JP4359129B2 - Packaging rice ball manufacturing method and apparatus - Google Patents

Description

  The present invention relates to a method and apparatus for manufacturing a packaged rice ball in which ingredients are supplied to the inside of a metered shrimp and then the whole shaver is covered with a laver-containing sheet member.

Conventionally, various automatic rice ball manufacturing apparatuses have been proposed. Among these, for example, a shaver is supplied into a rice ball forming hole arranged at a predetermined interval of a turntable that rotates intermittently, and a tool hole that opens upward is formed with respect to a substantially central portion of the shaver in the rice ball forming hole. After filling the material hole with the material, the upper edge of the material hole is closed by bringing the peripheral edge of the material hole toward the center. Then, the rice balls are wrapped while being folded with a laver-containing sheet member, and then the overlapping portions of the sheet members after packaging are heat-pressed and fixed. Such a process is performed as a series of operations. In addition, as a constant weight supply device for the shari, a constant amount of a slightly smaller amount than the set value is always supplied from the main weighing unit, and a small amount of difference in weight between the set value and the fixed amount is replenished from the auxiliary weighing unit There has been proposed a technique that achieves this structure (see Patent Document 1). Furthermore, as an automatic food sprinkling device, a technique has been proposed in which salt, sesame and other sprinkled foods are continuously sprayed on the surface of rice balls, etc., adjusted to a fixed amount and a constant distribution density (patent) Reference 2).
Japanese Patent No. 3088718 JP 2002-330713 A

  However, in contrast to the conventional automatic rice ball manufacturing apparatus described above, there is no one that incorporates a constant weight feeding apparatus and a food sprinkling apparatus as a part of the work process, and these devices are connected to the automatic rice ball manufacturing apparatus. Because of this, the transport technology for shaving was not yet satisfactory. In particular, no technical improvements have been made to the supply part to the turntable and the transport mechanism itself from the automatic sprinkler to the packaging part. In addition, the conventional shear metering device is composed of a transport mechanism composed of belts, rollers, etc., and a resistance element that gives a reaction force to the transport, so when the shear passes through that part, The density of the shear was averaged by the interaction of the mechanism and friction of the resistance element, slip, etc., and the volume was divided by volume measurement, but the volume measurement by density adjustment based on such friction and slip was the basic principle. In the method, the measurement accuracy is limited due to the difficulty of control.

  Therefore, the present invention was created in view of the existing circumstances as described above, and a shaving supply process, a tool hole forming process, a material filling process, a shaving closing process, and an automatic packaging process for laver-containing sheet members. Incorporating the shrimp weighing process and the sprinkling process for automatic food sprinkling as a series of processes to the conventional automatic packaging rice ball manufacturing method and equipment consisting of the above, etc., improved workability and improved quality A rice ball production method and apparatus that can produce rice balls and can be divided in a quantitative manner by directly measuring the weight of the rice balls, thereby enabling accurate constant weight supply of the rice balls. The purpose is to do.

In order to achieve the above-mentioned object, in the method of manufacturing a packaged rice ball according to the present invention, a fixed amount of a pre-weighed amount of shari is supplied so as to be smaller than the set value of the shari, and the weight of the shari is measured. A sharp weighing process that calculates the difference from the set value and makes it possible to replenish the shortage ,
Shari supplying step for supplying the rice balls into the rice ball forming holes arranged at predetermined intervals of the turntable that rotates the shari intermittently;
A tool hole forming step for forming a tool hole opened upward with respect to the substantially central part of the shaving in the rice ball forming hole;
Ingredient filling process for pushing and filling the ingredients into the ingredient holes,
Shari closing process of closing the upper opening of the tool hole by bringing the tool hole periphery to the center side,
A spraying process of sprinkling salted foods such as salt and sesame seeds on rice balls;
An automatic packaging process that automatically wraps rice balls while folding them with sheet material containing nori;
In the method of manufacturing a packaged rice ball comprising a sealing step in which the overlapped portion of the sheet member after packaging is fixed by thermocompression bonding ,
In the shear measurement step, the shear is supplied into one mass of the rotary mass intermittently rotating divided into a plurality of masses along the rotation direction, the weight of the shear is measured by the rotary mass, and the difference from the set value is calculated. The shortage can be replenished .

Further, in the packaging rice ball manufacturing apparatus according to the present invention, a main weighing unit that supplies a fixed amount of a pre-weighed amount of shaving so as to be smaller than a set value of the shaving;
A measuring unit for measuring the weight of the fixed shaving;
And rice set value, to calculate the weight difference between the quantitative rice measured by the measurement unit, and an auxiliary metering unit to replenish the rice in accordance with the difference,
A shari supply unit that feeds into the rice ball forming holes arranged at predetermined intervals of the turntable that rotates the shari intermittently;
A tool hole forming part for forming a tool hole opened upward with respect to a substantially central part of the shaving in the rice ball forming hole;
An ingredient filling portion for pushing and filling the ingredient into the ingredient hole;
Shari closing means for closing the upper opening portion of the tool hole by bringing the tool hole periphery to the center side,
A sprinkling device for spraying salted foods such as salt and sesame seeds on rice balls,
An automatic packaging mechanism that automatically wraps rice balls while folding them with nori-containing sheet members;
In a packaging rice ball manufacturing apparatus consisting of a seal portion that fixes the overlapped portion of the sheet member after packaging by thermocompression bonding ,
The measuring unit is configured to measure the weight of a quantitative shear that is supplied into one mass of a rotary mass that rotates intermittently and is divided into a plurality of masses along a rotation direction .

  In addition, the main weighing unit and the auxiliary weighing unit are provided with a roller conveyer in which opposed roller rows are arranged vertically so as to convey a predetermined amount of the shear and a shutter mechanism for dividing the shear. it can.

  And the main measurement part can measure the weight of the shaving in a rotary mass with the load cell connected with the rotating shaft of the rotary mass.

  Further, the rotary mass extends in the radial direction at intervals of 120 degrees, and a cam body having three cam grooves that communicate with each other at the center is mounted on the same axis as the rotary shaft of the rotary mass. The eccentric output shaft can be slidably fitted, and the 360 degree rotation of the eccentric output shaft of the motor can be converted into a 120 degree rotation of the rotary mass.

  Since the present invention is configured as described above, a conventional automatic rice ball manufacturing method comprising a shaving supply process, a tool hole forming process, a tool filling process, a shaving closing process, an automatic packaging process for laver-containing sheet members, and the like. Incorporating a shaving weighing process and a sprinkling process for automatic food sprinkling as a series of processes for the equipment, it is possible to improve workability, produce a rice ball with improved quality, and directly In addition, it is possible to quantitate and divide by the method of measuring the weight of the shari, which makes it possible to supply the shari with an accurate constant weight. In particular, by adopting a method that directly measures the weight, it achieves high accuracy with an error of ± 2% or less, and enables accurate quantitative division by intermittent operation of the rotary mass. It is possible to supply a constant weight of the shear that suppresses a decrease in yield due to an increase / decrease error amount of the supply amount that occurs when a mechanical disturbance (vibration or the like) is activated with continuous supply.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Reference numeral 1 shown in the figure is an apparatus main body for manufacturing rice balls, and an ingredient v is placed inside a pre-metered shaver P. Is automatically supplied so that the entire formed rice ball W can be automatically packaged so as to be covered with a sheet member Q containing seaweed. As shown in FIG. 2, the apparatus main body 1 includes a shaving measurement process A, a shaving supply process B to the turntable, a tool hole forming process C, a tool filling process D, a tool closing process E, a direction changing process F, a first 1 spraying process G, reversing process H, 2nd spraying process I, automatic packaging process J by laver-containing sheet member Q, sealing process K, label sticking process L, and discharging process M are configured as a series of processes.

That is, as shown in FIGS. 1 to 5, the apparatus main body 1 includes a main weighing unit 11 that supplies a fixed amount of metering that is pre-measured so as to be smaller than the set value of the shear P, and a metered shaft that is rotated in the direction of rotation. Are divided into a plurality of masses via three partition plates 21A at intervals of 120 degrees, for example, and are supplied into one mass where the inner bottom surface of the rotary mass 21 that rotates intermittently at intervals of 120 degrees is embossed. The weight difference between the measurement unit 13 that measures the weight of the shear P in the rotary mass 21 by the load cell 22 provided in the rotary mass 21 and the fixed shear value measured by the shear setting value and the rotary mass 21 is calculated. Onigiri forming holes 3a arranged at predetermined intervals between the auxiliary weighing unit 12 for replenishing the shear P according to the difference and the turntable 3 that rotates the shear P intermittently. Conveyor, and a rice supplying portion 2 provided with a respective push-up device supplies the.
In addition, the shrimp P supplied to the hopper 10 is sent out to a supply conveyor while the shrimp P is loosened by a shredding unraveling mechanism (not shown) using a stirring blade. This supply conveyor is a conveyor for supplying an appropriate amount of the shear P according to the consumption of each weighing unit. This supply conveyor includes a main supply conveyor that supplies the shear P to the main weighing unit 11 and a bypass conveyor that supplies the shear P to the auxiliary weighing unit 12.

  A push rod-shaped tool hole forming device 31 that can be moved up and down to form a tool hole P ′ that opens upward with respect to a substantially central portion of the shaving P in the rice ball forming hole 3a, and a tool in the tool hole P ′. A material filling portion (not shown) that pushes and fills the material v, and a shear closing means 33 that closes the upper opening portion of the tool hole P ′ by bringing the shear P on the periphery of the tool hole toward the center.

Furthermore, after the shaving closing process E, the rice ball W discharged from the rice ball forming hole 3a is rotated about 30 degrees so that one side of the rice ball is directed in the traveling direction, and the sprinkled food h such as salt and sesame rice balls First sprinkler sprinkling device 42 that sprinkles and sprinkles toward one side of W, reversing mechanism 43 that reverses rice ball W from one side to the other side by 180 degrees, and sprinkled food such as salt and sesame and a second sprinkling device 44 for spraying h to the other surface side of the rice ball W.

  In addition, an overlapping portion of the lift mechanism 52 for automatically wrapping the rice ball W with the nori-containing sheet member Q and the automatic turn mechanism 53 including the turntable 53 for wrapping, and the overlapped portion of the nori-containing sheet member Q after packaging is thermocompression bonded. And a sealing portion 61 to be fixed.

  As shown in FIGS. 2 and 3, the main weighing unit 11 and the auxiliary weighing unit 12 divide the roller P and the roller conveyor 14 in which opposing roller rows are vertically arranged so as to convey a specified amount of the beam P. And a shutter mechanism 15 for performing the above operation. As the shutter mechanism 15, in the case of the main measuring unit 11, a rectangular block-shaped pusher plate 15 </ b> A slidable in the horizontal front-rear direction for pushing a predetermined amount of the shear P into one mass of the rotary mass 21 and a fixed receiving portion. In the case of the auxiliary weighing unit 12, the claw-shaped rotary cutter 15B is formed so as to drop a predetermined amount of the shear P toward the shear supply unit 2 in a cut state. That is, the main weighing unit 11 has a weighing / dividing capacity of 2500 pieces per hour, and measures / divides 90% of the target weight in 1.44 seconds, for example. At this time, the effective sectional area of the roller conveyor 14 is about 3000 square millimeters, and 2 g / mm is the reference dimension. Also, in order to reduce the influence of the sharp P quality, that is, viscosity, hardness, temperature, etc., the roller conveyor 14 has its own drive motor at the upper part and the lower metering part as its lower part, and its speed ratio can be varied. It is like that. For example, when “1” is set for general white rice, a non-uniform density distribution such as mixed rice is increased to “1.2” to increase the degree of compression. The shear supply unit is an inverter controlled induction motor, and the shear metering unit is a semi-closed loop control by an AC servo motor.

  As shown in FIGS. 4 and 5, the measuring unit 13 is arranged in the rotary mass 21 according to the amount of change in distortion of the cylindrical load cell 22 connected in parallel with the rotary shaft 24 of the rotary mass 21. The weight of the shaving P is measured. That is, the measuring unit 13 continuously measures the weight of the weighed / divided shear P sequentially sent from the roller conveyor 14 by a weight checker system using a completely sealed load cell 22 made of stainless steel. The mechanical disturbance is removed by measuring the weight while the rotary mass 21 rotating intermittently is stopped. Since the output of the load cell 22 handles a very small signal of 2 mV / V, the removal of the disturbance directly improves the measurement accuracy. The electrical processing uses an amplifier unit and has a resolution of 1/16000. Overall, it is processed in units of 0.2 g.

  Further, the auxiliary weighing unit 12 measures the weight of the shear P measured and divided by the main weighing unit 11 by the measuring unit 13 and calculates a difference from the target value. The difference corresponding to the shortage of the shear P is measured as the target value of the auxiliary weighing unit 12. At this time, the effective sectional area of the roller conveyor 14 is set to about 1000 square millimeters, and 0.7 g / mm is set as a reference dimension. Thus, the measurement resolution is improved by reducing the sectional area. The weight of the rice ball product is the sum of the main weighing value and the auxiliary weighing value, and the error in the product weight is the difference between the target value of the auxiliary weighing and the auxiliary weighing value divided by the target weight of the product. The error of the main weighing unit 11 occupying 90% of the product weight is only a measurement error for actually measuring the measurement result, and can be ignored in practice. For this reason, only the error of the auxiliary weighing unit 12 is obtained, but the error is reduced to 1/10 because the contribution rate to the product weight is 10%.

  As shown in FIGS. 4 to 6, the rotary mass 21 has a disk-like cam body 23 having three cam grooves 23A extending in the radial direction at intervals of 120 degrees and communicating with each other at the center. 21 is mounted coaxially with the rotating shaft 24 of the ball bearing structure having a ball bearing structure rotatably mounted on the cam groove 23A via an arm plate 27 mounted on the output shaft of the drive motor 25. An eccentric output shaft 26 is slidably fitted. That is, the eccentric output shaft 26 in the cam groove 23A rotates 120 degrees while pushing the inner wall of the cam groove 23A, then is released from the pressure, slides along the cam groove 23A, and moves 120 degrees to the adjacent cam groove 23A. After the introduction, the operation of rotating 120 degrees while pushing the inner wall of the cam groove 23A again is repeated (see the locus S of the eccentric output shaft 26 in the in-circle diagram of FIG. 4). In this way, the 360 degree rotation of the eccentric output shaft 26 of the drive motor 25 is converted into a 120 degree rotation of the rotary mass 21.

  In addition, a stopper mechanism 28 is provided for positioning and holding the cam body 23 itself while the load cell 22 that measures the weight of the shear P in the rotary mass 21 is operating at the intermittent rotation position of the cam body 23. ing. The stopper mechanism 28 has a substantially U-shaped pressing lever plate 28A disposed on the back side of the cam body 23 so as to be coaxial with the rotary shaft 24 and swingable in the front-rear direction. When one end of the arm plate 27 comes into contact with the pressing operation portion 28B projecting forward on the lower side of 28A, the upper side of the pressing lever plate 28A is tilted forward by the lever operation, and the pressing lever plate 28A A stopper pin 28C provided on the upper side via a coil spring 28E engages with an engagement hole 28D formed on the back surface of the cam body 23, thereby positioning and holding the cam body 23 itself. When the arm plate 27 is rotated from this position, the pressing operation portion 28B is released, the upper side of the pressing lever plate 28A is tilted backward by the lever operation, and the upper side of the pressing lever plate 28A is interposed via the coil spring 28E. The provided stopper pin 28C is removed from the engagement hole 28D formed on the back surface of the cam body 23, and the rotation of the cam body 23 is allowed.

  As a specific configuration of the shaving closing means 33, a rice ball is formed so that a shank rising portion P ″ at the periphery of the tool hole formed at the same time as the tool hole P ′ is projected from the rice ball forming hole 3a of the turntable 3 that rotates intermittently. Push-up means 37 having a cradle that can be moved up and down via a piston in the molding hole 3a, and a plurality of claw portions 35 that can be expanded or closed so as to bring the protruded raised portion P ″ toward the center. Shaft closing means 33 provided with each pressing portion 36 that can be moved up and down provided in the center of the claw portion 35 so as to push the shaving P downward.

  That is, as shown in FIGS. 7 and 8, the shrimp closing means 33 is formed with an elevating arm 38C in which three support arms 38B project outwardly at equal intervals on the lower surface of the connector block 38A. In the shaft hole provided so as to penetrate the connector block 38A and the center portion of each support arm 38B in the vertical direction, a columnar pressing portion 36 that can be moved up and down to push the shredded P downward. Is interpolated. Engaging concave grooves are formed on both sides of the connector block 38A, and the forked bifurcated portions of the mounting arm 38D of the elevating drive mechanism are engaged with both engaging concave portions and are detachably attached by screws.

  At the center of the tip of each support arm 38B of the lifting arm 38C, a clamping groove is opened and cut in the forward and vertical directions. In each clamping groove, the upper end of the link plate 38E is clamped and pivotally supported by a pin. In addition, the lower end of the link plate 38E is connected to one end side of each of the three claw portions 35 for bringing the shear P of the peripheral edge of the tool hole P ′ toward the center by a pin, and these claw portions 35 are connected to each other. The pins are connected to each other by pins via a base plate 38F arranged to pass through the pressing portion 36 below the support arm 38B. At this time, the three claw portions 35 are formed in the shape of a thin plate so that the sharp rising portion P ″ at the periphery of the tool hole P ′ can be brought close to the center side from three sides.

  Further, as a specific configuration of the direction changing mechanism 41, the horizontal turning arm 41A is configured to be able to advance or retreat to the rear side of the rice ball protruding upward from the rice ball forming hole 3a of the turntable 3 that rotates intermittently. A rectangular block-shaped pressing operation body 41 </ b> B is provided. Then, a bending portion 41C is formed on one end side of the pressing operation body 41B so as to abut against the corner portion W ′ of the rice ball W so as to escape and rotate toward the pressing operation body 41B side. Thus, a triangular recess-like introduction recess 41D that is continuous with the bending portion 41C is formed so that the corner W ′ of the rice ball W is introduced to the center of the pressing operation body 41B along the traveling direction.

  The direction changing mechanism 41 rotates about 30 degrees so that the two sides of the rice ball W are directed in the traveling direction for the subsequent packaging process J when the automatic sprinkler 42 is not provided and the reversing mechanism 43 is not provided. It is removable so that it can be made. Therefore, when the two automatic sprinkling devices 42 and 44 and the reversing mechanism unit 43 are installed as in the present embodiment, the direction changing mechanism unit 41 is removed.

  Further, as a specific configuration of the sprinkling devices 42 and 44, as shown in FIGS. 10 and 11, an opening / closing lid containing salt as a sprinkled food h on the upper surface of one end side of a rectangular plate-like lower fixing plate 72 An attached hopper 71 is installed, and a plurality of spray holes s are formed in the bottom wall 73 and the lower fixing plate 72 of the hopper 71 in the vertical direction in a non-communication state. A rectangular formed by passing a plurality of spraying holes s between the bottom wall 73 of the hopper 71 and the lower fixing plate 72 so as to communicate with any one of the spraying holes s of the bottom wall 73 and the lower fixing plate 72. A thin plate-like intermediate slide plate 74 is interposed.

  Further, the lower fixing plate 72 is disposed on the lower side of the lower fixing plate 72 from a driving source 75 such as a single-phase reversible motor through a gear head 91, a signal cam 93 opposed to the photomicrosensor 92, a driving coupling 94, and the like. An eccentric cam 77 is attached to the front end of the drive shaft 76 arranged directly on the surface 72 via a bearing 95 and a seal case 96, and one end of a plate-like link arm 78 is rotated around one end of the intermediate slide plate 74. A drive crank portion 79 for allowing the intermediate slide plate 74 to reciprocally slide on the lower fixed plate 72 by being pivotally mounted and slidably linked to the upper portion of the eccentric cam 77. Is configured.

  In this way, the link arm 78 is swung via the eccentric cam 77 to reciprocate the intermediate slide plate 74, so that the spray holes s provided in the intermediate slide plate 74 are spread out in the lower fixed plate 72. The sprinkled food h in the spray hole s of the intermediate slide plate 74 falls through the spray hole s of the lower fixed plate 72 and falls onto the rice ball W surface located below.

  One end of a plate spring 81 is fixed to the lower fixing plate 72, and a hopper vibration shaft 80 for vibrating the lower fixing plate 72 is connected to a substantially middle portion of the plate spring 81, and the other end of the plate spring 81 is connected. A hopper vibration means 82 is provided which allows the entire hopper 71 to vibrate via the hopper vibration shaft 80 by abutting the portion with a protrusion 77A provided on the peripheral surface of the eccentric cam 77 and repeatedly bending or returning. ing. At this time, at a position where the spray hole s of the intermediate slide plate 74 coincides with the spray hole s of the lower fixed plate 72, the protrusion 77A is detached from the plate spring 81, and the plate spring 81 itself returns to the hopper vibration. The entire hopper 71 is set to vibrate via the shaft 80. A contact piece 72a that is bent inwardly in a U-shape is extended to a portion of the lower fixing plate 72 that faces the hopper vibration shaft 80, and the tip of the hopper vibration shaft 80 abuts against the contact piece 72a. ing.

  Thus, the protrusion 77A of the rotating eccentric cam 77 repeats and hooks the other end of the leaf spring 81, whereby the hopper vibration shaft 80 vibrates the lower fixing plate 72, and the entire hopper 71 can vibrate. The sprinkled food h clogged in the spray hole s of the intermediate slide plate 74 is forcibly shaken downward from the spray hole s of the lower fixed plate 72.

  Further, as a specific configuration of the reversing mechanism unit 43, as shown in FIG. 12, a rotation shaft linked to a drive shaft 86 of a drive source 85 installed on one side of the transport conveyor 83 is connected to the transport conveyor 83. Three reversing plates 84 having a substantially E-shape, which are arranged so as to be orthogonal to the upper side and rotate intermittently by 180 degrees on the front end side of the rotating shaft, are fixed to face each other at substantially the same interval as between the conveyors 83. Configured.

  Furthermore, as a specific configuration of the automatic packaging mechanism 51, as shown in FIGS. 13 to 15, the base plate 63 is adjacent to the intermittently rotating packaging turntable 53 having a plurality of rice ball insertion holes R. On the other hand, a lift mechanism 52 is arranged. This lift mechanism 52 has an embossed surface attached to the upper end of the lifting rod 54 by a piston mechanism 56 that allows the lifting rod 54 disposed on the front end side of the conveyor 83 to be lifted with respect to the base plate 63. A triangular mounting table 57 is movable up and down. As shown by the arrows in FIG. 15, the mounting table 57 is arranged so that one side of the triangle faces the traveling direction, and the front left and right corners each have a substantially trapezoidal shape with a small cross-sectional shape. The shape-retaining rod member 58 is constantly biased so as to protrude upward from the surface of the mounting table 57 via a spring coil spring 55 wound around the lifting rod 54. Further, the trapezoidal slope side of the shape-retaining rod member 58 is arranged close to the mounting table 57 so that each side of the mounting table 57 is substantially flush with the other side of the trapezoid bottom surface. Yes.

  Then, as shown in FIGS. 13 and 16, the rice ball W on the mounting table 57 is supplied to the vicinity of the packaging turntable 53 in a state in which the seaweed-containing sheet member Q supplied and arranged by the conveyor 64 is rolled up. Insertion block 59 having a triangular insertion portion 59A and a rice ball W in the insertion block 59, and a sheet member Q containing seaweed is wound on the lower surface of the rice ball W. Each of the transport blocks 60 includes a triangular groove portion 60A having a front opening that is slidable back and forth on the upper surface of the insertion block 59 so as to be transported to the R side.

  On the upper side of the insertion block 59, a pressing member 59B for pressing the rice ball W inserted into the insertion portion 59A to keep it in a triangular shape is disposed so as to be able to move up and down. On the insertion side of the shaping rod member 58, a long groove portion 59C for extending the extension of the seaweed-containing sheet member Q formed when folded is formed to extend. The shape retaining rod member 58 is supplied to the insertion portion 59A of the insertion block 59 while retaining the folded state of the seaweed-containing sheet member Q with respect to one side of the rice ball W on the mounting table 57 that moves upward. When the mounting table 57 at the upper end of the lifting / lowering rod 54 rises to the insertion block 59, the shape retaining rod member 58 itself does not interfere with the sliding movement of the transport block 60, so that it is below the transport block 59. The shape-retaining rod member 58 is latched and held.

  Further, as shown in FIG. 17, the specific configuration of the seal portion 61 includes a folding baffle plate 101 installed on the packaging turntable 53 and a rocking (not shown) disposed on the upper surface side of the packaging turntable 53. A bifurcated arm-like folding lever piece 102 that can be advanced or retracted via a moving mechanism, and a heat press device 103 that crimps and fixes the overlapping portion of the folded seaweed-containing sheet member Q with a heating rod. ing. Thus, the corner portions of the seaweed-containing sheet member Q in a state where the rice ball W conveyed into the rice ball insertion hole R is partly protruded and partly protrudes upward are brought inward by the folding baffle plate 101 and the folding lever piece 10. After folding, it is fixed by crimping with the heating rod of the heat press apparatus 103.

  Next, an example of use and operation of the best mode configured as described above will be described. The shrimp P supplied to the hopper is supplied while loosening the shrimp P by the shredding mechanism of the shrimp P by the stirring blades. Send to conveyor. At this time, an appropriate amount of the shear P is supplied in accordance with the amount of consumption of each measuring unit.

  As shown in FIG. 2, in the shear weighing step A, the main weighing unit 11 measures in advance so as to be smaller than the set value of the shear P, and this fixed amount of shear is divided into a plurality of masses via the partition plate 21A along the rotation direction. It is fed into one mass of the rotary mass 21 that is intermittently rotated at an angle of 120 degrees divided into two. In this intermittent rotation operation, the eccentric output shaft 26 in the cam groove 23A rotates 120 degrees while pushing the inner wall of the cam groove 23A, then the pressure is released and the roller 20 slides along the cam groove 23A. The operation is performed by repeating the operation of being introduced into the cam groove 23A and rotating 120 degrees while pushing the inner wall of the cam groove 23A again. Then, the load cell 22 connected to the rotary mass 21 measures the weight of the shear P, calculates the difference from the set value, measures the difference as the target value of the auxiliary weighing unit 12, and determines the shear according to the difference. P is replenished by the auxiliary weighing unit 12.

  In the shaving supply process B for the turntable 3, the shaving P is supplied into the rice ball forming holes 3a arranged at predetermined intervals of the turntable 3 that rotates intermittently. Then, in the tool hole forming step C, a tool hole P ′ opened upward with respect to the substantially central portion of the shaver P in the rice ball forming hole is formed. In the material filling process D, the material v is pushed into the material hole P ′ and filled. The filling of the ingredient v may be manual or automatic. Finally, in the tool hole closing step E, the upper opening portion of the tool hole P ′ is closed by bringing the sharp rising portion P ″ around the tool hole P ′ toward the center. The tool hole closing means 33 raises the cradle in the push-up means 37 by the lifting / lowering means so that the peripheral edge of the tool hole P ′ formed simultaneously with the formation of the tool hole P ′ from the rice ball forming hole 3a of the turntable 3 that rotates intermittently. Only the sharp rising portion P ″ of the projecting portion is projected. Then, after the projecting rising portion P ″ of the plurality of claws 35 is brought close to the center side by the closing operation of the plurality of claws 35, the tool hole is closed by pushing the pushed shaving P downward by the lowering of the pressing portion 36. (Refer to Fig. 7 (a), (b), (c) and Fig. 8 (d), (e), (f)) In this way, the rice ball W filled with the ingredient v in the center is formed. It is what is done.

In the first spraying step G, sprinkled food h such as salt and sesame is sprinkled and sprinkled toward one side of the rice ball W. Thereafter, the rice ball W is reversed from one surface to the other surface by the reversing step H. In the second spraying step I, the sprinkled food h such as salt and sesame is sprinkled and sprinkled toward the other side of the rice ball W. That is, in each of the first spraying process G and the second spraying process I, the protrusion 77A of the rotating eccentric cam 77 repeatedly hooks the other end of the leaf spring 81, whereby the hopper vibration shaft 80 is moved to the lower fixing plate 72. As a result, the sprinkled food h clogged in the spray hole s of the intermediate slide plate 74 is forcibly shaken downward from the spray hole s of the lower fixed plate 72. Further, in the reversing step H, the driving source 75 is driven in a timing with the operation of the conveyor 83, and the three reversing plates 84 on the front end side of the rotating shaft are intermittently rotated 180 degrees in accordance with this timing operation. The rice ball W fitted and held in the fitting portion 84a of the reversing plate 84 is reversed from one surface to the other surface.

  In the automatic packaging process J, the rice ball W is lifted and moved by the lift mechanism 52 of the automatic packaging mechanism 51, and the packaging turntable is rotated intermittently after being automatically wrapped while being folded from above with a sheet member Q containing nori. It is pushed out to the 53 side by the transport block 60 and supplied to the inside of the rice ball insertion hole R. That is, the rice ball W on the mounting table 57 is supplied into the insertion portion 59A of the insertion block 59 in a state where the seaweed-containing sheet member Q supplied and arranged by the conveyor 64 is wound, and pressed by the pressing member 59B. Then, with the shape retaining rod member 58 locked, only the mounting table 57 is raised to the position of the transport block 60 and is placed in the vicinity of the packaging turntable 53. Then, the conveyance block 60 is slid forward, and the rice ball W in the insertion block 59 is conveyed to the rice ball insertion hole R side of the packaging turntable 53 in a state in which the sheet member Q with seaweed is wound around the lower surface of the rice ball W. Let

  Finally, in the sealing step K, the overlapped portion of the sheet member Q with seaweed after packaging is fixed by thermocompression bonding using the heat press device 103 of the seal portion 61. That is, the corners of the seaweed-containing sheet member Q in a state in which the rice ball W conveyed into the rice ball insertion hole R is rolled up and a part of the rice ball is protruded upward, are folded inward by the folding baffle plate 101 and the folding lever piece 102. After folding, it is fixed by crimping with the heating rod of the heat press apparatus 103. Then, after the label sticking process L, it is dropped to the lower discharge conveyor 62 side and discharged M.

It is a partially cutaway side view of the rice ball manufacturing apparatus in the best mode for carrying out the present invention. It is a flowchart which similarly shows the procedure of a rice ball manufacturing process. It is a partially cutaway perspective view showing the periphery of the rotary mass. It is a partially cutaway perspective view of the periphery of the main measurement part which similarly measures the weight of the shaving in a rotary mass. It is a partially cutaway side view around the main measuring section. It is a partially cutaway rear view of the main measuring section. (A) thru | or (c) are sectional drawings which show the procedure of a shrimp closing process. (D) thru | or (f) is sectional drawing which shows the procedure of a shrimp closing process. It is a partially cutaway top view around a direction change part. It is a top view of a sprinkling mechanism part. It is a side view of a sprinkling mechanism part. It is a perspective view which shows the principal part of the inversion mechanism part. It is a side view which shows the principal part of the lift mechanism in an automatic packaging mechanism part. It is a front view of a lift mechanism similarly. It is a top view of a lift mechanism similarly. It is a perspective view of a lift mechanism similarly. It is a top view explaining the conveyance procedure from the lift mechanism of a rice ball to the turntable for packaging in the automatic packaging mechanism part similarly. Similarly, the procedure for packaging rice balls with a laver-containing sheet member in the lift mechanism will be described, wherein (a) is a partially cutaway perspective view in a first folded state, and (b) is an overall perspective view of a rice ball in a finished packaging state.

P Shari P 'Concavity P "Shari rising part h Sprinkled food W Rice ball W' Corner v Ingredients Q Nori-containing sheet member A Shari metering process B Shari feeding process C Tool hole forming process D Ingredient filling process E Shari closing process F Direction change process G First spraying process H Reversing process I Second spraying process J Automatic packaging process K Sealing process L Label sticking process M Discharge process 1 Equipment body 2 Shaving supply part 3 Tar table 3a Rice ball forming hole 10 Hopper 11 Main measurement Unit 12 Auxiliary weighing unit 13 Measuring unit 14 Roller conveyor 15 Shutter mechanism 15A Pushing plate 15B Rotating cutter 15C Fixed receiving unit 21 Rotary mass 21A Partition plate 22 Load cell 23 Cam body 23A Cam groove 24 Rotating shaft 25 Drive motor 26 Eccentric output shaft 27 Arm Plate 28 Stopper mechanism 28A Pressing lever plate 28B Pressing operation portion 28C Stopper pin 28D Engaging hole 28E Coil spring 31 Tool hole forming device 33 Shaft closing means 35 Claw part 36 Pressing part 37 Pushing means 38A Connector block 38B Support arm 38C Lifting arm 38D Mounting arm 38E Link plate 38F Base plate 41 Direction changing mechanism 41A Rotating arm 41B Pressing operation body 41C Bending portion 41D Introduction recess 42 First sprinkling device 43 Reverse mechanism 44 Second sprinkling device 51 Automatic packaging mechanism 52 Lift mechanism 53 Packaging turntable 54 Lifting rod 55 Spring Coil spring 56 Piston mechanism 57 Mounting table 58 Shape retaining rod member 59 Insertion block 59A Insertion part 59B Pressing member 59C Long groove part 60 Transport block 60A Triangular groove part 61 Seal part 62 Discharge conveyor 63 Base plate 4 conveyor 71 hopper 72 lower fixed plate 72a contact piece 73 bottom wall 74 intermediate slide plate 75 drive source 76 drive shaft 77 eccentric cam 77A projection 78 link arm 79 drive crank portion 80 hopper drive shaft 81 leaf spring 82 hopper vibration means 83 Conveyor 84 Reversing plate 84a Fitting portion 85 Drive source 86 Drive shaft 91 Gear head 92 Photomicrosensor 93 Signal cam 94 Drive coupling 95 Bearing 96 Seal case 101 Folding baffle plate 102 Folding lever piece 103 Heat press device s Spray hole R Onigiri insertion hole

Claims (5)

A shear weighing process that supplies a fixed amount of metered shear that is less than the set value of the shear, measures the weight of the shear, calculates a difference from the set value, and makes it possible to replenish the shortage ,
Shari supplying step for supplying the rice balls into the rice ball forming holes arranged at predetermined intervals of the turntable that rotates the shari intermittently;
A tool hole forming step for forming a tool hole opened upward with respect to the substantially central part of the shaving in the rice ball forming hole;
Ingredient filling process for pushing and filling the ingredients into the ingredient holes,
Shari closing process of closing the upper opening of the tool hole by bringing the tool hole periphery to the center side,
A spraying process of sprinkling salted foods such as salt and sesame seeds on rice balls;
An automatic packaging process that automatically wraps rice balls while folding them with sheet material containing nori;
In the method of manufacturing a packaged rice ball comprising a sealing step in which the overlapped portion of the sheet member after packaging is fixed by thermocompression bonding ,
In the shear measurement step, the shear is supplied into one mass of the rotary mass intermittently rotating divided into a plurality of masses along the rotation direction, the weight of the shear is measured by the rotary mass, and the difference from the set value is calculated. A method for producing a packaged rice ball characterized in that the shortage can be replenished . A main weighing unit for supplying a fixed amount of metering that has been weighed in advance so that it is less than the set value of the shaft;
A measuring unit for measuring the weight of the fixed shaving;
An auxiliary weighing unit that calculates the weight difference between the set value of the shear and the quantitative shear measured by the measurement unit, and replenishes the shear according to the difference ;
A shari supply unit that feeds into the rice ball forming holes arranged at predetermined intervals of the turntable that rotates the shari intermittently;
A tool hole forming part for forming a tool hole opened upward with respect to a substantially central part of the shaving in the rice ball forming hole;
An ingredient filling portion for pushing and filling the ingredient into the ingredient hole;
Shari closing means for closing the upper opening portion of the tool hole by bringing the tool hole periphery to the center side,
A sprinkling device for spraying sprinkled foods such as salt and sesame seeds on rice balls,
An automatic packaging mechanism that automatically wraps rice balls with seaweed-containing sheet members,
In a packaging rice ball manufacturing apparatus consisting of a seal portion that fixes a heated and pressure-bonded overlapping portion of sheet members after packaging,
The measuring part is formed so as to measure the weight of the fixed amount of the fixed amount of gas supplied to one mass of the rotary mass intermittently divided into a plurality of masses along the rotation direction. apparatus.   3. The packaging rice ball according to claim 2, wherein the main weighing unit and the auxiliary weighing unit comprise a roller conveyor formed by vertically arranging opposing roller rows so as to convey a specified amount of the shear and a shutter mechanism for dividing the shear. Manufacturing equipment.   4. The packaging rice ball manufacturing apparatus according to claim 2, wherein the main weighing unit measures the weight of the shaving in the rotary mass with a load cell connected to the rotary shaft of the rotary mass.   The rotary mass extends in the radial direction at intervals of 120 degrees, and a cam body having three cam grooves that communicate with each other at the center is mounted on the same axis as the rotary shaft of the rotary mass. The packaging rice ball manufacturing apparatus according to any one of claims 2 to 4, wherein the output shaft is slidably fitted, and 360 degree rotation of the eccentric output shaft of the motor is converted into 120 degree rotation of the rotary mass.

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