DE202009012179U1 - Device for archiving and / or temporarily storing glass panes in clean rooms - Google Patents

Abstract

Device for archiving and / or intermediate storage of coated glass panes in clean rooms in rapid cycle sequence and large numbers,
with the following features:
a) a plurality of roller conveyors (5) for feeding glass sheets (4),
b) a plurality of roller conveyors (6) each combined with a transverse conveyor (12) in the form of a plurality of individually driven rollers
c) a number of devices (32) for aligning glass panes (4),
d) a plurality of container boxes (10) for the horizontal stacking of glass panes (4),
e) a number of loading stations (2) with a portal frame (11) with a lifting device for container boxes (10),
f) a number of portal-box converters (3) with a lifting device and telescopic forks (19) for the implementation of container boxes (10), wherein the portal-box converter (3) are movable,
g) a number of container shelves (1)

Description

The The invention relates to a device for archiving and / or intermediate storage of coated glass plates in clean rooms.

When coated glass plates can photovoltaic elements, TFT screens or other glass plates that underlie a coating Clean room conditions or clean room conditions must be considered become.

• a) einem Rollenförderer mit Rollen (2) und einem Antrieb (3)
• b) einer Ausrichteinheit mit einem Heberahmen (8) und einem auf diesem liegenden Ausrichtrahmen (5), wobei der Ausrichtrahmen (5) mit diesem drehbar gelenkig verbundene Querverstrebungen (4) mit Auflageelementen aufweist, die den Freiraum zwischen den Rollen (2) durchdringen, das Auflage-Niveau der Rollen (2) überragen und die Glasplatte (9) tragen,
• c) zwei Schiebeelementen, die von jeweils einzeln steuerbaren Antrieben (6) betätigt werden und jeweils sich in Drehgelenken (7) drehen

From the state of the art are on this subject from the DE 10 2007 052 027 B3 a method and a device for the contamination-free treatment shock-sensitive glass plates in clean rooms known. In this case, the method or the corresponding device based on the object to ensure in the alignment and positioning of large thin glass plates under clean room conditions a manufacturing process or a supply to a specific manufacturing process, controlled without the access of people, but of people outside of production and monitors, takes place. The corresponding device must be reliable in operation and inexpensive to manufacture. The movements of the glass plates must exclude unwanted vibrations. This object is achieved by a device or a corresponding method for kotaminationsfreien, exactly defined, horizontal alignment and positioning of thin, shock-sensitive glass plates under clean room conditions with the following features:

• a) a roller conveyor with rollers ( 2 ) and a drive ( 3 )
• b) an alignment unit with a lifting frame ( 8th ) and a lying on this alignment frame ( 5 ), the alignment frame ( 5 ) with this pivotally articulated cross braces ( 4 ) having support elements that the clearance between the rollers ( 2 ), the overlay level of the rolls ( 2 ) and the glass plate ( 9 ) wear,
• c) two sliding elements, each driven by individually controllable drives ( 6 ) and in each case in swivel joints ( 7 ) rotate

A Archiving of glass plates is with this known device not possible.

• a) Rollen mit jeweils eigenem Antrieb im Reinstraum zur Anlieferung von Glasplatten (11),
• b) einer Umsetzeinheit
• c) einer Umsetzgabel als Teil der Umsetzeinheit mit einem Querholm (6) und senkrecht hieran befestigten Saugkopfträger-Holmen (7), wobei die Holme (7) an ihrer Oberseite über ihre Länge verteilte Saugköpfe (8) aufweisen, die den Freiraum zwischen den Rollen durchdringen und jeweils ein Ansaugelement (15) und einen Strömungssensor (14) aufweisen,
• d) einem unteren Umlenkgetriebe (3) und einem mit diesem über eine Traverse verbundenen oberen Umlenkgetriebe (4), wobei das obere Umlenkgetriebe (4) mit der Umsetzgabel und das untere Umlenkgetriebe (3) über ein Befestigungselement (2) mit einer Befestigungsplatte (1) verbunden sind,
• e) einer Ablagevorrichtung (12) mit einer Vorrichtung zur Erfassung ihrer thermischen Verformung

In the DE 10 2007 052 182 B4 For example, an apparatus and method for reacting impact sensitive glass plates in clean rooms are described. This device, or this method has the object to ensure an extreme positioning accuracy in the implementation of large thin glass plates under clean-room conditions. This object is achieved by means of a device, or a method for the contamination-free transfer of thin, shock-sensitive plates, in particular glass plates ( 11 ), in clean rooms from a horizontal to a defined vertical position, with the following features:

• a) Rollers, each with its own drive in a clean room for the delivery of glass plates ( 11 )
• b) a conversion unit
• c) a transfer fork as part of the transfer unit with a cross member ( 6 ) and vertically attached thereto Saugkopfträger-Holmen ( 7 ), whereby the spars ( 7 ) on its upper side over its length distributed suction heads ( 8th ), which penetrate the space between the rollers and each have a suction element ( 15 ) and a flow sensor ( 14 ) exhibit,
• d) a lower deflection gear ( 3 ) and connected to this via a crossmember upper deflection gear ( 4 ), wherein the upper deflection gear ( 4 ) with the transfer fork and the lower deflection gear ( 3 ) via a fastening element ( 2 ) with a mounting plate ( 1 ) are connected,
• e) a storage device ( 12 ) with a device for detecting their thermal deformation

With Although this device can be a glass plate from a horizontal Location can be spent in a vertical position, however, is hereby a sorting or archiving of glass plates not possible.

Of the The device according to the invention is therefore the Task based, coated glass plates under clean room conditions stacking and archiving, the glass plates being gentle and secure, but still be stored in a confined space and high cycle times be achieved in the place,

These The object is achieved with a device according to claim 1.

The Device according to the invention is hereinafter described in more detail,

It show in detail:

1 : a spatial representation of the overall device according to the invention

2 : the overall device in top view

3 : a cross-section of the overall device

4 : a spatial representation of the portal of a loading station

5 : a spatial representation of a comb conveyor

6 : a spatial representation of a container

7 : a detailed drawing of a comb conveyor

When Coated glass sheets are used for the present device predominantly photovoltaic glass panes, correspondingly coated glass panes for TFT screens or for other purposes in clean rooms, or at higher requirements in clean rooms, coated glass panes understood. All these coating processes can only in clean rooms, or clean rooms be done because in normal rooms there is a risk that the fine structures of the deposited layers by smallest ones Particles are interrupted.

One Clean room, or a clean dream is a room in which the concentration airborne particles is regulated. He is so constructed and is used so that the number of people brought into the room or in the space resulting and deposited particles smallest possible is and other parameters such as temperature, humidity or air pressure be regulated as needed.

One Clean room, much more a clean dream, is because of the required technical equipment relatively expensive not only in the purchase, but also in operation. That's why they need the manufacturing process continuous and the finished coated glass panes on the one hand stored in a clean room and on the other hand after the Completion in a clean room for further processing controlled storage and archived.

Under Archiving is also understood to mean that the coated ones Glass panes not only according to the size of the glass pane or sort of the coating, but that they are also be sorted according to quality classes and targeted can be retrieved again. Because many coating processes supply production-related products of different qualities. Up to four quality classes have to be added be taken into account.

simultaneously is high in a large manufacturing plant to be processed on discs to be coated, or to archive. That is why each pane of glass carries an identifying one Bar code, so the computer controlling the entire production plant is exactly informed, at which point a certain disc is located.

The Archiving of the coated glass panes must therefore, because clean room expensive, done in a confined space. At the same time the clock rate needs the loading and unloading, or transhipment because of the high production volume be very high. Of course, the archiving the glass panes for the efficiency of the entire production line considered to be very reliable.

The 1 shows a spatial representation of the inventive device without reference numerals. In the foreground are exemplified two roller conveyors for the delivery of coated glass panes, which pass into roller conveyors with a combined cross conveyor. These special roller conveyors can be used for the distribution of glass panes in storage areas for appropriate quality classes. They consist of individually controllable rollers or belts which can be raised via a corresponding lifting mechanism on the level of the longitudinal conveyor.

Behind These special roller conveyors rise in each case two loading stations each with an empty container box. Behind the right loading station of the left group of loading stations is a portal box translator to detect with its diagonal running Roadway. Again behind this lane is a row with each four container shelves shown.

The 2 shows the in the 1 described overall device in plan view. Here are the two-part container shelves in the upper part of the picture 1 to recognize. Before that, the road runs across 7 for a portal box translator 3 , Furthermore, in the figure description of 1 described loading stations 2 opposite, with a cross conveyor 12 combined roller conveyors 6 shown in cross section. A cross conveyor 12 consists of several, individually driven transverse rollers. On the two roller conveyors 6 are each 2 pairs of glass panes 4 demonstrated. These can be, for example, solar modules.

For aligning the glass panes 4 are in this area of roller conveyors 6 devices 32 for aligning these glass panes 4 intended. These are used to make sure that the glass panes 4 exactly aligned with the longitudinal axis of a container box 10 from the roller conveyor 6 to get promoted. The reference line used here is the longitudinal axis of the relevant container box 10 , where the position of the longitudinal sides of the glass panes 4 about edge detectors 21 as they are in the 4 at the container box 10 shown are determined. The correction of the position of a glass pane 4 is then computer controlled via appropriate pulses for the selective drive of longitudinal rollers and / or transverse roles.

The two lines shown, between the carriageway 7 and the loading stations 2 attached safety devices 8th are formed in the manner of a curtain of laser beams and make sure that no glass in the roadway 7 protrudes.

The 3 shows a cross section of the entire device at the site of the portal box converter 3 in the 2 , On the left side again is the corresponding container shelf 1 to recognize the the portal box translator 3 in the form of the portal frame 18 on his carriageway 7 is upstream. In the lateral view here is the lifting drive 20 the portal box converter 3 to recognize. Furthermore, in this view, a telescopic fork 19 the box converter 3 shown.

These telescopic forks 19 can be arranged side by side (cf. 6 , Pit foot 29 ), on both sides of a portal box converter 3 extended and / or retracted and under a container box 10 be pushed. They thus serve the transport of container boxes 10 from the side of the roller conveyor 5 to the container shelf 1 and vice versa. Such a telescopic fork 19 is constructed according to the known type of pull-out drawer, wherein the telescopic pushing can be done to both sides. The two telescopic forks 19 support the respective container box 10 in the middle between the two pit feet 29 (see. 6 ). That means in the case of 6 that the left telescopic fork 19 gliding past the right-hand side of the left-hand stance and at the same time the right-hand telescopic fork 19 pushes past the left side of the right-hand pit foot. Thus a container box 10 safe on the two telescopic forks 19 rests on the two points of contact between the respective telescopic fork 19 and the respective pit foot 29 a remotely releasable mechanical connection installed, which automatically engages when advancing the telescopic forks. For reasons of a clear presentation, this was not drawn out.

It can also be provided, both in the lock, as well as their solution, instead of a mechanical latching produce an electromagnetic connection controllable. This measure ensures that the container boxes 10 No danger at high speed from a portal box converter 3 can be transported.

Following to the right is the safety device 8th the loading station concerned 2 in the form of the portal frame 11 opposite. On top of the portal frame 11 are also the drive in this side view 9 for the lifting device of the loading station 2 shown, in the lower area the associated lifting spindle 15 , as well as the one of the two lifting grabs 16 , In the portal frame 11 itself is a container box 10 to recognize in cross section. The, this container box 10 assigned, comb conveyor 17 can also be seen here. The comb conveyor 17 will be described later in more detail. The portal frame 11 is upstream, according to the plan view of 2 , a roller conveyor 6 that with a cross conveyor 12 combined, seen in cross-section. Then there are two devices 32 for aligning glass panes 4 shown. Below the cross conveyor 12 is a drive 14 , representing the single drives.

Such a cross conveyor 12 has a plurality of individually driven rollers on the in the interstices of the associated normal roller conveyor 6 can be raised and lowered and the appropriate glass pane 4 thus can carry across the normal direction of movement. The corresponding mechanism for raising and lowering is not shown for reasons of clarity. These roller conveyors 5 with integrated cross conveyor 12 serve mainly the purpose of incoming glass sheets 4 according to their quality class on the corresponding container boxes 10 to distribute. The relevant control for this is done via a central computer.

For the next following roller conveyor 5 are two, partially acting, drives 13 to recognize.

In the 4 a spatial representation of the portal of a loading station is shown.

With 11 Here again is the portal frame of the loading station 2 designated. At the top of the crossbeam is the drive 9 for the lifting device of the container box shown 10 with two glass panes mounted in parallel and in the way 4 watching. In this illustration, the front part of a comb conveyor 17 , the Indian 3 naturally only indistinct, with its foremost promotional role 22 and the drive 23 to recognize right front. Next are also on the left and right side two roller supports 24 for fixing the rollers 22 with the base frame of the comb conveyor 17 shown in the foreground. The overall structure of a comb conveyor 17 is from the 5 refer to. He got his name because of several pairs of roll supports 24 with their respective roles 22 one behind the other like the teeth of a comb are arranged on a base frame, wherein the rollers 22 together from the drive 23 are driven. On these roles 22 become the glass panes 4 from the respective Rol roller conveyors 5 , in the appropriate container box 10 promoted. In the container box 10 , which has the basic shape of a cuboid, are mounted on the two side walls several layers of horizontally mounted rods on which the respective glass panes 4 can be stored. Such with glass panes 4 filled container box 10 is in the 6 to see. To the the container box 10 with additional glass panes 4 to fill up, the container box 10 above left and right mounted lifting gripper 16 raised.

The next, in the container box 10 to be transferred glass panes 4 thus be in the room under the already in the container box 10 stored glass panes stored. That means a container box 10 is loaded from top to bottom and vice versa can be unloaded from bottom to top. That's why a comb conveyor points 17 a comb-like structure of the drive 23 his roles 22 on which it allows him the necessary for the loading vertical movement of a container box 10 not to hinder. In the place of the inlet of glass panes 4 There is a detection device on the left and right 25 to control the quality of the glass sheet concerned. This can be, for example, a reading device for one on the glass 4 be attached bar code. Similarly, there are edge detectors in the area of the inlet on the left and right 21 for a collision-free loading of the container box 10 to ensure.

5 shows a spatial representation of a comb conveyor 17 , Here are the opposing roll supports left and right 24 to see the over stabilizers 26 connected to a base frame. As shown on the right, all roles are shared by a drive 23 driven, this is done via an endless belt, in addition to the actual drive rollers of the respective roles 22 over, arranged in the base frame, pulleys running. In this 5 is a special form of detection device 25 shown for quality inspection. In the same form of the arrangement, optical sensors can additionally be used to detect cracks in the glass panes 4 be arranged. Such cracking is evidenced by the presence of unusual stray light from a reference light source. In a special embodiment of a comb conveyor 17 become the conveyor rollers 22 not shared by a drive 23 driven at the same speed but have, each based on a drive shaft, separate drives. This allows the conveyor rollers 22 , which are on a drive axle, to run at different speeds. Thus, a glass pane entering the container box can 4 first retracted relatively quickly and then by means of one or more slower running conveyor rollers 22 gently slowed down without the risk of having a glass pane 4 on the back of the container box unintentionally moves out. Such a system can be compared with an automatic braking system (ABS), as is common in the automotive industry, in the effect. The corresponding control parameters for such an accelerated cycle operation can be determined in preliminary tests as a function of the thickness or the mass of the respective glass pane. In this way, every glass pane 4 with optimal speed and high clock frequency in a container box 10 be spent.

The 6 shows a spatial representation of a container box 10 , The container frame 27 has in this case the structural design shown. However, this can be modified, according to the skilled person, in each case according to specific design requirements, without departing from the inventive basic form. This container box is here with a total of 70 panes of glass 4 load each on three carrier elements 30 rest. On the front left and right, with the corresponding supplement on the back of each one pit feet 29 To recognize, in the middle between the two respective layers at glass panes 4 is an additional, the exact position fixing, fixing 28 attached The 7 shows a detailed drawing of the comb conveyor.

Here you can see that a glass pane 4 additionally on the front and the back as a position security 31 is mounted in a recess which prevents an accidental impact of sliding out of a glass sheet from a container box. Left and right are here each a roll support 24 a comb conveyor 17 shown. In the middle is a rod-shaped support element 30 outlined.

The Complex control of the described movements requires a special control program.

1

Container shelf

2

loading

3

Portal boxes converter

4

pane (Module)

5

roller conveyors

6

Roller conveyor combined with a cross conveyor ( 12 )

7

roadway for portal converters

8th

safety device (Laser blind)

9

drive for the lifting device of the loading station

10

container box

11

portal frame the loading station

12

cross conveyor

13

drive for roller conveyors

14

drive for cross conveyors

15

lifting spindle a lifting device

16

lifting gripper

17

comb conveyor

18

portal frame the box converter

19

Front fork (Boxes) converter

20

lifting drive (Boxes) converter

21

edge detector

22

conveyor rollers

23

drive (Comb conveyor

24

roller support (Comb conveyor

25

Detection device (Quality)

26

stabilizer

27

Container frame

28

fixing

29

Speaker Plinth

30

support element

31

securing the position

32

Device for aligning glass sheets ( 4 )

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102007052027 B3 [0003]
• DE 102007052182 B4 [0005]

Claims (9)

Device for archiving and / or temporarily storing coated glass panes in clean rooms in rapid cycle sequence and in large numbers, with the following features: a) a large number of roller conveyors ( 5 ) for feeding glass sheets ( 4 ), b) a large number of roller conveyors ( 6 ) each with a cross conveyor ( 12 ) is combined in the form of a plurality of individually driven rollers c) a number of devices ( 32 ) for aligning glass sheets ( 4 ), d) a plurality of container boxes ( 10 ) for horizontal stacking of glass sheets ( 4 ), e) a number of loading stations ( 2 ) with a portal frame ( 11 ) with a lifting device for container boxes ( 10 ), f) a number of portal box translators ( 3 ) with a lifting device and telescopic forks ( 19 ) for the implementation of container boxes ( 10 ), whereby the portal box translators ( 3 ), g) a number of container shelves ( 1 ) Device according to claim 1, characterized in that the device ( 32 ) for aligning the glass sheets ( 4 ) Means for detecting the position of the longitudinal axis of a container box ( 10 ) as a reference line and edge detectors 21 for determining the side edge of a glass pane ( 4 ) and via the selective control of parts of the relevant roller conveyor ( 6 ) and the corresponding cross conveyor ( 12 ) causes a parallel alignment of the side edge to the reference line at the necessary distance. Apparatus according to claim 1 or 2, characterized in that a container box ( 10 ) for each shelf at least three support elements ( 30 ) and the respective glass sheets ( 4 ) from below into the area of the container box ( 10 ) acting system of rollers horizontally in the container box ( 10 ) to get promoted. Apparatus according to claim 3, characterized in that the system of rollers from a comb conveyor ( 17 ) in which the axes on which the conveyor rollers ( 22 ) run on vertical roller supports ( 24 ), which are equidistantly mounted on a supporting structure, and that the axes of the conveyor rollers ( 22 ) a common drive ( 23 ) exhibit. Apparatus according to claim 4, characterized in that each axis of the conveyor rollers ( 22 ) has a separate drive which is separately controllable. Device according to one of claims 1 to 5, characterized in that a container box ( 10 ) Detection devices ( 25 ) for detecting quality characteristics of the glass sheets ( 4 ), Devices for detecting cracking on a glass sheet ( 4 ) and additional edge detectors ( 21 ) having. Device according to one of claims 1 to 6, characterized in that a portal box converter ( 3 ) Telescopic forks ( 19 ), which mechanically and / or electrically at the bottom of a container box ( 10 ) can engage with corresponding devices and can also be solved again. Device according to one of claims 1 to 7 characterized characterized in that all movable parts of the plant according to Conditions in clean rooms made of abrasion resistant material. Device according to one of claims 1 to 8, characterized in that each glass pane ( 4 ) in a storage box ( 10 ) a position assurance ( 31 ) having