JP2009268387A - Boiled rice loosening and spreading device in rice ball producing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a boiled rice loosening and spreading device forming puffy and flat boiled rice as if a person loosens and spreads with hands, without pressing and hardening boiled rice mass. <P>SOLUTION: This boiled rice loosening and spreading device includes a roll 8 which rolls on a previously fixed prescribed amount of boiled rice mass (a) for one rice ball, sequentially supplied onto a conveyor 7 and put in a running condition, and forms flat boiled rice b by loosening and spreading the boiled rice mass (a) on the conveyor 7 into a prescribed shape. The roll 8 is composed of a pair of rolls 8A and 8B which are attached with tooth of inclined tooth trace, and arranged on the back and forth of the running direction of the boiled rice mass (a), and is formed in a right twisted helical gear-like form and a left twisted helical gear-like form where the tooth trace directions of the rolls 8A and 8B attached with tooth are different from each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  This invention is, for example, a rice ball manufacturing apparatus that forms rice balls that are made by flat-boiled cooked rice and rice balls wrapped with rice cakes, etc. In order to wrap the above-mentioned tools, a predetermined amount of cooked rice cake is unwound and spread to make flat rice It relates to a rice cracker.

  In recent years, when manufacturing rice balls sold in onigiri sales sections such as convenience stores and supermarkets, rice ball manufacturing equipment using a molded disk is mainly used to form rice balls. Each related machine maker of rice ball manufacturing equipment also needs to configure the rice ball manufacturing equipment itself in order to meet the demand for producing rice balls with a good texture, and without pressing and hardening the rice balls. At present, studies are being made on how to spread and spread the rice into a smooth and flat rice.

  2. Description of the Related Art Conventionally, as a rice cracker roll in a rice ball manufacturing apparatus, one for moderately cracking cooked rice is known. The cooked rice unrolling roll has a substantially cylindrical main body arranged to squeeze the cooked rice fed on the feeding conveyor, and has a loosening wall that is twisted in a substantially spiral shape on the outer peripheral surface of the cylindrical main body. , A notch is disposed in the loosening wall. The notches provided on the outer peripheral surface of the cylindrical main body are juxtaposed along the length direction of the cylindrical main body, and a rice rice pushing groove is provided on the outer peripheral surface of the cylindrical main body (for example, see Patent Document 1). ).

  As a cooked rice smoothing device, there is known a device that prevents the rice grains on the surface of the plate-shaped cooked rice lump from being crushed when the cooked rice is pressed with a smoothing roller to form a plate. In the cooked rice smoothing device, when the cooked rice conveyed by the conveyor is pressed by a smoothing roller having a large number of convex portions on the peripheral surface, the rice grains pressed by the convex portions of the roller on the lump surface of the cooked rice in contact with the roller are The rice grains on the surface of the plate-shaped cooked rice lump are not crushed and do not become sticky like paste, and do not impair the texture (for example, , See Patent Document 2).

There is also known a rice leveling apparatus that forms, for example, bento box-containing rice, etc., from the cooked rice that has been unraveled by a cooked rice molding machine and formed into a plate shape. The rice-equalizing apparatus includes a forming roll for forming a plate-shaped body having a uniform thickness by expanding the plate-shaped rice that has been unrolled by a rice-forming machine, shaped into a plate-like body, and carried out in both directions. The surface of the forming roll is formed with a plurality of spiral spiral grooves in opposite directions on the left and right sides, a protruding spiral is formed at the boundary of the multiple spiral spiral groove, and the multiple spiral spiral groove is formed into an arc-shaped groove. (For example, refer to Patent Document 3).
Japanese Patent No. 3376336 JP 2000-31563 A Japanese Patent No. 2573713

  By the way, the present applicant developed a rice ball manufacturing apparatus and applied for a patent earlier (see, for example, Japanese Patent Application No. 2007-236200). In the rice ball manufacturing apparatus, the unfolding device is a rolling state for forming a running rice lump supplied on the supply conveyor into a flat rice that has been unrolled into a predetermined shape. It is comprised from the roller and the roller of the rolling state for forming the vertical groove-shaped tool mounting part which is arrange | positioned in the downstream of a roller and is flat rice. In the above rice ball manufacturing apparatus, two rice forming rollers are arranged in the front and rear direction, and the two rolls have spur-shaped tooth traces, and the cooked rice lump is flattened by the rolls. Molded into cooked rice. At this time, it is one of the elements that the finished rice balls can be finished in a fluffy way, so that the rolls will not be pressed and hardened by the roll, and the rice balls will be spread and spread into flat rice in a plump state It has become. Moreover, the roll which forms a tool mounting part has a function which forms a groove-shaped tool mounting part in the center of flat cooked rice. The tool placement portion in the cooked rice is shaped like a groove so that the tool can be placed easily. The grooved cooked rice with the equipment mounting part is conveyed from the supply conveyor to the receiving plate installed adjacent to the end of the supply conveyor by the operation of the transfer member, and then the grooved cooked rice is transferred from above the receiving plate. It is configured to be conveyed to the tool supply station by the operation of the member.

  An object of the present invention is to solve the above-mentioned problems, and is preferable when applied to a rice ball manufacturing apparatus that manufactures rice balls as a plump. Unroll and spread the rice lump into a predetermined shape of flat rice without hardening it, and then form a platen on the flat rice, and then umeboshi, koji, kelp, bonito, etc. For making rice balls with a simple shape in a simple shape, so as to produce a rice ball with a texture that feels as if it was held by a person without wrapping the ingredients and hardening them with a mold. The present invention is to provide a rice cracking and spreading device that can be formed into a flat cooked rice that is not pressed and hardened by the toothed roll.

This invention rolls on a predetermined predetermined amount of rice balls that are sequentially supplied on the conveyor and are in a running state, and unrolls and spreads the rice mass on the conveyor into a predetermined shape. In a rice cracker and spreader comprising a roll that forms a flat cooked rice,
The roll is composed of a pair of toothed rolls with inclined tooth traces disposed before and after the running direction of the cooked rice lump, and the right twisted helical gears having different tooth trace directions of the toothed roll The present invention relates to a cooked rice spreader characterized in that the left-handed twist is formed in a helical gear-shaped inclined tooth.

  In addition, the roll includes a driven connecting shaft protruding from one end surface to transmit rotation to the roll.

  Further, on the surface of the flat cooked rice that is unrolled from the pair of toothed rolls, teeth formed by the inclined teeth of the right-handed helical gear shape and the left-handed twisted helical gear shape are formed. A lattice-like groove is formed as a locus of streaks.

  Further, the inclined tooth provided on the roll has an isosceles triangle shape, that is, an isosceles triangle shape, and both tooth surfaces forming the tooth shape are formed on flat surfaces extending straight.

  Moreover, this cooked rice spreading and spreading device is a fixed quantity cooked rice feeding device that measures the cooked rice and supplies a predetermined amount of the cooked rice lump, a tool supply station for placing a given tool on the flat cooked rice that has been unwound and spread, A rice rice folding device that wraps and wraps the tool-mounted cooked rice on which the tool is placed while wrapping the tool with the cooked rice, a molding apparatus that forms the cooked rice into a rice ball having a predetermined shape with a molding die, and the cooked rice with the tool The rice balls are applied to a rice ball manufacturing apparatus composed of a delivery device that carries out the rice balls that have been completed by molding the rice balls. Furthermore, the tool supply station is constituted by a rotary table or a conveyor.

  Since this rice cracker is configured as described above, the rice balls can be molded into a flat rice with the rice rice wrapped in the rice balls without the rice balls being pushed and hardened. ， Because the pre-process prior to the onigiri forming process is performed smoothly, it becomes easier to produce rice balls with a plump feeling in the subsequent forming process. In other words, this cooked rice spreader spreads the left and right twists in which a pair of teeth streaks are reversed by a helical gear roll into a flat cooked rice. Without being stiffened in a grid-like groove, which is the locus of the tooth traces, it is molded plumply, a tool placement part is formed on the flat cooked rice, and sent to the tool supply station. Predetermined tools can be easily placed on the flat cooked rice, the work of supplying the cooked rice becomes easier, and the burden on the worker can be reduced. The texture becomes good.

  Hereinafter, with reference to the drawings, an embodiment of a rice ball manufacturing apparatus provided with a rice cracker and spreader according to the present invention will be described. This cooked rice spreader is generally an improved rice cooker in the rice ball manufacturing apparatus disclosed in Japanese Patent Application No. 2007-236200 filed earlier by the present applicant. The spreader includes a conveyor-type rice ball manufacturing apparatus that uses a belt conveyor to convey the cooked rice shown in FIG. 1, and a rotary table-type rice ball manufacturing apparatus that uses a rotary table to convey the cooked rice shown in FIG. It can be applied to. In addition, in the case of a rice ball manufacturing apparatus using a conventional molding disk, when the shape of the rice ball was changed, the entire molding disk was replaced when the mold was changed. The above-mentioned rice ball manufacturing apparatus to which the apparatus can be applied is a molding apparatus that uses a plurality of pairs of molds, and when the shape of the rice balls is changed, it can be handled by replacing only the mold. 、 Replacement of onigiri molds is simpler than conventional ones, making it possible to easily change the shape of rice balls, and for onigiri manufacturing plants that require the production of small variety of rice balls. This is a great advantage because it allows a significant cost reduction in terms of work space and cost.

  As shown in FIG. 1 or FIG. 2, the above rice ball manufacturing apparatus is generally applicable to the one disclosed in Japanese Patent Application No. 2007-236200, except for the rice cracking and spreading apparatus 2. The fixed-quantity cooked rice supply apparatus 1 which measures the cooked rice accommodated in 42, and supplies the predetermined amount of cooked rice a on the supply conveyor 7, The predetermined tool c is mounted on the spread flat cooked rice b by human hand. Ingredient supply stations 3B, 3R (generally called 3), rice-rice folding apparatus 4B, 4R (generally called 4), which folds and wraps the ingredient-carrying rice d on which ingredient c is placed while wrapping ingredient c with the cooked rice, molding conveyor 17 The forming device 5 for forming the rice balls e with the ingredients into the rice balls f having a predetermined shape with the molding die 12 and the delivery device comprising the delivery conveyor 28 for carrying out the rice balls f formed by forming the rice grains e with the ingredients. Is special Are those that can be used those disclosed in JP 2007-236200, here, it will be discussed an outline.

  A first example of this rice ball manufacturing apparatus will be described with reference to FIG. This rice ball manufacturing apparatus has a fixed-quantity cooked rice supply device 1, a cooked rice spreader device 2, an ingredient supply station 3B, a cooked rice folding device 4B, and a molding device 5. The fixed-quantity cooked rice supply apparatus 1 supplies a predetermined amount of cooked rice lump a for a rice ball f in sequence onto the supply conveyor 7. Rolled rice roll unrolling device 2 is a roll in a rolling state for forming a cooked cooked rice cake a supplied on a supply conveyor 7 into a flat cooked rice b that has been spread into a predetermined shape. 8 and a roll 9 in a rolling state for forming a vertical groove-shaped tool placement portion g on a flat boiled rice b which is arranged downstream of the roll 8. Two rolls 8 (generic name) are arranged before and after the moving direction of the cooked rice lump a, and the rolled rice lump a is not softened by the two rolls 8A and 8B to the flat boiled rice b. It is surely molded.

  As shown in FIGS. 3 to 7, the cooked rice spreader 2 which is a feature of the present invention is a flat type equipped with a tool mounting portion g that is spread while unrolling the cooked rice a on the supply conveyor 7. It is comprised from the rolls 8 and 9 shape | molded in the boiled rice b, and has the characteristics in the structure of the roll 8 especially. The roll 8 is composed of a pair of toothed rolls 8A and 8B having inclined tooth traces disposed before and after the running direction of the cooked rice lump a, and the toothed rolls 8A and 8B have different tooth trace directions. It is formed in a gear shape. As shown in FIG. 4, the unrolled toothed roll 8 </ b> A is disposed in front of the cooked rice lump a in the traveling direction, and the left twist is formed in a helical gear shape. Further, as shown in FIG. 5, the unrolled toothed roll 8 </ b> B is disposed behind the cooked rice lump a in the traveling direction, and the right twist is formed in a helical gear shape. The toothed rolls 8A and 8B are provided with hollow driven connecting shafts 13 and 14 protruding from one end surface. Further, on the surface of the flat cooked rice b unrolled from the pair of toothed rolls 8A and 8B, as shown in FIG. 6, the right-handed torsion is a helical gear shape and the left-handed torsion is a helical gear shape. A lattice-like groove 22 extending obliquely as a locus of the tooth trace is formed by the teeth 15 and 16. In the toothed rolls 8A and 8B, the tooth profile 23 has a substantially isosceles triangle shape, that is, an isosceles triangle shape, and the tooth surfaces 29 on both sides of the tooth profile 23 are twisted and extended in a straight shape on a straight flat surface. . Therefore, when the pair of toothed rolls 8A and 8B unravel and spread the cooked rice lump a, the rice grains b do not adhere to the tooth surface 29, and the lattice-like grooves 22 are formed on the surface of the cooked rice b that is separated smoothly. Can be formed.

  The roll 9 has a function of forming a groove-shaped tool placement portion g at the center of the flat cooked rice b. Since the tool placement part g has a shape of a groove crossing the center, the tool c is easily placed. As shown in FIG. 1, the flat cooked rice b provided with the ingredient placement portion g is conveyed from the supply conveyor 7 to the receiving plate 33 installed adjacent to the end of the supply conveyor 7 by the operation of the transfer member 24. Then, the flat cooked rice b is transported from the receiving plate 33 to the tool supply conveyor 10 by the operation of the transfer member 25. The tool supply conveyor 10 is provided with a tool supply station 3B. The flat cooked rice b sent to the tool supply station 3B is placed on a tool mounting portion g of the flat cooked rice b by a manual operation at the tool supply station 3B.

  In the ingredient supply station 3, the ingredient placing rice d in which the ingredient c is placed on the ingredient placing part g of the flat cooked rice b is carried by the ingredient supply conveyor 10, and the tip of the ingredient supply conveyor 10 is fed by the rice sensor 32. The passage is detected. According to the detection signal of the tool-equipped cooked rice d by the cooked rice sensor 32, the tool-mounted cooked rice d wraps the tool c with the tool-equipped cooked rice d by the preforming device 6 comprising the pre-molding mold 30 and the preformed mold 31. It is preformed into a predetermined shape that is easy. First, after the tool-equipped cooked rice d on the tool feed conveyor 10 passes, the pre-molding mold 30 descends toward the rear surface of the tool-placed cooked rice d on the tool-mounted conveyor 10, The tool-equipped cooked rice d is pushed against the pre-molded die 31 while being fed onto the front shutter 21. The pre-molding mold 30 is moved up and down with respect to the cooked rice d through a lever by the operation of an air cylinder, for example, and the mold 31 after pre-molding through a slide guide by the operation of another air cylinder. It moves to and moves the mounted rice d. By pre-molding the tool-carrying cooked rice d, the periphery of the tool-carrying cooked rice d is preformed into a predetermined shape in which the tool c can be easily folded.

  Next, a second example of this rice ball manufacturing apparatus will be described with reference to FIG. This rice ball manufacturing apparatus mainly has a fixed-quantity cooked rice supply device 1, a cooked rice spreader device 2, an ingredient supply station 3R, a cooked rice folding device 4R, and a molding device 5. Further, in the second example, for mass production of rice balls f, the cooked rice spreader 2, the ingredient supply station 3 R, the cooked rice folding device 4 R, and the molding device 5 are configured in two rows. Of course, the number of rows may be one or three or more according to the manufacturing efficiency of the rice balls f. In the second example, the fixed-quantity cooked rice supply device 1 and the molding device 5 are substantially the same as those in the first example, and therefore, redundant description thereof is omitted. In the second example, the rotary table 11 installed on the main body frame 37 is used. In addition to the rotary table 11, a pair of molding conveyors 18 and 19 are assembled on the main body frame 37. The conveyor 43 is installed. The rotary table 11 is provided with a tool supply station 3R, a preforming device 6, and a rice rice folding device 4R.

  The fixed-quantity cooked rice supply apparatus 1 feeds a predetermined amount of cooked rice lump a for one rice ball f in two rows to the supply conveyor 7, and for that purpose, the fixed-quantity cooked rice supply apparatus 1, the supply conveyor 7, A conveyor 39 is incorporated between the two. The cooked rice chunk a from the fixed-quantity cooked rice feeder 1 is supplied onto the conveyor 39, and the two adjacent cooked rice chunks a on the conveyor 39 are sequentially fed from the conveyor 39 together onto the feed conveyor 7 together. The cooked rice cake a transferred to the supply conveyor 7 is unrolled into a predetermined shape by the cooked rice spreader 2 installed on the supply conveyor 7. The rice cracking and spreading device 2 is in a rolling state in which the running rice chunks a placed in two rows on the supply conveyor 7 are unrolled into a predetermined shape and spread to form a flat cooked rice b. A pair of rolls 8 and a pair of rolls in a rolling state on the flat cooked rice b that has been unrolled to form a vertical groove-shaped tool placement portion g disposed downstream of these rolls 8. 9 is composed. The two rows of flat cooked rice b unwound and spread by the cooked rice spreader 2 are fed together from the supply conveyor 7 onto the rotary table 11 installed on the main body frame 37 by the transfer member 24.

  The rotary table 11 is provided with a tool supply station 3R, a pre-forming device 6, and a cooked rice folding device 4R. The rotary table 11 receives and carries two pieces of cooked rice at a time, so it rotates intermittently. Yes. To the flat cooked rice b transported to the tool supply station 3R, a predetermined tool c determined in advance by the manual operation of the person is supplied to the tool placing portion g to form a tool-equipped cooked rice d. Two adjacent ingredient-equipped cooked rice d is preformed by the preforming device 6, and then the ingredient c is wrapped together with the ingredient-equipped rice d on the rotary table 11 by the rice rice folding apparatus 4R. e is formed. The preforming device 6 includes a pair of preforming dies 20 in which a pair of bottomed recesses 36 for receiving the tool-mounted rice is formed. The pre-molding die 20 constitutes a gathering die 41 in which one pre-molding die 20 holds the ingredient-mounted rice d on the rotary table 11 in the bottomed recess 36 and moves outward in the radial direction of the rotary table 11, The other preforming mold 20 constitutes a folding mold 40 that receives the tool-mounted cooked rice d moved by the gathering mold 41 at the recess 36. When the tool-equipped cooked rice d is moved toward the folding mold 40 by the gathering die 41, the tool-carrying cooked rice d is preformed into a predetermined shape that can be easily wrapped with the tool-equipped cooked rice d. The cooked rice e is transferred from the rotary table 11 to the forming conveyors 18 and 19 by the transfer members 26 and 27. Next, the cooked rice e is formed by the forming mold 12 provided on the forming conveyors 18 and 19 and formed into a rice ball f. The rice balls f on the forming conveyor 18 are sent to the delivery conveyor 28, and the rice balls f on the forming conveyor 19 are transferred to the conveyor 43 by the transfer member 34, and then transferred from the conveyor 43 to the delivery conveyor 28 by the transfer member 35. It is sent out.

  The rice cracker and spreader according to the present invention is preferably applied to, for example, a rice ball manufacturing apparatus for producing a rice ball with a good texture by forming it into a plump state without pressing and hardening the rice balls.

It is a schematic plan view which shows the 1st example with which the tool supply station and the preforming die were provided on the conveyor about the rice ball manufacturing apparatus incorporating the cooked rice spreader by this invention. It is a schematic plan view which shows the 2nd example with which the tool supply station and the preforming die were provided on the rotary table about the rice ball manufacturing apparatus incorporating the cooked rice spreader apparatus by this invention. It is a front view which shows the outline of the rice cracking and spreading apparatus by this invention. The left-handed twist which is one of the pair of rolls in the cooked rice spreader according to the present invention is a helical gear-shaped roll, (a) is a side view, and (b) is a front view. The right twist which is the other roll of the pair of rolls in the cooked rice spreader according to the present invention is a helical gear-shaped roll, (a) is a side view and (b) is a front view. It is a perspective view which shows the flat cooked rice which was unwound and spread by this cooked rice spreader. It is a perspective view which shows a pair of unrolling toothed roll and a tool mounting part forming roll in this cooked rice unfolding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed rice supply apparatus 2 Rice unraveling apparatus 3,3B, 3R Tool supply station 4,4B, 4R Rice rice folding apparatus 5 Forming apparatus 6 Pre-forming apparatus 7 Supply conveyor 8 Roll 8A, 8B Geared roll 10 Tool supply conveyor 11 Rotary table 12 Mold 13, 14 Driven connecting shaft 15, 16 Inclined teeth 22 Lattice groove 23 Tooth profile 28 Feeding conveyor 29 Tooth surface a Cooked rice b Flat cooked rice c Tools d Tools placed rice e Cooked rice f Rice balls g Tools mounted Place

Claims (6)

Rolls on a predetermined amount of rice balls that are supplied on the conveyor in sequence and are in a running state, rolls the rice mass on the conveyor into a predetermined shape, and spreads the rice In a rice cracker and spreader comprising a roll forming,
The roll is composed of a pair of toothed rolls with inclined tooth traces disposed before and after the running direction of the cooked rice lump, and the right twisted helical gears having different tooth trace directions of the toothed roll A rice cracker and spreader characterized in that the left-handed twist is formed in a helical gear-shaped inclined tooth. 2. The cooked rice spreader according to claim 1, wherein the roll includes a driven connecting shaft protruding from one end face to transmit rotation to the roll. On the surface of the flat cooked rice unrolled from a pair of toothed rolls, the right twist is a lattice-like shape formed by the inclined teeth of a helical gear shape and the left twisted helical gear shape. A device for spreading and spreading cooked rice according to claim 1 or 2, wherein a groove is formed. The inclined tooth provided on the roll has an isosceles triangular shape, and both tooth surfaces forming the tooth shape are formed on flat surfaces extending straight. The rice cracker and spreader according to any one of the above. A fixed-quantity cooked rice supply device that measures a cooked rice and supplies a predetermined amount of the cooked rice chunk, a tool supply station for placing a predetermined tool on the flat rice that has been unfolded, and a tool-mounted cooked rice on which the tool is placed A rice rice folding device that wraps the rice while wrapping the rice with the cooked rice, a forming device for forming the rice with rice into a predetermined shape with a mold, and a rice ball that has been formed by forming the rice with rice 5. The cooked rice spreader apparatus according to claim 1, wherein the cooked rice spreader is applied to a rice ball manufacturing apparatus including a feeding device that spreads the cooked rice cake into the flat cooked rice. 6. The cooked rice spreader according to claim 5, wherein the ingredient supply station is constituted by a rotary table or a conveyor.

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