WO2007124954A1 - Dispositif d'alimentation destiné à une scelleuse de barquettes - Google Patents

Dispositif d'alimentation destiné à une scelleuse de barquettes Download PDF

Info

Publication number
WO2007124954A1
WO2007124954A1 PCT/EP2007/003905 EP2007003905W WO2007124954A1 WO 2007124954 A1 WO2007124954 A1 WO 2007124954A1 EP 2007003905 W EP2007003905 W EP 2007003905W WO 2007124954 A1 WO2007124954 A1 WO 2007124954A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging
belt
speed
troughs
format
Prior art date
Application number
PCT/EP2007/003905
Other languages
German (de)
English (en)
Inventor
Josef Mayer
Original Assignee
CFS Bühl 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
Priority claimed from DE102006030433A external-priority patent/DE102006030433A1/de
Application filed by CFS Bühl GmbH filed Critical CFS Bühl GmbH
Publication of WO2007124954A1 publication Critical patent/WO2007124954A1/fr

Links

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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • B65B7/164—Securing by heat-sealing
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/52—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using roller-ways or endless conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
    • B65G47/30—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a series of conveyors
    • B65G47/31—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a series of conveyors by varying the relative speeds of the conveyors forming the series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0235—Containers
    • B65G2201/0261—Puck as article support

Definitions

  • the present invention relates to a device for sealing a lidding film on a packaging tray with a sealing device, which is arranged after a packaging tray feeding device, which is a collecting belt, which is driven by a motor and which is arranged with respect to the transport direction of the packaging trays in front of the sealing device, a feed belt which transports the packaging troughs to the collecting belt and is driven by a motor and has a sensor which is arranged in the region of the feed belt.
  • the present invention relates to a method for sealing a lid film to a packaging tray with a sealing device in which a format consisting of several packaging trays is sealed simultaneously with a lid film, the packaging trays of a format before sealing on an anthology arranged at the correct distance from each other be passed, the packaging trays of a feed belt to the collecting belt and a sensor is arranged in the region of the feed belt, wherein the sensor or an associated control device counts the detected packaging trays and in the presence of a complete format, the transport speed of the feed belt is increased.
  • the generic device or the generic method are known from the prior art.
  • a plurality of packaging troughs a so-called format, are simultaneously transported from a collection belt into the sealing device and from the sealing device to a removal belt.
  • the packaging troughs must be arranged on the collecting belt in the distance to each other, in which they are later provided with a cover film.
  • EP 0 680 880 describes, for. B. a feeder, in which it is possible to perform the equidistant arrangement of the container on a collection tape.
  • the system described there is comparatively expensive.
  • packaging trays are also to be processed which have the same length and the same width but a different height, which is referred to as a so-called "chaotic infeed.”
  • the handling of "chaotic infeed" in machines according to the prior art Technology not or only with a variety of sensors; ie at least two possible.
  • the object is achieved with a method for sealing a lid film to a packaging tray with a sealing device, in which a format consisting of several packaging trays is closed simultaneously with a lid film, the packaging trays of a format are placed on a collection tape at the correct distance from each other before sealing , the packaging troughs are transferred from a feed belt to the collecting belt, a sensor is arranged in the region of the feed belt and the packaging troughs have a different height at the same length and width, the sensor and / or an associated control device mistaking the length of the packaging troughs and therefrom their height and / or the position of the front edge of the packaging tray is calculated.
  • the method comprises a seal with which the cover film is sealed under the influence of pressure and temperature on a plurality of packaging troughs, which together form a so-called format.
  • the packaging trays are removed from a collecting belt with a gripper and placed in a sealing frame.
  • the packaging provided with lid film packaging trays are then removed from the seal frame and placed on another conveyor belt.
  • the Packaging troughs of a format are already arranged on the collecting belt in the distance to each other, which corresponds to the distance of the sealing frame within the sealing device to each other.
  • the distance between the packaging wells is usually the same, but may also be different in each case.
  • a so-called feed belt In front of the collecting belt, a so-called feed belt is arranged, which transports the packaging troughs, which can have any desired spacing to one another, to the collecting belt.
  • Both the collection belt and the feed belt each have a motor, which preferably transmits speed signals to a control unit, so that the control unit knows the transport speed of the respective conveyor belt.
  • the device according to the invention has a sensor, which is preferably arranged, in relation to the transport direction of the packaging troughs, in the entry region of the delivery belt.
  • This sensor and / or a control device connected thereto preferably mops the position of the packaging trough on the feed belt in the transport direction, the length of the packaging troughs and calculates their height and / or the position of the leading edge of the packaging trough. This information is needed for positioning and / or selection of the respective packaging tray on the collection tape.
  • the position of the leading edge is used for positioning the packaging troughs on the collecting belt. Its position is preferably calculated according to the following formula ::
  • Leading edge measured position + shell length / 2- measured length / 2
  • the shell length is the length of the shell from the front to the rear edge.
  • the sensor or an associated control device counts the detected packaging troughs and increases in the presence of a complete format, the transport speed of the feed belt. For example, if one format comprises five packaging troughs to which a lidding film is simultaneously sealed, the speed of the feed belt motor will increase as soon as the sensor detects five packaging troughs. This increased speed is maintained until the sensor is the next packaging tray, ie the first of the next format, determined. Then the speed is reduced again to the first constant speed.
  • the change in the speed of the feed belt after the completion of a format has the advantage that the distance between two formats is increased, which on the one hand more time is available to arrange the packaging trays of a format at the correct distance from each other on the collecting belt and / or order to transport the packaging troughs by means of a gripper from the collecting belt to the sealing frame.
  • the motor drives the feed belt alternately at a first or a second constant speed, wherein the second speed is preferably higher than the first speed.
  • the packaging trays with a gripper from the collecting belt in the sealing device is transportable.
  • the speed of the collecting belt is controlled after the contact of the gripper with the respective packaging trays so that it corresponds as long as possible to the speed of the gripper in the transport direction of the packaging trays.
  • the collecting belt and the gripper have at least approximately the same speed as long as there is still a packaging tray of a format on the collecting belt.
  • the motors are servomotors.
  • each feed belt has a separate sensor.
  • the sensor (s) are / are arranged in the inlet region of the feed belt, very particularly slightly downstream of the deflection roller, so that the respective packaging tray is recognized as early as possible. Upon detection, the packaging tray should rest so far on the feed belt that it follows its transport speed, so that there is no relative movement between the feed belt and the packaging tray.
  • conveyor belts are used with high coefficients of friction, such as silicone-coated conveyor belts.
  • FIG. 1 shows an embodiment of the device according to the invention.
  • FIG. 2 shows the device according to the invention with an additional external feed belt.
  • FIG. 3 shows a further embodiment of the device according to FIG. 2.
  • FIG. 4 shows a packaging tray on the feed belt.
  • the packaging tray feeding device 2 of the device according to the invention is shown.
  • the packaging tray feeding device With the packaging tray feeding device, the packaging troughs are placed on the collecting belt in the correct distance from each other and transported from there by means of grippers (not shown) to the sealing device (not shown), in which the packaging trays are closed with a lid film.
  • the packaging tray feeding device has a feed belt 4 and an accumulation belt 3.
  • the feed belt 4 is driven by means of the motor 13, which has an encoder with which a signal is sent via the respective speed of the feed belt to a control unit.
  • the collecting belt 3 is driven by the motor 8, which also has an encoder 5, which transmits signals via the respective speed of the collecting belt to a control unit.
  • the motors 8, 13 are servomotors in the present case.
  • the packaging troughs 1, 1 ' are transported at a random distance 12 from one another in the direction symbolized by the large arrow at a constant belt speed.
  • a sensor 10 detects the random distance 12 between each two packaging troughs and transmits the value to a control unit. Furthermore, the sensor detects once the position of the respective packaging tray on the conveyor belt. Furthermore, the sensor detects the length of the package. These two data are used to determine the exact position of the front edge of the respective packaging tray. Based on this information and the speed data of the belts 3, 4, a control unit can determine the exact location of the leading edge of each packaging tray at any one time on one of the belts 3, 4. At the same time, the sensor or a control unit connected to it counts the keys for packaging.
  • the control unit increases the speed of the feeding belt to a higher constant value. This speed is maintained until the sensor 10 recognizes the next packaging tray that can follow at any distance after the last packaging tray of the previous format. Thereafter, the speed is reduced back to the original low constant value.
  • the sensor 10 in the input region 6 is preferably arranged downstream of the roller 7 and the packaging trough opens as early as possible only when it has the speed of the feed belt.
  • the respective packaging tray is transferred to the collecting belt 3.
  • the control of the belt takes place so that the packaging trays after the transfer of the respective packaging troughs of the feed belt 4 on the collecting belt 3 has the desired distance.
  • the collecting belt 3 is before the transfer and is then accelerated and braked again so that after the transfer of the desired distance 11 is present, it is important that as long as the bottom of the packaging tray is in the transition region, that touched both belts simultaneously , These have the same transport speed.
  • the distance 12 is smaller than the desired distance 11, it may be useful that the collecting belt 3 is not reduced to zero after the transfer of the packaging tray, but is accelerated again from a certain initial speed. The easiest way is the speed control of the collecting belt 3 along a triangular curve.
  • the gripper performs a movement in the transport direction of the packaging trays. In order to avoid a relative speed between the packaging troughs and the collecting belt 3, this is accelerated synchronously with the gripper.
  • the speed of the collecting belt is always equal to the speed of the gripper, since the gripper lifts the packaging trays at least not completely from the collecting belt. Due to the synchronous movement of the gripper and the belt, belts with a comparatively high coefficient of friction can be selected, which advantageously has the effect of positioning the packaging recesses at the correct distance from one another. However, should a packaging tray approach the transition area between the two belts before the last packaging tray has been transported by the gripper from the accumulation belt, the accumulation belt must be braked.
  • FIG. 2 essentially shows the feed device according to FIG. 1, wherein a further external feed belt is arranged upstream of the feed belt 4.
  • the bands 4 and 3 are assigned directly to the device according to the invention, while the band 14 is a band which is delivered on the part of the operation in which the device according to the invention is located.
  • the external feed belt transports the packaging troughs 1, 1 'at a constant speed, the packaging troughs being at a random distance from one another.
  • the speed of the belt 14 preferably corresponds to the lower constant speed of the belt 4. It is advantageous if the belt 14 is also connected to the same control unit as the other belts, so that it shuts off together with the other belts in the event of a fault can be.
  • FIG. 3 essentially corresponds to the embodiment according to FIG. 2, wherein in the present case the transporting means 14 is a chain on which drivers 15 are arranged, which ensure that the packaging troughs are constantly or clocked at an equal distance from one another the feeding belt 4 are transferred. Otherwise, reference is made to the comments on Figure 2.
  • Figure 4 shows a packaging tray 1 on the collecting belt 3.
  • the sensor 10 detects the position P of the packaging tray 1, which generally corresponds to its position. Then he determines the length b. Thereafter, the sensor or a control unit connected thereto determines the position of the leading edge P 'according to the following formula:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Package Closures (AREA)
  • Basic Packing Technique (AREA)

Abstract

L'invention concerne un procédé de scellage d'une pellicule de couverture sur une barquette d'emballage au moyen d'un dispositif de scellage, selon lequel un format composé de plusieurs barquettes d'emballage (1) est scellé simultanément avec une pellicule de couverture. Avant scellage, les barquettes d'emballage d'un format sont disposées avec l'écart adéquat les unes par rapport aux autres sur une bande collectrice, puis transférées d'une bande d'alimentation (4) vers la bande collectrice. Un capteur (10) est disposé à proximité de la bande d'alimentation. Les barquettes d'emballage ont toutes la même longueur et la même largeur mais une hauteur différente.
PCT/EP2007/003905 2006-05-03 2007-05-03 Dispositif d'alimentation destiné à une scelleuse de barquettes WO2007124954A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102006020750 2006-05-03
DE102006020750.5 2006-05-03
DE102006030433.0 2006-06-29
DE102006030433A DE102006030433A1 (de) 2006-05-03 2006-06-29 Zuführvorrichtung für einen Traysealer

Publications (1)

Publication Number Publication Date
WO2007124954A1 true WO2007124954A1 (fr) 2007-11-08

Family

ID=38308638

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/003905 WO2007124954A1 (fr) 2006-05-03 2007-05-03 Dispositif d'alimentation destiné à une scelleuse de barquettes

Country Status (1)

Country Link
WO (1) WO2007124954A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680880A1 (fr) * 1994-05-06 1995-11-08 G. MONDINI S.p.A. Dispositif pour sceller des récipients par l'application d'une feuille de couverture
WO2003104115A1 (fr) * 2002-06-10 2003-12-18 Bizerba Gmbh & Co. Kg Dispositif servant a transporter et a traiter des articles individuels
EP1468913A1 (fr) * 2003-04-17 2004-10-20 CFS Palazzolo S.p.A. Machine pour sceller des récipients par l'application d'une feuille de couverture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680880A1 (fr) * 1994-05-06 1995-11-08 G. MONDINI S.p.A. Dispositif pour sceller des récipients par l'application d'une feuille de couverture
WO2003104115A1 (fr) * 2002-06-10 2003-12-18 Bizerba Gmbh & Co. Kg Dispositif servant a transporter et a traiter des articles individuels
EP1468913A1 (fr) * 2003-04-17 2004-10-20 CFS Palazzolo S.p.A. Machine pour sceller des récipients par l'application d'une feuille de couverture

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