SYSTEM FOR CONVEYING DOUGH ALONG A CONVEYING SECTION
20210307337 · 2021-10-07
Assignee
Inventors
Cpc classification
International classification
Abstract
A system for conveying dough along a conveying section comprises at least one dough-conveying element that defines a conveying section of a defined total length. The conveying section has a first conveying section portion, in which dough conveyable along the conveying section can be placed on the dough conveying element, a second conveying section portion connected downstream of the first conveying section portion, in which the cross-sectional geometry of the dough conveyable or conveyed along the conveying section can be altered, and a third conveying section portion connected downstream of the second conveying section portion, in which conveyable or conveyed dough with an altered cross-sectional geometry can be conveyed towards a transfer region, in which the conveyable or conveyed dough can be transferred to a dough-processing system that can be or is connected downstream of the system.
Claims
1. A system for conveying dough along a conveying section, comprising a dough-conveying element that defines a conveying section of a defined total length, wherein the conveying section (3) comprises a first conveying section portion, in which dough conveyable along the conveying section can be placed on the dough-conveying element, a second conveying section portion arranged downstream of the first conveying section portion, in which the cross sectional geometry of the dough conveyable or conveyed along the conveying section (3) can be altered, a third conveying section portion arranged downstream of the second conveying section portion, in which conveyable or conveyed dough with an altered cross-sectional geometry can be conveyed towards a transfer region, in which the conveyable or conveyed dough can be transferred to a dough-processing system that is arrangeable downstream of the system.
2. The system according to claim 1, wherein the dough can be placed or deposited on the first conveying section portion in a region of the first conveying section portion in which a dough-forming region for the dough is at least partially formed.
3. The system according to claim 1, further comprising at least one dough-portioning device assigned to the first conveying section portion.
4. The system according to claim 1, further comprising at least one separating agent application device associated with the first conveying section portion and adapted to apply a separating agent to the first conveying section portion.
5. The system according to claim 1, wherein the first conveying section portion has a length of at least 33% of the conveying section.
6. The system according to claim 5, wherein the second and third conveying section portions together have a length of less than 50% of the total length of the conveying section.
7. The system according to claim 1, further comprising a dough-forming device associated with the second conveying section portion and comprising at least one dough-forming element.
8. The system according to claim 1, further comprising a separating agent application device associated with the second conveying section portion, which is adapted to apply a separating agent to the second conveying section portion, and/or to apply a separating agent to a dough-forming device associated with the second conveying section portion and comprising at least one dough-forming element.
9. The system according to claim 8, wherein the separating agent application device is adapted to apply the separating agent, viewed in cross-section, over an entire width of the second conveying section portion, and/or over an entire width of the at least one dough forming element.
10. The system according to claim 1, wherein the first conveying section portion comprises a first conveying section sub-portion arranged at an angular inclination relative to a second conveying section sub-portion that is arranged downstream of the first conveying section sub-portion.
11. A facility for processing dough, comprising at least one system according to claim 1.
12. A method for conveying dough, the method comprising: placing dough on a first conveying section portion of a conveying section defined by a dough-conveying element, wherein the conveying section further comprises a second conveying section portion and a third conveying section portion; conveying the dough along the second conveying section portion arranged downstream of the first conveying section portion, wherein a cross-sectional geometry of the dough can be altered in the second conveying section portion; and conveying the dough along the third conveying section portion arranged downstream of the second conveying section portion so that the dough with an altered cross-sectional geometry can be conveyed towards a transfer region, in which the dough can be transferred to a dough-processing system arranged downstream of the conveying section.
13. The system according to claim 2, wherein the dough-forming region is configured to form a V-shaped configuration viewed in cross-section.
14. The system according to claim 3, wherein the at least one dough-portioning device comprises a dough-portioning device configured to continuously or discontinuously deposit defined dough portions onto the first conveying section portion.
15. The system according to claim 5, wherein the length of the first conveying section portion is more than 33% of the total length of the conveying section.
16. The system according to claim 5, wherein the length of the first conveying section portion is at least 50% of the total length of the conveying section.
17. The system according to claim 5, wherein the length of the first conveying section portion is more than 60% of the total length of the conveying section.
18. The system according to claim 7, wherein the at leas one dough-forming element comprises a dough-forming roller or dough-forming cylinder.
19. The system according to claim 8, wherein the separating agent application device is configured to apply the separating agent to exposed regions of dough conveyed along the second conveying section portion.
20. The method according to claim 12, wherein placing the dough comprises placing the dough on the first conveying section portion in a region of the first conveying section portion in which a dough-forming region is at least partially formed.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0084] The disclosure is explained again by means of embodiments in the following drawings:
[0085]
[0086]
[0087]
[0088]
[0089]
[0090]
DETAILED DESCRIPTION
[0091]
[0092] The system 1 can form part of or be associated with a superordinate facility (not shown) for processing dough 2.
[0093] The system 1 comprises an elongate dough-conveying element 4 defining the conveying section 3. In the embodiment shown in
[0094] In the embodiment shown in the Figures, the dough-conveying element 4 is exemplarily configured by a belt-like or belt-shaped dough-conveying element body forming a conveyor belt and thus as a dough conveyor belt. Equally, however, a configuration of the dough-conveying element 4 by a chain-like or chain-shaped dough-conveying element body forming a conveyor chain would be conceivable.
[0095] From
[0096] The dough-conveying element 4 comprises a dough-supporting region 6 forming a supporting surface 7 for dough 2 that can be conveyed or is to be conveyed by means of the system 1, and two lateral regions 8 extending laterally along the dough-supporting region 6 in the longitudinal direction of the dough-conveying element 4. Viewed in cross-section, the dough-supporting region 6 forms a central region, i.e., the middle region, of the dough-conveying element 4.
[0097] The lateral regions 8 are arranged or formed on the dough-conveying element 4 extending laterally along the dough-supporting region 6 in the longitudinal direction of the dough-conveying element 4. The lateral regions 8 can be connected to the dough-supporting region 6 in a formfitting, force-fitting and/or material-fitting manner at a respective longitudinal side edge of the dough-supporting region 6; a first lateral region 8 is arranged or formed on the dough-conveying element 4 extending laterally in the longitudinal direction of the dough-conveying element 4 along a first longitudinal side edge of the dough-supporting region 6, i.e., is arranged or formed on the dough-supporting region 6 extending in the longitudinal direction of the dough-conveying element 4 laterally along a first longitudinal side edge of the dough-supporting region 6, i.e., connected to a first longitudinal side edge of the dough-supporting region 6, and a second lateral region 8 is arranged or formed on the dough-supporting region 6 extending in the longitudinal direction of the dough-conveying element 4 laterally along a second longitudinal side edge of the dough-supporting region 6, i.e., connected to a second longitudinal side edge of the dough-supporting region 6.
[0098] The lateral regions 8 are each movable, i.e., as indicated by the double arrows 9 in
[0099] By means of a respective pivoting movement of the lateral regions 8 relative to the dough-supporting section 6, a dough-supporting region 10 (cf. in particular
[0100] Specifically, the lateral regions 8 in the embodiments shown in the Figures are each aligned between a first pivoted position indicated by dashed lines in
[0101] The arrangement or configuration of the lateral regions 8 on the dough-supporting region 6 can be realized, for example, by a hinge-like or hinge-shaped connection of the lateral regions 8 to the dough-supporting region 6. The lateral regions 8 can be connected to the dough-supporting region 6, for example, by a hinge or hinge-like element 11. In the case of a material-locking connection of the lateral regions 8 to the dough-supporting region 6, which can be given, for example, in the case of a one-piece configuration of the lateral regions 8 and the dough-supporting region 6, corresponding hinge elements 11 can be formed, for example, by a film hinge or comprise such a hinge.
[0102]
[0103] Although not shown in the Figures, it would also be conceivable to provide supporting bodies 13 in the form of supporting wedges.
[0104] As mentioned, the dough-conveying element 4 defines the conveying section 3 with a defined overall length L.
[0105] On the basis of
[0106] The conveying section 3 comprises a first conveying section portion 3.1. In the first conveying section portion 3.1, the dough 2 to be conveyed along the conveying section 3 can be placed or deposited on the dough-conveying element 4 or on the conveying section 3. Furthermore, in the first conveying section portion 3.1, a separating agent 29 is applied to the dough-conveying element 4. It is evident that the application of the separating agent 29 takes place in a region of the first conveying section portion 3.1, cf. conveying section sub-portion 3.1.1, which is arranged upstream of a region of the first conveying section portion 3.1, cf. conveying section sub-portion 3.1.1, in which the dough 2 can be placed or deposited on the dough-conveying element 4. The first conveying section portion 3.1 can be referred to or considered as the infeed or dough-depositing section.
[0107] From
[0108] In a second conveying section portion 3.2 arranged downstream of the first conveying section portion 3.1, the cross-sectional geometry of the dough 2 can be varied. The second conveying section portion 3.2 can be designated or regarded as a dough-forming section. Due to the application of separating agent 29 already carried out in the first conveying section portion 3.1, the dough 2 conveyed in the second conveying section portion 3.2 is already deposited on a dough-conveying element 4 extensively or completely provided with separating agent 29. The forming of the dough 2 in the second conveying section portion 3.2 can be effected by the angular, i.e., in particular right-angled, alignment of the lateral regions 8 of the dough-conveying element 4 movably arranged or formed relative to the dough-supporting region 6 of the dough-conveying element 4 (cf.
[0109]
[0110] In a third conveying section portion 3.3 arranged downstream of the second conveying section portion 3.2, the dough 2, which has been altered in its cross-sectional geometry, can be conveyed in the direction of a transfer region 30, in which the dough 2 can be transferred to a dough-processing device which can be arranged or is arranged downstream of the system 1, i.e., for example, to a further dough-forming device. The third conveying section portion 3.3 can be designated or considered as a discharge or transfer region.
[0111] As exemplified by the first conveying section portion 3.1, each of said conveying section portions 3.1-3.3 may in turn comprise at least two conveying section sub-portions, possibly different ones having sub-functions of the superordinate function of the respective conveying section portion 3.1-3.3.
[0112] In the embodiment, the first conveying section portion 3.1 is divided into two conveying section sub-portions 3.1.1, 3.1.2, wherein in the first conveying section sub-portion 3.1.1, separating agent 29 is applied to the dough-conveying element 4 and in the second conveying section sub-portion 3.1.2, dough 2 is deposited. Accordingly, in the vicinity of the first conveying section sub-portion 3.1.1 a (first) separating agent application device 31 is arranged, via which a separating agent 29, e.g., flour, can be applied to the first conveying section sub-portion 3.1.1, and in the vicinity of the second conveying section sub-portion 3.1.2 a dough-depositing device 33 associated with the first conveying section sub-portion 3.1, which is in particular a dough-portioning device in the form of a star-roller portioning device, which is adapted for the continuous or discontinuous depositing of dough 2, in particular of defined dough portions, onto the first conveying section sub-portion 3.1 or the second conveying section sub-portion 3.1.2. In the embodiments shown in the Figures, the dough-depositing device 33 is arranged relative to the conveying section 3 or the first conveying section portion 3.1 such that it enables dough 2 to be deposited on the first conveying section portion 3.1 or the second conveying section sub-portion 3.1.2.
[0113] In the embodiment shown in the Figures, the first conveying section sub-portion 3.1.1 correlates with the first dough-conveying element portion 4a and the second conveying section sub-portion 3.1.2 correlates with the first dough-conveying element portion 4b. However, this is not absolutely necessary.
[0114] To enable extensive application of separating agent 29 to the dough-conveying element 4, in particular before the dough 2 is placed on the dough-conveying element 4, the first conveying section portion 3.1 is particularly dimensioned in terms of length. In the embodiment, the first conveying section portion 3.1 has an exemplary length L1 of more than 50% of the total length L of the conveying section 3.
[0115] This significantly extended configuration of the first conveying section portion 3.1 ensures the possibility of an extensive application of separating agent 29 to the dough-conveying element 4 before the dough 2 is actually placed on the dough-conveying element 4, which has a positive effect on the conveying and forming of the dough 2. The first conveying section portion 3.1 can be completely provided with separating agent 29 before the dough 2 is actually placed on it. In particular, an extensive application of separating agent 29 over the entire width of the dough-conveying element 4 is possible before the dough 2 is actually deposited on the dough-conveying element 4, so that the dough 2 that can be deposited on the dough-conveying element 4 in the second conveying section sub-portion 3.1.2 of the first conveying section portion 3.1 can already be deposited on the dough-conveying element 4 that is extensively or completely provided with separating agent 29. The separating agent 29 can thus be applied such that the separating agent 29 (as far as possible) completely surrounds the dough 2 resting on the dough-conveying element 4, at least in the region of possible contact areas with the dough-conveying element 4.
[0116] In the embodiment shown in the Figures, the particular length dimension of the first conveying section portion 3.1 results in the first conveying section portion 3.1 having a greater length L1 than the second and/or third conveying section portions 3.2, 3.3.
[0117] The second and third conveying section portions 3.2, 3.3 can, for example, together have a length L1, L2 of less than 50% of the total length L of the conveying section 3. The total length of the second and third conveying section portions 3.2, 3.3 resulting from the sum of the lengths L1, L2 of the second and third conveying section portions 3.2, 3.3 can therefore be less than 50% of the total length L of the conveying section 3.
[0118] The embodiment shows that the second and third conveying section portions 3.2, 3.3 can have the same length; in principle, however, it is also conceivable that the second and third conveying section portions 3.2, 3.3 have different lengths L2, L3.
[0119] As mentioned, the system 1 comprises a first separating agent application device 31 associated with the first conveying section portion 3.1, which is adapted to apply a separating agent 29 to the first conveying section portion 3.1 or the first conveying section sub-portion 3.1.1. The first separating agent application device 31 is arranged relative to the conveying section 3 or the first conveying section sub-portion 3.1 such that it enables application of the separating agent 29 to the first conveying section sub-portion 3.1.1.
[0120] The first separating agent application device 31 is in particular set up to apply the separating agent 29, viewed in cross-section, over the entire width of the first conveying section portion 3.1 or the entire width of the dough-conveying element 4 in the vicinity of the first conveying section portion 3.1. In such a way, the possibility of an extensive or complete application of separating agent 29 to the dough-conveying element 4 before the dough 2 is actually placed on the dough-conveying element 4 is ensured.
[0121] The system 1 further comprises a second separating agent application device 32 associated with the second conveying section portion 3.2, which is arranged to apply a separating agent 29 to the second conveying section portion 3.2, in particular to exposed areas of dough 2 conveyed along the second conveying section portion 3.2, or to a dough-forming device 35 associated with the second conveying section portion 3.2. The second separating agent application device 32 can ensure that a sufficient amount of separating agent 29 is always present in the second conveying section portion 3.2, in which, as mentioned, a corresponding alteration of the cross-sectional geometry of the dough 2 or a forming of the dough 2 takes place.
[0122] The (second) separating agent application device 32 is adapted to apply the separating agent 29, viewed in cross-section, over the entire width of the second conveying section portion 3.2, in particular the entire width of the exposed area of the dough 2 conveyed along the second conveying section portion 3.2, or the entire width of a roller- or roll-shaped dough-forming device 34 associated with the dough-forming device 35. In such a way, the possibility of an extensive or complete application of separating agent 29 to the dough-conveying element 4 or to the dough 2 during the alteration of the cross-sectional geometry of the dough 2 or during the forming of the dough 2 is ensured.
[0123] The application of the separating agent 29 by means of the first and/or the second separating agent application device 31, 32 can be carried out depending on the type of separating agent 29, i.e., in particular on the type of its aggregate state, e.g., by blowing, trickling, casting, pouring, etc. The first and/or second separating agent application device 31, 32 can accordingly be configured, for example, as a blowing, trickling, casting or pouring device.
[0124] The system 1 further comprises the aforementioned dough-forming device 35 associated with the second conveying section portion 3.2 and comprising at least one dough-forming element 34, for example in the form of a dough-forming roller or a dough-forming cylinder. The dough-forming device 35 is arranged to exert a vertically acting force, indicated by the arrow F, on the dough 2 in order to (largely) deform the dough 2 in a defined manner. In such a way, the aforementioned alteration of the cross-sectional geometry or forming of the dough 2 can be effected or promoted. Due to the described extensive application of separating agent 29 via the first and/or second separating agent application device 31, 32, the possibility of the dough 2 also adhering to the dough-forming element 34 is prevented or at least considerably reduced.
[0125]
[0126] In the embodiments shown in
[0127] The flexurally-rigid material behavior in the vicinity of the dough-supporting region 6 or in the dough-supporting region 6 is initially appropriate because considerable forces can act on the dough-supporting region 6 when the lateral regions 8 are moved or pivoted relative to the dough-supporting region 6, which can lead to deflection of the dough-supporting region 6 without corresponding flexural rigidity. The flexurally-rigid material behavior in the vicinity of the dough-supporting region 6 or in the dough-supporting region 6 is further expedient because considerable forces, i.e., in particular bending or compressive forces, can act on the dough-supporting region 6 during dough conveying and dough forming, which can be absorbed by the flexurally-rigid material behavior of the dough-conveying element 4 in the vicinity of the dough-supporting region 6. The dough 2 can thus be deposited, conveyed and formed on a dough-conveying element 4 of mechanically stable configuration in the vicinity of the dough-supporting region 6, which enables reproducible geometrically defined dough forming. Due to the locally flexurally-rigid configuration, there is no or a much reduced possibility of deflection of the dough-conveying element 4 in the vicinity of the dough-supporting region 6. The flexurally-rigid configuration is not selected to be so high that deflection of the dough-conveying element 5 at the deflection bodies 5 is no longer possible.
[0128] The resiliently-extensible material behavior in the lateral region 8 or in the lateral regions 8 is therefore expedient, as considerable forces, i.e., in particular extension or tensile forces, can act on the lateral regions 8 during a corresponding movement, i.e., in particular a corresponding pivoting movement, relative to the dough-supporting region 6, which forces can be absorbed by the resiliently-extensible material behavior of the dough-conveying element 4 in the vicinity of the lateral regions 8. An extension of the lateral regions 8 caused by a movement of the lateral regions 8 relative to the dough-supporting region 6 is thus possible without risk of damage to the dough-conveying element 4 due to the resiliently-extensible material behavior. The resiliently-extensible material behavior can also allow resilient recovery behavior of the lateral regions 8 from an extended state, which typically occurs with corresponding movement of the lateral regions 8 relative to the dough-supporting region 6, to a less or non-extended state.
[0129] The different material behavior in the vicinity of the dough-supporting region 6 or in the dough-supporting region 6 and in the vicinity of the lateral regions 8 or in the lateral regions 8 can be brought about, for example, by different materials or material structures for forming the dough-supporting region 6 and the lateral regions 8, i.e., different material pairings or material structure pairings. Thus, a flexurally-rigid or hard material or a flexurally-rigid or hard material structure can be used in the vicinity of the dough-supporting region 6 or in the dough-supporting region 6, and a resiliently-extensible or soft material or a resiliently-extensible or soft material structure can be used in the vicinity of the lateral region 8 or in the lateral regions 8.
[0130] Alternatively or additionally, it is also conceivable, for example, to generate locally different mechanical properties and thus locally different material behavior by structural measures. In the vicinity of the dough-supporting region 6 or in the dough-supporting region 6, for example, an increased thickness or wall thickness of the respective material or the respective material structure can be provided and/or the respective material or the respective material structure can be provided with reinforcing elements, such as ribs. In the vicinity of the lateral regions 8 or in the lateral regions 8, for example, a reduced thickness or wall thickness of the respective material or the respective material structure can be provided and/or the respective material or the respective material structure can be provided with weakening elements, such as recesses. This also applies in particular to the use of (chemically) similar or identical materials for configuring the dough-conveying element 4 in the vicinity of the dough-supporting region 6 and the lateral regions 8.
[0131] As explained in more detail in connection with the embodiments shown in
[0132] In the embodiment shown in a perspective view in
[0133] In the embodiment shown in
[0134] It can be seen from
[0135] In all cases, the resiliently-extensible material 37 or the resiliently-extensible material structure can be attached to and/or on the supporting body 36 in a form-fit, force-fit and/or material-fit manner, for example. In particular, material-locking attachment methods such as bonding or welding are considered.
[0136] In order to counter the problem of insufficient mechanical stability, i.e., in particular insufficient flexural or transverse rigidity, of the dough-conveying element 4 in the dough-supporting region 6, the dough-conveying elements 4 in the embodiments shown in
[0137] Due to the stiffening of the dough-supporting region 6, any (mechanical) tension acting on the dough-conveying element 4 in order to keep the dough-conveying element 4 flat can furthermore be reduced, since the dough-conveying element 4 is inherently already mechanically stable, i.e., in particular stiff, to such an extent that an (additionally) applied tension is not required or is required to a (considerably) reduced extent in order to keep the dough-supporting region 6 or the dough-conveying element 4 flat. This applies to all embodiments with a stiffening structure 16.
[0138] The (additional) mechanical stabilization or stiffening of the dough-conveying element 4, at least in the dough-supporting region 6, brought about by the stiffening structure 16 can furthermore have a positive effect on the conveying properties of the dough-conveying element 4. This also applies to all embodiments with a stiffening structure 16.
[0139] With reference to the embodiments shown in
[0140] In the embodiment shown in a perspective view in
[0141] The rigidity of a corresponding stiffening body 18 may exceed the rigidity of the remaining dough-conveying element 4 or of a base material forming the remaining dough-conveying element 4. Accordingly, the stiffening body 18 may be formed of a stiffer material compared to the dough-conveying element 4, i.e., for example, a comparatively stiffer plastic or metal. However, this is not absolutely necessary, as a stiffening effect can also result from the arrangement of several corresponding stiffening bodies 18, as mentioned.
[0142] In the embodiment shown in a perspective view in
[0143] The rigidity of the reinforcing fiber arrangement 19 or the reinforcing fibers may exceed the rigidity of the remaining dough-conveying element 4 or a base material forming the remaining dough-conveying element 4. Accordingly, the reinforcing fiber arrangement 19 or the reinforcing fibers may or may not be formed of a stiffer material compared to the dough-conveying element, i.e., for example, a comparatively stiffer plastic or metal. However, this is not absolutely necessary, as a stiffening effect, as mentioned, can also result from the arrangement of several corresponding reinforcing fiber arrangements 19 or reinforcing fibers.
[0144] In the embodiment shown in a perspective view in
[0145] The rigidity of the reinforcing base 20 may exceed the rigidity of the remaining dough-conveying element 4 or of a base material forming the remaining dough-conveying element 4. Accordingly, the reinforcing base 20 may be formed of a stiffer material compared to the dough-conveying element 4. However, this is not absolutely necessary, as a stiffening effect can, as mentioned, also result from the arrangement of several corresponding reinforcing bases 20. It is also conceivable that a reinforcing base 20 has an increased rigidity due to a greater thickness compared to the dough-conveying element 4.
[0146]
[0147] This results in the fact that the dough-conveying element 4 (also independently of the presence of a corresponding guiding device) can have a stepped geometry when viewed in cross-section. A stepped geometry of the dough-conveying element 4, viewed in cross-section, can result from a reduced thickness or wall thickness of the lateral regions 8 compared to the dough-supporting region 6, as well as their arrangement or formation on the dough-supporting region 6; it can be seen from Fig. that the lateral regions 8 can be arranged or formed in the region of an upper section of a short side of the dough-supporting region 6 in the case of a dough-supporting region 6 that is (largely) rectangular, viewed in cross-section.
[0148]
[0149]
[0150] The supporting body device 12 can thus comprise two supporting bodies 13 or supporting body portions 13a, 13b which can be arranged and aligned differently relative to a dough 2 placed on the dough-supporting region 6. The alignment of the supporting bodies 13 or supporting body portions 13a, 13b can be performed by a separate guiding device (not shown) which moves the supporting bodies 13 or supporting body portions 13a, 13b into the corresponding arrangement or alignment relative to a respective first or second lateral region portion 8a, 8b.
[0151] Accordingly, the lateral regions 8 can also comprise two lateral region portions 8a, 8b that can be arranged and aligned differently relative to a dough 2 placed on the dough-supporting region 6. In this context, a respective first lateral region portion 8a can in particular be arranged and aligned relative to a dough 2 placed on the dough-supporting region 6 such that it laterally surrounds or supports the dough 2, and a respective second lateral region portion 8b can in particular be arranged and aligned relative to the dough 2 placed on the dough-supporting region 6 such that it surrounds or supports the dough 2 at least in sections on the upper side. Support of the dough 2 on the underside is provided by the dough-supporting region 6.
[0152] The two lateral region portions 8a, 8b can thereby be independently arranged and aligned in different arrangements or alignments relative to the dough-supporting region 6 or a dough 2 placed on the dough-supporting region 6.
[0153] As shown in
[0154] For all embodiments, the system 1 can comprise a tensioning device (not shown) that (mechanically) tensions the dough-conveying element 4, in particular in the longitudinal direction of the dough-conveying element 4. A corresponding tensioning device is arranged for generating a tensioning force tensioning the dough-conveying element 4, in particular in the longitudinal direction of the dough-conveying element 4. A corresponding tensioning device may comprise one or more tensioning elements acting on the dough-conveying element 4 for tensioning the dough-conveying element 4. Corresponding tensioning elements may be tensioning springs, for example.
[0155] In all embodiments, the dough-conveying element 4 may be formed of, for example, a natural or synthetic elastomeric material or a natural or synthetic resin material, in particular a PU resin material.
[0156] The lateral regions 8 can have a lower hardness compared to the dough-supporting region 6. For example, the lateral regions 8 can have a hardness in a range between 70 and 80 Shore A, whereas the dough-supporting region 6 has a hardness of at least 95 Shore A.
[0157] All embodiments can be combined with or among each other as desired. Thus, individual, several or all features of one embodiment can be combined with individual, several or all features of at least one other embodiment.