Flyer and rice cracker manufacturing method

Abstract

To provide a fryer capable of vertically moving a container in an oil tank without depending on a prime mover for driving a container support part.SOLUTION: A fryer comprises: a first lifting device 40 for lifting a container 30 including a container body having a plurality of through-holes in at least a part thereof and an openable / closable lid, with it supported by ends 45A of a pair of rod-like container support parts 45, and disposing the container at a position where the container enters an oil tank 20 and a discharge position away from the position; and a second lifting device 50 for vertically moving the container 30 by a slider of a reciprocating slider crank mechanism 53, with the container 30 put in the oil tank 20. The first lifting device 40 includes a clutch 44 for transmitting and cutting off power from a driving shaft 42 on a first prime mover 41 side to a driven shaft 43 to which the container support parts 45 are fixed, and the second lifting device 50 vertically moves the container 30 in a state where the power transmission from the drive shaft 42 to the driven shaft 43 is cut off by the clutch 44.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a fryer for frying rice cracker dough and a method for producing rice crackers. [Background technology]

[0002] Rice crackers and other rice crackers are produced by, for example, cutting rice cracker dough into a predetermined shape from a material sheet, adjusting the moisture content to a predetermined level, heating the dough to expand it, and then seasoning it. When heating the dough, a fryer can be used.

[0003] FIG. 13 is a perspective view showing a conventional fryer 90. The conventional fryer 90 is equipped with an oil tank 91 containing oil for frying dough for rice crackers, a container 92 for holding the dough, and a lifting unit 93 for raising and lowering the container 92 to place it either inside or outside the oil tank 91.

[0004] The container 92 is made up of a bottom and side walls rising from the periphery of the bottom, has an open top, and for example, the bottom is formed in a mesh shape with multiple through holes. The lifting unit 93 has a container support part 93A that is moved by a motor, and the container 92 is fixed to one end of the container support part 93A. The lifting unit 93 includes a prime mover, a shaft that is rotated by the prime mover, and a container support unit that has the shaft fixed to one end and supports a container at the other end.

[0005] Conventionally, when frying rice cracker dough, efforts have been made to heat each piece of dough evenly. Patent Document 1 discloses a fryer equipped with multiple paddles that stir oil while the container is placed in an oil tank. The multiple paddles are fixed to a shaft, and as the shaft rotates, the paddles move to stir the contents of the container.

[0006] Instead of such a paddle unit, it is conceivable to heat the rice cracker dough inside the container evenly by moving the container 92 shown in Figure 13 up and down while it is placed in an oil tank. For example, during the process of frying the rice cracker dough, if the tip of the container support unit 93A is repeatedly moved up and down by a motor within a range where the up and down movement distance of the tip of the container support unit is shortened, the position and orientation of the rice crackers inside the container 92 will change, and it can be expected that each will be heated sufficiently. Summary of the Invention [Problem to be solved by the invention]

[0007] When container 92 is moved up and down by container support unit 93A, if there is a deviation in the rotation angle of the motor shaft, the container position may deviate significantly from its initial set position in proportion to the distance from the tip of the container support unit to the shaft. Therefore, a device that moves the container up and down to heat the dough evenly without relying on a motor for driving the container support unit is desired.

[0008] The present invention aims to provide a fryer that can move containers up and down in an oil tank without relying on a prime mover for driving a container support section, and a method for producing rice crackers. [Means for solving the problem]

[0009] The fryer of the present invention is a device for raising and lowering a container, which has a container body having a plurality of through holes at least in a portion thereof and a lid that can be opened and closed, while being supported by the ends of a pair of rod-shaped container support parts, into an oil tank. R R Fried a first lifting device for placing the container in a position and a discharge position, and a slider of a reciprocating slider crank mechanism for moving the container in the oil tank. the end of the container support and a second lifting device that moves the The first lifting device is a first driving machine a clutch that transmits and cuts off power from a drive shaft on the side to a driven shaft to which the container support part is fixed, and when the clutch cuts off the power transmission from the drive shaft to the driven shaft, the second lifting device the end of the container support Move up and down. According to the fryer, when the rice cracker dough is fried in the oil tank, the transmission of power from the drive shaft on the first motor side to the driven shaft can be interrupted by a clutch, thereby allowing the container support part that supports the container to be moved by the second motor. The drive shaft may be a rotary shaft of the first prime mover or a shaft connected to the rotary shaft via a gear.

[0010] In the flyer of the present invention, the reciprocating slider crank mechanism preferably comprises a link member connected to the slider and a crank connected to the link member via a connecting shaft, and the crank is further provided with a plurality of mounting holes for mounting the connecting shafts, so that the link members of different lengths can be replaced. In the fryer of the present invention, a reducer is preferably provided between the first prime mover and the drive shaft. In the fryer of the present invention, preferably, the lid is disposed inside the container body. Established in The lid is fixed to the hinged part. attachment a lid opening / closing device provided at a higher position on the container than the lid and configured to open and close the lid movable part. Place It is prepared. The fryer of the present invention preferably includes a support frame that supports the oil tank, the first lifting device, and the second lifting device, and a cover that covers the reciprocating slider crank mechanism that protrudes outward from the support frame, and the slider protrudes upward from the cover. In the fryer of the present invention, the slider preferably contacts the end side of the container support portion via an elastic member.

[0011] In the flyer of the present invention, the clutch is preferably configured as a pneumatic or electromagnetic type that cuts off the transmission of power from the drive shaft to the driven shaft in a non-pneumatic or non-excited state, and The aforementioned No air pressure situation or The aforementioned Non-excitation situation fart ChangeThe device includes a descending suppression unit that suppresses the descending of the container during operation associated with the clutch, and a control unit that controls the clutch and the descending suppression unit. The descending suppression unit includes a plate portion that is provided on the driven shaft side of the clutch and has a plurality of holes around the center of rotation of the driven shaft, a descending suppression air cylinder that faces the plate portion, and an air storage unit that stores compressed air. The flyer a descent suppression solenoid valve that, in a non-energized state, allows the air to flow from the air storage unit into the descent suppression air cylinder. The flyer When energized, the clutch is controlled and the descent suppression solenoid valve of When the flyer changes from an energized state to a non-energized state, the clutch changes to the non-air pressure state or the non-excited state, and the air flows from the air storage unit through the descent suppression solenoid valve into the descent suppression air cylinder. TeRo dd Gashi The cylinder is pushed out of the cylinder body and enters one of the holes in the plate portion.

[0012] In the fryer of the present invention, preferably, the clutch is configured as a pneumatic type that cuts off the transmission of power from the drive shaft to the driven shaft in a non-pneumatic state, and the fryer further comprises an air supply system that sends compressed air to the clutch, and The aforementioned No air pressure situation fart Change The device is equipped with a descending suppression unit that suppresses the descending of the container during operation associated with the clutch, and a control unit that controls the clutch and the descending suppression unit. The air supply system includes an air supply unit that delivers the air, a check valve that prevents the air from flowing back to the air supply unit, an air storage unit that is provided downstream of the check valve and that stores the air from the air supply unit, and a branch unit that is connected to the air storage unit via a branch unit. Note 3-port 2-position direction control type connected to latch Noku and a latching solenoid valve. before Note In the latch solenoid valve, one port is open to the outside, and when excited, the air supply side is Note A flow path to the latch side is formed, and the NoteA flow path is formed that leads from the latch side to the outside. The descent suppression unit includes a plate portion provided on the driven shaft side of the clutch and having multiple holes around the center of rotation of the driven shaft, a descent suppression air cylinder facing the plate portion, and a 3-port 2-position directional control type descent suppression solenoid valve connected to the air storage unit via the branch portion and also connected to the descent suppression air cylinder. In the descent suppression solenoid valve, one port is open to the outside, and when excited, a flow path is formed from the descent suppression air cylinder to the outside of the descent suppression solenoid valve, and when de-excited, a flow path is formed from the air supply system to the descent suppression air cylinder. The control unit The flyer Powered on in The descent suppression solenoid valve of control and the above Latch solenoid valve of control and Do it in parallel. The aforementioned Flyer The aforementioned By changing from a powered state to a non-powered state, Note Latch solenoid valve the excited state of the clutch solenoid valve is changed to the non-excited state of the clutch solenoid valve, The descent suppression solenoid valve The excitation state of the descent suppression solenoid valve is It changes to a non-excited state and Note The latch changes to the no-air-pressure state, and the air flows from the air storage section through the descent suppression solenoid valve into the descent suppression air cylinder. TeRo dd Gashi The cylinder is pushed out of the cylinder body and enters one of the holes in the plate portion. The fryer of the present invention preferably has a front Note Latch and front Note The device includes a case that houses the latching electromagnetic valve, the plate portion, and the descent suppression electromagnetic valve, and the case has a ventilation hole.

[0013] The method for producing rice snacks of the present invention is to provide a rice snack having a plurality of through holes in at least a portion thereof. The container bodyThe method includes a loading step of loading rice cracker dough into a container whose inside is divided into upper and lower sections by a lid and placed in an oil tank; a frying step of placing the container in the oil tank and heating the rice cracker dough; and a discharging step of disposing the container at a discharging position outside the oil tank and discharging the fried rice cracker dough from the container, The container is supported by the ends of a pair of rod-shaped container supports. The container is raised and lowered into the oil tank. R R Fried Position and Away from this frying position In the lifting step of the manufacturing method, the clutch of the first lifting device is Description The power transmission from the drive shaft of the first motor to the driven shaft to which the container support part is fixed is interrupted, and the container support part of The end is placed on the upper end of the slider of the second lifting device, and with the container in the oil tank, the slider is reciprocated up and down by the second motor side of the second lifting device, causing the end of the container support part and the container to move up and down.

[0014] The method for producing rice snacks of the present invention preferably comprises: The lid includes a lid fixing portion provided on the inside of the container body and a lid movable portion attached to the lid fixing portion via a hinge, In the charging step, the clutch interrupts the transmission of power from the drive shaft to the driven shaft, and the container support part of The end is placed on the upper end of the slider, and with the container in the oil tank, the slider, which is at the bottom dead center, is raised by the second motor to hold the container at the loading position; A lid opening / closing device provided at a higher position than the lid in the container moves the lid movable part to open the dough inlet / outlet. The rice cracker dough is poured into the dough inlet / outlet located above the oil surface, and after the rice cracker dough is poured, the lid opening / closing device moves the lid movable part to close the dough inlet / outlet while the container is held in the pouring position by the slider.

[0015] The fryer of the present invention comprises a support frame, an oil tank supported by the support frame, a container having a container body with an open mouth at the top and a plurality of through holes in at least a portion thereof and a lid that can be opened and closed and divides the inside of the container body into upper and lower sections, a first lifting device supported by the support frame for raising and lowering the container to a position where it enters the oil tank and to a position where it is discharged outside the oil tank, and a second lifting device supported by the support frame for moving the container up and down while it is in the oil tank. The first lifting device comprises a first prime mover, a driven shaft arranged coaxially with the drive shaft on the first prime mover side extending laterally, a pair of container support parts each formed in a rod shape and fixed to the driven shaft, extending parallel to the driven shaft and supporting the container at its end, and a clutch which transmits and cuts off power from the drive shaft to the driven shaft. The second lifting device includes a second motor, a shaft arranged parallel to the driven shaft and rotated by the second motor, and a reciprocating slider crank mechanism arranged at each end of the shaft. The reciprocating slider crank mechanism has a slider that reciprocates up and down as the shaft rotates. The clutch cuts off the transmission of power from the drive shaft to the driven shaft, and the container support part falls down to place its end on the upper end of the slider, and with the container in the oil tank, the slider performs the reciprocating motion to move the container up and down. [Effects of the Invention]

[0016] According to the present invention, the transmission of power from the first motor for raising and lowering the container to the position for entering the oil tank and the position for discharging the container can be cut off, and the container can be moved up and down within the oil tank without relying on the second motor. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a front view of a fryer according to an embodiment of the present invention. [Figure 2] FIG. 1 is a plan view of a fryer according to an embodiment of the present invention. [Figure 3] 1. (a) is a cross-sectional view of the flyer taken along line S1-S1 in FIG. 1, and (b) is an enlarged front view of the crank in (a). [Figure 4] FIG. 3 is a cross-sectional view of the fryer taken along line S2-S2 in FIG. 2. [Figure 5] FIG. 1(a) is a front view showing a container of a fryer according to an embodiment of the present invention, FIG. 1(b) is a plan view of the container of FIG. 1(a), and FIG. 1(c) is a cross-sectional view of the container taken along line S3-S3 of FIG. 1(b). [Figure 6] (a) is a right side view showing the container and lid opening / closing device of a fryer according to an embodiment of the present invention, (b) is a plan view of the container and lid opening / closing device of (a), (c) is a cross-sectional view of the container and lid opening / closing device along line S4-S4 of (a), and (d) is a cross-sectional view of the container and lid opening / closing device with the movable lid open. [Figure 7] FIG. 1 is a diagram showing a method for producing rice snacks using a fryer according to an embodiment of the present invention. [Figure 8] 1(a) to 1(e) are diagrams showing a method for producing rice snacks using a fryer according to an embodiment of the present invention. [Figure 9] 1(a) to 1(d) are diagrams showing a method for producing rice snacks using a fryer according to an embodiment of the present invention. [Figure 10] FIG. 1(a) is a left side view showing a clutch and its periphery of a flyer according to a first modified example of an embodiment of the present invention, and FIG. 1(b) is a front view showing the clutch and its periphery of FIG. [Figure 11] 1(a) and 1(b) are piping diagrams showing an air supply system of a fryer according to a first modified example of an embodiment of the present invention. [Figure 12] 10(a) and 10(b) are diagrams showing a second modified example of the embodiment of the present invention. [Figure 13] FIG. 1 is a diagram showing a conventional fryer. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in Figure 1, the fryer 1 comprises a support frame 10 that lands on a work floor or the like, a ball-shaped oil tank 20 with an opening 201 at the top, a container 30 for holding rice cracker dough, a first lifting device 40 that raises and lowers the container 30 between a frying position where the container 30 is placed in the oil tank 20 and a discharge position set away from this position and outside the oil tank 20, a second lifting device 50 that moves the container 30 up and down while the container 30 is in the oil tank 20, a lid opening / closing device 60 that opens and closes a lid 33 provided on the container 30, a discharge device 70 that moves the container 30 to discharge the rice cracker dough from the container 30, and a control unit 80.

[0019] (Support frame 10) The support frame 10 comprises a first support frame 11 that supports the oil tank 20 and the second lifting device 50, a second support frame 12 that is provided next to the first support frame 11 and supports the first lifting device 40, and a connecting portion 13 that connects the first support frame 11 and the second support frame 12. The first support frame 11 comprises four rod-shaped legs 11A rising from the work floor, a plurality of rod-shaped connecting portions 11B connecting the legs 11A, a base 11C supported from below by the legs 11A, and an enclosure 11D provided on the base 11C to surround the mouth 201 of the oil tank 20 and protrude above the mouth 201 of the oil tank 20. The connecting portions 11B are provided on the lower end side of the legs 11A, which are positioned lower than the oil tank 20. The oil tank 20 is inserted into a through-hole in the enclosure 11D and fixed by welding. The second support frame 12 will be described together with the configuration of the first lifting device 40.

[0020] (container 30) As shown in Figure 5, the container 30 comprises a bowl-shaped container body 31 with an open mouth at the top, a pair of connecting parts 32 spaced apart from each other at the mouth of the container body 31 and connected to the first lifting device 40, and a lid 33 supported by the connecting parts 32 and provided on the inside of the container body 31.

[0021] The container body 31 includes a container bottom 311 and a cylindrical container side surface 312 that rises from the periphery of the container bottom 311. For example, the container bottom 311 is made of a wire mesh or the like and has a plurality of through-holes 311A. The through-holes may be provided in the container side surface 312, or in at least a portion of the container body 31. The container bottom 311 and the container side surface 312 are supported by a bent rod-shaped reinforcing portion 313 and a ring-shaped reinforcing portion 314 that forms a mouth. In other drawings, the container bottom 311 and the container side surface 312 are omitted, and the container body 31 is shown only with the rod-shaped reinforcing portion 313 and the ring-shaped reinforcing portion 314.

[0022] As shown in Figure 5(b), each connection part 32 comprises a connection body 321 fixed to the annular reinforcing part 314 and protruding upward from the mouth, a bar fixing part 322 provided inside the container body 31 of the connection body 321 and for attaching a bar 611 that supports the lid opening / closing device 60, and a link connection part 323 fixed to the connection body 321 and for connecting the discharge link 75 described later.

[0023] As shown in Figure 5(c), the lid 33 comprises a lid fixing portion 332 provided on the inside of the container body 31 via a bracket 331 on the bar fixing portion 322 of the connection portion 32, and a pair of lid movable portions 334 attached to the lid fixing portion 332 via hinges 333. The lid fixing part 332 is formed in a plate shape and is held by a bracket 331 at a depth position about midway between the container bottom 311 and the mouth inside the container body 31, and semicircular dough inlet / outlet openings 335 (see Figure 6(d)) are formed on one long edge side and the other long edge side of the lid fixing part 332 inside the container body 31. These dough inlet / outlet openings 335 are formed symmetrically. Each of the movable lid parts 334 has a semicircular outline in a plan view, a plurality of through-holes 334A, and is attached to the lid fixing part 332 via a hinge 333 with its linear edge aligned with the linear edge of the lid fixing part 332. The movable lid part 334 is moved around the axis of the hinge 333 by the lid opening / closing device 60 (described later) and can be switched between a position where it spreads horizontally to close the dough entrance / exit 335 and a position where it tilts to open the dough entrance / exit 335 (see Figure 6(d)).

[0024] (lid opening / closing device 60) As shown in Figure 6, the lid opening / closing device 60 comprises an air cylinder mounting portion 61 provided on the container body 31, an air cylinder 62 for opening and closing the lid supported by the air cylinder mounting portion 61, and an opening / closing link 63 connecting the air cylinder 62 for opening and closing the lid and the lid 33, and is provided at a position higher than the lid 33.

[0025] The air cylinder mounting portion 61 comprises a pair of bars 611 arranged in parallel and fixed at their ends to one bar fixing portion 322 and the other bar fixing portion 322 of the container 30, a case 613 having legs 612 rising from the pair of bars 611 and housing the air cylinder 62, an upper support frame portion 614 extending from one connection portion 32 above the case 613 to the other connection portion 32, a bracket 615 connecting the top surface of the case 613 and the upper support frame portion 614, and a flexible tube 616 provided on the upper support frame portion 614 through which a heat-resistant tube for air passes.

[0026] The case 613 is provided with a through hole for passing a heat-resistant tube (not shown) therethrough and a through hole for passing a rod 622 of the air cylinder 62 for opening and closing the lid therethrough.

[0027] The lid opening / closing air cylinder 62 is housed in a case 613, and a rod 622 protrudes from a through-hole in the case 613 to the inside of the container body 31. By changing the length of the rod pulled out from the cylinder body 621, the tip of the rod 622 moves between a position (top dead center) higher than the two bars 611 of the air cylinder mounting part 61 and a position (bottom dead center) lower than the bars 611. The tip of the rod 622 passes between the two bars 611 when moving from the higher position (top dead center) to the lower position (bottom dead center) or vice versa.

[0028] The opening / closing link 63 comprises a first link 631 formed in the shape of a narrow plate, one end of which is connected to the tip of the rod 622 of the air cylinder 62 for opening and closing the lid via an axis, a second link 632 connected to the other end of the first link 631 via an axis and connected via an axis to a protrusion 332A protruding from the lid fixing part 332, and a third link 633 formed in the shape of a narrow plate, one end of which is connected to the second link 632 via an axis and the other end of which is connected to a protrusion 334B protruding upward from the lid movable part 334 via an axis.

[0029] As shown in Figure 6(c), when the rod 622 of the lid opening / closing air cylinder 62 is at its bottom dead center, the movable lid part 334 closes the dough entrance / exit 335. When the tip of the rod 622 rises from this state, the first link 631 connected to it lifts the second link 632 upward, and the second link 632 moves around the fixed axis and lifts the third link 633, causing the movable lid part 334 to move around the hinge axis and become tilted. In this way, the lid 33 is opened, and as described below, rice cracker dough can be poured into the container body 31 or fried rice cracker dough can be discharged. On the other hand, when closing the lid 33, the tip of the rod 622 is moved from its top dead center to its bottom dead center, in the opposite direction to the lid 33 opening operation, so that the movable lid part 334 can close the dough entrance / exit 335.

[0030] The opening / closing link 63 is configured not to come into contact with the bar 611 as the lid movable part 334 opens and closes. As shown in Figure 6(d) , when the tip of the rod 622 is at its top dead height, the first connection point between the first link 631 and the second link 632 is located lower than the bar 611, the second connection point with the lid fixing part 332 is located lower than the first connection point, and the third connection point between the second link 632 and the third link 633 is located higher than the bar 611. Furthermore, the second link 632 has a portion whose outline is formed in a V-shape or a U-shape to avoid contact with the bar 611.

[0031] A heat-resistant air tube extends from cylinder body 621 through a through-hole in case 613, through flexible tube 616, and out of container 30. Outside container 30, it extends from end 45A of container support part 45 to the shaft mounting side, and is further connected to adjustment part 121, which will be described later.

[0032] (First lifting device 40) As shown in Figure 2, the first lifting device 40 includes a first motor 41 mounted on the second support frame 12, a main shaft 42 extending horizontally and rotated by the first motor 41, a driven shaft 43 mounted coaxially with the main shaft 42, a clutch 44 which transmits and cuts off power from the main shaft 42 to the driven shaft 43, and a pair of rod-shaped container support portions 45 which are mounted parallel to one end and the other end of the driven shaft 43 and have shaft insertion portions 451 fixed thereto.

[0033] As shown in Figure 3(a), the second support frame 12 comprises a rod-shaped driving support leg 12A that rises from the work floor and supports the first prime mover 41, etc., a pair of rod-shaped driven side support legs 12B that rise away from the work floor and support the driven shaft 43, a rod-shaped connecting portion 12C that connects the driving support leg 12A to one of the driven side support legs 12B, and a connecting portion 12D that connects one of the driven side support legs 12B to the other driven side support leg 12B.

[0034] A case 12E is provided at the upper end of drive support leg 12A. A first prime mover 41 is fixed to the outside of a side surface of case 12E, and a main shaft 42 protrudes from first prime mover 41 into the inside of case 12E and is connected to a clutch 44 housed in case 12E. Note that in Figures 2 and 3, the outer shape of case 12E is shown by a two-dot chain line, and the main shaft 42 and other components are shown in a see-through manner by a solid line. First prime mover 41 is configured as, for example, a geared motor, and has a reducer 415 that houses a gear, and main shaft 42 as a drive shaft extends laterally from reducer 415 toward inside case 12E.

[0035] A mounting plate and a bearing portion 12F such as a bearing fixed thereto are provided on the driven-side support leg 12B, and support both ends of the driven shaft 43. The driven shaft 43 is held at a position higher than the oil tank 20 and the first support frame 11.

[0036] A container support portion 45 is fixed to the driven shaft 43 near the bearing portion 12F, and one end 45A of the container support portion 45 supports the container 30, and the other end 45B supports the balance weight 46. A shaft insertion portion 451 is provided between these ends 45A and 45B, through which the driven shaft 43 passes and fixes the container support portion 45 to the driven shaft 43. The driven shaft 43 passes through the shaft insertion portion 451, and each container support portion 45 and the driven shaft 43 are arranged perpendicular to each other. Furthermore, the spacing between the container support portions 45 is set wider than the spacing between the oil vat 20 and the enclosure portion 11D of the first support frame 11.

[0037] 2, end 45A on the side supporting container 30 is provided with bearing portion 452 such as a bearing, and bearing portion 452 supports one end side of connecting shaft 453 provided in parallel with driven shaft 43, and the other end side of connecting shaft 453 is connected to container 30. In container 30, a bearing portion for the shaft is provided in the connection body.

[0038] A conventional commercially available clutch can be used as the clutch 44, and it may be electromagnetic, pneumatic, or mechanical. Hereinafter, the state in which power is transmitted from the main shaft 42 to the driven shaft 43 by the clutch 44 may be referred to as the connection between the main shaft 42 and the driven shaft 43, and the state in which power is not transmitted may be referred to as the disconnection between the main shaft 42 and the driven shaft 43.

[0039] (Second lifting device 50) As shown in Figure 3(a), the second lifting device 50 includes a second prime mover 51 provided below the oil vat 20, a shaft 52 provided below the oil vat 20 parallel to the driven shaft 43 of the first lifting device 40, and having both ends 52A, 52B protruding outward beyond the oil vat 20 and the first support frame 11, and a reciprocating slider crank mechanism 53 provided at both ends 52A, 52B of the shaft 52.

[0040] The second prime mover 51 is mounted on a mounting plate 11E provided on the first support frame 11, and the shaft 52 is supported at both ends by bearing portions 11F provided on the mounting plate 11E, and the drive shaft of the second prime mover 51 and the shaft 52 are connected by a sprocket and a chain.

[0041] Each reciprocating slider crank mechanism 53 includes a plate-shaped crank 531 provided on end portions 52A, 52B of shaft 52, a rod-shaped link member 533 attached via a ball joint to a connecting shaft 532 protruding outward from crank 531, and a rod-shaped slider 535 attached to the lower end portion of link member 533 via a ball joint at the other end and supported by a guide 534 provided on first support frame 11. Note that instead of plate-shaped crank 531, a rod-shaped member or other shape may be used.

[0042] The connecting shaft 532 provided on the crank 531 is provided away from the center C1 of rotation of the crank 531 and is provided parallel to the driven shaft 43. As shown in FIG. 3(b), the crank 531 has three mounting holes 531a for the connecting shaft that are at different distances from the center of rotation, and the second lifting device 50 is configured to be able to mount three link members 533 of different lengths. By changing the mounting position of the connecting shaft 532 and replacing the link member 533, the distance that the slider 535 moves up and down can be changed.

[0043] The guide 534 includes brackets 534A fixed to the first support frame 11 and aligned vertically, and bearings 534B provided on each bracket 534A and spaced apart vertically. The slider 535 is extended vertically by the guide 534, and reciprocates vertically as the crank 531 rotates.

[0044] The crank 531, link member 533, slider 535, and guide 534 protrude outward beyond the first support frame 11 and are covered by a cover 54. The cover 54 is removably attached to the first support frame 11 with screws or the like. The upper end of the cover 54 has an opening, and the upper end 535A of the slider 535 passes through the opening and protrudes above the cover 54. As will be described later, the fryer 1 is configured so that the upper end 535A of the slider 535 abuts against the end 45A of the container support part 45, and it is preferable to provide an elastic member on the slider 535 or the container support part 45. For example, a plate-shaped elastic member 454 made of rubber is provided on the end 45A of the container support part 45.

[0045] (Discharge device 70) As shown in Figure 4, the discharge device 70 includes a discharge chute 71 supported by a first support frame 11 and a second support frame 12, and a discharge mechanism 72 that moves the container 30 above the discharge chute 71 to discharge the rice cracker dough from the container 30.

[0046] The discharge mechanism 72 includes an air cylinder 73 for discharging dough, a rotating member 74 connected to the tip of the rod 732 of the air cylinder 73 for discharging dough and attached to the driven shaft 43, and a rod-shaped discharge link 75 having one end connected to the rotating member 74 and the other end connected to the connection part 32 of the container 30.

[0047] The cylinder body 731 of the dough-discharging air cylinder 73 is supported by a shaft provided on the second support frame 12 and is provided lower than the driven shaft 43. The shaft that forms the center of rotation of the cylinder body 731 extends parallel to the driven shaft 43.

[0048] The rotary member 74 includes a rotary main body 741 attached to the driven shaft 43 and a plate-shaped protruding portion 742 protruding from the rotary main body 741 .

[0049] The rotating main body 741 has a bearing 741A such as a bearing, and the protruding part 742 has two shafts extending parallel to the driven shaft 43. The tip of the dough discharge air cylinder 73 is attached to one of the shafts of the protruding part 742 via a ball joint or the like, and one end of the discharge link 75 is attached to the other shaft via a ball joint or the like.

[0050] The control unit 80 is configured as an electronic computer having a program, a storage device such as a memory or a hard disk for storing the program, and an arithmetic processing unit, and executes the program to control the operations of the first prime mover 41, the clutch 44, the second prime mover 51, the lid opening / closing air cylinder 62, and the dough discharge air cylinder 73.

[0051] (operation) Explain how to use flyer 1. 7 is a diagram showing the manufacturing process for one batch, in which a predetermined amount of rice cracker dough is handled at one time in the container 30. The manufacturing process includes a loading step of putting the rice cracker dough into the container 30, a frying step of frying the rice cracker dough, a first moving step of moving the container 30 to a frying position, a draining step of draining oil from the rice cracker dough, a second moving step of moving the container 30 to a discharging position, a discharging step of discharging the fried rice cracker dough from the device, a return step of returning the container 30 to its original state after the rice cracker dough has been discharged, and a third moving step of returning the container 30 to its origin position within the oil vat 20. In the fryer 1 of this embodiment, as shown in FIG. 8(a), the frying position where the container 30 enters the oil vat 20 is defined as the starting position of one batch of manufacturing process, and rice crackers are manufactured.

[0052] (Feeding process) During the charging process, the main shaft 42 and the driven shaft 43 are disconnected by the clutch 44. As shown in FIG. 8(a), the end 45A of the container support part 45 is supported by the upper end 535A of the slider 535 of the second lifting device 50, maintaining the container support part 45 in a tilted position. In the container 30 placed in the oil tank 20, the movable lid part 334 is maintained in a tilted position by the lid opening / closing device 60, and the dough entrance / exit 335 is open. In this state, the rice cracker dough 2 is transported by the supply belt conveyor 81 and falls from the charging chute 82 toward the dough entrance / exit 335, entering the container 30. Note that during the charging process, the rod 732 of the dough discharge air cylinder 73 is in an extended state.

[0053] (Frying process) The frying process is performed in the same manner as the feeding process, with the main shaft 42 and the driven shaft 43 separated by the clutch 44. First, as shown in Fig. 8(b), the control unit 80 controls the lid opening / closing air cylinder 62 of the lid opening / closing device 60 to move the lid movable part 334 to close the dough inlet / outlet 335. Next, the control unit 80 controls the second lifting device 50 to start moving the container 30 up and down. As shown in FIG. 9( a), the second lifting device 50 starts moving the container 30 up and down from a state in which the slider 535 is at bottom dead center, with the upper end 535A of the slider 535 being pushed by the end 45A of the container support part 45. The link member 533 is also at its lowest position around the center of rotation of the crank 531. When the second prime mover 51 starts from this state, as shown in FIGS. 9( b) and 9( c), as the shaft 52 and crank 531 rotate, the link member 533 connected to the shaft 52 via the connecting shaft 532 and the slider 535 connected to the link member 533 rise, and the upper end 535A of the slider 535 pushes the end 45A of the container support part 45 from below. This moves the container support part 45 around the driven shaft 43, and the container 30 rises. Furthermore, as shown in FIG. 9(d), at the top dead center of the slider 535, the length of the slider 535 protruding from the cover 54 is at its longest, and the container 30 also reaches its highest position during the frying process. Furthermore, as the shaft 52 and crank 531 rotate, the slider 535, the end 45A of the container support portion 45, and the container 30 descend to their original low positions as shown in FIG. 9(a). This cycle of rising and falling is repeated for the number of crank rotations during the frying process. The container 30 moves up and down, for example, with at least a portion of the container bottom 311 immersed in oil, and the rice cracker dough 2 also moves within the container 30, causing the entire surface to be heated by the oil. The container 30 moves up and down with the lid 33 parallel to the oil surface. The control unit 80 stops the second motor 51 after a predetermined time has elapsed since the start of the second motor 51. With the second motor 51 stopped, the slider 535 is positioned at the bottom dead center, and the frying process ends. Even during the frying process, the rod 732 of the dough-discharging air cylinder 73 remains extended.

[0054] (First transfer process and oil draining process) In the first movement step, the control unit 80 first connects the main shaft 42 and the driven shaft 43 with the clutch 44. Next, as shown in Figure 8(c), the first lifting device 40 moves the container support part 45, and the container 30 moves from the frying position to the oil-draining position. In the oil-draining step, the first lifting device 40 holds the container 30 suspended above the oil vat 20, and drops the fried rice cracker dough and oil adhering to the container 30 into the oil vat 20. In the first movement step and the oil-draining step, the rod 732 of the dough-discharging air cylinder 73 is in an extended state.

[0055] (Second transfer process and discharge process) In the second movement step, as shown in Figure 8(d), the first lifting device 40 moves the container support part 45, and the container 30 moves from the oil-scraping position to the discharge position. In the discharge step, while the container support part 45 holds the container 30 above the discharge chute 71, the dough discharge air cylinder 73 retracts the rod 732, moving the rotating member 74 attached to the driven shaft 43, the discharge link 75, and the connection part 32 of the container 30. The container 30 moves around the connection shaft 453 supported by the end part 45A of the container support part 45, and as the overall length of the dough discharge air cylinder 73 shortens, the inclination of the container 30 increases. As shown in Figure 8(e), the dough discharge air cylinder 73 changes the position of the container 30 around its axis until the container 30 is turned sideways. On the way to this final position, the lid opening / closing air cylinder 62 of the lid opening / closing device 60 moves the movable lid 33 to open the dough entrance / exit 335, and the fried rice cracker dough 2 passes through the dough entrance / exit 335 and falls into the discharge chute 71. The rice cracker dough 2 then travels down the discharge chute 71 and is transferred to the discharge belt conveyor 85, where it is sent to the next seasoning process.

[0056] (Return process and third movement process) In the return process, the dough discharge air cylinder 73 extends the rod 732, which is the opposite operation to the discharge process, returning the container 30 to its original suspended position with its mouth facing upward. Next, in the third movement process, the lid opening / closing air cylinder 62 tilts the movable lid part 334 to open the dough inlet / outlet 335, and the container support part 45 moves, moving the container 30 from the discharge position to the frying position. When the container support part 45 is tilted, the container 30 enters the oil tank 20, and the end part 45A of the container support part 45 rests on the upper end part 535A of the slider 535. When the sensor detects that the crank 531 or connecting shaft 532 is at the lowest position with the slider 535 at the bottom dead center, the control part 80 disengages the main shaft 42 from the driven shaft 43 using the clutch 44, and the third movement process ends.

[0057] According to the fryer 1 of this embodiment, during the loading process and the frying process, the transmission of power between the first motor 41 and the container support unit 45 driven by the first motor 41 is decoupled by the clutch 44. During the frying process, end portions 45A of the pair of container support units 45 supporting the container 30 can move up and down by the reciprocating motion of sliders 535 of the second lifting device 50 provided below. The container 30 can be reliably moved up and down within the preset movable distance of the slider 535.

[0058] Compared to this embodiment, if the container 30 is moved up and down by the container support part 45 without relying on the second lifting device 50, if an error occurs in the rotation angle of the main shaft 42, the position of the container 30 on the end part 45A of the container support part 45 may deviate significantly from the initial setting, which is undesirable. The crank 531 of the reciprocating slider crank mechanism 53 has multiple mounting holes 531a, which allows the mounting position of the connecting shaft 532 to be changed, and is configured to be replaceable with link members 533 of different lengths, making it easy to change the up and down stroke of the container 30 during the frying process. Since the reciprocating slider crank mechanism 53 is covered with the cover 54, the operator can be prevented from coming into contact with the reciprocating slider crank mechanism 53.

[0059] (First Modification) A fryer 1A according to a first modified embodiment of the present invention is different from the fryer 1 according to the above embodiment in the configuration of a first lifting device 40A.

[0060] As shown in Figure 10(a), the first lifting device 40A, like the first lifting device 40, is equipped with a first motor 41, a main shaft 42, a driven shaft 43, and a container support part 45, and the clutch 44A connecting the main shaft 42 and the driven shaft 43 is configured to be pneumatic.Furthermore, the first lifting device 40A is equipped with a descent suppression part 47 that suppresses the descent of the container 30 when the clutch 44A is in an unpneumatic pressure state that occurs when the container 30 is held at a position higher than the lifting position by the container support part 45 or while the container 30 is moving by the container support part 45.

[0061] As shown in Figure 11(a), the air supply system 100 of the fryer 1A includes a primary side pipe 110 that runs from an air supply unit 101 such as a compressor to the clutch 44A, and a secondary side pipe 120 that branches off from the primary side pipe 110 and runs to the air cylinder 62 for opening and closing the lid and the air cylinder 73 for discharging the dough. First, we will explain the primary side piping 110. The primary side piping 110 has an air storage unit 112 that stores compressed air from the air supply unit 101 downstream of a pipe joint 111 that connects the secondary side piping 120, and a branching pipe joint 113 downstream of this air storage unit 112, with tubes 114A and 114B extending to the clutch 44A side and the descent suppression unit 47 side. Note that a check valve 115 that prevents backflow may be provided between the pipe joint 111 and the air storage unit 112.

[0062] A commercially available air clutch can be used as the clutch 44A, such as the "Tooth-Type Air Clutch (CTHP Type)" manufactured by Asahi Seiko Co., Ltd. The air clutch includes a rotatable hub, a drive disk rotatably mounted on the outside of the hub, and a cylinder that supports these components. In this embodiment, the cylinder of the air clutch is fixed to the bottom of the case via bracket 12G, and clutch 44A is housed in case 12E. One end of the main shaft 42 is fixed to the hub, and one end of the driven shaft 43 is fixed to the drive disk, and air at a predetermined pressure is supplied to the clutch 44A from an air supply unit 101 such as a compressor via a clutch solenoid valve 116. The clutch solenoid valve 116 is provided at a port of the cylinder of the clutch 44A, and the control unit 80 controls the clutch solenoid valve 116 to switch the state of the clutch 44A.

[0063] When compressed air from the air supply unit 101 flows into the clutch 44A, the clutch 44A connects the main shaft 42 and the driven shaft 43. In this connected state, the container support unit 45 can be moved to any of the following positions: an oil tank position where the container 30 is placed in the oil tank 20; an oil draining position where the container 30 is positioned above the oil tank 20; and a discharge position where the container 30 is positioned above the discharge chute 71.

[0064] A three-port, two-position directional control type is used as the clutch solenoid valve 116. As shown in Figure 11(a), before the clutch solenoid valve 116 is energized, the first port A1 connected to the tube 114A on the air supply unit 101 side is blocked, and a flow path to the second port A2, which is open to the outside, and the third port A3, which is connected to the clutch 44A, is formed within the clutch solenoid valve 116. As shown in Figure 11(b), when the clutch solenoid valve 116 is energized, a flow path to the first port A1, which is connected to the tube 114A on the air supply unit 101 side, and the third port A3, which is connected to the clutch 44A, is formed within the clutch solenoid valve 116, and the second port A2, which is open to the outside, is blocked.

[0065] As shown in FIGS. 10(a) and 10(b), the descent suppression part 47 includes a plate part 471 that protrudes outward from the drive disk of the clutch 44A and has a plurality of holes 471A that are opened at intervals of a predetermined angle θ around the center C2 of rotation, a descent suppression air cylinder 472 that is provided on the second support frame 12 and faces the plate part 471, and a descent suppression valve 472B that controls the inflow of air into a cylinder body 472A of the descent suppression air cylinder 472. restraint The air supplying device 470 includes an electromagnetic valve 473 and the air storage unit 112.

[0066] The air cylinder 472 for suppressing descent has a piston 472B that slides inside the cylinder body 472A, a rod 472C fixed to the piston 472B, and a spring (not shown) housed inside the cylinder body 472A, and is configured so that air flowing in from a port provided in the cylinder body 472A moves the piston 472B and pushes the rod 472C out of the cylinder body 472A, and when the air pressure is released the pushed-out part of the rod 472C is returned to the cylinder body 472A by the bias of the spring.

[0067] descent restraint The solenoid valve 473 is provided at the port of the air cylinder 472 for suppressing the downward movement. restraint The electromagnetic valve 473 may be a three-port, two-position directional control type. As shown in Figure 11(a), restraint Before the solenoid valve 473 is excited, the first port B1 that is open to the outside is closed, and the flow path from the second port B2 connected to the tube 114B on the air supply unit 101 side to the third port connected to the air cylinder 472 for suppressing downward movement is opened. restraint The solenoid valve 473 is formed in the downward direction as shown in FIG. restraint When the solenoid valve 473 is energized, the flow path from the first port B1, which is open to the outside, to the third port B3 on the side of the air cylinder 472 for suppressing downward movement is downward. restraint The second port B2 formed in the electromagnetic valve 473 and connected to the tube 114B on the air supply unit 101 side is restraint The solenoid valve 473 is shut off.

[0068] The air cylinder 472 for suppressing descent is supported by the bracket 12H fixed to the bottom of the case, and the plate part 471 and the descent restraint The clutch solenoid valve 473 and the clutch solenoid valve 116 are housed in a case 12E of the second support frame 12. A vent hole 12L is provided in this case 12E.

[0069] Next, the secondary piping 120 of the air supply system 100 has an adjustment unit 121 provided downstream of a pipe joint 111 branching off from the primary piping 110. Under the control of the control unit 80, the adjustment unit 121 controls the inflow and outflow of air into the tubes leading to the lid opening / closing air cylinders 62 and the dough discharging air cylinder 73. Unlike the descent suppression air cylinder 472, the lid opening / closing air cylinder 62 and the dough discharging air cylinder 73 are each configured as a two-port type, and although not shown, two tubes extend from the adjustment unit 121 to the descent suppression air cylinder 472.

[0070] When carrying out the rice cracker dough manufacturing process, the control unit 80 controls the energization of the clutch solenoid valve 116 to switch the connection state between the main shaft 42 and the driven shaft 43 in the clutch 44A. Specifically, during the feeding process and the frying process, the clutch solenoid valve 116 is in a non-energized state by not being energized, which causes the clutch 44A to separate the main shaft 42 and the driven shaft 43, and the feeding process and the like are carried out in this separated state. On the other hand, during the third movement process following the first movement process, the clutch solenoid valve 116 is in an energized excited state by being energized, which causes the clutch 44A to connect the main shaft 42 and the driven shaft 43, and the first movement process and the like are carried out in this connected state. Furthermore, during the rice cracker dough manufacturing process, the descending restraint The electromagnetic valve 473 is maintained in an excited state, and the inflow of air from the air supply unit 101 to the downward movement suppression unit 47 is blocked. The control unit 80 controls the clutch solenoid valve 116 and restraint The control of the power solenoid valve 473 and the control of the first prime mover 41 and / or the control of the second prime mover 51 are performed in parallel.

[0071] The operation of the descent suppression unit 47 provided in the fryer 1A will be described below using as an example a case where a power outage occurs while the first lifting device 40A is moving the container 30 from the oil-sink position to the discharge position. When fryer 1A is de-energized, clutch solenoid valve 116 connected to clutch 44A is de-energized as shown in Figure 11(a), first port A1 is closed, air supply from air supply unit 101 is cut off, and main shaft 42 and driven shaft 43 are separated by clutch 44A. As a result, a downward force is applied to container 30 and container support unit 45 that supports it due to their own weight.

[0072] Also, when the flyer 1A is de-energized, it descends as shown in Figure 11(a). restraint The solenoid valve 473 is de-energized, and the flow path connecting the second port B2 on the air supply unit 101 side to the descent suppression air cylinder 472 is lowered. restraint The compressed air formed within the solenoid valve 473 and remaining in the air storage section 112 causes air to flow from the air supply section 101 side into the inside of the air cylinder 472 for suppressing descent, pushing the rod 472C outward, and the rod 472C enters one of the holes 471A in the plate section 471 as shown by the two-dot chain line in Figure 11(a).

[0073] Even if rod 472C hits a portion of plate portion 471 between holes 471A and 471A and does not enter hole 471A, the air pressure remaining in the air supply system continues to push rod 472C against hole 471A in plate portion 471, causing rod 472C to enter moving hole 471A.

[0074] When the rod 472C enters the hole 471A of the plate portion 471, the rotation of the drive disk of the clutch 44A stops, and the container support portion 45 and the container 30 are held at that rotation angle position.

[0075] As described above, according to the fryer 1A of this embodiment, even if the pneumatic clutch 44A is de-energized while the container 30 is being moved or held at a position higher than the lifting position, such as the discharge position, with the main shaft 42 and driven shaft 43 connected by the pneumatic clutch 44A, the rod 472C protrudes from the descent-suppressing air cylinder 472 and enters the hole 471A in the plate portion 471 of the rotating clutch 44A, stopping the movement of the drive disk of the clutch 44A. This prevents the container 30 from descending.

[0076] (Second Modification) In the fryer 1A' of the second modified embodiment of the present invention, the control unit 80 controls the second lifting device 50 differently from the fryer 1 of the previous embodiment. At the start of the production process for one batch, the container 30 is at the bottom dead center together with the slider 535, and the control unit 80 controls the second lifting device 50 to move the container 30 a predetermined distance above the bottom dead center, and the rice cracker dough 2 is poured into the container 30 while the container 30 is held in the pouring position as shown in Figure 12(a). In Figure 12(a), the container 30 is represented by a two-dot chain line.

[0077] The container 30 is moved to the loading position while the clutch 44 disconnects the main shaft 42 and the driven shaft 43. The second lifting device 50 raises the slider 535 located at the lower starting point, moving the lid 33 above the oil level 20A, and the lid fixing part 332 and the lid operating part 334 of the lid 33 tilt to hold the open dough inlet / outlet 335 at a position higher than the oil level 20A. Note that in Figure 12(b), the oil in the oil tank 20 is represented by hatching. In this state, the rice cracker dough 2 is transported by the supply belt conveyor 81 and drops from the loading chute 82 toward the dough inlet / outlet 335 and into the container 30.

[0078] After the rice cracker dough 2 has been poured in, the second lifting device 50 holds the container 30 in the pouring position, and the lid opening / closing device 60 moves the movable lid part 334 to close the dough entrance / exit 335. In Figure 12(b), the lid 33 that closes the dough entrance / exit 335 is shown by a two-dot chain line. After the dough entrance / exit 335 is closed by the movable lid part 334, the second lifting device 50 starts the reciprocating motion (frying process) of the slider 535, which causes the rice cracker dough 2 to move inside the container 30 and thoroughly heat the entire surface.

[0079] In this way, with the fryer 1A' of the second modified example, during the pouring process, the second lifting device 50 holds the lid 33 of the container 30 at a pouring position higher than the oil level 20A of the oil tank 20, and the rice cracker dough 2 can be poured into the container 30 without losing its shape. In contrast to the second modified example, if the closed position of the lid is at the oil level 20A, for example, after the rice cracker dough 2 has been poured in, the rice cracker dough 2 may be pinched and crushed between the container body 31 and the lid 33 when the dough inlet / outlet 335 is closed with the movable lid part 334.

[0080] The present invention can be practiced in ways other than the above-described embodiments. For example, in a first modified example, an electromagnetic clutch or the like can be used instead of the pneumatic clutch. In this case, plate portion 471 is provided on the driven shaft side of the electromagnetic clutch, and when the state changes to non-excitation, descent suppression portion 472 is activated to suppress the descent of the container. As an air supply system for supplying air to descending suppression section 472, a cylinder storing compressed air may be used as an air storage section, without providing an air supply section such as a compressor. It is also possible to use a clutch type that connects the main shaft and the driven shaft in a non-energized state. In the embodiment, the tip of the container support part is exemplified as the abutment part of the container support part against which the slider abuts, but a plate that abuts against the container or that protrudes from the container support part or the container may also be used as the abutment part. The drive shaft of the first prime mover may be connected to the clutch without a reducer having a gear. The hole provided in the plate portion of the downward movement suppressing portion is not limited to a shape that penetrates the plate portion as shown in the figure, but may be formed as a recessed portion. [Explanation of symbols]

[0081] 1 Flyer 20 Oil tank 201 mouth 30 containers 311A Through hole 40 First lifting device 41 First prime mover 42 Main axis 43 Driven axis 44,44A Clutch 45 Container support part 45A end 454 Male members 47 Lowering suppressor 471 Plate section 472 Air cylinder for suppressing descent 473 Solenoid valve for suppressing downward movement 50 Second lifting device 51 Second engine 52 Shaft 52A end 53 Reciprocating slider crank mechanism 531 Crank 532 connecting shaft 533 Link member 534 Guide 535 Slider 535A End 54 Cover 60 Lid opening and closing device 70 Ejector 80 Control Unit 100 Air supply system 101 Air supply unit 110 Primary side piping 112 Tank 115 Check valve 116 Clutch solenoid valve 120 Secondary piping C center θ interval (angle)

Claims

1. a first lifting device that lifts and lowers a container, which has a container body with a plurality of through holes at least in a portion thereof and a lid that can be opened and closed, while supporting the container at the ends of a pair of rod-shaped container support parts, to a frying position where the container is placed in an oil tank and to a discharge position away from the frying position; a second lifting device that moves the end of the container support part up and down using a slider of a reciprocating slider crank mechanism while the container is in the oil tank; the first lifting device is provided with a clutch that transmits and cuts off power from a drive shaft on the first motor side to a driven shaft to which the container support part is fixed, A fryer characterized in that the second lifting device moves the end of the container support part up and down while the clutch interrupts the transmission of power from the drive shaft to the driven shaft.

2. 2. The flyer according to claim 1, wherein the reciprocating slider crank mechanism comprises a link member connected to the slider and a crank connected to the link member via a connecting shaft, and the crank is further provided with a plurality of mounting holes for mounting the connecting shaft, so that the link members of different lengths can be replaced.

3. 2. The fryer according to claim 1, further comprising a reducer provided between the first motor and the drive shaft.

4. The lid comprises a lid fixing part provided on the inside of the container body and a lid movable part attached to the lid fixing part via a hinge, 2. The fryer according to claim 1, further comprising a lid opening / closing device that is provided at a position higher than the lid on the container and that opens and closes the lid movable part.

5. a support frame that supports the oil tank, the first lifting device, and the second lifting device; and a cover that covers the reciprocating slider-crank mechanism and that protrudes outward from the support frame, 2. The fryer of claim 1, wherein the slider projects upwardly from the cover.

6. 2. The fryer according to claim 1, wherein the slider abuts against the end of the container support portion via an elastic member.

7. The clutch is configured as a pneumatic or electromagnetic type that cuts off the transmission of power from the drive shaft to the driven shaft in a non-pneumatic or non-excited state, a descending suppression unit that suppresses a descending of the container during operation in accordance with a change of the clutch to the non-pneumatic state or the non-excited state, and a control unit that controls the clutch and the descending suppression unit, the descent suppression unit includes a plate portion provided on the driven shaft side of the clutch and having a plurality of holes around the center of rotation of the driven shaft, a descent suppression air cylinder facing the plate portion, an air storage portion that stores compressed air, and a descent suppression solenoid valve that allows the air to flow from the air storage portion into the descent suppression air cylinder when the fryer is in a non-energized state; The control unit controls the clutch and the descent suppression solenoid valve in parallel while the fryer is energized, 7. The fryer of claim 1, wherein when the fryer changes from the energized state to the de-energized state, the clutch changes to the unpressurized state or the unexcited state, and the air flows from the air storage section through the descent suppression solenoid valve into the descent suppression air cylinder, causing the rod to be pushed out of the cylinder body and enter one of the holes in the plate section.

8. The clutch is configured as an air pressure type that cuts off the transmission of power from the drive shaft to the driven shaft in a non-air pressure state, an air supply system that supplies compressed air to the clutch; a descending suppression unit that suppresses a descending of the container during operation accompanying a change of the clutch to the non-air pressure state; a control unit that controls the clutch and the descent suppression unit, the air supply system includes an air supply unit that delivers the air, a check valve that prevents the air from flowing back into the air supply unit, an air storage unit that is provided downstream of the check valve and that stores the air from the air supply unit, and a three-port two-position directional control solenoid valve for a clutch that is connected to the air storage unit via a branch unit and is also connected to the clutch, In the clutch solenoid valve, one port is open to the outside, and a flow path is formed from the air supply unit side to the clutch side when it is energized, and a flow path is formed from the clutch side to the outside when it is not energized, the descent suppression unit includes a plate portion provided on the driven shaft side of the clutch and having a plurality of holes around the center of rotation of the driven shaft, a descent suppression air cylinder facing the plate portion, and a 3-port 2-position directional control type descent suppression solenoid valve connected to the air storage unit via the branch portion and connected to the descent suppression air cylinder, In the descent suppression solenoid valve, one port is open toward the outside, and in an excited state, a flow path is formed from the descent suppression air cylinder to the outside of the descent suppression solenoid valve, and in a non-excited state, a flow path is formed from the air supply system to the descent suppression air cylinder, The control unit controls the descent suppression solenoid valve and the clutch solenoid valve in parallel while the fryer is energized, 7. A fryer as described in any one of claims 1 to 6, characterized in that when the fryer changes from the energized state to the de-energized state, the excited state of the clutch solenoid valve changes to the de-energized state of the clutch solenoid valve, the excited state of the descent suppression solenoid valve changes to the de-energized state of the descent suppression solenoid valve, and the clutch changes to the non-air-pressure state, and further the air flows from the air storage section through the descent suppression solenoid valve into the descent suppression air cylinder, causing the rod to be pushed out of the cylinder body and enter one of the holes in the plate section.

9. The clutch is configured as a pneumatic type that cuts off the transmission of power from the drive shaft to the driven shaft in a non-pneumatic state, an air supply system that supplies compressed air to the clutch; a descending suppression unit that suppresses a descending of the container during operation accompanying a change of the clutch to the non-air pressure state; a control unit that controls the clutch and the descent suppression unit, the air supply system includes an air supply unit that delivers the air, a check valve that prevents the air from flowing back into the air supply unit, an air storage unit that is provided downstream of the check valve and that stores the air from the air supply unit, and a three-port two-position directional control solenoid valve for a clutch that is connected to the air storage unit via a branch unit and is also connected to the clutch, In the clutch solenoid valve, one port is open to the outside, and a flow path is formed from the air supply unit side to the clutch side when it is energized, and a flow path is formed from the clutch side to the outside when it is not energized, the descent suppression unit includes a plate portion provided on the driven shaft side of the clutch and having a plurality of holes around the center of rotation of the driven shaft, a descent suppression air cylinder facing the plate portion, and a 3-port 2-position directional control type descent suppression solenoid valve connected to the air storage unit via the branch portion and connected to the descent suppression air cylinder, In the descent suppression solenoid valve, one port is open toward the outside, and in an excited state, a flow path is formed from the descent suppression air cylinder to the outside of the descent suppression solenoid valve, and in a non-excited state, a flow path is formed from the air supply system to the descent suppression air cylinder, The control unit controls the descent suppression solenoid valve and the clutch solenoid valve in parallel while the fryer is energized, When the flyer changes from the energized state to the de-energized state, the excited state of the clutch solenoid valve changes to the de-energized state of the clutch solenoid valve, the excited state of the descent suppression solenoid valve changes to the de-energized state of the descent suppression solenoid valve, and the clutch changes to the non-air-pressure state, and further the air flows from the air storage section through the descent suppression solenoid valve into the descent suppression air cylinder, causing the rod to be pushed out of the cylinder body and enter one of the holes in the plate section, a case that accommodates the clutch, the clutch electromagnetic valve, the plate portion, and the descent suppression electromagnetic valve, The fryer according to any one of claims 1 to 6, wherein the case has a ventilation hole.

10. A step of placing a rice cracker dough in an oil tank while the container has a container body having a plurality of through holes at least in part and a lid separating the container into upper and lower parts; A frying step of placing the container in the oil tank and heating the rice cracker dough; A discharge step of disposing the container at a discharge position outside the oil tank and discharging the fried rice cracker dough from the container, A method for producing rice snacks, wherein a first lifting device lifts and lowers the container supported by the ends of a pair of rod-shaped container support parts to a frying position where the container is placed in the oil tank and to a discharge position away from the frying position, A method for producing rice crackers, characterized in that in the frying process, the clutch of the first lifting device cuts off the transmission of power from the drive shaft on the first motor side to the driven shaft to which the container support part is fixed, and the end part of the container support part is placed on the upper end part of the slider of the second lifting device, and with the container in the oil tank, the second motor side of the second lifting device causes the slider to move up and down in a reciprocating motion, thereby moving the end part of the container support part and the container up and down.

11. The lid comprises a lid fixing part provided on the inside of the container body and a lid movable part attached to the lid fixing part via a hinge, In the pouring step, the clutch interrupts the transmission of power from the drive shaft to the driven shaft, and the end of the container support part is placed on the upper end of the slider. With the container in the oil tank, the slider at the bottom dead center is raised by the second motor to hold the container in the pouring position. A lid opening / closing device provided on the container at a position higher than the lid moves the lid movable part to open a dough inlet / outlet, and then the rice cracker dough is poured into the dough inlet / outlet located above the oil surface. The method for producing rice snacks according to claim 10, characterized in that after the rice snack dough is poured, the lid opening / closing device moves the lid movable part to close the dough inlet / outlet while the container is held in the pouring position by the slider.

Images