Method and device for filling packages with a padding material in bulk material form

Abstract

A method for filling packages or containers with a padding material, wherein the padding material is fed to the package or the container by way of a feed unit. Contour properties of one or more packing pieces in the package or in the container are determined by a scanning unit, are processed by a logic device and a filling quantity of that volume of the package or the container to be filled is determined therefrom and, derived therefrom, a variable quantity of padding material is introduced into the package or the container. In order for it to be possible to fill the packages or containers simply in an automated manner, an information item of an information carrier on the package or the container is read by a reading unit and an information item is determined therefrom with respect to the internal volume of the package or the container, wherein a highest point of the packing piece or the packing pieces is determined from the contour properties of the packing piece or the packing pieces and a first filling volume of padding material is determined therefrom, which filling volume is required for filling as far as the highest point of the packing piece or the packing pieces. This invention also relates to a device for carrying out the method according to this invention.

Claims

1. A device for filling packages (50) or containers with a cushioning material (80); the cushioning material (80) supplied to the package (50) or container by a supply unit; contour properties of one or more packaged items (60) in the package (50) or container are determined by a scanner unit (20), processed by a logic unit, and determine a filling quantity of the volume of the package (50) or container to be filled and derive a variable quantity of cushioning material (80) to be dispensed into the package (50) or container, the device comprising a reading unit (40) for determining information regarding the type of package or container and deriving information regarding an internal volume of the package (50) or container; the scanning unit (20) embodied as an optical laser scanner and using a triangulation process to determine a volume of the packaged item (60) or packaged items (60) and a highest point (61) of the packaged item (60) or packaged items (60) and using the highest point (61) and the information regarding the internal volume of the package (50) or container to determine a first filling volume (90) amount of the cushioning material (80) necessary for filling up to the highest point (61) of the packaged item (60) or packaged items (60); wherein a second filling volume (100) amount of the cushioning material (80) for a portion of the interior volume between the highest point (61) and a top of the internal volume is determined based on the information regarding the type of package or container and the internal volume, the second filling volume (100) amount is adjusted according to a predetermined customer-specific instruction as a function of the second filling volume (100) amount and/or a weight of the packaged item (60) or packaged items (60), and, based on the first filling volume (90) amount determined in the first step, the logic unit calculates a total volume of the cushioning material (80) as a sum of the first and the second filling volume (90, 100) amounts and the information regarding the calculated total volume of the cushioning material (80) is transmitted to a metering unit of the supply unit.

2. The device according to claim 1, wherein the information regarding the type of package or container and the internal volume of the package (50) or container can be embodied as a machine-readable code (53) in a form of a printed or a glued-on bar code or a 2-D pixel code or an RFID chip attached to the package (50) or container and a reading unit (40) embodied as a corresponding reading device, and the reading unit (40) communicating with the logic unit.

3. The device according to claim 1, wherein the second filling volume (100) is predetermined as a function of a filling material density and/or the property of the packaged item (60) or packaged items (60) and the predetermined values are stored in a memory unit of the logic unit.

4. The device according to claim 3, wherein the device has a vibrating unit controlled by the logic unit.

5. The device according to claim 4, wherein the device has a scoring device (30) for externally scoring the package (50) of cardboard on an outward face of the package cardboard controlled by the logic unit.

6. The device according to claim 5, wherein the device has electromechanical or electropneumatic units for folding flaps (51) produced by scoring the package (50) of cardboard and for placing a fitted cover (52) onto the package (50), wherein the units are controlled by the logic unit.

7. The device according to claim 1, wherein the second filling volume (100) is predetermined as a function of a filling material density and/or the property of the packaged item (60) or packaged items (60) and the predetermined values are stored in a memory unit of the logic unit.

8. The device according to claim 1, wherein the device has a vibrating unit controlled by the logic unit.

9. The device according to claim 1, wherein the device has a scoring device (30) for externally scoring the package (50) of cardboard controlled by the logic unit.

10. A method for filling packages or containers with a cushioning material (80) being supplied to a package or container by a supply unit, the method comprising: determining an internal volume of the package or container by reading an information carrier on the package or container with a reading unit (40), wherein the information carrier includes predetermined information comprising the internal volume of the package or container; automatically determining contour properties of a packaged item (60) or packaged items (60) within the internal volume, wherein the contour properties of the one or more packaged items (60) in the package or container are determined by a scanning unit (20) and processed by a logic unit; automatically determining a highest point (61) of the packaged item (60) or packaged items (60) from the contour properties of the packaged item (60) or packaged items (60); automatically determining in a first step a first filling volume (90) amount of the cushioning material (80) necessary for filling up to the highest point (61) of the packaged item (60) or packaged items (60) using the highest point (61), the contour properties, and the predetermined information regarding the internal volume of the package or container; automatically determining in a second step a second filling volume (100) amount of the cushioning material (80) for a portion of the interior volume between the highest point (61) and a top of the internal volume using the highest point (61) and the predetermined information regarding the internal volume of the package or container; automatically calculating a total volume of the cushioning material (80) from or as a sum of the first and the second filling volume (90, 100) amounts; dispensing the cushioning material (80) into the package or container in an amount corresponding to the total volume; and adjusting the second filling volume (100) amount prior to the calculating the total volume, according to a predetermined customer-specific instruction as a function of the second filling volume (100) amount and/or a weight of the packaged item (60) or packaged items (60).

11. The method according to claim 10, wherein the second filling volume (100) amount is determined as a function of a filling material density and/or the property of the packaged item (60) or packaged items (60).

12. The method according to claim 11, wherein in another step after being filled with the cushioning material (80), the package (50) or container is set into a vibrating motion for a certain amount of time.

13. The method according to claim 12, wherein the package (50) is of a scorable cardboard, the method further comprising externally scoring the package cardboard on an outward face of the package (50) and producing flaps (51) folded inward, and positioning a fitted lid (52) for closing the package (50).

14. The method according to claim 11, wherein the property of the packaged item (60) or packaged items (60) is package weight.

15. The method according to claim 10, wherein in another step after being filled with the cushioning material (80), the package (50) or container is set into a vibrating motion for a certain amount of time.

16. The method according to claim 10, wherein the package (50) is of a scorable cardboard scored from an outside and producing flaps (51) folded inward, and a fitted lid (52) positioned for closing the package (50).

17. The method according to claim 10, wherein a machine-readable code (53) in the form of a bar code or a 2-D pixel code or an RFID chip is the information carrier on the package (50) or container.

18. The method according to claim 10, wherein the cushioning material (80) is of foam peanuts of a recyclable foam material having a diameter in a first range from 10 mm to 20 mm and a length in a second range from 10 mm to 50 mm.

19. The method according to claim 10, further comprising automatically increasing a density of the cushioning material (80) as a function of the second filling volume (100) amount and/or a weight of the packaged item (60) or packaged items (60).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) This invention is explained in greater detail in view of an exemplary embodiment shown in the drawings, wherein:

(2) FIG. 1 schematically shows the steps of a method according to this invention, starting with the scanning of the data regarding a package volume of a package;

(3) FIG. 2 shows a package as shown in FIG. 1, after the filling procedure; and

(4) FIG. 3 shows the package when completely closed.

DETAILED DESCRIPTION OF THE INVENTION

(5) FIGS. 1-3 show details of a schematic depiction of a device, embodied in the form of a cavity-filling system 1, for filling packages 50 or containers with cushioning material 80, which is in particular embodied in the form of foam peanuts, such as composed of a recyclable foam material, which is embodied as essentially cylindrical and has a diameter in the range from 10 mm to 20 mm and a length of 10 mm to 50 mm. The figures depict the individual steps of the method.

(6) FIGS. 1-3 show the device, which can have a support frame that comprises frame profiles. The support frame has a transport device 10 built into it, which can include a multitude of transport rollers by which the packages 50 or containers can be guided. The support frame also has a filling unit built into it, which is composed of or comprises a metering unit and a supply unit (not shown) with which the cushioning material 80 can be dispensed into the package 50 or the container.

(7) The package 50 or container generally has one or more packaged items 60, which must be cushioned and secured for transport so that they do not slide in the package 50 or the container. Between the packaged items 60 or due to the geometry of the packaged items 60, there can also be cavities 70 that it is also necessary to fill.

(8) By means of or with a scanning unit 20, it is possible to determine the contour properties of one or more packaged items 60 in the package 50 or container, based on which a logic unit, such as in the form of an industrial PC, can calculate a volume of the packaged items 60 and based on this, a determination is made as to a filling quantity of the volume of the package 50 or the container. This information is used to control the metering unit of the supply unit so that a variable quantity of cushioning material 80 can be dispensed into the package 50 or the container.

(9) According to this invention, the device has a reading unit 40 that is able to detect information regarding the type and, derived from this, information regarding the internal volume of the package 50 or the container. The information regarding the type and internal volume provided on the package 50 or container can be embodied as a machine-readable code 53 in the form of a printed or glued-on bar code or a 2-D pixel code or an RFID chip attached to the package 50 or the container. The reading unit 40 is designed as a corresponding reading device, such as a bar code scanner or the like, the reading unit 40 transmits the determined data to the logic unit.

(10) The scanning unit 20 can be embodied in the form of an optical laser scanner or line scanner that can use a triangulation method to determine the volume of the packaged item 60 or packaged items 60 and a highest point 61 of the packaged item 60 or packaged items 60. Based on the information regarding the internal volume of the package 50 or the container and the information regarding the volume of the packaged item 60 or packaged items 60, it is possible to determine a first filling volume 90 of cushioning material 80 necessary for filling up to the highest point 61 of the packaged item 60 or packaged items 60.

(11) In a second step, as provided in the method according to the invention, a second filling volume 100, beyond the highest point 61, is determined and based on the filling volume 90 determined in the first step, a total volume is calculated as a sum of the two filling volumes 90, 100 of the cushioning material 80 and the total volume of the cushioning material 80 is dispensed into the package 50 or the container, as shown in FIG. 2. The second filling volume 100 can be predetermined taking into account a filling material density and/or the property of the packaged item 60 or packaged items 60. The predetermined values can be stored in a memory unit of the logic unit.

(12) In another step, after being filled with the cushioning material 80, the package 50 or the container is set into a vibrating motion for a particular time. A vibrating unit is used for this, which can be controlled by the logic unit.

(13) Optionally, as indicated in FIG. 2, it is possible for the package 50, which is composed of a scorable cardboard, to be scored from the outside, the flaps 51 thus produced can be folded inward and a fitted lid 52 for closing the package 50 can be set in place, such as shown in FIG. 3. Thus, the device has a scoring device 30, which can be controlled by the logic unit.

(14) In addition, the device can be equipped with electromechanical or electropneumatic units for folding flaps 51 produced by scoring the package 50 composed of or of cardboard as well as units for placing the fitted lid 52 onto the package 50, which units can likewise be controlled by the logic unit. A corresponding control logic in the form of a process control can be implemented in the logic unit, thus making it possible to implement a fully automated filling of packages 50 or containers as well as a closing of the packages 50.