DE20010511U1 - Plant for the production of brick products such as roof tiles, masonry tiles and the like. using movable dryer and / or burning racks - Google Patents

Description

H -■ .ti « » 4

21.032-IP

KELLER GMBH, D-49479 Ibbenbüren-Laggenbeck

Plant for the production of brick products, such as roof tiles, bricks, etc., using mobile drying and/or firing racks

Description

The invention relates to a system according to the preamble of claim 1.

In this invention, "drying and/or firing frame" is understood to mean a frame or scaffolding which

a) can be transported on rails or rollers

b) can be transported by means of a trolley, sledge or transport beam, or

c) is itself designed as a car

and is loaded in rows with the shapes to be subjected to heat treatment. At least for the loading process, a precisely positioned feed and stopping of such a dryer and/or firing frame within the effective range of a loading device is necessary.

With regard to generic systems and the use of dryers and/or firing racks relevant to the invention, reference can be made to the following "patent literature": DE 32 44 183 C1, DE 196 02 778 C1, DE 196 09 474 C1, DE 197 39 027 A1, DE 296 09 382 111, WO 92/04588, WO 93/25360, WO 97/27440.

The previously known systems have the disadvantage that for the cycle of dryer and/or kiln cars, for example, either a pusher system with a rotating transport conveyor plus an additional clamping device for securing the cars is used, or a rack and pinion feed device with a forward and backward conveyor element is used. This results in a time-consuming method of operation. This is a major disadvantage, especially when

it i -. s -4 S * » »

21.032-&Egr;&Rgr;

The moldings are to be lined up in transverse rows over a short feed path and in rapid succession.

The invention is based on the object of improving a generic system in such a way that, with a simple device structure, a precise positioning of dryer and/or firing frames in relation to a loading device (for loading and/or unloading) as well as an exact alignment for a positionally accurate arrangement of moldings in transverse rows is possible and the cycling can be carried out more quickly.

According to the invention, this is achieved by a system according to claim 1.

The system according to the invention uses simple means to ensure precise and rapid work in connection with the "cycling" process when loading and/or unloading a dryer and/or firing rack.

Because both sides of the frame are transported in a directionally stable manner and at the same time, it is ensured that transverse lines running at right angles to the direction of transport, for example aligned support points of support elements arranged in a transverse row or attached/attachable, e.g. so-called molding supports, pass through the area of a loading station, unloading station or unloading and loading station in an accurate position and at the correct angle or without distortion. The precise positioning of the frame enables a loading device to work perfectly, which can move precisely to the setting down and/or receiving position(s) during downtimes of a dryer and/or firing frame. Precise loading device work prevents damage to the molding and ultimately increases product quality - this is particularly the case in roof tile production using kiln furniture that supports the back, where precise positioning enables the correct support of the roof tiles to be fired.

21.032-&Igr;&Rgr;

Time savings in the cycling of the dryer and/or firing racks are achieved by eliminating "unproductive" times, such as those for a clamp movement or a feed element return stroke.

Advantageous further developments of the invention emerge from the subclaims.

The subject matter of the invention extends not only to the individual claims, but also to their combination.

' ·
* ·
i * • . *
it
· **
S
♦ »-· «*
i * ii-
* * 21 .032-IP 3.9 e» 4

An embodiment of the invention is shown in the drawing and is explained in more detail below.

Fig. 1 is a front view of a kiln wagon loaded with roof tiles, which is

Adjustment transport screws are aligned and transported in a true-to-track manner, Fig. 2 a side view of the same system and
Fig. 3 is a detail view, enlarged compared to Fig. 2, of the positively guiding pin engagement in an adjusting transport screw.

The invention relates to a plant for producing brick products, such as roof tiles, bricks and the like, using movable drying and/or firing racks.

In this system for producing brick products numbered 1, such as roof tiles, bricks and the like, forced-guided drying and/or firing frames 2 that can be moved in cycles, onto which the moldings 1 to be dried and/or fired are to be placed in precise positions, are fed to a loading station (not shown) and stopped there in precise positions.

In the area of the frame passageway of the dryer and/or firing frames 2 required for loading, two counter-rotating adjusting transport screws 3, 4 are arranged at a lateral distance from each other, the axes of rotation of which run parallel to each other and parallel to the floor,

Each drying and/or firing frame 2 has on both sides a conveyor screw 3 / 4

which can be brought into operative connection and these frame-specific driving devices 5 lie on a line crossing the transport direction T at right angles.

i Si «* »

21.032-IP

The two adjusting transport screws 3, 4 can be driven simultaneously and at the same rotational speed to act on both driving devices 5 of a dryer and/or firing frame 2.

Each dryer and/or firing frame 2 is assigned at least one rail- or groove-guided guide element for precise guidance, which is arranged at a distance from the driving elements (pos. 5) that can be transported by means of the adjusting transport screws 3, 4.

As can be seen from the drawing, the drying and/or firing frames 2 are formed by carriages. The two adjusting transport screws 3/4 are arranged in such a way that when the carriage passes through they are located underneath the carriage body between the side wheels 6 and the side edge of the carriage body. Preferably, a pin or a roller is arranged on each side of the carriage, which runs into an adjusting transport screw 3/4.

Claims (4)

1. Plant for the manufacture of brick products, such as roof tiles, bricks and the like, using cyclically movable, positively guided drying and/or firing frames, on which the moldings to be dried and/or fired are to be placed in precise positions by means of at least one mechanical loading station, each drying and/or firing frame having a plurality of receiving places for the moldings in and across the transport direction, characterized in that a) in the area of the frame passageway of the dryer and/or firing frames ( 2 ) required for loading, two adjusting transport screws ( 3 , 4 ) which can be driven in opposite directions are arranged at a lateral distance from one another, the axes of rotation of which run parallel to one another and parallel to the floor, b) each drying and/or firing frame ( 2 ) has a driving device ( 5) in both side areas that can be brought into operative connection with an adjusting transport screw (3/4 ) , and these driving devices ( 5 ) of the frame are located on a line crossing the transport direction (T) at right angles , c) the two adjusting transport screws ( 3 , 4 ) can be driven simultaneously and at the same rotational speed to act on both driving devices of a dryer and/or firing frame ( 2 ) and d) each dryer and/or firing frame ( 2 ) is assigned at least one rail- or groove-guided guide element for the purpose of track-true forced guidance, which is arranged at a distance from the driving elements that can be transported by means of the adjusting transport screws ( 2 ). 2. Plant according to claim 1, characterized in that the drying and/or firing frames ( 2 ) are formed by carriages or are arranged on carriages and the two adjusting transport screws ( 3 , 4 ) are arranged in such a way that they lie below the carriage body between the lateral wheels ( 6 ) and the side edge of the carriage body when the carriage passes through. 3. Installation according to claim 1 or 2, characterized in that a pin or a roller is arranged on each side of the carriage, which runs into an adjusting transport screw ( 3 , 4 ). 4. Installation according to one of claims 1 to 3, characterized in that the pins or rollers provided as a driving device ( 5 ) are arranged on a carriage chassis projecting downwards.