JPS63224751A - Garbage disposer - Google Patents

Abstract

PURPOSE:To enable sufficiently dehydrate garbage, by providing a driving means for rotating a screw and a screen while keeping speed difference in same direction in a garbage disposer provided with the screw having a screw blade and the screen. CONSTITUTION:A gear 53 is fixed to a screw 27 via a motor shaft 47 and a gear 49 is fixed to a screen 33 via a screen shaft 37. A gear 50 is engaged with the gear 49 and a gear 51 is engaged with the gear 53 respectively and arranged and the gear 53 is provided so that it is rotated a little speedily than the gear 49. In this constitution, when driving a motor 45, the screw 27 is rotated a little speedily than the screen 33. Water content-contg. garbage introduced into a crushing chamber 17 is crushed with a stationary knife 21 and a rotary knife 25 and falls on the bottom part of the screen 33 and is scattered to the side face of the screen 33 with centrifugal force, pressed and dehydrated. This garbage is slowly carried upward by a screw blade 29 rotating a little speedily than the screen 33 and sufficiently dehydrated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a kitchen waste processing machine that crushes and dehydrates kitchen waste.

[Prior Art] Japanese Unexamined Patent Publication No. 57-174161 discloses a kitchen waste processing machine that dehydrates kitchen waste while pulverizing it and conveying and discharging it with a screw.

The kitchen waste processing machine according to the embodiment of the above publication includes a crushing chamber having a kitchen garbage inlet and a fixed blade, a rotary plate disposed at the bottom of the crushing chamber and having a rotating blade, and a rotary plate disposed surrounding the outer periphery of the crushing chamber,
It consists of a screw having screw blades on its outer periphery, a screen that is placed around the outer periphery of the screw to dehydrate crushed kitchen waste, and a motor that rotates a rotary plate and the screw.

In the kitchen waste processing machine configured as described above, the kitchen waste inputted into the crushing chamber from the input port is crushed by the fixed blade and the rotary blade by rotation of the rotary plate. The pulverized kitchen waste containing moisture falls to the bottom of the screen, is conveyed to the top of the screen by the screw blades of the rotating screw, is pressed against the screen by centrifugal force, is dehydrated, and is discharged from the discharge port at the top of the screen to the dust box. Ru.

[Problems to be solved by the invention] When the kitchen waste processing machine described above dewaters the crushed kitchen waste, if the rotation speed of the screw is slow, the centrifugal force acting on the kitchen waste will be small and sufficient dewatering will not be possible. needs to be rotated. However, when the screw is rotated at high speed,
The speed at which kitchen waste is transported by the screw blade increases, and the kitchen waste is discharged before it is sufficiently dehydrated. Therefore, the above-mentioned kitchen waste processing machine has a problem in that the crushed kitchen waste cannot be sufficiently dehydrated.

[Purpose of the Invention] The present invention was made to solve the conventional problems, and the purpose is that even if the centrifugal force acting on kitchen waste is increased during dewatering of kitchen waste, the conveyance speed of kitchen waste does not increase, and sufficient dehydration is not achieved. The purpose of the present invention is to provide a kitchen waste processing machine capable of

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a screw having screw blades for discharging kitchen waste on the outer periphery, and a screw disposed surrounding the outer periphery of the screw, which is pulverized in a pulverizing chamber. The kitchen waste processing machine is equipped with a screen for dewatering kitchen waste, and is provided with driving means for rotating the screw and the screen in the same direction with a speed difference.

[Operation] In the kitchen waste processing machine of the present invention having the above configuration, the kitchen waste crushed in the crushing chamber is transported by the screw blades at a kitchen waste transport speed determined by the rotational speed difference between the screen and the screw, which are rotated in the same direction. At the same time, the water is dehydrated by being pressed against the screen by centrifugal force determined by the rotation speed of the screen. Therefore, even if the centrifugal force is increased, the food waste conveying speed will not increase, and the food waste will be sufficiently dehydrated and discharged while being conveyed to the upper end of the screen.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

The drawing is a sectional view showing the internal structure of the kitchen waste processing machine of this embodiment.

The machine frame is composed of an upper case 13 and a lower case 15, and the upper case 13 is composed of a crushing chamber 17, a rotating plate 23, a screw 27, and a screen 33.
It houses means for performing a series of operations such as dehydration and transportation.

The lower case 15 has a motor 45 and four gears 49.50
, 51, and 53 are housed therein.

The upper end of the upper case 13, which has a kitchen waste outlet 39 on the side surface of the upper end and a drain port 41 on the side surface of the lower end, has an upper wall cut out, and a cylindrical crushing chamber 17 on the upper side.
is fixed. The crushing chamber 17 has a garbage input port 19 formed at its upper end, and a fixed blade 21 having a large number of notches is fixed to the inner surface of its lower end. A motor 4 extending through the bottom of the upper case 13 is installed at the bottom of the crushing chamber 17.
The circular rotary plate 23 is fixed at its center to the shaft end of the motor shaft 47 so as to close the bottom of the crushing chamber 17. Two rotary blades 25 are pivotally supported on an eccentric portion of the rotary plate 23 so as to face the fixed blade 21 . The screw 27 located so as to surround the outer periphery of the crushing chamber 17 is fixed to the motor shaft 47 by four stays 31 extending from the inner surface of its lower end toward the motor shaft 47 in order to form a passage for the kitchen waste to the screen 33. has been done. A screw blade 29 is formed in a spiral shape on the outer periphery of the screw 27, and when the screw blade 29 rotates counterclockwise when viewed from the arrow direction AR in the drawing, the screw blade 29 has a shape that is lower toward the rotation direction. The kitchen waste dewatering screen 33, which is located so as to surround the screw 27 on which the screw blades 29 are formed, has a large number of small holes in its cylindrical side surface and circular bottom.
It is fixed to a hollow screen shaft 37 through which a motor shaft 47 is inserted. Screen 33 shaped like a flange
Discharge plates 35 for discharging kitchen waste are provided at four locations on the upper end. The screen shaft 37 is rotatably supported by a radial bearing 43 disposed at the bottom of the upper case 13 and reaches into the lower case 15 .

A motor 45 is disposed within a lower case 15 attached to the bottom of the upper case 13 so that a motor shaft 47 extends toward the upper case 13.

The rotation direction of the motor shaft 47 when the motor 45 is energized is counterclockwise from the arrow direction AR in the drawing. A gear 53 is fixed to the motor shaft 47.
A gear 49 is about to be fixed to the screen shaft 37 that hangs down from the upper case 13 and covers the screen. A bearing 55 is disposed between gear 49 and gear 53 so that both gears can rotate independently. A gear 50 is arranged so as to mesh with the gear 49, and a gear 51 is arranged so as to mesh with the gear 53.
rotation is transmitted to gear 49 as rotation in the same direction.

The number of teeth of each gear is set so that gear 53 rotates a little faster than gear 49.

The kitchen waste discharge port 39 of the upper case 13 is connected to a receiving port 59 of a dust box 57 for storing the discharged kitchen waste, and the opening of a plastic bag 61 is attached to the receiving port 59.

Next, the operation of this embodiment will be explained.

When the motor 45 is energized, the motor shaft 47 rotates counterclockwise at high speed when viewed from the arrow direction AR in the drawing.

Due to the rotation of the motor shaft 47, the rotating plate 23 and the screw 2
7 and gear 53 are rotated, and the rotation of gear 53 causes gear 49 to rotate in the same direction at a slightly slower speed than motor shaft 47 via gear 50.5'l. Therefore, the screw 27 rotates in the same direction at a slightly faster speed than the screen 33. Since the screw blades 29 of the screw 27 are formed to become lower in the direction of rotation, the screw blades 29 of the screw 27 are formed to be lower in the rotation direction, so that the screw blades 29 of the screw 27 are rotated at a speed determined by the speed difference with the screen 33.
It rotates to transport kitchen waste upwards.

When kitchen waste containing moisture is introduced into the crushing chamber 7 from the input port 19, the kitchen waste is pressed against the fixed blade 21 by the centrifugal force received from the rotating plate 23) rotating at high speed, and the fixed blade 21 and the rotating blade 25 Shattered. The crushed kitchen waste falls to the bottom of the screen 33 through the notched portion of the fixed blade 21, and is blown to the side of the screen by the centrifugal force received from the screen 33 rotating at high speed, where it is pressed and dehydrated. Moisture dehydrated from the kitchen waste is released from small holes formed in the screen 33 and is discharged from the drain port 41. The kitchen waste that has been pressed against the side surface of the screen 33 to be dehydrated is gradually transported upward by the screw blades 29, which rotate a little faster than the screen 33.

The sufficiently dehydrated kitchen waste reaches the flange-shaped upper end of the screen 33, is collected by the discharge plate 35, and when it reaches a position opposite to the kitchen waste discharge port 39, passes through the receiving port 59 and enters the plastic bag 61 of the dust box 57. is discharged to.

As described above, according to this embodiment, the bottom of the screen 33 is connected to the bottom of the screen 33 by the lower end of the screw blade 29.
Since the inner periphery of the screen 33 is self-cleaned by the outer periphery of the screw blade 29, clogging of the screen 33 and adhesion of kitchen waste to the wall surface do not occur.

The present invention is not limited to the embodiments detailed above, and various changes can be made without departing from the spirit thereof. For example, when the screw blade 29 is formed to be higher in the direction of rotation, that is, when the motor shaft 47 rotates clockwise from the arrow direction ΔR in the drawing, the screw 27 is 3
Gear 49 and gear 50 are rotated a little slower than 3.
By setting the number of teeth of the gear 51 and the gear 53, the same effect as in the above-described embodiment can be achieved with the same structure.

Effect of the Invention 1 As explained above, according to the present invention, when the kitchen waste crushed in the crushing chamber is dehydrated, the screw and the screen are rotated in the same direction with a speed difference. The food waste conveyance speed by the screw blades is determined by the rotational speed difference between the screw and the screen, so if the difference in rotational speed is constant, even if the screen is rotated at high speed to increase the centrifugal force acting on the food waste, the food waste conveyance speed will not change. does not change. Therefore, since the centrifugal force and the food waste conveyance speed can be set to appropriate values, a food waste processing machine that can sufficiently dehydrate the food waste before discharging it can be built, and the industrial effect is extremely human-friendly. It is what it is.

[Brief explanation of the drawing]

The drawing is a sectional view showing the internal structure of a garbage disposal machine according to an embodiment of the present invention. 27 is a screw, 29 is a screw blade, 33 is a screen, 45 is a motor, and 49, 50, 51, and 53 are gears.

Claims (1)

[Claims] 1. A screw (27) having a screw blade (29) for discharging kitchen waste on its outer periphery, and kitchen waste disposed surrounding the outer periphery of the screw (27) and crushed in a crushing chamber (17). screen to dehydrate (
33), a drive means (45,
49, 50, 51, 53). 2. The screw blade (29) is formed to become lower in the direction of rotation, and the screw blade (29) is formed to become lower in the direction of rotation, and the drive means (45)
, 49, 50, 51, 53).
7) is rotated at a faster speed than the screen (33), the garbage processing machine according to claim 1. 3. The screw blade (29) is formed to be higher in the direction of rotation thereof, and the drive means (45)
, 49, 50, 51, 53).
7) is rotated at a slower speed than the screen (33), the garbage disposal machine according to claim 1.