JP2007000093A - Apparatus and method for discharging food dough - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for discharging food dough useful in a bean jam-wrapping machine, which prevents food dough from penetrating into a sliding seal part arranged at a slight gap. <P>SOLUTION: The apparatus for discharging food dough has constitution that both opposed sliding surfaces relatively rotating and moving arranged at an outer cylinder part are equipped with spiral grooves mutually in the opposite directions and the spiral grooves are installed in such directions that the spiral grooves act to push back the food dough, penetrating into the gap of the sliding surfaces, to the outer cylinder part with the rotation of the sliding surfaces. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a food dough discharging method and a discharging apparatus for continuously discharging food dough such as confectionery and bread.

The food dough dispensing device used in wrapping machines that manufacture wrapping products such as confectionery and anpan has a concentric outer cylinder part and inner cylinder part, and the inner packaging material such as ann is supplied into the inner cylinder part The outer covering material such as the wrapping cloth is supplied to the annular space between the outer cylinder part and the inner cylinder part. The inner packaging material is simultaneously ejected from the inner nozzle portion provided in the inner cylinder portion, and the outer skin material is simultaneously ejected from the outer nozzle portion provided in the outer cylinder portion and the narrow annular nozzle portion between the inner nozzle portions. A heavy or multiple continuous rod-shaped food dough body is formed.
In order to stir and fluidize the dough supplied to the annular space between the outer cylinder part and the inner cylinder part, a rotating stirring bar or blade is provided in the annular space part. A rotating body provided with blades and the like is provided rotatably between the upper and lower outer cylinder portions and the lower outer cylinder portion. However, since the food dough supplied to the annular space is discharged from the annular nozzle portion of the discharge unit, it is necessary to supply the food dough with a high internal pressure, and the rotating body, Since the food dough may enter the power transmission part of the discharge device from the sliding seal part between the upper outer cylinder part and / or the lower outer cylinder part, the sliding seal part is reinforced.

As an example of strengthening the sliding seal part, an oil seal is provided in the sliding seal part between the rotating body and the upper outer cylinder part and the lower outer cylinder part, and a food dough that tries to enter the sliding seal part is provided. There is a case of sealing (see Patent Document 1).
However, as a further problem, for example, when discharging fermented dough such as bread dough, large bubbles contained in the dough are inherently present in the rod-shaped food dough discharged from the discharge device without being discharged in the discharge device. There was a case. When such a rod-shaped food dough is divided into encapsulated foods by a known encapsulating and cutting device, and fermented and baked by a conventional method to form protein, etc., a cavity like a blister is formed on the surface of the outer skin. It could end up with a poor-looking product.
Therefore, when discharging food dough containing air bubbles such as bread dough, the sliding seal portion is not a sealing device but a seal portion provided with a slight gap. In Patent Document 1, a spiral groove is provided on one of the opposed sliding surfaces in order to return the food dough about to enter the sliding seal portion to the annular space. Furthermore, a reservoir portion for temporarily storing the infiltrated food dough is provided between the bearing portion that supports the rotating body or the rotating gear body and the annular space portion, and the food dough that has entered the reservoir portion. The structure of the machine has been improved in order to discharge or remove the wastewater, and the disassembly and assembly have been simplified and facilitated.
However, when operating the wrapping machine for a long time, removing unnecessary dough discharged from the reservoir of the food dough discharging device or disassembling the food dough discharging device requires an operator, There was a problem that the machine had to be stopped and productivity was lowered.
JP 2004-41008 A

The present invention solves the above-described problems, and provides a food dough discharging method and a discharging device capable of suppressing the food dough from entering the sliding seal portion having a slight gap. is there.

Therefore, the first means for solving the problems of the present invention is to provide the spiral grooves in opposite directions on both of the opposed sliding surfaces provided in the outer cylinder portion that rotate and move relative to each other. The groove is provided in a direction in which the food dough that enters the gap between the sliding surfaces acts to push the food dough back into the outer tube portion with the rotation.

Further, the second means for solving the problem of the present invention is that the spiral grooves, which are provided in opposite directions on both opposing sliding surfaces, are rotated and moved relative to each other so as to be supplied into the outer cylinder portion. The food dough discharging method is characterized in that the food dough entering the gap of the sliding surface is acted to push back into the outer cylinder portion.

According to the present invention, when a plurality of food doughs are polymerized and discharged as continuous concentric rod-shaped food doughs, the food dough can be prevented from entering the bearing portion of the rotating body (or rotating gear body). A stable discharge state can be maintained over time.

Hereinafter, the food dough discharging apparatus 1 according to the first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view with a longitudinal section showing an outline of the food dough discharging apparatus 1. FIG. 2 is an explanatory view showing an outline of the upper and lower sliding seal portions of the food dough discharging apparatus 1.

Referring to FIG. 1, the food dough discharging apparatus 1 includes an outer cylinder portion 2 and an inner cylinder portion 3 that are provided concentrically. The outer cylinder part 3 is provided with an upper outer cylinder part 2-1 and a lower outer cylinder part 6 below the upper outer cylinder part 2-1, and a rotating body 5 is rotatably provided between the upper outer cylinder part 2-1 and the lower outer cylinder part 6. ing. Further, an upper sliding seal portion 8-1 is provided between the upper outer cylinder portion 2-1 and the rotating body 5, and a lower sliding seal portion 8-2 is provided between the lower outer cylinder portion 6 and the rotating body 5. Provided. The lower outer cylinder portion 6 is integrally provided with an outer nozzle holder 6-1 and an outer nozzle 6-2 that is detachably screwed to the outer nozzle holder 6-1. The rotating gear body (rotating body) 5 includes an agitating rotating body 5-2 having an agitating rod 5-1, and a gear body 5-3 supported on the base 10 by an upper bearing 7-1 and a lower bearing 7-2. Have. The stirring rotator 5-2 and the gear body 5-3 are easily fixed. The stirring rod 5-1 rotates the annular space portion 4 between the outer cylinder portion 2 and the inner cylinder portion 3 in accordance with the rotation of the stirring rotating body 5-2, and agitates the dough supplied to the annular space portion 4. And fluidize. The sliding seal parts 8-1 and 8-2 are assembled so as to have a substantially constant gap between the upper outer cylinder part 2-1, the lower outer cylinder part 6 and the rotating body 5, respectively. An inner nozzle 3-1 is detachably screwed to the lower portion of the inner cylinder portion 3.

A reservoir portion 9 having an upper reservoir portion 9-1 and a lower reservoir portion 9-2 is provided in the vicinity of the upper bearing 7-1 and the lower bearing 7-2. An upper seal portion 7-3 and a lower seal portion 7-4 are provided so that the food dough that has entered the pool portion 9 does not enter the upper bearing 7-1 and the lower bearing 7-2. The gear body 5-3 meshes with a drive gear (not shown) provided in the body of the wrapping machine and is driven to rotate. The stirring rotator 5-2 that is easily fixed to the gear body 5-3 is provided with a plurality of through holes (not shown) penetrating the upper reservoir portion 9-1 and the lower reservoir portion 9-2. May be. The lower base mounting portion 10-4 may be provided with a discharge opening (not shown) for discharging the fabric accumulated in the lower pool portion 9-2 to the outside. The opening can be freely opened and closed.

The upper and outer cylinder parts 2-1 and the inner cylinder part 3 are connected and fixed by a mounting nut part 2-3. The upper outer cylinder part 2-1 is detachably fixed to the upper base attaching part 10-3 by a connecting metal fitting 3-2 using a bayonet mechanism. The lower outer cylinder portion 6 is detachably fixed to the lower base attachment portion 10-4 using a bayonet mechanism. The stirring rotator 5-2 can be provided with a round bar-shaped stirring bar 5-1, a feed blade (not shown, see Utility Model Registration No. 3032971, etc.) and the like. The outer shell material supply opening 2-4 of the upper outer cylinder portion 2-1 is provided with an outer skin material supply hole 11-1, and the inner packaging material supply opening 2-5 is provided with an inner packaging material supply hole 11-2. It is done.

Further, the upper sliding seal portion 8-1 and the lower sliding seal portion 8-2 will be described in detail with reference to FIG. The upper sealing material 8-1d is detachably provided in a state of being fitted and closely attached to the recess 2-1a provided on the inner side of the lower end of the upper outer cylinder part 2-1. Further, the lower sealing material 8-2d is provided so as to be detachable and replaceable in a state in which the lower sealing material 8-2d is fitted into and closely adhered to the recess 5-2a provided on the inner side of the lower end of the stirring rotating body 5-2. The upper sliding seal portion 8-1 is provided so as to relatively rotate and move with a substantially constant gap between the inner peripheral surface of the upper seal material 8-1d and the outer peripheral surface of the upper end portion of the rotating body 5. Yes. Further, the lower sliding seal portion 8-2 has a substantially constant gap between the inner peripheral surface of the lower seal material 8-2d and the outer peripheral surface of the upper end portion of the outer nozzle holder 6-1 of the lower outer cylinder portion 6. Thus, it is provided so as to relatively rotate. Each of the sealing materials 8-1d and 8-2d is a belt-like belt, and spiral grooves 8-1e and 8-2e are formed on each inner peripheral surface. In addition, a spiral groove 8-1f is formed on the outer peripheral surface of the upper end portion of the stirring rotator 5-2. Furthermore, a spiral groove 8-2f is formed on the outer peripheral surface of the upper end portion of the outer nozzle holder 6-1.

The spiral grooves 8-1e, 8-2e, 8-1f, and 8-2f prevent the food dough from entering the gaps between the sliding surfaces, and conversely push back to the food dough side (inside the outer cylinder). To fulfill. Therefore, for example, as shown in FIG. 2, when the stirring rotator 5-2 is rotated counterclockwise (counterclockwise) when viewed from the top of the paper surface in which the food material is supplied, the upper sealing material 8-1d is Since it is fitted in the outer cylinder part 2-1, is fixed to the outer cylinder part 2-1, and does not rotate, the direction of the spiral of the groove 8-1e is the dough for the food dough by the rotation of the stirring rotating body 5-2. It is a right-hand thread that pushes it back to the supply side. The direction of the spiral of the groove 8-1f of the stirring rotator 5-2 facing it is a left-hand thread opposite to the spiral inclination of the groove 8-1e. Further, since the lower sealing material 8-2d rotates integrally with the rotation of the stirring rotator 5-2, the spiral direction of the groove 8-2e is a left-hand screw. Then, the spiral direction of the groove 8-2f of the outer nozzle holder 6-1 facing it is a right-hand screw opposite to the spiral inclination of the groove 8-2e. That is, the respective spiral grooves provided on the opposed sliding surfaces are inclined in the opposite directions of the spirals, and are provided as if intersecting in a substantially X shape.

As the material of the sealing materials 8-1d and 8-2d, polymer materials such as plastic, rubber, elastomer and the like are suitable in view of ease of assembly such as attachment and detachment. Nitrile rubber, acrylic rubber, silicon rubber, fluorine rubber, tetrafluoroethylene rubber, and the like can be selected. In consideration of wear resistance, heat resistance, etc., high density polyethylene, polyacetal, polycarbonate and the like can be selected. The material of the parts in contact with the food dough should have less adhesiveness to the food dough.

The inner packaging material is supplied from the inner packaging material supply hole 11-2 of the food dough discharging apparatus 1 provided in this way using a known food dough supply device, and the outer skin material is supplied from the outer skin material supply hole 11-1 to the known food dough. Supply using a supply device. The supplied inner packaging material is discharged from the inner nozzle 3-1, and the outer skin material is concentrically covered with the inner packaging material and discharged from the outer nozzle 6-2 as a continuous rod-shaped food dough.

Moreover, FIG. 3 is explanatory drawing by the longitudinal cross-section which shows the outline | summary of the food dough discharge apparatus 1 which concerns on 2nd embodiment of this invention. In the second embodiment, the upper seal member 8-1d of the upper sliding seal portion 8-1 shown in the first embodiment is changed to an oil seal 8-11 as a sealing device. It is provided so as to slide directly with the inner peripheral surface of the lower end of the part 2-1. Thus, even when a sealing device is used for the upper sliding seal portion 8-1, a small gap is provided in the lower sliding seal portion 8-2. The large bubbles disappear, and the gas contained in the bubbles is discharged to the outside from the lower reservoir 9-2 of the food dough discharging apparatus 1 through the gap.

Table 1 shows a comparison between an experimental example using the food dough discharging apparatus 1 based on the second embodiment and a comparative example based on the prior art. In each experimental example and comparative example, the rotation of the stirring rotator 5-2 was rotated counterclockwise as described above, and the rotation speed was 150 rpm. The lower sealing material 8-2d had an outer diameter of 108.2 mm, an inner diameter of 102.6 mm, a width of 16.5 mm, and the direction of the spiral of the groove 8-2e was a left screw. This was shrunk in the recess 5-2a having an inner diameter of 108 mm provided inside the lower end of the stirring rotator 5-2 by utilizing the elasticity of the sealing material. The outer peripheral surface (sliding surface) of the outer nozzle holder 6-1 that opposes the inner peripheral surface (sliding surface) of the lower seal material 8-2d has an outer diameter of 102 mm, and the lower seal material 8- The gap with the inner peripheral surface (sliding surface) of 2d was set to about 0.2 mm on one side. The direction of the spiral of the groove 8-2f was a right-hand thread.

The inner nozzle 3-1 has an inner diameter of 16 mm, and the outer nozzle 6-2 has an inner diameter of 21 mm. Further, a general confectionery bread dough was used for the outer skin material, and a general granule was used for the inner packaging material. Then, the discharge amount of the outer skin material and the inner packaging material was 48 kg per hour, respectively, and the amount of the outer skin material that entered the lower sliding seal portion 8-2 in 15 minutes and was discharged to the lower reservoir portion 9-2 was measured.

Experimental example 1
The groove 8-2e of the lower sealing material 8-2d is a spiral groove having a number of stripes, a groove width of 1 mm, a groove depth of 0.8 mm, and a pitch between the grooves of 6 mm. Further, the groove 8-2f of the outer nozzle holder 6-1 is a spiral groove having a single groove, a groove width of 1.6 mm, a groove depth of 1.5 mm, and a pitch between the grooves of 3 mm. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 28 g.

Experimental example 2
The groove 8-2e of the lower seal material 8-2d was a spiral groove having three grooves, a groove width of 1 mm, a groove depth of 0.8 mm, and leads of 18 mm (pitch between grooves: 6 mm). In addition, the outer nozzle holder 6-1 was the same as in Experimental Example 1. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 18 g.

Experimental example 3
The groove 8-2e of the lower seal material 8-2d has nine stripes, a groove width of 1.2 mm, a groove depth of 0.8 mm, and a lead of 27.1 mm (pitch between grooves: 3.1 mm). It was a groove. In addition, the outer nozzle holder 6-1 was the same as in Experimental Example 1. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 0.4 g.

Experimental Example 4
The lower sealing material 8-2d was the same as in Experimental Example 1. Further, the groove 8-2f of the outer nozzle holder 6-1 is a spiral groove having a single groove, a groove width of 1.6 mm, a groove depth of 1.5 mm, and a pitch of 6 mm between the grooves. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 3 g.

Experimental Example 5
The lower sealing material 8-2d was the same as in Experimental Example 2. Further, the outer nozzle holder 6-1 was the same as that in Experimental Example 4. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 1 g.

Experimental Example 6
The lower sealing material 8-2d was the same as in Experimental Example 3. Further, the outer nozzle holder 6-1 was the same as that in Experimental Example 4. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 1 g.

Comparative Example 1
The groove 8-2e of the lower sealing material 8-2d is a spiral groove having a number of stripes, a groove width of 1 mm, a groove depth of 0.8 mm, and a pitch between the grooves of 6 mm. That is, it was the same as Experimental Examples 1 and 4. In addition, the outer nozzle holder 6-1 has a cylindrical surface without providing the groove 8-2f. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 86 g.

Comparative Example 2
The lower sealing material 8-2d has a cylindrical surface without providing the groove 8-2e. Further, the groove 8-2f of the outer nozzle holder 6-1 is a spiral groove having a single groove, a groove width of 1.6 mm, a groove depth of 1.5 mm, and a pitch between the grooves of 3 mm. That is, it was the same as Experimental Examples 1-3. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 55 g.

Comparative Example 3
The lower sealing material 8-2d was formed as a cylindrical surface without providing the groove 8-2e as in Comparative Example 2. Further, the groove 8-2f of the outer nozzle holder 6-1 is a spiral groove having a single groove, a groove width of 1.6 mm, a groove depth of 1.5 mm, and a pitch of 6 mm between the grooves. That is, it was the same as Experimental Examples 4-6. At this time, the amount of the outer skin material discharged to the lower reservoir 9-2 was 39 g.

As described above, in the comparative example based on the conventional technology, the amount of the outer skin material that entered the lower sliding seal portion 8-2 and was discharged to the lower reservoir portion 9-2 was 39 g to 86 g. In the experimental example based on the embodiment of the present invention, the amount was reduced to 0.4 g to 28 g. In particular, in Experimental Examples 2 to 6, extremely good results were obtained. Thus, in the sliding seal portion formed by the opposed sliding surfaces, the spiral grooves are engraved only on one sliding surface as in the conventional technique. It can be understood that the engraving of the spiral groove can suppress the food dough from entering the sliding seal portion.

When comparing experimental example 1 and experimental example 4, and experimental example 2 and experimental example 5, respectively, the pitch between the grooves of the spiral groove 8-2f of the outer nozzle holder 6-1 was changed from 3 mm to 6 mm. The amount of food dough entering from the dynamic seal part has been reduced. That is, it can be understood that providing a large lead angle of the spiral groove has a high effect of suppressing the food dough from entering the sliding seal portion.

In addition, when Experimental Examples 1 to 3 and Experimental Examples 4 to 6 are respectively compared, the lead of the groove 8-2e of the lower seal material 8-2d is changed from 6 mm to 18 mm or 27.1 mm, and the number of stripes is 1 to 3 By changing to strips and strips 9, the amount of food dough entering from the sliding seal portion was reduced. That is, it can be understood that by providing a large number of spiral grooves, the effect of suppressing the entry of the food dough into the sliding seal portion is high.

The description of the food dough dispensing apparatus 1 according to the embodiment of the present invention is generally as described above. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the claims. For example, in the second embodiment, a sealing device as a sealing member may be used for the lower sliding seal portion 8-2 instead of the upper sliding seal portion 8-1. Moreover, FIG. 4 is explanatory drawing by the longitudinal cross-section which shows the outline | summary of the food dough discharge apparatus 1 which concerns on 3rd embodiment of this invention. The third embodiment shows a case where the lower outer cylinder portion 6 is a rotation outer nozzle 6-3. The rotating body 5 includes an agitating rotating body 5-5 and a gear body 5-3 that are detachably screwed with the non-rotating nozzle 6-3. Other configurations of the rotating body 5 are provided in the same manner as the rotating body 5 shown in the above-described embodiment. That is, the food dough discharging apparatus 1 has a configuration in which only the upper sliding seal portion 8-1 is provided as the sliding seal portion. Such a non-rotating nozzle 6-3 is used when discharging a relatively strong dough such as koji dough or bread dough, and is formed into a rod-like shape by a known covering and cutting apparatus provided below the food dough discharging apparatus 1. When dividing the food to be encapsulated from the food dough, there is an effect of strengthening the binding at the cut site by cutting the food dough by twisting the cut portion of the food dough in cooperation with the enveloping cutting device.

It is explanatory drawing by the longitudinal cross-section which shows the outline | summary of the food dough discharge apparatus 1 which concerns on 1st embodiment of this invention. It is explanatory drawing which shows the outline | summary of the up-and-down sliding seal part of the food dough discharge apparatus 1 which concerns on 1st embodiment of this invention. It is explanatory drawing by the longitudinal cross-section which shows the outline | summary of the food dough discharge apparatus 1 which concerns on 2nd embodiment of this invention. It is explanatory drawing by the longitudinal cross-section which shows the outline | summary of the food dough discharge apparatus 1 which concerns on 3rd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Food dough discharge apparatus 2 Outer cylinder part 2-1 Upper outer cylinder part 3 Inner cylinder part 3-1 Inner nozzle 4 Annular space part 5 Rotating body (rotating gear body)
5-1 Stirring body 5-2 Stirring rotating body 5-3 Gear body 6 Lower outer cylinder part 6-1 Outer nozzle holder 6-2 Outer nozzle 8-1 Upper sliding seal part 8-2 Lower sliding seal part 8- 1d Upper seal material 8-1e Spiral groove 8-1f Spiral groove 8-2d Lower seal material 8-2e Spiral groove 8-2f Spiral groove 9 Reservoir

Claims (2)

Each of the opposed sliding surfaces provided in the outer cylinder portion which are relatively rotated and moved is provided with spiral grooves in opposite directions, and the spiral groove rotates the food dough that enters the gap between the sliding surfaces. Accordingly, the food dough discharging apparatus is provided in a direction that acts to push back into the outer cylinder portion. By rotating and rotating the opposite spiral grooves provided on both of the opposing sliding surfaces, the food dough that is supplied into the outer cylindrical portion and enters the gap between the sliding surfaces is pushed back into the outer cylindrical portion. A food dough discharging method characterized in that it acts as much as possible.

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