JP4475539B2 - Cutting device for cooked food - Google Patents

Description

  The present invention relates to a cutting apparatus for cooked rice food for cutting stick-shaped cooked rice foods such as sushi rolls and thick rolls.

Conventionally, the manufacturing apparatus which manufactures stick-shaped cooked rice foods, such as a rolled sushi, has been developed, for example, in patent documents 1, after shaping rice into a sheet shape and supplying it to the upper surface of a sheet-like laver, An automatic sushi making machine is described in which a sheet-like seaweed is wound and formed and cut into a predetermined length by a rotating cutting blade. Moreover, in patent document 2, since the shape loss occurs at the time of cutting of rolled sushi in the manufacturing machine of patent document 1, the cutting blade while pressing the bar-shaped rolled sushi against a plurality of vertically arranged cutting blades in the vertical direction. A rolling sushi cutting machine is described in which the sushi roll is cut up and down into a bite-sized width.
JP-A-8-103233 JP 2002-95431 A

  In Patent Document 1 described above, rolled sushi is cut with a rotating cutting blade, but such a cutting device cuts like a so-called push-cut so that it looks out of shape at the cut surface. Will be bad. In the case of a thick roll with various ingredients wrapped in rice at the center, if you try to cut with such push cuts, the entire shape will collapse and each ingredient will be crushed and you will not know what ingredients are in it , The commercial value will be lost.

  In the description of Patent Document 2, the cutting blade is moved up and down to perform so-called cutting. However, when a thick roll is to be cut, there is a possibility that the shape may be lost when pressed against the cutting blade. It is difficult to adjust the pressing operation of the thick winding and the cutting operation of the cutting blade, and it is difficult to beautifully form the cut surface of the wrapped material.

  Then, an object of this invention is to provide the cutting apparatus for cooked rice foods which can cut | disconnect various rod-shaped cooked rice foods including a thick roll, without losing shape, and can form a beautiful cut surface.

  The cutting apparatus for cooked rice food according to the present invention is a cutting apparatus for cooked food that wraps ingredients at the center with cooked rice and cuts the molded product formed into a rod shape, and each blade portion is cut along the cutting surface. A pair of blade bodies that are arranged to face each other and whose blade edges are set to be substantially parallel to each other, and a cutting position where the blade body is rotated to come into contact with each other to cut the molded product and apart from each other Driving means for swinging between retreat positions for retreating from the molded product, and the blade edge of the blade body is set in a state inclined with respect to a direction orthogonal to the rotation direction of the blade body. It is characterized by that. Further, the sword body is formed with a protrusion that protrudes in the rotation direction from the blade edge, and when the sword body rotates to the cutting position, the protrusions of the sword body contact each other before the blade edge. It is characterized by being in contact.

  By having the above-described configuration, a pair of blade bodies that are set so that their blade portions are opposed to each other along the cut surface and their blade edges are substantially parallel to each other are rotated so that they touch each other. Since the molded product is cut in contact with each other, the sword body is pressed so as to be sandwiched from both sides of the molded product, and it is less likely to lose its shape as compared to the case of pressing and cutting from one side. In addition, since the ingredients are sandwiched and cut from both sides, even when there are many ingredients, the ingredients are not displaced and cut, and the cut surface of the ingredient is not broken.

  Since the blade edge of the blade body is set to be inclined with respect to the direction orthogonal to the rotation direction of the blade body, the blade edge is inclined obliquely with respect to the rotation direction when cutting. When pressed against the molded product in a state, a so-called drawing operation is performed, and the cut surface is formed beautifully.

  Further, the sword body is formed with a protrusion that protrudes in the rotation direction from the blade edge, and when the sword bodies rotate to the cutting position, the protrusions abut each other before the blade edge. Therefore, the blade edges of the blade body can be prevented from colliding and being damaged when they are rotated toward the cutting position.

  In other words, in order to form a cut surface beautifully, it is necessary to perform a cutting operation so that the blade portions of the sword body are in close contact with each other, but when the blade portions come close to each other, the blade edges collide with each other. Risk increases. Therefore, it is possible to prevent a collision by the protrusions coming into contact with each other before the blade edges come into contact with each other and the blade edges coming into contact with each other after adjusting the positional relationship in advance.

  Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 is an overall schematic front view relating to a food molding apparatus provided with a rice food cutting apparatus according to the present invention. The food molding apparatus A is composed of a plurality of mechanisms. From the left side of the drawing in the order in which the cooked rice B is molded, the supply mechanism 1 for unraveling and supplying the cooked rice B, and the cooked rice B supplied from the feed mechanism 1 are used. A sheet forming mechanism 2 that spreads in a sheet shape, a sealing mechanism 3 that seals both sides of a cooked rice sheet in which various ingredients are arranged in the center, and a rod-shaped molded product C that is sealed by the sealing mechanism 3 is cut. And a dividing mechanism 4 for dividing. Further, a laver supply device 70 that supplies sheet-like laver is installed between the sheet forming mechanism 2 and the sealing mechanism 3.

  The process of forming the rolled sushi with the food molding apparatus A will be described. First, when the operator inputs the cooked rice B prepared in the sushi rice into the supply mechanism 1, the rice chunks of the cooked rice B that are appropriately adhered to each other due to the viscosity of the cooked rice B Is conveyed to the right side of the drawing on the conveyor 11. And the rice lump of the cooked rice B is moderately loosened by being caught in the rotating loosening member 12 and supplied from the upper part of the sheet forming mechanism 2 so as to fall from the conveyor 11. The supplied cooked rice B is fed to the lower part continuously by adjusting the feed amount by the pair of feed rollers 20, further conveyed to the right by the conveyor 21, and reaches the spreading roller 22 to a predetermined thickness. Then, it is formed into a continuous sheet-shaped cooked rice sheet that is spread out.

  While the cooked rice sheet carried out from the spreading roller 22 is controlled to be formed into a predetermined amount of cooked rice sheet while being transferred by the conveyor, the worker has the kanpyo, cucumber, Arrange various ingredients such as eggs. If necessary, powder such as salted and sesame seeds may be sprayed with a powder shaker or the like. Then, the cooked rice sheet is appropriately naturally cooled while being conveyed by the conveyor, and the sheet-like laver D is supplied to the lower surface before being conveyed to the sealing mechanism 3.

  The sheet-like seaweed D has substantially the same width as the cooked rice sheet, and is fed from the supply roll 71 of the seaweed supply apparatus 70 and supplied. The fed sheet-like seaweed D is placed on the upper surface of the conveying belt 72 and conveyed upward together with the conveying belt 72, and conveyed from the supply port 73 opened in front of the sealing mechanism 3 to the lower surface of the cooked rice sheet. It is inserted between the conveyor. The surface of the conveyor belt 72 is anti-slip processed, and the placed sheet-like laver D does not slip. Further, in order to prevent the sheet-like seaweed D from slipping, the sheet-like seaweed D may be conveyed by punching and sucking a large number of air inlets in the conveying belt 72.

  The rice sheet with the sheet-like seaweed adhered to the lower surface is conveyed to the right by the sealing conveyor, and both sides of the rice sheet are wrapped around the ingredients arranged in the center by a plurality of sealing members 32. It is conveyed to the right while being formed into a substantially rod-shaped molded product C which is sealed and continuous. Such a sealing mechanism may be a known device as described in Japanese Patent No. 2896503.

  The rod-shaped molded product C is transported by the transport conveyor and introduced into the dividing mechanism 4. In the dividing mechanism 4, the rod-shaped molded product C is cut by the cutting device 40, and the molded product E divided by the divided conveying device 50 is carried out.

  FIG. 2 is a side view relating to the cutting device 40. For ease of understanding, the exterior frame and the like are omitted. In FIG. 2, the rod-shaped molded product C is carried into an opening 41 provided at the center of the cutting device 40 by a divided conveying device 50 described later, and is a view seen from the carrying direction. Yes. The cutting device 40 includes a pair of blade bodies 42 and 43 and four rotation shafts 44a to 44d. The four rotation shafts are arranged at equal intervals so as to surround the opening 41 and are rotatably attached. The blade body 42 is fixed to the rotation shaft 44a, and the blade body 43 is fixed to the rotation shaft 44b.

  Flange 45a-45d is being fixed to each rotation axis, respectively, and links 46a-46d which connect each flange are pivotally attached. One end of the link 46c extends and is pivotally attached to a swinging member 47a fixed to a rotating shaft 47 of a motor (not shown). Therefore, when the motor rotates back and forth by a predetermined angle, the swing member 47a swings and the links 46a to 46d operate in association with each other, and the flanges 45a to 45d rotate back and forth by a predetermined angle. Then, the pair of blade bodies 42 and 43 swings by a predetermined angle by the reciprocating movement of the flanges 45a and 45b.

  3 is a plan view (FIG. 3A), an X1-X1 cross-sectional view (FIG. 3B), and an X2-X2 cross-sectional view (FIG. 3C) related to the sword body 42. Since the sword body 43 has the same shape as the sword body 42, the description thereof is omitted.

  The blade body 42 is formed of a thin metal plate-like body, and one side of the longitudinal direction is ground on one side to form a band-shaped blade portion 42a, and a linear blade edge 42b is formed on the side end thereof. Is formed.

  The blade tip portion 42c is not formed with a blade portion, and is formed with a projection 42d that protrudes from the blade edge 42b in the lateral direction. The tip of the protrusion 42d has a rounded inclined surface 42e formed by scraping the surface opposite to the surface on which the blade 42a is formed.

  In the blade base portion 42, a mounting hole 42h to be inserted into the rotating shaft 44a is formed in a substantially central portion of the mounting portion 42g formed to bulge greatly on the side opposite to the side on which the blade portion 42a is formed. A positioning hole 42i is formed adjacent to the mounting hole 42h. The positioning hole 42i is positioned on the rotation shaft 44a by being fitted into the positioning pin when the blade body 42 is inserted into the rotation shaft 44a.

  The operation of the cutting device 40 will be described with reference to FIGS. 2, 4, 5 and 7. As shown in FIG. 2, in the pair of blade bodies 42 and 43, the blade portions 42a and 43a face each other along the cut surface of the rod-shaped molded product C, and the blade edges 42b and 43b are substantially parallel to each other. It is set to be. And it attaches so that the surface on the opposite side to the surface in which the blade part was formed may mutually contact | abut at the time of a cutting | disconnection.

  Further, the blade edges 42b and 43b are set to be inclined with respect to the direction orthogonal to the rotation direction of the blade bodies 42 and 43. That is, in FIG. 2, the direction Y orthogonal to the rotation direction of the blade body 42 is a linear direction passing through the rotation center axis, but the blade edge 42b is inclined at a predetermined angle clockwise with respect to the direction Y. Is set. By setting the blade edge 42b in a tilted shape in this way, a pulling operation can be performed as will be described later.

  In FIG. 2, the rotation shaft 47 of the motor rotates counterclockwise, so that the pair of blade bodies 42 and 43 set at the retracted positions separated from each other rotate in a direction approaching each other. As shown in FIG. 4, the blade edges 42b and 43b are pressed almost simultaneously on both sides of the rod-shaped molded product C. Further, when the blade bodies 42 and 43 are rotated, cutting is started in a state in which the blade portions 42a and 43a sandwich the rod-shaped molded product C. At that time, as described above, since the blade edges 42b and 43b are set in a state inclined from the direction orthogonal to the rotation direction, the portion pressed against the rod-shaped molded product C is rotated while being shifted. Then, the pulling operation is performed. Therefore, the seaweed that is in close contact with the outer surface can be cut with good sharpness, and the internal cooked rice is also cut finely by drawing.

  In this way, the cooked rice is cut while being sandwiched between the blade portions 42a and 43a, and when the blade edges 42b and 43b reach the ingredients at the center, as shown in FIG. And the cutting operation is performed so as to be sandwiched by 43b and 43b, so that the material is cut with good sharpness without being displaced, and a beautiful cut surface is formed. In addition, since the cutting operation can be performed in the same manner even when the thickness of the rod-shaped molded product C and the content of the material are changed, it can be widely used for a scroll in general.

  At this time, when the sword bodies 42 and 43 rotate and approach each other, as shown in FIG. 5, the protrusion 42d comes into contact with the blade edge 43b and the protrusion 43d comes into contact with the blade edge 42b. . FIG. 6 is an enlarged cross-sectional view showing a process in which the protrusion comes into contact with the blade edge. If there is a gap between the blade portions 42a and 43a, chips may be generated during cutting. Therefore, the back surfaces of the blade portions 42a and 43a are positioned so that no gap is generated (FIG. 6A). Since the protrusions 42d and 43d are formed on the inclined surfaces 42e and 43e having rounded ends, the protrusions 42d and 43d are in sliding contact with the back surfaces of the blades 42a and 43a without colliding with the blade edges 42b and 43b. (FIG. 6B). Then, the protrusions 42d and 43d are slidably contacted and smoothly moved, so that the subsequent blade edges 42b and 43b come into slidable contact with the back surfaces of the blades, and the blade bodies 42 and 43 abut against each other without any gap. It becomes like this.

  Then, as shown in FIG. 7, the blade bodies 42 and 43 set at the cutting positions in contact with each other perform the cutting operation with the blade portions 42a and 43a overlapping with no gap therebetween. No chip is generated between the first and second portions 43 and 43, so that it can be cut cleanly.

  FIG. 8 is a schematic front view relating to the divided conveyance device 50. The split conveyance device 50 includes a carry-out conveyor 51 and a carry-in conveyor 52 in the conveyance direction of the rod-shaped molded product C with the cutting device 40 interposed therebetween. The two transport surfaces are arranged along the transport direction.

  In the carry-out conveyor 51, a driving pulley 51a and a downstream end pulley 51b are pivotally supported by a fixed base (not shown), and an intermediate pulley 51c and an upstream end pulley 51d are pivotally supported by a movable base 51e. A conveyor belt 51f is stretched around each pulley, and the drive pulley 51a is rotationally driven so that the conveyor belt 51f is conveyed from the upstream end pulley 51d toward the downstream end pulley 51b. The movable base 51e is provided so as to be movable in the transport direction. As will be described later, by moving the movable base 51e, the upstream end pulley 51d is moved in the transport direction to move from the upstream end pulley 51d to the downstream end pulley 51b. The length of the transport surface can be changed.

  In the carry-in conveyor 52, a driving pulley 52a and an upstream end pulley 52b are pivotally supported by a fixed base (not shown), and an intermediate pulley 52c and a downstream end pulley 52d are pivotally supported by a movable base 52e. A conveyor belt 52f is stretched around each pulley, and the drive pulley 52a is rotationally driven so that the conveyor belt 52f is conveyed from the upstream end pulley 52b toward the downstream end pulley 52d. The movable base 52e is provided so as to be movable in the transport direction. As will be described later, by moving the movable base 52e, the downstream end pulley 52d is moved in the transport direction to move from the upstream end pulley 52b to the downstream end pulley 52d. The length of the transport surface can be changed.

  The air cylinder 53 is fixed to a fixed base (not shown), and the drive rod 54 of the air cylinder 53 is set so as to go downstream in the transport direction. A support rod 55 that supports the movable base 51e and a support frame 56 that supports the cutting device 40 are fixed to the drive rod 54. A support arm 57 projects from the upper part of the support frame 56 toward the upstream side in the transport direction. An air cylinder 58 is fixed to the distal end portion of the support arm 57, and the drive rod 59 of the air cylinder 58 is set so as to go downstream in the transport direction. A stay 60 is suspended from the tip of the drive rod 59, and a movable base 52 e is fixed to the lower end of the stay 60.

  Based on FIG. 8 to FIG. 14, an operation related to the divided transport device 50 will be described. In FIG. 8, the rod-shaped molded product C is conveyed by the carry-in conveyor 52, passes through the opening 41 of the cutting device 40, and is subsequently conveyed by the carry-out conveyor 51. In FIG. 8, the downstream end pulley 52d of the carry-in conveyor 52 and the upstream end pulley 51d of the carry-out conveyor 51 are set at close positions, and the carry-out conveyor 51 and the carry-in conveyor 52 are driven at the same conveyance speed. C is transported smoothly.

  When the rod-shaped molded product C is carried into the carry-out conveyor 51 by a predetermined length, as shown in FIG. 9, the air cylinder 53 is operated to pull the drive rod 54 upstream in the carrying direction, and the cutting device 40 and the movable platform 51e. Is moved upstream in the transport direction. In addition, since the air cylinder 58 also moves upstream in the transport direction via the support frame 56 and the support arm 57, the movable base 52e fixed to the tip of the drive rod 59 via the stay 60 is also upstream in the transport direction. To move.

  As the movable base 51e moves, the upstream end pulley 51d moves a predetermined distance upstream in the transport direction, and as the movable base 52e moves, the downstream end pulley 52d also moves in the same manner. Since the end pulley 52d moves at the same time, the conveyance of the rod-shaped molded product C is not affected, and the conveyance operation is continuously performed.

  Then, as shown in FIG. 10, the air cylinder 58 is operated, the drive rod 59 is pulled in, and the movable base 52 e is further moved upstream in the transport direction via the stay 60. Therefore, the downstream end pulley 52d moves to the upstream side in the transport direction, and a predetermined interval is provided between the downstream end pulley 52d and the upstream end pulley 51d.

  The distance between the upstream end pulley 51d and the downstream end pulley 52d is set so that the blade bodies 42 and 43 of the cutting device 40 can swing. As shown in FIG. Is driven to start the above-described cutting operation. Even during the cutting operation, the carrying operation of the carry-out conveyor 51 and the carry-in conveyor 52 is continued, so that the sword is operated while the air rod 53 is operated and the drive rod 54 is projected from the time when the cutting operation shown in FIG. The bodies 42 and 43 are moved to the retracted position. Since the cutting body 40 and 43 are retracted while the cutting device 40 moves downstream in the conveying direction due to the protrusion of the drive rod 54, the cutting surface of the rod-shaped molded article C to be conveyed is restrained by the sword bodies 42 and 43, and the conveying operation is performed. Without interruption, the cut surface is also pressed against the sword body and does not lose its shape.

  As the drive rod 54 protrudes, the movable bases 51e and 52e also move downstream in the transport direction, and as shown in FIG. 14, the air cylinder 58 operates and the drive rod 59 protrudes to further transport the movable base 52e. The downstream end pulley 52e returns to the original position close to the upstream end pulley 51d by moving downstream in the direction, and the conveying operation of the rod-shaped molded product C is continued.

  As described above, since the cutting operation is performed by moving the cutting device while continuing the conveying operation of the rod-shaped molded product C, the cutting surface can be finished cleanly without losing its shape, and the production efficiency can be improved. it can.

  In this embodiment, the sheet-like seaweed is closely attached to the cooked rice sheet and then sealed to form and cut a rod-shaped molded product, but the ingredients are arranged and sealed on the cooked rice sheet. You may make it shape | mold and cut | disconnect in a rod-shaped molded object, and wind seaweed around the outer peripheral surface of the cut molded object. In that case, the cut molded product can be wrapped in advance with a packaging sheet containing laver. Moreover, the cutting device of this embodiment can also be used for a cooked rice food molding apparatus as described in Japanese Patent No. 3814686 by attaching four shutter pieces instead of the blade body, It can be used not only for cutting such as rice balls but also for producing rice balls.

It is a whole schematic front view regarding the embodiment concerning the present invention. It is a side view regarding a cutting device. It is the top view regarding a sword body, X1-X1 sectional drawing, and X2-X2 sectional drawing. It is explanatory drawing regarding operation | movement of a cutting device. It is explanatory drawing regarding operation | movement of a cutting device. It is an expanded sectional view showing the state where a projection part contacts a blade edge. It is explanatory drawing regarding operation | movement of a cutting device. It is a schematic front view regarding a division | segmentation conveying apparatus. It is explanatory drawing regarding operation | movement of a division | segmentation conveying apparatus. It is explanatory drawing regarding operation | movement of a division | segmentation conveying apparatus. It is explanatory drawing regarding operation | movement of a division | segmentation conveying apparatus. It is explanatory drawing regarding operation | movement of a division | segmentation conveying apparatus. It is explanatory drawing regarding operation | movement of a division | segmentation conveying apparatus. It is explanatory drawing regarding operation | movement of a division | segmentation conveying apparatus.

Explanation of symbols

A Food forming apparatus B Cooked rice C Stick-shaped product D Sheet-like seaweed E Molded product 1 Feeding mechanism 2 Sheet-forming mechanism 3 Sealing mechanism 4 Dividing mechanism
40 cutting equipment
42 Sword Body
43 Sword Body
50 division conveyor

Claims (2)

  A cutting device for cooked rice food that wraps ingredients in a central portion with cooked rice and cuts a molded product formed into a rod shape, and the blade edges of each other are arranged so as to face each other along the cut surface. Between a pair of sword bodies set so as to be parallel, a cutting position where the sword body is rotated to contact each other to cut the molded product, and a retreat position where they are separated from each other and retracted from the molded product A cutting device for cooked rice food, characterized in that the blade edge of the sword body is inclined with respect to a direction orthogonal to the direction of rotation of the sword body.   The sword body is formed with a protrusion that protrudes in the direction of rotation from the blade edge, and when the sword body rotates to the cutting position, the projecting parts abut each other before the blade edge. The cutting apparatus for cooked rice food according to claim 1, wherein

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