JP5214399B2 - Seaweed adsorption mechanism of seaweed roll forming device - Google Patents

Description

  The present invention relates to a laver adsorbing mechanism of a laver roll forming apparatus that automates the production of so-called warship rolls, band rolls, etc., in which a laver sheet is wound around a shaped cooked rice on which sushi material such as sea urchin is placed.

  2. Description of the Related Art Conventionally, there has been provided a technique that is a laver winding forming mechanism of a laver winding apparatus as shown in Patent Document 1 filed by the applicant of the present application. In this case, the seaweed adsorption mechanism is a sheet-like seaweed that has been cut to the required dimensions in advance from the laver hopper, one by one with an adsorption pad, and this is fed to the turntable on the supply side of the formed cooked rice with the feed mechanism To supply.

  This suction pad is formed in a substantially rectangular casing shape, and air is sucked from the suction port of the base through the suction pad by the blower and directed toward the opening side of the nori hopper so as to adsorb the sheet-like nori. A cavity having a plurality of branch paths is formed.

In addition, a substantially L-shaped inlet cover is provided so that the cavity opening side of the cavity, that is, the cavity opening on the front side of the suction pad is closed with an upright piece and the inlet is closed with a horizontal piece. In addition, a substantially L-shaped intake cover is also provided on the rear side of the suction pad symmetrically with the intake cover.
JP 2006-81505 A

  However, the conventional suction pad has a plurality of branch paths directed to the opening side of the laver hopper so that air is sucked from the suction port of the base through the suction pad by the blower and sucks the sheet-like seaweed. Therefore, when the drive motor of the blower continues to rotate at a constant speed, the vibration noise of the drive motor and the wind noise of the blower are generated as a large noise around the outside due to the cavity resonance. It has the problem of continuing.

  Therefore, the present invention has been devised in view of the existing circumstances as described above, and when the laver adsorption motor continues to rotate at a constant rotation speed, It is an object of the present invention to provide a laver adsorption mechanism for a laver roll forming apparatus that can prevent the wind noise of a blower from continuing to be generated as a large noise around the outside due to cavity resonance.

In order to solve the above-described problems, in the present invention,
A movable gantry with an inlet,
An intake fan that is provided below the intake port of the movable frame and is driven by a laver adsorption motor;
A laver hopper provided on the movable frame;
A laver supply guide having a laver drop hole formed therein, the upper opening of the laver drop hole being disposed on the movable frame, and a sheet-like laver butt against the inward side of the laver drop hole A laver supply guide formed by projecting members,
A suction pad and a suction pad in which a cavity is formed, and a suction pad that is capable of reciprocating on the movable frame, and a laver adsorption mechanism comprising:
The suction pad includes a laver suction position where the sheet-like seaweed of the laver hopper is adsorbed and taken out by the suction nozzle through communication between the suction port of the movable frame and the cavity of the suction pad, and the suction port of the movable frame And the suction pad cavity is closed, and the sheet-like seaweed can be reciprocated between the seaweed supply position that allows the sheet-like seaweed to fall and be supplied to the seaweed dropping hole of the seaweed supply guide,
The suction pad further includes an opening communicating with the inlet of the movable gantry at the laver supply position where the inlet of the movable gantry is opened to the outside air, and a buffer material is accommodated inside the opening. Comprising absorbing the noise of the seaweed adsorption motor by sucking outside air through the buffer material,
The sheet-like seaweed abutting member is brought into contact with the lower edge side of the sheet-like seaweed adsorbed by the suction nozzle of the suction pad at the nori supply position and curved, thereby negative pressure inside the cavity of the suction pad is released, it characterized that you to peel off the layer sheet from the suction pad to.

Sheet over preparative laver the increasing the rotation speed of the motor for seaweed adsorption when adsorbed by the suction pad is further provided with a motor drive control circuit for reducing the rotational speed of the motor for seaweed adsorbed during non-adsorbed.

  According to the present invention, at the suction pad retracted position where the suction port of the movable frame is opened, the suction pad has an opening communicating with the suction port of the movable frame, and the cushioning material for absorbing noise is provided in the opening. Therefore, when the nori adsorption motor continues to rotate at a constant rotation speed, the vibration sound of the nori adsorption motor and the wind noise of the blower are generated by the cavity resonance from the air inlet of the open movable platform. Therefore, it is possible to prevent the noise from being continuously generated by the noise absorbing cushioning material.

  The nori adsorption mechanism has a motor drive control circuit that increases the rotation speed of the nori adsorption motor when adsorbing the sheet-like nori with the adsorption pad and reduces the rotation speed of the nori adsorption motor when it is not adsorbed. When the suction motor continues to rotate at a certain rotation speed, the motor vibration noise and blower wind noise continue to be generated as a large noise around the outside due to cavity resonance from the air inlet of the open movable base. This can be prevented beforehand by the operation of the motor drive control circuit.

The best mode for carrying out the present invention will be described below in detail with reference to the drawings.
A laver roll forming apparatus P according to the present invention is an automated apparatus for winding a sheet-like laver Q around a shaped cooked rice to produce a so-called warship roll or band roll. 1, 2, and 3, a molding part 1 having a feeding hopper H for the shaped cooked rice R at the top, and a substantially semicircle project forward from the lower front side of the molding part 1. The turntable 2 is provided with an intermittently rotating turntable 2 and a laver adsorption mechanism 3 provided on the front side of the molding unit 1 and above the protruding surface of the turntable 2.

  As shown in FIG. 2, the laver adsorption mechanism 3 includes a movable frame 8 on which a laver transport and supply motor 4, an adsorption pad drive motor 5, a laver adsorption motor 6, and a winding drive motor 7 are arranged. The movable gantry 8 can be swung from the position of the front surface of the molding part 1 that covers the projecting surface of the turntable 2 to the side of the molding part 1 that opens the projecting surface of the turntable 2. It arrange | positions via the support stand 9 grade | etc., Provided in the side.

  As shown in FIGS. 4 to 6, a laver hopper 15 provided with a laver transport mechanism 11 on the lower side, and a sheet-like laver Q that has been cut in advance from the laver hopper 15 to the required dimensions are provided on the movable frame 8. Adsorption pad 16 that is picked up and picked up one by one, and vertical nori for feeding the sheet-like seaweed Q picked up by the suction pad 16 so as to drop onto the turntable 2 on the supply side of the shaped cooked rice R And a supply guide 28.

  As shown in FIGS. 3, 4, and 5 (b), the laver transport mechanism 11 includes a pair of bearing frame portions disposed opposite to each other on one side of the upper surface of the movable mount 8, and both ends of the long transport screw 12. The small-diameter transmission gear 13 fitted to one end thereof is meshed with the large-diameter drive gear 14 fitted to the output shaft of the laver conveying and feeding motor 4.

  A laver hopper 15 is installed on the upper side of the conveying screw 12, and a sheet-shaped laver Q push plate 17 is arranged behind the laver hopper 15. A part of the lower side of the pressing plate 17 protrudes downward through the laver hopper 15, and a screw groove formed on the lower surface of the protruding portion of the pressing plate 17 is engaged with the conveying screw 12. Thus, the push plate 17 can slide in the front-rear direction on the laver hopper 15 by the rotation of the conveying screw 12.

  In addition, an opening 19 for taking out the sheet-like nori Q is opened on the front side of the nori hopper 15, and the sheet-like nori Q is vertically disposed on the left and right edges of the opening 19 so as not to accidentally jump out of the nori hopper 15. An orientation roller-like stopper 20 is attached.

In the laver hopper 15, a plurality of strip-shaped laver Q is superposed and accommodated in a horizontally vertical state with the smooth surface side facing the opening 19, and is formed into a sheet by the adsorbing pad 16. The smooth surface side of the laver Q is adsorbed one by one.

  As shown in FIGS. 5A and 5C, a laver sensor 21 is disposed on the side surface of the opening 19 of the laver hopper 15, and the laver sensor 21 detects the degree of adhesion between the sheet-like laver Q. By controlling the slide movement amount of the pressing plate 17 so that the sheet-like seaweed Q has an appropriate density, the sheet-like nori Q is crushed and adhered due to inadvertent and excessive sliding movement of the pressing plate 17. Is to be suppressed.

  As shown in FIGS. 3, 4, and 6, the suction pad 16 is formed in a substantially L-shaped housing in plan view, and the L-shaped base end side is adjacent to the laver transport mechanism 11 of the movable gantry 8. The frame-shaped guide portion 18 can be slid back and forth.

  On the other hand, a plurality of suction nozzles 16 a are arranged in a horizontal row on the inner side of the suction pad 16 on the L-shaped tip side, and are arranged facing the opening 19 of the laver hopper 15.

  Further, on the L-shaped base end side of the suction pad 16, for example, a crank mechanism (not shown) and a connecting rod 18a (not shown) are incorporated as a driving force transmission mechanism 27 provided on one end side of the guide portion 18. The crank mechanism is driven by the suction pad drive motor 5. Thus, the suction pad 16 is slid back and forth along the guide portion 18 via the crank mechanism and the connecting rod 18a by the operation of the suction pad drive motor 5.

  Further, as shown in FIGS. 6 and 7, the suction pad 16 has a cavity S formed from the bottom surface with branch paths of the plurality of suction nozzles 16a directed to the opening 19 side of the laver hopper 15. It is formed so as to make it come. Then, the intake fan 6a is rotated by driving the nori adsorption motor 6 provided in the upper part of the base 22 with the upper and lower two layers arranged on the lower surface side of the movable mount 8, so that the intake port 8a of the movable mount 8 is turned on. Air is sucked through the cavity S of the suction pad 16 and the sheet-like seaweed Q is sucked by the suction pad 16.

  As shown in FIGS. 6A to 6D, FIG. 7A, and FIG. 7B, the lower inner portion of the base 22 has an intake passage 23 and an exhaust port 24 that are horizontally L-shaped. It is a detachable dust box that is partitioned through a partition 25. At the inner bottom of the dust box, the laver debris carried with the air by the intake fan 6a is adsorbed and collected at the inner bottom through the intake passage 23. The water for is stored. Further, a filter 26 for capturing the laver residue is attached to the upper surface of the partition plate 25 on the horizontal plane so that the laver residue is not exhausted from the exhaust port 24 together with the air. At this time, the laver adsorption motor 6 is cooled by the air flow sucked from the adsorption pad 16 side, and the laver residue can be carried to the dust box.

  As shown in FIGS. 6 (a) to 6 (d), the cavity S is formed in a substantially rectangular shape on the bottom surface of the suction pad 16 on the base end side of the L shape, and further, the L shape of the suction pad 16 from the cavity S. It communicates with a plurality of branch paths that penetrate to the tip side.

  Then, as shown in FIGS. 6A to 6D, the suction pad 16 has a guide portion via a driving force transmission mechanism 27 including a crank mechanism and a connecting rod 18a by the operation of the suction pad drive motor 5. 18, when the slide S is reciprocated in the front-rear direction, the laver adsorption position where the cavity S of the suction pad 16 communicates with the intake port 8 a of the movable frame 8, the intake port 8 a of the movable frame 8 is opened, and the vertical type The nori supply guide 28 reciprocates between the nori supply position communicating with the outside air.

  From this state where the sheet-like seaweed Q is adsorbed by the adsorbing pad 16 and the adsorbing pad 16 is slid to the nori supply position and the air inlet 8a of the movable frame 8 and the cavity S communicate with each other. Is closed and the air flow route is changed so that the intake port 8a is opened, so that the sheet-like seaweed Q can be dropped to the supply portion side of the shaped cooked rice R.

  As shown in FIGS. 6 (c) and 6 (d), the nori supply guide 28 includes an opening 19 for taking out the sheet-like nori Q of the nori hopper 15 and an adsorption pad 16 that has moved backward to the nori supply position. The laver supply guide 28 has a laver drop hole 28a that communicates vertically from the wide rectangular upper opening to the lower rectangular opening that gradually becomes narrower downward. Is formed. Then, on the lower side of the suction pad 16 that has moved backward to the seaweed supply position, the position toward the inside of the seaweed dropping hole 28a of the seaweed supply guide 28 from the position of the plurality of intake ports that are the suction tip positions of the suction pad 16 A sheet-like seaweed butting member 29 is provided so as to project.

  When the sheet-like seaweed butting member 29 drops and supplies the sheet-like seaweed Q through the nori dropping hole 28a of the nori supply guide 28 to the supply portion side of the shaped cooked rice R, FIG. 6 (c) and FIG. ), The lower edge side of the sheet-like laver Q adsorbed by the plurality of suction nozzles 16a of the adsorption pad 16 is contacted with the sheet-like laver abutting member 29 protruding inward of the laver dropping hole 28a. The adsorbing pad 16 is released from the negative pressure (vacuum breakage) by being brought into contact with and forcibly bent, whereby the sheet-like seaweed Q can be peeled off from the adsorbing pad 16 reliably and quickly.

  Further, as shown in FIGS. 7A and 7B, the suction pad 16 is disposed on the L-shaped base end side of the suction pad 16 at the suction pad 16 retracted position where the suction port 8 a of the movable frame 8 is opened. An opening 30 communicating with the opening 8a is provided, and a shock absorbing material 31 for absorbing noise such as a sound absorbing sponge material is accommodated in the opening 30.

  As a result, even when the suction pad 16 comes to the nori supply position where it communicates with the nori drop hole 28 a of the nori supply guide 28, the air exhausted from the intake port 8 a of the movable frame 8 is the shock absorbing material for absorbing noise in the opening 30. Therefore, when the laver adsorption motor 6 continues to rotate at a constant rotational speed, the vibration sound of the laver adsorption motor 6 and the wind noise of the blower are released. The noise absorbing buffer material 31 can prevent the noise from being continuously generated as a large noise around the outside due to cavity resonance from the intake port 8a. At this time, when the suction force of the suction pad 16 is required, there is no loss in the amount of suction because the suction port 8a of the movable frame 8 and the cavity S of the suction pad 16 communicate with each other, and when the suction port 8a of the movable frame 8 is opened. Only, the noise can be suppressed by communicating with the opening 30 having the buffer material 31.

  As another example for suppressing the noise of the seaweed adsorption motor 6 that continues to rotate at a constant rotational speed, as shown in FIG. 8, a so-called driver for controlling the rotational speed of the seaweed adsorption motor 6 can be used. A motor drive control circuit 32 is connected. This motor drive control circuit 32 increases the rotational speed by sending a high-speed command signal to the nori adsorption motor 6 in accordance with the timing at which the sheet-like nori Q is adsorbed by the adsorption pad 16 to increase the amount of intake air.

  On the other hand, when the sheet-like nori Q is not adsorbed by the adsorbing pad 16, a low-frequency command signal is sent from the motor drive control circuit 32 to the nori adsorption motor 6 to reduce the rotational speed, thereby reducing the amount of air intake and noise. Reduce. At this time, the nori motor 6 reduces the noise of about 70 to 80 decibels to an average of 60 decibels by this rotational speed control. Moreover, the negative pressure at the time of supplying the sheet-like seaweed Q can be reduced by using it together with the forced peeling of the sheet-like seaweed Q by the sheet-like seaweed butting member 29 described above.

  Next, an example of assembly, use, and operation of the best mode of the laver adsorption mechanism of the laver roll forming apparatus configured as described above will be described.

  As shown in FIGS. 5 (a) to 5 (c), a plurality of sheet-like laver Q that has been cut in the required dimensions in the laver hopper 15 in a horizontal direction with the smooth surface side facing the opening 19 side. It accommodates so that it may become a perpendicular | vertical state, and the several sheet-like seaweed Q is latched with the stopper 20 in the opening part 19 side by the press of the pressing plate 17 from back.

  Then, the laver conveying and feeding motor 4, the suction pad driving motor 5, and the laver sucking motor 6 are operated. At this time, when the suction pad 16 is reciprocated along the guide portion 18 in the back-and-forth slide direction via the driving force transmission mechanism 27 including the crank mechanism and the connecting rod 18a by the operation of the suction pad drive motor 5, the suction pad is driven. 16 moves in the contact / separation direction with respect to the opening 19 for taking out the sheet-like laver Q of the laver hopper 15. That is, the suction pad 16 has a laver adsorption position where the cavity S communicates with the intake port 8 a of the movable frame 8, and a nori drop hole 28 a of the vertical laver supply guide 28 where the intake port 8 a of the movable frame 8 is opened. It moves back and forth between the seaweed supply position that communicates with the outside air.

  As shown in FIG. 6A, when the suction pad 16 is close to the opening 19, air in the cavity S of the suction pad 16 is sucked from the suction port 8a of the movable frame 8 by the suction fan 6a. The sheet-like seaweed Q is adsorbed to the suction nozzle 16 a of the adsorption pad 16.

  Even if the suction pad 16 is retracted to the position shown in FIG. 6B, the suction port 8a of the movable mount 8 always closes the suction port 8a while maintaining communication with the cavity S of the suction pad 16. The intake air from the intake port 8a is prevented from leaking.

  As shown in FIG. 6C, when the suction pad 16 is retracted to the nori supply position where the nori drop hole 28a of the vertical nori supply guide 28 communicates with the outside air, the intake port 8a of the movable gantry 8 is opened. At the same time, the cavity S of the suction pad 16 is closed. At this time, the inside of the cavity S of the suction pad 16 is maintained in a negative pressure state, and the sheet-like seaweed Q is still being sucked by the suction nozzle 16a of the suction pad 16; The edge side is brought into contact with the sheet-like seaweed butting member 29 and is forced to bend so that the inside of the cavity S of the suction pad 16 is released from the negative pressure (vacuum breakage). It is made to peel from the adsorption pad 16 quickly.

  As shown in FIG. 6 (d), the sheet-like seaweed Q forcibly separated from the suction pad 16 is dropped and supplied to the feeding portion side of the shaped cooked rice R through the laver dropping hole 28 a of the laver supply guide 28. By actuating the driving motor 7, the sheet-like seaweed Q is wound around the formed cooked rice R on the turntable 2 by an automatic seaweed winding mechanism (not shown).

  As shown in FIG. 7 (b), the suction pad 16 has a noise absorbing cushioning material 31 accommodated in the opening 30 communicating with the air inlet 8 a of the movable frame 8, and therefore, the suction pad 16. Even when the seaweed supply position communicates with the seaweed supply guide 28, the air exhausted from the air inlet 8 a of the movable mount 8 is exhausted through the shock absorbing material 31 of the opening 30.

  As a result, when the laver adsorption motor 6 continues to rotate at a constant rotation speed, the vibration sound of the laver adsorption motor 6 and the wind noise of the blower are caused by cavity resonance from the air inlet 8a of the opened movable frame 8. Prevents the noise from being generated continuously around the outside. That is, when the suction force of the suction pad 16 is required, there is no loss of the suction amount because the suction port 8a of the movable frame 8 and the cavity S of the suction pad 16 communicate with each other, and only when the suction port 8a of the movable frame 8 is opened. The noise is suppressed by communicating with the opening 30 having the buffer material 31.

  Further, as shown in FIG. 8, the motor drive control circuit 32 sends a high-speed range command signal to the laver adsorption motor 6 in accordance with the timing of adsorbing the sheet-like laver Q with the adsorption pad 16 to increase the rotation speed. Increase the amount of air intake.

  On the other hand, when the sheet-like nori Q is not adsorbed by the adsorbing pad 16, a low-frequency command signal is sent from the motor drive control circuit 32 to the nori adsorption motor 6 to reduce the rotational speed, thereby reducing the amount of air intake and noise. Reduce. At this time, the nori motor 6 reduces the noise of about 70 to 80 decibels to an average of 60 decibels by this rotational speed control.

  In addition, this invention is not limited to the said embodiment, The improvement deformation | transformation etc. in the range which can achieve the objective of this invention are included by this invention.

1 is a side view of a laver roll forming apparatus in the best mode for carrying out the present invention. It is a top view which similarly shows each arrangement | positioning relationship of the laver conveyance supply motor of the laver adsorption mechanism, the adsorption pad drive motor, the laver adsorption motor, and the winding drive motor. It is a top view which similarly shows arrangement | positioning relations, such as an adsorption pad of the nori adsorption mechanism with respect to a turntable, a nori supply guide, a sheet-like nori butting member. It is a perspective view of the state where a seaweed hopper and a push board were similarly removed from a seaweed adsorption mechanism. Similarly, an example of the seaweed adsorption mechanism in use is shown, (a) is a plan view, (b) is a right side view, and (c) is a front view. Similarly, explaining the operation of the seaweed adsorption mechanism, (a) is a cross-sectional view of the state in which the sheet-like seaweed is adsorbed and held by the adsorption pad, (b) is a cross-sectional view of the state in which the adsorption pad is moving backward, (C) is a cross-sectional view of a state in which the sheet-like seaweed comes into contact with the sheet-like seaweed butting member and peels off from the suction pad, and (d) is a sheet-like seaweed that has been forcedly peeled off from the suction pad via the seaweed supply guide 28. It is sectional drawing of the state by which it is fall-supplied and supplied to the supply part side of molded rice. Is. An example of a laver adsorption mechanism containing a noise absorbing cushioning material, (a) is a cross section of the laver adsorption mechanism in a state where air is sucked into the dust box from the cavity of the adsorption pad through the inlet of the movable frame FIG. 4B is a cross-sectional view of the seaweed adsorption mechanism in a state in which noise from the seaweed adsorption motor is absorbed by the outside air being sucked through the cushioning material. It is a block diagram of the state which provided the motor drive control circuit in the motor for laver adsorption.

P Nori roll forming device Q Sheet-like nori R Molded cooked rice S Cavity H Supply hopper 1 Molding part 2 Turntable 3 Nori adsorbing mechanism 4 Nori transport motor 5 Adsorption pad drive motor 6 Nori adsorbing motor 6a Intake fan 7 For winding drive Motor 8 Movable frame 8a Inlet 9 Support frame 11 Nori transport mechanism 12 Transfer screw 13 Transmission gear 14 Drive gear 15 Nori hopper 16 Adsorption pad 16a Suction nozzle 17 Press plate 18 Guide portion 18a Connecting rod 19 Opening 20 Stopper 21 Nori sensor 22 Base 23 Intake passage 24 Exhaust port 25 Partition 26 Filter 27 Driving force transmission mechanism 28 Nori supply guide 28a Nori drop hole 29 Sheet-like nori butting member 30 Opening 31 Buffer 32 Motor drive control circuit

Claims (2)

A movable gantry with an inlet,
An intake fan that is provided below the intake port of the movable frame and is driven by a laver adsorption motor;
A laver hopper provided on the movable frame;
A laver supply guide having a laver drop hole formed therein, the upper opening of the laver drop hole being disposed on the movable frame, and a sheet-like laver butt against the inward side of the laver drop hole A laver supply guide formed by projecting members,
A suction pad and a suction pad in which a cavity is formed, and a suction pad that is capable of reciprocating on the movable frame, and a laver adsorption mechanism comprising:
The suction pad includes a laver suction position where the sheet-like seaweed of the laver hopper is adsorbed and taken out by the suction nozzle through communication between the suction port of the movable frame and the cavity of the suction pad, and the suction port of the movable frame And the suction pad cavity is closed, and the sheet-like seaweed can be reciprocated between the seaweed supply position that allows the sheet-like seaweed to fall and be supplied to the seaweed dropping hole of the seaweed supply guide,
The suction pad further includes an opening communicating with the inlet of the movable gantry at the laver supply position where the inlet of the movable gantry is opened to the outside air, and a buffer material is accommodated inside the opening. Comprising absorbing the noise of the seaweed adsorption motor by sucking outside air through the buffer material,
The sheet-like seaweed abutting member is brought into contact with the lower edge side of the sheet-like seaweed adsorbed by the suction nozzle of the suction pad at the nori supply position and curved, thereby negative pressure inside the cavity of the suction pad seaweed adsorption mechanism of Norimaki forming apparatus characterized by releasing and this for peeling the layer sheet from the suction pad. Increasing the rotation speed of the motor for seaweed adsorption when adsorbing the sheet over preparative laver with suction pad, according to claim 1, further comprising a motor drive control circuit for reducing the rotational speed of the motor for seaweed adsorbed during non-adsorbed Norimaki Seaweed adsorption mechanism of molding equipment.

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