JPS6140147Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Field of Application" This invention relates to a rice metering plater having a rice accumulation detection device on the upper part of the rice bowl.

``Prior art'' Previously, experiments were carried out by drilling a through hole on the opposing inner surface of the upper cylinder of the Iiyo box on the radial center line of the cylinder, and arranging a light emitting tube and a light receiving tube outside the through hole. However, since the opposing inner surface was an upright surface, the rice that had accumulated inside the cylinder stuck to the opening of the through hole and blocked it, and even when the rice fell and the inside of the cylinder became empty, the arc tube remained intact. The light beam cannot be received by the receiver tube,
It was discovered that a signal could not be transmitted from the light receiving tube, and as a result, the rice pushing device directly above the rice bowl and the upper shutter of the rice measuring bowl stopped operating, making it impossible to smoothly serve rice in quantitative quantities.

``Problems to be solved by the invention'' This invention uses a light emitting tube and a light receiving tube to ensure the descent of the rice when the rice accumulated in the upper cylinder of the rice bowl descends into the bowl below and becomes empty. The purpose of the present invention is to obtain a rice metering and serving machine that can detect the amount of food.

``Means for Solving the Problems'' The present invention is to provide a rice bowl in the cylindrical part connected to the lower part of the hopper. Directly above the opening/closing shutter, a through hole is bored through the wall opposite the cylindrical part, and the opposite inner surface of the opposite wall is inclined downward in the opposite direction to the facing direction, and the inner surface of the through hole is formed on the inclined surface. There is a food quantity plater having an open end and a light emitting tube and a light receiving tube disposed at the outer end opening of the through hole.

``Function'' Therefore, the rice that is pushed from the hopper into the lower cylindrical part by the rice pushing device and deposited on the rice metering pan rarely comes into contact with the through hole opened in the above-mentioned inclined surface, but even if it comes into contact with it, the rice is pushed into the lower cylindrical part by the rice pushing device. Since the surface is inclined downward in the direction opposite to the opposing direction, there is no risk of it falling easily and clogging the opening of the through hole.

“Embodiment” A rice pushing device 3 is formed at the bottom of a hopper 2 provided in a machine frame 1. This pushing device 3 has a horizontal rotation shaft 4
A comb-shaped rotary rod 5 is provided protruding from the top, but a screw-shaped one may also be used. A deceleration brake motor is used as the prime mover of the device 3. A cylindrical part 6 is provided at the lower end of the hopper 2,
A rice bowl 7 is interposed in the cylindrical portion 6. This metering chamber 7 is formed by an inner circumferential surface 8 of the cylindrical portion 6 and upper and lower opening/closing shutters 9, 10, and the radial center of the cylindrical portion 6 is located between the upper opening/closing shutter 9 and the pushing device 3. Along the line a, the cylindrical part opposing wall 11
Through-holes 12, 12 are bored through the opposite wall 1.
The opposing inner surface of the through hole 12 is inclined downward in the opposite direction to the facing direction, the inner end of the through hole 12 is opened in the inclined surface 13, 13, and the arc tube 1 is opened at the outer end opening of the through hole 12.
4 and a light receiving tube 15 are arranged. Reference numeral 16 in the figure is a cylinder or lever for opening and closing the upper and lower opening/closing shutters 9, 10, respectively, 17 is a heating heater, 18 is an outer box for keeping warm, and 19 is an opening/closing lid for keeping warm of the hopper 2. Opening/closing levers 16, 16 for opening/closing shutters 9, 10
is pivotally supported on the machine frame 1, and the rollers at one end of the levers 16, 16 are operated along a cam to alternately open and close the vertical opening/closing shutters 9, 10, and the cam is rotated by a variable speed motor. can be done.

Therefore, if the upper part of the rice measuring box 7 is clogged with rice, the luminous tube 1
The light beam from 4 is blocked and the light receiving tube 15 senses this, and in response to the signal, opens the upper shutters 9, 9, closes the lower shutters 10, 10 to the imaginary line position in FIG. 2, and closes the pushing device 3. Since the rice is stopped, it descends and enters the metering chamber 7 (between the upper and lower opening/closing shutters 9 and 10) without touching the inclined surfaces 13 and 13. In this state, the upper part becomes empty and the light beam from the light emitting tube 14 passes through the through hole 12 and passes through the light receiving tube 1.
5 senses this, and in response to the signal, the upper shutters 9, 9 close as shown by solid lines in FIG. The operation of stuffing rice into the upper part of the upper shutters 9, 9 which are operating and closed is repeated.

"Effect" Since the present invention is constructed as described above, the rice accumulated and clogged in the upper cylindrical part 6 of the rice bowl 7 is removed from the inclined surface 1.
There is no risk that the through holes 12 opened on the same planes 13 and 13 will be blocked by the rice, so the rice will fall into the lower metering chamber 7 and the empty state will be detected by the light emitting tube 14 and light receiver. This can be reliably detected by the tube 15.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a rice feeding machine equipped with the rice quantity serving machine of the present invention, and FIG. 2 is an enlarged vertical cross-sectional view of the fixed quantity serving machine. 2... Hopper, 6... Cylindrical part, 7... Measuring box, 9, 10... Opening/closing shutter, 11... Cylindrical part opposing wall, 12... Through hole, 13... Inclined surface, 14
...Earth tube, 15...Receiver tube.

Claims (1)

[Scope of utility model registration request] A food container is provided in the cylindrical part connected to the lower part of the hopper, and the trough is formed by the inner circumferential surface of the cylindrical part and the upper and lower shutters. A through hole is bored through the opposing wall, the opposing inner surface of the opposing wall is inclined downward in a direction opposite to the opposing direction, the inner end of the through hole is opened in the same inclined surface, and the outer end of the through hole is formed. A food serving plater with a light emitting tube and a light receiving tube arranged in the opening.