EP1945036A2

EP1945036A2 - Oven system comprising an automatic withdrawing or baking trolley

Info

Publication number: EP1945036A2
Application number: EP06840926A
Authority: EP
Inventors: Thomas Heuft
Original assignee: Karl Heuft GmbH
Current assignee: Karl Heuft GmbH
Priority date: 2005-11-04
Filing date: 2006-11-06
Publication date: 2008-07-23
Also published as: DE102005052709A1; WO2007051645A2; WO2007051645A3

Abstract

The invention relates to a withdrawing or baking trolley (1) comprising a frame (10) and a plurality of withdrawing devices (20) which are fixed to the frame on top of each other similar to tiers. Said withdrawing devices are designed such that the same can be automatically retracted and deployed. The invention further relates to an oven system (100), a withdrawing trolley feeding system comprising such a withdrawing or baking trolley (20), and an unloading mechanism for a withdrawing trolley.

Description

Baking oven system with automatic puller or baking oven

1. Technical area

The present invention relates to a baking oven system for baking baked goods, in particular a baking oven system with a radiator Steinplattenwagenofen for bakeries.

2. State of the art

Radiators are known in the art in which plate-shaped heating elements - so-called radiators - protrude into the baking chamber. In this type of oven, the baked goods to be baked are on baking trays or in baking molds which are arranged in the form of a tier on a rollable trolley. To bake the baked goods, the dough pieces are first placed on the individual baking trays. These baking trays are then inserted into the trolley, which is then inserted to the actual baking of the baked goods in the baking chamber of the kiln. After closing the oven door, the baking program is started. The baking process now runs programmatically. After its completion, the oven door can be opened to remove the finished baked goods and the trolley be moved out of the car oven. To cool the baked goods remain on the trolley or be taken down by him.

In the German Utility Model DE 20 2004 001 473 Ul of the same applicant a stone slab car is further proposed, with which a radiator kiln can be converted into a stone slab oven. For this purpose, a baking tray is inserted with stone plates arranged like a tile in the baking chamber of the radiator kiln. The baked goods are then baked directly on the stone slabs. After the baking process, the flagstone car with the hot stone plates usually remains for further baking in the oven. The finished bakery products are pulled by means of a slider onto a bakery cart, where they can be cooled or transported for further processing.

The raw baked goods, so-called dough pieces, can, as described in DE 20 2004 001 473 Ul, be placed on the stone slabs by means of a puller carriage. The puller carriage has a plurality of extendable, floor-level arranged peelers, which are each covered with the dough pieces. Each stripping apparatus comprises a conveyor belt of cloth material which spans substantially the entire area of the stripping apparatus.

The puller carriage is moved up to the open oven and inserted by the dough pieces peelers by hand individually inserted into the oven so that they are located on the corresponding stone slabs. Then, the movement of the conveyor belt is manually activated, i. set the conveyor belt with respect to the frame of the puller carriage and pulled the individual Abziehapparate back out of the oven. During this movement, the dough pieces, as they were arranged on the appropriate peeling apparatus, placed on the stone slabs of Steinplattenwagens.

Once all the peelers have been pulled out of the oven and all the dough pieces have been placed in the oven, the puller carriage can be moved away, the oven door closed and the baking program started.

Despite the simplification of placing dough pieces in a flagstone car- bon oven through such a puller carriage, insertion is still time consuming because usually the pullers are successively pushed one at a time into the oven and pulled out. The introduction time but should be kept as short as possible, on the one hand a high throughput of the baking system to achieve and on the other hand to avoid excessive cooling of the oven. Furthermore, the temperature of the bakery increases due to the open oven door, which is disadvantageous for the bakers.

Furthermore, this manual operation of introduction is dependent on the weight of the dough pieces, e.g. with heavy bread dough pieces, for the baker power-consuming and thus tiring.

A similar problem arises in the removal of the finished baked goods from the baking chamber of the oven. Again, the removal time should be shortened as possible and the effort required for the baker as possible minimized. This is especially important in larger plants with a large number of ovens and a high throughput.

Furthermore, in state-of-the-art equipment, the bakery trolleys are still manually unloaded by hand and reloaded onto conveyor systems for further processing (spraying, dusting, packaging, etc.). This is also very time consuming and requires a lot of effort.

It is therefore the object of the present invention to overcome the above-mentioned disadvantages of the prior art, in particular to improve the introduction and removal process of dough pieces in the oven in terms of Einbringzeit and the effort, to accelerate the loading process of the puller and reloading to optimize the finished baked goods on conveyor systems for further processing.

3. Summary of the invention

The above-mentioned objects are achieved by a puller according to claim 1, a baking oven system according to patent claim 8, a puller-Wagenspeungssytem according to claim 13, and by a puller carriage unloading device according to claim 16. - A -

In particular, the above-mentioned object is achieved by a puller, comprising a frame and a plurality of peeling apparatus, which are fixed to each other like a pile on the frame; The peel-off devices are designed so that they can be automatically retracted and extended.

Thus, the introduction process of the dough pieces in the oven and the removal process of the baked goods from the oven is automatically carried out and thus shortened. Due to the short introduction time, especially when all the peelers are retracted or extended simultaneously, a high throughput of the system is achieved. At the same time, a cooling of the oven is avoided, which saves energy and leads to a lower room temperature in the bakery. The baker is further relieved of his tedious manual activity of loading and unloading the dough pieces or baked goods in and out of the oven. When automated retraction and extension of the peelers no manual effort of the baker is more necessary, it is purely mechanical or automated.

Preferably, the peelers are both individually and collectively automated and retractable. To prove the peelers, it is advantageous to retract the already occupied peelers individually again in the puller or Ausbackwagen to comfortably occupy another, empty peeling apparatus from above. It may also be desirable to load only individual floors of a baking cart or to take baked goods there, for example, when baking different baked goods in an oven or on a baking tray.

In a further preferred embodiment, the puller or Aus- back cart further comprises a coupling device for transmitting mechanical energy to the puller or Ausbackwagen. The coupling device tion is the power transmission from an external drive on the Abzieherbzw. Ausbackwagen.

Preferably, the puller or Ausbackwagen an electric, hydraulic see or pneumatic Abzieherwagenantrieb for automated retraction and extension of Abziehapparate on. Each Abzieher- or Ausbackwagen can also be equipped with its own drive to move the Abziehapparate or extend.

hi another preferred embodiment, the puller or Ausbackwagen continues to have a separate drive carriage, comprising a puller drive for automated retraction and extension of Abziehapparate. Thus, a common drive carriage is provided for a variety of puller and Ausbackwagen and ovens, which reduces the cost of the system.

The drive carriage preferably has a coupling device for transmitting mechanical energy to the puller or baking machine.

Preferably, the drive carriage on a scissor mechanism, for extending and retracting the Abziehapparate.

The abovementioned objects are also achieved by a baking oven system comprising at least one of the abovementioned puller carriages, at least one oven, and at least one puller carriage drive arranged on or in front of the oven for automated retraction and extension of the pullers. In this embodiment, the puller or Ausbackwagen need not have their own drive, but are driven by a puller drive on the oven. The individual puller or Ausbackwagen are thus lighter and cheaper than those with built-in drive. In a preferred embodiment, the oven has a door and the puller carriage drive is movable into and out of the swiveling range of the door. The puller carriage drive itself is arranged movably on the oven since the puller or baking machine according to the invention can thus have the height of conventional baking carriages and nevertheless drive the peelers.

Preferably, the Abzieherwagenantrieb is mounted above the door of the oven and can be pivoted to open the door either upwards, be moved linearly upwards or linearly moved to the right or left.

In a further embodiment, the oven system has a plurality of ovens and a common Abzieherwagenantrieb for all ovens, the Abzieherwagenantrieb is mounted longitudinally displaceable along the ovens. Thus, a puller carriage drive can be used for multiple ovens, which is more cost effective and increases reliability.

Preferably, the puller carriage drive is attached directly to the ovens or positioned at a distance from the ovens. The common puller carriage drive can be arranged both directly on the ovens, or be spaced from the ovens and thus be stored independently.

The above objects are also achieved by a puller truck loading system for feeding puller cars comprising at least one of the above-mentioned puller cars and a feed station having a puller carriage drive. Thus, the feed of the puller or Ausbackwagen done with doughs fully or partially automatically. This saves loading time and the previously purely manual loading process can be fully automated. Preferably, the loading station has a coupling device for transmitting mechanical energy to the puller or baking machine.

In a further preferred embodiment, the puller carriage feed system further comprises a support carriage which supports the pullers in the extended state.

The above-mentioned objects are also achieved by a puller truck unloading apparatus suitable for automated unloading of puller carriages, comprising at least one containment means adapted in height for receiving baked goods from the respective puller carriages of the puller carriage. The puller carriage unloading device serves to automate and speed up the unloading process of the finished baked goods.

In a first preferred embodiment, the engagement means comprises a helical chute whose pitch is adapted to the height of the peelers and which has a plurality of bypass areas located at the level of the peelers.

Preferably, the receiving means further comprises in front of each bypass area on a conveyor belt to promote baked goods on the shuttle.

In a further preferred embodiment, the receiving means on a portal system, which has a movable in height conveyor belt for receiving baked goods from the Abziehapparaten.

Preferably, the puller carriage unloading device further comprises an electric, hydraulic or pneumatic puller carriage drive for automated retraction and extension of the pullers. Preferably, the puller carriage drive has a coupling device for transmitting mechanical energy to the puller or baking machine.

The above objects are also achieved by a puller truck unloading system for unloading puller cars comprising at least one of the above-mentioned puller cars and one of the above puller truck unloaders.

Further preferred embodiments emerge from the subclaims.

4. Brief description of the drawing

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. It shows:

Fig. 1 is a three-dimensional view of a puller and Ausbackwagens according to the present invention;

FIG. 2 shows a three-dimensional illustration of the puller or baking-out carriage from FIG. 1 with the pull-off devices extended and filled with baked goods; FIG.

3 shows a three-dimensional representation of a baking oven system according to the invention, comprising an oven and a puller or baking machine;

4 shows a three-dimensional representation of the oven system according to FIG. 3, wherein the puller or baking machine is coupled to the puller carriage drive of the oven for automated retraction and extension of the pullers; 5 shows a three-dimensional representation of a further embodiment of a baking oven system;

FIG. 6 shows the baking oven system from FIG. 5, wherein the puller or dipper carriage is coupled to the puller carriage drive of the oven;

7 shows a three-dimensional view of a further embodiment of a baking oven system with puller carriage drive;

Figure 8 shows the oven system of Figure 7, wherein the puller carriage drive is shown in a different position.

9 shows a plan view of a further embodiment of a baking oven system, wherein the puller carriage drive is positioned at a distance from the ovens;

10 shows a three-dimensional detail view of a baking oven system according to the invention, for illustrating the power transmission of the puller carriage drive to the puller or baking machine;

Fig. 11 is a three-dimensional detail view of a Abzieherbzw invention. Ausbackwagens, to clarify the Tucharretierung;

FIGS. 12A to 12D show three-dimensional views of a baking oven system according to the invention for clarifying the automated removal process;

13A to 13C are three-dimensional views of a puller carriage loading system according to the invention and the sequence of the loading operation; Fig. 14 is a three-dimensional view of a first embodiment of a puller carriage unloading system according to the invention with a puller carriage unloading device;

Fig. 15 is a plan view of the puller carriage unloading system of Fig. 14;

16 shows a three-dimensional view of a further embodiment of a puller carriage unloading system according to the invention with puller carriage unloading device;

Fig. 17 is a three-dimensional view of the puller carriage unloading system of Fig. 16 in a different position;

18 shows a three-dimensional view of an embodiment of a drive carriage for automated retraction and extension of the removal apparatuses;

19 is a side view of the use of the drive carriage of Figure 18.

5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the invention will be described below with reference to the figures.

Figure 1 shows a first preferred embodiment of a puller or Ausbackwagens 1. The puller or Ausbackback 1 comprises a frame 10 which is freely movable by means of castors 60. The puller or Ausbackwagen 1 serves to bring raw dough pieces 5 in a baking oven 110, ie store it on the baking sheets or stone plates 114. The stone plates 114 are preferably arranged on a stone slab 140 (see FIG. 19) which can be selectively moved in or out of the oven 110. After the dough pieces 5 have finished baking, the puller 1 serves to finish the process Baked baked goods 6 to remove from the oven 110 by being absorbed by the baking sheets or stone plates 114.

For these purposes, the puller 1 has a plurality of peelers 20 stacked on top of each other, such as the six peelers 20 shown in Figure 1. The peelers 20 are covered with a belt-like blanket 30 which makes the dough pieces 5, respectively Baked goods 6 receives.

The peeling apparatuses 20 are fastened by means of rails 16 to the frame 10 of the puller or baking cart 1 in such a way that they can be almost completely extended to one side as shown in FIG. In this case, the movement of the cloth 30 with respect to the peeling apparatus 20 can be switched on or off. For this purpose, a locking rod 44 is attached to each cloth 30, which can be hung on a locking plate 14 of the frame 10, as shown in detail in Figure 11. If the locking rod 44 is hung in the locking plate, the cloth 30 is locked relative to the frame 10. If the removal apparatus is now extended or retracted, the cloth 30 is locked relative to the frame 10 so that it moves relative to the respective removal apparatus 20. This means that when retracting the Abziehapparates 20, the dough pieces 5 quasi remain stationary and thus stored orderly on the baking sheet or the stone plate 114 of the furnace 110, while the Abziehapparat 20 moves out below them from the oven 110.

In a similar manner, the removal of the finished baked goods 6 from the oven 110 is done. The cloth 30 of the Abziehapparate 20 is in turn locked by the Arretierungsstange 44 and retracted into the baking chamber of the oven 110 such that the Abziehapparat 20 directly above the baking sheet or the Stone plate 114 is located. When retracting the Abziehapparates 20 again moves the cloth 30 with respect. The movement of the Abziehapparates 20, takes the front edge of the finished baked goods 6 and pulls them on the Abziehapparat 20th When the stripping apparatus 20 is fully retracted into the baking chamber of the oven 110, all the baked goods 6 are on the cloth 30 of the peeling apparatus 20. Then the anchoring of the Arretierungsstange 44 is released from the Arretierungsblech 14 so that no cloth movement of the cloth 30 with respect Removal apparatus 20 more. When retracting the Abziehapparate 20 thus the baked goods 6 remain on the Abziehapparaten 20th

The puller or Ausbackwagen invention is designed so that the Abziehapparate 20 automatically on and can be extended. For this purpose, the peelers 20 are mechanically connected to a puller carriage drive 120, which can be arranged either directly on the puller or baking oven 1 or is located outside of it.

The case of an external puller carriage drive 120 is shown in Figs. 1-10. As seen in Figures 3 and 4, a puller carriage drive 120 is mounted over the door 112 on the oven 110. The puller carriage drive 120 has a coupling device 150 which transmits a force to a coupling device 50 of the puller 1 in any mechanical manner. In the illustrated embodiment, both the coupling device 50 and the coupling device 150 are shown as a gear, which are adapted to each other to transmit a rotational movement, as seen in Figures 4, 6 and 10. However, the coupling devices 50, 150 may have any other forms of releasable couplings. Positive clutches are preferred, but suitable friction clutches may also be used.

The movement of the coupling device 50 is suitably converted into an inward or outward movement of the peelers 20 in a mechanical manner. A possible transmission of a rotational movement from the coupling device 50 to an inward and outward movement of the peeling apparatuses 20 takes place, for example, via rotatable rods (not shown) which are mounted in the frame 10, and are connected by gimbals or gears. Thus, for example, threaded rods 54 can be driven, which then move two driving beams 52 parallel to the sides of the puller or baking carriage 1. Other power transmission options such as via belt drives, scissors gear, chain drives, etc. are of course possible.

For retracting or extending the Abziehapparate 20, they are then suitably connected to the driving beam 52 and locked to it. By selectively connecting the peeling apparatuses 20 to the driving beam 52, the peeling apparatuses 20 to be moved can be selected. The connection of the peelers 20 to the two driving beams 52 is preferably done manually, so that the operator can also manually retract and extend the peelers, if he so desires. An automatic connection or release is also possible, for example by suitable servo motors or solenoids.

By simply reversing the direction of movement of the puller carriage drive 120, the direction of movement of the peelers 20 can also be changed.

Not shown in detail in the figures, but by the present invention mitumfasst is the ability to fasten the puller drive directly to the puller or baking-1, or integrate. Such a puller carriage drive may be operated electrically, hydraulically, pneumatically or otherwise, with an electric drive being preferred. In this case, of course, no mechanical coupling device 50 is necessary, but possibly an electrical plug connection (not shown) for the transmission of electrical energy to the puller or Ausbackwagen. 1

FIGS. 3 and 4 show a first embodiment of a baking oven system 100 with a puller carriage drive 120, which is fastened directly to the oven 110. The puller carriage drive 120 has a prismatic housing 122, that facilitates the coupling of the puller or Ausbackwagens 1 to the puller carriage drive. The frame 10 of the puller or baking cart 1 has a correspondingly shaped coupling region 12 at the front upper edge. When approaching the puller or Ausbackwagens 1 to the furnace 110 thus the puller or Ausbackwagen 1 is self-centering and a frictional connection between the coupling device 150 of the puller carriage drive 120 and the coupling device 50 of the puller or baking truck 1 is made as seen in Figure 4.

As shown in FIG. 3, in a first embodiment, the puller carriage drive 120 can be pivoted upwardly about a pivot axis 124 parallel to the front edge of the furnace 110, so that the puller carriage drive 120 moves into the pivot region of the door 112 of the oven and out of the pivoting range of the door 112 is movable out. If the puller carriage drive 120 is in its upwardly pivoted position shown in FIG. 3, the door 112 of the oven 110 can be opened and closed. By the possibility of movement of the puller carriage drive 120 puller or Ausbackwagen 1 can be used with a height corresponding to the height of conventional puller or Ausbackwagen. Thus, the usual storage or cold rooms for loaded with doughs 5 puller or Ausbackwagen 1 continue to be used.

FIGS. 5 and 6 show a second embodiment of an oven system 100, in which the puller carriage drive 120 is likewise fastened to the oven 110 and can be moved linearly up and down. For this purpose, the puller carriage drive 120 is fastened to a holder 128. FIG. 5 shows the puller carriage drive 120 in the upper position, in which the pivoting area of the door 112 is released, so that it can be opened and closed.

After opening the oven door 112, the puller carriage drive 120 is moved downwards and the puller or baking oven 1 is brought to the oven 110. moved and engaged with the puller carriage drive 120 as seen in FIG. The prismatic housing 122 of the puller carriage drive 120 directs the correspondingly shaped coupling portion 12 of the puller or baking cart 1 into the correct position. In this case, the coupling device 50 of the puller carriage 1 engages with the coupling device 150 of the puller carriage drive 120, so that the puller carriage drive 120 can automatically engage and disengage the pullers 20.

After all the peeling apparatuses 20 with the dough pieces have automatically retracted into the baking chamber of the oven 110 and the dough pieces 5 have been deposited on the flagstones 114 of, for example, a Steinplattenwagens (not shown) during automatic retraction of the peelers 20 from the oven 110, the puller carriage drive is deposited 120 linear move up and the door 112 can be closed to start the baking process.

FIGS. 7 and 8 show a further embodiment of a baking oven system 100, which may have a plurality of ovens 110. In the illustrated embodiment, the oven system 100 has four juxtaposed ovens 110. Furthermore, the oven system 100 has a common for all ovens 110 puller carriage drive 120 which is mounted on a rail 126 linearly displaceable above the doors 112 of the ovens 110. The puller carriage drive 120 is linearly movable to the right or left to release the respective pivoting areas of the doors 112 so that they can be opened. Thereafter, the puller carriage drive 120 moves to the oven to be loaded or unloaded, so that a puller or baking oven 1 can be coupled to it in order to automatically introduce dough pieces 5 into the oven 110 or ready-baked baked goods 6 are automated from the respective oven 110 to remove.

FIG. 9 shows a further embodiment of a baking oven system 100, in which a plurality of ovens 110 have a common puller carriage drive 120. The puller carriage drive 120 is spaced apart from the ovens 110 and can be moved linearly to the right or left, as indicated by the arrows 136. In this embodiment, the puller carriage drive 120 is fastened, for example, to a raised rail 132 of a rail system 130. Along this rail 132, the puller carriage drive 120 can preferably be moved linearly to the right or left in front of each oven 110 of the oven system 100 by means of an electric drive in order to drive a puller or baking oven 1, as described above.

Since the puller carriage drive 120 is positioned at a distance in front of the ovens 110, it does not have to be moved away from the respective ovens 110 to open the doors 112, since it does not obstruct the pivoting range of the doors 112. However, for this embodiment, a puller 1 is required in which the puller apparatuses 20 can be automatically retracted and extended on the side opposite to the coupling device 50. This means that the puller apparatuses do not extend on the side of the coupling device 50, as shown in FIG. 2, but on the opposite side.

FIGS. 12A to 12D show in a sequential manner how the dough pieces 5 are automatically introduced into the baking chamber of the oven 110 by means of the puller or baking cart 1 according to the invention. FIG. 12A shows how the puller 1 with the dough pieces 5 has moved up to the opened baking chamber of the oven 110, the puller carriage drive 120 being in its lower position, so that the coupling device 50 and the coupling device 150 engage with each other Get engaged. Then, the mechanism for retracting the peelers 20 is switched so that all the peelers are moved together. In the illustrated embodiment, all the peelers 20 are coupled to the cam bars 52. Then the puller carriage drive 120 is turned on and the follower bars 52 move the pullers 20 together into the baking chamber of the oven 110, as shown in FIG. 12B. In this case, the puller carriage drive 120 rotates in a first direction. A movement of the cloth 30 with respect to the Abziehapparate 20 does not take place.

After complete retraction of the peelers 20 into the baking chamber of the baking tray 110, the locking bars 44 of the peelers 30 engage the detent plates 14 of the puller 1, thus preventing relative movement of the wipers 30 of the peelers 20 with respect to the frame 10 of the puller As shown in FIG. 12C, the puller carriage 120 is now switched in an opposite second direction of movement in order to move the pullers 20 out of the oven. During this movement, since the wipes 30 of the peelers 20 are held quasi stationary by the locking rods 44, the wipes 30 move relative to the peeling apparatuses 20 and the dough pieces 5 are moved to the stone plates 114 of the stone tile carriages 140 with the predetermined amount as the peelers 20 are pulled out Distance stored.

FIG. 12D shows the state after the strippers 20 are completely pulled out of the oven 110. Then the puller carriage drive 120 is stopped and the puller or baking oven 1 is moved away. The puller carriage drive 120 may then be pivoted upwardly, moved upwardly, or moved sideways to clear the pivoting range of the open door 112. Subsequently, the door 112 is closed to start the baking process.

The automated puller or Ausbackwagen 1 but not only allows an automated introduction of the dough pieces 5 in the oven of a baking oven 110, but also the automated removal of the baked baked goods 6 from the baking sheets or stone slabs 114. For this purpose, the puller or off - Baking vehicle 1 after baking moved up to the open oven and the puller carriage drive 120 is turned on so that the Abziehapparate 20th Preferably be retracted together with locked cloth movement in the oven. Since the cloth movement with respect. The puller or Ausbackwagens 1 is held, the baked goods are 6 ordered pulled on the cloth 30 of the peelers 20 when inserting the peelers.

Are all baked goods 6 on the respective Abziehapparaten 20, the cloth movement is released with respect. Of the puller or Ausbackwagens 1 and the Abziehapparate fed back into the puller or Ausbackwagen 1. In this case, the baked baked goods remain 6 on the Abziehapparaten 20th

FIGS. 13A to 13C show a puller carriage loading system 200 which serves to more easily and quickly load dough pieces 5 on the pullers 20 of a puller 1. The puller carriage loader system 200 in the illustrated embodiment consists of a loading station 210 with a gantry-shaped frame 212 to which is attached a puller carriage drive 220 having a coupling device 250 engageable with the coupling device 50 of the puller carriage 1 , Furthermore, a support carriage 230 is provided, which supports the extended peelers 20 during the Belegevorgangs. The support carriage 230 is rollable and has a frame 232 on which support members 234 are mounted so as to support the pulled-off peeling apparatuses 20 from below.

To fasten the puller or baking cart 1, it is moved up to the loading station 210 so that its coupling device 50 engages with the coupling device 250 of the puller carriage drive 220. From the other side of the loading station 210, the support carriage 230 is moved up, so that the support elements 234 reach under the ends of the peelers. Then the Abzieherwagenantrieb 220 is turned on and thus the Abziehapparate 20 together and automatically moved out of the frame 10 of the puller or Ausbackwagens 1. Upon retraction, the support carriage 230 supports the forward ends of the peelers 20. The support carriage 230 is pushed by the peelers 20 away from the loading station 210, as shown in Figure 13C. Then the uppermost peeling apparatus 20 can be covered with dough pieces 5, wherein the support carriage 230 absorbs the high forces that can occur when depositing the dough pieces 5 on the Abziehapparaten 20. When the uppermost peeling apparatus 20 is completely occupied with dough pieces 5, it is returned to the frame 10 by the removal carriage drive 220, or manually by the operator. Then the next uppermost peeling apparatus 20 can be covered with dough pieces 5 until the desired peeling apparatuses 20 are occupied.

Once the loading process has been completed, the puller 1 can be moved away from the loading station 210, with the coupling device 50 being separated from the coupling device 250 and the support carriage 230 being separated from the removal devices 20.

FIGS. 14 and 15 show a first embodiment of a puller carriage unloading system 400 with a puller carriage unloading device 402. The puller carriage unloading device 402 consists in the illustrated embodiment of a receiving means 410 in the form of a spiral chute 410, which is coiled so that it is adapted in height to pick up baked goods from the respective Abziehapparaten 20 of the puller or Ausbackwagens 1 , As shown in FIG. 14, the spiral chute 410 has an increase adapted to the height of the strippers 20. Furthermore, it has a plurality of inclined in the direction of the spiral chute 410 by-pass areas 412, which are arranged one above the other, so that the Abziehapparate 20 can pass over them during extension. The spiral chute 410 opens at the bottom into a conveyor belt 440, which in its further course merges into a conveyor belt 442. In addition, the puller carriage unloading device 402 preferably has a conveyor belt 430 in front of each bypass area 412, which can convey baked goods 6 onto the bypass areas 412 of the spiral chute 410. On the puller carriage unloading device 402, a puller carriage drive 420 is provided, which is fastened to a portal-shaped frame 432 in order to automatically move in and out the pullers 20 of the puller or baking cart 1. FIG. 15 is a plan view of the puller carriage unloading apparatus 400 shown in FIG.

The puller carriage unloading system 400 serves to automatically unload the finished baked goods 6 on the puller or baking oven 1 onto the conveyor belt 440. For this purpose, the puller or baking-out carriage 1 is moved up to the puller carriage drive 420, whose coupling device 425 engages with the coupling device 50. Then, the puller carriage mechanism is switched so that the puller carriage drive 420, the peelers 20 are first extended over the conveyor belts 430 and then withdrawn to place the baked goods 6 on the conveyor belts 430.

When these are occupied, the conveyor belts 430 are driven to convey the baking items 6 to the bypass areas 412 of the spiral chute 410. Depending on the width of the conveyor belts 430, the discharge process described above is repeated several times, preferably four times, until the removal devices are completely unloaded.

The bypass areas 412 and the helix of the spiral chute 410 are inclined so that the baked goods 6 slide down the helical chute 410 solely by their weight force and reach the conveyor belt 440. The length of the helix of the helical chute 410 is designed so that the finished baked goods can be unloaded simultaneously from each dispenser 20 without blocking each other. However, it is also possible to unload each peeling apparatus 20 successively onto the spiral chute 410. So that the bakery products 6 slide down easily and simply on the spiral chute 410 due to their wiping force, this consists of round rods which are arranged in the spiral direction. This results in little friction between the O berfläche of the spiral chute 410 and the baked goods 6. The conveyor belt 440 then asks the bakery products 6 for their further treatment, for example to a spray system to spray bread with water.

By the puller carriage unloading system 400, it is possible to unload a puller or Ausbackwagen 1 automatically and especially particularly fast, so that the finished baked goods 6 get as hot as possible for aftertreatment.

In another embodiment of the puller carriage unloader 402 (not shown), the portal 432 with the puller carriage drive 420 is located directly in front of the bypass areas 412 of the helical chute so that no conveyor belt areas 430 are necessary. It is also possible to arrange the bypass areas 412 on another side of the spiral chute 410 so that the puller or baking machines 1 can be moved in a different direction to the puller carriage unloading device 400.

FIGS. 16 and 17 show a further embodiment of a puller carriage unloading system 400. In this embodiment, the puller carriage unloading system 400 comprises a puller carriage unloading device 404 having a portal system 450 as a picking means, with a height adjustable conveyor belt 460 for receiving baked goods 6 from the picking apparatuses 20. Also in this embodiment, the picker carriages Discharge device 404 has a puller drive (not shown), which can pull in and pull off the removal devices 20 via the conveyor belt 460. In this case, the mechanism of the Abziehapparate 20 is switched so that only one Abzugsapparat 20 off or retracted, the other Abziehapparate 20 are not driven. Switching the Abziehapparate to be moved 20th can be done manually or automatically. An automatic switching has the advantage that no operator is necessary to unload the puller or Ausbackwagens 1.

For unloading d, he baked goods 6 from the peeling machines 20, the conveyor belt 460 is driven just below the height of the corresponding Abziehapparates 20 and then the Abziehapparat 20 extended over the conveyor belt 460 and then retracted to place the baked goods 6 on the conveyor belt 460.

Then, the conveyor belt 460 moves down to the position shown in FIG. The conveyor belt 460 is thus at the same height as the conveyor belt 440. Then, the conveyor belt 460 and the conveyor belt 440 is driven and the finished baked goods 6 are transferred from the conveyor belt 460 onto the conveyor belt 440, which conveys the baked goods 6 for further processing.

In the embodiment illustrated in FIGS. 16 and 17, the individual peeling devices 20 of the puller or baking cart 1 are automatically unloaded one behind the other.

Although the illustrated puller carriage unloading systems 400 each have pullers. Include baking-1, the Abziehapparate 20 are automatically retractable and retractable, they can also be used with ordinary Ausbackwagen. In this case, the unloading process is not fully automatic, since here a baker has to push the baked goods 6 onto the puller carriage unloading device 402, 404. Nevertheless, this process is much more effective and time-saving compared to a removal without unloading.

FIGS. 18 and 19 show an embodiment of an external puller carriage drive. In this embodiment, the puller carriage drive consists of a separate drive carriage 300 which, as shown in FIG. 19, is moved up to a puller or Ausbackwagen 1 to the drawers of the puller or Ausbackwagens 1 automatically on and extend.

Drive carriage 300 preferably includes a moveable frame 320 and a puller carriage drive (not shown) that may be configured similar to puller carriage drives 120, 220, or 420 described above.

However, as shown in FIG. 18, in another embodiment, the puller carriage drive of the drive carriage 300 may be equipped with a scissors mechanism 310 that can horizontally extend a ladder-type coupling device 350. This coupling device 350 pushes or pulls the individual peeling devices 20 out of the puller 1.

As with the puller carriage drives 120, 220 and 420 shown above, the puller carriage drive can be electrically, hydraulically or pneumatically operated.

FIG. 19 shows how an operator 8 has moved the drive carriage 300 to a puller or baking oven 1, which has moved up to a stone slab 140, which is located, for example, in the baking space of a baking oven (not shown).

The loading process now proceeds as follows. The operator 8 turns on the puller carriage drive of the drive carriage 300, whereby the scissor mechanism 320 moves the coupling element 350 forward. Characterized the Abziehapparate 20 are pushed with the dough pieces (not shown) on the stone plates 114 of Steinplattenwagens 140.

If the peeling apparatuses 20 are completely moved out of the puller or baking oven 1, ie they have moved completely into the baking chamber of the oven, the cloths 30 of the peelers 20 are deformed as described above. advantage. Thereafter, the drive carriage 300 pulls the Abziehapparate 20 back into the puller or Ausbackwagen 1, the dough pieces are stored on the stone plates 114 of Steinplattenwagens 140 ordered.

The use of a drive carriage 300 has the advantage that neither the puller or baking oven 1 nor the respective ovens 110 puller carriage drives must be provided. The system is thus very flexible and can be used without further installations with existing ovens or baking systems.

It is understood that individual elements of the different embodiments described above may be combined with other elements of other embodiments, although not explicitly described.

LIST OF REFERENCE NUMBERS

1 puller or Ausbackwagen

5 dough pieces

6 ready baked goods

10 frame 12 coupling area

14 locking plate

16 rails

20 peelers

30 cloth 44 locking rod

50 coupling device

52 driving beam

54 threaded rods

60 swivel castors 100 oven system

110 Oven 112 oven door

114 baking sheets or stone slabs

120 puller carriage drive

122 prismatic housing 124 pivot axis

126 rail

128 retainer

130 rail system

132 raised rail 136 arrows

140 flagstone cars

150 coupling device

200 puller truck loading system

216 feed station 212 frame

220 puller carriage drive

250 coupling device

230 support car

232 Frame 234 support elements

300 drive cars

310 scissor mechanism

320 mobile frame

350 coupling device 400 puller carriage unloading system

402, 404 Pulling carriage unloading device

410 hanger, spiral chute

412 bypass areas

420 puller carriage drive 430 conveyor belt

432 frames 440, 442 Conveyor 450 Portal system 460 Conveyor belt

Claims

claims

1. puller or Ausbackwagen (1), comprising

a) a frame (10); and

b) a plurality of peeling apparatuses (20), which are fixed to one another like a pile on the frame (10); in which

b) the Abziehapparate (20) are designed so that they can be automatically retracted and extended.

2. puller or Ausbackwagen according to claim 1, wherein the Abziehapparate (20) both individually and jointly automated on and extendable.

3. puller according to one of claims 1 or 2, further comprising a coupling device (50) for transmitting mechanical energy to the puller or Ausäckwagen (1).

4. puller or Ausbackwagen according to one of claims 1 - 2, further comprising an electric, hydraulic or pneumatic Abzieherwagenantrieb for automated retraction and extension of Abziehapparate (20).

5. puller or Ausbackwagen according to one of claims 1-3, further comprising a separate drive carriage (300), comprising a puller drive for automated retraction and extension of Abziehapparate (20).

6. puller or Ausbackwagen according to claim 5, wherein the drive carriage (300) has a coupling device (350) for transmitting mechanical energy to the Abzieher- or Ausbackwagen (1).

7. puller or Ausbackwagen according to one of claims 5 or 6, wherein the drive carriage (300) has a scissors mechanism (320), for extending and retracting the Abziehapparate (20).

8. Oven system (100), comprising

a) at least one puller or Ausbackwagen (20) according to any one of claims 1-3;

b) at least one oven (110), and

c) at least one on or in front of the oven (110) arranged puller carriage drive (120) for automated retraction and extension of Abziehapparate (20).

9. Baking oven system according to claim 8, wherein the oven (110) has a door (112) and the puller carriage drive (120) in the pivoting range of the door (112) and out of the pivoting region of the door (112) is movable out.

10. Baking oven system according to claim 9, wherein the puller carriage drive (120) above the door (112) of the oven (110) is mounted and to open the door (112) either:

a) can be pivoted upwards; or

b) can be moved upwards linearly; or c) can be moved to the right or left.

11. Baking oven system according to one of claims 8 or 9, comprising a plurality of ovens (110) and a common Abzieherwagenantrieb (120) for all

Ovens (110), wherein the puller carriage drive (120) along the ovens (110) is mounted longitudinally displaceable.

12. Baking oven system according to claim 11, wherein the puller carriage drive (120) is attached directly to the ovens (110), or spaced from the ovens

(110) is positioned.

13. puller carriage loading system (200) for loading Abzieherbzw. Baking oven (1) with dough pieces (5) comprising:

a) at least one puller or Ausbackwagen (1) according to one of claims 1-3; and

b) a loading station (210) comprising a puller carriage drive (220).

A picker truck loading system according to claim 13, wherein the loading station (210) comprises a coupling device (250) for transmitting mechanical energy to the puller cart (1).

The puller truck loader system according to one of claims 13 or 14, further comprising a support carriage (230) which supports the peelers (20) in the extended state.

16. puller carriage unloading device (402, 404), suitable for the automated unloading of baked goods (6) from a puller or baking machine (1), comprising at least one receiving means (410, 450) adapted in height for receiving the baked goods (6) from the respective peeling apparatuses (20) of the puller carriage (1).

17. The puller carriage unloading device according to claim 16, wherein the holding means (410) comprises a spiral chute (410) whose pitch is adapted to the height of the peelers (20) of the puller carriage (1) and which has a plurality of bypass areas (10). 420).

The puller carriage unloading apparatus according to claim 17, wherein the holding means (410) further comprises a conveyor belt (430) in front of each bypass portion (420) for urging the baked goods (6) onto the spiral chute.

19. A stripping carriage unloading apparatus according to claim 16, wherein the support means (450) comprises a gantry system (450) having a vertically movable conveyor belt (460) for receiving baked goods (6) from the strippers (20).

20. puller carriage unloading device according to any one of claims 16 - 19, further comprising an electric, hydraulic or pneumatic

Puller carriage drive for automated retraction and extension of the peelers.

21. A stripping carriage unloading apparatus according to any one of claims 16 to 20, further comprising a coupling device for transmitting mechanical energy to the stripping machine.

22. puller carriage unloading system (400) for unloading puller carriage comprising:

a) at least one puller carriage according to one of claims 1 - 3; and a puller carriage unloading apparatus according to any one of claims 16-21.