DE19824406B4 - Plant for drying articles - Google Patents

Abstract

investment for drying articles (44) such as flowerpots or the like. with a dryer (12) through which the articles to be dried (44) along a drying path be moved through, wherein the dryer (12) one above the other two drying channels (18, 20) having, along each drying channel (18, 20) a linear guide (30) for Cartridges (32), each cassette (32) open at the bottom open bow-shaped with a Number on the side opposite Support organs (40) for Pallets (42) is formed, and at one end face (50) with at least one hook element (52) and on the second end face (54) is provided with at least one Ösenelement adapted thereto (56), with which the cassettes (32) along the two one above the other provided drying channels (18, 20) are hooked together, the dryer (12) has a lifting device (14) for lifting the respective, equipped with articles to be dried (44) cassette (32) to an inlet (22) of the lower first drying channel (18) and for lowering the respective, with dried articles (44) equipped Cassette (32) from ...

Description

The invention relates to a system for drying articles such as flowerpots or the like. with a dryer, through which the articles to be dried are moved along a drying path (cf., for example, US Pat DE 35 13 145 A1 or DE 1926465 B ).

such Drying systems have been proposed in various configurations. With one of these suggestions is through the dryer a chain meandering through, which with a drive device is connected, and from which hangers for pallets hang down, up which the articles to be dried are arranged. In such a Drying plant is the feed rate of the chain relatively low, a pendulum movement of the pallets to be dried with articles to be dried to avoid.

Furthermore a drying plant was proposed in which one above the other a plurality of linear transport means are provided, to which Pallet holding devices hang. In such a drying plant, it is necessary, the individual Transport devices each with an associated drive device to connect, which represents a corresponding expense.

Of the Invention is based on the object, a system of the aforementioned Way of creating that compared to the drying systems described above is simple, with this simple structure with a excellent operational reliability combined.

These Task is at a drying plant of the type mentioned according to the invention the features of claim 1 solved.

The inventive plant allows one automatic through-drying of the articles to be dried, the stored on pallets with the corresponding cassette to the entrance of the lower first drying channel, with the help of the associated Pusher moved into the lower first drying channel and there to an already existing at the entrance of the first drying channel Cassette with the help of at least one hook and loop element be docked closely adjacent. With the help of at the exit of the first drying channel provided cassette pulling device can the whole, in the first Drying channel befindlicher strand of interlocked cassettes be pulled towards the exit of the first drying channel. At the output of the lower drying channel can then be a corresponding Cassette with intermediately dried articles to the provided there Hand over lifting device and with the aid of the lifting device to the upper second drying channel can be lifted. There is the said cassette with the help the thrust device provided there in the entrance of the upper inserted second drying channel, said said Cassette with the corresponding last cassette in the second drying channel automatically closely adjacent hooked. By means of at the exit of the upper second drying channel provided cassette pulling device can the entire, located in the second drying channel strand from hooked cassettes towards the exit of the be pulled second drying channel. The respective, last said cassette pulling device neighboring, associated ones Cassette with dried articles can then be lifted by means of the lifting device lowered to the discharge device. There is the said cassette gradually emptied so that they after emptying again to take over of pallets with articles to be dried is available. The drying cycle is therefore closed.

The drying system according to the invention is thus characterized in that the cassettes simply by Hook and loop elements hooked together and chained together, the Unlocking of adjacent cassettes easily and without further aids when lifting at the exit of the first drying channel to the entrance of the second drying channel and when lowering the respective cassette from the exit of the second drying channel to the discharge device he follows.

Thereby, that each underside open, bow-shaped cassette with a number of laterally opposite support organs for pallets is trained, it is possible in a bow-shaped cassette on top of each other temporarily arrange a corresponding number of pallets. With the help of Aufzugeinrichtung is a simple step or cyclically lowering the respective, provided with dried articles cassette in relating to the discharge device to the dried articles of to transfer said cassette to the disposal facility, as well as a simple step or cycle-wise lifting of the emptied Cassette with respect to the feeder, to said cassette again with pallets resting, to be dried articles to equip and the thus stocked Cartridge then through the entrance into the lower first drying channel of the dryer.

It has proved to be useful in the drying system according to the invention, when the extending through the respective drying channel linear guide for the cassette is formed by a pair of rails, and when each cassette has rail wheels on which the respective cassette is provided hanging. Because he inventive drying system the cassettes in the superimposed drying channels entangled with each other, ie are closely chained, the gradual advance of the cassettes in the drying channels oscillations of the cassettes are excluded in a simple manner, which means that the feed rate for the material to be dried in the drying channels optimized accordingly can be. This has an advantageous effect on productivity.

at the drying plant according to the invention are the ones mentioned above, forming the linear guides Rails preferably formed as U-profile rails. Such U-profile rails have the advantage that with their help a reliable leadership of rail wheels and thus the cassettes along the two drying zones is ensured. Such U-profile rails are reasonably priced Available.

According to the invention, each Cassette have a top part, of which two side legs protrude down, with the support organs on each side leg forming angle profiles are attached, and wherein the top of each other each spaced a pair of rail wheels are provided. So educated Cassettes are easy and inexpensive to produce, they point excellent operational reliability.

The Hook element of the respective cassette is preferably two-armed formed angled and pivotable about a pivot axis, in the transition area is provided between the angled arms of the hook element, the hook arm with a hook wedge surface and the second arm with an operating end is trained. The hook wedge surface serves to the corresponding hook element about the pivot axis first to swing open when coupling adjacent cassettes, then in the closely adjacent state between two cassettes gravitationally the Hook element with the eyelet element the adjacent cassette to catch easily. Should be Contrary to expectations, the hook element will be stuck once in its open position, so it is with the help of the end of the operation, i.e. with the at the end of the operation adjacent eyelet element forced from this open position into the hooking i. Zurückzuwenken chaining position.

Around take over from the feeder pallets and to the discharge device Hand over pallets to be able to it is preferred if the supply device and the discharge device aligned with each other in the lifting device and a width which is smaller than the clear distance between the pallet Auflagerorganen every cassette. By such a training, it is namely possible, the each cassette with the appropriate Auflagerorganen slightly below the level of the feeder and below the level of the discharge device to lower from the feeder with articles to be dried stocked Transfer pallets to the pallet support organs and pallets from the pallet support organs handed over to the discharge device to be able to.

Around To ensure an optimal procedure, it is expedient if the removal device and the supply means a self-contained Pallet transport path form. This transport path can be known as a roller conveyor or the like. be educated.

If the drying system according to the invention for Drying flower pots or the like. is provided, then it is advantageous if the supply device an article press is assigned. From this press can the To be dried items are simply handed over to pallets using the feeding device for the lifting device and with the aid of the lifting device handed over to the dryer become. As already stated at the same time, the lift facility also serves to Cassettes with pallets, i. with the dried ones resting on the pallets To pass articles from the dryer to the discharge device. There will be then remove the dried items from the pallets, after which the peeled ones Pallets again for loading are suitable for drying articles.

Further Details, features and advantages will be apparent from the following Description of an embodiment schematically illustrated in the drawing the plant of the invention for drying articles, which are, for example, to be dried flowerpots or the like. is. Show it:

1 a plan view of the plant,

2 a side view of the system according to 1 with a look into the dryer,

3 a side view of the Aufzugeinrichtung the system according to the 1 and 2 on a larger scale when loading a cassette with articles resting on pallets, to be dried,

4 one of the 3 similar illustration of the lifting device when emptying a cassette and when transferring the dried articles to the Abfuhgeinrichtung,

5 a front view of a cassette with stacked, spaced-apart pallets to be dried or getrock neten articles are stocked,

6 a side view of the cassette according to 5 with the pallets equipped with articles, and

7A - 7F different functional positions of adjacent and partially drawn cassettes.

The 1 and 2 show a plant 10 for drying articles made of clay or ceramic material, for example. In the form of flower pots or the like. The drying plant 10 has a dryer 12 on which a lift facility 14 upstream and a lifting device 16 is subordinate. The dryer 12 has a lower first drying channel 18 and an upper second drying channel 20 on, which are provided one above the other. The lower first drying channel 18 has an entrance 22 and an exit 24 and the upper second drying channel 20 indicates the exit 24 assigned an input 26 and from it an exit 28 on.

Through the lower first drying channel 18 and through the upper second drying channel 20 each extends a linear guide 30 passing through the cassettes 32 are provided, which - as from the 5 and 6 can be seen - underside open bow-shaped. Every cassette 32 has a top 34 on, from which in the middle two side legs 36 protrude down. On each of the two side legs 36 are spaced angular profiles 38 attached, which are opposite to each other at the same height and thus Auflagerorgane 40 for pallets 42 form on which the dried or dried articles 44 rest.

At the top 34 the respective cassette 32 are each a pair of rail wheels 46 provided by means of which the concatenated cassettes 32 along the through the dryer 12 extending linear guides 30 are movable. The through the respective drying channel 18 . 20 extending linear guide 30 is - like out 5 visible - from a pair of rails 48 formed, which are formed as U-profile rails.

Every cassette 32 has at its one end 50 at least one pivotable hook element 52 and on its second end facing away from it 54 at least one adapted Ösenelement 56 on. How out 7 it can be seen that each hook element is 52 formed with two arms angled and about a pivot axis 58 pivotable in the transition area between the angled arms 60 and 62 is provided. The hook arm 60 is with a hook wedge surface 64 trained and the second arm 62 has an actuation end 66 on.

The elevator 14 the drying plant 10 is a feeder 68 for articles to be dried 44 equipped pallets 42 and a discharge facility 70 for with dried articles 44 equipped pallets 42 assigned. The supply and the discharge device 68 and 70 can by a common transport device 72 be formed. The feeder 68 and the Aufuhrung 70 form with a to the transport device 72 provided in parallel second transport device 74 and with two spaced apart and the transport means 72 and 74 interconnecting cross-transport facilities 76 and 78 a self-contained pallet transport track 80 , like out 1 is apparent. The pallet transport track 80 or the supply device 68 is an article press 82 assigned.

The following is the operation of the dryer system 10 described: With the help of article press 82 become articles 44 pressed and on an appropriate pallet 42 parked at the cross-conveyor 78 (Sh. 1 ) is located. Along this transverse transport device 78 will be the items to be dried 44 equipped pallet 42 to the feeder 68 transported. With the help of the feeder 68 becomes the said, with articles to be dried 44 equipped pallet 42 to the lift device 14 transported. At the elevator 14 there is an empty cassette 32 in its lowest position, so that it is possible with the help of the feeder 68 a stocked pallet 42 in the top, ie to the top 34 adjacent floor to the top support organs 40 remedy. Then the cassette 32 moved upwards by a certain amount, then on the middle floor between the Auflagerorganen 40 another, with articles to be dried 44 equipped pallet 42 to be able to order. After that, the cassette 32 with the help of the lift device 14 further raised to even on the bottom floor of the cassette 32 a stocked pallet 42 to be able to order. Subsequently, the cassette so fully loaded 32 with the help of the lift device 14 further raised until their rail wheels 46 with the rails 48 of the lower first drying channel 18 of the dryer 12 are at the same height. With the help of a push device 84 (Sh. 2 ) then becomes the said cassette 32 from the elevator 14 towards the entrance 22 of the lower first drying channel 18 postponed. Is in 7B through the arrow 86 indicated. In this displacement, the Ösenelement comes 56 the corresponding cassette 32 first at the hook wedge surface 64 the hook element 52 the respectively adjacent cassette 32 to the plant. When moving the in 7B on the left side drawn cassette 32 towards the Kas on the right side sette 32 becomes the hook element 52 swung clockwise, like out 7E is apparent. Will the cassette drawn on the left 32 even further adjusted to the right - which with the help of the thrust device 84 happens - so falls the hook element 52 due to gravity in the eyelet element 56 so that the cassettes to be linked together 32 interlocked with each other. Should the hook element 52 eg due to friction not around its pivot axis 58 automatically swing back into the Verhakstellung, so this is enforced by the Ösenelement 56 at the end of the operation 66 comes to rest, causing the hook element 52 is forced to its pivot axis 58 to pivot in the anti-clockwise direction in the counterclockwise direction.

The cascaded chapters 32 will be using one at the exit 24 of the lower first drying channel 18 provided traction device 86 a cassette from the entrance 22 to the exit 24 shifted, wherein in the first drying channel 18 a corresponding drying process takes place. With the help of the lifting device 16 will then be the respective output 24 output cassette 32 to the entrance 26 the upper second drying channel 20 lifted. With the help of a push device provided there 88 this cassette will then pass through the entrance 26 in the upper second drying channel 20 pushed. This will be his hook element 52 with the eyelet element 56 the last, in the upper second drying channel 20 in the neighborhood of his entrance 26 located cassette 32 hooked. At the same time, the entire interlocked chain of cassettes 32 in the upper second drying channel 20 with the help of one at the exit 28 the upper second drying channel 20 provided traction device 90 to a cassette 32 towards the entrance 26 to the exit 28 adjusted. The from the exit 28 leaking cassette 32 is doing to the Aufzugeinrichtung 14 handed over and with the elevator 14 to the discharge facility 70 lowered. The respective cassette 32 is here at the discharge facility 70 gradually emptied. The first is the bottom palette 42 with the dried articles 44 on the discharge facility 70 switched off. With the help of the said discharge device 70 will this palette 42 then from the cassette 32 moved away. Subsequently, the cassette 32 accordingly further lowered until the middle, with dried articles 44 equipped pallet 42 on the discharge facility 70 rests and with their help from the cassette 32 can be moved away. After that, then the cassette 32 with the help of the lift device 14 lowered even further, even to the top 34 adjacent top, with dried articles 44 equipped pallet 42 on the discharge facility 70 rests and with their help from the cassette 32 can be removed. The cassette 32 is then replaced and can be re-equipped with pallets on which items to be dried 44 are stored.

The with dried articles 44 equipped pallets 42 be at the discharge facility 70 emptied. The empty pallets 42 be with the cross conveyor 76 to the second transport device 74 and from there to the cross conveyor 78 passed and in the neighborhood of the article press 82 positioned to be able to be fitted with pressed and dried articles. The cycle is closed.

When lifting the respective cassette 32 with the help of the lifting device 16 from the lower first drying channel 18 to the upper second drying channel 20 becomes the hook element 52 said cassette 32 without further ado from the loop element 56 the neighboring, still at the exit 24 of the lower first drying channel 18 remaining cassette 32 solved. That's over 7F can be seen, where there is the arrow 92 this lifting movement of the cassette 32 clarified. Accordingly, the out of the exit 28 the upper second drying channel 20 moved out cassette 32 without further ado of the adjoining, nor on the linear guide 30 the upper second drying channel 20 remaining cassette 20 solved when in the elevator 14 located, with dried articles 44 equipped cassette 32 with the help of the lift device 14 is lowered. That's over 7D apparent, wherein said lowering by the arrow 94 is shown in the drawing.

10

drying plant

12

Dryer (from 10 )

14

Elevator (from 10 )

16

Lifting device (from 10 )

18

lower first drying channel (from 12 )

20

Upper second drying channel (from 12 )

22

Entrance (from 18 )

24

Output (from 18 )

26

Entrance (from 20 )

28

Output (from 20 )

30

Linear guide (for 32 )

32

cassette

34

Upper part (from 32 )

36

Side legs (from 32 )

38

Angle profile (for 40 )

40

Auflagerorgane

42

pallets

44

to drying or dried articles

46

Rail wheels (from 32 )

48

Rails (from 30 )

50

Front side (from 32 )

52

Hook element (on 50 )

54

Front side (from 32 )

56

Eyelet element (on 54 )

58

Swivel axis (from 52 )

60

Hook arm (from 52 )

62

second arm (from 52 )

64

Hook wedge surface (at 60 )

66

Operating end (at 62 )

68

feeder

70

discharge device

72

Transport device (for 68 and 70 )

74

second transport device (from 80 )

76

Transverse transport device (from 80 )

78

Transverse transport device (from 80 )

80

Pallet transport path

82

Article Press (on 80 )

84

Pusher (on 14 and 18 )

86

Towing device (an 16 and 18 )

88

Pusher (on 16 and 20 )

90

Towing device (an 14 and 20 )

92

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94

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Claims (8)

Plant for drying articles ( 44 ) like flowerpots or the like with a dryer ( 12 ) through which the articles to be dried ( 44 ) are moved along a drying path, wherein the dryer ( 12 ) one above the other two drying channels ( 18 . 20 ), wherein along each drying channel ( 18 . 20 ) a linear guide ( 30 ) for cassettes ( 32 ), each cassette ( 32 ) underside open bow-shaped with a number of laterally opposite Auflagerorganen ( 40 ) for pallets ( 42 ) is formed, and at one end face ( 50 ) with at least one hook element ( 52 ) and at the second end face ( 54 ) with at least one eyelet element adapted thereto ( 56 ), with which the cassettes ( 32 ) along the two drying channels ( 18 . 20 ) are hooked together, the dryer ( 12 ) a lift device ( 14 ) for lifting the respective items to be dried ( 44 ) equipped cassette ( 32 ) to an entrance ( 22 ) of the lower first drying channel ( 18 ) and for lowering the respective, with dried articles ( 44 ) equipped cassette ( 32 ) from an output ( 28 ) of the upper second drying channel ( 20 ) to a removal facility ( 70 ), and a lifting device ( 16 ) for lifting the respective cassette ( 32 ) from an output ( 24 ) of the lower first drying channel ( 18 ) to an entrance ( 26 ) of the upper second drying channel ( 20 ) and the entrance ( 22 ) of the lower first drying channel ( 18 ) at the elevator ( 14 ) a cassette pusher ( 84 ), the output ( 24 ) of the lower first drying channel ( 18 ) on the lifting device ( 16 ) a cassette pulling device ( 86 ), the entrance ( 26 ) of the upper second drying channel ( 20 ) on the lifting device ( 16 ) a cassette pusher ( 88 ) and the output ( 28 ) of the upper second drying channel ( 20 ) at the elevator ( 14 ) a cassette pulling device ( 90 ) assigned. Installation according to claim 1, characterized in that the through the respective drying channel ( 18 . 20 ) extending linear guide of a pair of rails ( 48 ) is formed, and that each cassette ( 32 ) Rail wheels ( 46 ) to which the cassette ( 32 ) is provided hanging. Plant according to claim 2, characterized in that the rails ( 48 ) are designed as U-profile rails. Plant according to claim 1 or 2, characterized in that each cassette ( 32 ) a top ( 34 ), of which two side legs ( 36 ) projecting downwards, wherein on each side leg ( 36 ) the support organs ( 40 ) forming angle profiles ( 38 ) and at the top ( 34 ) spaced from each other a pair of rail wheels ( 46 ) are provided. Plant according to claim 1, characterized in that the / each hook element ( 52 ) formed with two arms angled and about a pivot axis ( 58 ) pivotable in the transition region between the angled arms ( 60 . 62 ) of the hook element ( 52 ) is provided, wherein the hook arm ( 60 ) with a hook wedge surface ( 64 ) and the second arm ( 62 ) with an actuating end ( 66 ) is trained. Plant according to claim 1, characterized in that the supply device ( 68 ) and the discharge device ( 70 ) in the area of the elevator ( 14 ) are aligned with each other and have a width which is smaller than the clear distance between the pallet support members ( 40 ) each cassette ( 32 ). Plant according to claim 6, characterized in that the discharge device ( 70 ) and the feeder ( 68 ) a self-contained pallet transport path ( 80 ) form. Plant according to claim 6 or 7, characterized in that the supply device ( 68 ) an article press ( 82 ) assigned.