DE202015102421U1 - Device for transporting films - Google Patents

Abstract

Device for transporting films, comprising - a storage space (10) for receiving a film stack (2) from a plurality of films (1), - a laying area (12) for depositing a film (1) from the film stack (2), - a first suction strip (3) with a drive for lifting a film (1) from the film stack (2) by means of suckers (5) and - a second suction strip (6) with a drive for transporting a film (1) in the transport direction (9) to the laying area (12), - suckers (5, 8) for fixing the film (1) to the suction strips (3, 6) and - an intermediate table (13) between storage space (10) and laying area (12), characterized in that - the first suction strip (3) is suitable for lifting the film (1) from the film stack (2) essentially in a predetermined region (17) on the edge facing in the transport direction (9); - the intermediate table (13) with a drive is suitable for lifting the film Slide under film (1) at least in the area (17), - the second suction strip (6) is suitable di e foil (1) substantially in this area (17) to take, to the laying area (12) to transport and store there.

Description

The invention relates to a device for transporting foils according to the preamble of claim 1.

Devices and methods for transporting films from a stack to a laying area are known, in particular in connection with the lamination of material plates with this film in a laminating press. Films in this context mean flat paper, laminating material or the like which is suitable for being applied to a carrier material. The support material may in this case also be a film or other similar thin materials or rigid materials such. B. material plates.

In the course of this, for an automated device, like out DE 203 20 325 U1 is known, a film stack provided on a pallet, of which is pre-separated with a first squeegee, the top sheet on the side opposite to the transport direction. Subsequently, the film is then picked up by a second movable squeegee on the opposite side (in the transport direction) and removed from the stack and transported in the transport direction to a laying area. Once there, the film is deposited on a substrate, preferably a carrier plates. In this disclosure, an intermediate table is provided which bridges the area between the film stack and the lay-up, so that the film can be transported without damage, even at lower speeds.

Although appropriate at the time, requirements for today's applications require processes and devices that are flexible enough to respond to different degrees of stiffness of the films and are also able to separate the stack at high speed and the films safely in the laying area and drop it off exactly.

In particular, it has proved to be disadvantageous in the prior art that the film is isolated on one side, but on the other hand, when receiving the film, the film is pressed onto the film stack at the beginning of the recording process. It is also disadvantageous that the air is directed to underblowing in the direction of the laying area and thus leads to contamination of the laying area or of the substrates lying there.

The invention has for its object to provide a device with which it is possible to respond to different types of films and to enable the fastest possible timing, which allow the properties of the film. In particular, the previous disadvantages are to be improved and improved film drawing made possible.

• – einen Lagerplatz zur Aufnahme eines Folienstapels aus einer Vielzahl an Folien,
• – eine Legeplatz zur Ablage einer Folie von dem Folienstapel,
• – eine erste Saugleiste mit einem Antrieb zum Anheben einer Folie vom Folienstapel mittels Saugern und
• – eine zweite Saugleiste mit einem Antrieb zum Transport einer Folie in Transportrichtung zum Legeplatz,
• – Sauger zur Fixierung der Folie an den Saugleisten und
• – ein Zwischentisch zwischen Lagerplatz und Legeplatz,

The device for transporting foils comprises:

• A storage space for receiving a film stack from a plurality of films,
• A place to lay a film from the film stack,
• - A first squeegee with a drive for lifting a film from the film stack using suction cups and
• A second squeegee with a drive for transporting a film in the direction of transport to the place of laying,
• - Sucker for fixing the film to the squeegee and
• - an intermediate table between storage area and laying area,

• – die erste Saugleiste geeignet ist die Folie im Wesentlichen in einem vorgegebenen Bereich an der in Transportrichtung weisenden Kante vom Folienstapel abzuheben,
• – der Zwischentisch mit einem Antrieb geeignet ist die angehobene Folie zumindest im Bereich zu unterfahren,
• – die zweite Saugleiste geeignet ist die Folie im Wesentlichen in diesem Bereich aufzunehmen, zum Legeplatz zu transportieren und dort abzulegen.

The solution of the problem for the device is achieved in that

• The first squeegee is suitable for lifting the film from the film stack essentially in a predetermined area at the edge pointing in the direction of transport,
• The intermediate table with a drive is suitable for driving under the raised foil at least in the region,
• - The second squeegee is suitable to receive the film essentially in this area, to transport to the place of laying and store there.

The device is now suitable for lifting and transporting the films in different ways, in particular gently for the films but at the same time at a fast cycle rate. During the positioning and storage of the first film with a second squeegee, the next film is lifted from the first squeegee from the film stack and a third foil possibly attached to the second film is given the opportunity to separate from the second film. This can be done with the support of vibrations or by blowing on the edges. If it is ensured, usually through the passage of time, that no further film adheres to the second film, it can be underblown, so that it does not displace the next film from the film stack when the transport is started by the second squeegee.

In particular, compared with the prior art, the present invention offers the following advantages:
The film is lifted on the side on which it is also taken. The raised film receives no more contact with the film stack after lifting, but is placed on demand on the sliding intermediate table and there to hand over. There is thus no risk of renewed adhesive contact between the film and the film stack.

The direction of the air flow for underblowing the film is arranged in an advantageous manner facing away from the Legetisch. No pollution is distributed in this direction.

The direction of the air flow against the transport direction of the film can be used to establish an air cushion at the beginning of the transport, which serves for a gentle transport and at the same time for cleaning the bottom of the film.

In a preferred embodiment, it is no longer blown from the outside onto the separating gap between the film and the film stack, which has sometimes led to the film stack uncontrollably fanning out. But by the retraction of the blow bar and / or through the air line of the blown air through the intermediate table is an optimal use of the blowing air to separate the film from the film stack. By the improved utilization of the blown air this can be reduced compared to conventional methods and devices.

Furthermore, an adaptation of the device to different film sizes is no longer necessary because it is lifted on the side of the film on which the second suction strip engages and the film stack can be centered there. Thus, the structure of the device can be made simpler overall, since the pointing in the direction of transport side of the film stack is always placed at the same position.

Advantageously, a variety of possible variants of the transport process are now necessary, which can be selected depending on the time available and the material properties of the film.

Advantageously, the first squeegee can only lift and hold the foil until the second squeegee comes back from depositing the previous foil on the lay. In a kind of flying change, the second squeegee can take over the film from the first squeegee in the off-hook condition in which it sucks the film and then the first batten the film releases. Of course, this requires a certain rigidity of the existing film.

After the film has been lifted off and "allowed to drip off", more sensitive films can be deposited on the intermediate table, which may be in the raised area. The area near the edge of the film is now sufficiently supported and the returning second squeegee can easily pick up and transport the film from the intermediate table there. As soon as the end of the film being transported is out of the way, the first squeegee can begin to lift the next film. Preferably, moreover, the film can be held on the intermediate table by means of vacuum or manual clamps, so that the first squeegee can move out of the way.

In particular, however, it is provided for the flying transfer or for the transfer to the intermediate table, that the squeegee or the arrangement of the sucker on the squeegee is designed so that they are arranged to mesh with each other. This is particularly advantageous in the case of a flying takeover of the film. For this purpose, it is particularly preferably provided that the suckers are attached to the suction bars by means of spaced profiles, wherein the profiles of the two suction bars are arranged in meshing relation to each other.

Alternatively or in combination, it may be provided that means for the film, preferably vacuum surfaces, are arranged on the intermediate table. Depending on their needs, these can be switched with regard to their activity and their strength can be regulated.

Alternatively or in combination, it may be provided that a blow bar is arranged for underblowing the film lifted by the first suction strip. This can preferably be arranged on the intermediate table. Alternatively or in combination it can be provided that is movably arranged to the intermediate table respectively movable with the Zwiscentisch.

Preferably, the blowing strip is formed separately and underpins the film. The retracted intermediate table can serve as an air guide and ensure optimum introduction of the blowing air between the film and the film stack. The intermediate table can also be integrated in the blow bar or vice versa, as shown in the embodiment. It is preferably provided that a blow bar, an intermediate table formed as a blow bar, an intermediate table and / or an intermediate table with a blow bar between raised foil and film stack enters and provides for the "mechanical and / or pneumatic separation".

Alternatively or in combination it can be provided that the suckers are operatively connected to a pneumatic vacuum device and the blow bar with a pneumatic pressure device.

In the sense of "driving under", it is not absolutely necessary that the intermediate table underlies the film touching or supportive. Rather, it is provided that the film is then stored, in a non-flying transfer, from the first squeegee on the intermediate table. An arranged on the intermediate table or stand-alone blow bar can then inflate the film. Preferably, the blow bar will be arranged cooperatively with the intermediate table, in particular preferably in one piece. Alternatively or in combination, the intermediate table can direct the flow of air from the blow bar.

Preferably, the first squeegee starts with the lifting of the next film from the film stack when the opposite of the transport direction edge of the first film has left the film stack. Alternatively or in combination, the first squeegee may transfer the film to the second squeegee. Preferably, it may additionally be provided that the second suction strip takes over the film from the first suction strip and / or from the intermediate table. Alternatively or in combination, the two suction strips or the suction pads, which are preferably arranged on spaced profiles, can mesh during the transfer of the film. Alternatively or in combination, the film may be held on the intermediate table, preferably under reduced pressure, the first suction strip and / or by mechanical means. Alternatively or in combination, the film can be blown after being lifted from the film stack by means of a blow bar, preferably with a blow bar, more preferably with a movable and / or arranged on the intermediate table blowing bar. Alternatively or in combination, the intermediate table can be moved in height, preferably for producing the contact with the film held on the first suction strip.

Further advantageous and expedient embodiments of the invention are described below with reference to the drawing and specified in the dependent claims.

Show it:

1 a schematic side view of the device in the transport direction of the films from the film stack left to right to a berth,

2 a plan view of the device according to 1 and

3 a sectional view X2-X2 after 1 the optional meshing squeegee.

1 shows a schematic side view of the device with the transport direction 9 the slides 1 from the film pile 2 left to right to a berth 12 , On the place of laying is usually a transport device, here a movable Legetisch 11 , Provided on the example, a substrate, here a material plate 16 , is ready, so that the film to be transported 1 can be stored here. The deposition is usually oriented and is with appropriate designs of Legetisches 11 and / or the squeegee 3 / 6 performed, these are not further explained here.

Alternatively, to the laying table shown here, a conveyor belt may be provided, is placed on the directly or on a arranged there substrate (material plate).

The second squeegee 6 , mainly responsible for the transport of the film 1 , is at a traverse 15 be movably arranged by means of a suitable drive. The first squeegee 3 can also use this traverse 15 or a separate portal be arranged movable. For the movements along the arrows on both squeegees 3 . 6 and the sub-table 13 are also suitable but not further illustrated drives provided. Instead of a traverse shown 15 Other suitable means are conceivable, which are the suction bars 3 . 6 to lead respectively to drive.

Advantageously, the device is now capable of producing films in a high frequency 1 from the film pile 2 to separate and transport. The new device allows the film separation (lifting and, if necessary, draining another film) simultaneously with the transport of a film 1 on the berth 12 , The first raisable and lowerable squeegee sets 3 near the foil pile edge in one area 17 on, in the direction of transport 9 points, sucks the top sheet 1 and lifts them from the film pile 2 from. After the dripping time, which is given according to stickiness and other conditions, a sub-table goes under 13 the foil 1 and / or the squeegee pulls the film 1 in the transport direction 9 so far that these are in the range 17 on the sub-table 13 to come to rest. This can be before, during or subsequently be underblown, preferably with a stand-alone or at the intermediate table 13 attached blower 14 , This is a full-surface solution of the film 1 from the film pile 2 , Preference is then during underblowing the film 1 from the first squeegee 3 on the sub-table 13 filed, preferably over the film stack 2 is arranged. The first squeegee 3 preferably holds during the blowing process or until the second squeegee 6 the foil 1 fixed the slide 1 firmly. After the underblowing time or assisting on an air carpet by underblowing pulls the second squeegee 6 the film in the transport direction 9 from. Once the slide 1 the area of the first squeegee 3 and thus the film pile 2 left, can the first squeegee 3 start with the next cycle.

In 2 can be seen from the top view that the area 17 in the transport direction of the film 1 respectively of the film stack 2 is provided, which is substantially at the edge of the film 1 you can find that of the film 1 in the transport direction 9 is ahead. Here are preferably the suckers 5 the first squeegee 3 attack. Due to the drawn section line X2-X2 in 1 but is in the area 17 not the sucker 5 to see for yourself, but the profile visible from above 4 that between the sucker 5 and the squeegee 3 is arranged. The squeegee 5 is located after 1 essentially at the height of the intermediate table 13 , To better enable the meshing effect, the profiles are the squeegee 6 not in the vertical, but obliquely arranged. In a flying takeover, the squeegee 6 , respectively the profiles 7 with the suckers arranged on it 8th next to the suckers 5 the first squeegee in the area 17 tackle, or the suckers 5 . 8th combing with the aid of the spaced-apart profiles 4 . 7 ,

Has the second squeegee 6 the foil 1 from the first squeegee 3 or from the side table 13 taken over, the film is in the direction of berth 12 transported and on the material plate 16 , respectively a means of transport, positioned and stored. Between the berth 12 and the film pile 2 a means for underblowing the lifted foil can be arranged, in particular this can be in the intermediate table 13 be integrated. This blow bar would be particularly preferred 13 in the middle table 13 movably and / or pivotably arranged around the blowing effect the circumstances, particularly preferably a shrinking foil stack 2 to live up to it.

In a 3 you can see in one view the extension of the blow bar 3 across the drawing plane. For a meshing embodiment are on the squeegee 3 spaced profiles 4 arranged at the end of the suckers 5 for receiving the film 1 are arranged. The squeegee behind it 6 is only partially drawn, in particular, the meshing machine elements, the profiles 7 with the suckers 8th shown.

Particularly preferred find two identical running Saugleisten 3 . 6 Use that are offset from each other and so can comb.

LIST OF REFERENCE NUMBERS

1

foil

2

film stack

3

Squeegee (first)

4

Profile (first)

5

sucker

6

Suction strip (second)

7

Profile (second)

8th

sucker

9

transport direction

10

Storage bin of 2

11

Legetisch

12

berth

13

intermediate table

14

blowing strip

15

traverse

16

Material board

17

Area

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 20320325 U1 [0003]

Claims (8)

Device for transporting films comprising - a storage space ( 10 ) for receiving a film stack ( 2 ) from a large number of films ( 1 ), - a berth ( 12 ) for storing a film ( 1 ) from the film stack ( 2 ), - a first squeegee ( 3 ) with a drive for lifting a film ( 1 ) from the film stack ( 2 ) by means of suckers ( 5 ) and - a second squeegee ( 6 ) with a drive for transporting a film ( 1 ) in the transport direction ( 9 ) to the place of laying ( 12 ), - Sucker ( 5 . 8th ) for fixing the film ( 1 ) on the suction strips ( 3 . 6 ) and - an intermediate table ( 13 ) between storage bin ( 10 ) and berth ( 12 ), characterized in that - the first squeegee ( 3 ) the film is suitable ( 1 ) substantially in a predetermined area ( 17 ) at the transport direction ( 9 ) facing edge of the film stack ( 2 ), - the intermediate table ( 13 ) with a drive is the raised foil ( 1 ) at least in the area ( 17 ), - the second squeegee ( 6 ) the film is suitable ( 1 ) essentially in this area ( 17 ), to the place of laying ( 12 ) to transport and store there. Device according to claim 1, characterized in that the first suction strip ( 3 ) the film is suitable ( 1 ) to the second squeegee ( 6 ) and / or on the intermediate table ( 13 ). Apparatus according to claim 1, characterized in that and / or that the second suction strip is suitable, the film ( 1 ) from the first squeegee ( 6 ) and / or from the intermediate table ( 13 ) and Device according to claim 1, characterized in that the suckers ( 5 . 8th ) on the suction strips ( 3 . 6 ) by means of spaced profiles ( 4 . 7 ), the profiles ( 4 . 7 ) of the two suction strips ( 3 . 6 ) are arranged in mesh with each other. Device according to claim 1, characterized in that at the intermediate table ( 13 ) Agent to the film ( 1 ), preferably negative pressure surfaces. Apparatus according to claim 1, characterized in that a blow bar ( 14 ) for underblowing of the first squeegee ( 3 ) raised foil ( 1 ), preferably at the intermediate table ( 13 ) and in particular preferably movable thereto. Device according to claim 1, characterized in that the suckers ( 5 . 8th ) with a pneumatic vacuum device and the blow bar ( 14 ) are operatively connected to a pneumatic pressure device. Device according to one or more of the preceding claims, characterized in that the intermediate table is arranged vertically adjustable.

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