Device and method for shaping food dough

Abstract

A device (1) for shaping food dough according to the present invention includes: a supply conveyor (11) for overlapping rod-like food dough (F1) and conveying continuous rod-like food dough (F2) in a conveyance direction (C1); a shaping roller device (4) for shaping the continuous rod-like food dough (F2) into a belt-like food dough (F3); and a food dough deformation device (3) for deforming an overlapping part (FB) of the continuous rod-like food dough (F2). The food dough deformation device (3) includes a cutting device (30) for making cuts (FZ) in the overlap part (FB) at a prescribed interval (FH) in the conveyance direction (C1).

Description

Food dough shaping device and shaping method

[0001] The present invention relates to a food dough shaping device that shapes food dough such as bread dough into a strip shape, and more particularly to a food dough shaping device that includes a food dough deforming device that deforms food dough, and a food dough shaping method that deforms food dough.

[0002] Various food dough shaping devices have been proposed. The device disclosed in Patent Document 1 is a machine for producing strip-shaped food dough, which includes a dividing hopper for storing the food dough, a cutting device arranged at the lower opening of the dividing hopper, a conveying device arranged below the cutting device, an eccentric roller for intermittently pressing the food dough from above, and a shaping hopper with a group of hopper rollers facing each other at the front and rear.

[0003] Japanese Patent Application Publication No. 11-289963

[0004] In the device of Patent Document 1, the overlapping portions of the dough rods conveyed by the conveying device (the portions where the rear end of one dough rod overlaps the front end of the next dough rod) are doubled up and down, making the dough thicker and less likely to stretch than the other portions. This creates a problem in that the dough's physical properties, such as stretchability, ease of deformation, and fluidity, differ between the overlapping portions and the other portions, resulting in an unstable weight of the dough formed into a strip in the subsequent forming hopper.

[0005] The present invention is intended to solve the above-mentioned problems, and aims to provide a food dough shaping device and a shaping method equipped with a food dough deforming device that can deform food dough before shaping it into a strip shape, thereby making the physical properties of the food dough uniform, such as the degree of stretch, ease of deformation, and fluidity, and stabilizing the weight.

[0006] In order to achieve this object, the present invention provides a food dough shaping device, which is characterized by including a shaping roller device that shapes rod-shaped food dough into strip-shaped food dough, and a food dough deformation device that deforms predetermined positions of the rod-shaped food dough supplied to the shaping roller device at predetermined intervals.

[0007] In the above embodiment, the food dough deforming device is preferably a cutting device that makes cuts in the rod-shaped food dough.

[0008] In the above embodiment, the cutting device is preferably capable of adjusting the depth of the cuts made in the rod-shaped food dough.

[0009] In the above embodiment, the cutting device is preferably configured to make cuts in the stick-shaped food dough in the thickness direction, leaving a remaining thickness.

[0010] In addition, in the above embodiment, the food dough shaping device preferably includes a hopper for storing lumps of food dough, a dividing device located at the bottom of the hopper for dividing the lumps of food dough into stick-shaped food dough, and a supply conveyor located below the dividing device for supplying the stick-shaped food dough to the shaping roller device, and the supply conveyor operates intermittently to overlap the rear end of the divided stick-shaped food dough with the front end of the next stick-shaped food dough to be divided, thereby supplying the continuous stick-shaped food dough to the shaping roller device.

[0011] In the above embodiment, the dividing device is preferably a dividing device including a star cutter.

[0012] In the above embodiment, the food dough shaping device preferably includes a guide device that guides the rod-shaped food dough to the shaping roller device, and the guide device is a belt conveyor.

[0013] In order to achieve this object, the present invention provides a food dough shaping method, comprising the steps of: (a) placing a block of food dough in a hopper and dividing it into rod-shaped food dough pieces using a dividing device located at the bottom of the hopper; (b) intermittently transporting the divided rod-shaped food dough pieces using a supply conveyor and overlapping the rear end of each rod-shaped food dough piece with the front end of the next rod-shaped food dough piece to form continuous rod-shaped food dough pieces; (c) deforming predetermined positions of the continuous rod-shaped food dough pieces at predetermined intervals using a food dough deforming device; and (d) shaping the deformed continuous rod-shaped food dough pieces into strip-shaped food dough pieces using a shaping roller device.

[0014] In the step (c), the food dough deforming device is a cutting device, and is characterized in that it makes cuts at predetermined positions and at predetermined intervals in the continuous rod-shaped food dough.

[0015] In the step (c), the continuous rod-shaped food dough is cut in the thickness direction, leaving a remaining thickness.

[0016] In the step (c), the continuous rod-shaped food dough is cut in such a manner that both end portions in the width direction are left uncut.

[0017] According to the present invention, it is possible to stabilize the weight of the shaped strip-shaped food dough.

[0018] Fig. 1 is a front view schematically showing a food dough shaping device according to an embodiment of the present invention; Fig. 2 is a cross-sectional view schematically showing a food dough shaping device according to an embodiment of the present invention; Fig. 3 is an enlarged cross-sectional view schematically showing a food dough transforming device according to an embodiment of the present invention; Fig. 4 is an enlarged front view conceptually showing a food dough shaping process using a food dough shaping device equipped with a food dough transforming device according to an embodiment of the present invention; Fig. 5 is a perspective view schematically showing food dough transformed by a food dough transforming device according to an embodiment of the present invention, continuously overlapping.

[0019] As shown in Figures 1 to 5, a food dough shaping device 1 according to an embodiment of the present invention includes a main frame 6, a hopper 7, a dividing device 9 that divides the food dough F stored in the hopper 7 into rod-shaped food dough F1, a supply conveyor 11 that connects the rod-shaped food dough F1 to form a continuous rod-shaped food dough F2 and supplies it to a shaping roller device 4 (described later), a food dough deforming device 3 that deforms the continuous rod-shaped food dough F2 at the downstream end of the supply conveyor 11, a shaping roller device 4 that shapes the continuous rod-shaped food dough F2 into a strip-shaped food dough F3, a guide device 5 that guides the continuous rod-shaped food dough F2 to the shaping roller device 4, a first transport conveyor 13 that transports the strip-shaped food dough F3 shaped by the shaping roller device 4, a weighing and cutting device 17 that cuts the strip-shaped food dough F3 into flat food dough F4, and a control device 29.

[0020] The hopper 7 is disposed on the upper portion of the main frame 6 and includes an upper portion including a dough inlet and a bottom portion including a dough outlet. The hopper 7 is configured to accommodate large lumps of food dough F, such as bread dough.

[0021] The dividing device 9 is disposed at the bottom of the hopper 7. The dividing device 9 is configured to divide the food dough F contained in the hopper 7 into rod-shaped food dough F1 and convey the divided dough pieces downward. In this embodiment, the dividing device 9 is a dividing cutter device, such as that shown in Patent Document 1. Generally, the dividing cutter device includes a star cutter, which includes two parallel rotating shafts, with three cutter blades attached to each rotating shaft. The dividing cutter device is configured to divide the food dough F into rod-shaped food dough F1 by rotating the two rotating shafts in opposite directions by a predetermined angle. A detailed description of this device, which is a known technology, will be omitted.

[0022] The supply conveyor 11 is disposed below the dividing device 9. The supply conveyor 11 is configured to operate intermittently to connect the rod-shaped food dough F1 cut to a predetermined length by the dividing device 9 and drop it, and to convey a continuous rod-shaped food dough F2 in a conveying direction C1 (to the right in FIGS. 1 and 2). The supply conveyor 11 includes a drive roller 11A, a tip roller 11B, a conveyor belt 11C, a motor M3 that drives the drive roller 11A, and an encoder (not shown).

[0023] The shaping roller device 4 is disposed below the downstream end of the supply conveyor 11. The shaping roller device 4 is configured to shape the continuous rod-shaped food dough F2 into a band-shaped food dough F3. The shaping roller device 4 includes six rotating rollers arranged in a V-shape. These rotating rollers are configured to oscillate periodically while rotating. A detailed description of this device will be omitted as it is a known technology.

[0024] 3, the guide device 5 is configured to guide the continuous rod-shaped food dough F2 conveyed by the supply conveyor 11 to the shaping roller device 4, thereby allowing the continuous rod-shaped food dough F2 to smoothly enter the shaping roller device 4. The guide device 5 includes a drive roller 5A, a driven roller 5B, a conveyor belt 5C, and a motor M2 (see FIG. 2) that drives the drive roller 5A.

[0025] The first transport conveyor 13 is configured to transport the food dough F3, which has been shaped into a strip of approximately uniform thickness by the shaping roller device 4, in a transport direction C2 (leftward in FIGS. 1 and 2). The first transport conveyor 13 includes an alignment device 15 that detects the center of the width of the transported strip of food dough F3 and aligns it to a predetermined position.

[0026] The weighing and cutting device 17 is configured to weigh and cut the strip-shaped food dough F3 into flat food dough pieces F4. The weighing and cutting device 17 includes a second conveyor 18 disposed downstream of the first conveyor 13, a cutter 19 that cuts the strip-shaped food dough F3 into two rows, an expanding conveyor 21 that separates the two rows of cut strip-shaped food dough F3, a cutting device 27 that cuts the separated strip-shaped food dough F3 into flat food dough pieces F4, and a first weighing conveyor 23 and a second weighing conveyor 25 that weigh the cut flat food dough pieces F4.

[0027] The cutter 19 is preferably disk-shaped and cuts the center of the strip-shaped food dough F3 aligned by the alignment device 15 along the conveying direction. Two spreading conveyors 21 are arranged side by side in the width direction above the second conveyor 18 and spread the two cut strip-shaped food dough pieces F3 widthwise and convey them downstream. The cutting device 27 is arranged side by side in the width direction above the downstream end of the second conveyor 18 and is configured to cut each of the two cut strip-shaped food dough pieces F3 into flat food dough pieces F4. The first weighing conveyor 23 weighs the weight of the conveyed strip-shaped food dough F3 and sends a signal to the control device 29 to operate the cutting device 27 when the weight reaches a predetermined weight. The second weighing conveyor 25 is configured to weigh the flat food dough pieces F4 cut by the cutting device 27.

[0028] The control device 29 is a device that controls the operations of the above-mentioned devices, and includes, for example, a computer.

[0029] The food dough transformation device 3 is configured to deform the continuous rod-shaped food dough F2 conveyed by the supply conveyor 11. The food dough transformation device 3 is disposed above the downstream end of the supply conveyor 11 and above the shaping roller device 4. In this embodiment, the food dough transformation device 3 includes a cutting device 30 that makes cuts at predetermined intervals in a direction perpendicular to the conveyance direction C1 into the continuous rod-shaped food dough F2 from above.

[0030] The slitting device 30 includes a plate-shaped cutter member 30A that makes slits in the continuous rod-shaped food dough F2, an arm 30B fixed to the cutter member 30A, a motor M1 for moving the cutter member 30A up and down, a link 30C attached to the drive shaft of the motor M1, and a rod 30D rotatably connected to the link 30C and the arm 30B. The plate-shaped cutter member 30A is configured to make slits FZ in the continuous rod-shaped food dough F2 in a direction perpendicular to the conveying direction of the supply conveyor 11. The arm 30B includes one end rotatably supported by a bearing attached to the main frame 6, the other end to which the cutter member 30A is attached, and an intermediate portion to which one end of the rod 30D is rotatably attached. The other end of the rod 30D is rotatably attached to one end of the link 30C, and the other end of the link 30C is attached to the drive shaft of the motor M1. In this way, the cutting device 30 is provided with a crank mechanism, and is configured to move the cutter member 30A up and down by the rotation (reciprocating motion) of the motor M1.

[0031] Thus, the food dough deformation device 3 (cutting device 30) can make cuts FZ perpendicular to the conveying direction C1 at predetermined intervals in the continuous rod-shaped food dough F2 being transported in the conveying direction C1 by the supply conveyor 11.

[0032] Furthermore, by adjusting the rotation angle of the motor M1, the cutting device 30 can adjust the lower end position of the up-and-down movement of the cutter member 30A connected to the motor M1 via a crank mechanism, i.e., the depth of the cuts FZ, in accordance with the physical properties of the rod-shaped food dough F2. Furthermore, the cutting device 30 can make the cuts FZ over a predetermined section FP (including the overlapping portion FB) of the continuous rod-shaped food dough F2.

[0033] The cutting device 30 is preferably controlled by the control device 29 so as not to completely cut the rod-shaped food dough F2 having a thickness T1. In this embodiment, the remaining thickness DT of the continuous rod-shaped food dough F2 after cutting is 10 mm. The remaining thickness DT may be changed as appropriate depending on the physical properties of the food dough.

[0034] 5, the incision length (length of the incision FZ) W2 of the plate-shaped cutter member 30A of the incision device 30 is preferably smaller than the width W1 of the continuous rod-shaped food dough F2. In this embodiment, the width W1 of the food dough F2 is approximately 380 mm, and the incision length W2 of the plate-shaped cutter member 30A is 270 mm. The incision length W2 of the incision FZ may be changed as appropriate depending on the physical properties and width W1 of the continuous rod-shaped food dough F2.

[0035] Next, an embodiment of the food dough shaping method according to the present invention (dough shaping step) will be described with reference to Figures 4 and 5. The food dough F is, for example, bread dough.

[0036] A large lump of dough F is supplied to a hopper 7 located at the top of the dough shaping device 1. The lump of dough F is divided into dough sticks F1 by a dividing device 9 located at the bottom of the hopper 7, and the dough sticks F1 are supplied to a supply conveyor 11 located below the dividing device 9. The divided dough sticks F1 are transported in the conveying direction C1 by the supply conveyor 11. A sensor (not shown) detects the start of rotation of the dividing device 9 and sends a corresponding signal to the control device 29. The control device 29 calculates the movement distance of the dough sticks F1 on the supply conveyor 11 based on a signal input from the sensor and a signal input from an encoder (not shown) of the motor M3 of the supply conveyor 11. After the dough sticks F1 have moved a predetermined distance, the supply conveyor 11 is stopped. The next dough stick F1 is divided by the dividing device 9 and supplied to the supply conveyor 11. At this time, the next rod-shaped food dough F1 is fed so that its leading end FS overlaps the trailing end of the previous rod-shaped food dough F1. The continuous (overlapping) rod-shaped food dough F2 is fed to the shaping roller device 4.

[0037] A cutting device 30 disposed at the downstream end of the supply conveyor 11 makes incisions FZ at predetermined intervals FH in the overlapping portions FB of the continuous rod-shaped food dough F2. The control device 29 calculates the distance traveled by the continuous rod-shaped food dough F2 on the supply conveyor based on signals input from a sensor (not shown) of the dividing device 9 and an encoder (not shown) of the motor M3 of the supply conveyor 11. When the conveying leading edge FS of a rod-shaped food dough F1 in the conveyed continuous rod-shaped food dough F2 moves a predetermined distance FG after the cutter member 30A on the supply conveyor 11 reaches the conveying leading edge FS, the control device 29 activates the cutting device 30, moving the cutter member 30A from the raised end (standby position) to the lowered end to make incisions FZ in the food dough F2.

[0038] At this time, it is desirable that the control device 29 stops the downward movement of the cutter member 30A at a position where the leading end of the cutter member 30A is the thickness DT of the food dough above the conveying surface of the conveyor belt 11C of the supply conveyor 11 (at a position where the thickness DT of the food dough remains). In this embodiment, the remaining thickness DT is approximately 10 mm, but is not limited to this and may be changed as desired depending on the dough or the condition of the dough.

[0039] If the rod-shaped food dough F1 with thickness T1 is completely cut, the cut pieces of food dough F1 will have difficulty re-binding within the shaping roller device 4, and the weight of the strip-shaped food dough F3 obtained in the subsequent shaping process will become unstable. Therefore, it is desirable to leave the incisions FZ only for the remaining thickness DT. Furthermore, if the continuous rod-shaped food dough F2 is completely cut in the width direction W1, the cut pieces of dough will have difficulty re-binding within the shaping roller device 4, and the weight of the strip-shaped food dough F3 obtained in the subsequent shaping process will become unstable. Therefore, it is desirable to leave the incisions FZ at both ends of the width W1 direction of the continuous rod-shaped food dough F2.

[0040] The control device 29 stops (standbys) the cutter member 30A at the lower end for a predetermined time, and then moves it to the upper end. In this embodiment, the stop (standby) time at the lower end is 0.1 seconds. However, the stop (standby) time is not limited to this and may be changed depending on the dough or its condition. The supply conveyor 11 continues to drive while the cutter member 30A is stopped (standby) at the lower end. Thus, by changing the time that the cutter member 30A is stopped (standby) at the lower end, the opening degree of the slit FZ in the conveying direction can be adjusted.

[0041] As shown in FIG. 3 , the control device 29 moves the cutter member 30A to the upper end, and when the continuous rod-shaped food dough F2 has moved a predetermined interval (distance) FH, the incision device 30 is activated, moving the cutter member 30A from the upper end (standby position) to the lower end, making incisions FZ in the continuous rod-shaped food dough F2. These operations are repeated, making incisions FZ at the predetermined interval FH in a predetermined section FP including the overlapping portion FB. The distance FG, the predetermined interval FH, and the predetermined section FP are input into the control device 29 as appropriate and can be changed as desired. In other words, the control device 29 can adjust the timing to start making incisions FZ, the depth of the incisions FZ, the interval between the incisions FZ, and the timing to end making the incisions FZ for the continuous rod-shaped food dough F2 depending on the dough or its condition.

[0042] The continuous rod-shaped food dough F2 with the cuts FZ made at predetermined positions is conveyed to the shaping roller device 4 while being guided by the guide device 5. At this time, it is preferable to adjust the speed of the conveyor belt 5C of the guide device 5 according to the degree to which the continuous rod-shaped food dough F2 enters the shaping roller device 4.

[0043] A continuous rod-shaped food dough F2, with incisions FZ made at predetermined intervals FH in a predetermined section FP, is shaped into a strip-shaped food dough F3 by the shaping roller device 4. At this time, the incisions FZ are made in the section FP of the continuous rod-shaped food dough F2, including the overlapping section FB and a portion upstream of it. This promotes (improves) the flow deformation of the thick, less stretchable portion of the dough (section FP). This makes the physical properties, such as the degree of stretch, ease of deformation, and fluidity, uniform between the section with and without the incisions FZ. As a result, the weight of the strip-shaped food dough F3 conveyed from the shaping roller device 4 can be made uniform.

[0044] The strip-shaped food dough F3 shaped by the shaping roller device 4 is transported by the first transport conveyor 13, cut into flat food dough F4 of a predetermined weight by the downstream weighing and cutting device 17, and transported to the downstream device.

[0045] The overlapping portion FB is thicker than the other portions, and has poor stretchability and fluidity within the shaping roller device 4, making it difficult to deform. This tends to result in a high density and a heavy weight. The same is true for the section FP, which includes a portion upstream of the overlapping portion FB. Therefore, conventional devices have a problem of unstable weight for the strip-shaped food dough. However, the food shaping device of the present invention, as described above, makes cuts FZ in the overlapping portion FB or in the required section (predetermined section FP) including the overlapping portion FB, thereby enabling the strip-shaped food dough to have physical properties such as stretchability, ease of deformation, and fluidity similar to those of sections without cuts FZ. This makes it possible to stabilize the weight of the strip-shaped food dough after shaping.

[0046] The food dough shaping device 1 equipped with the food dough transformation device 3 according to the present invention has been generally described above, but various modifications are possible within the scope of the claims. In the above embodiment, the food dough transformation device 3 is a cutting device 30 including a plate-shaped cutter member 30A, but it may also be a cutting device including two or more plate-shaped members.

[0047] Furthermore, in the above embodiment, the food dough deforming device 3 is the cutting device 30, but it may also be a pressing device that deforms dough using a pressing member having a tip shape such as a triangular prism.

[0048] The shape of the cutter member 30A may be any shape as long as it can cut a slit into the fabric, and may be a straight line, an arc, a wave, etc. The direction of the slit FZ does not have to be perpendicular to the conveyance direction C1, and may be at any angle relative to the conveyance direction C1.

[0049] Furthermore, the operation of the cutting device 30 of the food dough transformation device 3 may be controlled so that after making a cut in the rod-shaped food dough F1, it stops with the cut in place for a predetermined period of time depending on the physical properties of the food dough.

[0050] Furthermore, in the food dough transformation device 3 of the above embodiment, the cutting device 30 is driven by a motor and crank mechanism, but it may also be driven by an air cylinder mechanism.

[0051] Furthermore, the depth of the cuts FZ may be constant at all times, or may be changed as appropriate depending on the condition of the fabric in the area where the cuts are to be made.

[0052] In the above embodiment, the food dough transformation device 3 is disposed upstream of the shaping roller device 4, but this is not limiting. For example, the food dough transformation device 3 may be disposed upstream of the strip-shaped food dough spreading device. In this embodiment, the physical properties of the food dough are homogenized by the food dough transformation device 3, and then the food dough is spread by the spreading device. This makes it possible to stabilize the weight of the strip-shaped food dough after spreading.

[0053] REFERENCE SIGNS LIST 1 Food dough shaping device 3 Food dough deformation device 4 Shaping roller device 5 Guide device 7 Hopper 9 Divider 11 Supply conveyor 30 Cutting device C1 Conveying direction F Food dough F1 Rod-shaped food dough F2 Continuous rod-shaped food dough F3 Strip-shaped food dough FB Overlap portion FH Predetermined interval FZ Cut DT Remaining thickness of rod-shaped food dough F2

Claims

1. A food dough shaping device (1) comprising: a supply conveyor (11) that overlaps rod-shaped food dough (F1) and conveys a continuous rod-shaped food dough (F2) in a conveying direction (C1); a shaping roller device (4) that shapes the continuous rod-shaped food dough (F2) into a strip-shaped food dough (F3); and a food dough deforming device (3) that deforms an overlapping portion (FB) of the continuous rod-shaped food dough (F2), wherein the food dough deforming device (3) includes a cutting device (30) that makes incisions (FZ) in the overlapping portion (FB) at predetermined intervals (FH) in the conveying direction (C1).

2. The food dough shaping device (1) according to claim 1, wherein the cuts (FZ) are in a direction perpendicular to the conveying direction (C1).

3. The food dough shaping device (1) according to claim 1, wherein the cutting device (30) is capable of adjusting the cutting depth of the cuts (FZ).

4. The food dough shaping device according to claim 1, wherein the cutting device (30) is configured to leave a remaining thickness (DT) in the continuous rod-shaped food dough (F2) by the cutting (FZ).

5. A food dough shaping device as described in claim 1, wherein the cutting device (30) includes a plate-shaped cutter member (30A), and the cutting length (W2) of the cutter member (30A) is smaller than the width (W1) of the continuous rod-shaped food dough (F2).

6. The food dough shaping device (1) according to claim 1, further comprising: a hopper (7) for storing lumps of food dough (F); and a dividing device (9) disposed at the bottom of the hopper (7) for dividing the lumps of food dough (F) into stick-shaped food dough (F1), wherein the supply conveyor (11) is disposed below the dividing device (9) and is configured to operate intermittently to overlap the front ends of the divided stick-shaped food dough (F1) with the rear ends of the previously divided stick-shaped food dough (F1) to form continuous stick-shaped food dough (F2), and to supply the continuous stick-shaped food dough (F2) to the shaping roller device (4).

7. The food dough shaping device (1) according to claim 6, wherein the dividing device (9) comprises a star cutter.

8. The food dough shaping device according to claim 1, further comprising a guide device (5) for guiding the continuous rod-shaped food dough (F2) to the shaping roller device (4), the guide device (5) being a belt conveyor.

9. A food dough shaping method, comprising: (a) dividing a block of food dough (F) stored in a hopper (7) into rod-shaped food dough (F1) by a dividing device (9) arranged at the bottom of the hopper (7); (b) intermittently conveying the divided rod-shaped food dough (F1) in a conveying direction (C1) by a supply conveyor (11) so that the front end of the next rod-shaped food dough (F1) overlaps the rear end of the previous rod-shaped food dough (F1), thereby forming a continuous rod-shaped food dough (F2); and (c) making incisions (FZ) in the overlapping portions (FB) of the continuous rod-shaped food dough (F2) at predetermined intervals (FH) in the conveying direction (C1) by a cutting device (30). (d) shaping the continuous rod-shaped food dough (F2) with the cuts (FZ) into a belt-shaped food dough (F3) using a shaping roller device (4).

10. The food dough shaping method of claim 9, wherein the step (c) includes the food dough deformation device (3) making cuts in a direction perpendicular to the conveying direction (C1) in the overlapping portion (FB) of the continuous rod-shaped food dough (F2) at predetermined intervals (FH) in the conveying direction (C1).

11. A food dough shaping method as described in claim 10, wherein in step (c), the incision (FZ) leaves the continuous rod-shaped food dough (F2) to a thickness (DT) in the thickness direction.

12. A food dough shaping method according to claim 10, wherein in step (c), the incisions (FZ) leave both end portions in the width direction of the continuous rod-shaped food dough (F2).

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