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
  • B65B23/00—Packaging fragile or shock-sensitive articles other than bottles; Unpacking eggs
  • B65B23/10—Packaging biscuits
  • B65B23/16—Inserting the biscuits, or wrapped groups thereof, into already preformed containers

Definitions

• the invention relates to a method and a device for packaging flat products in trays.
• the invention is preferably used in the confectionery and long-life bakery industry for the automatic packaging of sensitive products which can have large dimensional and shape deviations.
• biscuits, biscuits, cookies or chocolate products are to be packed in trays with high performance.
• the trays preferably consist of more or less rigid plastic film, which is shaped, in particular deep-drawn, in accordance with the shape and number of products to be packaged.
• the products to be packaged are taken over by upstream ovens or by casting, stacking or coating systems, the products preferably being distributed over the required number of webs and, according to the invention, fed to the devices for insertion into the trays.
• the trays are preferably supplied in the form of tray stacks, from which individual trays are unstacked, into which the products are placed one after the other in such a way that they are arranged in the trays lying flat one above the other or generally standing vertically one behind the other or also in a scaled manner one behind the other.
• the trays filled in this way are then conveyed away and fed, for example, to a device for insertion into an outer packaging or for wrapping.
• intermediate buffers or stores can be provided, which, in the event of malfunctions in the subsequent machine parts Products can be stored or buffered gently, for example by stacking them on top of each other.
• the method according to the invention is characterized in particular in claim 1 and in the associated subclaims.
• the device according to the invention results in particular from claim 14 and the associated subclaims.
• FIG. 1 is a schematic side view of a device according to the invention, with which products arriving flat lying can be packed upright in trays standing side by side.
• FIG. 2 is a schematic top view of the device of FIG. 1.
• FIG. 3 is a schematic side view of a device according to the invention, with which products arriving flat lying can be packed in trays standing one behind the other, that is to say in a scaled manner.
• Fig. 4 is a schematic side view of a device according to the invention, with which flat-arriving products can be packed lying flat one above the other and in individual stacks side by side in trays.
• FIG. 5 is a schematic top view of the devices of FIGS. 3 and 4.
• FIG. 6 is a schematic plan view of a device according to the invention, with which objects arriving in several rows on a common path can be packaged in individual rows in trays.
• FIG. 7 is a schematic top view of a device substantially corresponding to FIG. 6, but here with an additional product buffer in the path of the incoming products.
• 8 is a schematic top view of a device according to the invention with two feed tracks, each with a product buffer.
• the invention is first described with its basic properties on the basis of the exemplary embodiment in FIGS. 1 and 2.
• the device according to the invention essentially has a machine frame 11 with an operating panel 13, which is provided on the front of an electrical control cabinet 15.
• Different essential device parts are arranged on a side frame 17 on the side of the machine frame 11.
• Suitable conveying elements are provided for conveying the stack of trays 21 in the direction of the destacker 23, for example a conveyor belt 25 with deflection rollers 27 and a slide 29 reaching behind the tray stack.
• the trays are individually destacked and sent to an im Transfer machine frame 11 arranged tray manipulator (tray manipulator) 31.
• the tray manipulator 31 has suitable drive devices for moving the trays 21 back and forth, for example a conveyor belt 35 guided over deflection rollers 33.
• the machine frame 11 with the components arranged therein forms a tray loading arrangement (tray loader).
• a first conveyor track or a feed conveyor 43 is provided on the side frame 17 for feeding individual products P lying flat one behind the other.
• This can be, for example, a conveyor belt (product feeding belt) 43 guided over deflection rollers 41.
• the individual products P arrive flat on the conveyor belt 43 lying one behind the other in the direction of arrow A. They are stacked at the left end of the conveyor belt 43 according to FIG. 1 into the trays 21 which are essentially perpendicular in the tray manipulator 31 in such a way that the products P in the tray 21 each lie vertically one above the other in a stack.
• the tray 21 is moved downwards by the height of a product P.
• the delivery of the products P from the conveyor belt 43 takes place, for. B. via an acute deflection 45 of the conveyor belt 43 with a small deflection roller 47 (rolling knife edge deflection).
• 43 belt tensioning devices 49 are provided on the conveyor belt.
• This can also be a conveyor belt guided over rollers.
• the products P initially lying vertically one above the other in the tray 21 are thus on the second conveyor track 51 pivoted by 90 degrees in or on the trays 21 (products standing on edge, turned by 90 degrees in tray).
• Fig. 2 shows the essential details of the device of Fig. 1 in a schematic plan view from above.
• FIGS. 1 and 2 the same or corresponding components are identified by the same reference numerals as in FIGS. 1 and 2. The differences between these devices and those according to FIGS. 1 and 2 are described below.
• the tray manipulator 31 is arranged to be pivotable about a horizontal axis, so that, according to FIG. 3, the individual products P arriving on the feed conveyor 43 are introduced into the correspondingly inclined trays 21 in a position of the tray manipulator 31 which is slightly inclined relative to the vertical.
• the products P then lie flat in the tray manipulator 31 in an almost vertical stack, but slightly offset laterally from one another in the individual tray 21.
• the tray 21 thus filled is conveyed downward from the inclined position and thereby pivoted so that the tray 21 lies horizontally on the discharge conveyor 51.
• the individual products P then stand in a shingled or upright manner in the form of scales in the tray 21 (products standing scaled on edge).
• the tray 21 can be formed on its bottom and / or on its side walls with corresponding oblique holding projections for the products P.
• the tray manipulator 31 can be pivoted about a horizontal axis in such a way that the individual trays 21 unstacked with the aid of the destacker 23 on the tray manipulator 31 are only opposite the horizontal are slightly inclined.
• the individual products P arriving on the feed conveyor 43 are then introduced into the tray 21 with the aid of the knife edge deflection 45, 47 such that they lie parallel to the bottom thereof.
• the tray 21 can be controlled by means of the tray manipulator 31 in this way and back and forth Moved forth that the individual products P lie one behind the other on the tray 21 in a single position.
• the tray 21 can also be moved back and forth by means of the tray manipulator 31 in such a way that a plurality of individual layers of products P are placed one after the other on the tray 21, so that individual product stacks lying one behind the other in the conveying direction result in the tray, which become higher with each layer of products P supplied.
• the tray manipulator 31 can, however, also be controlled and moved in such a way that first a single stack of products P is placed on the front or leading (right) end of the tray 21, followed by a second, a third and, if appropriate, further product stack on the tray 21 are formed, to which the products P are fed individually in such a way that one stack after the other is formed and the tray 21 is moved forward accordingly for each stack.
• the transfer path 53 can be designed so flexibly or flexibly that (in the example of FIG. 4) the trays 21, which are almost horizontal in the tray manipulator 31, go down over a somewhat steeper section of the transfer path 53 and then over further parts of the transfer path 53 more and more are transferred in the horizontal direction to the discharge conveyor 51, on which the trays 21 lie horizontally one behind the other.
• the individual products P then lie flat next to one another on the trays 21 and, if appropriate, in stacks one above the other (products side by side in flat position and stacked, if applicable).
• FIG. 5 shows a top view of a possible modified embodiment of the device according to the invention.
• Multi-row trays 21a are used here.
• a shifting module (shifting module for multi-row trays) 37 is provided on the tray manipulator 31, with which the trays 21a can be shifted transversely to their main conveying direction and transversely to the feed direction A of the individual products P in such a way that the individual products P successively into each Row of trays 21a can be inserted.
• the products P are fed in a single row in the direction of arrow A. 6, however, products P in several rows can be fed side by side.
• sorting devices 61 in particular sorting belts (aligning belts) with guide surfaces 63 arranged above them, the incoming products P are fed in according to FIG. 6 via a product feeding and distribution system (product feeding and distribution system) formed by the first conveyor track or the feed conveyor 65 several tracks of objects P running parallel and side by side.
• the product feed and distribution arrangement 65 is assigned a plurality of tray load arrangements (tray loaders) corresponding to the number of individual webs of products P, each of which is illustrated by its machine frame 11 with associated control cabinet 15.
• Each of these tray loaders has its own tray magazine 19, possibly with a displacement module 37 for transverse displacement of multi-row trays 21, and each with its own feed conveyor or conveyor belt 43 for transferring the products P in a single row, but possibly also in several parallel rows from the first conveyor track 65 and for feeding the products P to the corresponding tray manipulator 31.
• the filled trays 21 are fed on individual delivery conveyors 51, which are assigned to each tray loader, to a collecting conveyor or a collecting transport path (collecting transport for filled trays) 55, from where they go in the direction of arrow C are carried away for further packaging.
• the individual tray loaders identified by reference number 11 for the machine frame, are otherwise designed as described in connection with FIGS. 1 to 5.
• the device according to FIG. 7 largely corresponds to that of FIG. 6.
• the product feed and distribution arrangement 65 here has a plurality of separate tracks parallel to one another, which are separated from one another, for example, by partition walls 67. With the help of these dividing walls 67, product buffers (product buffers) are thus formed on the product feed and distribution arrangement 65 in the individual parallel paths, which buffers serve to receive or store the incoming products P in the event of faults in the subsequent device parts and are of a suitable length have in the direction of conveyance.
• the individual products can be stored in these product buffers lying flat one behind the other or also in a stacked arrangement. This ensures gentle treatment of the products. Otherwise, the design of the device according to FIG. 7 corresponds to that according to FIG. 6.
• FIG. 6 the design of the device according to FIG. 7 corresponds to that according to FIG. 6.
• FIG. 8 shows a device in which the products P arriving in the direction of arrow A are divided into two feed conveyors 65 via only two times two guide or guide surfaces 63 arranged one behind the other, which in turn can serve as product buffers due to their length in the conveying direction.
• a tray loading station (tray loader) 71 which is accommodated in a common machine frame 11 and, in this exemplary embodiment, has two tray magazines 19 running parallel to one another, each with an associated tray manipulator 31.
• the trays 21 loaded with products P are first conveyed away from each tray manipulator 31 on their own discharge conveyor 51.
• the two delivery conveyors 51 feed the trays 21 to a common collecting conveyor 55, on which the filled trays 21 are transported away in the direction of arrow C for further packaging.
• the invention thus creates a modular machine concept in which individual components can be used together or in a multiple arrangement. This concept is therefore specially tailored to the specific requirements of the confectionery and long-life bakery industry.
• Each individual feed path or conveyor path can be controlled separately by means of the control cabinet 15 via the control panel 13.
• Frequency-controlled drives can be used for the feed and conveyor tracks, for the buffer tracks and for the tray manipulators 31.
• the type and number of products P per tray 21 can be programmed in many ways using the control panel 13. When changing products, only a few machine elements are easy to set. All parts that come into contact with the products can be made of materials that are compatible with food, for example stainless steel or suitable plastics. Overall, this results in a solid, robust and reliable construction of the device.
• the modular system is very flexible and easily adaptable to different products.
• the products are handled particularly gently by being fed, counted and processed without pressure, i.e. without mutual feed pressure, and without using grippers or special separating devices. Even if the products are irregular, there is always an exact number of products for each tray.
• the integrated product buffer Due to the integrated product buffer, the overall system has the highest possible availability, whereby stand-by modules can alternatively also be provided.
• Due to the modular structure of the device it is tailor-made for every application. All elements of the device can be used for operation and maintenance make it optimally accessible. After all, the overall system has a very good price-performance ratio. With the maximum equipment, all conceivable pack formations and product presentations can be realized in one and the same device system.
• devices for discharging or removing deformed or damaged products can also be provided at suitable locations.
• Second conveyor track delivery conveyor, conveyor belt Transfer line, collecting conveyor, collecting conveyor, sorting device, sorting belt, guiding surface, first conveyor, product feed and distribution arrangement, partition, tray loading station, tray loader

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Basic Packing Technique (AREA)
• Containers And Plastic Fillers For Packaging (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)

Applications Claiming Priority (3)

Publications (2)

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Family Applications (1)

Country Status (6)

Families Citing this family (8)

Family Cites Families (10)

• 1999
  • 1999-07-01 DE DE19930368A patent/DE19930368A1/de not_active Withdrawn
• 2000
  • 2000-06-30 AT AT00951322T patent/ATE233199T1/de not_active IP Right Cessation
  • 2000-06-30 EP EP00951322A patent/EP1192082B1/fr not_active Expired - Lifetime
  • 2000-06-30 WO PCT/EP2000/006123 patent/WO2001002250A1/fr active IP Right Grant
  • 2000-06-30 DE DE50001341T patent/DE50001341D1/de not_active Expired - Fee Related
  • 2000-06-30 US US09/763,949 patent/US6397563B1/en not_active Expired - Lifetime
  • 2000-06-30 AU AU64305/00A patent/AU6430500A/en not_active Abandoned

Non-Patent Citations (1)

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