DE202021103543U1 - Loading device for an oven - Google Patents

Abstract

Loading device (1) for an oven with a vertically aligned lifting column (3) for receiving at least two lifting tables (7a, 7b), each lifting table (7a, 7b) having a cloth removal device (9), characterized in that the lifting column (3 ) receives at least one lifting table (7a, 7b) along the lifting column (3) so that it can be moved independently of one another on two opposite sides.

Description

The invention relates to a loading device for an oven with a vertically aligned lifting column for receiving at least two lifting tables, each lifting table having a cloth pulling device.

After the dough portions have been formed, for example for rolls or bread, the dough pieces formed on them are temporarily stored for proofing on cloth peelers or in proofing baskets in a proofing trolley. The proofing trolley is located in a proofing room, which has the optimum temperature and humidity for the proofing. Such a proofing trolley presents itself as a frame with several levels for holding several stacked cloth pulling devices. After the proofing process has ended, the dough pieces must be transferred to the baking surface in the oven. The dough pieces either cook in portions in the proofing baskets or directly on the cloth pulling devices. With the so-called basket proofing, the dough pieces are tipped onto the cloth pulling devices before they are loaded.

To transfer the pieces to the baking surfaces of the oven, the cloth pulling devices are then pushed into the oven. When the cloth puller is withdrawn, the actual cloth puller moves relative to its cloth. Here, the dough pieces are placed on the baking surface below.

In this context, from the DE 10 2005 005 986 A1 already known to move a plurality of cloth pulling devices simultaneously and one above the other in the baking chamber of an oven and to deposit the dough pieces on the baking surface or the baking trays when the cloth pulling devices are moved back.

From the WO 2007/051645 A2 a device for the automatic introduction and removal of cloth pulling apparatus in an oven is known.

A charging device for baking ovens is also known, a cloth pulling device being arranged on a lifting device. The standard version of the cloth puller is usually 60 cm wide and its length is adapted to the individual dimensions of the oven.

So-called double-width or triple-width ovens, which have a width of 120 cm or 180 cm, are also common. In order to load such an oven according to the state of the art, double the width would be required that first the one cloth puller with a width of approx to cover the cloth stripper again with dough pieces and to load the second half of this oven. However, the time required to re-use the cloth stripping apparatus is relevant for the quality of the baked product because the dough pieces that have already been deposited in the oven are exposed for too long to the moisture required by the process due to the steam. The dough pieces exposed to the steam tend to crack due to the condensing steam on the surface.

In principle, this could be remedied by providing a loading device with double-width cloth pulling devices in order to cover the baking surface of the double-width oven with dough pieces in a single insertion process. The disadvantage here, however, is that the double-wide cloth puller requires a relatively large amount of space in the bakery, which is often a problem in a bakery, since bakeries are always relatively small and cramped.

In this context, from the DE 20 2020 101 530 U1 a loading device for an oven with two cloth pulling devices arranged at different heights is known, the one lower second cloth pulling device being displaceable transversely to its longitudinal axis relative to the upper, first cloth pulling device. The possibility of lateral displacement of the second cloth pulling device means that the second cloth pulling device can be moved under the first cloth pulling device when the first cloth pulling device is arranged above the second cloth pulling device on the loading device. This means that the loading device is relatively space-saving, although double-width ovens can be loaded with dough pieces relatively quickly.

When loading two oven strips of a double-width oven, it is now essential to cover these oven strips with baked goods as quickly as possible, so that the baked goods are exposed to the steam for the same period of time in order to prevent steam cracks from occurring, as was the case before has been described.

To achieve the object, it is proposed according to the invention that the lifting column receives at least one lifting table on mutually opposite sides so that it can move independently of one another along the lifting column. That is, the inventive idea consists in arranging two independently vertically movable lifting tables with the corresponding cloth pulling devices on a lifting column. Here are the Lifting movements are not kinematically coupled, so that each lifting table can be moved vertically independently of the other.

According to a special feature of the invention it is provided that a counterweight is assigned to each lifting table. The counterweight is preferably arranged on the lifting column, so that the effort required to move the lifting tables is reduced.

According to a further special feature of the invention, the lifting table can be connected to the lifting column in a snap-in manner, in order to ensure that the cloth puller can be moved in smoothly over the stove top of the oven.

The lifting column, which is designed to be hollow for receiving the counterweights, is arranged on a chassis in order to be able to move the loading device along the oven openings.

Specifically, it is advantageously provided that the lifting table is connected to the lifting column by at least one cantilever arm, the lifting column also having latching cams arranged one above the other, which can be brought into locking connection with the respective cantilever arm, so that each lifting table and correspondingly Each Tuchabziehapparat, can be fixed to the required height, the height depends on the height of the hearth strips on which the baked goods are to be placed.

• 1 die Beschickungseinrichtung in perspektivischer Darstellung;
• 2 einen Ausbruch aus der Hubsäule, um das Gegengewicht das in der Hubsäule verfahrbar ist, darzustellen;
• 3 die Umlenkeinrichtung für den Kettenzug, zur Führung des Kettenzugs in der Hubsäule.

The invention is explained in more detail below by way of example with the aid of the drawings. It shows

• 1 the loading device in a perspective view;
• 2 a breakout from the lifting column to show the counterweight that can be moved in the lifting column;
• 3 the deflection device for the chain hoist, for guiding the chain hoist in the lifting column.

The loading device 1 comprises a lifting column 3, which is hollow, and which is on the chassis 11 stores. In addition, there are each a cantilever arm on the two opposite broad sides of the lifting column 3 5a , 5b arranged, which can be moved independently of one another in height on the lifting column. A lifting table is mounted on each of the cantilever arms 7a , 7b , whereby each lifting table has a cloth puller 9 records. On the cloth stripper 9 store the dough pieces, which are deposited on the hearth strips by the cloth pulling devices. Each cantilever arm 5a , 5b with the lifting table arranged on it 7a , 7b and the corresponding cloth puller 9 is by a chain hoist 15th with a counterweight 13th connected to the cantilever arms, even when the cloth puller is fully loaded 5a , 5b to be able to move along the lifting column 3 in order to finally bring it to a height that makes it possible to place the dough pieces on the corresponding oven strip. Part of the chain hoist 15th is a deflection device 19th that allows the counterweight 13th to be stored in the lifting column 3 variable in height.

The lifting column has locking cams that are arranged one above the other 17th on that in connection with a resilient on the cantilever arm 5a , 5b arranged spring stopper (not shown) the cantilever arm 5a , 5b Hold in the selected position while the dough pieces are being deposited using the cloth pulling devices.

In summary, it should be noted that the procedure for allocating the hearth strips is such that the two lifting tables are moved to their working height with the corresponding cloth pulling devices, are covered with dough pieces and then either the left or the right cloth pulling device is manually moved to the corresponding loading height, and the right or left focal zone is occupied accordingly. The loading device is then placed laterally on its own chassis by the distance between the two lifting tables 11 Move in front of the oven until the other lifting table is in line with the other hearth strip and can also be loaded. The dough pieces are loaded relatively quickly, so that the dough pieces cannot burst through cracks in the swath.

List of reference symbols

1

Loading device

2

Lifting column

5a

Cantilever

5b

Cantilever

7a

Lift table

7b

Lift table

9

Cloth puller

11

chassis

13th

Counterweight

15th

Chain hoist

17th

Locking cams

19th

Deflection device

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was 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.

Patent literature cited

• DE 102005005986 A1 [0004]
• WO 2007/051645 A2 [0005]
• DE 202020101530 U1 [0009]

Claims (9)

Loading device (1) for an oven with a vertically aligned lifting column (3) for receiving at least two lifting tables (7a, 7b), each lifting table (7a, 7b) having a cloth removal device (9), characterized in that the lifting column (3 ) receives at least one lifting table (7a, 7b) along the lifting column (3) so that it can be moved independently of one another on two opposite sides. Loading device (1) after Claim 1 , characterized in that each lifting table (7a, 7b) is coupled to a counterweight (13). Loading device (1) after Claim 2 , characterized in that the counterweight (13) is arranged on the lifting column (3). Loading device (1) according to one of the preceding claims, characterized in that the lifting table (7a, 7b) can be connected to the lifting column (3) in a latchable manner. Loading device (1) according to at least one of the Claims 2 until 4th , characterized in that the lifting column (3) for receiving the counterweights (13) is hollow. Loading device (1) according to one of the preceding claims, characterized in that the lifting column (3) is arranged on a chassis (11). Loading device (1) according to one of the preceding claims, characterized in that the cloth pulling device (9) is arranged displaceably on the lifting table (7a, 7b). Loading device (1) according to one of the preceding claims, characterized in that the lifting table (7a, 7b) is connected to the lifting column (3) by at least one cantilever arm (5a, 5b). Loading device (1) according to one of the preceding claims, characterized in that the lifting column (3) has locking cams (17) arranged one above the other, which can be brought into locking connection with the respective cantilever arm (5a, 5b).

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