Hardness-screening-based spiral sorting device for kitchen waste

Abstract

A hardness-screening-based spiral sorting device for kitchen waste, relating to the technical field of kitchen waste processing. The spiral sorting device comprises a housing (1), wherein a feeding plate (2), a discharging plate (3), a gearbox and a driving electric motor are mounted on an outer side of the housing (1); two crushing rollers (4) are mounted inside the housing (1), and are connected to the driving electric motor by means of the gearbox; a gear set is provided inside the gearbox; several push plates (5) and several serrated rings (6) are mounted inside the housing (1); slicing knives (7) are mounted between the serrated rings (6), and the serrated rings (6) are perpendicular to the slicing knives (7); and linkage rings (8) are mounted at front and rear ends of each slicing knife (7). The device is provided with two types of crushing mechanisms and can perform targeted crushing according to the hardness of kitchen waste, and an extrusion function is added before the crushed kitchen waste leaves the housing, so as to preliminarily remove water from the crushed kitchen waste.

Description

A spiral sorting device for kitchen waste based on hardness screening Technical Field

[0001] The present invention relates to the technical field of food waste processing, and in particular to a food waste spiral sorting device based on hardness screening. Background Art

[0002] With the continuous development of my country's social economy and people's lives, and the continuous advancement of domestic waste classification work across the country, the demand for rapid treatment technology of domestic kitchen waste is increasing, and the problem of domestic waste treatment is becoming more and more prominent. The problem of domestic waste treatment in my country has always been a problem that has not been well solved. Kitchen waste has a high water content, rots and deteriorates quickly, and is very easy to produce odor. It is easy to cause damage to the surrounding environment in the storage and transportation environment. Moreover, kitchen waste is mainly composed of organic matter, which is easy to breed bacteria, become a medium for spreading diseases, and endanger human health.

[0003] Kitchen waste often contains plastic bottles, large bones, chopsticks, and other long or round objects. These materials often cannot be shredded properly and can cause shredder failures. Alternatively, large pieces of material and long fibers can be mixed in with the material, affecting the drying process. To address this, traditional methods generally rely on manual sorting. This wastes a lot of manpower and resources, and the sorting results vary from person to person, making them difficult to guarantee.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide a spiral sorting device for food waste based on hardness screening to solve the problems raised in the above background technology.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a spiral sorting device for food waste based on hardness screening, comprising a housing, a feed plate, a discharge plate, a gear box, and a drive motor mounted on the outside of the housing, two crushing rollers mounted inside the housing, the two crushing rollers being connected to the drive motor via a gear box, and a gear set disposed inside the gear box;

[0007] The interior of the shell is provided with a plurality of push plates and a plurality of serrated rings, slicing knives are installed between the serrated rings, the serrated rings are perpendicular to the slicing knives, the front and rear ends of the slicing knives are provided with linkage rings, the outer side of the serrated rings is provided with a fixing plate, the lower end of the shell is provided with a metal mesh, and the lower end of the metal mesh is provided with a water outlet; the driving motor at the front end of the shell is started, and the driving motor drives the crushing roller to rotate through the gear set inside the gear box, and the two crushing rollers rotate in opposite directions, wherein the rear end of the shell is provided with a driving motor, and the driving motor drives the push plate to work through the gear, so that the push plate is moved outside The shell makes a circular motion inside, and the food waste to be processed enters the shell through the feed plate. The push plate moves the food waste above the inside of the serrated ring, causing the food waste to rise along the inner wall of the serrated ring. The push plate is arranged obliquely between the linkage rings. When the push plate rises to a certain height, the height of the side of the push plate close to the crushing roller is lower than the height of the side of the push plate close to the serrated ring. The food waste on the push plate will slide along the outer wall of the push plate into the groove between the crushing rollers. The crushing rollers crush the food waste. Finally, the crushed food waste falls through the gap of the serrated ring to the bottom of the shell.

[0008] Furthermore, the pulverizing roller includes an action shaft and pulverizing teeth. The action shaft is composed of a cylindrical shaft and a conical shaft. The side of the conical shaft with a smaller outer diameter is connected to the housing on the side where the feed plate is installed, and the side of the conical shaft with a larger outer diameter is connected to the cylindrical shaft. The pulverizing teeth are cylindrical in shape when rotating. The special-shaped structure of the pulverizing roller ensures that the pulverizing effect on the side of the pulverizing roller close to the feed plate is lower than the pulverizing effect on the side of the pulverizing roller away from the feed plate. Since the gap between the conical shafts is larger than the gap between the cylindrical shafts, the conical shaft cooperates with the outer pulverizing teeth to perform preliminary pulverization of the food waste. The pulverizing teeth on the outer side of the conical shaft pulverize the high-hardness waste inside the food waste. The pulverizing teeth on the outer side of the cylindrical shaft further pulverize the high-hardness waste inside the food waste, so that the pulverized waste can pass through the gap of the serrated ring.

[0009] Furthermore, the push plate is connected to the linkage ring through a spring shaft, and the push plate is composed of a pressure plate and comb teeth. A plurality of steel wires are installed inside the pressure plate, and the steel wires are perpendicular to the serrated ring. The outer wall of the comb teeth fits with the serrated ring; the push plate is inclined between the linkage rings, and at the same time, the rotation radius of the push plate on the side of the spring shaft close to the crushing roller is equal to the straight-line distance between the crushing roller and the spring shaft. The push plate is inclined relative to the linkage ring, and an acute-angle receiving groove is formed between the push plate and the serrated ring. During the operation of the push plate, the waste inside the acute-angle receiving groove slides along the inner wall of the serrated ring. The torsional force of the spring shaft is greater than the resistance of the waste to the movement on the serrated ring. Therefore, the spring shaft provides a pressure toward the serrated ring for the waste through the push plate in the opposite direction. During the movement of the waste relative to the serrated ring, the push plate preliminarily cuts the waste and segments the long strips of waste. , the high-hardness waste that cannot be cut by the serrated ring under the cooperation of the push plate will then be guided along the inclined surface of the push plate into the groove of the crushing roller, so that the crushing roller can crush the high-hardness waste; the structural setting of the pressure plate, by arranging fine steel wire strips on the push plate, greatly reduces the adhesion area of ​​the waste on the push plate without reducing the pressing effect, and avoids the phenomenon that the waste cannot be separated from the push plate under the action of gravity during the operation of the push plate. The steel wire is a metal wire with a smaller diameter. The pressure formed by the spring shaft directly acts on the waste through the steel wire. The spring shaft cooperates with the steel wire to form a high pressure on the surface of the waste, and preliminarily crushes some of the low-hardness waste to increase the proportion of high-hardness waste inside the accommodating tank, wherein the steel wire is perpendicular to the serrated ring, and the steel wire and the serrated ring cooperate with each other to improve the cutting effect of the waste.

[0010] Furthermore, the serrated ring is provided with serrations on one side close to the comb teeth, the outer surface structure of the serrations coincides with the outer surface structure of the comb teeth, and the length of the comb teeth is greater than the width of the serrated ring; the serrations are arranged to further improve the cutting effect on the waste, and during the period when the push plate slides along the outer wall of the serrated ring, the grooves between the comb teeth clean the outer wall of the serrated ring to prevent the waste from adhering to the surface of the serrated ring for a long time, causing corrosion of the outer wall of the serrated ring, and at the same time, the length of the comb teeth is greater than the width of the serrated ring, so as to pass through the gaps between the serrated rings, to prevent the waste from being stuck in the gaps of the serrated rings, affecting the effect of the serrated ring in separating small-particle waste.

[0011] Furthermore, an inner gear ring is installed at the front and rear ends of the fixed plate, and tooth grooves are provided on the inner wall of the inner gear ring and the outer side of the linkage ring, and the inner gear ring and the linkage ring are connected by gears, and a driving motor is installed on one side of the gear; driving motors are installed on both sides of the outer shell, and the driving motor on the front side of the outer shell is used to drive the crushing roller, and the crushing roller on the rear side of the outer shell realizes the inner gear ring and the linkage ring to rotate toward each other through gears, and the inner gear ring and the linkage ring are both rotatably connected to the outer shell, the inner gear ring is connected to the serrated ring, and the linkage ring is connected to the push plate, thereby realizing relative rotation between the serrated ring and the push plate, so that the push plate further increases the length of the serrated ring on the pushed waste within a cycle of pushing the waste, the inner gear ring and the linkage ring pass through the rear side of the outer shell, and there is an annular shell between the inner gear ring and the linkage ring, which is connected to the outer shell through a bracket, and the driving motor is installed on the annular shell, and drives the inner gear ring and the linkage ring protruding from the outside of the outer shell through gears.

[0012] Furthermore, a conveying plate is installed between the linkage rings, and the conveying plate is in the shape of an auger, with several notches provided between the conveying plates, and a push plate is provided in the middle of the notch, and the outer wall of the conveying plate fits the serrated ring; the conveying plate is installed on the outside of the linkage ring, and under the drive of the driving motor, the conveying plate rotates inside the serrated ring under the transmission of the linkage ring, and the waste enters the cylindrical cavity in the serrated ring in the outer shell through the feed plate. The conveying plate in the working state transfers the waste entering the cavity to the depth of the outer shell to ensure that the waste is evenly spread on the serrated ring, and at the same time disturbs the waste inside the serrated ring, accelerates the serrated ring to screen small particles of waste, so as to reduce the processing intensity of the serrated ring; several notches are provided on the conveying plate to facilitate the push plate to pass through the conveying plate, and at the same time, the space restricted by the notch is the movement space of the push plate, so as to limit the deflection angle of the push plate.

[0013] Furthermore, a torsion spring is installed on one side of the slicing knife, and one side of the torsion spring is connected to the inner gear ring, and a sliding groove is provided on the inner gear ring, and the slicing knife is slidably connected to the inner gear ring through the sliding groove; when the waste moves inside the acute angle receiving groove, part of the waste is inserted into the gap of the serrated ring under the pressure formed by the spring shaft and the push plate, and the setting of the slicing knife will cut the waste inserted into the gap of the serrated ring. Since the slicing knife and the serrated ring are arranged perpendicular to each other, the crushing effect of the waste is further improved; there is a certain amount of high-hardness waste inside the waste, and the slicing knife cannot form a cutting effect on the high-hardness waste. When the high-hardness waste and the slicing knife are When the knife comes into contact, the torsion spring and the inner magnetic ring are connected through the second spring axis. The high-hardness waste pushes the slicing knife to deflect with the second spring axis as the center. At the same time, the angle formed between the action rods at both ends of the torsion spring decreases. The distance between the deflected slicing knife and the saw teeth increases until the high-hardness waste completely passes over the slicing knife. The second spring and the torsion spring are set to protect the slicing knife, and the slide groove provides a limiting effect for the slicing knife. Under normal circumstances, the slicing knife is set at an angle, and the angle formed by the movement direction of the waste material and the slicing knife is an acute angle. When the torsion spring is twisted to the maximum limit, the angle formed between the slicing knife and the movement direction of the high-hardness waste material is an obtuse angle.

[0014] Furthermore, the fixed plate is arc-shaped, and the two ends of the fixed plate are semicircular. The slicing knife is accommodated in the serrated ring. The gap between the fixed plate and the outer shell is smaller than the gap between the serrated ring and the outer shell. The two ends of the fixed plate are connected to the inner gear ring. The driving motor drives the inner gear ring to rotate, and the fixed plate rotates in the outer shell. Since the gap between the fixed plate and the outer shell is smaller than the gap between the serrated ring and the outer shell, and the arc-shaped plate of the fixed plate is set, when the fixed plate passes through the area where the metal mesh is located, the fixed plate squeezes the crushed waste below the inner shell, and the liquid inside the waste is squeezed and passes The waste material finally leaves the shell through the discharge plate. Since the serrated rings are connected by the fixed plate, when the comb teeth slide on the serrated ring to the area where the fixed plate is located, the push plate is forced to deflect with the spring shaft as the center due to the obstruction of the fixed plate until the push plate passes the area where the fixed plate is located. Under the action of the spring shaft, the push plate is quickly reset until it fits with the serrated ring. The speed change effect of the push plate during the reset period causes the waste material adhering to the surface of the push plate to separate under the action of inertia.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This hardness-screening spiral kitchen waste sorting device, through the configuration of the crushing roller and the special design of the internal working shaft of the crushing roller, performs preliminary processing on high-hardness waste near the feed plate. This avoids the crushing roller working at a higher intensity near the feed plate, which would lead to a large difference in working intensity at the front and rear ends of the crushing roller. The area where the cylindrical roller on the working shaft is located performs final processing on high-hardness waste, ensuring that the crushed waste can pass through the gaps in the serrated rings and exit.

[0017] 2. This hardness-based spiral food waste sorting device, through the configuration of the push plate and its own structural design, reduces the adhesion strength between the food waste and the push plate while pushing the food waste. Simultaneously, the comb teeth clean the gaps in the serrated ring. The push plate cooperates with the serrated ring to process the low-hardness food waste, thereby increasing the proportion of high-hardness food waste. Finally, the crushing roller cooperates with the crushing roller to centrally process the high-hardness food waste.

[0018] 3. The spiral sorting device for kitchen waste based on hardness screening accelerates the separation and rapid crushing of low-hardness waste by setting a serrated ring and setting serrations on the inner wall of the serrated ring, so as to avoid the accumulation of waste inside the shell due to continuous addition, and ensure that the volume of waste to be processed inside the shell is within a dynamic range. The serrated ring cooperates with the fixed plate and the inner gear ring to realize the rotation of the serrated ring inside the shell, so that each area on the serrated ring can contact the waste, so as to ensure that each area on the serrated ring has the same working intensity during the processing cycle, and at the same time, the waste leaving the shell is squeezed to achieve the effect of preliminary dehydration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] FIG1 is a schematic diagram of the front view of the present invention;

[0021] FIG2 is a schematic diagram of the push plate of the present invention in a front view and in full cross-section;

[0022] FIG3 is a schematic diagram of the rear side structure of the housing of the present invention;

[0023] FIG4 is a schematic diagram of the structure of the crushing roller from above according to the present invention;

[0024] FIG5 is an enlarged structural diagram of point A in FIG1 of the present invention;

[0025] FIG6 is a schematic diagram of the structure of the slicing knife of the present invention in the front view and after deflection;

[0026] 7 is a schematic diagram of the left side structure of the push plate and the comb teeth engaged with each other;

[0027] FIG8 is a schematic diagram of the left side full cross-section structure of the comb teeth of the present invention.

[0028] In the figure: 1. Shell; 2. Feed plate; 3. Discharge plate; 4. Crushing roller; 401. Action shaft; 402. Crushing teeth; 5. Push plate; 501. Pressure plate; 502. Comb teeth; 6. Serrated ring; 7. Slicer; 701. Torsion spring; 8. Linkage ring; 801. Conveying plate; 9. Fixed plate; 901. Inner gear ring; 11. Metal mesh; 12. Water outlet. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Referring to Figures 1-8 , the present invention provides a technical solution: a spiral sorting device for food waste based on hardness screening, comprising a housing 1, with a feed plate 2, a discharge plate 3, a gear box, and a drive motor mounted on the outside of the housing 1. Two crushing rollers 4 are mounted inside the housing 1, and the two crushing rollers 4 are connected to the drive motor via a gear box, which has a gear set disposed therein.

[0031] Several push plates 5 and several serrated rings 6 are installed inside the housing 1. Slicing knives 7 are installed between the serrated rings 6. The serrated rings 6 are perpendicular to the slicing knives 7. Linkage rings 8 are installed at the front and rear ends of the slicing knives 7. A fixing plate 9 is installed on the outside of the serrated rings 6. A metal mesh 11 is installed at the lower end of the housing 1, and a water outlet 12 is installed at the lower end of the metal mesh 11.

[0032] The crushing roller 4 includes an action shaft 401 and crushing teeth 402. The action shaft 401 is composed of a cylindrical shaft and a frustum shaft. The side of the frustum shaft with a smaller outer diameter is connected to the housing 1 on which the feed plate 2 is installed, and the side of the frustum shaft with a larger outer diameter is connected to the cylindrical shaft. The crushing teeth 402 are cylindrical in the rotating state. The special-shaped design of the action shaft 401 inside the crushing roller 4 performs preliminary processing on the high-hardness waste near the feed plate 2, avoiding the high working intensity of the crushing roller 4 near the feed plate 2, which leads to a large difference in working intensity at the front and rear ends of the crushing roller 4. The area where the cylindrical roller on the action shaft 401 is located performs final processing on the high-hardness waste to ensure that the crushed waste can pass through the gap of the serrated ring 6 and leave;

[0033] The push plate 5 is connected to the linkage ring 8 through a spring shaft. The push plate 5 is composed of a pressure plate 501 and comb teeth 502. A plurality of steel wires are installed inside the pressure plate 501. The steel wires are perpendicular to the serrated ring 6. The outer wall of the comb teeth 502 fits the serrated ring 6.

[0034] The sawtooth ring 6 is provided with sawteeth on one side near the comb teeth 502. The outer surface structure of the sawteeth matches that of the comb teeth 502. The length of the comb teeth 502 is greater than the width of the sawtooth ring 6. The structure of the push plate 5 reduces the adhesion between the food waste and the push plate 5 while pushing the food waste. At the same time, the comb teeth 502 clear the gaps in the sawtooth ring 6. The push plate 5 cooperates with the sawtooth ring 6 to process the low-hardness food waste, thereby increasing the proportion of high-hardness food waste. Finally, the push plate 5 cooperates with the crushing roller 4 to centrally process the high-hardness food waste.

[0035] An inner gear ring 901 is installed at the front and rear ends of the fixed plate 9. The inner wall of the inner gear ring 901 and the outer side of the linkage ring 8 are provided with tooth grooves. The inner gear ring 901 and the linkage ring 8 are connected by a gear. A drive motor is installed on one side of the gear.

[0036] A conveying plate 801 is installed between the linkage rings 8. The conveying plate 801 is in the shape of an auger. Several gaps are set between the conveying plates 801. A push plate 5 is set in the middle of the gap. The outer wall of the conveying plate 801 fits with the serrated ring 6. The serrated setting of the inner wall of the serrated ring 6 accelerates the separation and rapid crushing of low hardness to avoid the accumulation of waste materials inside the shell 1 due to continuous addition, ensuring that the volume of waste materials to be processed inside the shell 1 is within a dynamic range. The serrated ring 6 cooperates with the fixed plate 9 and the inner gear ring 901 to realize the rotation of the serrated ring 6 inside the shell 1, so that each area on the serrated ring 6 can contact with the waste materials, so as to ensure that each area on the serrated ring 6 has the same working intensity during the processing cycle, and at the same time squeezes the waste materials leaving the shell 1 to achieve the effect of preliminary dehydration;

[0037] A torsion spring 701 is installed on one side of the slicing knife 7. One side of the torsion spring 701 is connected to the inner gear ring 901. The inner gear ring 901 is provided with a sliding groove. The slicing knife 7 is slidably connected to the inner gear ring 901 through the sliding groove.

[0038] The fixing plate 9 is arc-shaped, and both ends of the fixing plate 9 are semicircular. The slicing knife 7 is accommodated in the serrated ring 6 . The gap between the fixing plate 9 and the housing 1 is smaller than the gap between the serrated ring 6 and the housing 1 .

[0039] The present invention operates as follows: a drive motor at the front end of the housing 1 is activated, which drives the pulverizing rollers 4 to rotate via a gear train within the gearbox. The two pulverizing rollers 4 rotate in opposite directions. A drive motor is provided at the rear end of the housing 1. The drive motor drives a push plate 5 via gears, causing the push plate 5 to perform a circular motion within the housing 1, feeding the food waste to be processed into the housing 1 through the feed plate 2. The push plate 5 then moves the food waste above the serrated ring 6, causing it to rise along the inner wall of the serrated ring 6. The push plate 5 is obliquely arranged between the linkage rings 8. When the push plate 5 rises to a certain height, the side of the push plate 5 near the pulverizing rollers 4 is lower than the side of the push plate 5 near the serrated ring 6. The food waste on the push plate 5 slides along the outer wall of the push plate 5 into the groove between the pulverizing rollers 4, whereupon the pulverizing rollers 4 crush the food waste. Finally, the crushed food waste falls through the gaps in the serrated ring 6 to the lower part of the housing 1.

[0040] The special-shaped structure of the pulverizing roller 4 results in a lower pulverizing effect on the side of the pulverizing roller 4 closer to the feed plate 2 than on the side of the pulverizing roller 4 farther from the feed plate 2 . Because the gap between the conical shafts is larger than the gap between the cylindrical shafts, the conical shafts cooperate with the outer pulverizing teeth 402 to initially pulverize the food waste. The outer pulverizing teeth 402 of the conical shafts pulverize the higher-hardness waste within the food waste. The outer pulverizing teeth 402 of the cylindrical shafts further pulverize the higher-hardness waste within the food waste, allowing the pulverized waste to pass through the gaps in the serrated ring 6 .

[0041] The push plate 5 is arranged obliquely between the linkage rings 8. At the same time, the rotation radius of the push plate 5 on the side of the spring shaft close to the crushing roller 4 is equal to the straight-line distance between the crushing roller 4 and the spring shaft. The push plate 5 is arranged obliquely relative to the linkage ring 8. An acute-angled receiving groove is formed between the push plate 5 and the serrated ring 6. During the operation of the push plate 5, the waste inside the acute-angled receiving groove slides along the inner wall of the serrated ring 6. The torsional force of the spring shaft is greater than the resistance of the waste to the movement of the serrated ring 6. Therefore, the spring shaft provides a pressure toward the serrated ring 6 for the waste through the push plate 5 in the reverse direction. During the movement of the waste relative to the serrated ring 6, the push plate 5 preliminarily cuts the waste and segments the long strips of waste. The high-hardness waste that cannot be cut by the serrated ring 6 with the cooperation of the push plate 5 is then guided along the inclined surface of the push plate 5 into the groove of the crushing roller 4, so that the crushing roller 4 can crush the high-hardness waste.

[0042] The structural setting of the pressure plate 501 is that a fine steel wire strip is provided on the push plate 5. Under the condition of not reducing the pressing effect, the area of ​​waste material adhering to the push plate 5 is greatly reduced, thereby avoiding the phenomenon that the waste material cannot be separated from the push plate 5 under the action of gravity during the operation of the push plate 5. The steel wire is a metal wire with a smaller diameter. The pressure formed by the spring shaft acts directly on the waste material through the steel wire. The spring shaft cooperates with the steel wire to form a high pressure on the surface of the waste material, and preliminarily crushes some low-hardness waste material to increase the proportion of high-hardness waste material inside the receiving tank. The steel wire is perpendicular to the serrated ring 6, and the steel wire and the serrated ring 6 cooperate with each other to improve the cutting effect of the waste material.

[0043] The serrations are arranged to further improve the cutting effect on the waste. When the push plate 5 slides along the outer wall of the serration ring 6, the grooves between the comb teeth 502 clean the outer wall of the serration ring 6 to prevent the waste from adhering to the surface of the serration ring 6 for a long time, which would cause corrosion on the outer wall of the serration ring 6. At the same time, the length of the comb teeth 502 is greater than the width of the serration ring 6, so as to penetrate the gaps between the serration rings 6 and prevent the waste from being stuck in the gaps between the serration rings 6, which would affect the effect of the serration ring 6 in separating small particles of waste.

[0044] Drive motors are installed on both sides of the shell 1. The drive motor on the front side of the shell 1 is used to drive the crushing roller 4. The crushing roller 4 on the rear side of the shell 1 realizes the relative rotation between the inner gear ring 901 and the linkage ring 8 through gears. The inner gear ring 901 and the linkage ring 8 are both rotatably connected to the shell 1. The inner gear ring 901 is connected to the serrated ring 6, and the linkage ring 8 is connected to the push plate 5, thereby realizing the relative rotation of the serrated ring 6 and the push plate 5, so that the push plate 5 further increases the length of the serrated ring 6 on the pushed waste during a cycle of pushing the waste. The inner gear ring 901 and the linkage ring 8 pass through the rear side of the shell 1. There is an annular shell between the inner gear ring 901 and the linkage ring 8, which is connected to the shell 1 through a bracket. The drive motor is installed on the annular shell, and drives the inner gear ring 901 and the linkage ring 8 protruding from the outside of the shell 1 through gears;

[0045] The conveying plate 801 is installed on the outside of the linkage ring 8. Under the drive of the driving motor, the conveying plate 801 rotates inside the serrated ring 6 under the transmission of the linkage ring 8. The waste enters the cylindrical cavity of the serrated ring 6 in the shell 1 through the feed plate 2. The conveying plate 801 in the working state transfers the waste entering the cavity to the deep part of the shell 1 to ensure that the waste is evenly spread on the serrated ring 6. At the same time, it disturbs the waste inside the serrated ring 6, accelerates the serrated ring 6 to screen small particles of waste, and reduces the processing intensity of the serrated ring 6.

[0046] The conveying plate 801 is provided with a plurality of notches to facilitate the push plate 5 to pass through the conveying plate 801. At the same time, the space limited by the notches is the movement space of the push plate 5 to limit the deflection angle of the push plate 5.

[0047] When the material moves inside the acute angle receiving groove, part of the waste material extends into the gap of the serrated ring 6 under the pressure formed by the spring shaft and the push plate 5. The slicing knife 7 is set to cut the waste material inserted into the gap of the serrated ring 6. Since the slicing knife 7 and the serrated ring 6 are arranged perpendicular to each other, the crushing effect of the waste material is further improved.

[0048] When the scrap material is pulled out of the slicing machine 7, the scrap material is prevented from being cut by the slicing knife 7. When the scrap material is pulled out of the slicing machine 7, the slicing knife 7 is prevented from being cut by the slicing knife 7. When the scrap material is pulled out of the slicing machine 7, the slicing knife 7 is prevented from being cut by the slicing knife 7. When the scrap material is pulled out of the slicing machine 7, the slicing knife 7 is prevented from being cut by the slicing knife 7. When the scrap material is pulled out of the slicing machine 7, the slicing knife 7 is prevented from being cut by the slicing knife 7.

[0049] Both ends of the fixed plate 9 are connected to the inner gear ring 901. The driving motor drives the inner gear ring 901 to rotate, and at the same time, the fixed plate 9 rotates in the outer shell 1. Since the gap between the fixed plate 9 and the outer shell 1 is smaller than the gap between the serrated ring 6 and the outer shell 1, and the fixed plate 9 is arranged in an arc-shaped plate shape, when the fixed plate 9 passes through the area where the metal mesh 11 is located, the fixed plate 9 squeezes the crushed waste below the inner part of the outer shell 1, and the liquid inside the waste is squeezed and leaves through the metal mesh 11. Then, the fixed plate 9 pushes the squeezed waste into the area where the discharge plate 3 is located, and the waste finally leaves the outer shell 1 through the discharge plate 3;

[0050] Since the serrated rings 6 are connected by the fixed plate 9, when the comb teeth 502 slide on the serrated ring 6 to the area where the fixed plate 9 is located, the push plate 5 is forced to deflect with the spring axis as the center due to the obstruction of the fixed plate 9 until the push plate 5 passes the area where the fixed plate 9 is located. Under the action of the spring axis, the push plate 5 is quickly reset until it fits with the serrated ring 6. The speed change effect during the reset of the push plate 5 causes the waste adhered to the surface of the push plate 5 to separate under the action of inertia.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spiral sorting device for food waste based on hardness screening, comprising a housing (1), characterized in that: A feed plate (2), a discharge plate (3), a gear box and a drive motor are installed on the outside of the housing (1); two crushing rollers (4) are installed inside the housing (1); the two crushing rollers (4) are connected to the drive motor via a gear box, and a gear set is arranged inside the gear box; A plurality of push plates (5) and a plurality of sawtooth rings (6) are installed inside the shell (1); a slicing knife (7) is installed between the sawtooth rings (6); the sawtooth rings (6) and the slicing knife (7) are perpendicular to each other; linkage rings (8) are installed at the front and rear ends of the slicing knife (7); a fixing plate (9) is installed on the outer side of the sawtooth ring (6); a metal mesh (11) is installed at the lower end of the shell (1); and a water outlet (12) is installed at the lower end of the metal mesh (11).

2. The spiral sorting device for kitchen waste based on hardness screening according to claim 1, characterized in that: The pulverizing roller (4) comprises an action shaft (401) and pulverizing teeth (402); the action shaft (401) comprises a cylindrical shaft and a truncated cone shaft; the side of the truncated cone shaft with a smaller outer diameter is connected to a housing (1) on which a feed plate (2) is mounted; the side of the truncated cone shaft with a larger outer diameter is connected to the cylindrical shaft; and the pulverizing teeth (402) are cylindrical in shape when in a rotating state.

3. The spiral sorting device for kitchen waste based on hardness screening according to claim 1, characterized in that: The push plate (5) is connected to the linkage ring (8) via a spring shaft. The push plate (5) is composed of a pressure plate (501) and comb teeth (502). A plurality of steel wires are installed inside the pressure plate (501). The steel wires are perpendicular to the sawtooth ring (6). The outer wall of the comb teeth (502) is in contact with the sawtooth ring (6).

4. The spiral sorting device for kitchen waste based on hardness screening according to claim 3 is characterized by: The sawtooth ring (6) is provided with sawtooth on one side close to the comb teeth (502), the outer surface structure of the sawtooth matches the outer surface structure of the comb teeth (502), and the length of the comb teeth (502) is greater than the width of the sawtooth ring (6).

5. The spiral sorting device for kitchen waste based on hardness screening according to claim 1, characterized in that: An inner gear ring (901) is installed at the front and rear ends of the fixed plate (9), and tooth grooves are provided on the inner wall of the inner gear ring (901) and the outer side of the linkage ring (8). The inner gear ring (901) and the linkage ring (8) are connected via a gear, and a driving motor is installed on one side of the gear.

6. The spiral sorting device for kitchen waste based on hardness screening according to claim 5, characterized in that: A conveying plate (801) is installed between the linkage rings (8), the conveying plate (801) is in a auger shape, a plurality of notches are arranged between the conveying plates (801), a push plate (5) is arranged in the middle of the notch, and the outer wall of the conveying plate (801) is in contact with the sawtooth ring (6).

7. The spiral sorting device for kitchen waste based on hardness screening according to claim 6, characterized in that: A torsion spring (701) is installed on one side of the slicing knife (7), and one side of the torsion spring (701) is connected to an inner toothed ring (901). A sliding groove is provided on the inner toothed ring (901), and the slicing knife (7) is slidably connected to the inner toothed ring (901) via the sliding groove.

8. The spiral sorting device for kitchen waste based on hardness screening according to claim 7, characterized in that: The fixing plate (9) is arc-shaped, and both ends of the fixing plate (9) are semicircular. The slicing knife (7) is accommodated in the sawtooth ring (6), and the gap between the fixing plate (9) and the outer shell (1) is smaller than the gap between the sawtooth ring (6) and the outer shell (1).

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