DE102012008716A1 - Device for strapping packages - Google Patents

Abstract

Shown and described is a device for strapping packages with a strapping frame, through which the strapping is guided, with a tightening and closing device, which clamps the strap around the package, with a packing table, on which the package rests during the strapping process, if necessary with a cover plate resting on the package during the strapping operation, with means for attaching an edge protector to the package which is mounted between the package and the strap and protects the package from damage by the strap and optionally with a strap Carrier on which the package is moved through the device It is an object of the invention to provide the device for attaching an edge protection, which is particularly suitable for retrofitting existing strapping devices. The object is achieved in that of a device having the features of claim 1, in particular with the marked features, according to which the means for attaching the edge protector is formed by a carriage which by means of a drive to the packing table and / or the covering or Press plate is movable and has a holding tool for the arrangement of the edge protection.

Description

The invention relates to a device for strapping packages with a strapping frame, through which the strap is guided, with a clamping and closing device, which clamps the strap around the package, with a packing table, on which the package rests during the strapping process, optionally with a blanking plate resting on the package during the strapping operation, comprising means for attaching an edge protector to the package which is mounted between the package and the strap and protects the package from damage by the strap and optionally with a package carrier on which the package is moved by the device.

Generic devices are well known from the prior art and, for example in the DE 10 2011 012 207 the applicant discloses. By such a device, for example, placed on pallets stacked cardboard boxes are moved, which are set for transport in the Umreifungsrahmens by the strap on a pallet. Other packaged goods, such as cans or canisters for liquids, which are put together to form so-called containers, as well as consumer goods of any kind, are generally also provided on pallets for transport and fastened by strapping on the pallet.

In the case of a number of goods, there is a risk that the strapping material may cause damage in the region of the edges of the goods by the tightening and closing, in particular if the packaged goods protrude beyond the pallet, ie the package carrier. In this case, a so-called edge protection is placed between the package and the strapping, which is formed in the simplest case of a piece of cardboard or plastic strips, wood strips, etc.

It is known from the prior art document which can not be assigned by document that a magazine is arranged laterally of the strap frame in which the edge guard is stored. By an appropriate removal device such edge protection is removed from the magazine before strapping and positioned in that region of the package edge, in which rests after strapping the strapping. Thereafter, the actual strapping process, wherein the strapping is clamped with the interposition of the edge protector around the package. The clamping forces exerted by the strap are absorbed by the edge protection, so that damage to the package is safely avoided. Such means for attaching an edge protection exist in a similar design not only for the packing table near the edges of the package but also for the covering or pressing plate near edges of the package.

As a rule, such a device for attaching an edge protector to the package is an integral part of the strapping machine, since a number of levers, arms and cylinders interact to remove the edge protector and to position it. These are to be attached to the frame parts of the strapping device and are activated by the central device control.

The object of the invention is to provide the means for attaching an edge protector, which is particularly suitable for retrofitting existing strapping devices.

This object is achieved by a device having the features of claim 1, in particular with the marked features, according to which the device for attaching the edge protector is formed by a carriage which can be moved by means of a drive on the packing table and / or the covering or pressing plate is and has a holding tool for the arrangement of the edge protection.

The main advantage of the carriage according to the invention for the arrangement of an edge protector on a package consists in particular in the compact dimensions and in the basic structural independence of the strapping device itself.

It is provided in a particularly preferred embodiment of the invention that the drive of the car is structurally independent of the device and integrated into the car. The car thus carries its own drive. About rollers or wheels, it is movable on the device, so that can be dispensed with known from the prior art lifting cylinder and linkage.

It is only necessary that the packing table and / or the covering or pressing plate has a guide for the carriage, along which the carriage moves to the packing table, so that the carriage can be moved in the correct orientation to the package along the packing table or the cover plate ,

Preferred is an embodiment, according to which the car has a non-electric motor-driven drive and is controlled by radio signals. In this embodiment of the invention, depending on the design of the packing table possibly even a holding device for the car be provided to store it in a parking position outside the path of movement of the package can. Other installations on the strapping device - with the exception of a coupling of the device control with the control of the carriage - are not required.

Alternatively and not significantly more expensive is an embodiment, according to which the car has a grid-connected electric motor drive and electricity and control signals are fed wired.

In order to further reduce the retrofit effort, it is provided to integrate the majority of the control in the car itself or in a unit which can be coupled to the car. For this purpose, it is provided that the carriage is provided with a sensor which stops the carriage upon reaching the package and in particular that the carriage is provided with a sensor which stops him when reaching a parking position.

By largely including the control functions in a separate control unit, only a minimal communication with the control unit of the strapping device is necessary. Optionally, this may be a start signal from the strapping device to the carriage and a termination signal from the carriage to the strapping device after placement of the edge protector and another start signal from the device to the carriage after strapping and another termination signal from the carriage to the device Reduce after reaching the parking position. This greatly simplifies the retrofitting of an existing device, as profound changes in device control are not necessary.

It is further provided that the car is provided with a sensor that stops him when reaching a parking position. Further embodiments describe ways of guiding the carriage on the packing table. For example, provision is made for the packing table to be formed by a plurality of rolls forming a web and the rolls to form the guide for the carriage.

It is conceivable that the wheels of the car have a contour which congruent with the rollers and the wheels guide the carriage along the rollers.

It is also conceivable that the packing table and / or the covering or pressing plate has a groove for guiding the carriage, in which engages a guide member of the carriage.

Finally, it is alternatively provided that the guide is formed by arranged in the packing table and / or the covering or pressing plate induction loops, along which the carriage moves.

Further advantages of the invention and a better understanding of the same follow from the following description of an embodiment.

Show it:

1 : a carriage according to the invention for attaching an edge protector in side view,

2 : the car according to 1 in top view,

3 : the car according to 1 in backward view,

4 : a first schematic representation of the guidance of the carriage on a packing station,

5 : a second schematic representation of the guidance of the carriage on a packing station,

6 : a third schematic representation of the carriage guidance on a packing table,

7 : a fourth schematic representation of the guidance of the carriage on a packing table,

8th : a fifth schematic representation of the carriage's guidance on a packing station,

9 : a sixth schematic representation of the carriage guidance on a packing table,

10 a partial view of the device according to the invention with the carriage according to 1 in start or parking position,

11 : the representation according to 10 with representation of the car in approach to the package,

12 : Presentation according to 10 with representation of the car under the arrangement of an edge protection on the package.

In the figures, the carriage for attaching an edge piece to a package is indicated generally by the reference numeral 10 Mistake.

The car 10 is in its entirety first in the 1 to 3 shown, in which he is described in detail.

From the side view in 1 is apparent first that the car 10 first a chassis 11 comprises, which serves as a supporting component of the carriage construction. On the chassis 11 is in Driving direction front, first the holding tool 12 arranged. The connection of the holding tool 12 on the chassis 11 is realized by means of a joint to the holding tool 12 to change his inclination.

The car 10 is tilt-stable on three rollers out, where in the direction of travel at the front two support rollers 13 are arranged. The car 10 is powered by a rear drive pulley 14 emotional. An arranged in the rear area, pivoting flap 15 is with a tail sensor 16 coupled, whereas a front sensor 17 a pivoting movement of the holding tool 12 detected.

In one of the chassis 11 formed interior 18 of the carriage 10 is a powerful electric motor 19 arranged with the drive roller 14 is connected and this set for a forward or reverse drive in motion. Finally, the 1 to 3 an embodiment of the leadership of the car 10 presented on a packing table. In this embodiment, the chassis carries 11 in the area of the support rollers 13 one guide call each 20 , which engages in grooves or interstices of a packing table, not shown.

In the present embodiment, the car 10 intended to be placed on a roller table. Such a roller table comprises a plurality of rollers arranged parallel to each other and juxtaposed 22 , which are rotatably mounted in the device and optionally driven. On these rollers 22 Packages can be pushed through the device.

To ensure a stable guidance, have the in the 1 to 3 illustrated guide runners 20 each at its ends a slider 21 on, which has a form-congruent with the rollers guide surface.

In the 4 to 9 are schematically alternative ways of guiding the car 10 shown on a roller table. 4 initially shows four rolls 22 a roller table and two support rollers 13 in one the rollers 22 radial cutting representation. Out 4 it can be seen that the support rollers 13 conical to the tread 23 tapered roller edges 24 exhibit. The taper is dimensioned so that the flanks 24 to the space between two rollers 22 plunge. In this way it is ensured that the car 10 parallel to the longitudinal orientation of the rolls 22 is guided on the roller table.

An alternative of leadership on a roller table is in 5 , shown. Again, this is a sectional view in the radial plane of the rollers 22 , In this presentation, guide disks engage 25 in the spaces between the rollers 22 one. In the present embodiment, each support roller 13 over two circumferentially oriented and axially parallel from a spaced idler pulleys 25 ,

Alternatively, it is conceivable that only one substantially the distance between two rollers 22 in its width corresponding guide disc 25 on the support rollers 13 is arranged.

The guide disks 25 keep the car 10 in its movement parallel to the axial orientation of the rollers 22 ,

Another alternative to driving the car 10 is in 6 shown. Again, it is again a sectional view in the radial plane of the rollers 22 ,

In the embodiment of 6 There are a total of four support rollers 13 shown, which are arranged in two pairs. Every support roll 13 has one of an outer edge 26 to the inner flanks 27 towards conically inclined tread 23 on. The inner flanks 27 from the support rollers 13 of a pair point to each other so that the treads 23 fall conically to each other. Because each support roller pair 13 on a common roller 22 is arranged, run this during a movement of the car 10 self-centering on the rollers 22 and lead the car 10 parallel to the respective roll axis.

7 shows a further embodiment of support rollers 13 to guide the car 10 , Again, it is a schematic view, taking along the radial plane of the rollers 22 is cut.

In the 7 illustrated support rollers 13 have treads 23 on, the groove-like in the respective supporting role 13 are incorporated. The groove radius essentially corresponds to the radius of the rollers 22 on which the respective supporting role 13 seated. In that regard, roll the support rollers 13 positive fit on the rollers 22 off and lead the car 10 along the roll axis.

Another alternative embodiment for guiding the car 10 along rolls 22 is in 8th shown. Again, the view is again along a radial plane of the rolls 22 cut.

In the 8th illustrated support rollers 13 exhibit on their outer flanks 28 one guide disc each 25 on, leaving the guide disks 25 a supporting role 13 one roller each 22 between them and when moving the car 10 lead this along the roll axes.

A last exemplary embodiment for guiding the car 10 along rolls 22 is in 9 shown. Again, a sectional view is shown along a radial plane of the rollers 22 ,

The treads 23 the support rollers 13 are formed by a trapezoidal circumferential groove, in which the rollers 22 einliegen. In this way, the lead in 9 illustrated support rollers 13 the car 10 along the roll axis.

Based on 10 to 12 now becomes the function of the car 10 explained in a device for strapping packages.

A device for strapping packages is in the 10 to 12 shown in a partial view and in total by the reference numeral 40 Mistake. It includes a device frame 41 on which individual units are arranged. The packing table is made by individual rollers 22 formed, which are arranged in the paper plane in succession and one on a package carrier 42 , like pallet, arranged package 43 holds.

The car 10 is in 10 laterally outside the path of movement of the package 43 on a ramp-like holding device 44 switched off. In this position is a free movement of the package 43 over the rollers 22 through the device 40 possible.

In a netztebundenen electric drive, the holding device 44 the unit for loading one in the car 10 located on batteries and thus also serves as a charging station. Unless the car 10 mains operated, it is connected to a cable, not shown here for the transmission of electricity and control signals.

In 11 is the car 10 with his holding tool 12 ahead in the direction of travel X on the package 43 closed by one of the holding tool 12 held, here unspecified edge protection to the package 43 to apply. Depending on the design of the guide device of the car 10 are at least the support rollers 13 according to the 6 to 9 educated. Alternatively, the car 10 with guide skids 20 fitted. Both the support rollers 13 as well as the drive roller 14 run on the rollers 22 ,

In 12 has the car 10 the package 43 reaches and urges the edge protection against the flank 28 of the package 43 , This is the holding tool 12 pivoted, what about the front sensor 17 (S. 1 to 3 ) is detected. This stops further forward movement of the car 10 , After strapping the car is 10 by a corresponding control signal in the direction of movement Y back to the holding device 44 moves until he is back in the 10 is shown position. It hits the flap 15 on a suitable rail, what about the rear sensor 16 is detected, which stops the movement in the direction of Y. Now the strapped package 43 from the device 40 moved out, a newly umreifendes package 43 gets into the device 40 procedure and a new edge protection is in the holding tool 12 inserted. So then the process described above begins again.

In summary, a device for attaching an edge protector for a strapping device was presented with the present invention, which can be retrofitted easily and without problems, especially in existing machines, without the need for costly modifications to the device itself.

LIST OF REFERENCE NUMBERS

10

dare

11

chassis

12

holding tool

13

supporting role

14

capstan roller

15

flap

16

Heck sensor

17

front sensor

18

Interior of 11

19

electric motor

20

guide runner

21

slide

22

roller

23

tread

24

role edge

25

idler

26

outer flank

27

inside edge

28

flank

40

strapper

41

apparatus frame

42

Package carrier

43

package

44

holder

X

movement direction

Y

movement direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102011012207 [0002]

Claims (13)

Device for strapping packages ( 40 ) with a strapping frame, through which the strapping is guided, with a tightening and closing device, the strapping around the package ( 43 ) with a packing table, on which the package rests during the strapping process, optionally with a cover or pressing plate, which during the strapping process on the package ( 43 ), with means for attaching an edge protector to the package ( 43 ) between the package ( 43 ) and the strap is attached and the package ( 43 ) protects against damage by the strapping material and optionally with a package carrier on which the package ( 43 ) is moved through the device, characterized in that the means for attaching the edge protector of a car ( 10 ) is formed, which is movable by means of a drive on the packing table and / or the cover or pressing plate and a holding tool ( 12 ) has to arrange the edge protection. Apparatus according to claim 1, characterized in that the drive structurally independent of the device in the car ( 10 ) is integrated. Apparatus according to claim 1 or 2, characterized in that the packing table and / or the cover or pressing plate a guide for the carriage ( 10 ) along which the carriage ( 10 ) moved to the packing table. Device according to one of claims 1 to 3, characterized in that the carriage ( 10 ) has a non-electric motor-driven drive and is controlled by radio signals. Device according to one of claims 1 to 3, characterized in that the carriage ( 10 ) has a network-connected electric motor drive and electricity and the control signals are fed wired. Device according to one of the preceding claims, characterized in that the carriage ( 10 ) in a holding device ( 44 ), which is outside the path of movement of the package ( 43 ) through the device ( 40 ) is arranged. Device according to one of the preceding claims, characterized in that the carriage ( 10 ) is provided with a sensor that the car ( 10 ) when reaching the package ( 43 ) stops. Device according to one of the preceding claims, characterized in that the carriage ( 10 ) is provided with a sensor that stops him when reaching a parking position. Device according to one of the preceding claims, characterized in that a magazine and a removal tool is provided which the holding tool ( 12 ) of the carriage ( 10 ) equipped with an edge protector. Apparatus according to claim 3, characterized in that the packing table of several, forming a web rolls ( 22 ) is formed and the rollers ( 22 ) the guide for the car ( 10 ) form. Apparatus according to claim 11, characterized in that the wheels of the car ( 10 ) have a contour with the rollers ( 22 ) and the wheels are congruent ( 10 ) along the rollers ( 22 ) to lead. Apparatus according to claim 3, characterized in that the packing table and / or the covering or pressing plate has a groove for guiding the carriage ( 10 ) into which a guide member of the car ( 10 ) intervenes. Apparatus according to claim 3, characterized in that the guide is formed by arranged in the packing table and / or the covering or pressing plate induction loops, along which the carriage ( 10 ) emotional.

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