TWI661774B - Dough sheet extension method, dough sheet extension device, and rolled-up dough shaping device provided with dough sheet extension device - Google Patents

Abstract

The present invention relates to a dough piece stretching device for stretching a dough piece, such as a croissant dough before rolling, which is formed into a substantially triangular shape in advance, and a method for stretching the dough piece, and a method for stretching the dough A rolling device for rolling up a sheet, a rolling dough shaping device for rolling up an extended dough sheet while correcting a shape, and a rolling dough shaping method. The dough sheet spreading device is provided with a conveying device (7) for conveying the dough sheet (3), and a spreading roller (9) arranged above the conveying device (7). A plurality of protruding portions (9B) are provided on the outer periphery in the circumferential direction.

Description

Dough sheet extension method, dough sheet extension device, and rolled-up dough shaping device provided with dough sheet extension device

The present invention relates to a dough piece stretching device for stretching a dough piece, such as a croissant dough before rolling, which is formed into a substantially triangular shape in advance, and a method for stretching the dough piece, and a method for stretching the dough. A rolling device for rolling up a sheet, a rolling dough shaping device for rolling up an extended dough sheet while correcting a shape, and a rolling dough shaping method.

Conventionally, for example, in the case of making croissants, a belt-shaped food dough (layered dough) conveyed in a longitudinal direction by a belt conveyor as a conveying means is cut into an isosceles triangle by a cutting device. The direction of the dough piece is made constant so that the bottom side of the dough piece cut into a triangular shape becomes the downstream side. Then, the dough pieces in a triangular shape are rolled up from the bottom side toward the top side of the triangle by a rolling device, thereby forming a linear croissant with a thick central portion and thin ends.

However, when the center line of the triangular shaped dough pieces does not match the conveying direction of the belt conveyor and is rolled up obliquely, or the formed dough pieces In the case of a curved shape instead of an isosceles triangle, there is a problem that the center position of the croissant after the top is rolled up is shifted to the end side, and the shape is not a symmetrical spindle shape.

For example, as a conventional roll-up device provided with a dough sheet spreading device, there are devices such as the following. The roll-up device is arranged on the downstream side of a pair of upper and lower rolls, and is closer to the upstream side of the roll. A dough sheet pressing device composed of a plurality of belts is provided, the plurality of belts are stretched and erected between at least two rollers arranged in parallel on the conveying surface, so that the belt is slower than the extension roller, and is used in conjunction with The conveyor that conveys the dough pieces operates at the same speed (see Patent Document 1).

In addition, as other conventional dough sheet spreading devices, there are devices as follows, which are located near the upstream side of the spreading rollers of a pair of upper rollers and lower rollers, and are provided with a first belt conveyor A second belt conveyor is provided near the downstream side of the extension roller, and a pressing roller is provided on the upstream side of the upper roller above the downstream end of the first belt conveyor. Further, the upper roller and the pressing roller are provided so as to be vertically movable integrally. In addition, the peripheral speed of the pressing roller is approximately the same as the conveying speed of the first belt conveyor, and the peripheral speed of the upper and lower spreading rollers and the conveying speed of the second belt conveyor are set to be faster than those of the first belt conveyor. It can move faster.

In addition, a sensor for detecting the dough pieces being conveyed is provided above the first belt conveyor and on the upstream side of the pressing roller. The pressing roller and the upper roller are used to calculate the conveying position of the dough piece according to the detection signal from the sensor when the dough piece is in a state of waiting for conveyance in a rising state. Stretch After the center position of the roller, the pressing roller and the upper roller are lowered to the set height position, and the dough pieces are pressed.

Next, the dough piece is stretched in the conveying direction, and is extended long toward the top side (see Patent Document 2).

[Prior technical literature] [Patent Literature]

Patent Document 1: Japanese Unexamined Patent Publication No. 2-78082

Patent Document 2: Japanese Patent Application Laid-Open No. 2010-172228

The dough sheet spreading device described in Patent Document 1 discloses a technique for solving the problem that when the dough sheet is stretched by a stretch roll, the dough is unevenly formed by air bubbles in the dough, and the dough is expanded. The sheet extends unevenly, causing the top side to bend. That is, the conventional dough sheet stretching device is used to prevent the dough sheet from being bent when the dough sheet is stretched. In the case where the dough sheet supplied in a bent state is stretched, it will not be appropriate. The bending is corrected, and the bending direction is extended long in the conveying direction directly. Therefore, there is a problem that the rolled position of the top of the rolled croissant is deviated from the center position to the end side, and the shape is not a symmetrical spindle shape.

In addition, there are cases where the center line of the triangular shaped dough pieces does not coincide with the conveying direction of the belt conveyor and is conveyed obliquely. One of the corners of the bottom of the dough piece will contact the pressing roller earlier than the corners of the other orientations, further contributing to the problem of the tilt of the dough piece. In order to solve this problem, the dough sheet spreading device described in Patent Document 2 keeps the pressing roll and the upper roll on standby until the bottom of the dough sheet passes the center of the upper and lower spreading rolls. This makes it possible to suppress the tilt of the dough pieces that promote the triangle shape, but it is not possible to correct the tilt.

Moreover, when the dough piece after shaping | molding is not supplied in an isosceles triangle shape, and it is supplied in a curved state, it is also impossible to correct this dough piece to a substantially isosceles triangle shape.

Therefore, there is a problem that the shape of the rolled croissant does not become a symmetrical spindle shape.

The present invention has been made in view of the conventional problems as described above. In the invention of the first aspect, the present invention is a dough sheet spreading device having the following structure, which is a dough for spreading a substantially triangular dough sheet The sheet stretching device includes a mounting table on which the dough pieces are placed, and a stretching roller that rotates above the mounting table. The stretching roller is provided with a plurality of protrusions formed along the circumferential direction. The relative movement of the setting table and the extension roller extends the dough piece.

In the invention according to the second aspect, the dough sheet spreading device having the following structure is provided. In the dough sheet stretching device according to the first aspect of the invention, the mounting table is used to advance the dough sheet to the downstream side. Carrying device for carrying.

In the invention according to the third aspect, the dough sheet spreading device having the following structure is provided. In the dough sheet spreading device according to the second aspect, the distance between the conveying device and the spreading roller is adjustable.

In addition, in the invention according to the fourth aspect, the dough sheet spreading device having the following structure is provided. The dough sheet spreading device according to the second or third aspect of the invention is provided with an actuator and a sensor. The actuator is used to relatively raise and lower the spreading roller with respect to the conveying device; the sensor is used to detect the dough piece conveyed to the upstream side of the spreading roller, and is provided with a control device based on the sensing The detection signal of the actuator controls the aforementioned actuator.

In the invention according to the fifth aspect, the dough sheet spreading device having the following structure is provided. The dough sheet spreading device according to the fourth aspect of the invention is provided with a control device which is based on the detection by the aforementioned sensor. The signal is used to calculate the conveyance position of the dough piece, and the actuator is controlled so that the lower edge of the dough piece passes below the center position of the extension roller, and then the extension roller is lowered to move the dough. The film is stretched.

In the invention according to the sixth aspect, the dough sheet spreading device having the following structure is provided. In the dough sheet spreading device according to any one of the second to fifth aspects, the conveying device includes: A conveying device, and a second conveying device arranged on the downstream side of the first conveying device, the extension roller is provided with the conveying device arranged on the first conveying device; The upstream-side extension roller and the downstream-side extension roller disposed above the second conveying device.

Furthermore, in the invention according to the seventh aspect, the rolling device having the following structure is disposed on the carrying device for conveying the dough pieces, and includes a rotating wheel, a rolled sheet, and a pressing plate. Is formed by a deformable flexible member for rolling up the dough piece; the pressing plate is used for pressing the upstream side of the rolled-up sheet.

In the eighth aspect of the invention, a rolling device having the following structure is provided. The rolling device according to the seventh aspect of the invention includes a roll for rolling up the dough piece instead of the pressing plate. The platen, the rolled-up sheet is mounted on the transfer platen.

The invention according to the ninth aspect is a roll-up device having the following structure. The roll-up device according to the seventh or eighth aspect of the invention further includes a take-up sheet disposed on the roll. The downstream side of the lift sheet is made of a deformable flexible member.

In the tenth aspect of the invention, the roll-up device is configured as follows. The roll-up device according to the ninth aspect of the invention further includes a shaping sheet connected to the downstream end of the rolled-up sheet. , And is composed of a deformable flexible member.

In the invention according to the eleventh aspect, the winding device is configured as follows. In the roll device according to any one of the seventh to tenth aspects, the plurality of rotating wheels are for adjustment. The clearance with the conveyance surface of the said conveyance apparatus is comprised so that it can move up and down.

The invention according to the twelfth aspect is the following structure In the rolling device according to the eighth aspect of the invention, the turning plate is provided so as to be able to adjust the position relative to the rotating wheel along the conveying direction of the dough piece.

The invention according to the thirteenth aspect is a roll-up device having the following structure. The roll-up device according to the invention according to any one of the seventh, ninth, and tenth aspects is the roll-up device. At least one of the rolled sheet and the shaping sheet is provided with a long hole or a cutting line at the center in the width direction, and is provided to be deformed into a mountain shape with respect to the width direction along the surface shape of the rolled dough.

In the invention according to the fourteenth aspect, the winding device having the following structure is provided. In the winding device according to the ninth aspect, the winding sheet includes a plurality of sheet members and a mesh member in a width. They are arranged side by side and overlap each other in the direction, and they are combined by a coupling member.

In the invention according to the fifteenth aspect, the roll-up device having the following structure is provided. In the roll-up device according to any one of the seventh, ninth, and tenth aspects, the roll-up sheet is provided. A guide plate for preventing positional displacement of the sheet in the width direction is provided on both sides of at least one of the rolled sheet and the shaping sheet.

In the invention according to the sixteenth aspect, the winding device is configured as follows. In the winding device according to the eighth aspect, the rotating wheel can be adjusted by controlling the rotation of the motor. The aforesaid transfer pressure plate is elastically pressed toward the conveying device side by a baffle plate.

Furthermore, in the 17th aspect of the invention, the rolled dough shaping device having the following structure is used, as in the second to fifth aspects. In the dough sheet spreading device according to any one of the aspects, the conveying device includes a first conveying device and a second conveying device arranged downstream of the first conveying device, and the rolled-up dough shaping device is attached to the second The conveying device is provided with a winding device.

The invention according to claim 18 is a rolled dough shaping device having the following structure. In the rolled dough shaping device according to the invention according to claim 17, the rolling device includes a rotating wheel, a rolled sheet, And a pressing plate, which is composed of a deformable flexible member, for rolling up the dough piece; and a pressing plate, which is used to press the upstream side of the rolled sheet.

The invention according to claim 19 is a rolled dough shaping device having the following structure. In the rolled dough shaping device according to the invention according to claim 17, the rolling device includes a rotating wheel, a rolled sheet, And a transfer plate, the rolled sheet is made of a deformable flexible member, and is used to roll the dough piece; the transfer plate is used to roll the dough piece, and the rolled piece is installed on the roll Turn plate.

In the invention according to claim 20, the rolled dough shaping device having the following structure is provided, and in the rolled dough shaping device according to the invention according to claim 19, the rotary wheel is configured to perform the rotation with respect to the second conveying device. Lifting second actuator and equipped with control device, which will be The dough pieces on the bottom side of the dough pieces are loaded with the solid inner material by the first conveying device, and the conveying position of the dough pieces is calculated based on the detection signal of the sensor, and the actuation will be performed. After the inner material passes below the center position of the extension roller, the extension roller is lowered to extend the dough piece, and the second actuator is controlled to cause the rotation wheel to rise to communicate with The inner material contacts, and after the inner material passes the lower end portion of the rotating wheel, the rotating wheel is lowered to press the dough piece tightly to the second conveying device.

In the invention according to claim 21, the rolled dough shaping device having the following structure is provided. In the rolled dough shaping device according to the invention according to claim 19, the conveying surface of the second conveying device is set to be higher than the conveying surface of the second conveying device. The conveying surface of the first conveying device is higher and a step is provided, and / or the conveying speed of the second conveying device is set to be faster than the conveying speed of the first conveying device and a speed difference is provided. The dough pieces on the bottom side of which the solid inner material is placed are transported by the first conveying device. When the dough pieces are transferred from the first conveying device to the second conveying device, the steps and the The speed difference is such that the bottom side of the dough piece is bent upward, and the end surface of the bottom side is in contact with the rotating wheel, and the dough piece and the inner material are sandwiched between the rotating wheel and the second conveying device. After starting to wind around the inner material, it abuts against the transfer plate, and the dough piece is further wound around the inner material in a state of being sandwiched between the transfer plate and the second conveying device. In this manner for the shaping of the dough rolling apparatus, A second actuator for raising and lowering the rotating wheel with respect to the second conveying device is provided, and a control device is provided for controlling the second actuator such that the dough piece abuts on the pressure plate After that, the rotating wheel is lowered to press the dough piece tightly to the second conveying device, and the actuator is controlled to lower the extension roller to extend the dough piece.

Furthermore, in the invention according to claim 22, the dough sheet extending method has the following structure. The dough sheet is extended in a substantially triangular shape. The dough sheet is provided with a mounting table and a rolling roll. The mounting table is used for loading. The dough roll is rotated above the mounting table, and the extension roller is provided with a plurality of protrusions formed along the circumferential direction, and is opposed to the stretching roller by the mounting table. When the dough piece is moved to stretch the dough piece, when the dough piece is sandwiched between the mounting table and the stretching roller and passed, the protrusion piece portion restrains the dough piece from moving in the width direction and makes the dough The retained dough of the sheet is pushed back toward the upstream side along the aforementioned moving direction, and is stretched on one side.

In addition, in the invention according to claim 23, the dough sheet extension method having the following structure is provided. In the dough sheet extension method according to the invention of claim 22, the extension roller is provided to be capable of being raised and lowered with respect to the mounting table. When the bottom edge of the dough piece on the downstream side passes below the extension roller, the distance between the extension roller and the mounting table is relatively far away, and after the bottom edge passes below the center position of the extension roller, The interval is close to a required interval to stretch the dough piece.

Furthermore, in the invention according to claim 24, the rolled dough shaping method having the following structure is used. The dough sheet stretching method according to the invention according to claim 22 is used, and the placing table conveys the dough sheet to the downstream side. The device is provided with a rolling device on the downstream side of the spreading roller, and after the dough piece is stretched by the spreading roller, the roll is rolled by the rolling device.

The invention according to claim 25 is a rolling dough shaping method having the following structure. In the method for rolling dough shaping according to the invention according to claim 24, the dough pieces are placed on the extension roller and the conveying device. The first conveying device provided is extended, and the rolling device is disposed above the second conveying device provided in the conveying device. When the dough piece is rolled, the rotating wheel provided in the rolling device will The dough pieces are tightly pressed onto the second conveying device.

In the invention according to claim 26, the rolling dough shaping method having the following structure is provided. In the method for rolling dough shaping according to the invention according to claim 24, the upper surface of the bottom side of the dough piece is placed. The dough pieces having a solid inner material are conveyed by the first conveying device. When the inner material on the dough piece passes below the extension roller, the extension roller is raised to move away from the inner material, and passes through the inner material. After the center position of the spreading roll is lowered, the spreading roll is lowered to stretch the dough piece. The rolling device is a rotating wheel set to be able to lift and lower relative to the conveying device. When the material passes under the rotating wheel, the rotating wheel is raised to contact the inner material, and after the inner material passes through the lower end portion of the rotating wheel, the rotating The runner is lowered to press the dough piece tightly onto the second conveying device.

The invention according to claim 27 is a rolling dough shaping method having the following structure. In the method for rolling dough shaping according to the invention according to claim 26, when the rotating wheel is in contact with the inner material, the rolling The lifting device starts to roll up the aforementioned dough pieces.

In the invention according to claim 28, the rolling dough shaping method having the following structure is provided. In the method for rolling dough shaping according to the invention according to claim 24, the conveying surface of the second conveying device of the rolling device is provided. It is set higher than the conveying surface of the first conveying device and is provided with a step, and / or the conveying speed of the second conveying device is set to be faster than the conveying speed of the first conveying device and a speed difference is provided. The dough pieces having a solid inner material placed on the upper side of the bottom side of the dough pieces are conveyed by the first conveying device, and when the dough pieces are transferred from the first conveying device to the second conveying device , Using the aforementioned step and / or speed difference, the bottom side of the dough piece is bent upward, so that the end face of the bottom side contacts the rotating wheel, and the dough piece and the inner material are sandwiched between the rotating wheel and the second conveying device After the intermediate state is started to be wound around the inner material, it abuts the pressure plate of the rolling device, and the dough piece is further rolled in a state of being sandwiched between the pressure plate and the second conveying device. In the rolling dough shaping method carried out in this manner around the inner material, after the dough piece abuts on the pressure plate, the stretching roll is lowered to stretch the dough piece and rotate the dough piece. The wheel is lowered to press the dough piece tightly onto the second conveying device.

In the invention according to claim 29, the rolling dough shaping method having the following structure is provided. In the method for rolling dough shaping according to the invention according to claim 26 or 28, A concave portion is formed on the upper surface, and an inner material is placed on the concave portion.

According to the present invention, a spreading roller having a protruding portion is provided above the conveying device, and the dough piece is sandwiched and pressed by the conveying device and the spreading roller, so that the dough having a substantially triangular shape formed in a bent state can be formed The sheet is corrected to a shape that approximates an approximately isosceles triangle. In addition, by rolling up the corrected dough pieces with a substantially isosceles triangle shape, the top of the rolled croissant can be placed at the center of the croissant, and a croissant having a symmetrical spindle shape can be manufactured.

1‧‧‧ dough sheet extension device

3‧‧‧ dough pieces

3A‧‧‧Top

3B, 3C‧‧‧ Hypotenuse

3D‧‧‧ bottom

3E‧‧‧Concave

5‧‧‧ the first handling device

5F‧‧‧Front end

7‧‧‧Second handling device

7B‧‧‧ Rear

9‧‧‧ extension roller

9B‧‧‧ protruding section

9BS‧‧‧ bottom

9S‧‧‧outer

10‧‧‧Control device

23‧‧‧Sensor

25‧‧‧ cutting device

61‧‧‧ Roll-up device

71‧‧‧Upstream side pellet extension device

73‧‧‧Extension roller

73B‧‧‧ protruding section

73S‧‧‧outer

91‧‧‧ downstream side pellet extension device

101‧‧‧ Dough sheet stretching device

103, 105, 109‧‧‧ extended dough pieces

111‧‧‧Roller

121‧‧‧Mounting table, conveying device

203, 205, 207, 209‧‧‧ roll up the dough

401‧‧‧Roll up dough shaping device

403‧‧‧Dough sheet extension device

409‧‧‧Extended Roller Section

410‧‧‧Roller

423‧‧‧Roll-up device

425‧‧‧ roll up

427‧‧‧Tightening section

429‧‧‧ plastic surgery department

471‧‧‧ Rollup

501‧‧‧ roll up dough shaping device

503‧‧‧ Roll-up device

505‧‧‧ Rollup

CL‧‧‧ Centerline

R‧‧‧ transport direction

[FIG. 1] A plan view showing the structure of a dough sheet spreading device according to a first embodiment of the present invention.

[FIG. 2] A front view showing the structure of the dough sheet spreading device according to the first embodiment of the present invention.

[FIG. 3] An explanatory view showing the structure of a cutting device provided on the upstream side of the dough sheet spreading device according to the first embodiment of the present invention, (a) is a plan view, and (b) is a front view.

[Fig. 4] shows the dough sheet extension of the first embodiment of the present invention An explanatory diagram of the operation of the device, (a) and (b) are diagrams showing each step.

[FIG. 5] It is an explanatory view showing important parts of the dough sheet spreading device according to the first embodiment of the present invention, (a) is a plan view, and (b) is a front view.

[Fig. 6] A plan view schematically showing the effect of the dough sheet stretching device of the first embodiment of the present invention on the dough sheet, (a) the figure shows the dough sheet before stretching, and (b) the figure shows the expanded sheet Dough pieces.

[FIG. 7] A plan view showing the structure of a dough sheet spreading device according to a second embodiment of the present invention.

[FIG. 8] A front view showing the structure of a dough sheet spreading device according to a second embodiment of the present invention.

[FIG. 9] An explanatory view showing the structure of a cutting device provided on the upstream side of the dough sheet spreading device according to the second embodiment of the present invention, (a) is a plan view, and (b) is a front view.

[Fig. 10] It is an explanatory view showing a structure of a stretch roll according to a third embodiment of the present invention, (a) a plan view and (b) a front view.

[FIG. 11] A plan view showing the structure of a rolled dough shaping device according to a fourth embodiment of the present invention.

[FIG. 12] A front view showing the structure of a rolled dough shaping device according to a fourth embodiment of the present invention.

[Fig. 13] An explanatory view showing the structure of a dough sheet stretching device and a roll-up portion of a roll-up device provided in a roll-up dough shaping device according to a fourth embodiment of the present invention, (a) is a plan view, (b ) Picture is a front view.

[Fig. 14] A rolled dough showing a fourth embodiment of the present invention (A) is a top view, (b) is a front view, and (c) is a side view.

[FIG. 15] An explanatory view showing a structure of a shaping unit of a rolling device provided in a rolling dough shaping device according to a fourth embodiment of the present invention. (A) is a plan view, and (b) is a front view. (c) Picture is a side view.

[FIG. 16] A plan view showing the formation of a dough piece by a rolling portion of a rolling device provided in a rolling dough shaping device according to a fourth embodiment of the present invention.

[Fig. 17] An explanatory view showing an application example of a rolling portion of a rolling device provided in a rolling dough shaping device according to a fourth embodiment of the present invention, (a) is a plan view, and (b) is a front view. Illustration.

18 is a plan view showing a structure of a rolled dough shaping device according to a fifth embodiment of the present invention.

[FIG. 19] A front view showing the structure of a rolled dough shaping device according to a fifth embodiment of the present invention.

[Fig. 20] The state of each device in the third example of the rolling method of the dough sheet 3 on which the inner material 6 is placed in the fifth embodiment of the present invention is continuously illustrated.

[Fig. 21] Shows a recessed portion (concave groove) formed on the upper surface near the bottom side of the dough piece and a state in which an inner material is arranged in the recessed portion.

[Fig. 22] An explanatory view showing a structure of a dough sheet spreading device according to a sixth embodiment of the present invention, (a) a plan view and (b) a front view. Face view.

The dough sheet spreading device 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The dough sheet spreading device 1 includes a first conveying device 5 for conveying the dough sheet 3, a second conveying device 7 connected to the conveying device 5, and a spreading roller 9. Furthermore, a control device 10 for controlling each device is provided.

The dough sheet 3 is described as a croissant dough by cutting out a substantially triangular shape from a wide strip-shaped dough sheet 2. Here, for convenience of explanation, the top of the substantially triangular shape is referred to as 3A, the left and right oblique sides are referred to as 3B and 3C, and the bottom side is referred to as 3D. In addition, the so-called substantially triangular dough is a concept that includes a substantially trapezoidal dough piece whose length at the top 3A is shorter than the length at the bottom 3D. A cutting device 25 is provided on the upstream side of the dough sheet spreading device 1 above the belt conveyor 26. The cutting device 25 shown in FIG. 3 is provided with a rotary blade 29 and a circular knife-type circular cutter 31. The rotary blade 29 is provided on the outer periphery of the cylindrical portion 28 and is used to cut the beveled edges 3B and 3C. The circular cutter 31 is arranged near the downstream side and is used to cut out the top 3A and the bottom 3D.

Both ends of the rotary shaft 30 of the rotary blade 29 are rotatably supported on a conveyor frame 26F of the belt conveyor 26. In addition, a circular roller 33 is fixed to the rotating shaft 30 on both sides of the rotating blade 29. The roller 33 is in contact with the conveying surface of the conveyor belt 26B, and is rotated by friction, so that the peripheral speed of the rotary blade 29 is reduced. The conveying speed of the feeding belt 26B is driven at the same speed. The circular cutter 31 is pivotally supported by a rotation shaft 32, and both ends of the rotation shaft 32 are rotatably supported on the conveyor frame 26F. The circular cutter 31 is a person who contacts the round rollers 35 fixed to both ends of the rotation shaft 32 with the conveying surface of the conveyor belt 26B, and rotates passively by friction.

In this embodiment, the cutting device 25 is provided with four circular cutters 31 at regular intervals, and cuts the dough pieces 3 in three rows in the width direction from the dough pieces 2. Both end portions 2A of the dough sheet 2 cut out by the circular cutters 31 at both ends are guided by the guide member 4 and discharged toward both sides of the belt conveyor 26.

Although not shown in FIG. 3, the cutting device 25 may be provided with an indentation roller in addition to the rotary blade 29 and the circular cutter 31. This creasing roller is used to sandwich the dough piece 3 between the conveying surface of the conveyor belt 26B and the creasing roller, and a depression parallel to the top 3A and the bottom edge 3D is formed near the top 3A and the bottom edge 3D of the dough piece 3 Shaped grooves (also known as recesses). As described later, before rolling up the dough piece 3, the inner material is placed in a recessed portion provided near the bottom edge 3D.

The dough piece 3 is cut into a substantially triangular shape by the cutting device 25 described above. The dough piece 3 is pushed back upstream when the top 3A and the bottom edge 3D are cut while coming into contact with the left and right sides of the circular cutter 31, so the whole dough piece 3 is bent and formed toward the upstream side. Alternatively, the dough sheet 3 is formed by bending the dough sheet 2 due to the stress generated in the dough when the dough sheet 2 is formed. Thereafter, the dough pieces 3 are arranged downstream by the well-known turning device 3D The side system rotates on the belt conveyor 26 and is conveyed to the first conveying device 5. In the following description, the dough pieces 3 are conveyed in one line along the conveyance direction R.

The first conveying device 5 is a belt conveyor. The front end portion 5F of the first conveying device 5 is configured to wind the conveyor belt 17 on a conveyor front end plate 13 rotatably supported on a support shaft 11 and a front end roller 15 rotatably supported on the front end portion by the shaft. The conveyor front plate 13 is connected to a linear motion actuator 19 installed in the first conveying device 5 through a bracket 21. Therefore, the front end portion 5F is provided so that the linear motion actuator 19 installed inside the first conveying device 5 can be moved up and down with the support shaft 11 as the center. Furthermore, the actuator 19 is capable of controlling the vertical movement position.

Above the first conveying device 5, a photoelectric sensor 23 is installed for detecting the dough pieces 3 being conveyed. If the sensor 23 detects the dough sheet 3, the sensor 23 sends a detection signal to the control device 10. Based on the detection signal, the arithmetic processing device 37 of the control device 10 calculates the handling of the dough sheet 3 Position, and based on the position information, the actuator 19 and an actuator 49 described later are controlled.

The second conveying device 7 is a belt conveyor arranged near the downstream side of the first conveying device 5. The rear end portion 7B of the second conveying device 7 is configured such that the conveyor belt 47 is wound around the rear end plate 43 of the conveyor that is rotatably supported on the support shaft 41 and the rear end of the rear end portion that is rotatably supported by the rear end portion.端 滚 45。 End roller 45. The rear end plate 43 of the conveyor is connected to a linear motion actuator 49 installed in the second conveying device 7 through the bracket 51. Knot. Therefore, the rear end portion 7B is provided so that the support shaft 41 can be pivoted up and down by the linear motion-type actuator 49 moving back and forth. Furthermore, the actuator 49 can control the vertical movement position.

The spreading roller 9 is provided above the rear end portion 7B of the second conveying device 7 at a desired interval from the conveying surface (the upper surface of the conveyor belt 47) of the second conveying device 7. The extension roller 9 is configured to arrange the rotation shaft 9A in the width direction of the second conveying device 7 (horizontal direction orthogonal to the conveying direction R of the second conveying device 7), and to pass one end of the rotation shaft 9A through the normal A power transmission mechanism 57 such as a time belt is interlocked with the control motor 59. The other end of the rotation shaft 9A is rotatably supported on the upper surface of the conveyor frame 8. Further, the extension roller 9 is formed with a plurality of protrusions 9B along the circumferential direction at equal intervals in the axial direction with the same shape. Here, the ridge portion 9B is trapezoidal in a horizontal cross section. In addition, the outer shape portion of the extension roller 9 is set to the outer periphery 9S, and the valley portion between the ridge portions 9B is set to the bottom portion 9BS.

The peripheral speed of the extension roller 9 is controlled to be substantially the same as or slightly faster than the conveyance speed of the second conveyance device 7. In addition, the peripheral speed of the extension roller 9 and the conveyance speed of the second conveyance device 7 are controlled to be driven faster than the conveyance speed of the first conveyance device 5.

A roll-up device 61 is provided on the downstream side of the dough sheet spreading device 1 for rolling up the dough sheet 103 stretched by the dough sheet spreading device 1. The rolling device 61 is provided with a curtain-shaped curling net 63. The curling net 63 is detachably hung on a cross shaft 65, and the cross shaft 65 is supported by a bracket erected on the conveyor frame 8 of the second conveying device 7 67.

Next, the operation of the dough sheet spreading device 1 according to the first embodiment will be described. The dough pieces 3 are carried by the first carrying device 5 and detected by the sensor 23. The sensor 23 sends the detection signal to the control device 10. The control device 10 drives the actuators 19 and 49 based on the detection signal, and lowers the front end portion 5F and the rear end portion 7B (see FIG. 4 (a)). The dough piece 3 is conveyed without touching the extension roller 9. After the bottom edge 3D of the dough piece 3 passes below the center of the extension roller 9 (synonymous with the rotation center of the rotation roller 9A), the front end portion 5F and the rear end portion 7B Ascending, the dough piece 3 is sandwiched between the extension roller 9 and the conveying surface of the conveyor belt 47, and is extended over the entire length (see FIG. 4 (b)).

Next, the operation of the extension roller 9 will be described. In the conventional case, when the dough piece 3 formed into a curved shape is extended by a cylindrical extension roller having no ridge portion, it cannot be extended because the curved shape is extended as a whole. Correct the curvature of the dough piece 3. However, by using the extension roller 9 provided with the protrusion part 9B, the curvature of the dough piece 3 can be corrected and it can form a substantially isosceles triangle shape (refer FIG. 5). Specifically, it demonstrates below.

The extension roller 9 is formed with a plurality of protrusions 9B along the circumferential direction at equal intervals in the axial direction with the same shape. When the dough piece 3 is sandwiched between the spreading roller 9 and the conveying surface of the conveyor belt 17, the dough piece 3 is pressed against the protruding portion 9B. Next, the dough piece 3 is stretched on the ridge portion 9B of the stretch roll 9 and is also stretched on the bottom 9BS. As shown in Figure 5 (b) As shown in the figure, if the initial thickness of the dough before the extension is T1, the interval between the bottom 9BS of the extension roller 9 and the conveyor belt 47 is T2, and the interval between the outer periphery 9S of the extension roller 9 and the conveyor belt 47 is If T3 is set, T1> T2> T3, and the dough piece 3 will be expanded from the initial thickness T1 to be thinner. Although a valley corresponding to the interval T2 to the interval T3 is formed on the dough piece 3, the dough piece 103 is formed to be uniform as a whole, that is, the height of the mountains is substantially uniform.

The dough of the dough sheet 3 is restrained from moving in the width direction by the protruding portion 9B, and is retained on the upstream side of the extension roller 9 in a raised manner. The retained dough 3H is pushed back toward the top 3A side inside the dough sheet 3 as the dough sheet 3 is conveyed. In addition, the dough pieces 3 are deformed in accordance with the extended length of each portion, and the extended dough pieces 103 are formed into a shape close to an isosceles triangle.

A mechanism for deforming the dough piece 3 into a substantially isosceles triangle shape will be described briefly using FIG. 6. Here, an imaginary line passing through the center of the bottom edge 3D of the dough sheet 3 along the conveying direction R is referred to as a center line CL. As shown in FIG. 6 (a), the dough piece 3 is offset from the center line CL of the dough piece 3, and the top portion 3A is bent to the right of the conveyance. The length of the dough at equal intervals in the width direction with respect to this center line CL is illustrated. Set the length of the dough corresponding to the dough piece 3 on the center line to C1, set the length of the dough to L1 from the center line CL to the left, and set the length of the dough to the right from the center line CL to the right. R1, R2, R3. The volume of the dough on the left side of the center line CL is set to VL, and the volume of the dough on the right side is set to VR.

When the dough sheet 3 is stretched from the bottom 3D side by a stretching roll 9 provided with a protruding portion 9B, the dough sheet 3 forms a retained dough 3H connected to the width direction of the dough sheet 3 on the upstream side of the stretching roll 9. And was pushed back towards the top 3A side. At this time, since the volume VR of the dough piece 3 on the right side of the center line CL is larger than the volume VL on the left side, the amount of the retained dough 3H on the right side portion of the center line CL will be greater than the left side portion, and the right side portion will be larger than This left part pushes back more dough.

Use the above dough length to illustrate this pushback. If the left and right dough lengths L1 and R1, L2 and R2, L3 and R3 of the dough sheet 3 before the extension are compared, the dough lengths respectively located on the right side of the center line CL are displayed longer (refer to FIG. 6 (a)). ). As described above, since the extension roller 9 is provided with the ridge portion 9B, the dough of the dough sheet 3 during the extension cannot be expanded in the width direction. Therefore, the length of the dough in each portion is extended in response to the amount of the retained dough 3H retained in each portion.

In particular, in the case of a viscoelastic substance such as bread dough, the retained doughs 3H in each part are pressed against each other and moved toward the top 3A side. In addition, since the dough moves from a place where the amount of the retained dough 3H is large to a small place, the length of the dough in each part is not extended in proportion to the conveyance direction. In other words, the dough lengths C1, L1 to L3, and R1 to R3 of the dough piece 3 before extension are extended by extension, and, as shown in FIG. 6 (b), the top 3A is extended to The dough pieces 3 in a bent state deformed near the center line CL are dough pieces extending in a shape close to an isosceles triangle to a uniform thickness as a whole. 103.

As can be understood from the above description, the spreading roller 9 has the effect of adjusting the dough amount around the center line CL of the dough sheet 3 to form an uneven dough sheet 3 and adjusting it so that the dough amount is approximately equal to the right and left. . In addition, by adjusting the distance between the spreading roller 9 and the second conveying device 7, the amount of the retained dough 3H is changed. As a result, the entire length (length along the conveying direction) of the stretched dough piece 103 can be adjusted. Next, the dough piece 103 is rolled up by the rolling device 61, and the rolled dough 203 is formed. By positioning the top portion 3A of the dough piece 103 on the center line CL, the top portion 3A can be rolled toward the center in the length direction of the rolled dough 203. That is, the dough sheet spreading device 1 and the rolling device 61 are provided as a rolled dough shaping device as a whole. In the above description, the extension roller 9 is described as being disposed above the end portion 7B of the second conveying device 7. However, the present invention is not limited to this, and the extension roller 9 may be disposed on the first conveying device 5. Above.

Next, the dough sheet spreading apparatus 101 according to the second embodiment of the present invention will be described with reference to FIGS. 7 to 9. Structures having the same functions as those of the dough sheet spreading device 1 are designated by the same reference numerals, and detailed descriptions thereof are omitted. The dough sheet extension device 101 is connected to the dough sheet extension device 1 and has a structure in which an upstream side extension roller 73 is added.

The dough sheet extension device 101 includes an upstream side dough sheet extension device 71 and a downstream side dough sheet extension device 91. The upstream side patch extending device 71 includes a first conveying device 5 and an upstream-side extending roller 73 above the front end portion 5F of the first conveying device 5. Upstream extension The rollers 73 are provided at a desired interval from the conveyance surface (the upper surface of the conveyor belt 17) of the first conveyance device 5. The upstream-side extension roller 73 is arranged in the width direction of the first conveying device 5, and one end of the rotation shaft 74 is connected to the control motor 77 through a power transmission mechanism 75 such as a timing belt. . The other end of the rotation shaft 74 is rotatably supported on the upper surface of the frame 6.

The upstream-side extension roller 73 is formed with a plurality of protrusions 73B along the circumferential direction at equal intervals in the axial direction with the same shape. The shape of this protruding portion 73B can be formed arbitrarily. The peripheral speed of the upstream-side spreading roller 73 is controlled to be substantially the same as or slightly faster than the conveyance speed of the first conveyance device 5.

The downstream side pellet extension device 91 includes a second conveyance device 7 and a downstream-side extension roller 93 above the end portion 7B after the second conveyance device 7. The downstream-side extension roller 93 is the same as the extension roller 9 described above, and detailed description is omitted.

Next, the operation of the dough sheet spreading device 101 according to the second embodiment will be described. The dough pieces 3 are conveyed by the first conveying device 5 of the upstream side dough piece spreading device 71 and are detected by the sensor 23. The sensor 23 sends the detection signal to the control device 10. The control device 10 drives the actuators 19 and 49 based on the detection signal, and lowers the front end portion 5F and the rear end portion 7B (see FIG. 9 (a)). The dough piece 3 is conveyed without contacting the upstream extension roller 73 and the downstream extension roller 93. After the bottom edge 3D of the dough piece 3 passes below the center of the downstream extension roller 93, the front end portion 5F and the rear end portion 7B meeting Raise the dough piece 3 between the upstream-side extension roller 73 and the conveying surface of the conveyor belt 17 and between the downstream-side extension roller 93 and the conveyance surface of the conveyor belt 47 to extend over the entire length (see Section 9). (B)).

Next, functions of the upstream-side extension roller 73 and the downstream-side extension roller 93 will be described. In the upstream side dough sheet extension device 71, the upstream side extension roller 73 having the ridge portion 73B has the following functions, and is the same as the dough roller 3 in the dough sheet extension device 1 described above, and the dough sheet 3 is bent and formed. Approximately the upper half of the shape is corrected to be approximately isosceles triangle shape. In addition, since the conveying speed of the second conveying device 7 of the downstream side pellet extending device 91 can be controlled and set to be higher than the conveying speed of the first conveying device 5, the distance between the upstream-side extension roller 73 and the downstream-side extension roller 93 The dough is stretched along the conveying direction R. Furthermore, after the dough sheet 3 passes below the upstream-side spreading roller 73, the downstream-side spreading roller 93 is caused to correct the curvature of the dough sheet 3.

The dough sheet stretching device 101 is connected to the upstream side dough sheet stretching device 71 and the downstream side dough sheet stretching device 91 in the conveying direction and is connected to each other. The peripheral speed of the downstream side stretching roller 93 is controlled so as to be extended more than the upstream side. The peripheral speed of the roller 73 is faster, and the dough piece 3 can be stretched and stretched in the conveying direction R, and the bending of the dough piece 3 can be corrected by two degrees. Therefore, the bent dough piece 3 can be efficiently formed to be close to Roughly isosceles triangle shape. Next, the rolled dough piece 105 is rolled up by the rolling device 61 to form the rolled dough 205. This rolled-up dough 205 is capable of rolling up the top portion 3A of the dough piece 3 toward the center in the longitudinal direction, and forming the rolled shape into a symmetrical spindle shape. That is, by The dough sheet spreading device 101 and the roll-up device 61 are integrally configured as a roll-up dough shaping device.

Next, the extension roller 111 according to the third embodiment of the present invention will be described using FIG. 10. Structures having the same functions as those of the dough sheet spreading device 1 are designated by the same reference numerals, and detailed descriptions thereof are omitted. The structure of the extension roller 111 is different from that of the extension roller 9.

The extension roller 111 is movably provided on a mounting table 121 on which the dough pieces 3 are placed. In the dough sheet spreading device 1 described above, the dough sheet 3 is conveyed by the first conveying device 5 and the second conveying device 7, and is stretched by the spreading roller 9 fixed in the conveying direction R. However, as long as the dough pieces 3 are stretched, the dough pieces 3 and the spreading rollers may be moved relatively. In addition, the placing table 121 may be a belt conveyor-like conveying device that intermittently conveys, or both the extension roller 111 and the placing table 121 can be moved, and the extension roller 111 and the placing table 121 are arranged so that Can be moved relatively.

The spreading roller 111 is provided to rotate by a driving mechanism (not shown) so as to stretch the dough sheet 3, and is movable from the bottom 3D side to the top 3A side of the dough sheet 3. In addition, the extension roller 111 may have a structure in which the main body of the extension roller 111 can rotate with respect to the rotation axis 111A, or both ends of the main body of the extension roller 111 are provided with a circular shape having a diameter larger than the outer periphery 111S of the extension roller 111 The flange 111F is rotated by friction with the mounting table 121.

The extension roller 111 is provided in the width direction (the axial direction of the extension roller 111) with a plurality of approximately semicircular protrusions 111B, so that Adjacent protrusions 111B are connected in a concave semicircle. That is, the surface shape of the extension roller 111 is formed into a wave shape. When the spreading roller 111 is moved while rotating from the bottom 3D side of the dough sheet 3 to the top 3A side, the dough sheet 3 will spread on the protruding portion 111B of the spreading roller 111 and also spread on the bottom 111BS. On the dough piece 3, a retaining dough 3H connected to the width direction of the dough piece 3 is formed on the upstream side of the moving direction of the spreading roll 111, and the retaining dough 3H is pushed back toward the top 3A side. Therefore, the dough piece 3 which is bent toward one side with respect to the center line CL is corrected so as to be close to a substantially isosceles triangle.

Next, a rolled dough shaping device 401 including a dough sheet spreading device 403 according to a fourth embodiment of the present invention will be described with reference to FIGS. 11 to 16. The rolled-up dough shaping device 401 includes a dough sheet stretching device 403 and a rolled-up device 423 downstream thereof. The dough sheet spreading device 403 includes a belt conveyor for conveying the dough sheet 3, that is, a first conveying device 405, and a spreading roller portion 409 above it. The rolling device 423 is provided with a belt conveyor, that is, a second conveying device 407, a rolling portion 425, a winding portion 427, and a shaping portion 429. The second conveying device 407 is connected to the first conveying device. On the downstream side of 405, the rolled-up portion 425 is located on the rear end side of the second conveying device 407, that is, on the upstream side above it. Furthermore, a control device 10 (not shown) for controlling each device is provided. The conveying speed of the second conveying device 407 can be controlled and set to be faster than the conveying speed of the first conveying device 405, for example, approximately 1.1 times.

On the first conveying device 405 and the second conveying device 407 A bracket 413 is detachably mounted on both sides. In addition, an extension roller portion 409 is provided above the front end portion of the first conveying device 405. The spreading roller unit 409 includes a spreading roller 410 for spreading the dough sheet 3 and a lifting device 411 for lifting and lowering the spreading roller 410. The lifting device 411 is mounted on the first span shaft 415 supported between the two brackets 413. The lifting device 411 includes a linear motion actuator 417 such as a fluid pressure cylinder, and a bracket 419 for rotatably supporting the extension roller 410 at the front end of a rod 417R for back and forth movement. In addition, a sensor 23 is installed on the upstream side of the lifting device 411 to detect the dough pieces 3 being conveyed. The control device 10 calculates the conveyance position of the dough piece 3 based on the detection signal of the sensor 23, and controls the driving of the actuator 417 based on the position information.

The extension roller 410 is arranged such that the rotation axis 410A is parallel to the conveyance surface of the first conveyance device 405 and is arranged along the width direction of the first conveyance device 405. The extension roller 410 has a center portion in the longitudinal direction which is thinner than both end portions, and is formed in a drum shape. This extension roller 410 is provided with protruding portions 410B at both ends, passes through the inclined surface 410C, and has a bottom 410BS at the bottom of the valley between them. The spreading roller 410 moves up and down relative to the conveying surface (upper surface) of the first conveying device 405 by moving the actuator 417 back and forth to approach and move away from the operator. Next, when the extension roller 410 is lowered, it is positioned above the front end roller 421 of the first conveying device 405. The lowering stop position of the extension roller 410 is provided so that the entire extension roller portion 409 can be adjusted up and down, or it can be adjusted by controlling the stroke of the lever 417R of the actuator 417.

The rolled-up portion 425 of the rolled-up device 423 includes two rotating wheels 431, a rolled-up sheet 433 made of a deformable flexible member, and a pressing plate 434 for pressing the upstream side of the rolled-up sheet 433. The rotating wheel 431 has a gap to the extent that the dough pieces 3 can be pressed against the carrying surface of the second carrying device 407, and can be moved up and down to adjust the gap. The rotating wheel 431 is mounted on a rotating shaft 435 and rotates at a speed substantially the same as or slightly faster than the conveying speed of the second conveying device 407. The rotating shaft 435 is driven by a pulley through a pair of driving wheels 437 that rotates And the belt-based rotation transmission mechanism 439 rotates. The driving wheel 437 is in contact with the surface of the conveyor belt 407B, and is rotated by the friction.

The rolled-up sheet 433 has a substantially long shape, and a fine uneven surface is formed on the lower surface that is in contact with the dough sheet 3. The upstream portion of the rolled-up sheet 433 is formed with a substantially V-shaped notch 433A to avoid interference with the rotating wheel 431. The rolled sheet 433 has a pair of wrist portions 433B formed at both ends of the notched portion 433A, and an elongated hole 433C along the conveying direction R is formed in the center of the downstream portion of the notched portion 433A. The front part of the wrist 433B is attached roughly 字 shaped hanging member 440. In addition, the second span shaft 441 is supported between the brackets 413, and a rectangular parallelepiped anchored member 442 is fixed to the shaft. In addition, the rolled-up sheet 433 detachably hangs the suspension member 440 on the suspended member 442, so that a portion from the lower end of the wrist portion 443B to the downstream side of the rolled-up sheet 433 is placed on the second The appearance of the carrying surface of the carrying device 407.

The wrist portion 433B of the rolled-up sheet 433 is pressed from above by the pressing plate 434 mounted on the second cross shaft 441. Pressure plate 434 is used to prevent the rolled-up sheet 433 from floating when the both sides of the bottom edge 3D of the dough sheet 3 are in contact with the wrist portion 433B of the rolled-up sheet 425, so that the rolling-up of the dough sheet 3 becomes a sure person. The pressing plate 434 is provided so as to be able to adjust the vertical position according to the thickness of the dough piece 3 being conveyed. In this embodiment, the second cross shaft 441 is moved up and down to move the rotating wheel 431, the upstream portion of the rolled sheet 433, and the pressing plate 434 together.

The take-up portion 427 is composed of three flexible members that can be deformed along the conveying direction R, and a long thin sheet member 443 with fine unevenness formed on the lower side thereof is juxtaposed in the width direction. A rolled sheet 446 formed by laminating one of the elongated mesh members 445 made of metal on top is formed. The sheet member 443 and the mesh member 445 of each row are connected at a plurality of locations by a ring-shaped coupling member 447 to connect adjacent rows. The upstream end of each sheet member 443 and the mesh member 445, that is, the upstream end of the rolled sheet 446 is provided with a suspension member 448, and is detachably hung on the third supported by the bracket 413 The suspended member 450 of the cross shaft 449. In addition, the sheet member 443 and the mesh member 445 are not limited to three pieces, and may be a plurality of pieces of two or more pieces, and the width dimension of each member may be formed differently. It is preferable that the sheet 446 be wound up and formed symmetrically in the width direction.

The downstream portion of the sheet member 443 and the mesh member 445 is formed as follows: The upper and lower systems are not combined and formed into a two-stranded shape, and the downstream portion of the sheet member 443 is placed on the carrying surface of the second carrying device 407. . In addition, the downstream end of each mesh member 445 is provided with a hanging The stopper member 448 is detachably hung on the suspended member 450 on the fourth span shaft 453 supported by the bracket 451. The middle part of the rolled sheet 443 is placed on the downstream side of the rolled sheet 433 and the conveying surface of the second conveying device 407, and is arranged to be able to rotate along the side and roll the dough under it. The shape of 205 is distorted. The bracket 451 is attached to a side surface of the second conveyance device 407.

A guide plate 455 is mounted on the third span shaft 449, and the guide plate 455 is used to guide both sides from the upstream end portion of the rolled sheet 446 to the middle portion thereof. In this embodiment, the guide plate 455 also sandwiches the downstream portion of the rolled-up sheet 433 from both sides to prevent the position of the rolled-up sheet 446 and the rolled-up sheet 433 from shifting in the width direction.

The shaping section 429 is formed of a deformable flexible member, and includes a rectangular shaping sheet 457 having fine irregularities formed on the lower surface. The upstream end of the shaping sheet 457 is attached to the hanging member 448, and the hanging member 448 is attached to the downstream end of the mesh member 445. In addition, a suspension member 448 is attached to the downstream end of the shaping sheet 457, and the suspension member 450 is detachably hung on the fifth span shaft 459 supported by the bracket 451. The middle portion of the shaping sheet 457 is in a state of being placed on the conveying surface of the second conveying device 407.

A long hole 461 is formed in the middle portion of the shaping sheet 457 along the length direction (left-right direction and conveyance direction R in FIG. 15) at the center of the width direction in a plan view. A rectangular pressing plate 463 is attached to both sides of the shaping sheet member 457 on the downstream side of the long hole 461. Two sticks are erected on the top of each pressing plate 463 状 件 465。 like member 465. The plate-shaped scale 467 can be detachably stacked on the pressing plate 463 through the rod-shaped member 465.

Guide plates 469 are provided on the fourth span shaft 453 to guide the two sides of the middle portion of the shaping sheet 457. The guide plate 469 prevents positional deviation of the shaping sheet 457 in the width direction.

Next, the operation of the rolled dough shaping device 401 of the fourth embodiment will be described. The dough pieces 3 are carried by the first carrying device 405 and detected by the sensor 23. The sensor 23 sends the detection signal to the control device 10. The control device 10 drives the actuator 407 of the extension roller unit 409 based on the detection signal, and lowers the extension roller 410 (see FIG. 12). In this embodiment, the lowering period of the spreading roller 410 is described as the bottom edge 3D of the dough sheet 3 just after being sandwiched between the rotating wheel 431 and the conveying surface of the second conveying device 407.

Next, functions of the extension roller portion 410 and the winding device 423 will be described. The spreading roller 410 nips the portion on the top 3A side of the dough piece 3 between the spreading roller 410 and the conveying surface of the first conveying device 405, so that the dough in this portion is stretched toward the top 3A (see FIG. 16). The dough in the top 3A side portion of the dough sheet 3 is restrained from moving in the width direction by the protruding portions 410B at both ends of the extension roller 410, and stays on the upstream side of the extension roller 410 like a bulge. This retained dough is in a state of being pushed back toward the top 3A side inside the dough sheet 3 as the dough sheet 3 is conveyed. Next, the dough piece 3 is pushed back by the inclined surface 410C of the extension roller 410, so that the top portion 3A of the dough piece 3 The shape near the center line CL is deformed, and the portion on the top 3A side of the dough piece 3 in the bent state is formed into a shape close to a substantially isosceles triangle. By positioning the top portion 3A of the dough piece 3 on the center line CL, the top portion 3A can be rolled up at the center in the longitudinal direction of the rolled-up dough 207 when rolled up in the subsequent step.

The dough piece 3 is stretched by the spreading roller 410 while being stretched in the conveying direction R between the spreading roller 410 and the rotating wheel 431 by using the speed difference between the first conveying device 405 and the second conveying device 407. The dough piece 3 is in contact with the rolled sheet 433 of the rolling part 425 in a state of being pressed on the second conveying device by the rotating wheel 431, so it does not slide on the second conveying device. Both sides of the bottom edge 3D are rolled up toward the upstream side. Since the dough 207 is rolled up, it is rolled up in a state where tensile stress is generated inside the dough, so the roll is shaped into a strong state. The length of the stretched dough piece can be adjusted according to the pressing degree of the extension roller 410, that is, the width of the interval between the extension roller 410 and the first conveying device 405, and the rolled dough can be adjusted according to the length 207 rolls.

The rolled dough 207 after being rolled is conveyed by the second conveying device 407 while rotating the lower side of the rolled sheet 433. The downstream side portion of the rolled-up sheet 433 is covered with the rolled-up sheet 446 and is deformed into a mountain shape in the width direction and the conveyance direction so as to follow the shape of the rolled-up dough 207. The dough near the top 3A of the rolled-up dough 207 is guided to the long hole 433C of the rolled-up sheet 433 and is located at the center of the rolled-up dough 207. In addition, the rolled sheet 433 is provided with a long hole 433C, and both sides of the long hole 433C are easily deformed into oblique shapes along the shape of the rolled dough 207, and the rolled dough 207 can be formed into a symmetrical spindle shape.

The dough 207 is rolled up to further strengthen the roll by pressing the middle portion of the roll-up sheet 446. The mesh member 445 of the rolled sheet 446 is made of metal, and functions as a scale for rolling up the dough 207. Since the sheet 446 is rolled tightly, as described above, the three sheet members and the mesh member are juxtaposed in the width direction and overlapped with each other, and are joined by the bonding member 448, so that the surface shape of the dough 207 can be rolled up. The width direction and the conveying direction are softly deformed, and the rolled dough 207 can be tightly rolled into a symmetrical spindle shape. By changing the weight of this mesh-like member 445, the degree of deformation of the rolled-up sheet 446 into a mountain shape with respect to the rolled-up dough 207 can be adjusted, and the degree of rolled-up of the rolled-up dough 207 can be adjusted.

The rolled-up dough 207 after passing through the tightening portion 427 is transferred to the shaping portion 429. The dough 207 is rolled up and brought into contact with the middle portion of the shaping sheet 457 and rotated while being conveyed by the second conveying device 407. The shaping sheet 457 is provided with a long hole 461 to deform both sides along the surface shape of the rolled dough 207, and further, the dough near the top 3A of the rolled dough 207 can be guided to the roll A person who lifts the center of the dough 207 in the longitudinal direction and does not crush it excessively to perform shaping.

In the above description, the provision of the guide plate 455 and the guide plate 469 prevents the rolled-up sheet 433, the rolled-up sheet 446, and the shaping sheet. The sheet 457 is shifted in position in the width direction. Since the rolled dough 207 can be rotated without being shifted in the width direction, the rolled dough 207 can be formed into a symmetrical spindle shape. In addition, when the tightness of the rolled-up dough 207 is weak, a rolled-up device that does not constitute a part of the rolled-up portion 425, the rolled-up portion 427, or the forming portion 429 may be provided. For example, when a filling such as jam or cream is placed on the top of the dough piece 3 to form a rolled dough with an inner filling, the filling may leak out if the rolled dough is too tightly wrapped. To the surface, it is necessary to adjust the strength of the winding.

Next, an application example of the rolled-up portion will be described with reference to FIG. 17. The rolling device 423 described above will be described as being installed near the downstream of the spreading roller 409 and rolling up the dough sheet 3 while being stretched in the conveying direction R. The rolled-up portion 471 shown in FIG. 17 is exchangeable with the rolled-up portion 425 of the rolling device 423. In addition, the present invention is not limited to this, and the dough piece 3 or the dough piece stretched by another device may be rolled up only by the rolled-up portion 471. The rolled-up portion 471 is provided with: four pressure-reducing plates 473, three rotating wheels 431, and rolled-up sheets 475. The pressure-reducing plates 473 are rotatably supported by the second span shaft 441; The rolled sheet 475 is fixed to the rotating shaft 435. The rolled sheet 475 is attached to the pressure plate 473 and is formed of a deformable flexible member. The pressure conversion plates 473 are arranged side by side in the width direction, and a rotation wheel 431 is arranged between them.

The pressure plate 473 is provided with a curved arm member 477, and the arm member 477 is provided with a contact portion 478 and a pressure conversion portion 479, and the contact portion 478 is arranged obliquely from the second cross shaft 441 toward the conveying surface of the second conveying device 407; the pressure converting portion 479 is directed slightly upward with the downstream side relative to the conveying surface. Below the contact portion 478 and the pressure conversion portion 479, a grid-like uneven surface is formed to increase the contact resistance with the dough sheet 3. The pressure plate 473 is arranged so that the arm member 477 and the conveying surface of the second conveying device 407 are spaced slightly by being hung on a stopper shaft 485.

The rolled sheet 475 is attached to the front end portion (downstream end portion) of the pressure conversion portion 479 of the four pressure conversion plates 473. The rolled-up sheet 475 is provided with an isosceles triangular opening portion 481 on the near-downstream side of the front end portion of the pressure conversion portion 479, and wrist portions 482 are provided on both sides of the opening portion 481. A deformable rod-shaped scale member 483 is attached to both ends of the rolled-up sheet 475. Further, the rolled-up sheet 475 is located on the downstream side of the opening portion 481, and a cutting line 484 is provided in the center of the rolled-up sheet 475 and penetrates along the conveyance direction R.

Next, a rolling method of the dough sheet 3 by the rolling section 471 will be described. The dough piece 3 conveyed to the second conveying device 407 is pressed against the rotating wheel 431, and the bottom edge 3D of the dough piece 3 abuts on the lower end portion of the contact portion 478 of the pressure plate 473 waiting at the lowest lowering position. The dough piece 3 is pressed while the transfer platen 473 is pushed up, and the bottom edge 3D is pushed upward. The dough piece 3 is rolled under the pressure converting portion 479 and rolled up by the wrist portions 482 at both ends of the opening portion 481 of the sheet 475. The rolled-up dough 207 after being rolled up is slightly rolled tightly on the downstream side of the rolled-up sheet 475. At this time, roll up the sheet 475, Since the central part is provided with a cutting line 484, both sides can deform along the surface shape of the rolled dough 207. In addition, after rolling up, the rolled-up dough 207 after passing through the uneven surface of the lower surface of the rigid body pressure converting portion 479 is rolled up by lightly and softly rolling up the sheet 475, so that the surface can be completed. To keep.

As a conventional rolling device, there is a rolling device described in Patent Document 2. This rolling device is used to roll up the dough piece from both ends of the bottom of the dough piece, and roll up the two wrists (both sides of the spindle shape) of the rolled dough after rolling up to extend the length of the dough installation. Furthermore, Japanese Utility Model Publication No. 63-37824 discloses a crimped net in which a plurality of rod-shaped rods are mounted in parallel on two parallel cables. This curling net is for those who can shake the rolled dough to increase the contact area. However, in such conventional techniques, the rolling device cannot be contacted along the surface shapes of the wrists of the rolled dough, and the rolled dough cannot be formed into a symmetrical spindle shape. However, the rolled sheet 433, the rolled sheet 446, the shaping sheet 457, and the rolled sheet 475 of the rolled-up portion 471 constituting the rolled-up device 423 are formed so that each sheet faces the both ends of the rolled-up dough 207. The rolled dough 207 can be tilted downward, so that the wrists of the rolled dough 207 can be pressed symmetrically from above in the width direction, and the rolled dough 207 can be formed into a symmetrical spindle shape.

In the present embodiment, the dough sheet spreading device 403 and the roll-up device 423 are described as different conveying devices each having a first conveying device 405 and a second conveying device 407, but the present invention is not Limited to this form, the dough sheet extension device 403 and the roll-up device The device 423 may be provided with a common conveying device, that is, one conveying device.

Next, a rolled dough shaping device 501 according to a fifth embodiment of the present invention will be described with reference to FIGS. 18 and 19. The rolled-up dough shaping device 501 includes a dough sheet stretching device 403 and a rolled-up device 503 on its downstream side. The dough sheet spreading device 403 includes a first conveying device 405 and a spreading roller portion 409 above it. The roll-up device 503 includes a second conveying device 407 and a roll-up portion 505 provided on the rear end portion of the second conveying device 407 and above it. Furthermore, a control device 10 (not shown) for controlling each device is provided. In addition, in this embodiment, it is an upper surface on the 3D side of the bottom edge 3 of the dough piece 3 being conveyed, for example, a food material such as chocolate, that is, a stick-shaped and solid inner material 6 is rolled up The dough shaping device 501 will be described by a person who rolls the dough 209 with the inner material 6 inside and shapes the dough.

The extension roller 410 of the extension roller portion 409 can adjust the lower end position by setting the first actuator 417 for moving the extension roller 410 up and down. If described in detail, the actuator 417 is attached to the upper and lower grip mechanisms 514 of the brackets 413 provided on both sides through the base bracket 515. In addition, a sensor 23 for sensing the passage of the dough piece 3 is a span shaft 502 installed between brackets 413 fixed on both sides. The control device 10 calculates the conveyance position of the dough piece 3 based on the detection signal from the sensor 23, and controls the driving of the first actuator 417, the second brake 529, and the control motor 543 described later based on the position information.

The roll-up portion 505 of the roll-up device 503 includes three rotation wheels 431, a support mechanism 508, a pressure plate 509, and a roll-up sheet 511. The rotation wheels 431 are juxtaposed at a desired interval in the width direction. The support mechanism 508 is rotatably mounted on the shaft 507; the pressure plate 509 is detachably supported on the support mechanism 508; the rolled sheet 511 is installed on the pressure plate 509 and is made of a deformable soft member Make up.

The rotating wheel 431 is driven through a rotation transmission mechanism 541 such as a V-belt, a V-belt, and the like to control the rotation of the motor 543 so that the rotational speed can be adjusted. Moreover, the rotating wheel 431 is provided so that it can raise and lower by the raising and lowering device 527. The lifting device 527 is a linear motion type second actuator 529 mounted on the bracket 413 by an air cylinder or the like, and lifts the rotary shaft 435 through a power transmission mechanism 531 such as a link mechanism. The arm portion 532 of the link mechanism 531 is provided with a plurality of connection holes 532H. By changing the connection position of the actuator 529, the lifting distance of the rotary wheel 431 can be increased or decreased. In addition, an operating position (from a rising end position to a falling end position) for raising and lowering the rotating wheel 431 is set to be adjustable by connecting the rotating shaft 435 to the vertical grip mechanism 533.

The supporting mechanism 508 is provided with a mounting bracket 521 and a bracket 523. The mounting bracket 521 is rotatably mounted on the shaft 507 and is used to detachably support the pressure plate 509. The bracket 523 is The rotation position is fixed to the shaft 507. The bracket 523 is provided with a baffle plate 525 for elastically pressing the transfer plate 509 against the second conveying device 407 side.

The pressure conversion plate 509 has a curved shape and includes a wrist portion 516, an abutting portion 517, and a pressure conversion portion 518. The wrist portion 516 faces the conveying direction R from the support mechanism 508 side with respect to the conveying surface of the second conveying device 407. The downstream side is inclined; the abutting portion 517 is bent from the wrist portion 516 to be more inclined; the pressing portion 518 is directed to the downstream side slightly upward with respect to the conveying surface. Below the abutting portion 517 and the pressing portion 518, approximately the upper half of the rolled-up sheet 511 is attached. The lower surface of the rolled-up sheet 511 is formed into a grid-like uneven surface to increase the contact resistance with the dough sheet 3. In addition, a deformable weighing scale member 519 is attached to the lower half of the rolled sheet 511 at both ends of the rolled sheet 511. In addition, the transfer plate 509 and the rolled-up sheet 511 are provided in parallel in the width direction with long holes (not shown) through which the rotary wheel 431 can pass. The pressure plate 509 is provided so as to be movable relative to the rotating wheel 431 by adjusting the movement of the shaft 502 for supporting the support mechanism 508 in the conveying direction R.

Next, a representative example of the rolling method of the dough piece 3 on which the inner material 6 is placed by the rolled-up dough shaping device 501 will be described below. In the first example of the rolling method of the dough sheet 3 on which the inner material 6 is placed, the dough sheet 3 is conveyed by the first conveying device 405 so that the sensor 23 detects the dough sheet 3. The dough piece 3 is further transported. After the inner material 6 passes under the extension roller 410, the first actuator 417 of the lifting device 411 operates to lower the extension roller 410 and press the dough piece 3. The dough piece 3 is pushed upward while the bottom edge 3D is brought into contact with the contact portion 517 of the pressure plate 509 while being conveyed. Almost at the same time, the inner material 6 will be at the rising end position and the rotating wheel 431 rotating contact. The rotating wheel 431 guides the inner material 6 to the conveying direction R while pressing the dough piece 3 against the conveying surface of the second conveying device 407 through the inner material 6. Therefore, the abutting portion 517 winds the bottom edge 3D of the dough piece 3 around the inner material 6 held by the rotating wheel 431, and prevents the inner material 6 from rolling off the dough piece 3.

When the inner material 6 passes through the lower end portion of the rotating wheel 431, the second actuator 529 of the lifting device 527 will operate to lower the rotating wheel 431 to a position where it contacts the dough piece 3. The upstream side of the dough sheet 3 is stretched between the extension roller 410 and the rotating wheel 431, and the downstream side of the dough sheet 3 is rolled up by the pressure plate 509. The pressure plate 509 is rotated upwards according to the shape of the rolled dough piece 3 and is pressed by the baffle plate 525. Therefore, the rolled dough 209 after being rolled will be around the inner material 6 There is no gap or even the dough is rolled up. The rolled dough 209 is rolled under the rolled sheet 511 while being rotated.

As described above, since the operating position of the rotating wheel 431 can be adjusted, the rising end position and the falling end position can be appropriately set according to the size of the inner material 6 or the thickness of the dough piece 3. In addition, since the pressure conversion plate 509 is provided so as to be movable in the conveying direction R relative to the rotation wheel 431, it can be adjusted so that the pressure conversion plate 509 is made almost simultaneously when the rotation wheel 431 presses the inner material 6 against the dough piece 3. Push the dough piece 3 up. In this way, by making the rotating wheel 431 and the pressure plate 509 individually adjustable, the dough piece 3 on which the inner material 6 is placed can be stably rolled and shaped. In addition, in the rolling device 503, the dough piece 3 is not limited to a substantially triangular shape, and a rectangular dough piece may be wound around the inner material to roll the roll. Lift the dough for rolling. Furthermore, in the case where the dough sheet stretching device is set close, it is more effective if the stretching roll 410 is replaced with an elongated one such as the stretching roll 9 to press the entire width of the dough sheet.

Next, a second example of a rolling method of the dough sheet 3 on which the inner material 6 is placed will be described. In the second example, the speed of the second conveying device 407 can be set faster than the speed of the first conveying device 405. In the second example, the dough piece 3 is detected by the same sensor 23 as the first example. When the bottom edge 3D of the dough piece 3 is transferred from the first conveying device 405 to the second conveying device 407, the bottom edge 3D will be pushed up so that the inner material 6 contacts the rotating wheel 431.

Here, by setting the outer peripheral speed of the rotating wheel 431 to be slower than the conveying speed of the second conveying device, it can be used to make the dough piece 3 wind around the inner material 6 to make the dough piece 3 work. It is wound around the inner material 6. Next, the dough piece 3 is further conveyed in the conveying direction R. After the inner material 6 passes the lower end of the rotating wheel 431, the extension roller 410 is lowered to press the dough piece 3. In addition, the bottom edge 3D of the dough piece 3 will contact the abutting portion 517 of the pressure plate 509 and be further rolled up. In addition, after the inner material 6 passes the lower end portion of the rotating wheel 431, the rotating wheel 431 is lowered to a position where it contacts the dough piece 3. At this time, since the speed of the second conveying device 407 is controlled to be faster than the speed of the first conveying device 405, the dough piece 3 is stretched and stretched.

Next, a third example of the method of rolling up the dough sheet 3 on which the inner material 6 is placed will be described with reference to FIG. 20. FIG. 20 shows how to roll up the dough piece 3 on which the inner material 6 is placed The state of each device in the third example is continuously illustrated. In addition, in the third example, the rolled-up dough shaping device 501 of the fifth embodiment uses the rolled-up sheet 446 instead of the rolled-up sheet 511. In addition, in the third example, the following settings may be performed individually or in combination, and the settings are as follows: (a) The height of the conveying surface of the second conveying device 407 is set higher than that of the first conveying device 405 The height is higher; (b) the speed of the second conveying device 407 is set to be faster than the speed of the first conveying device 405; (c) the outer peripheral speed of the rotating wheel 431 is set to be faster than the conveying speed of the second conveying device 407 slow.

In the third example, the dough piece 3 is detected by the same sensor 23 as the first example. As shown in FIG. 20 (a), the dough piece 3 on which the inner material 6 is placed is slightly moved to the bottom 3D side of the dough piece 3 when it is transferred from the first conveying device 405 to the second conveying device 407. After hanging downward, the bottom edge 3D will abut the shoulder of the end roller behind the second carrying device 407. Next, as shown in FIG. 20 (b), the bottom edge 3D of the dough piece 3 is made 3D by using the difference in the height of the conveying surface and / or the difference in the conveying speed between the first conveying device 405 and the second conveying device 407. The side is bent upwards.

As shown in FIG. 20 (c), the dough piece 3 (the bottom edge 3D or the bottom of the dough piece 3) contacts the rotating wheel 431, and the dough piece 3 and the inner material 6 are sandwiched between the rotating wheel 431 and the second conveying device In the state between 407, the dough piece 3 is wound around the inner material 6. At this time, the speed difference between the second conveying device 407 and the rotating wheel 431 is used to promote the rolling of the dough piece 3. Next, as shown in FIG. 20 (d), the dough piece 3 wound on the inner material 6 will abut against the abutting portion 517 and the dough piece 3 of the pressure plate 509. While being carried, it is rolled up around the inner material 6 by the pressure plate 509.

In addition, as shown in FIG. 20 (e), the spreading roller 410 is lowered, and the dough sheet 3 is pressed. At this time, a difference in the conveying speed between the first conveying device 405 and the second conveying device 407 is used to apply a tensile force in the conveying direction to the dough sheet 3. In addition, the spreading roller 410 corrects the dough piece 3 so as to approximate a substantially isosceles triangle. Next, as shown in FIG. 20 (f), the rotary wheel 431 is lowered, and the dough piece 3 is pressed. The rotating wheel 431 is used to prevent the dough piece 3 from being inclined in a horizontal plane with respect to the conveying direction. The downstream side of the dough piece 3 is rolled up by a pressure plate 509. Furthermore, as shown in FIG. 20 (g), after the dough sheet 3 is rolled up by the take-up sheet 446, the spreading roller 410 and the rotating wheel 431 return to the initial position and wait for the next dough sheet 3 to be conveyed.

As can be understood from the above description, in the third example, the rolling step is started between the first carrying device 405 and the second carrying device 407. Next, a rotation wheel 431 is disposed downstream of the start position of this rolling step. Therefore, the device for rolling up the dough piece 3 and the rotating wheel 431 which is in contact with the dough piece 3 and pressed tightly against the second conveying device are arranged in parallel.

As a conventional example of a roll-up device for placing a solid object on a dough sheet and rolling it up, there is a device described in Japanese Denshi No. 3058292 applied by the applicant. This conventional device is arranged above the conveying surface of the conveyor, and a plurality of pressure plates are arranged side by side in the width direction. Each pressure plate is rotatably supported on the shaft. This conventional device is connected with the required space between the rolled-up part of the transfer platen and the carrying surface, and allows the rod-shaped solid object to be carried. A piece of bread dough passing therethrough, thereby shaping the rolled bread dough with a stick-shaped solid as a core material. In this device, before rolling up the bread dough pieces in such a manner as to prevent the stick-shaped solid material from rolling off the bread dough, the stick-shaped solid material is sufficiently pressed against the bread dough by means known in the art, so that The stick-shaped solid object is rolled on the transfer plate, thereby rolling up the dough piece. Therefore, there is a problem in that the stick-like solid material rolls on the dough sheet and the dough sheet cannot be rolled up.

In addition, as another conventional example, there is a device described in the specification of European Patent No. 1726029. This conventional device is provided with a pressing device facing the upper side of the conveying belt and a rolling-up conveyor downstream thereof, and has a pressing path and a rolling path. The pressing device and the roll-up conveyor are belt conveyors each having a plurality of endless belts separated in the width direction and driven by each driving motor. In this conventional device, since the pressing path and the rolling path are separately provided, there is a problem that the device becomes large. In addition, since the dough pieces are not pressed on the rolling path, the stick-shaped solids are rolled by the rolling conveyor to roll the dough pieces, so the rolling becomes unstable, and further, the When the croissant dough is rolled up, there is a problem that it cannot be formed into a symmetrical spindle shape.

In the rolling device 503 of this embodiment, when the dough piece 3 is rolled up by the rotating platen 509, the rotating wheel 431 directly presses the dough piece 3 through the inner material 6 and therefore the inner material can be placed thereon. The dough piece of 6 is rolled up stably, and further, the spindle-shaped rolled dough 209 can be symmetrically shaped. Therefore, it is not necessary to lean the dough sheet extension device 403 Recently, the dough piece 3 on which the inner material 6 is placed can also be rolled up into a rolled-up dough 209 by only the rolling-up device 503. In addition, since the dough shaping device 501 can roll up the dough sheet 3 while stretching between the pressing roller 410 and the rotating wheel 431, the number of rolls or the strength of the roll can be adjusted. degree.

In addition, in this embodiment, the dough sheet spreading device 403 and the rolling device 503 are described as different conveying devices each having a first conveying device 405 and a second conveying device 407, but the present invention is not Limited to this form, the dough sheet spreading device 403 and the rolling device 503 may be provided with a common conveying device, that is, one conveying device.

In addition, in the present embodiment, when the dough piece 3 on which the inner material 6 is placed is rolled up, the inner material 6 is placed near the bottom 3D side of the dough piece 3 by a human hand or a machine. Positioning of the inner material 6 relative to the dough piece 3 is facilitated, and the position of the inner material 6 is not shifted when the dough piece 3 is rolled up and formed, as shown in FIG. 21, on the bottom of the dough piece 3 The aforementioned recessed portion (concave groove) 3E is formed in advance on the upper surface near the side of the 3D side, and the inner material 6 is placed in this recessed portion 3E.

Next, a dough sheet spreading device 601 according to a sixth embodiment of the present invention will be described using FIG. 22. Structures having the same functions as those described above are denoted by the same reference numerals, and detailed descriptions are omitted. The dough sheet spreading device 601 includes a first conveying device 405, a second conveying device 407, a spreading roller portion 409 as an upstream-side spreading roller portion, and a downstream-side spreading roller portion 603. Furthermore, it is useful to control 制 控制 装置 10。 Each control device 10.

The spreading roller portion 409 is provided above the front end side of the first conveying device 405 in the same manner as the dough sheet spreading device 401. The spreading roller 410 is moved back and forth by the actuator 417 to approach and move the conveying surface (upper surface) of the first conveying device 405 away from the operator. The downstream-side extension roller portion 603 is provided with the extension roller 9. The spreading roller 9 is provided above the rear end side of the second conveying device 407. The spreading roller 9 is attached to a conveying surface (upper surface) of the second conveying device 407 at a required interval.

The dough pieces 3 are carried by the first carrying device 405 and detected by the sensor 23. Furthermore, the dough sheet 3 is conveyed, and is sandwiched between the conveying surface of the extending roll 9 and the second conveying device 407 under the extending roll 410 waiting above. Thereafter, based on the detection signal from the sensor 23, the control device 10 drives the actuator 417 to lower the extension roller 410 to a desired position. The spreading roller 410 presses the dough piece 3 on the conveying surface of the first conveying device 405 to spread the dough on the top 3A side of the dough piece 3.

The spreading roller 410 has a function of correcting a portion of the upper half of the dough piece 3 after bending to a shape close to an approximately isosceles triangle. In addition, since the conveying speed of the second conveying device 407 is set to be higher than that of the first conveying device 405, the dough between the extension roller 410 on the upstream side and the extension roller 9 on the downstream side is conveyed along The direction R is stretched. Further, after the dough sheet 3 passes under the stretching roll 410, the stretching roll 9 plays a role of correcting the curvature of the dough sheet 3. As a result, Since the extended dough piece 109 is formed into an approximately isosceles triangle shape, the dough piece 109 can be rolled up to form the rolled-up dough, and the top 3A of the dough piece 109 can be rolled up toward the center of the length direction. The rolled shape is formed into a symmetrical spindle shape.

In the dough sheet stretching device 101, when the dough sheet 3 is stretched by the downstream-side stretching roller 93, in order to prevent the bottom edge 3D of the dough sheet 3 from contacting the downstream-side stretching roller 93, the bottom edge 3D is stretched through the downstream side. After the center of the roller 93 is lowered, the downstream-side spreading roller 93 is relatively close to the second conveying device 7 to sandwich the dough sheet 3, and the dough sheet spreading device 601 is configured to be arranged in advance and close to each other as needed. The dough sheet 3 is conveyed between the spaced spreading rollers 9 and the second conveying device 407. For example, in the case of stretching a relatively hard dough or the like, even if the bottom edge 3D of the dough piece 3 is slightly inclined with respect to the width direction, and the extension roller 9 is brought into contact with it, the inclination will not be greatly changed. The dough piece 3 is shaped into a substantially isosceles triangle shape by the function of the protruding portion 9B of the extension roller 9.

Although the description of the extension device according to the embodiment of the present invention is as described above, it is not limited to this, and various changes can be made within the scope of the patent application. For example, although a description has been given of a method in which an upstream-side spreading roller is provided above the first conveying device and a downstream-side spreading roller is provided above the second conveying device, it is also possible to provide both of them above a single conveying device. Stretch roll. Even in this case, the dough piece 3 can be shaped into a substantially isosceles triangle shape.

In addition, it may be close to the downstream side of the dough sheet spreading device 1, 101, or 601, or may be provided with a rolling device 423 or The rolling device 503 can also make the whole a rolling dough shaping device.

Although the extension roller 410 is described as a drum shape, the extension roller 410 may be provided with three or more protrusions in the longitudinal direction like the extension roller 9. In addition, although the several protrusion part of a spreading roll is demonstrated so that it may be formed in the same shape at equal intervals in an axial direction, it is not limited to this as long as it is a shape which exhibits the said effect.

Claims (19)

A dough sheet stretching device is used for stretching a dough piece having a substantially triangular shape. The dough sheet stretching device is provided with a mounting table for mounting the dough sheet, and a rolling roller that rotates above the mounting table. The roller is provided with a plurality of protruding portions formed along the circumferential direction, and the dough piece is stretched by the relative movement of the mounting table and the stretching roller. The dough sheet spreading device according to item 1 of the scope of patent application, wherein the mounting table is a conveying device for conveying the dough sheet to the downstream side. The dough sheet spreading device according to item 2 of the scope of patent application, wherein the interval between the conveying device and the spreading roller is set to be adjustable. The dough sheet stretching device according to item 2 or 3 of the scope of patent application, wherein an actuator and a sensor are provided, and the actuator is used for relatively lifting the stretching roller to the conveying device; The sensor is used to detect the dough piece conveyed to the upstream side of the extension roller, and is provided with a control device that controls the actuator according to a detection signal of the sensor. The dough sheet stretching device according to item 4 of the scope of the patent application, further comprising a control device that calculates the conveyance position of the dough sheet according to the detection signal of the sensor, and controls the actuator to After the bottom edge of the dough piece on the downstream side passes below the center position of the stretching roll, the stretching roll is lowered to stretch the dough piece. The dough sheet spreading device according to item 2 or item 3 of the scope of patent application, wherein the conveying device is provided with a first conveying device and a second conveying device arranged downstream of the first conveying device, The extension roller includes an upstream-side extension roller disposed above the first conveyance device, and a downstream-side extension roller disposed above the second conveyance device. A rolled dough shaping device, characterized in that the dough sheet spreading device according to any one of items 2 to 5 of the scope of patent application is used, and the carrying device is provided with: a first carrying device, and The second conveying device disposed on the downstream side of the first conveying device, the rolled-up dough shaping device is provided with a roll-up device on the second conveying device. The rolling dough shaping device according to item 7 of the scope of patent application, wherein the rolling device includes a rotating wheel, a rolling sheet, and a pressing plate, and the rolling sheet is formed of a deformable soft member. The pressing plate is used for rolling up the dough piece; the pressing plate is used to press the upstream side of the rolled piece. The rolled-up dough shaping device according to item 7 of the scope of the patent application, wherein the rolled-up device includes a rotating wheel, a rolled sheet, and a pressure plate, and the rolled sheet is made of a deformable soft member. The structure is used to roll up the dough pieces; the transfer plate is used to roll up the dough pieces, and the rolled sheet is mounted on the transfer plate. The rolled dough shaping device according to item 9 of the scope of the patent application, further comprising a second actuator for raising and lowering the rotation wheel with respect to the second conveying device, and a control device, which will be described above. The dough pieces on the bottom side of the dough pieces are placed with the solid inner material on the first conveying device, and the conveyance position of the dough pieces is calculated based on the detection signal of the sensor, and the actuator is moved. After the inner material passes below the center position of the extension roller, the control is performed to lower the extension roller to extend the dough piece, and the second actuator is controlled to cause the rotation wheel to rise to communicate with the The inner material contacts, and after the inner material passes the lower end portion of the rotating wheel, the rotating wheel is lowered to press the dough piece tightly to the second conveying device. The rolled dough shaping device according to item 9 of the scope of the patent application, wherein the conveying surface of the second conveying device is set higher than the conveying surface of the first conveying device and a step is provided, and / or the foregoing The conveying speed of the second conveying device is set to be faster than the conveying speed of the first conveying device and is provided with a speed difference. A dough piece on which a solid internal material is placed on the bottom side of the dough piece is passed through the foregoing The first conveying device performs conveying. When the dough pieces are transferred from the first conveying device to the second conveying device, the bottom side of the dough pieces is bent upward by using the step and / or speed difference, so that the The bottom side end surface contacts the rotating wheel, and after the dough piece and the inner material are sandwiched between the rotating wheel and the second conveying device, it starts to be wound around the inner material, and then abuts against the turning plate to be clamped. In the state between the pressure plate and the second conveying device, the dough piece is further wound around the inner material, and the rolled dough shaping device performed in this manner is provided with a device for rotating the dough A second actuator for lifting and lowering the wheel with respect to the second conveying device, and a control device for controlling the second actuator to rotate the dough piece after the dough piece abuts on the pressure plate. The wheel is lowered to press the dough sheet tightly against the second conveying device, and the actuator is controlled to lower the spreading roller to stretch the dough sheet. A dough sheet stretching method is a method for stretching a dough sheet having a substantially triangular shape. The dough sheet is provided with a mounting table and a rolling roll. The mounting table is used to place the dough sheet. The rolling table is rotated above. The spreading roller is provided with a plurality of protrusions formed along the circumferential direction, and the dough piece is stretched by the relative movement of the mounting table and the spreading roller. When the dough piece is sandwiched between the placing table and the extension roller, the dough piece is restrained from moving in the width direction by the protruding portion, and the retained dough of the dough piece is moved upstream along the moving direction. Push back and stretch. The dough sheet stretching method according to item 12 of the patent application scope, wherein the stretching roll is set to be able to be raised and lowered relative to the mounting table, and when the bottom edge of the dough sheet on the downstream side passes below the stretching roll The distance between the extension roller and the mounting table is relatively far away, and after the bottom edge passes below the center position of the extension roller, the interval is approached to a required interval to extend the dough piece. A rolling dough shaping method, characterized in that, using the dough sheet stretching method according to item 12 of the patent application scope, the mounting table is a conveying device that transports the dough sheet to a downstream side, and a downstream side of the stretching roll. A rolling device is provided, and the dough piece is rolled by the rolling roller, and then rolled by the rolling device. The rolling dough shaping method according to item 14 of the scope of patent application, wherein the dough piece is stretched between the stretching roller and a first conveying device provided in the conveying device, and the rolling device is provided in the foregoing Above the second conveying device included in the conveying device, when the dough piece is rolled up, a rotating wheel provided in the rolling device tightly presses the dough piece against the second conveying device. The rolling dough shaping method according to item 14 of the scope of patent application, wherein the dough piece on which the solid inner material is placed on the bottom side of the dough piece is conveyed by the first conveying device. The device carries, when the inner material on the dough piece passes below the extension roller, the extension roller is raised to move away from the inner material, and after the inner material passes below the center position of the extension roller, the extension roller is moved. Descending to extend the dough piece, the rolling device is provided with a rotating wheel that can be raised and lowered relative to the conveying device, and when the inner material on the dough piece passes below the rotating wheel, the rotating wheel is raised To come into contact with the inner material, and after the inner material passes the lower end portion of the rotating wheel, the rotating wheel is lowered to press the dough piece tightly to a second conveying device provided in the conveying device. The rolling dough shaping method according to item 16 of the scope of patent application, wherein when the rotating wheel is in contact with the inner material, the rolling device starts rolling the dough piece. The rolling dough shaping method according to item 14 of the scope of patent application, wherein the conveying surface of the second conveying device provided in the conveying device of the rolling device is set to be higher than the first conveying device provided in the conveying device. The conveying surface is higher and a step is provided, and / or the conveying speed of the second conveying device is set to be faster than the conveying speed of the first conveying device and a speed difference is provided, which will be on the bottom side of the dough piece The dough pieces on which the solid inner material is placed are transported by the first conveying device. When the dough pieces are transferred from the first conveying device to the second conveying device, the step and / or speed are used. Poorly, the bottom side of the dough piece is bent upward, and the bottom side end surface contacts the rotating wheel provided in the rolling device, and the dough piece and the inner material are sandwiched between the rotating wheel and the second conveying device. After being wound around the inner material in a state of abutment, it abuts the pressure plate of the rolling device, and the dough piece is further sandwiched between the pressure plate and the second conveying device. In the rolling dough shaping method carried out in this way, after the dough piece abuts on the pressure plate, the stretching roll is lowered to stretch the dough piece, and The rotating wheel is lowered to tightly press the dough piece to the second conveying device. The rolled dough shaping method according to claim 16 or claim 18, wherein a concave portion is formed on the upper surface of the bottom side of the dough piece, and an inner material is placed on the concave portion.