DE102017202759B3 - Film-wrapping machine - Google Patents

Abstract

The invention relates to a film wrapping machine (1) on each of which a horizontal X-axis, a horizontal Y-axis and a vertical Z-axis are defined, comprising a passage (2) with conveying means (3) for moving a packaged object Packaged good (4) through the passage (2) along the X-axis, an upper roller receptacle (8) above the passage (2) for receiving an upper film roll (9), along the Z-axis movable upper movement unit (11) with a clamping device (16) for guiding and optionally clamping the film of the upper film roll (9), a lower roll receptacle (12) below the passage (2) for receiving a lower film roll (13), a Z-axis movable lower movement unit (16) 15) with a clamping device (16) for performing and optionally clamping the lower film on the lower movement unit (15), and a connecting device (17) on the upper or lower movement unit (11,15) for Ver binding the upper and lower foils to form a film curtain extending through the passage (2), the clamping device (16) of the lower movement unit (15) along with the lower roll receptacle (12) along the Y axis to a film change position adjacent the passage (2) are movable.

Description

The invention relates to a film wrapping machine for packaging a packaged good.

Film wrapping machines discussed herein typically include a passage with a conveyor. About the conveyor the packaged goods to be packaged is moved through the passage. Above and below the passage is a film roll. The two ends of the foils are joined together, for example welded, and thus form a film curtain extending through the passage. By means of the conveyor, the packaged goods moves through this film curtain, whereby the film of the upper film roll lays on the packaged goods and the film of the lower film under the packaged goods. Furthermore, corresponding devices for separating the films from the film rolls and for reconnecting the ends of the films are provided. Previously known film wrapping machines often have to stand still for changing the film rolls, since appropriate maintenance or refitting work can only be carried out inside the passage.

It is an object of the invention to provide a film wrapping machine, in which a replacement of the film rolls and / or a conversion to other film rolls as simple and fast as possible and safe for the staff is possible.

The solution of this object is achieved by the features of the independent claims. The dependent claims relate to advantageous embodiments of the invention.

Thus, the problem is solved by a film wrapping machine. On the film wrapping machine, an X-axis, Y-axis and Z-axis are defined. The three axes are each perpendicular to each other. The X-axis and the Y-axis are aligned horizontally. The Z-axis is perpendicular to the ground.

The film wrapping machine has a passage. Through the passage leads a conveyor. The conveyor is designed for moving a packaged goods to be packaged through the passage along the X-axis. The conveyor is, for example, a conveyor belt or a corresponding support with a slide in order to push the packaged goods over the support.

In the context of the present invention, the packaging of packaged goods is described with "films". The "films" may in particular be plastic films, composite material, paper webs, or fabrics made of plastic or a natural substance.

Above the passage an upper roller mount is arranged. The upper roller receptacle serves to receive an upper film roll. In particular, the upper film roll can be arranged with its axis of rotation parallel to the Y axis in the upper roll receptacle. Furthermore, an upper movement unit is provided. The upper movement unit can be moved along the Z axis. The upper movement unit comprises a clamping device. The top sheet can be inserted into the clamp. The clamping device can optionally clamp or release the upper foil. In the clamped state, the film can be rolled down by moving the upper moving device along the Z-axis. In the released state, the upper film is freely carried out by the clamping device and thus by the upper movement unit and can be pulled through the upper movement device.

Under the passage, a lower roller receptacle is arranged. The lower roller receptacle serves to receive a lower film roll. In particular, the lower film roll can be arranged with its axis of rotation parallel to the Y axis in the lower roll receptacle. Furthermore, a lower movement unit is provided. The lower movement unit can be moved along the Z axis. The lower movement unit also comprises a clamping device. The lower foil can be inserted into this clamping device. The clamping device can selectively clamp or release the lower foil. In the clamped state, the film can be rolled up by moving the lower movement device along the Z-axis. In the released state, the lower film is freely feasible by the clamping device and thus by the lower movement unit and can be pulled through the lower movement device.

At the lower or at the upper movement unit is a connecting device. The connecting device is designed in particular for the material-locking connection of the films. Preferably, the connecting device is designed for welding the foils.

When starting the film wrapping machine, the upper film is clamped in the clamping device of the upper movement unit. The lower foil is clamped in the clamping device of the lower movement unit. Then the two movement units move along the Z-axis towards each other until the ends of the two films touch, in particular overlap. By means of the connecting device, the two ends are connected together. The clamping devices are opened again and the two movement units move apart along the Z-axis. This creates a foil curtain that extends through the passage. The film curtain extends in particular in the plane spanned by the Z-axis and Y-axis.

The packaged goods travel along the X-axis through this film curtain. The clamping devices of the upper and lower movement unit are open, so that the moving packaged goods pulls on the film curtain and thus at the ends of both films and unwinds them. As a result, the upper film lays over the packaged goods. The lower film lays under the packaged goods. At the rear of the packaged goods, the two movement units move toward each other again, the connecting device connects the two films and a separating device separates the portions of the films enclosing the packaged goods. The foil packaging is still open at the side of the packaged goods. On these pages, the film packaging can still be taken in a downstream device and preferably welded or glued.

According to the invention, it is provided that the clamping device of the lower movement unit can be moved together with the lower roller receptacle along the Y axis into a film changing position. This film change position is located next to the passage with respect to the Y-axis. The clamping device of the lower movement unit and the lower roller mount are thus movable along the Y-axis and can thereby be positioned in the film change position next to the passage. In particular, the clamping device of the lower movement unit and the roller receptacle are arranged linearly movable and can thus be moved parallel to the Y-axis in the film changing position.

In the film change position, which is located outside the passage, a new film roll can be inserted into the film holder. Furthermore, it is possible due to the arrangement according to the invention to thread or insert the new film into the clamping device of the lower movement unit in the film changing position and thus outside the passage. The operator no longer has to climb inside the passage to replace the lower film roll and connect to the lower movement unit. The film wrapping machine can thus remain in operation during this process. For this purpose, the packaged goods, for example, through the passage of a film wrapping machine, without being packaged, are moved through, the packaging then takes place in a downstream second film wrapping machine.

Particularly preferably, it is provided that the entire lower movement unit can be moved together with the lower roller receptacle along the Y-axis in the film changing position. Thus, not only the clamping device of the lower moving unit but the entire lower moving unit is preferably moved out along the Y-axis.

The connection device described is preferably part of the lower movement unit. As described, preferably, the entire lower movement unit is movable outward along the Y-axis. Thus, not only the clamping device but also simultaneously the connecting device can be moved outwards. This has the advantage that the clamping device and the connecting device need not be separated from each other. At the same time it is also possible to check the connection device outside the passage, namely in the described film change position, and to wait if necessary.

Particularly preferably, the lower movement unit also comprises the separation device. By means of the separating device, the film contents enclosing the packaged goods can be separated from the film curtain. Preferably, the separating device is also designed to separate the film curtain between the two movement units, so that the film curtain can be opened. As a result, the film wrapping machine can be set to an inactive state and it is possible to transport the packaged goods through the passage of a film wrapping machine to a downstream further film wrapping machine.

Since preferably the entire lower movement unit can be moved into the film changing position, thus also the separating device is moved to the film changing position. This makes it possible to check the separator outside the passage and to wait if necessary.

Particularly preferably, at least one linear guide device is provided. At this linear guide device, the clamping device, preferably the entire lower movement unit, and the lower roller support along the Y-axis are mounted linearly movable. The storage takes place with respect to a frame of the film wrapping machine and / or to the ground. For the linear guide relative to the frame in particular roller or slide-mounted rails are provided. For the linear guide relative to the floor, in particular corresponding rollers are provided.

Particularly preferably, the lower roller receptacle and the lower movement device are arranged in one or more drawers. This at least one drawer is guided by means of the at least one linear guide device relative to the frame and / or the floor.

Particularly preferably, the drawer comprises two opposing cheeks. The two cheeks can be moved together with the entire drawer along the Y-axis in the film change position. On the two cheeks, the two opposite ends of the lower movement unit are attached.

In particular, the two opposite ends of the lower movement unit are arranged on these two cheeks with respect to the Z-axis linearly movable. Between at least one end of the lower movement unit and the adjacent cheek is preferably arranged a movement device which is designed for pneumatic, hydraulic or electromechanical movement of the lower movement unit along the Z-axis.

Above the passage is preferably a walk-in pedestal. For example, the pedestal is accessible via a staircase or a ladder. The upper roller holder is arranged so that the film roll can be inserted into the upper roller holder via this pedestal. For this purpose, the upper roller seat is either above the pedestal or is embedded in the pedestal. The upper movement unit is preferably movable along the Z axis up to an upper film change position. In this upper film changing position, the operating personnel from the pedestal from the slide of the upper film roll in the clamping device of the upper movement unit thread or insert.

As already described, the lower movement unit is preferably moved pneumatically, hydraulically or electromechanically along the Z-axis. The same applies to the upper movement unit.

The two clamping devices of the two movement units are preferably also pneumatically, hydraulically or electromechanically actuated and can thereby be selectively switched to the clamping state and release state.

The film wrapping machine presented here is particularly suitable for relatively large packaged goods. Thus, it is preferably provided that the width of the passage and, correspondingly, the width of the movement units (measured parallel to the Y-axis) are designed for film widths of at least 50 cm, preferably at least 75 cm.

The invention further comprises an arrangement of at least two of the film wrapping machines described. The two film wrapping machines are arranged one behind the other and have a common passage. With the conveyor, the packaged goods through the common passage and thus by both film wrapping machines along the X-axis is movable. The arrangement of the at least two film wrapping machines can be operated continuously, since due to the inventive arrangement, the lower film roll can be changed outside the passage and used in the clamping device of the lower movement unit. According to the preferred embodiment with the pedestal above the passage, the same is also possible for the upper film roll.

• 1 zwei in Reihe positionierte Folieneinschlagmaschinen gemäß einem Ausführungsbeispiel,
• 2 ein erstes Detail der Folieneinschlagmaschine gemäß dem Ausführungsbeispiel, und
• 3 ein zweites Detail der Folieneinschlagmaschine gemäß dem Ausführungsbeispiel.

Further details, advantages and features of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing. It shows:

• 1 two film-wrapping machines positioned in series according to one embodiment,
• 2 a first detail of the film wrapping machine according to the embodiment, and
• 3 a second detail of the film wrapping machine according to the embodiment.

The following is based on the 1 to 3 a film wrapping machine 1 or an arrangement of two film wrapping machines 1 explained in detail.

1 shows two of the film wrapping machines 1 for packaging of packaged goods 4 with slides. At the film wrapping machines 1 are each perpendicular to each other an X-axis, defined in the Y-axis and a Z-axis. The Y-axis and X-axis are horizontal and thus parallel to the ground. The Z-axis is perpendicular to the ground.

The single foil wrapping machine 1 has a frame 5 on. Through the frame 5 A passage extends along the X axis 2 , In the passage 2 is a conveyor 3 arranged. The conveyor 3 can be configured for example as a conveyor belt. As an alternative to the conveyor belt, the conveyor 3 For example, also have a variety of roles over which the packaged goods 4 is pushed.

1 shows two successively arranged film wrapping machines 1 with a common passage 2 and a common Conveyor 3 , Instead of the common conveyor 3 It is also possible to arrange several conveyors one behind the other along the X-axis. It is crucial that the packaged goods 4 through both film wrapping machines 1 be conveyed through, so that the packaged goods 4 optionally with one or the other film wrapping machine 1 can be packed.

On the non-active film wrapping machine 1 appropriate maintenance or retooling can be made.

On the top of the frame 5 is a pedestal 6 educated. The pedestal 6 is over a staircase 7 walkable.

The foil wrapping machine 1 has an upper movement unit 11 on. The upper movement unit 11 is along the Z-axis through the passage 2 traversable. On the pedestal 6 there is an upper roller holder 8th for receiving an upper film roll 9 , In the pedestal 6 is an upper opening 10 intended. Through this upper opening 10 can the movement unit 11 up to the level of the podium 6 be moved and is therefore easily accessible. Furthermore, the film of the upper roll 9 through the upper opening 10 into the passage 2 be guided.

Furthermore, the film wrapping machine has a lower movement unit 15 on. The lower movement unit 15 is along the Z-axis through the passage 2 traversable. In the conveyor 3 is a lower opening 14 provided so that the lower movement unit 15 to below the conveyor 3 is movable.

Under the conveyor 3 there is a lower roller holder 12 for receiving a lower film roll 13 , The foil of the lower foil roll 13 can through the lower opening 14 into the passage 2 be guided.

For the sake of clarity, an attachment of the lower movement unit 15 in 1 hidden. This is however in 3 shown in detail.

2 shows the upper movement unit 11 and the upper roll holder 8th , The upper movement unit 11 includes a clamping device 16 , The foil of the upper foil roll 9 is through this clamping device 16 passed. The clamping device 16 is hydraulically, pneumatically or electromechanically actuated and can thereby selectively clamp or release the film.

3 shows in detail the lower movement unit 15 and the lower roller intake 12 in a foil change position laterally next to the passage 2 , The lower movement unit 15 also includes a clamping device 16 , The foil of the lower foil roll 13 is through this clamping guide 16 passed. The clamping device 16 is hydraulically, pneumatically or electromechanically actuated and can thereby selectively clamp or release the film. In addition, the lower movement unit includes 15 a connection device 17 for welding the upper and the lower foil and a separating device 18 for cutting the slides.

At startup of the film wrapping machine 1 the upper foil is in the clamping device 16 the upper movement unit 11 clamped. The lower foil is in the clamping device 16 the lower movement unit 15 clamped. Then the two movement units go 11 . 15 along the Z-axis towards each other until the ends of the two films touch, in particular overlap. By means of the connecting device 17 the two ends are connected together. The clamping devices 16 are reopened and the two movement units 11 . 15 drive apart along the Z axis. This creates a foil curtain that extends through the passageway 2 extends. The film curtain extends in the plane defined by the Z-axis and Y-axis plane.

The packaged goods 4 moves along the X-axis through this film curtain. Here are the clamping devices 16 the upper and lower movement units 11 . 15 open, so that the moving packaged goods 4 pulls on the film curtain and thus at the ends of both films and unwinds them. As a result, the upper film lays over the packaged goods 4 , The lower film lays under the packaged goods 4 , At the back of the packaged goods 4 drive the two movement units 11 . 15 towards each other again, the connecting device 17 connects the two films and the separator 16 separates the packaged goods 4 enclosing portions of the films.

As 3 clarifies are the entire lower movement unit 15 and the lower roller intake 12 along the Y-axis from the area under the passage 2 moved to the outside in a film change position. For this purpose, there are the lower movement unit 15 and the lower roller intake 12 on a drawer 19 , The drawer 19 is with linear guide devices 20 on the frame 5 or stored opposite the ground. The linear guide device 20 thus includes a roller storage of the drawer 19 opposite the frame 5 and several roles 21 to support the drawer 19 opposite the ground.

The drawer 19 has two opposite cheeks 22 on. On those cheeks 22 is the lower movement unit 12 attached. On one of the cheeks 22 is a movement device 23 provided, which is the lower movement unit 15 , For example, pneumatically, along the Z-axis moves. With the drawer 19 is thus the lower movement unit 15 including her attachment to the cheeks 22 and with her movement device 23 moved to the outside.

In the in 3 shown film change position, the film of the lower roll holder 12 be replaced easily. Furthermore, in this position, an insertion of the new film in the clamping device 16 the lower movement unit 15 possible. During this process, the packaged goods can 4 continue through the passage 2 the front film wrapping machine 1 be moved through and in the second film wrapping machine 1 (please refer 1 ).

In addition to the above written description of the invention, reference is additionally made to the drawings of the invention in all figures to the additional disclosure thereof.

LIST OF REFERENCE NUMBERS

1

Film-wrapping machine

2

passage

3

Conveyor

4

packaged goods

5

frame

6

podium

7

stairway

8th

Upper roller intake

9

upper film roll

10

upper opening

11

upper movement unit

12

lower roller intake

13

lower film roll

14

lower opening

15

lower movement unit

16

clamping device

17

connecting device

18

separating device

19

drawer

20

Linear guide device

21

roll

22

Sidewall

23

mover

Claims (10)

Film wrapping machine (1), on each of which a horizontal X-axis, a horizontal Y-axis and a vertical Z-axis are defined perpendicular to each other, comprising A passage (2) with a conveyor (3) for moving a packaged item (4) to be packaged through the passage (2) along the X-axis, An upper roller receptacle (8) above the passage (2) for receiving an upper film roll (9), A movable along the Z-axis upper movement unit (11) with a clamping device (16) for performing and optionally clamping the film of the upper film roll (9), A lower roller receptacle (12) under the passage (2) for receiving a lower film roll (13), • a movable along the Z-axis lower movement unit (15) with a clamping device (16) for performing and optionally clamp the lower film to the lower movement unit (15), and A connecting device (17) on the upper or lower moving unit (11, 15) for connecting the upper and lower foils to form a film curtain extending through the passage (2), • wherein the clamping device (16) of the lower movement unit (15) together with the lower roller receptacle (12) along the Y-axis in a film change position next to the passage (2) are movable. Film wrapping machine after Claim 1 in that the entire lower movement unit (15) together with the lower roller mount (12) along the Y-axis in the film change position adjacent to the passage (2) is movable. Film wrapping machine according to one of the preceding claims, wherein the connecting device (17) on the lower movement unit (15) is arranged. Film wrapping machine according to one of the preceding claims, wherein the lower movement unit (15) comprises a separating device (18) for separating the films. Film wrapping machine according to one of the preceding claims, comprising at least one linear guide device (20) for relative to the Y-axis linearly movable mounting of the clamping device (16), preferably the entire lower movement unit (15), and the lower Roller receptacle (12) relative to a frame (5) of the film wrapping machine (1) and / or with respect to the ground. Film wrapping machine according to one of the preceding claims, comprising a walk-on pedestal (6) above the passage (2), wherein the upper roller receptacle (8) for changing the upper film roll (9) on the pedestal (6) is accessible and wherein the clamping device (16 ) of the upper movement unit (11) in a film changing position on the pedestal (6) for inserting the film in the clamping device (16) is accessible. Film wrapping machine according to one of the preceding claims, wherein the width of the passage (2) and the two movement units (11,15) for film widths of at least 50 cm, preferably at least 75 cm, are formed. Film wrapping machine according to one of the preceding claims, wherein the movement units (11,15) are pneumatically, hydraulically or electromechanically movable along the Z-axis. Film wrapping machine according to one of the preceding claims, wherein the clamping devices (16) of the two movement units (11,15) are pneumatically, hydraulically or electromechanically actuated. Arrangement of at least two successively positioned film wrapping machines (1) according to one of the preceding claims with a common passage (2) with a conveyor (3) for moving the packaged goods (4) to be packaged by the at least two film wrapping machines (1) along the X-axis ,

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