Toasting plate, toasting plate device and toasting oven

Abstract

The invention relates to a baking plate (1) for a baking plate device (2) of a baking oven (3) for producing crisp waffles which are baked under overpressure during the baking process, wherein: the main body (4) comprises an outer baking surface (6); the main body (4) comprises a rear surface (7) on the outer surface opposite the baking surface (6); a clamping slot (8) is made in the rear surface (7) of the main body (4); a clamping bar (12) is provided which is inserted into the clamping slot (8) so as to lie between the slot flanks (9, 10); a plurality of clamping devices (16, 17) are provided which can be brought into a clamping position; the clamping devices (16, 17) engage on the clamping bar (12) in their clamping position and project into the main body (4) on both sides from the clamping bar (12) through the slot flanks (9, 10) and also engage therein; and the clamping devices (16, 17) pull the slot flanks (9, 10) inwards towards or onto the clamping bar (12) in their clamping position and in the process bend the baking surface (6) of the main body (4) convexly forwards and hold the baking plate (1) in a preloaded position.

Description

Technical Field

[0001] This invention relates to a baking plate, a baking plate device, and a baking oven. Background Technology

[0002] In the industrial production of waffle products, it is known to add a substantially liquid waffle dough, containing approximately 45% to 70% water, in its unbaked state, into an open baking mold, which is designed as a baking clamp. The baking clamp is then closed after the dough is added, and the dough is conveyed through a heated baking chamber. Heating the baking mold, and thus also heating the dough, causes its volatile components to evaporate. This results in an increase in pressure within the baking clamp, which exerts a force on the baking plate of the clamp.

[0003] It is known that grill tongs include grill tong racks to which baking plates are attached. These grill tong racks are designed to open and close, with two baking plates forming a baking mold attached to the inner area. A disadvantage of this design is that the outer rack impairs heating of the grill tongs from the outside.

[0004] Existing technology also discloses baking tongs with a self-supporting baking plate but without a baking tong holder. In conventional self-supporting baking plates, an adjustment mechanism is used to adjust the posture of the baking plate and counteract the expansion of the baking mold caused by compressive forces. Especially when the baking plate is induction heated, the adjustment mechanism must be installed inside the baking plate; otherwise, it will hinder the heating of the baking mold and the baking plate. Conventional adjustment mechanisms are generally not suitable for sufficiently precise adjustment of the preload level of the baking plate. Furthermore, conventional adjustment mechanisms usually require complex manufacturing processes.

[0005] Uneven heating or inaccurate preloading can reduce the quality of baked products, thereby reducing the efficiency of the oven. The high manufacturing costs of both the oven and the baked products also contribute to the reduced efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a baking plate, baking plate apparatus, and / or baking oven to overcome the shortcomings of the prior art. A specific objective of this invention is to improve the efficiency of producing baked products.

[0007] The objectives of this invention are achieved, in particular, through the features of embodiments of this invention.

[0008] The present invention particularly relates to a baking plate for a baking plate device for a baking oven, the baking oven being used to produce crisp waffles baked under overpressure from an unbaked baking mass containing 45% to 70% water during the baking process.

[0009] The baking plate preferably comprises a plate-shaped body along the main extension plane.

[0010] The main body preferably has an external baking surface that forms one side of the overpressure baking mold during the baking process.

[0011] The main body preferably has a rear surface on the outer surface opposite to the baking surface, through which energy is introduced to heat the baking plate during the baking process.

[0012] Preferably, a clamping slot having a first slot side, a second slot side, and a slot base is formed in the rear surface of the body.

[0013] Preferably, a clamping bar is provided, which is inserted into the clamping slot and thus between the sides of the slot.

[0014] The clamping strip preferably has a first clamping surface, a second clamping surface, and a base surface.

[0015] Preferably, a plurality of first clamping devices and a plurality of second clamping devices are provided, which can be brought into the clamping position and are specifically designed to clamp screws.

[0016] Preferably, the clamping device engages with the clamping bar at its clamping position and protrudes from the clamping bar through the sides of the slot into and engages with the body. The clamping device may engage with the body via intermediate elements such as washers, wherein these intermediate elements may be considered as part of the clamping device.

[0017] Preferably, the clamping device pulls the slot side inward toward or onto the clamping bar in its clamping position, and in the process, causes the baking surface of the body to bend forward and holds the baking plate in the preloaded position.

[0018] It can be stipulated that multiple first clamping devices and multiple second clamping devices are arranged along the longitudinal direction of the clamping bar.

[0019] It can be specified that the first clamping device, in its clamping position, passes through the first clamping surface of the clamping bar and protrudes into the body through the first slot side of the clamping slot, and is attached thereon and specifically tightened into place.

[0020] It can be specified that the second clamping device, in its clamping position, passes through the second clamping surface of the clamping bar and protrudes into the body through the second slot side of the clamping slot, where it is attached and specifically tightened into place.

[0021] It can be specified that when the clamping device is in its non-clamping position, i.e., the relaxed position, and thus the baking plate is relaxed, the clamping strip has a certain smaller size compared to the clamping slot.

[0022] It can be specified that when the clamping device is in its clamping position, the width of the clamping slot is reduced and the clamping bar is held and clamped between the sides of the slot in the clamping slot.

[0023] It can be stipulated that when the second clamping device is in its relaxed position and the first clamping device is in its clamping position, the gap between the second clamping surface and the side of the second slot is kept open.

[0024] It can be stipulated that when the first clamping device and the second clamping device are in their clamping positions, the side of the second slot is pulled toward the second clamping surface and abuts against the second clamping surface.

[0025] It can be stipulated that adjustable adjustment components be provided.

[0026] It can be specified that the adjusting member allows for the selection of a smaller size and / or the setting of a gap width that maintains unobstructed passage between the second clamping surface and the second slot side when the baking plate is relaxed.

[0027] It can be specified that the adjusting component allows for selection of the preload degree of the clamping device on the baking plate.

[0028] It can be specified that the adjusting component may include one or more spacers, such as gaskets.

[0029] It can be stipulated that when the clamping device is in its clamping position, the clamping bar rests its base surface against the base of the slot.

[0030] It can be specified that when the baking plate is relaxed, the clamping bar is guided by translation along the main extension plane and transverse to the longitudinal direction of the clamping slot, particularly along the effective direction of the adjusting member, with its base surface on the base of the slot.

[0031] It can be specified that, when viewed relative to the main extension plane, the clamping device protrudes from the clamping bar toward the baking surface at a certain angle, passes through the side of the slot, and enters the main body.

[0032] It can be specified that in those areas where clamping devices are arranged, that is, especially in the areas where the clamping devices penetrate the sides of the slot, the sides of the slot extend in a manner orthogonal to the orientation of the clamping devices.

[0033] It can be specified that the second clamping surface has beaded stops along the longitudinal direction of the clamping bar, which preferably have a circular profile and linearly abut against the side of the second slot when the clamping device is clamped. Specifically, the clamping bar is linearly positioned on the side of the slot along its longitudinal direction. Where appropriate, the beaded stops have triangular, rectangular, or trapezoidal profiles. A circular profile facilitates line contact pressing. However, plastic deformation may occur due to over-clamping by the clamping device, causing the beaded stops to flatten slightly. Nevertheless, the contact area is described as linear.

[0034] It can be specified that when the clamping device is clamped, the first slot side of the clamping slot is pulled toward the clamping bar, wherein the adjusting member and, in particular, the shim is inserted.

[0035] It can be specified that when the clamping device is clamped, the second slot side of the clamping slot is pulled toward the bead-shaped stop on the clamping bar.

[0036] It can be specified that the clamping bar is recessed into the clamping slot or substantially flush with the rear surface. In this case, "substantially flush" means that, if necessary (e.g., for adjustment), the clamping bar can protrude slightly beyond the rear surface, for example, less than 0.5 mm or less than 0.2 mm. However, preferably, the clamping bar does not protrude beyond the rear surface.

[0037] It can be stipulated that the clamping device is recessed into the clamping bar or at least flush with the rear surface.

[0038] It can be specified that a curved slot is manufactured in the base of the slot along the longitudinal direction of the clamping slot in order to reduce the bending stiffness of the main body.

[0039] The present invention particularly relates to a baking plate device or suitable baking tongs for a baking oven for producing crisp waffles baked under overpressure from an unbaked dough containing 45% to 70% water during the baking process. The baking plate device or baking tongs includes two preferably self-supporting baking plates and two connecting devices disposed on both sides of the baking plates and connected to each other via the baking plates, wherein the connecting devices are designed to allow the baking plate device to open, close and lock in a closed position to form an overpressure baking mold.

[0040] This invention particularly relates to a baking oven for producing crisp waffles baked under overpressure from an unbaked dough containing 45% to 70% water during the baking process. The baking oven includes an annular conveyor belt and a plurality of baking plate assemblies arranged in a row along the conveyor belt, each passing sequentially:

[0041] Baking lump application area, used for applying baking lump to an open baking plate device.

[0042] A closed area used to close the baking plate assembly.

[0043] A baking chamber for baking products in a closed baking plate assembly, wherein at least one heating element is provided for heating the baking plate assembly located in the baking chamber.

[0044] Open area for opening the baking plate assembly.

[0045] And a waffle removal area for removing baked waffles from the open baking plate assembly.

[0046] The baking plate has a body. This body has an outer baking surface on one surface. This outer baking surface may, for example, have conventional carvings for producing flat waffles. This baking surface may have any embossed surface suitable for producing so-called hollow waffles. During baking, this baking surface forms one side or part of an overpressure baking mold.

[0047] To counteract the pressure that builds up within the overpressure baking mold during baking, the baking plate is preferably bent forward or preloaded. Preloading or forward bending is preferably performed relative to the baking pressure generated during baking in the overpressure baking mold. This specifically means that the baking surface is bent forward in a convex manner.

[0048] Preloading or forward bending is performed via a clamping device that can have a clamping position and a relaxed position. This also allows the body of the baking plate, and therefore the baking plate itself, to be preloaded or relaxed.

[0049] The clamping device is actuated to change the baking plate from a relaxed state to a preloaded state. The clamping device is designed, for example, to clamp screws. The clamping device pulls the slot side of the clamping slot toward the clamping bar.

[0050] The maximum preload of the baking plate can be limited and thus adjusted by selecting a smaller size of the clamping bar relative to the clamping slot, or by the adjusting member. However, in all embodiments, the degree of preload is preferably determined not by the clamping force of the clamping device, but only by the size of the clamping slot, the clamping bar, and preferably also by the size of the adjusting member.

[0051] In all embodiments, the clamping device can be clamped until the clamping bar is held or held within the clamping slot, and the sides of the slot contact the clamping bar or adjusting member. Further tightening of the clamping device will increase the clamping capacity, but preferably will not increase the preloading of the baking plate. The clamping device can be preloaded by further tightening, thereby preventing the clamp from being automatically released.

[0052] A clamping slot is disposed in the rear surface. The clamping slot preferably extends across the entire width of the baking plate and thus penetrates the entire width of the baking plate. In all embodiments, the clamping slot preferably extends from the rear surface of the body into the body. However, the clamping slot does not extend to the baking surface of the body, but is only in the shape of a slot, such that sufficient body material is retained between the baking surface and the base of the slot. The clamping slot can be manufactured in the rear surface of the body by simple milling or orientation milling. If applicable, the clamping slot can be produced or prepared during the casting process of the body. In all embodiments, the clamping slot preferably extends as a continuous slot with a constant cross-section along the entire length or width of the baking plate body.

[0053] The main body is preferably rectangular and connected to the connecting device on its narrow side. The clamping slot is preferably central and extends parallel to the narrow side.

[0054] The clamping slot preferably forms a weakened region for bending the body, wherein the weakening of the body at the clamping position is reduced and stability is improved because the clamping strip is clamped in the clamping slot at the clamping position. This allows the clamping strip to form a strong bond with the body.

[0055] The clamping strip is preferably positioned at a defined location on the base of the slot. For baking plates with a flat rear surface, the dimensions of the clamping slot and the clamping strip are set such that the clamping strip is preferably flush with the rear surface. This is advantageous when induction heating the baking plate. The clamping slot and the clamping strip are preferably designed such that the clamping strip is flush with the rear surface of the body in different positions within the clamping slot. This allows for adjustment of preload without compromising effective induction heating.

[0056] Preferably, the clamping strip and clamping device are arranged between the rear surface and the baking surface, particularly within the baking plate.

[0057] Preferably, the clamping bar also has a flat rear surface, which is interrupted only by an opening for passing through and actuating the clamping device. More than 50%, preferably more than 70% or more or more 80% of the rear surface of the clamping bar can be planar.

[0058] It can be specified that the normal distance between the baked surface and the back surface is in the range of 4cm to 10cm (inclusive).

[0059] The clamping bar may have a trapezoidal or wedge-shaped cross-section. Furthermore, only a portion of the cross-section of the clamping bar may be wedge-shaped or trapezoidal.

[0060] In all embodiments, the clamping strip is preferably a separate component, not part of the main body, but inserted as a separate part into the clamping slot. The clamping strip is preferably a single piece and / or a continuous strip. The clamping strip is preferably contoured and has a constant cross-section along its longitudinal direction, wherein the contour may be locally interrupted by elements such as screw openings.

[0061] Continuous clamping bars can prevent static over-determination or incorrect assembly.

[0062] The main body of the baking plate can be made as a single piece.

[0063] The body and the clamping strip can be made of the same material or be constructed from the same material to avoid differences in thermal expansion, for example.

[0064] Specifically, the clamping bars can be made of cast iron, such as ductile iron. The functional surfaces (particularly the clamping surfaces and the base surface) can be machined surfaces. The baking plate is preferably made of cast iron, particularly ductile iron.

[0065] Preferably, the baking plate device, in particular the baking plate, is designed to be heated by an induction heating device that operates via an induction gap. It may be specified that the rear surface of the baking plate is configured to serve as one side of the induction gap and / or form one side of the induction gap.

[0066] Preferably, at least one rear surface of the baking plate is flat, and particularly planar. This flat design of the rear surface is an advantageous embodiment for heating components used for induction heating of the hot baking plate. The rear surface is preferably flat or rib-free.

[0067] Preferably, the baking oven has an induction heating device. The induction heating device can be arranged at a certain distance from the baking plate assembly. Preferably, the inductor gap remains unobstructed between the baking plate, particularly on the back side of the baking plate, and the induction heating device.

[0068] The induction heating device can be configured to heat the baking plate device via the sensor gap.

[0069] The sensor gap can be designed as a long, narrow gap that is defined on one hand by the rear surface of the baking plate and on the other hand by the induction heating device along its longitudinal extension direction.

[0070] In other words, the sensor gap can be formed as a gap between the induction heating device and the rear surface of the baking plate.

[0071] However, the rear surface can also be designed to be embossed and ribbed. This is advantageous for heating assemblies with burners or gas burners.

[0072] Optionally, the rear surface of the baking plate is specified to have a surface for uniformly heating the baking plate and the overpressure baking mold, such as, in particular, a honeycomb, pyramid, or rib pattern, or a smooth surface.

[0073] In all embodiments, the baking plate is preferably designed as a self-supporting baking plate. Such a self-supporting baking plate is preferably designed without a frame. The connecting devices of the baking plate assembly are preferably connected to each other only via the baking plate. Alternatively, the frame for holding the baking plate or connecting the connecting devices to each other may be omitted.

[0074] A connecting device connects the two baking plates of a baking plate assembly used in the baking process. Specifically, the connecting device is designed so that the baking plates can be opened and closed. For example, the baking plate assembly can be designed as baking tongs, with one connecting device designed as a hinge and the other as a locking device.

[0075] Preferably, the connecting device is disposed on the narrow side of the baking plate.

[0076] In all embodiments, the longitudinal orientation of the clamping slots and clamping strips preferably extends in the area between the two connecting devices of the baking plate assembly, i.e., transversely to the axis extending from one connecting device to the other. The orientation of the preload bend line thus extends along the axis extending from one connecting device to the other.

[0077] In all embodiments, it is preferably specified that the clamping device is designed to clamp screws, each having a screw head and a threaded screw shank. In the clamping position, the screw head preferably rests on a shoulder within the clamping bar. A shank protrudes from this shoulder, passes through the clamping bar, and enters the body. The threads of the screw shank are screwed into the body. The engagement points of the first and second clamping devices differ and are transverse to the longitudinal direction of the clamping bar. Specifically, the first clamping device is arranged transverse to the longitudinal direction of the clamping bar and at a distance from the second clamping device. The screw head is preferably arranged, for example, to be recessed into the clamping bar.

[0078] The baking plate may, for example, have 2 to 6, preferably 3 to 5, first clamping devices. The baking plate may, for example, have 2 to 6, preferably 3 to 5, second clamping devices.

[0079] The through hole provided in the clamping bar for the clamping device to pass through preferably has a certain large size or clearance relative to the clamping device, which makes the contraction of the clamping slot and the forward bending of the body kinematically unimpeded.

[0080] The preloading or forward bending of the baking plate can be described as follows.

[0081] In the first step, a main body is provided. The main body has a baking surface on one side and a rear surface on the other side, on which a clamping slot is provided.

[0082] In another step, a clamping strip is inserted into the clamping slot. Although the shape of the clamping strip matches that of the clamping slot, its dimensions are slightly smaller than those of the slot. This smaller dimension is given along the width direction, i.e., extending transversely to the longitudinal direction of the clamping strip. Due to this smaller dimension, the gap between the clamping slot and the clamping strip is preferably kept clear when the body is in its relaxed position. When the baking plate is relaxed, the clamping strip may have a certain amount of play in the transverse direction compared to the clamping slot.

[0083] In the next step, the clamping devices are clamped. Specifically, multiple first clamping devices and multiple second clamping devices are clamped. The clamping devices can be, for example, adjusting screws or clamping screws. The clamping devices extend from the clamping bar to the slot sides on both sides and further into the body, where they are connected and specifically screwed into the body. Clamping the clamping devices causes a reduction in the width of the slot. Specifically, the two slot sides are pulled towards the clamping bar. Because the clamping bar has a smaller dimension than the clamping slot when the baking plate is in the relaxed position, the slot sides can be pulled towards the clamping bar by a certain amount until they contact the clamping bar. Therefore, the baking plate is bent forward or preloaded.

[0084] An adjustment member can be provided to allow adjustment of the preload level. Preferred adjustment members include spacers, such as shims. These shims can be inserted between the clamping bar and the slot, particularly between the first clamping surface and the side of the first slot. Therefore, the adjustment member allows adjustment of the gap size or width when the body is relaxed. Thus, the spacer is typically inserted between the clamping slot and the clamping bar before the clamping device is clamped. A preferred adjustment range is between 1.0 mm and 2.5 mm, but there is no upper or lower limit; however, a value >0.5 mm is advantageous.

[0085] However, it is also possible to omit the adjusting components or spacing devices. In this case, the degree of preloading is determined solely by the dimensions of the clamping slots and clamping bars. Preferably, the degree of preloading of the baking plate is independent of the clamping degree of the clamping device.

[0086] Preferably, in all embodiments, each baking plate has only a single clamping bar and / or a single clamping slot. Attached Figure Description

[0087] The invention will be further described below with reference to the accompanying drawings.

[0088] Figure 1 A schematic cross-sectional view of a possible implementation of the baking oven is shown.

[0089] Figure 2 A schematic perspective view of a possible embodiment of the baking plate apparatus is shown.

[0090] Figure 3 A schematic cross-sectional view showing details of the area of ​​the clamping slot or the area of ​​the clamping bar.

[0091] Figure 4 A schematic cross-sectional view showing details of an alternative method for preloading a baking plate.

[0092] Unless otherwise specified, the reference numerals in the drawings correspond to the following components: baking plate 1, baking plate device 2, baking oven 3, main body 4, main extension plane 5, baking surface 6, rear surface 7, clamping slot 8, first slot side 9, second slot side 10, slot base 11, clamping bar 12, first clamping surface 13, second clamping surface 14, base surface 15, first clamping device 16, second clamping device 17, longitudinal direction 18, gap 19, adjusting member 20, beaded stop 21, curved slot 22, connecting device 23, annular conveyor belt 24, baking lump application area 25, closed area 26, baking chamber 27, heating assembly 28, open area 29, waffle removal area 30, adjusting recess 31, (adjusting member) effective direction 32, (second clamping device) clamping direction 33, slot side angle 34. Detailed Implementation

[0093] Figure 1 A schematic oblique or sectional view of a baking oven 3 is shown. The baking oven 3 includes a plurality of baking plate assemblies 2, which are conveyed along a path through the baking oven 3. Each baking plate assembly 2 has two baking plates 1. The baking plates 1 or the baking plate assemblies 2 are preferably designed according to the present invention.

[0094] In an embodiment of the invention, an annular conveyor belt 24 is provided for moving the baking plate assembly 2. The annular conveyor belt 24 is, for example, a rotary-driven conveyor element, such as a chain or belt. The baking plate assemblies 2 are attached one after another to the annular conveyor belt 24. Baking lumps are loaded onto the baking plate assemblies 2 in the baking lump application area 25. The baking plate assemblies 2 are closed in the closing area 26. In an embodiment of the invention, the baking plate assemblies 2 are preferably designed as baking tongs. The closed baking plate assemblies 2 are conveyed through the baking chamber 27 for baking the baking lumps. A heating assembly 28 is provided in the baking chamber 27. In an embodiment of the invention, the heating assembly 28 is designed as an induction heating system. A fixed inductor induction heats the passing baking plate assemblies 2 or their baking plates 1.

[0095] However, conventional heating systems, such as gas heating or radiant heating, can also be used as alternatives to induction heating systems. The baking plate device 2, particularly the baking plate 1 or its rear surface 7, can be adapted to a heating type, namely, the heating element 28.

[0096] When producing crisp waffles using a baking dough containing 45% to 70% water in its unbaked state, a large amount of water vapor evaporates from the baking mixture within a very short time during the baking process. To counteract the resulting pressure, the baking plate device 2 can be locked. Furthermore, in all embodiments, it is preferably specified that the baking plate device 2 includes a sealing strip or an evaporation strip.

[0097] The baking plate device 2 forms an overpressure baking mold in its closed state. In particular, a sealing strip or evaporation strip and a locking device may be provided to form the overpressure baking mold.

[0098] The baked or intermediate baked products produced are primarily thin-walled waffle sheets. For example, they may be designed as flat waffle sheets or so-called hollow waffle sheets. To produce high-quality baked products, it is important to maintain a substantially constant thickness of the waffle sheet throughout the process. However, the pressure accumulated in the overpressure baking mold causes the baking plate assembly 2 to expand, which results in an increase in the thickness of the waffle sheet, particularly in the central region of the baking plate assembly 2. To counteract this expansion, the baking plate 1 is preloaded or bent forward toward the overpressure baking mold.

[0099] After the waffle block is baked in baking chamber 27, the baking plate device 2 passes through opening area 29, where it is opened. The fully baked waffle is then removed from the baking plate device 2 in waffle removal area 30.

[0100] In all implementations, it is preferably specified that the production of the waffle batter is carried out using a continuous process.

[0101] Figure 2 A schematic perspective view of a possible embodiment of the baking plate assembly 2 is shown. The baking plate assembly 2 includes two baking plates 1. Each baking plate assembly 1 includes a body 4, wherein the body 4 has a rear surface 7 on one side. A baking surface 6 is disposed on the other side of the body 4, which forms an overpressure baking mold (in... Figure 2 (A portion that is not visible in the illustration.)

[0102] As is preferred in all embodiments, the baking plate 1 may be designed to be self-supporting. The baking plate assembly 2 has connecting devices 23, particularly on both sides. In embodiments of the invention, on one hand, the connecting devices 23 are designed as hinge devices. On the other hand, the connecting devices 23 are preferably designed as locking devices. This creates baking tongs that can be opened, closed, and locked in the closed position. A sealing strip or evaporation strip is preferably provided around the overpressure baking mold. The two connecting devices 23 are connected to each other via the baking plate 1, and preferably only via the baking plate 1. In embodiments of the invention, no support frame is provided for the baking plate 1, and such a support frame is not necessary.

[0103] To counteract the baking pressure in the overpressure baking mold, the baking plate 1 can be preloaded or bent forward. For this purpose, a clamping slot 8 is provided in the body 4 of the baking plate 1. A clamping strip 12 is arranged in the clamping slot 8. When the baking plate 1 is not preloaded, the clamping strip 12 has a smaller dimension than the clamping slot 8 in the direction transverse to the clamping slot 8 or the longitudinal direction 18 of the clamping strip 12. Specifically, in the relaxed position of the baking plate 1, a gap 19 is maintained between the clamping strip 12 and the clamping slot 8. Clamping devices 16 and 17 are provided for preloading the baking plate 1. Preferably, a plurality of first clamping devices 16 and a plurality of second clamping devices 17 are provided along the longitudinal direction 18 of the clamping strip 12. In an embodiment of the invention, four first clamping mechanisms 16 and four second clamping mechanisms 17 are provided. The clamping devices 16 and 17 protrude from both sides of the clamping strip 12 into the body 4. By clamping the clamping devices 16 and 17, the slot sides 9 and 10 are pulled toward the clamping bar 12 and the baking plate 1 is preloaded or bent forward.

[0104] The baking plate device 2 may have conventional components, such as rollers for moving the baking plate device 2 in the baking oven 3, and guide wheels for lateral guidance or for actuating the baking plate device 2 via a linkage control.

[0105] Figure 3 Details of the baking plate 1 or possible embodiments of components for preloading the baking plate 1 are shown, such as, for example, in Figure 1 and / or Figure 2 In the case of baking plate 1, it can be set as described above. Figure 3 A schematic cross-sectional view is shown, in which the longitudinal direction 18 of the clamping slot 8 or clamping bar 12 extends in a projecting manner. The body 4 is plate-shaped and extends along the main extension plane 5.

[0106] The baking plate 1 includes a body 4 having a baking surface 6 on one side and a rear surface 7 on the other side. The baking surface 6 is preferably sculpted or shaped to give the baked product a desired shape or surface. A clamping slot 8 is provided in the rear surface 7 of the body 4. The clamping slot 8 extends from the rear surface 7 into the material of the body 4. The clamping slot 8 includes a first slot side 9, a second slot side 10, and a slot base 11. Sufficient space is provided between the slot base 11 and the baking surface 6 to ensure sufficient material exists between the clamping slot 8 and the baking surface 6.

[0107] To preload the baking plate 1, a clamping strip 12 is inserted into the clamping slot 8. In all embodiments, the clamping strip 12 is preferably a separate component, not part of the body 4, but inserted into the clamping slot 8 as a separate component. In all embodiments, the clamping slot 8 is preferably a slot machined or milled into the rear surface 7 and / or created during the casting process of the body 4. In all embodiments, the clamping slot 8 preferably extends along the entire length or width of the body 4 of the baking plate 1 as a continuous slot with a constant cross-section.

[0108] Preferably, the base surface 15 of the clamping strip 12 is placed on the slot base 11 during insertion. Preferably, the clamping slot 8 and the clamping strip 12 are designed such that when the baking plate 1 is relaxed, the clamping strip 12 is guided on the slot base 11 of the clamping slot 8. In particular, this allows the clamping strip 12 to move laterally to the longitudinal direction 18 (i.e., in the lateral direction) within the clamping slot 8. This mobility is achieved by the fact that the clamping strip 12 in the relaxed position has a certain smaller dimension in the lateral direction compared to the clamping slot 8. In the non-clamping position, a gap 19 is provided between the clamping strip 12 and the clamping slot 8. However, the illustrations of the present invention show a pre-loaded baking plate 1 in which the gap 19 is closed. In this case, the beaded stop 21 abuts against the second slot side 10. The beaded stop 21 is preferably configured to allow line contact and / or defined contact between the second slot side 10 and the clamping strip 12. However, the beaded stop 21 can also be omitted, so that the clamping surfaces 13 and 14 directly abut against the sides 9 and 10 of the slot.

[0109] However, preferably, the adjusting member 20 is disposed between the first slot side 9 and the first clamping surface 13. The adjusting member 20 allows for selection of a smaller size or selection of preloading achieved by the clamping devices 16, 17. The adjusting member 20 may, for example, include a spacer, such as an insert plate. In an embodiment of the invention, an insert plate is provided such that the clamping bar 12 is positioned such that... Figure 3The diagram shows a slight shift to the left. Therefore, when the clamping devices 16 and 17 are not clamped, the adjusting member 20 allows adjustment of the width of the gap 19. Forward bending or preloading is achieved by clamping the clamping devices 16 and 17. However, in all embodiments, the degree of preloading is preferably determined not by the clamping force of the clamping devices 16 and 17, but only by the clamping slot 8, the clamping bar 12, and preferably also by the dimensions of the adjusting member 20.

[0110] To protect the adjusting member 20 from temperature effects and contamination, the adjusting member 20 is arranged in an adjusting recess 31. In an embodiment of the invention, the adjusting recess 31 is formed by a stepped configuration of the contours of the clamping bar 12 and the clamping slot 8. Therefore, the adjusting recess 31 is covered and protected by a web in the region of the rear surface 7. A web is also provided on the other side, i.e., between the adjusting member 20 and the baking surface 6. The adjusting member of the adjusting member 20 can be placed or positioned on this web, for example, so that the clamping bar 12 can be subsequently inserted.

[0111] Preferably, the adjusting member 20 has a specific effective direction 32. In embodiments of the invention, the effective direction 32 of the adjusting member 20 extends substantially parallel to the main extension plane 5. However, the effective direction 32 of the adjusting member 20 may also be inclined relative to the direction of the main extension plane 5, for example, up to +10° or -10°.

[0112] In all embodiments, the clamping direction 33 of the second clamping device 17 is preferably inclined relative to the main extension plane 5. Specifically, the second clamping device 17 extends at an angle from the clamping bar 12 through the second slot side 10 of the clamping slot 8 and into the body 4. Preferably, the second slot side 10 extends perpendicular to or orthogonal to the orientation of the second clamping device 17 or perpendicular to or orthogonal to the clamping direction 33 of the second clamping device 17. In all embodiments, it is preferably specified that the clamping direction 33 extends obliquely relative to the effective direction 32. The angle between the clamping direction 33 and the effective direction 32 may, for example, be between 110° and 150°, preferably between 120° and 140°.

[0113] In all embodiments, it is preferably specified that the second slot side 10 extends obliquely relative to the main extension plane 5, particularly at a slot side angle 34 of 30° to 50°.

[0114] According to this embodiment, particularly in all embodiments, the first clamping device 16 may also extend at an angle from the clamping bar 12 toward the main extension plane 5 through the first slot side 9 and into the body 4 or be inclined relative to the main extension plane 5. Due to the configuration of the clamping devices 16, 17 extending at an angle from the clamping bar 12 toward the baking surface 6, the clamping bar 12 is pulled toward the slot base 11 with its base surface 15.

[0115] In embodiments of the invention, the clamping bar 12 is substantially flush with the rear surface 7. This is advantageous if the heating assembly 28 is an induction heating assembly. Since no element protrudes beyond the rear surface 7, the inductor gap can be kept small, thereby improving the efficiency of induction heating. Preferably, the clamping bar 12 is substantially flush with the rear surface 7 at each position set by the adjusting member 20. This is achieved in particular by guiding the clamping bar 12 on the slot base 11.

[0116] Preferably, the clamping devices 16 and 17 are also recessed below the rear surface 7, particularly recessed into the clamping strip 12.

[0117] Preferably, the clamping devices 16 and 17 in the clamping bar 12 are provided with through holes of a relatively large size. The large size of the through holes for the clamping devices 16 and 17 allows adjustment of the position of the clamping bar 12 relative to the clamping slot 8, particularly in the lateral direction. Preferably, two slot sides 9 and 10 are specified to be pulled toward or pulled toward the clamping bar 12 by the clamping devices 16 and 17. In the region of the first clamping surface 13, the clamping bar 12 is currently positioned on the first slot side 9 via the adjusting member 20.

[0118] In the region of the second slot side 10, the clamping bar 12 is mounted on the second clamping surface 14 by a beaded stop 21.

[0119] In an embodiment of the invention, a curved slot 22 is provided in the slot base 11. Compared to the clamping slot 8, the curved slot 22 extends a greater distance from the slot base 11 into the body 4. By selecting the shape and size of the curved slot 22, the bending behavior of the body 4 and thus the bending behavior of the baking plate 1 can be affected.

[0120] Figure 4 An alternative embodiment of the preloaded baking plate 1 is shown. The present invention relates to a baking plate 1 for a baking plate device 2 in a baking oven 3, the oven being used to produce crisp waffles baked under overpressure during the baking process from a baking mass, preferably containing 45% to 70% water, in an unbaked state. This baking plate 1 can therefore also be used according to… Figure 2 In the baking plate device and according to Figure 1 In the baking oven.

[0121] Preferably, the baking plate 1 includes a plate-shaped body 4 along the main extension plane 5.

[0122] Preferably, the main body 4 has an external baking surface 6, which forms one side of the overpressure baking mold during the baking process.

[0123] Preferably, the main body 4 has a rear surface 7 on its outer surface opposite to the baking surface 6, through which energy is introduced to heat the baking plate 1 during the baking process.

[0124] Preferably, a clamping slot 8 with a first slot side 9, a second slot side 10 and a slot base 11 is formed in the rear surface 7 of the main body 4.

[0125] Furthermore, a clamping bar 12 is preferably provided, which is inserted into the clamping slot 8 and thus between the sides 9 and 10 of the slot.

[0126] The clamping bar 12 includes a first clamping surface 13, a second clamping surface 14, and a base surface 15.

[0127] Preferably, a plurality of first clamping devices 16 and a plurality of second clamping devices 17 are provided, which can be brought into the clamping position and are specifically designed to clamp the screw.

[0128] exist Figure 4 In the illustration, the clamping screw is in the non-clamping position, so that the baking plate 1 or its body 4 has not yet been bent forward or preloaded.

[0129] Preferably, the clamping devices 16 and 17 are engaged with the clamping bar 12 at their clamping positions and protrude from the clamping bar 12 through the slot base 11 into the body 4 and are engaged therein.

[0130] Preferably, the clamping devices 16 and 17 pull one side of the slot base 11 toward or onto the clamping bar 12 in their clamping position, and in the process, cause the baking surface 6 of the body 4 to bend forward and hold the baking plate 1 in the clamping position.

[0131] Specifically, the first clamping device 16 and the second clamping device 17 are attached to each other at a distance spaced apart from each other, transverse to the longitudinal direction 18 of the clamping strip 12. If the first clamping device 16 is fastened, the clamping strip 12 is pulled toward or to the base 11 of the slot in the first region. The baking plate 1 is specifically designed such that in this position, i.e., when the second clamping device 17 is not clamped, a gap 19 is maintained between the clamping strip 12 and the clamping slot 8. The width of this gap 19 can be changed or adjusted by adjusting the member 20 (in particular the insert plate). By clamping the second clamping device 17, the body 4 of the baking plate 1 is bent, thereby closing the gap 19. By clamping the clamping devices 16 and 17, a firm connection is formed between the body 4 and the clamping strip 12, and the body 4 of the baking plate 1 is preloaded.

[0132] Preferably, the adjusting member 20 allows selection of the pre-loading degree of the clamping devices 16 and 17 on the baking plate 1.

[0133] Preferably, when the first clamping device 16 is in its clamping position, the clamping bar 12 abuts its base surface 15 against the slot base 11.

[0134] Preferably, when the second clamping device 17 is brought into its clamping position, the clamping bar 12 is pulled toward the base surface 11 with its base surface 15. The adjusting member 20 is preferably disposed between the clamping bars 12 in the region of the second clamping device 17. Alternatively, the adjusting member may be arranged between the clamping bar 12 and the slot base in the region of the first clamping device 16.

[0135] Preferably, the first clamping device 16 and the second clamping device 17 extend substantially orthogonally to the main extension plane 5. In particular, the first clamping device 16 and the second clamping device 17 extend through the clamping bar 12 into the body 4. In this process, the clamping devices 16 and 17 are engaged with the clamping bar 12 on one hand and with the body 4 on the other.

[0136] Preferably, the clamping devices 16 and 17 are recessed into the rear surface 7. Specifically, if the baking plate 1 is configured for use with an induction heating system, a substantially smooth rear surface 7 is provided. Preferably, the surface of the clamping strip 12 is also substantially flush with the rear surface 7 of the body 4. The clamping devices 16 and 17 may preferably be designed to clamp screws, with the screw heads supported on the clamping strips. The screw heads are preferably recessed into the clamping strips.

[0137] Preferably, a curved slot 22 is formed in the slot base 11 along the longitudinal direction 18 of the clamping slot 8 in order to reduce the bending stiffness of the body 4.

[0138] Preferably, the curved slot 22 divides the slot base 11 into two parts, wherein the first clamping device 16 protrudes into one part and the second clamping device 17 protrudes into the other part.

Claims

1. A baking plate (1) for a baking plate device (2) for a baking oven (3), said baking oven being used to produce crisp waffles baked under overpressure with baking blocks during the baking process. The baking plate (1) includes a plate-shaped body (4) along the main extension plane (5). The main body (4) has an external baking surface (6), which forms one side or part of the surface of the overpressure baking mold during the baking process. The main body (4) has a rear surface (7) on its outer surface opposite to the outer baking surface (6), through which energy is introduced during the baking process to heat the baking plate (1). A clamping slot (8) having a first slot side (9), a second slot side (10) and a slot base (11) is formed in the rear surface (7) of the main body (4). A clamping bar (12) is provided therein, which is inserted into the clamping slot (8) and thus located between the side surface (9) of the first slot and the side surface (10) of the second slot. The clamping bar (12) has a first clamping surface (13), a second clamping surface (14), and a base surface (15). It is equipped with multiple first clamping devices (16) and multiple second clamping devices (17), which can be brought into the clamping position. Its features are, The first clamping device (16) and the second clamping device (17) engage with the clamping bar (12) at their clamping positions and protrude from the clamping bar (12) through the first slot side (9) and the second slot side (10) into the body (4) and are also engaged therein. Furthermore, the first clamping device (16) and the second clamping device (17) pull the first slot side (9) and the second slot side (10) inward toward the clamping bar (12) or onto the clamping bar in their clamping positions, and in the process, cause the outer baking surface (6) of the body (4) to bend forward and hold the baking plate (1) in the preloaded position.

2. The baking plate (1) according to claim 1, characterized in that, A plurality of first clamping devices (16) and a plurality of second clamping devices (17) are provided along the longitudinal direction (18) of the clamping bar (12). The first clamping device (16) protrudes into the body (4) at its clamping position through the first clamping surface (13) of the clamping bar (12) and through the first slot side (9) of the clamping slot (8), and is attached and tightened into place thereon. And characterized in that the second clamping device (17) protrudes into the body (4) through the second clamping surface (14) of the clamping bar (12) and through the second slot side (10) of the clamping slot (8) in its clamping position and is attached and tightened into place thereon.

3. The baking plate (1) according to claim 1 or 2, characterized in that, When the first clamping device (16) and the second clamping device (17) are in their non-clamping position, i.e., the relaxed position, and the baking plate (1) is therefore relaxed, the clamping strip (12) has a certain smaller size compared to the clamping slot (8). Furthermore, it is characterized in that when the first clamping device (16) and the second clamping device (17) are in their clamping positions, the width of the clamping slot (8) is reduced and the clamping bar (12) is held and clamped between the first slot side (9) and the second slot side (10) in the clamping slot (8).

4. The baking plate (1) according to claim 3, characterized in that, When the second clamping device (17) is in its relaxed position and the first clamping device (16) is in its clamping position, the gap (19) between the second clamping surface (14) and the side surface (10) of the second slot remains unobstructed. Furthermore, it is characterized in that when the first clamping device (16) and the second clamping device (17) are in their clamping positions, the second slot side (10) is pulled toward the second clamping surface (14) and abuts against the second clamping surface.

5. The baking plate (1) according to claim 4, characterized in that, It is equipped with an adjustable adjustment component (20). The characteristic feature is that the adjusting member (20) allows selection of the smaller size and / or setting of the gap width of the gap (19) that maintains unobstructed passage between the second clamping surface (14) and the second slot side (10) when the baking plate (1) is relaxed. Furthermore, the adjusting member (20) allows selection of the preload degree of the first clamping device (16) and the second clamping device (17) on the baking plate (1).

6. The baking plate (1) according to claim 5, characterized in that, The adjusting member (20) includes one or more interval devices.

7. The baking plate (1) according to claim 1 or 2, characterized in that, When the first clamping device (16) and the second clamping device (17) are in their clamping positions, the clamping bar (12) abuts the slot base (11) with its base surface (15).

8. The baking plate (1) according to claim 1 or 2, characterized in that, When the baking plate (1) is relaxed, the clamping bar (12) is guided by its base surface (15) in a translational manner along the main extension plane (5) and transverse to the longitudinal direction (18) of the clamping slot (8) on the base of the slot (11).

9. The baking plate (1) according to claim 1 or 2, characterized in that, Viewed relative to the main extension plane (5), the first clamping device (16) and the second clamping device (17) protrude from the clamping strip (12) toward the external baking surface (6) at a certain angle through the first slot side (9) and the second slot side (10) and enter the body (4). Furthermore, the first slot side (9) and the second slot side (10) extend in those areas where the first clamping device (16) and the second clamping device (17) are arranged in a manner orthogonal to the orientation of the first clamping device (16) and the second clamping device (17).

10. The baking plate (1) according to claim 5, characterized in that, The second clamping surface (14) has a beaded stop (21) along the longitudinal direction (18) of the clamping bar (12), the beaded stop (21) having a circular profile and linearly abutting the side of the second slot (10) when the first clamping device (16) and the second clamping device (17) are clamped.

11. The baking plate (1) according to claim 10, characterized in that, When the first clamping device (16) and the second clamping device (17) are clamped, the first slot side (9) of the clamping slot (8) is pulled toward the clamping bar (12), wherein the adjusting member (20) is inserted. And it is characterized in that when the first clamping device (16) and the second clamping device (17) are clamped, the second slot side (10) of the clamping slot (8) is pulled toward the bead-shaped stop (21) on the clamping bar (12).

12. The baking plate (1) according to claim 1 or 2, characterized in that, The clamping strip (12) is recessed into the clamping slot (8) or substantially flush with the rear surface (7). And / or characterized in that the first clamping device (16) and the second clamping device (17) are recessed into the clamping strip (12) or at least flush with the rear surface (7).

13. The baking plate (1) according to claim 1 or 2, characterized in that, A curved slot (22) is formed in the base of the slot (11) along the longitudinal direction (18) of the clamping slot (8) in order to reduce the bending stiffness of the body (4).

14. A baking plate device (2) for a baking oven (3) for producing crisp waffles baked under overpressure in a baking process, the baking plate device comprising two baking plates (1) and two connecting devices (23) arranged on both sides of the baking plates (1) and connected to each other via the baking plates (1), wherein the connecting devices (23) are designed such that the baking plate device (2) can be opened, closed and locked in a closed position to form an overpressure baking mold, characterized in that, One or two baking plates (1) are designed according to any one of claims 1 to 13.

15. A baking oven (3) for producing crisp waffles baked under overpressure during baking, the baking oven comprising an annular conveyor belt (24) and a plurality of baking plate devices (2) arranged along the annular conveyor belt (24), the baking plate devices (2) being arranged in a row and passing sequentially: Baking lump application area (25), the baking lump application area is used to apply baking lump to the open baking plate device (2). Closed area (26), the closed area is used to close the baking plate device (2). A baking chamber (27) for baking products in a closed baking plate device (2), wherein at least one heating element (28) is provided for heating the baking plate device (2) located in the baking chamber (27). Opening area (29), the opening area being used to open the baking plate device (2). and a waffle removal area (30) for removing baked waffles from the open baking plate device (2), Its features are, The baking plate device (2) is designed according to claim 14. And / or characterized in that the baking plate device (2) includes a baking plate (1) according to any one of claims 1 to 13.

Images