JP4437454B2 - Method and apparatus for extruding dough having a spiral pattern - Google Patents

Description

The present invention relates to a method and apparatus for continuously extruding a plurality of food doughs in a dough such as cookie dough, ice cream, kamaboko or other kneaded dough, and more specifically, a stick-like food dough to be extruded. The present invention relates to a method and an apparatus for extruding a dough having a spiral pattern on a transverse cut surface.

Conventionally, as a means of forming a pattern of characters and figures on the horizontal cut surface of a stick-shaped food dough that is extruded by continuously joining and extruding multiple food doughs, around the inner cylinder where the extrusion port is formed in an arbitrary pattern In addition, there are those in which the extrusion port is surrounded by an outer cylinder formed in an arbitrary shape, and ice creams having different colors and the like are extruded from each cylinder. In such an apparatus, it is possible to extrude a food dough having a spiral pattern on the lateral cut surface by forming the extrusion opening of the inner cylinder in a spiral pattern (for example, Patent Document 1).

In addition, inside the cylindrical mold whose inner surface is cylindrical, the tip has a conical shape, and an extrusion nozzle having a plurality of extrusion ports on the conical surface is rotatably provided, and the food dough is extruded from the extrusion port. However, there has been a spiral molding apparatus that forms a spiral pattern on the transverse cut surface of the rod-shaped food dough extruded by rotating the cylindrical mold and the extrusion nozzle relatively (for example, Patent Document 2).
Japanese Utility Model Publication No. 58-068888 JP-A 61-135549

However, in Patent Document 1, only a spiral pattern that is substantially similar to the shape of the extrusion port of the inner cylinder can be formed, and when a spiral pattern having a different number of windings is formed, it is necessary to replace it with another inner cylinder. There were a number of types of spiral patterns, and the inner cylinders had to be aligned. In addition, in order to form a spiral pattern, food dough extruded from the outer cylinder must be poured between the vortex lines that overlap in layers at the extrusion opening of the inner cylinder. However, it may be difficult to enter between the overlapping vortex lines, and a beautiful spiral pattern could not be formed.

Moreover, in the said patent document 2, the structure must be formed by forming the front-end | tip part of an extrusion nozzle in a cone shape, or providing a partition wall over an internal full length, especially dough to extrude is extruded. When many types are used, there is a problem that the partition wall is increased and it is difficult to manufacture the extrusion nozzle. Furthermore, since the internal structure of the extrusion nozzle is complicated, there is a problem that it is difficult to clean and unsanitary.

The present invention provides a dough extrusion method and apparatus capable of forming a spiral pattern with a simple structure and adjusting the number of spiral patterns and the thickness of the spiral line. It is another object of the present invention to provide a dough extrusion method and apparatus capable of forming not only a single spiral pattern but also a plurality of spiral patterns.

The present invention has been made in view of the above-described problems, and the invention according to claim 1 is directed to an extrusion nozzle portion having an inner cylinder for supplying an inner packaging material concentrically inside an outer cylinder for supplying an outer shell material. and the inner wrapper by supplying crust materials and inner material joined concentrically at the junction port in the extrusion nozzle portion, the outer skin material and inner material by induction plate provided in Oite radially downstream of the joint opening A part is divided in the circumferential direction, and the guide plate is rotated in the circumferential direction to guide the outer skin material into the inner packaging material side in the radial direction by the pressing surface of the guiding member . A method for extruding a dough having a spiral pattern, characterized by forming a spiral pattern by an outer skin material inside .

According to a second aspect of the present invention, there is provided an extrusion nozzle part having an inner cylinder concentrically inside the outer cylinder, a dough supply part for supplying an outer skin material and an inner packaging material to the extrusion nozzle part, and driving of each part In the dough extruding apparatus provided with a control unit for controlling the inside of the extruding nozzle unit , the outer cylinder to which the outer covering material and the inner covering material are joined, and the passage of the outer covering material and the inner covering material on the downstream side of the joint opening of the inner cylinder are provided. A guide plate crossing a part is rotatably provided in the circumferential direction of the outer cylinder, the guide plate guides the outer skin material so as to enter the radial direction toward the inner packaging material side, and the outer skin material is placed inside the inner packaging material. The apparatus for extruding a dough having a spiral pattern is characterized in that the control unit controls the rotation of the guide plate so as to form a spiral pattern.

According to the present invention, since the guide plate provided rotatably in the extrusion nozzle portion reliably guides the outer skin material to the inner packaging material side, a beautiful spiral pattern can be formed on the transverse cut surface of the fabric extruded from the outer cylinder. In addition, the number of spiral patterns and the thickness of the spiral lines can be adjusted, and it is no longer necessary to align the inner cylinders by the number of types of spiral patterns.

In addition, by providing a plurality of guide plates, it is possible to form not only a single spiral pattern, but a plurality of spiral patterns, a ridge pattern, etc., which can be enjoyed visually.

Furthermore, it is a simple structure in which a guide plate is rotatably provided that crosses a part of the passage of the outer skin material and the inner packaging material joined to the downstream side of the joint port for joining the outer skin material and the inner packaging material in the extrusion nozzle portion. Therefore, manufacture of a member is easy. Moreover, since it can wash | clean easily, it is hygienic.

Hereinafter, the extrusion apparatus 1 which concerns on 1st embodiment of this invention is demonstrated using drawing. FIG. 1 is a front explanatory view schematically showing the entire extrusion apparatus 1. FIG. 2 is an explanatory front view of the extrusion nozzle unit 4 shown in FIG. 3 is an explanatory top view of the extrusion nozzle portion 4 in FIG. 2 by a transverse cut surface, where (a) is an AA cross-sectional arrow view, (b) is a BB cross-sectional view view, and (c). ) Is a CC cross-sectional arrow view.

The structure of the extrusion apparatus 1 is demonstrated with reference to FIG. 1 thru | or FIG. The extrusion apparatus 1 includes a skin material supply unit 2 that supplies a skin material DA that is a food dough to an extrusion nozzle unit 4 to be described later, an inner material supply unit 3 that supplies an internal packaging material DB that is a food dough to the extrusion nozzle unit 4, The extrusion nozzle unit 4 that joins the food dough supplied from the dough supply units 2 and 3 and continuously extrudes the dough as a rod-shaped food dough DC, the dough conveying unit 8 that conveys the rod-shaped food dough DC, and the driving of each of the above units The control part 9 to control is provided.

The outer skin material supply unit 2 and the inner packaging material supply unit 3 are provided with screw conveyors (not shown) that convey the food dough inside the hoppers 21 and 31 that accommodate the respective food dough, and further, on the downstream side of the screw conveyor conveyance Metering feeding parts 23 and 33 having a vane pump mechanism (not shown) are provided. The outer skin material supply unit 2 and the inner packaging material supply unit 3 are linked to the control motors M1 and M2 via a rotational power transmission mechanism such as a gear train, and are provided so as to be adjustable by control from the control unit 9 described later. ing. The outer skin material supply unit 2 and the inner packaging material supply unit 3 may be a known supply mechanism, and are not limited to the above mechanism as long as the apparatus can stably supply the dough to the extrusion nozzle unit 4.

The extrusion nozzle unit 4 includes an upper casing 5 provided with a connection port 51 connected to the outer skin material supply unit 2 and a connection port 53 connected to the inner packaging material supply unit 3 on each side. The upper casing 5 is provided with a cylindrical inner cylinder 55 through which the inner packaging material DB can pass so as to be connected to the connection port 53, and the inner packaging material DB is pushed out to the downstream end of the inner cylinder 55. A joint port 56 as an outlet is provided. Further, an outer cylinder portion 57 through which the outer skin material DA can pass substantially concentrically with the inner cylinder 55 is provided outside the inner cylinder 55 so as to communicate with the connection port 51. An annular joint 58 as an extrusion opening for the skin material DA is provided outside the joint 56. Therefore, the inner packaging material DB that has passed through the joint port 56 is joined and covered with the outer skin material DA that has passed through the joint port 58.

Further, the lower end portion of the outer cylindrical portion 57 is fitted and fixed to the upper bearing 71. Further, a rotating member 6 having a guide plate 65 provided on the inner peripheral surface 61 is rotatably supported on the lower side of the upper bearing 71. The lower side of the rotating member 6 is pivotally supported by a lower bearing 73 fixed to the lower casing 7. Further, the outer nozzle 41 is detachably fitted from the lower side of the lower casing 7 and is fixed by a set ring 75 that is screwed into the lower casing 7. In the extrusion nozzle part 4 configured as described above, the outer cylinder part 57, the rotating member 6, the lower casing 7, and the outer nozzle 41 constitute an outer cylinder 45 that forms a flow path through which the outer skin material DA passes.

The rotating member 6 is linked to a control motor M3 through a gear train (not shown). The guide plate 65 is disposed below the joint port 58 of the outer cylinder part 57 and the joint port 56 of the inner cylinder 55 and is arranged on the inner peripheral surface of the rotating member 6 so as to cross part of the passage between the outer skin material DA and the inner packaging material DB. 61 is attached. In the present embodiment, the guide plate 65 is disposed so as to intersect the rotation center axis of the rotating member 6, and rotates in the circumferential direction R of the outer cylinder 45 as the rotating member 6 rotates. The guide plate 65 may be provided, for example, by providing a protrusion on the inner peripheral surface 61 of the rotating member 6 and fixing the protrusion to the protrusion with a screw or the like.

Below the extrusion nozzle unit 4, a dough conveyance unit 8 that conveys the rod-shaped food dough DC extruded from the extrusion nozzle unit 4 is provided. The fabric conveying unit 8 is a belt conveyor provided by winding an endless belt 81 around a driving roller 83 and other plural rollers. A cradle 85 that supports the rod-shaped food dough DC is provided on the inner side of the belt 81 located below the extrusion port 42 of the extrusion nozzle unit 4 so that the vertical position can be adjusted. Further, the cradle 85 is provided so as to be inclined with respect to the transport direction, and is adjusted and fixed according to the vertical position of the cradle 85. The belt 81 is linked to the drive roller 83 through a rotational power transmission mechanism such as a chain / sprocket and is linked to a control motor M4, and can be adjusted to be almost the same as the extrusion speed of the bar-shaped food dough DC extruded from the extrusion nozzle section 4. Is provided.

The control unit 9 includes an operation panel 91 and a control device 93. The operation panel 91 is used to set and input the supply amount of the skin material DA from the skin material supply unit 2 and the internal material DB from the internal material supply unit 3, the rotational speed of the rotating member 6, the conveyance speed of the conveyor belt 8, and the like. A display unit is provided. In addition, the control device 93 has a control function for instructing each of the above units to drive based on data set and input to the operation panel 91.

Next, a process of forming a spiral pattern on the food dough in the extrusion nozzle portion 4 will be described. Here, the food dough is a cookie dough of different colors, the white dough is stored in the hopper of the outer skin supply unit 2, and the black dough containing cocoa powder is stored in the hopper of the inner packaging supply unit 3 explain. When each food dough supply unit 2, 3 supplies the outer shell material DA and the inner packaging material DB to the extrusion nozzle unit 4 based on the supply amount set in the control unit 9, the outer shell material DA that passes through the joint 58 of the outer cylinder 45. And the inner packaging material DB passing through the joint port 56 of the inner cylinder 55 are joined concentrically. Then, on the downstream side of the joint ports 56 and 58, a part of the joined outer skin material DA and the inner packaging material DB that flow down in the outer cylinder 45 is divided by the guide plate 65. Furthermore, when the rotating member 6 rotates in the rotation direction R based on the drive command of the control unit 9 and the pressing surface 66 of the guide plate 65 presses the outer skin material DA, the separated outer skin material DA is pressed against the pressing surface. While being guided so as to enter 56 toward the inner packaging material DB side (synonymous with the center side), the inside of the outer cylinder 45 flows down toward the downstream side (see FIG. 3A).

Furthermore, the outer skin material DA and the inner packaging material DB that pass through the extrusion nozzle portion 4 toward the downstream side are subjected to a twisting action due to the rotation of the guide plate 65, and a spiral pattern due to the outer skin material DA is formed inside the inner packaging material DB. It is formed (see FIG. 3B). Moreover, since the flow path of the outer nozzle 41 is narrowed toward the extrusion port 42, the thickness of the vortex line is formed thinner as the diameter of the food dough flowing down (see FIG. 3C).

And the rod-shaped foodstuff DC is continuously extruded from the extrusion port 42 of the outer nozzle 41, and it is mounted on a belt and conveyed. Thereafter, the rod-shaped food dough DC is cut to a required length on a belt, frozen, sliced into a thin plate by a separate cutting device, and baked. The means for cutting the extruded bar-shaped food dough DC may be, for example, a wire cutter that reciprocates or rotates while sliding on the lower surface of the outer nozzle 41, and further sliced into a thin plate with this wire cutter. May be.

The spiral pattern shown in FIG. 4 exemplifies a spiral pattern in which the number of spirals and the thickness of spiral lines are changed by changing the setting of each part of the extrusion device 1. FIG. 4A shows a case where the rotation speed (synonymous with the number of rotations) of the guide plate 65 of the rotating member 6 is increased, and the number of vortex turns increases and the vortex line is formed thin. In addition, when the outer nozzle 41 is lengthened and the flow path of the food dough is lengthened, the twisting action due to the rotation of the guide plate 65 is strongly received, so that the number of vortex turns increases and the vortex line is formed thin. On the contrary, when the rotational speed of the guide plate 65 is slowed or the outer nozzle is shortened, the number of vortex turns decreases and the vortex line is formed thick.

FIG. 4B shows a case where the supply ratio of the skin material DA is increased by changing the ratio of the supply amount of the skin material DA and the inner packaging material DB, and the vortex line formed by the skin material DA changes thickly. The vortex line formed by the inner packaging material DB changes finely. When the ratio of the supply amount of the inner packaging material DB is increased, the vortex line formed by the inner packaging material DB changes thickly and the vortex line formed by the outer skin material DA changes thinly.

FIG. 4C shows a case where the height H of the guide plate 65 is changed to a low value, and the guide plate 65 is formed by reducing the distance that the pressing surface 66 of the guide plate 65 presses the outer skin material DA. Since the effect of guiding the outer skin material DA toward the inner packaging material DB is reduced, the penetration of the outer skin material DA toward the center becomes shallower and the number of vortex turns is also reduced. Further, when the supply amount of the skin material DA and the inner packaging material DB is increased to increase the flow rate of the food dough in the extrusion nozzle portion 4, the effect of the rotational action due to the rotation of the guide plate 65 is reduced. The number of vortex turns also decreases.

In addition, although it illustrated and demonstrated so that there may be no clearance gap between the guide plate 65 and the internal peripheral surface 61 of the rotation member 6 in the attachment site | part (root part) of the induction | guidance | derivation plate 65, a clearance gap is formed in a part of this attachment site. When provided, a part of the skin material DA passes through the gap, so that the amount of the skin material DA that enters the inner side along the pressing surface 66 of the guide plate 65 decreases, and the vortex enters the inner side. It becomes shallower.

Next, the extrusion nozzle part 4 of the extrusion apparatus 1 which concerns on 2nd embodiment of this invention is demonstrated using figures. FIG. 5 is an explanatory view showing a longitudinal cut surface of the extrusion nozzle. 6A and 6B are explanatory views showing a transverse cut surface in the extrusion nozzle portion 4, wherein FIG. 6A is a cross-sectional view taken along the line DD in FIG. 5, and FIG. 6B is a cross-sectional view taken along the line EE in FIG. It is. Moreover, FIG. 7 illustrates the horizontal cut surface of the rod-shaped food dough DC extruded from the extrusion nozzle part 4.

Referring to FIG. 5 and FIG. 6A, the rotating member 6 includes three guide plates 65 that are radially spaced from the rotation center of the rotating member 6. Each guide plate 65 is disposed below the joint port 58 of the outer cylinder part 57 and the joint port 56 of the inner cylinder 55 and passes through the outer cylinder 45 of the extrusion nozzle part 4 and flows between the outer shell material DA and the inner packaging material DB. It is provided to cross a part of. Similarly to the first embodiment, when the outer shell material DA and the inner packaging material DB are supplied to the extrusion nozzle portion 4 from the supply portions 2 and 3, the outer shell material DA and the inner tube 55 that pass through the joint 58 of the outer tube 45 are joined. The inner packaging material DB passing through the mouth 56 is joined concentrically. Then, on the downstream side of the joint ports 56 and 58, a part of the joined outer skin material DA and inner packaging material DB flowing down in the outer cylinder 45 is divided into three sections by three guide plates 65. Further, the rotating member 6 rotates in the rotation direction R based on the drive command of the control unit 9, and the pressing surface 66 of each guide plate 65 presses the covering material DA, so that the divided covering material DA is While being guided so as to enter the pressing surface 56 toward the inner packaging material DB side (synonymous with the center side), the inside of the outer cylinder 45 flows down toward the downstream side.

Furthermore, referring to FIG. 6B, the outer skin material DA and the inner packaging material DB that flow down toward the downstream side in the outer nozzle 41 are subjected to a twisting action due to the rotation of the guide plate 65, and the inner packaging material DB A three-striped spiral pattern made of the outer skin material DA is formed inside.

FIG. 7A shows an example of a transverse cut surface of the rod-shaped food dough DC extruded from the extrusion nozzle portion 4. The outer skin material DA guided by the three guide plates 65 forms three spirals on the inner packaging material DB side. Moreover, FIG.7 (b) has shown what the outer skin material DA induced | guided | derived to the center part of the rod-shaped food dough DC, and formed the wrinkle pattern. This is because, for example, the rotational speed of the rotating member 6 is increased or the supply ratio of the skin material DA is increased with respect to the setting of each part of the extrusion device that forms the spiral pattern shown in FIG. It has been changed.

The description of the extrusion apparatus 1 according to the embodiment of the present invention is generally as described above, but the present invention is not limited to this, and various modifications can be made within the scope of the claims. For example, one or three guide plates 65 provided on the rotating member 6 are shown. However, by providing two or four guide plates 65, two or four spiral patterns or even wrinkles are formed on the transverse cut surface of the rod-shaped food dough DC. A pattern can be formed. Further, the guide plate 65 has been described so as to intersect with the rotation center axis of the rotating member 6, but the guide plate 65 may be provided to be inclined in any direction with respect to the radial direction of the rotating member 6. You may incline with respect to a direction (up-down direction in FIG. 2). Further, the pressing surface 66 of the guide plate 65 may be provided on a curved surface instead of a flat surface. In these cases, the angle at which the outer skin material DA abuts on the guide plate 65 changes, and the degree of guidance of the outer skin material DA toward the inner packaging material DB changes to change the shape of the spiral.

FIG. 8 shows a case where three types of food doughs having different colors and blending are used. FIG. 8A is a front explanatory view of the extruding nozzle portion 4 by a longitudinal cut surface. FIG. 8B is an explanatory view of the bar-shaped food dough DC extruded from the extrusion nozzle portion 4 by a transverse cut surface. As shown in FIG. 8A, an intermediate cylinder 59 is concentrically provided between the inner cylinder 55 and the outer cylinder part 57 in the upper casing 5 of the extrusion nozzle part 4. Then, the intermediate material DD is supplied between the inner cylinder 55 and the intermediate cylinder 59 from a known cloth supply unit provided separately. The intermediate material DD is extruded from an annular joint port 591 formed between the inner tube 55 and the intermediate tube 58, covers the inner packaging material DB pushed out from the joint port 56 of the inner tube 55, and joins the outer tube portion 57. It is covered with a skin material DA extruded from the mouth 58 and joined to three layers.

A part of the joined three-layer food dough that flows down in the outer cylinder 45 at positions below the joint ports 56, 591, and 58 is divided by the guide plate 65. Further, the rotating member 6 rotates in the rotation direction R based on the drive command of the control unit 9, and the pressing surface 66 of the guide plate 65 presses the outer skin material DA, so that the separated outer skin material DA becomes the pressing surface 66. Accordingly, the intermediate material DD is pressed while entering the inner packaging material DB side. Therefore, as shown in FIG. 8B, the outer shell DA that is layered with the intermediate material DD flows down toward the downstream side while being guided to the inner packaging material DB side. Then, due to the rotational twisting action of the guide plate 65, the vortex line where the outer skin material DA and the intermediate material DD overlap each other enters the inner packaging material DB side, and a spiral pattern is formed on the transverse cut surface of the rod-shaped food dough DC. That is, in the present embodiment, the skin material DA and the intermediate material DD that overlap in a layer form correspond to the skin material based on the gist of the present invention. Furthermore, the joint port 58 of the outer cylinder part 57 and the joint port 591 of the intermediate cylinder 59 correspond to the joint port of the outer cylinder based on the gist of the present invention.

Moreover, in the said Example, although demonstrated so that the member which rotationally drives the guide plate 65 might be provided in the internal peripheral surface 61 of the rotating member 6 which forms the outer cylinder 45, the member rotated to the outer side or inner side of an inner cylinder is provided. The rotation member 6 can be provided with a guide plate 65.

Moreover, in the said Example, although the joint port 56 of the inner cylinder 55 was demonstrated circularly, you may provide in polygonal shapes, such as a square, Even in such a case, the channel | path of the outer_shell | wood_shell DA and the inner packaging material DB It is possible to guide the outer skin material DA to the inner packaging material DB side by rotating the guide plate 65 in the circumferential direction of the outer cylinder 45 so that the outer nozzle 41 is pressed. A spiral pattern is formed on the transverse cut surface of the rod-shaped food dough DC extruded from the outlet 42.

It is front explanatory drawing which showed roughly the extrusion apparatus 1 which concerns on 1st embodiment of this invention. It is front explanatory drawing by the vertical cut surface which showed schematically the extrusion nozzle part 4 of the extrusion apparatus 1 of FIG. It is upper surface explanatory drawing by the horizontal cut surface which showed the extrusion nozzle part 4 of the extrusion apparatus 1 of FIG. 1 schematically. It is explanatory drawing which showed roughly the spiral pattern formed in the horizontal cut surface of the rod-shaped foodstuff DC extruded from the extrusion apparatus 1 of FIG. It is front explanatory drawing by the vertical cut surface which showed schematically the extrusion nozzle part of the extrusion apparatus 1 which concerns on 2nd embodiment of this invention. It is upper surface explanatory drawing by the horizontal cut surface which showed the extrusion nozzle part 4 of the extrusion apparatus 1 of FIG. 5 schematically. It is explanatory drawing which showed roughly the spiral pattern formed in the horizontal cut surface of the rod-shaped foodstuff DC extruded from the extrusion apparatus 1 of FIG. It is explanatory drawing which showed the other Example roughly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Extruder 2 Outer material supply part 3 Inner packaging material supply part 4 Extrusion nozzle part 41 Outer nozzle 42 Extrusion port 45 Outer cylinder 5 Upper casing 55 Inner cylinder 56 Joint port 57 Outer cylinder part 58 Joint port 59 Intermediate cylinder 591 Joint port
6 Rotating member 61 Inner peripheral surface 65 Guide plate 66 Press surface 7 Lower casing 8 Dough conveying unit 9 Control units M1 to M4 Control motor DA Outer material DB Inner packaging material DC Rod food dough DD Intermediate material R Rotating direction (circumferential direction)

Claims (2)

The outer cover material and the inner cover material are supplied concentrically to the extrusion nozzle portion provided with the inner supply material supply inner tube concentrically inside the outer cover material supply outer tube. joined to, as well as divided portions of the outer skin material and inner material in the circumferential direction by guide plate provided on Oite radially downstream of the joint opening, wherein by rotating the guide plate in the circumferential direction A method for extruding a dough having a spiral pattern , wherein the outer cover material is guided in a radial direction toward the inner packaging material side by the pressing surface of the guide member, and a spiral pattern is formed by the outer skin material inside the inner packaging material . An extruding nozzle section having an inner cylinder concentrically inside the outer cylinder, a dough supply section for supplying an outer covering material and an inner packaging material to the extruding nozzle section, and a control section for controlling the driving of each section. in the extrusion apparatus, wherein the inside extrusion nozzle portion, said outer induction plate across the portion of the passageway of the outer skin material and inner material on the downstream side of the joint opening of the outer tube and the inner tube outer skin material and inner material is bonded The control unit is provided so as to be rotatable in a circumferential direction of the cylinder, and the guide plate guides the outer skin material to enter the radial direction toward the inner packaging material side, and forms a spiral pattern by the outer skin material inside the inner packaging material The apparatus for extruding a dough having a spiral pattern, characterized in that the rotation of the guide plate is controlled by:

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