DE102006059770B3 - Packaging method for cutting off projecting ends on foil bags by a torch with pieces of packaging of different sizes envelopes the pieces of packaging in foil material by welding them in - Google Patents

Abstract

A first machine unit (FMU) (11) takes the form of a packing station with a vertical packer. A second machine unit (51) has a rotating station. On the FMU there is a machine frame (12) and a covering hood (13). On the front side there is a moving control desk (32). Two mounting devices (14,15) each carry foil reserve rolls (16,17), from each of which strips of flat foil material are unwound. Independent claims are also included for the following: (1) A device for cutting off projecting ends on foil bags by a torch with pieces of packaging of different sizes in respect of the direction of conveying a preset width; (2) A device for enveloping and welding in pieces of packaging of different sizes in foil material.

Description

The The invention relates to a method and a device for welding off supernatants on foil bags with respect to the transport direction predetermined width, the Packgutstücke changing Size contain.

The The invention further relates to a method for wrapping and shrink-wrapping in particular flexible Packgutstücken of varying size or changing Formats, for example textiles, and a device for carrying out this Process.

From the DE 196 21 205 C2 a device is known, are surrounded with the Packgutstücke tubular of a film web. In each case in front of and behind a packaged piece of goods, the film tube is cut off with a separating welding knife oriented transversely to the transport direction of the film web. With further arranged on both sides of the Packgutstückes side Trennschweißmessern then lateral Trennschweißnähte be generated, thereby closing the film tube as packaging bag on all sides around the Packgutstück. In this case, the length of the separated film tube sections can be adapted to the detected with sensor means length of Packgutstücke. However, since the width of the film bag is determined by the fixed distance of the lateral Trennschweißmesser, an adaptation to the width of the Packgutstücke is not possible, but lateral projections can arise. In order to remove these, the transport direction of an already sealed Packgutstückes is changed by 90 ° and separated the already closed film packaging with another transverse to the new transport direction separating welding immediately before or behind the Packgutstück in a final separation process. The dimensions of the device used for this purpose are extremely unfavorable with respect to the required footprint.

From the DE 10 2005 025 706 B3 is a return packaging machine for wrapping and welding of Packgutstücken of varying size in film material known in which aligned on a stationary Ausrichtkante Packgutstücke are wrapped in a Halbfolienschlauch and transverse cross-welding between the individual Packgutstücken be placed transversely on a Verschließkante, whereupon longitudinal welding along the still open longitudinal edge of the half-film tube takes place. The transverse displacement of Packgutstücke not yet closed hose cover is technically complicated.

Of the Invention is based on the object, a method and an apparatus with which supernatants on foil bags, have the width defined with respect to the transport direction, however packaged items changing size included, in room economic Way can be separated

Farther to provide a method and an apparatus for wrapping and shrink-wrapping of packaged goods changing size in foil material so improved, are packaged goods with a large span of stack heights and of formats in changing order in space economics Way can be safely packaged, with the application on Banderoliereranlagen as well as on Halbfolienschlauchanlagen be possible should.

The solution consists in a method for welding off supernatants of foil bags with respect to the transport direction of predetermined width, the Packgutstücke changing size, the Packgutstücke relative to the transport direction in each case inside a longitudinal edge of the foil bag tightly abut and on the other longitudinal edge of the foil bag alternately wide one-sided protrusion over the individual packaged goods, with the following steps:
Turning the individual items to be packaged by 90 °, so that the supernatant lying supernatant in the transport direction to the front or back,
Further transport of the individual items to be packaged in the previous transport direction, separation of the supernatants by cross-section welding of the foil bags in front of or behind the individual packaged goods.

The solution also consists in a method for wrapping and welding of packaged items of varying size in film material, with the following steps:
Wrapping the individual packaged goods in packaging film, with top and bottom film layers laying on the top and bottom sides of the packaged goods,
first cross-cutting welding of the upper and lower film layers transversely to the transport direction of the Packgutstücke each directly behind the rear end face and in front of the front end face of the individual Packgutstücke,
Longitudinal separation welding of the upper and lower film layers on at least one longitudinal side of the individual Packgutstücke at a fixed distance from the other longitudinal side of the individual Packgutstücke, so that all sides closed foil bag predetermined width regardless of the size of the individual Packgutstücke form, the Packgutstücke each inside a longitudinal edge of the Tightly against the film bag and at the other longitudinal edge of the film bag, a varying overhang over the individual Packgutstücke arises,
Turn the individual items to be packaged by 90 °, so that the previously lying laterally supernatant in Transportrich direction forwards or backwards,
Further transport of the individual packaged goods in the previous transport direction,
Separating the supernatants by cross-section welding of the foil bags close to or behind the individual packaged goods,
wherein the Packgutstücke go through an overall linear transport path.

The Dimensions of the individual packaged goods can be determined with corresponding sensors be detected. The captured Data are then in control signals for driving the longitudinal transport means and for exercise the first cross-cutting weld and the final one Quertrennschweißung implemented.

in this connection is provided in particular that the first cross-cutting welding as far as the separation process is concerned, only a central area detected and contiguous lateral Edge strips exist. The Welds can hereby cover the entire width of the film webs. The edge stripes connect the individual wrapped Packgutstücke each other and can with appropriate drive and guidance the transport of the packaged goods support.

At the subsequent Longitudinal part welding the outside longitudinal welds lying lateral edge strips then separated from the foil bag and the waste parts wound up. The longitudinal separation welding entlag the long side the packaged goods can with standing foil bags in each case at the same time on the whole Length of foil bag respectively. Preferably, however, the longitudinal separation welding takes place along the long side of the packaged items advancing in moving foil bags, wherein stationary thermal Separation Schweißmesser can be used.

in this connection is an adjustment of the transverse distance of the means for longitudinal separation welding on the variable Width dimensions of the individual packaged goods omitted in order to achieve optimum To achieve packaging performance. With the longitudinal separation welding takes place an all-round welding the packaged goods by welding the upper and lower film layers over the entire length of the packaged goods.

The unweld the first supernatants lying on one side only after turning the invention the packaged goods around 90 °, being exclusively the feed in the original Transport direction through the second cross-cutting device must be controlled individually. There are no adjustments the adjustment of the longitudinal or cross-cut welders required. By rotating the Packgutstücke invention is a purely linear concatenation of all parts of the plant possible, so that space economic installation plans even when using multiple devices in an operating building realize to let. A transverse displacement of the foil bag in the transport, at which makes it easy to slip and deform the packaged goods within the foil pouch could come will be complete avoided.

One Inserting the packaged goods at a lateral edge is for the further process sequence presuppose. An automation of a side-by-side Inserting or transferring is with simple suitable means of delivery possible. The recording of the length and the height the individual packaged goods can by means of suitable sensors, in particular contactless, respectively.

To a first procedure (four-sided welding Machine) is provided that a Connecting two film webs to a foil curtain in front of the front End faces of the packaged goods in a first transport position and the transverse cutting welding behind the rear end faces of the packaged goods in the same place in one second transport position takes place, in particular for two consecutive packaged items in one operation.

To a second procedure (forming shoulder machine) it is suggested that a Semi-foil tube by unrolling double-lying material from a roll of material, spreading the two layers and deflecting made by 90 ° is, or that flat film material from a roll of material unrolled and in a longitudinal folding station to a half-film tube is placed twice, with the individual Packgutstücke then in the half-film tube along introduced being largely in abutment with the connecting edge the upper and lower film layers are. This is followed by cross-cutting welding the front end faces of Packgutstücken in a first transport position or a cross-cutting welding behind the rear end faces of the packaged goods in the same place in one second transport position, in particular for two consecutive packaged items in one operation.

While at the former banding technique the longitudinal separation welding in solid Distance from each other at two longitudinal edges must be done is a longitudinal welding process only on one longitudinal side in the Halbfolienschlauchtechnik required, with the weld a fixed transverse distance from the opposite longitudinal edge the packaged goods has, which is given by the Anlagefluchtlinie.

The laterally separated supernatants, ie the waste components are removed in the transport direction. In this case, it is particularly advantageous to decouple the time or speed of the further transport of the separated supernatants from the further transport of the wrapped package item in order to prevent a renewed sticking of the film material at the separation point. The individual laterally separated supernatants should be removed as exactly as possible in the longitudinal direction.

The turning according to the invention the individual packaged goods takes place after a lifting of the longitudinal transport means, wherein after turning a lowering on the longitudinal transport means takes place. The previously supernatant supernatant is preferably rotated backwards. Then be the packaged goods individually transferred to another transport position in which they have a second cross-cutting device have passed through exactly, wherein the supernatant in a subsequent cross-cutting welding on the entire width of the film bag is separated. The separated supernatants are horizontally or downwards transversely to the transport direction.

In a particularly favorable process management it is proposed that at least the upper film layer before the all-round welding the Foil bag for pressure equalization in the area of the initially lateral supernatant is perforated and the perforation in the final transverse cutting to Separating the supernatant be separated from the foil bag. This allows excessive air pockets in the Foil bag avoided on first-time all-round welding be reduced or the times until the first all-round welding become. Since the perforations provided in the supernatant to be finally welded off are the remaining after the final cross-cut welding Total packing finally hermetically sealed.

Packaged goods from maximum width are also rotated in the turning station by 90 °, although not initially laterally or after turning backward supernatant is present, which would have to be separated. In that regard, stays with these Packgutstücken get the perforation in the foil bag.

The solution consists in addition in a device for welding off supernatants of foil bags with respect to the transport direction predetermined width containing Packgutstücke of variable size,
characterized by the features:
a turning station for turning the individual packaged goods by 90 °,
a cross-cutting device for welding and separating a supernatant at a front or rear end side of the packaged goods, which originally formed a longitudinal side of the packaged goods,
as well as longitudinal transport means in a linear arrangement and concatenation.

The solution also consists in a device for wrapping and welding of Packgutstücken of varying size in film material comprising:
Means for wrapping the individual items to be packaged in packaging film, so that upper and lower layers of film are placed on the upper and lower sides of the packaged goods,
a first cross-cutting welding device for welding and separating foil sheaths respectively at the rear end side and at the front end side of the packaged goods,
Longitudinal separation welding devices for closing foil bags on at least one longitudinal side of the individual packaged goods, which are arranged at a fixed transverse distance to the opposite long side of the respective Packgutstücke,
a turning station for turning the individual packaged goods by 90 °,
a second cross-cutting device for welding and separating a supernatant at a front or rear end side of the Packgutstücke, which originally formed a longitudinal side of the Packgutstücke,
as well as longitudinal transport means in a linear arrangement and concatenation with the individual devices and the turning station.

The Significant features here are longitudinal separation welding devices in fixed positions, in particular in pairs at a fixed transverse distance from one another, provided the packaged goods in a four-sided welding Machine in a film curtain formed from two flat films retract, or a single longitudinal separation welding device in fixed transverse distance to the contact edge, if the Packgutstüc ke at a Formschultermaschine are wrapped in a half-film tube. In both cases is one after the longitudinal split welding eccentric laterally offset internal system of the packaged goods on one longitudinal edge in the foil bag, since the packaged goods are adjacent to a contact edge be inserted into the device.

One Waiver of adjustment means for constantly changing setting for the Longitudinal separation welding devices simplified to an alternating width of the individual Packgutstücke the device essential.

The lateral distance of the two-sided longitudinal separation welding devices from each other or the side distance of the individual longitudinal separation welding device from the opposite An Laying rail for the packaged goods is in this case fixed, so that the longitudinal separation welding can be done with simplified means and accelerated.

One outstanding feature of the device according to the invention lies in one Turning station, in which the packaged goods from their unbalanced lateral position regarding the foil bag in a twisted by 90 ° Position spent in the previously supernatant supernatant now forward or preferably backward relative to the Packgutstücken points.

Finally is a second cross-cutting device Of importance, the now in the transport direction forward or preferably posterior supernatant can weld, So that the packaged items changing size or changing formats on all four sides are suitable and welded without major residual space. The passage of the individual Packgutstücke by the second Quertrennschweißvorrichtung is easy to scan by suitable means to the cross-cutting device to control afterwards.

The Turning station preferably has a plurality of in a grid arranged in a plane transport rollers, in particular are drivable, the rotating station a liftable and orderly each 90 ° rotatable Lifting and rotating table having a variety of in a grid arranged breakthroughs comprises in two at 90 ° from each other various rotary positions so lowered onto the transport rollers are that these the breakthroughs penetrate with upper roller segments. This is in particular provided that the Transport rollers and breakthroughs arranged in a square grid. Furthermore, it is proposed that the Lift and turntable over a lifting and turning gear with cams with a single stepper motor connected is.

The Rolls of the turning station are divided into four jointly driven blocks, between which a cross-shaped Arrangement of suction opening in the lifting and rotating table can be, when lifting and turning with Negative pressure applied to slipping of the foil bag due to inertial forces prevent.

Immediately behind or preferably immediately before the second cross-cutting device in the transport direction means for lateral lateral removal of the separated supernatants are provided, as for example in the DE 196 21 205 C2 are described, which is incorporated herein by reference. Alternatively, instead, novel means may be provided for transversely discharging the separated supernatants, as described in greater detail below.

The Rollers of an exit roller conveyor can be starting with the second cross-cutting device be rubberized, to stop a foil bag to stop so effectively that the enclosed packaged goods due to inertial forces in the Foil bag slips forward, so that the determined by the final cross-cut welding bag length can be minimized.

One preferred embodiment a device according to the invention is shown in the drawings and will be described below.

• a) in Seitenansicht
• b) in Draufsicht;

1 shows an overall device

• a) in side view
• b) in plan view;

• a) in Seitenansicht
• b) in Draufsicht;

2 shows the turning station of a device according to the invention

• a) in side view
• b) in plan view;

3 shows a separated supernatant discharge device in a first embodiment;

4 shows a separation device for separated supernatants in a second embodiment.

The two representations of 1 will be described together below.

The device clearly comprises a first machine unit 11 , in the form of a packing station, which constitutes a so-called Hochpacker, and a second machine unit 51 that is a turning station 55 includes.

At the machine unit 11 are a machine frame 12 and a cover 13 to distinguish. At the front is a sliding control panel 32 shown. There are two brackets 14 . 15 to recognize, each a foil supply roll 16 . 17 wear, from which each band-shaped flat film material is unwound, the upper drive and guide means 26 and over lower drive and guide means 27 merged and welded together to wrap wrapped in the device Packgutstücke on all sides with foil material.

The packaged goods are placed in an insertion device 19 introduced from the left and go through the entire device from left to right. The insertion device 19 essentially comprises an intake conveyor belt 18 as well as right and left guide rails 20 . 21 , where the right guide rail 20 serves as an attachment rail for all packaged goods. Here, the Packgutstücke can be manually or mechanically with mechanical agents in plant the right guide rail 20 to be brought. An investment line is designated A. On the intake conveyor belt 18 follows an outlet conveyor belt 22 , where the conveyor belts 18 . 22 form a horizontal transport plane T in successive gender arrangement. The drive and guide means 26 . 27 for the lower film web and the upper film web cause the film webs in front of a first cross-cutting device 28 be merged in the transport plane T and in the first cross-cutting device 28 each before and behind each Packgutstück be connected by cross-cutting with each other. Here, the lower film web between the inlet conveyor belt 18 and the outlet conveyor 22 led up to the transport plane T, so that the lower film web comes to rest on the underside of the Packgutstücke, while the upper film web overlays the front end, the top and the rear end of the Packgutstücke. A non-contact detection of the height and the length of the individual Packgutstücke in the region of the inlet into the device ensures that each Packgutstück immediately after passing through the first Quertrennschweißvorrichtung 28 is stopped and then under the action of a lowerable crosspiece of the first cross-cutting device 28 the two film webs are connected directly behind a Packgutstück to loop-shaped wrapping of Packgutstückes, wherein the two film webs are simultaneously connected to each other immediately before the next Packgutstück and the film webs between the two emerging welds are separated by means of a cutting edge.

The both welds are by arranged parallel to the cutting edge on the cross-beam Sealing strips or upper punch generated, which is located on a slightly below Lowering the transport plane T lying lower stamp, the for welding and disconnect at the same time over the Transport level T is raised.

On in this way arise around the Packgutstücke around film sleeves, the rest against the top and bottom as well as the front and rear end faces, while the two sides of the packaged goods are still open. The servings have the form of strap loops, each with lateral projections provided are.

from Separation process are except two side edge strips on those the packaged goods still together and the for the further transport of Packgutstücke be claimed.

At the crossbeam of the first cross-cutting device 28 is a cutting tool on the inlet side 23 laterally offset, with each of the separation and welding process, ie each time the upper and lower film webs are welded together, a 5 mm wide slot is created which penetrates the film webs. This slot later serves to vent the closed foil bag.

Immediately on the outlet side of the cross-cutting device 28 but independently controllable from this, is a horizontal with a vertical actuating cylinder adjustable ventilation plate 29 arranged, which is covered on the bottom with foam and hangs before each cross-cutting process on the respective Packgutstück to press the upper sheet to this. In this case, the displaced air can escape at the rear edge of the aforementioned belt loop, the lateral projections of which are already compressed in the region of the edge strips of closing and drive means.

During the further transport of the packaged goods which are welded all around in said belt loops by means of the outfeed conveyor belt 22 regardless of the specific width of the individual Packgutstückes a longitudinal separation welding on both sides of the Packgutstückes at a fixed distance from each other, wherein the transverse distance of two longitudinal separation welding devices 24 . 25 is predetermined and about the transverse distance of the guide rails 20 . 21 corresponds to each other. The longitudinal separating welders 24 . 25 preferably have fixed thermal welding blades. The upper film web and the lower film web are first combined for longitudinal split welding on both sides of the Packgutstücke by the closing and drive means in a plane. This plane may be above the transport plane T, so that both parts of the lower film web and parts of the upper film web are used to form the lateral parts of a closed film bag. In the longitudinal separation welding devices 24 . 25 be separated simultaneously with the longitudinal welding, the lateral projections on both sides of the Packgutstücke, being applied by the original orientation of Packgutstücke, on the Anlagefluchtlinie A the individual Packgutstück each right in the transport direction in an oversized foil bag inside. The separated on both sides supernatants, which are continuously interconnected, are driven and on coils 30 . 31 , the front side of the machine frame 12 are arranged, wound up. The packaged goods, which are welded in on all sides, are then transported via the discharge conveyor belt 22 from the machine unit 11 discharged and into the machine unit 51 transferred.

Also on the machine unit 51 are a machine frame 52 and a cover 53 to recognize. The machine unit 51 includes an inlet roller track 54 , which at a small distance in the same direction of transport to the outlet conveyor belt 22 connects, a turning station 55 and an exit roller conveyor 56 , The turning station 55 includes a lift and turntable 57 with a lifting and turning gear 58 as well as drivable rollers 59 , which are arranged in a square grid and each with an upper segment of the punched with hub and turntable 57 penetrate into its rest days. At least the length of the individual Packgutstücke is when entering the turning station 55 detected with non-contact sensor means. Once a packaged goods in the transport direction in the middle of the lifting and rotating table 57 rests, the roles become 59 in the area of the turning station 55 shut down and the lift and turntable 57 raised, so that the Packgutstück rests on the openwork surface of the lifting and rotating table and is lifted from the rollers. Thereafter, the lifting and rotating table is rotated by 90 °. The supernatant of the film bag, which previously lies on the left in the transport direction, is hereby rotated in the transport direction towards the rear relative to the packaged item. Subsequently, the lift and turntable 57 lowered again and the roles 59 in the area of the turning station 55 are driven again, so that the Packgutstück on the separately driven outlet roller conveyor 56 arrives. After complete passage of a Packgutstückes by a second Quertrennschweißvorrichtung 60 becomes the exit roller conveyor 56 stopped and now in the transport direction to the rear supernatant in the cross-cutting device 60 separated from the foil bag. Also the cross cutting device 60 has a height-adjustable crossbar, to which a separating welding knife or a heated punch is arranged, which can be lowered by means of the cross-beam to a slightly below the transport plane T lying lower punch. Immediately before the cross-cutting device 60 is a device for discharging the now completely separated from the tubular bag waste content. The discharge device fits within the roller conveyor 56 in a narrow area on the inlet side of the cross-cutting device 60 one.

Instead of the inlet roller conveyor 54 It is also possible to use an infeed conveyor belt consisting of several parallel endless belts.

After removal of the waste component, the packaged piece, which is tightly welded on all sides, is removed by means of the outlet roller conveyor 26 from the machine unit 51 discharged.

Regarding the Sensors and the controller are to address the following details.

At the machine unit 11 is an arrangement in the inlet area 71 arranged by a plurality of superimposed horizontally arranged photocells, with which the height of the incoming Packgutstücke can be detected. Due to the height determined, the height of the cross-beam of the cross-cutting device 28 controlled so that the Packgutstücke the cross-cutting device 28 can pass through trouble-free.

Also in front of the cross-cutting device 28 is a vertically mounted light barrier 72 provided, after determining the passage of a Packgutstückes the outlet conveyor belt 26 with a certain amount of caster controls so that this immediately after passing through the cross-cutting device 28 is stopped by the Packgutstück. In this case, the required trailing of the upper film web is controlled by the above-mentioned detected height.

At the inlet to the machine unit 51 there is a vertically aligned light barrier 73 , which upon detection of an incoming Packgutstückes directly the inlet conveyor belt 18 stops and thus prevents the Nachschieben further Packgutstücke, provided that it must be noted at the same time that the inlet roller conveyor 54 the machine unit 51 stationary. The latter may be the case when the turning station 55 is occupied with a Packgutstück.

At the machine unit 51 is another vertically aligned light barrier 74 arranged the inlet roller conveyor 54 stops after the entry of a Packgutstückes, if it is certain that there is still a Packgutstück on the turning station 55 located. Only when such Packgutstück the turning station 55 has left, is the inlet roller conveyor 54 driven again.

With another vertically aligned photocell 75 will be the length of the turning station 55 incoming Packgutstückes detected, taking into account an appropriate tracking a central position in the transport direction of Packgutstückes with the lifting and turntable 57 is sought before the roles 59 the turning station 55 be stopped.

Immediately behind the light barrier 75 is a horizontally oriented transversely to the direction of transport light barrier 76 , with which a complete separation of two consecutive packaged goods is checked. Unless it is to interrupt this photocell 76 comes after passage of a leading Packgutstückes, it is prevented that the leading Packgutstück is stopped in the turning station; Rather, the corresponding successive, still connected by film parts Packgutstücke without turning in the turning station 55 and without transverse welding in the cross-cut welding station 60 through the machine unit 51 passed through and then if necessary. manually discharged.

Before the cross-cutting device 60 there is another vertically arranged light barrier 77 , after determining the passage of a Packgutstückes the outlet roller conveyor 56 with a certain amount of caster controls so that this immediately after passing through the cross-cutting device 60 is stopped by the Packgutstück so that the Querabschweißen the rearwardly projecting supernatant can be done very close to Packgutstück. This air can escape through the previously mentioned slot, which ultimately remains in the separated supernatant.

The two representations of 2 will be described together below.

It is a lift and turntable 57 represented by approximately square shape, a plurality of arranged in a square grid openings 61 and from a lifting and rotating device 58 lifted from the position shown and can be rotated gradually by 90 °. The lift and turntable 57 has rounded corners 62 to keep the indicated by a circle pivot range K low. The lifting function as well as the twisting is powered by a single stepper motor 63 with a cam-controlled lifting and turning gear 64 completed. Below the lift and turntable 57 lies an arrangement of roles 59 consisting of four square blocks, each block having a plurality of rollers on a common shaft, with an equally large plurality of shafts in each block lying side by side in parallel. In the lowest position of the lift and turntable 57 enforce the roles 59 with their upper segments the breakthroughs 61 while the openwork surface 65 the lifting and rotating table in a raised position thereof above the upper periphery of the rollers 59 lies. By lifting the lifting and rotating table 57 can be an overlying Packgutstück of the roles 59 be lifted so that it can be freely rotated with the hub and turntable. After turning 90 °, the lift and turntable can 57 be lowered again, with the rollers 59 again in the square grid of breakthroughs 61 engage in the lifting and rotating table, so that an overlying Packgutstück after turning by 90 ° again by means of the drivable rollers 59 can be moved in the unchanged direction of transport. Between the mentioned blocks of rollers 59 are in a cross-shaped arrangement, a plurality of suction openings 65 that have vacuum channels 66 only when driving and turning the hub and turntable 57 be applied to prevent slipping of the foil bag.

In 3 a discharge device for separated overhangs in a known per se embodiment is shown, which is arranged in front of the second cross-cutting device within the outlet roller conveyor. The discharge device 81 is shown viewed in the transport direction and includes a carrier assembly 82 at the about a parallelogram 83 with adjusting cylinder 84 a set of rollers 85 is arranged liftable. This is shown in the figure in the lowest position in which the rollers on the upper run 87 an endless belt arrangement 86 rest. The endless belt 88 This is from a drive motor 89 drivable while the rollers of the roller set 85 run free and be taken from the endless belt.

A cutting edge of a separated overhang is when lowering the parallelogram 83 between roller assembly 85 and endless belts 88 trapped and upon actuation of the drive motor 89 discharged horizontally and transversely to the transport direction from the general transport. A general with 90 designated deflection deflects the separated supernatant laterally from the transport down.

In 4 is a discharge device 91 shown in a novel second embodiment, wherein the representation represents a vertical longitudinal section in the transport direction in the region of the second cross-cutting device. The transport level T as well as roles 92 the exit roller conveyor 56 are just as recognizable as parts of the second cross-cutting device, namely a welding punch 93 and a lower stamp 94 ,

Immediately before the cross-cutting device on the inlet side is independent of the welding punch 93 actuatable pressure bar 95 with which the separated supernatant Ü is deflected downwards during the separating welding or immediately after the separating welding, where it passes between a fixed drive roller 96 and a pivoting roller 97 can be trapped. After retracting the bar 95 and driving the drive roller 96 the supernatant can be discharged vertically downwards from the transport path to the transport direction. On the outlet side of the cross-cutting device is another role 98 the exit roller conveyor 56 recognizable, in particular, as mentioned earlier, may have a rubberized surface, as well as the adjoining to the right wide roles.

arrows give in all figures the transport direction again.

11

packing station

12

machine frame

13

cover

14

upper bracket

15

lower bracket

16

upper film roll

17

lower film roll

18

Einlaufförderbad

19

infeed

20

right guide rail

21

left guide rail

22

Exit conveyor belt

23

cutting tool

24

Longitudinal separation welder

25

Longitudinal separation welder

26

upper managerial and tightening agents

27

lower managerial and tightening agents

28

Cross cutting welder

29

vent plate

30

Kitchen sink

31

Kitchen sink

32

control panel

51

rotary and welding station

52

machine frame

53

cover

54

Feed roller conveyor

55

turning station

56

Outfeed roller conveyor

57

lifting and turntable

58

lifting and turning device

59

roll

60

Cross cutting welder

61

breakthrough

62

corner

63

stepper motor

64

lifting and rotary gearbox

65

suction

66

Vacuum channel

81

reject device

82

carrier

83

parallelogram

84

actuating cylinder

85

roller set

86

belt arrangement

87

upper Trum

88

endless belts

89

drive motor

90

redirecting

91

reject device

92

transport roller

93

upper punch

94

lower punch

95

Depressing bar

96

capstan

97

portable role

98

transport roller

A

System alignment

T

transport plane

K

swivel range

Claims (44)

Method for welding off supernatants of foil bags with covered on the transport direction of predetermined width, the Packgutstücke changing Size included, wherein the Packgutstücke related on the transport direction in each case on the inside at a longitudinal edge the foil bags are tight and at the other longitudinal edge the film bag a changing wide one-sided projection on the individual packaged goods is present, characterized by the steps: Turning the individual packaged goods around 90 °, so that the previously supernatant supernatant pointing forwards or backwards in transport direction, Next transport the individual packaged goods in the previous transport direction, Separate the supernatants by Cross cutting welding the foil bag in front of or behind the individual packaged goods. Method according to claim 1, characterized in that that this Turning the individual packaged goods under lifting and lowering of the packaged goods from and to longitudinal transport he follows. Method according to one of claims 1 or 2, characterized that at Turning the individual packaged goods the previously supernatant supernatant each rotated in the transport direction to the rear. Method according to one of claims 1 to 3, characterized that the respectively in front of or behind the packaged items of the foil bags separated supernatants across be removed to the transport direction to the side. Method according to one of claims 1 to 3, characterized that the respectively in front of or behind the packaged items of the foil bags separated supernatants vertically be discharged to the transport direction down. Method according to one of claims 1 to 5, characterized that each the longitudinal dimensions and the height the individual packaged goods before cross-cutting welding with contactless Detected sensor means become. Method according to one of claims 1 to 6, characterized in that in each case the length of individual Packgutstücke is detected before turning with non-contact sensor means. Method according to one of claims 1 to 7, characterized that each the length the individual packaged goods exclusively of the front and rear supernatant before the second cross-cut welding with contactless Detected sensor means becomes. Method for wrapping and welding of Packgutstücken changing size in foil material, with the steps: Wrapping the individual packaged goods in packaging film, wherein upper and lower layers of film on the upper and lower sides the packaged goods lay, first cross-cutting welding of the upper and lower film layers transversely to the transport direction of the Packgutstücke each directly behind the rear end face and in front of the front end side of the individual packaged goods, Longitudinal splitting of the upper and lower film layers on at least one longitudinal side the individual packaged goods at a fixed distance from the other longitudinal side of the individual Packgutstücke, so that yourself closed on all sides foil bag of predetermined width regardless of form the size of the individual packaged goods, where the Packgutstücke each inside on a longitudinal edge the foil bags are tight and at the other longitudinal edge the film bag a changing wide one-sided projection on the individual packaged goods arises Turning the individual Packgutstücke by 90 °, so that the previously lying laterally de supernatant pointing forwards or backwards in transport direction, Next transport the individual packaged goods in the previous transport direction, Separate the supernatants by second cross-cut welding the foil bag in front of or behind the individual packaged goods. Method according to claim 9, characterized in that that this Insertion of the individual packaged goods by moving into one from a top sheet and a bottom sheet joined vertical peelable film curtain, which is transverse to the transport direction spans. (four-sided welding machine) Method according to claim 9, characterized in that that this Insertion of the individual packaged goods by moving into one endless from an upper film web and a lower film web, on a longitudinal edge are connected, existing extending in the transport direction half-tube film he follows. (Form shoulder machine) Method according to one of claims 9 to 11, characterized that this Turning the individual packaged goods under lifting and lowering of the packaged goods from and to longitudinal transport he follows. Method according to one of claims 9 or 12, characterized that at Turning the individual packaged goods the previously supernatant supernatant each rotated in the transport direction to the rear. Method according to one of claims 9 to 13, characterized that the respectively in front of or behind the packaged items of the foil bags separated supernatants across be removed to the transport direction to the side Method according to one of claims 9 to 13, characterized that the respectively in front of or behind the packaged items of the foil bags separated supernatants vertically be discharged to the transport direction down. Method according to one of claims 9 to 15, characterized that this Alongside welding along the long sides the packaged goods progressively takes place when moving foil bags. Method according to one of Claims 9 to 16, characterized that the Upper film layer in each case before the first cross-cutting of the film bag behind the packaged goods to the top of the packaged goods pressed becomes. Method according to one of claims 9 to 17, characterized that at least the upper foil layer before the all-round welding of the foil bag for pressure equalization in the area of the initially lateral supernatant is perforated and the perforations at the final second Cross cutting welding for separating the supernatant from Foil bags are separated. Method according to one of claims 9 to 18, characterized that each the longitudinal dimensions and the height the individual packaged goods before cross-cutting welding with contactless Detected sensor means become. Method according to one of claims 9 to 19, characterized that each the length of the individual packaged goods before turning with non-contact Detected sensor means becomes. Method according to one of claims 9 to 20, characterized that the complete separation the foil bag after the first cross-cut welding and the longitudinal split welding with non-contact Sensor means tested becomes. Method according to one of claims 9 to 21, characterized that each the length of the individual packaged goods exclusively of the front and rear supernatant before cross-cutting welding with contactless Sensor means is detected. Device for welding overhangs on film bags with a predetermined width in relation to the transport direction, containing packaged items of variable size, characterized by the features: a turning station ( 55 ) for turning the individual packaged goods by 90 °, a cross-cutting device ( 60 ) for welding and separating a supernatant at a front or rear end side of the Packgutstücke, which originally formed a longitudinal side of the Packgutstücke, and longitudinal transport means ( 18 . 22 . 59 . 54 . 56 ) in a linear arrangement and concatenation. Apparatus according to claim 23, characterized in that the turning station ( 55 ) a plurality of arranged in a grid in a plane transport rollers ( 59 ), which are in particular jointly drivable bar, and that the turning station a liftable and rotatable by at least 90 ° lifting and rotating table ( 57 ), which has a plurality of perforations arranged in a grid ( 61 ) which in two rotational positions different from each other by 90 ° on the transport rollers ( 59 ) are lowerable that these breakthroughs ( 61 ) penetrate with upper roller segments. Apparatus according to claim 24, characterized in that the lifting and rotating table ( 57 ) with suction openings ( 65 ), which are subjected to negative pressure during lifting and turning. Device according to one of claims 24 or 25, characterized in that the transport rollers ( 59 ) and the breakthroughs ( 61 ) are arranged in a square grid. Device according to one of claims 24 to 26, characterized in that the lifting and rotating table ( 57 ) via a lifting and turning gear ( 58 ) with a stepper motor ( 63 ) connected is. Device according to one of claims 23 to 27, characterized in that immediately before the cross-cutting-welding device ( 60 ) is provided a pair of endless belts or sets of rollers which rotate drivable transversely to the transport direction and run apart from each other separable. Device according to one of claims 23 to 27, characterized in that immediately before the cross-cutting-welding device ( 60 ) is arranged a pair of below the transport plane T separable from each other running roles with transverse to the transport direction axes, of which at least one is drivable. Device according to claim 29, characterized in that immediately before the second transverse cutting-welding device ( 60 ) a height-adjustable low-pressure strip for introducing a welded-over projection between the separate rollers is provided. Device according to one of claims 23 to 30, characterized in that the rollers of an exit roller track ( 56 ) behind the cross-cut welding device ( 60 ) are gummed for effectively stopping the film bag. Device for wrapping and welding in packaged goods of varying size in film material comprising: means for wrapping the individual packaged goods in packaging film so that upper and lower layers of film lay on the upper and lower sides of the packaged goods, a first transverse cutting device ( 28 ) for welding and separating foil sheaths in each case on the rear end side and on the front end side of the individual packaged goods, longitudinal separation welding devices ( 24 . 25 ) for closing foil bags and separating edge strips on at least one longitudinal side of the individual items to be packaged, which are arranged at a fixed transverse distance from the opposite longitudinal side of the respective items to be packaged, a turning station (US Pat. 55 ) for turning the individual packaged goods by 90 °, a cross-cutting device ( 60 ) for welding and separating a supernatant at a front or rear end side of the Packgutstücke, which originally formed a longitudinal side of the Packgutstücke, and longitudinal transport means ( 18 . 22 . 59 . 54 . 56 ) in a linear arrangement and concatenation. Device according to claim 32, characterized in that that the Means for driving a device for generating a transport direction peelable vertical film curtain, which the packaged goods of wrapped in the front side, include. (four-sided welding Machine) Device according to claim 32, characterized in that that the Means for driving a device for generating a transport direction extending endless hemi-foil tube comprising the Packgutstücke of a long side wrapped in. (Form shoulder machine) Device according to one of claims 32 to 34, characterized in that the turning station ( 55 ) a plurality of arranged in a grid in a plane transport rollers ( 59 ), which are in particular jointly drivable, and that the turning station a liftable and rotatable by at least 90 ° lifting and rotating table ( 57 ) having a plurality of perforations ( 61 ) which in two rotational positions different from each other by 90 ° on the transport rollers ( 59 ) are lowerable that these breakthroughs ( 61 ) penetrate with upper roller segments. Apparatus according to claim 35, characterized in that the lifting and rotary table ( 57 ) with suction openings ( 65 ), which are subjected to negative pressure during lifting and turning. Device according to one of claims 35 or 36, characterized in that the transport rollers ( 59 ) and the breakthroughs ( 61 ) are arranged in a square grid. Device according to one of claims 35 to 37, characterized in that the lifting and rotating table ( 57 ) via a lifting and turning gear ( 58 ) with a stepper motor ( 63 ) connected is. Device according to one of Claims 32 to 38, characterized in that immediately before the second transverse cutting-welding device ( 60 ) is provided a pair of endless belts or sets of rollers which rotate drivable transversely to the transport direction and run apart from each other separable. Device according to one of Claims 32 to 38, characterized in that immediately before the second transverse cutting-welding device ( 60 ) is arranged a pair of below the transport plane T separable from each other running roles with transverse to the transport direction axes, of which at least one is drivable. Device according to claim 40, characterized in that immediately before the second transverse cutting-welding device ( 60 ) is provided a height-adjustable low pressure bar for introducing a welded-over projection between the separate rollers. Device according to one of claims 32 to 41, characterized in that in the transport direction directly behind the first cross-cutting welding device ( 28 ) a horizontal vertically movable pressure plate (vent plate 29 ) is provided above the film webs. Device according to one of claims 32 to 42, characterized in that in each case in the transverse direction within the at least one longitudinal separation welding device ( 24 . 25 ) are arranged movable means for perforating at least the upper film layer, which in particular with an upper movable cross-beam of the first cross-cutting device ( 28 ) are firmly connected. Device according to one of claims 32 to 43, characterized in that the rollers of an outfeed roller track ( 56 ) behind the second cross-cutting device ( 60 ) are gummed for effectively stopping the film bag.