KR20210050127A - Food waste grinding device - Google Patents

Abstract

The present invention relates to a food waste grinder with an improved cutting function. More specifically, the food waste grinder comprises: a housing having upper and lower open surfaces and having a receiving space formed therein; a driving screw installed across the housing and including a driving shaft rotating by receiving rotational force from a motor and a driving blade formed on the outer circumferential surface of the driving shaft to rotate in the receiving space of the housing; a driven screw installed across the housing and including a driven shaft rotating by receiving rotational force from the driving shaft and a driven blade formed on the outer circumferential surface of the driven shaft to rotate in the receiving space of the housing; a perforated plate installed on the lower open surface of the housing and having a plurality of discharge holes through which juice of food waste is discharged; and a discharge cover coupled to the rear end of the housing and having a discharge hole through which pulverized food waste is discharged. Accordingly, protruding blades protruding toward the perforated plate are formed on the rear end face of the driving blade and the rear end face of the driven blade, respectively, and a screw facing surface having a cutting blade formed therein to cut food waste while intersecting the protruding blades is formed on the front surface of the discharge cover, thereby providing an effect of finely pulverizing even the food waste difficult to cut, such as fibers and bones.

Description

Food waste grinding device with improved cutting function

The present invention relates to a food waste crushing apparatus, and in particular, to a food waste crushing apparatus having an improved cutting function capable of finely crushing even food waste that is not well crushed.

The increase in waste discharge due to rapid industrial development and population growth has been pointed out as a factor of serious environmental pollution.

Among these wastes, food wastes discharged from households, restaurants and food manufacturing plants in particular generate severe odors and become pollution by themselves, and when they flow into rivers, they promote eutrophication of water and pollute the water quality. Causes serious problems such as back.

Therefore, in order to solve the problem caused by the food waste, various technologies related to the food waste disposal apparatus have been developed, and recently, a device for rapidly composting by microorganisms by crushing and discharging the food waste has also been proposed.

However, the food waste shredding device proposed so far has a limitation in not being able to crush things such as long and tough fibers or bones of animals or fish well.

Registered patent: 10-2029720 (application number: 10-2018-0006845, title of invention: food waste shredding device)

The present invention has been devised to solve the problems of the prior art, and provides a food waste crushing apparatus with improved cutting function capable of finely crushing food waste that is not well crushed such as fibers or bones of animals or fish. There is a purpose.

A food waste shredding device having an improved cutting function according to the present invention for solving the above problems includes: a housing having an upper and lower surface open and an accommodation space provided therein; A drive screw installed across the housing and comprising a drive shaft that rotates by receiving a rotational force of a motor, and a drive blade formed on an outer circumferential surface of the drive shaft to rotate within an accommodation space of the housing; A driven screw installed across the housing and comprising a driven shaft that rotates by receiving a rotational force from the drive shaft, and a driven blade formed on an outer circumferential surface of the driven shaft to rotate within an accommodation space of the housing; A perforated plate installed on an open lower surface of the housing and having a plurality of discharge holes through which a juice juice of food waste is discharged; A discharge cover coupled to the rear end of the housing and having a discharge hole through which the pulverized food waste is discharged, wherein a protruding blade protruding toward the perforated plate is formed on a rear end surface of the driving blade and a rear end surface of the driven blade, respectively, , A surface facing the screw having a cutting blade for cutting food waste while intersecting with the protruding blade is formed on the front surface of the discharge cover.

Here, a discharge rotor rotating in a state coupled to a rear end of the drive shaft is installed on the discharge cover; The discharging rotor includes a rotary knife having a plurality of teeth formed to cut and scrape the food waste discharged through the discharging hole; And a pressing blade extending toward the opposite side of the rotary knife to press the food waste discharged through the discharge hole downward.

In addition, a cutting cover provided in the width direction on a bottom surface of a plurality of fixed knives for cutting food waste conveyed by the driving screw and the driven screw is installed at the rear end of the open upper surface of the housing.

In addition, a driving gear receiving the rotational force of the motor is installed at the front end of the driving shaft, and a driven gear engaged with the driving gear is installed at the front end of the driven shaft, so that the driving screw and the driven screw face each other. It rotates from top to bottom.

In addition, the driving blade and the driven blade are each formed with a plurality of teeth at the edge of the rear end.

In addition, a reverse rotation preventing member for preventing reverse rotation of the driving screw is detachably installed at the upper end of the housing.

In the food waste crushing device with improved cutting function of the present invention configured as described above, not only the crushing, crushing and juice of food waste is performed by the driving screw and the driven screw, but also the protruding blades of the driving and driven blades are inside the discharge cover. There is an advantage of improving the crushing effect by finely pulverizing food waste that is difficult to cut such as fibers or bones while intersecting the cutting edge of the blade.

In addition, as the rotary knife of the discharge rotor rotates, the food waste discharged through the discharge hole can be cut once again, and fibers or fish bones that are discharged without cutting a number of teeth formed on the rotary knife of the discharge rotor are not cut. Since it is scraped off, it is possible to prevent a load from being applied to the pulverizing device, and there is an advantage that some remaining fibers can be forcibly pulled and discharged to the outside.

In addition, when food waste is interposed between the driving screw and the driven screw when the food waste is crushed, and a load is placed on the crushing device, such as animal bones, The driving screw and the driven screw are rotated in reverse for a certain period of time and then stopped to take out the load material (animal bone) therebetween. In the present invention, a reverse rotation preventing member is installed so that the driving screw and the driven screw are reversed for a certain period of time. After rotation, there is an advantage that the load material can be easily taken out by making it no longer reverse rotation.

1 is a perspective view of a food waste crushing apparatus with improved cutting function according to the present invention.
Figure 2 is an exploded perspective view of the food waste crushing device shown in Figure 1;
3 is a view showing a driving screw, a driven screw, and a discharge cover of the food waste shredding apparatus shown in FIG. 1;
4 and 5 are views showing a discharge cover and a discharge rotor of the food waste shredding apparatus shown in FIG. 1.

Hereinafter, with reference to the accompanying drawings, an embodiment of a food waste crushing apparatus having an improved cutting function according to the present invention will be described in detail.

1 is a perspective view of a food waste crushing apparatus with improved cutting function according to the present invention, and FIG. 2 is an exploded perspective view of the food waste crushing apparatus shown in FIG. 1.

And, Figure 3 is a view showing the drive screw, driven screw and discharge cover of the food waste shredding apparatus shown in Figure 1, Figures 4 and 5 are the discharge cover and the discharge rotor of the food waste shredding apparatus shown in FIG. It is a diagram showing.

The food waste shredding apparatus with improved cutting function according to the present invention includes a housing 10, a driving screw 20 installed in the housing 10, a driven screw 30 installed in the housing 10, and the A perforated plate 40 installed on the lower surface of the housing 10, a discharge cover 50 coupled to the rear end of the housing 10, a discharge rotor 60 installed on the discharge cover 50, and the A cutting cover 70 installed on the upper surface of the housing 10, a reverse rotation preventing member 80 installed on the upper end of the housing 10, and a finishing cover 90 installed outside the discharge cover 50 ).

The housing 10 provides a space in which food waste is transported, crushed, and juiced, and is preferably made of a metal or reinforced plastic material such as aluminum that is easy to clean and is less deformed by an external force.

The housing 10 has an open upper and lower surface and an accommodation space is provided therein. Food waste is introduced through the open upper surface of the housing 10, and the crushed juice of the food waste is discharged through the open lower surface.

The driving screw 20 is composed of a driving shaft 21 and a driving blade 22 formed on an outer circumferential surface of the driving shaft 21.

The drive shaft 21 is installed across the housing 10 in the longitudinal direction so that both ends protrude from both sides of the housing 10. This drive shaft 21 rotates by receiving a rotational force from a motor (not shown).

The driving blade 22 is formed in a shape like a screw thread along the longitudinal direction of the driving shaft 21, and rotates within the receiving space of the housing 10 to move food waste from the front end to the rear end of the housing 10. Transfer.

The driving blade 22 is thicker on the side closer to the driving shaft 21 and thinner as the driving blade 22 is further away from the driving shaft 21.

In addition, a plurality of teeth 22a are formed at the edge of the rear end side of the driving blade 22 having a thin thickness.

The driven screw 30 has the same structure as the driving screw 20 described above, and is composed of a driven shaft 31 and a driven blade 32 formed on an outer circumferential surface of the driven shaft 31.

The driven shaft 31 is installed across the housing 10 in the longitudinal direction next to the driving shaft 21 so that both ends protrude from both sides of the housing 10. This driven shaft 31 rotates by receiving a rotational force from the driving shaft 21.

The driven wing 32 is formed in a shape like a screw thread along the longitudinal direction of the driven shaft 31, and rotates within the receiving space of the housing 10 so that food waste is moved from the front end to the rear end of the housing 10. Transfer.

These driven blades 32 are thicker on the side closer to the driven shaft 31 and thinner as they move away from the driven shaft 31.

In addition, a plurality of teeth 32a are formed at the rear edge of the driven wing 32 having a thin thickness.

In more detail, the driving blades 22 and the driven blades 32 rotate while being positioned next to each other in the receiving space of the housing 10, and they are arranged to be staggered in the longitudinal direction of the housing 10, so that the driving blades 22 And the driven wing (32) do not contact each other. Therefore, the food waste put into the housing 10 is crushed by the driving blades 22 and the driven blades 32, while being pressed in the narrow space between the driving blades 22 and the driven blades 32, and then transported while juiced. .

In addition, the plurality of teeth (22a, 32a) formed on the driving blade (22) and driven blade (32) are crushed and juiced by the driving screw (20) and the driven screw (30) to accommodate the transported food waste ( At the rear end of 10), it is pulled in between the driving screw 20 and the driven screw 30 so that it is better crushed and juiced.

Meanwhile, a driving gear 21a is installed at the front end of the driving shaft 21, and a driven gear 31a is installed at the front end of the driven shaft 31.

The driving gear 21a is dynamically connected to a motor that provides rotational force, and rotates the driving shaft 21 with the rotational force transmitted from the motor.

The driven gear 31a rotates while being engaged with the driving gear 21a. Therefore, the driving screw 20 and the driven screw 30 rotate in a top-down direction toward each other, so that the food waste injected into the housing 10 is drawn between the driving screw 20 and the driven screw 30. And can be better crushed.

The perforated plate 40 is installed on the open lower surface of the housing 10 and has a plurality of discharge holes 40a through which the juice of food waste is discharged.

This perforated plate 40 may be configured in a form in which two curved surfaces that are convex downward similar to the form in which the Arabic numeral 3 lies down are arranged side by side in order to maintain a constant distance between the driving blade 22 and the driven blade 32. When the perforated plate 40 is formed in this form, the driving wing 22 and the driven wing 32 and the perforated plate 40 can be located as close as possible, so that the driving wing 22 and the driven wing 32 and the perforated plate 40 It is possible to increase the efficiency of crushing and juice of the food waste by allowing the food waste to be pressurized even in the middle.

The discharge cover 50 has a discharge hole 51 through which pulverized food waste is discharged in the housing 10, and a screw-facing surface 52 having a cutting blade 52a formed therein is formed on the front surface thereof.

In more detail, the discharge cover 50 has a screw-facing surface 52 formed at a predetermined depth by intaglio on the front surface, and the screw-facing surface 52 is the rear end surface of the driving blade 22 and the driven blade 32 ) In contact with the rear end surface.

Further, the screw facing surface 52 is provided with a plurality of cutting blades 52a which are dug inward and formed in a triangular shape.

On the other hand, protruding blades 22b and 32b protruding toward the screw facing surface 52 of the perforated plate 40 are formed on the rear end surface of the driving blade 22 and the rear end surface of the driven blade 32, respectively.

The protruding blades 22b and 32b are formed by making a sharp step on the rear end surface of the driving blade 22 and the rear end surface of the driven blade 32. Cut the trash. In the absence of the cutting blade (52a) and the protruding blades (22b, 32b), food waste such as fiber may not be cut well, but the cutting blade (52a) and the protruding blades (22b, 32b) intersect with each other. Because it cuts the length of the fiber can be reduced.

The discharge rotor 60 rotates while being coupled to the rear end of the drive shaft 21. In addition, the rear end of the drive shaft 21 is exposed through the discharge cover 50, and the discharge rotor 60 is coupled to the rear end of the drive shaft 21 to rotate together with the drive shaft 21. do.

The discharge rotor 60 includes a rotating knife 61 and a pressing blade 62 formed to extend to the opposite side of the rotating knife 61.

The rotary knife 61 cuts the food waste discharged through the discharge hole 51. The rotating knife 61 rotates in close contact with the outer surface of the discharge cover 50 to increase cutting efficiency.

However, even if the rotary knife 61 is in close contact with the outer surface of the discharge cover 50 and rotates, sometimes fibers or bones are not cut and interposed between the outer surface of the discharge cover 50 and the rotary knife 61 There is. In this case, since a load may be generated on the pulverizing device, it is necessary to quickly remove bone or fibers between the discharge cover 50 and the rotary knife 61. To this end, in the present invention, a plurality of teeth 61a are formed on the rotary knife 61.

Therefore, while the rotating knife 61 with the teeth 61a rotates in close contact with the outer surface of the discharge cover 50, it can be dropped downward by scratching the bones or fibers attached to the outer surface of the discharge cover 50. There will be.

The pressing blade 62 rotates together with the driving shaft 21 and presses the food waste discharged through the discharge hole 51 downward to drop it.

The cutting cover 70 is installed on the rear end of the open upper surface of the housing 10, and cuts the food waste transferred to the rear end of the housing 10 by the driving screw 20 and the driven screw 30. . In order to cut the food waste in this way, a plurality of fixing knives 71 are provided on the bottom of the cutting cover 70 in the width direction.

Accordingly, when the food waste is pushed into the rear end of the housing 10 by the rotation of the driving screw 20 and the driven screw 30, it is cut finely while passing through the fixed knife 71, thereby reducing the load in the subsequent process. In particular, even hard bones of animals can be easily broken or cut by the fixed knife 71 with an instant pushing force.

And, in order to maintain a certain distance between the driving wing 22 and the driven wing 32, the shape of the line connecting the lower end of the fixed knife 71 is similar to the shape of the Arabic numeral 3 lying down, and two curved surfaces that are convex downward are arranged side by side. It can also be configured in the form.

The reverse rotation preventing member 80 is detachably installed on the upper end of the housing 10 to prevent the driving screw 20 from rotating in the reverse direction. When the driving screw 20 rotates in one direction (forward direction), the reverse rotation preventing member 80 does not interfere with its rotation, but when the driving screw 20 rotates in the other direction (reverse direction), the lower part is the driving screw. By contacting the side of the drive blade 22 of (20), it hinders the rotation.

The reverse rotation preventing member) 80 is detachably installed on the upper end of the housing 10 in order to take out the hard material stuck between the driving screw 20 and the driven screw 30, and the driving screw 20 and the driven When a hard material such as an animal bone is caught between the screws 30, a large load is placed on the pulverizing device, so to remove such a load material, the motor is rotated in reverse for a certain period of time and then stopped to provide power from the motor. (20) and the driven screw (30) is also required to be stopped after rotating for a certain period of time. In this way, the driving screw 20 and the driven screw 30 rotate in reverse for a certain period of time, and then stop without any further reverse rotation, so that the load material can be easily taken out between the driving screw 20 and the driven screw 30. A reverse rotation prevention member 80 according to the present invention is required.

The finishing cover 90 is installed on the outer surface of the discharge cover 50 to accommodate the discharge rotor 60 therein. The closing cover 90 is opened at the lower side so that the food waste dropped downward by the pressing blade 62 of the discharge rotor 60 can be discharged to the outside.

10: housing 20: drive screw
21: drive shaft 21a: drive gear
22: drive blade 22a: tooth
22b: protruding blade 30: driven screw
31: driven shaft 31a: driven gear
32: driven wing 32a: tooth
32b: protruding blade 40: perforated plate
40a: discharge hole 50: discharge cover
51: discharge hole 52: screw facing surface
52a: cutting blade 60: discharge rotor
61: rotary knife 61a: teeth
62: presser blade 70: cutting cover
71: fixed knife 80: reverse rotation preventing member
90: finishing cover

Claims (6)

The upper and lower surfaces are opened and the housing 10 is provided with an accommodation space therein;
A drive shaft 21 that is installed across the housing 10 and rotates by receiving the rotational force of a motor, and a drive blade that is formed on the outer circumferential surface of the drive shaft 21 and rotates within the accommodation space of the housing 10 ( A drive screw 20 made of 22);
A driven shaft 31 that is installed across the housing 10 and rotates by receiving a rotational force from the drive shaft 21, and is formed on the outer circumferential surface of the driven shaft 31 so as to be within the receiving space of the housing 10. A driven screw 30 made of a driven wing 32 that rotates;
A perforated plate 40 installed on the open lower surface of the housing 10 and having a plurality of discharge holes 40a for discharging the juice of food waste;
Including; a discharge cover 50 coupled to the rear end of the housing 10 and having a discharge hole 51 through which the pulverized food waste is discharged,
Protruding blades 22b and 32b protruding toward the perforated plate 40 are formed on the rear end surface of the driving blade 22 and the rear end surface of the driven blade 32, respectively,
The cutting function is improved, characterized in that the screw-facing surface 52 formed inside the cutting blade 52a for cutting food waste while crossing the protruding blades 22b and 32b is formed on the front surface of the discharge cover 50 Food waste shredding device.
The method according to claim 1,
The discharge cover 50 is provided with a discharge rotor 60 rotating in a coupled state to the rear end of the driving shaft 21,
The discharge rotor 60 includes a rotary knife 61 having a plurality of teeth 61a to cut and scrape the food waste discharged through the discharge hole 51;
A food waste crushing device having improved cutting function, characterized in that consisting of; a pressing blade (62) extending toward the opposite side of the rotary knife (61) to press the food waste discharged through the discharge hole (51) downward.
The method according to claim 1,
A cutting cover 70 provided in the width direction on the bottom surface of a plurality of fixed knives 71 for cutting food waste conveyed by the driving screw 20 and the driven screw 30 is opened. Food waste crushing device with improved cutting function, characterized in that installed at the rear end of the upper surface.
The method according to claim 1,
A driving gear (21a) that receives the rotational force of a motor is installed at a front end of the driving shaft (21), and a driven gear (31a) engaged with the driving gear (21a) is installed at the front end of the driven shaft (31). Installed,
The driving screw 20 and the driven screw 30 rotate in a top-down direction toward each other.
The method according to claim 1,
The driving blade (22) and the driven blade (32) is a food waste crushing device with improved cutting function, characterized in that a plurality of teeth (22a, 32a) are formed at the rear edge, respectively.
The method according to claim 1,
A food waste shredding device with improved cutting function, characterized in that a reverse rotation preventing member 80 for preventing reverse rotation of the driving screw 20 is detachably installed at the upper end of the housing 10.

Images