress milling on the said longitudinal edges.
  • FIG. 1 The joining operation effected by the two jaws 13 gives rise to the formation of a transverse fin at at each end of the wrapper of each article 11-The wrapped article obtained is illustrated in Figure 1.
  • the reference numeral 14 generally indicates the wrapper of the article (which is in the form of a tablet) and reference numeral 15 indicates each of the two transverse fins obtained as a result of the joining effected by the jaws 13.
  • reference numeral 16 indicates the longitudinal lower fin of the wrapper 14 corresponding to that portion of the longitudinal fin 6 of the paper tube 5 which is separated as a result of the cutting operation described above.
  • Figure 2 illustrates the wrapped article with the fin 16 folded so as to be disposed parallel and adjacent the lower surface of the wrapping 14, a condition in which the product is then sold..
  • the wrapped products which are obtained after the cutting and joining operation performed by, the jaws 13 are conveyed by the conveyor device 17 to the output of the machine.
  • the jaws 13 are controlled by an electric motor (which is the same as that which drives the conveyor device 10 and the wheels 9 for drawing the paper tube 5) with the interpositioning of an adjustable mechanical transmission arranged to impart non-uniform motion to the jaws 13 during each revolution.
  • the need to vary the velocity of the jaws 13 during each revolution results from two circumstances: on the one hand, the length of the circular trajectory of the working end of each jaw 13 does not, in general, coincide with the distance along which the transverse fins 15 of the wrapped article must be formed (they could coincide for a particular article but this coincidence will no longer occur upon passing to an article of a different length); on the other hand, the working ends of the jaws 13 must have a velocity substantially equal to the translational speed of the paper tube, when this is in the working zone, in order to perform the cutting and joining operation.
  • the mechanical transmission used in known machines to impart this non-uniform motion to the jaws 13 is relatively complex in that it must allow the motion of the jaws to be adjusted to the different lengths of articles, and hence requires intervention by the operator every time a type of product fed to the wrapping machine is changed.
  • the jaws 13 are driven by a first electric motor 18 ( Figure 3), the wheels 9 for drawing the paper tube 5 are driven by a second electric motor 20, and the motor 18 is made subordinate to the motor 20 in the manner described in detail below.
  • the paper strip 2 is provided with a series of marks 19 of a different material from that constituting the strip or of a different colour from the strip, the marks being spaced longitudinally on at least one of the two longitudinal edges 4 of the strip.
  • the marks 19 give rise to an equal number of marks 21 on the longitudinal fin 6 of the paper tube 5.
  • the wrapping machine is provided with a sensor device arranged to detect the passage of the marks 21.
  • this sensor device is constituted by a photoelectric cell 22 (see Figures 3 and 5) which receives a light signal from a device 23.
  • the sensor 22 is connected to an electronic control box 28 including a frequency/analogue converter arranged to supply to the motor 18 a control signal which is a function of the frequency of reading of the marks 21, so as to allow the speed of the motor 18 to be varied according to a predetermined law according to the disposition of the marks on the longitudinal fin 6.
  • a frequency/analogue converter arranged to supply to the motor 18 a control signal which is a function of the frequency of reading of the marks 21, so as to allow the speed of the motor 18 to be varied according to a predetermined law according to the disposition of the marks on the longitudinal fin 6.
  • the marks 21 on the longitudinal fin 6 are spaced from each other in a predetermined non-uniform manner. Moreover, the disposition of these marks is repeated identically on each section of the strip corresponding to a rotation of the jaws 13, whereby the speed of the motor is varied according to a predetermined law during each revolution of the jaws.
  • FIG. 8 In the lower part of Figure 8 is illustrated an example of the said non-uniform distribution of the marks 21 on a section of the longitudinal fin 6, corresponding to the rotation of the jaws through one revolution.
  • One jaw 13 is illustrated schematically in the left-hand part of Figure 8.
  • the arrow F indicates the sense of rotation of the jaw and V indicates the peripheral velocity of the working end of the jaw, which follows a circular trajectory indicated by the broken line L.
  • the marks 21 By arranging the marks 21 in the manner illustrated in Figure 1, one obtains a variation of the peripheral velocity V of the working end of the jaw 13 with time, during each revolution of the jaw, of the type represented qualitatively by the curve A in the diagram of Figure 8.
  • the time t indicates the instant at which the jaw 13 is in its working condition, that is, in the position in which the joining and cutting operation is performed; the time to indicates the instant at which the jaw 13 is in the diametrally opposed position to the working position, and the time t 2 indicates the instant at which the jaw-turns into this position.
  • the interval t 2 -t 0 thus corresponds to the time necessary for the jaw to carry out one revolution.
  • V indicates the value corresponding to the translational speed of the paper tube 5.
  • a series of marks 24 which are uniformly spaced from each other may be provided on the fin 6.
  • a second sensor device for reading marks 2 4 This reader is used to generate a signal indicative of the speed of the paper tube 5, that is, of the speed of the motor 20. This allows not only the velocity of the jaw to be varied during each revolution in the manner described above, but also the motor 18 which drives the jaw to be made to follow any fluctuations in the speed of the motor 20 which drives the drawing of the paper tube.
  • each jaw is driven to carry out a predetermined non-uniform motion and, at the same time, any fluctuation in the speed of the paper tube 5 gives rise to a corresponding variation in the speed of the jaws.
  • the law of -motion imparted to the jaws depends on the disposition of the marks 21 on the longitudinal fin 6 of the paper tube. Since for each particular length of articles to be wrapped a corresponding law of motion of the jaws must be realised, it follows that for each different length of article a strip with a different disposition of marks must be provided. This does not result in any complication in that it is always necessary to provide a particular strip for each particular type of article to be wrapped, the writing and any designs on this strip obviously being different for each type of article to be wrapped.
  • the wrapping machine according to the present invention is simpler and more functional than machines of known type, and allows the elimination of the complicated mechanical transmission between the jaws and the corresponding drive motor as well as the need to act on the mechanical transmission every time the length of article is varied in order to adjust the movement of the jaws to the new length.
  • the system according to the present invention has been described with reference to a fin-seal wrapping machine, the system is of general application, being usable any time it is desired to subordinate a first electric motor to a second electric motor, for example, when it is wished to vary the speed of the first electric motor in a manner identical to that which occurs with the second electric motor, or when the speed of the first motor varies according to a predetermined law with respect to the speed of the second motor.
  • M1 indicates the "subordinate motor” or “slave motor” and M2 indicates the “subordinating motor” or “master motor”.
  • the motor M2 drives the longitudinal movement of a strip 25 bearing a series of marks (not illustrated) spaced longitudinally from each other and constituted, for example, by marks similar to the marks 21 which have been described above.
  • the passage of the marks on the strip is detected by a reading device 26 connected to control means 27.
  • These control means are arranged to receive the output signals from the reading device 26 and supply the electric motor Ml with a signal which is a function of the frequency of reading of the said marks, to vary the velocity of the motor Ml with time according to a predetermined law which depends on the disposition of the marks on the strip 25 and which is linked to speed of the motor M2.
  • the more general inventive concept which is behind present invention is that of providing subordination between the two electric motors by feeding to the "slave motor” information formed by the reading of "marks" carried by a sliding strip driven by the "master motor”.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
EP82830307A 1982-01-05 1982-12-27 System und Verfahren um einen ersten elektrischen Motor an einem zweiten elektrischen Motor zu subordinieren und eine Wickelmaschine welche das System anwendet Withdrawn EP0083912A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6700482 1982-01-05
IT67004/82A IT1154404B (it) 1982-01-05 1982-01-05 Sistema e metodo per asservire un primo motore elettrico ad un secondo motore elettrico e macchina incartatrice utilizzante tale sistema

Publications (1)

Publication Number Publication Date
EP0083912A1 true EP0083912A1 (de) 1983-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830307A Withdrawn EP0083912A1 (de) 1982-01-05 1982-12-27 System und Verfahren um einen ersten elektrischen Motor an einem zweiten elektrischen Motor zu subordinieren und eine Wickelmaschine welche das System anwendet

Country Status (4)

Country Link
EP (1) EP0083912A1 (de)
JP (1) JPS58160224A (de)
DE (1) DE83912T1 (de)
IT (1) IT1154404B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190498A2 (de) * 1985-01-14 1986-08-13 Doboy Packaging Machinery, Inc. Maschine zum Einwickeln
DE3615442A1 (de) * 1985-05-08 1986-11-13 Fuji Machinery Co., Ltd., Nagoya, Aichi Verfahren und vorrichtung zum steuern eines antriebssystemes in einer verpackungsmaschine
EP0255474A2 (de) * 1986-07-31 1988-02-03 ILAPAK Research & Development S.A. Vorrichtung zur Bildung von Schlauchbeutelpackungen
GB2194209A (en) * 1986-07-07 1988-03-02 Nippon Sheet Glass Co Ltd Transport speed control system for glass annealing installation
GB2204717A (en) * 1987-05-13 1988-11-16 Ocme Spa Packaging machine control
EP0537844A1 (de) * 1991-10-14 1993-04-21 SITMA S.p.A. Vorrichtung zum Strecken einer Kunststoff-Folienbahn in einer Verpackungsmaschine
EP0588530A1 (de) * 1992-09-04 1994-03-23 Cloud Corporation Geschwindigkeitssteuerung einer Speicher- und Verpackungsvorrichtung
FR2707081A1 (fr) * 1993-07-01 1995-01-06 Cavanna Spa Procédé pour commander le fonctionnement d'une unité de fermeture à mâchoires rotatives pour machine d'emballage.
DE19651954A1 (de) * 1996-12-13 1998-06-18 Bayer Bitterfeld Gmbh Vorrichtung zum Schneiden einer Streifenverpackung
EP0945344A2 (de) * 1998-03-27 1999-09-29 TECNOMECCANICA S.r.l. Vorrichtung zum Herstellen von Produkthüllen aus heisssiegelbarem Papier
EP0930233A3 (de) * 1998-01-20 2001-01-31 Ishida Co., Ltd. Verfahren und Vorrichtung zum Einstellen der Schneideposition von Beuteln und mit diesen ausgestattete Verpackungsmaschine
US6408599B1 (en) 1998-01-20 2002-06-25 Ishida Co., Ltd. Method of and device for adjusting position for cutting bags and packaging machine incorporating same
FR2953200A1 (fr) * 2009-11-27 2011-06-03 Mv 2 Dispositif de fabrication d'empaquetages de conditionnement par ultrason

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61142105A (ja) * 1984-12-04 1986-06-30 大成ラミック株式会社 ヒ−トシ−ル機の横シ−ルピツチ変更装置
US4727707A (en) * 1986-12-15 1988-03-01 Kliklok Corporation Packaging film feeding apparatus and method
JPH0629049B2 (ja) * 1988-12-28 1994-04-20 株式会社フジキカイ 横型製袋充填包装機のシール体駆動制御装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599430A (en) * 1950-03-29 1952-06-03 Du Pont Register control system for web cutting mechanisms
US3943683A (en) * 1975-03-19 1976-03-16 Hayssen Manufacturing Company Packaging apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2599430A (en) * 1950-03-29 1952-06-03 Du Pont Register control system for web cutting mechanisms
US3943683A (en) * 1975-03-19 1976-03-16 Hayssen Manufacturing Company Packaging apparatus

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190498A2 (de) * 1985-01-14 1986-08-13 Doboy Packaging Machinery, Inc. Maschine zum Einwickeln
EP0190498A3 (en) * 1985-01-14 1988-01-20 Doboy Packaging Machinery Inc. Wrapping machine and method
DE3615442A1 (de) * 1985-05-08 1986-11-13 Fuji Machinery Co., Ltd., Nagoya, Aichi Verfahren und vorrichtung zum steuern eines antriebssystemes in einer verpackungsmaschine
GB2194209A (en) * 1986-07-07 1988-03-02 Nippon Sheet Glass Co Ltd Transport speed control system for glass annealing installation
GB2194209B (en) * 1986-07-07 1990-06-06 Nippon Sheet Glass Co Ltd Transport speed control system for glass annealing installation
EP0255474A2 (de) * 1986-07-31 1988-02-03 ILAPAK Research & Development S.A. Vorrichtung zur Bildung von Schlauchbeutelpackungen
EP0255474A3 (en) * 1986-07-31 1989-02-01 Ilapak Research & Development S.A. Method and device for making bag packages from a tubular web
GB2204717A (en) * 1987-05-13 1988-11-16 Ocme Spa Packaging machine control
EP0537844A1 (de) * 1991-10-14 1993-04-21 SITMA S.p.A. Vorrichtung zum Strecken einer Kunststoff-Folienbahn in einer Verpackungsmaschine
US5285621A (en) * 1991-10-14 1994-02-15 Sitma S.P.A. Apparatus for stretching a continuous plastics film in a packaging machine
EP0588530A1 (de) * 1992-09-04 1994-03-23 Cloud Corporation Geschwindigkeitssteuerung einer Speicher- und Verpackungsvorrichtung
US5617706A (en) * 1992-09-04 1997-04-08 Cloud Corporation Accumulator and collator for packaging apparatus
FR2707081A1 (fr) * 1993-07-01 1995-01-06 Cavanna Spa Procédé pour commander le fonctionnement d'une unité de fermeture à mâchoires rotatives pour machine d'emballage.
DE19651954A1 (de) * 1996-12-13 1998-06-18 Bayer Bitterfeld Gmbh Vorrichtung zum Schneiden einer Streifenverpackung
US5957821A (en) * 1996-12-13 1999-09-28 Bayer Bitterfeld Gmbh Apparatus for cutting a strip-type packaging
EP0930233A3 (de) * 1998-01-20 2001-01-31 Ishida Co., Ltd. Verfahren und Vorrichtung zum Einstellen der Schneideposition von Beuteln und mit diesen ausgestattete Verpackungsmaschine
US6408599B1 (en) 1998-01-20 2002-06-25 Ishida Co., Ltd. Method of and device for adjusting position for cutting bags and packaging machine incorporating same
EP0945344A2 (de) * 1998-03-27 1999-09-29 TECNOMECCANICA S.r.l. Vorrichtung zum Herstellen von Produkthüllen aus heisssiegelbarem Papier
EP0945344A3 (de) * 1998-03-27 2000-03-22 TECNOMECCANICA S.r.l. Vorrichtung zum Herstellen von Produkthüllen aus heisssiegelbarem Papier
US6122894A (en) * 1998-03-27 2000-09-26 Tecnomeccanica S.R.L. Apparatus for making product wrappers from heat-sealable paper
FR2953200A1 (fr) * 2009-11-27 2011-06-03 Mv 2 Dispositif de fabrication d'empaquetages de conditionnement par ultrason

Also Published As

Publication number Publication date
DE83912T1 (de) 1984-01-05
JPS58160224A (ja) 1983-09-22
IT8267004A0 (it) 1982-01-05
IT1154404B (it) 1987-01-21

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Inventor name: BRUNO, CARLO LUDOVICO