Multi-stage screening transmission mechanism of kitchen waste sorting machine

Abstract

The invention relates to the technical field of kitchen waste treatment, in particular to a multi-stage screening transmission mechanism of a kitchen waste sorting machine, which is suitable for a sorting machine consisting of a sorting box, a top cover, a side plate and a blanking frame, and comprises a transmission assembly, a screening assembly, a material shifting assembly and a material pushing assembly, the two material stirring assemblies are installed on the inner wall of the sorting box and the inner wall of the side plate correspondingly. According to the kitchen waste sorting machine, when kitchen waste with large bone residue proportion generated in hot pot restaurants is classified and screened, the bone residues are firstly screened according to the size, and then the large bone residues are gradually crushed, so that the problems that when an existing kitchen waste sorting machine is used for screening the bone residues, the bone residues cannot be pretreated, and the screening efficiency is high are solved. The space utilization rate of the bag is low when the bone residues are bagged, and the crushing cutter head is easily blocked due to different sizes of the bone residues when the bone residues are subjected to grinding treatment subsequently.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen waste treatment, and particularly to a multi-stage screening transmission mechanism of a kitchen waste separator. Background Art

[0002] With the continuous in-depth promotion of environmental protection technologies and resource recycling utilization technologies, more and more enterprises have begun to focus on aspects such as efficient recycling of waste, remanufacturing technologies, and resource utilization of industrial waste. For catering enterprises, they generate a large volume of kitchen waste every day. Kitchen waste can be mainly divided into food residues and bone residues. Food residues can be converted into organic fertilizers through aerobic or anaerobic composting, and bone residues can be converted into phosphate fertilizer raw materials by being crushed into bone meal. When dealing with kitchen waste mainly composed of food residues and bone residues, a kitchen waste separator is required.

[0003] Among the kitchen waste generated in hot pot restaurants, the proportion of bone residues in the kitchen waste is relatively high, and the sizes of the bones vary, ranging from chicken bones as thin as fingers to larger pork ribs and fish bones. After the kitchen waste is put into the waste separator, the existing waste separators mostly separate the food residues from the bone residues through multi-stage screening. However, in the subsequent process of bagging the bone residues, due to the certain differences in the sizes of the bone residues, there are likely to be large gaps between the bone residues during bagging, resulting in low utilization rate of the bags; in addition, during the grinding process of the bone residues with mixed sizes, uneven feeding is likely to occur when the bone residues with mixed sizes are fed, causing large pieces of bones to concentrate in a certain area of the cutter head, forming a local high-pressure area, while the small pieces of bones in other areas cannot effectively disperse the impact force, resulting in the imbalance of the force on the cutter head, and further causing the crushing cutter head to be stuck, resulting in a significant reduction in the processing efficiency of the bone residues.

[0004] Therefore, a multi-stage screening transmission mechanism of a kitchen waste separator is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a multi-stage screening transmission mechanism for a kitchen waste sorting machine. When sorting kitchen waste with a relatively large proportion of bone residues generated by hot pot restaurants, by first screening the bone residues according to their sizes and then gradually crushing the larger bone residues, it solves the problems that in the existing kitchen waste sorting machine, when screening and processing bone residues, the bone residues cannot be pretreated, resulting in low utilization rate of the bag space when packing the bone residues, and the crushing cutter head is easily stuck due to the uneven sizes of the bone residues during the subsequent grinding process. It has the effect that when screening and processing bone residues, the bone residues can be crushed, so that the size differences of the screened bone residues are not significant. Furthermore, it not only helps to improve the utilization rate of the bag space during bagging, but also can effectively improve the subsequent grinding efficiency of the bone residues.

[0006] To achieve the above object, the present invention provides the following technical solutions: A multi-stage screening transmission mechanism for a kitchen waste sorting machine, applicable to a sorting machine composed of a sorting box, a top cover, side plates and a blanking frame, includes a transmission component, a screening component, a material dialing component and a material pushing component. The transmission component is connected to the blanking frame. The two material dialing components are respectively installed on the inner wall of the sorting box and the inner wall of the side plate. The two screening components are respectively connected to both sides of the blanking frame. The screening component includes a transmission disk and a limiting disk. The transmission disk is in transmission connection with the transmission component. The limiting disk is in limiting fit with the material dialing component. The material pushing component is arranged in the blanking frame and is in transmission connection with the transmission component. The transmission component simultaneously drives the material pushing component and the screening component to rotate. When the material pushing component rotates, it pushes the kitchen waste in the blanking frame towards the screening component. When the screening component rotates, it provides power input for the material dialing component. The material dialing component pushes the kitchen waste towards the side away from the blanking frame.

[0007] In the above solution, for the bone residues with mixed sizes recovered from hot pot restaurants, if we want to avoid uneven feeding during the grinding process, it is necessary to pre-classify and screen the bone residues before grinding, which increases the grinding process and not only significantly reduces the grinding efficiency, but also requires additional screening equipment, resulting in a higher input cost for the resource recycling technology. Therefore, according to the characteristics of the kitchen waste in hot pot restaurants, when sorting the kitchen waste with a relatively large proportion of bone residues, during the multi-stage screening process, the input bone residues are gradually crushed, and then bone residue particles with smaller size differences are formed after screening. This not only helps to improve the utilization rate of the bag space during subsequent bagging, but also can effectively avoid the problem that due to the large size differences of the bone residues, uneven feeding occurs and large pieces of bones are concentrated at a certain position of the cutter head, resulting in the cutter head being stuck due to unbalanced force.

[0008] Preferably, the transmission assembly includes a reduction motor, a fixed cylinder, a transmission shaft, a bevel gear set, a fixed seat, and a driving gear. The reduction motor and the fixed cylinder are both installed on the side wall of the blanking frame. The transmission shaft is rotatably arranged in the fixed cylinder and is in transmission connection with the reduction motor. One end of the transmission shaft extends into the blanking frame. The two fixed seats are symmetrically arranged about the fixed cylinder and installed on the side wall of the blanking frame. The rotating shaft of the driving gear is rotatably connected to the fixed seat, and the driving gear is connected to the transmission disc. The bevel gear set is installed between the end of the rotating shaft of the driving gear and the end of the transmission shaft away from the pushing component.

[0009] Preferably, the transmission assembly is arranged between the two transmission discs, and the outer periphery of the transmission disc is located outside the end of the transmission assembly.

[0010] Preferably, a tooth groove adapted to the driving gear is provided on one side of the transmission disc close to the blanking frame, and an annular groove is provided on one side of the limiting disc away from the blanking frame.

[0011] Preferably, the pushing component includes a rotating shaft and a pushing rotary blade. The rotating shaft is installed on the inner bottom surface of the blanking frame through a limiting frame and is in transmission connection with the transmission shaft. The two pushing rotary blades are symmetrically installed on the outer periphery of the rotating shaft about the central position of the rotating shaft.

[0012] Preferably, the material dialing component includes a cross bar, a limiting block, a roller, a short shaft, and a material dialing rod. The cross bar is attached to the inner wall or side plate of the sorting box. The limiting block is installed at the end of the cross bar and is slidably attached in the annular groove. The roller is rotatably arranged in the limiting block. The short shaft is rotatably arranged at one end of the cross bar. The material dialing rod is rotatably arranged at the central position of the cross bar and extends into the screening component. The short shaft is in transmission connection with the rotating shaft of the roller and the end of the material dialing rod respectively.

[0013] Preferably, the material dialing rod includes a shaft body and a material dialing strip. One end of the shaft body is rotatably connected to the central part of the cross bar, and the other end of the shaft body extends into the inner side of the screening component. The shaft body is in transmission connection with the short shaft. The material dialing strips are equidistantly installed on the outer periphery of the shaft body. Along the axial direction of the shaft body, the material dialing strips are distributed in a cross shape, and the lengths of the material dialing strips are set in equal proportion. When the material dialing strips with equal lengths rotate with the shaft body, the trajectories of their ends are spiral.

[0014] Preferably, the screening component further includes an outer cylinder, a first end ring, an inner cylinder, and a second end ring. The inner cylinder and the outer cylinder are coaxially arranged. The first end ring and the second end ring are both installed between the ends of the outer cylinder and the inner cylinder. The first end ring is located at the end of the outer cylinder close to the blanking frame, and the second end ring is located at the end of the outer cylinder away from the blanking frame. The transmission disc and the limiting disc are respectively installed at the two ends of the outer cylinder, and the transmission disc is located at the end of the outer cylinder close to the blanking frame.

[0015] Preferably, the inner diameter of the inner cylinder near one end of the blanking frame is larger than that of the other end, and annular strips are arranged at equal intervals on the inner circumference of the inner cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the present invention screens the kitchen waste with a relatively large proportion of bone residues generated in a hot pot restaurant, the transmission component provides power input for both the screening component and the pushing component at the same time, quickly divides the kitchen waste put into the blanking frame into two parts, and performs separate multi-stage screening on them, which can effectively improve the screening efficiency of bone residues. At the same time, under the combined action of the screening component and the feeding component, the relatively large bone residues can be pre-crushed, so that the sizes of the screened bone residues are not very different. Furthermore, when bagging, the space utilization rate of the bag can be improved, and when the bone residues are ground later, the jamming efficiency of the crushing cutter head can be reduced, thereby improving the processing efficiency of the bone residues.

[0017] 2. Through the arranged transmission component, screening component and pushing component, the transmission component provides power input for both the screening component and the pushing component at the same time. When the rotation speed of the transmission component is changed according to the quantity of the put bone residues, the screening component and the pushing component can work at the same ratio, and the put bone residues can be equally divided into two parts, avoiding the influence of the accumulation of bone residues on the screening efficiency during the screening process. Thus, the screening efficiency of the bone residues can be greatly improved.

[0018] 3. Through the arranged screening component and feeding component, when the screening component works under the power input of the transmission component, the rotation of the limiting disc and the outer cylinder can provide power input for the feeding component. Under the action of the feeding rod, the relatively large unscreened bone residues are dialed towards the end of the inner cylinder away from the blanking frame, and then as the distance between the inner cylinders gradually decreases, the relatively large bone residues can be gradually crushed, thereby effectively improving the crushing effect of the bone residues, and being conducive to controlling the sizes of the screened bone residues within a relatively small range of differences, so as to improve the utilization rate of the bag during subsequent bagging and the efficiency during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the sectional structural schematic diagram of the sorting box of the present invention; Figure 3 is the structural schematic diagram of the blanking frame of the present invention; Figure 4 is the structural schematic diagram of the blanking frame and the screening component of the present invention; Figure 5 is the structural schematic diagram of the transmission component and the pushing component of the present invention; Figure 6 Structural schematic diagram of the material feeding component of the present invention; Figure 7 Cross-sectional structural schematic diagram of the outer cylinder and the inner cylinder of the present invention; Figure 8 Structural schematic diagram of the inner cylinder and the material feeding rod of the present invention.

[0020] In the figure: 1, sorting box; 2, top cover; 3, side plate; 4, blanking frame; 5, transmission component; 51, reduction motor; 52, fixed cylinder; 53, transmission shaft; 54, bevel gear set; 55, fixed seat; 56, driving tooth; 6, screening component; 61, transmission disc; 611, tooth groove; 62, limiting disc; 621, annular groove; 63, outer cylinder; 64, first end ring; 65, inner cylinder; 651, annular strip; 66, second end ring; 7, material feeding component; 71, cross bar; 72, limiting block; 73, roller; 74, short shaft; 75, material feeding rod; 751, shaft body; 752, material feeding strip; 8, material pushing component; 81, rotating shaft; 82, material pushing rotating blade. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 8 , the present invention provides a multi-stage screening transmission mechanism for a kitchen waste sorting machine, and the technical solution is as follows: Refer to Figures 1 - 3, a multi-stage screening transmission mechanism for a kitchen waste separator, which is applicable to a separator composed of a separation box 1, a top cover 2, side plates 3 and a blanking frame 4. A partition is installed in the separation box 1, and the partition is used to separate the screened bone residues and food residues. An openable flap is installed on one side of the separation box 1. After the flap is opened, the bone residues and food residues sorted and stacked after screening in the separation box 1 can be taken out. The top cover 2 is slidably arranged on the top of the separation box 1. When putting bone residues into the separation box 1, the top cover 2 is slid to the edge side of the surface of the separation box 1, thereby opening the feeding port under the top cover 2. The side plates 3 are hermetically installed on the side walls of the separation box 1. The blanking frame 4 is installed inside the separation box 1. A connecting frame is installed between the top of the blanking frame 4 and the separation box 1 to quickly guide the put bone residues into the blanking frame 4. It includes a transmission component 5, a screening component 6, a feeding component 7 and a pushing component 8. The transmission component 5 is connected to the blanking frame 4. Two feeding components 7 are respectively installed on the inner wall of the separation box 1 and the inner wall of the side plate 3. Two screening components 6 are respectively connected to both sides of the blanking frame 4. The screening component 6 is rotatably connected to the blanking frame 4, and the end of the screening component 6 is attached to the side wall of the blanking frame 4. The screening component 6 includes a transmission disk 61 and a limit disk 62. The transmission disk 61 is in transmission connection with the transmission component 5. When the transmission component 5 is started, the screening component 6 is driven to rotate integrally through the transmission disk 61. The limit disk 62 is in limit fit with the feeding component 7. When the screening component 6 rotates, power input is provided for the feeding component 7 through the relative rotation of the limit disk 62 and the feeding component 7, so that the feeding component 7 drives the bone residues inside the screening component 6 to continuously move away from the blanking frame 4. The pushing component 8 is arranged inside the blanking frame 4, and the pushing component 8 is in transmission connection with the transmission component 5. When the transmission component 5 is started, the two pushing components 8 rotate in opposite directions, thereby pushing the bone residues in the blanking frame 4 into the two screening components 6 respectively. The transmission component 5 drives the pushing component 8 and the screening component 6 to rotate at the same time. When the pushing component 8 rotates, it pushes the kitchen waste in the blanking frame 4 into the screening component 6. When the screening component 6 rotates, power input is provided for the feeding component 7, and the feeding component 7 pushes the kitchen waste to move away from the blanking frame 4.

[0023] Refer to Figure 2 and Figure 5As an embodiment of the present invention, specifically, the transmission assembly 5 includes a reduction motor 51, a fixed cylinder 52, a transmission shaft 53, a bevel gear set 54, a fixed seat 55 and a driving gear 56. The reduction motor 51 and the fixed cylinder 52 are both installed on the side wall of the blanking frame 4, and the reduction motor 51 and the fixed cylinder 52 are located on the same side of the blanking frame 4. The transmission shaft 53 is rotatably arranged in the fixed cylinder 52, and the transmission shaft 53 is transmission-connected with the reduction motor 51. The outer periphery of the transmission shaft 53 is located inside the fixed cylinder 52 and a bevel gear is installed, and the end of the output shaft of the reduction motor 51 extends to the end inside the fixed cylinder 52. A bevel gear is also installed, so that when the reduction motor 51 is started, the transmission shaft 53 can be driven to rotate. One end of the transmission shaft 53 extends into the blanking frame 4. Two fixed seats 55 are symmetrically arranged about the fixed cylinder 52 and installed on the side wall of the blanking frame 4. The rotating shaft of the driving tooth 56 is rotatably connected to the fixed seat 55, and the driving tooth 56 is connected to the transmission disk 61. When the driving tooth 56 is driven by the transmission shaft 53 through the bevel gear set 54, the transmission disk 61 can be driven to rotate, thereby providing power input for the screening component 6. The bevel gear set 54 is installed between the rotating shaft end of the driving tooth 56 and the end of the transmission shaft 53 away from the pushing component 8.

[0024] Reference Figure 2 As an embodiment of the present invention, specifically, the transmission assembly 5 is arranged between two transmission disks 61, and the outer periphery of the transmission disk 61 is located outside the end of the transmission assembly 5. The transmission assembly 5 is located on the side wall of the blanking frame 4 and is shielded and protected by the two transmission disks 61. Therefore, when performing multi-stage screening of bone residues, the bone residues thrown out by the screening will not fall into the transmission assembly 5, thereby ensuring the smooth operation of the transmission assembly 5.

[0025] Reference Figure 4 As an embodiment of the present invention, specifically, a tooth groove 611 adapted to the driving tooth 56 is opened on the side of the transmission disc 61 close to the blanking frame 4. Under the action of the tooth groove 611, when the driving tooth 56 rotates, the transmission disc 61 can be driven to rotate, thereby providing power input for the screening component 6. A ring groove 621 is opened on the side of the limit disc 62 away from the blanking frame 4. The ring groove 621 is used to fit with the material shifting component 7, thereby limiting the screening component 6, thereby ensuring the stability of the screening component 6 during rotation.

[0026] Reference Figure 5, as an embodiment of the present invention, specifically, the material pushing assembly 8 includes a rotating shaft 81 and a material pushing rotating blade 82. The rotating shaft 81 is installed on the inner bottom surface of the blanking frame 4 through a limiting frame, and the rotating shaft 81 is in transmission connection with the transmission shaft 53. The ends of the rotating shaft 81 and the transmission shaft 53 are both installed with matching bevel gears. Thus, the rotating shaft 81 can be driven to rotate by the transmission shaft 53. Two material pushing rotating blades 82 are symmetrically installed on the outer circumference of the rotating shaft 81 with respect to the central position of the rotating shaft 81. The rotation directions of the two rotating blades are opposite. When the transmission shaft 53 drives the two rotating shafts 81 to rotate simultaneously, the two rotating blades push the bone residues in the blanking frame 4 in two directions at the same time, so that the bone residues evenly enter the two screening assemblies 6 inside.

[0027] Refer to Figure 6 , as an embodiment of the present invention, specifically, the material dialing assembly 7 includes a cross bar 71, a limiting block 72, a roller 73, a short shaft 74 and a material dialing rod 75. The cross bar 71 is attached to the inner wall of the sorting box 1 or the side plate 3. The limiting block 72 is installed at the end of the cross bar 71, and the limiting block 72 is slidably attached to the annular groove 621. The roller 73 is rotatably arranged in the limiting block 72. The short shaft 74 is rotatably arranged at one end of the cross bar 71. The material dialing rod 75 is rotatably arranged at the central position of the cross bar 71, and the material dialing rod 75 extends into the screening assembly 6. The short shaft 74 is in transmission connection with the roller 73 rotating shaft and the end of the material dialing rod 75 through gears and chains respectively.

[0028] Refer to Figure 8 , as an embodiment of the present invention, specifically, the material dialing rod 75 includes a shaft body 751 and a material dialing strip 752. One end of the shaft body 751 is rotatably connected to the central part of the cross bar 71, and the other end of the shaft body 751 extends into the inner side of the screening assembly 6. The shaft body 751 is in transmission connection with the short shaft 74. When the short shaft 74 rotates, the material dialing strip 752 is driven to rotate by the shaft body 751. The material dialing strips 752 are equidistantly installed on the outer circumference of the shaft body 751. Along the axial direction of the shaft body 751, the material dialing strips 752 are distributed in a cross shape, and the lengths of the material dialing strips 752 are set in equal proportion. When the material dialing strips 752 with equal lengths rotate with the shaft body 751, the trajectories of their ends are spiral. The closer the material dialing strip 752 is to the second end ring 66, the shorter its length. When the limiting disc 62 rotates, the limiting disc 62 rotates and drives the roller 73 to rotate. The roller 73 drives the shaft body 751 to rotate through the corresponding gears and chains. Thus, when the inner cylinder 65 rotates, the shaft body 751 and the material dialing strips 752 rotate simultaneously. Then, under the action of the spirally distributed material dialing strips 752, the bone residues can be dialed along the inner circumference of the inner cylinder 65 towards the second end ring 66 side.

[0029] Refer to Figure 7, as an embodiment of the present invention, specifically, the screening assembly 6 further includes an outer cylinder 63, a first end ring 64, an inner cylinder 65, and a second end ring 66. The inner cylinder 65 and the outer cylinder 63 are coaxially arranged. The outer cylinder 63 is composed of two annular sieves with different hole sizes, and the connection part of the two annular sieves is rotationally attached to the partition plate. The annular sieve with a smaller hole diameter is located at one end of the annular sieve with a larger hole diameter closer to the blanking frame 4. When the outer cylinder 63 rotates, the delicate and smaller food residues fall on one side of the partition plate through the annular sieve with a smaller hole diameter, and the crushed bone residues pass through the annular sieve with a larger hole diameter and fall on the other side of the partition plate. The first end ring 64 and the second end ring 66 are both installed between the ends of the outer cylinder 63 and the inner cylinder 65. The first end ring 64 is located at one end of the outer cylinder 63 closer to the blanking frame 4, and the second end ring 66 is located at one end of the outer cylinder 63 away from the blanking frame 4. The transmission disc 61 and the limit disc 62 are respectively installed at both ends of the outer cylinder 63, and the transmission disc 61 is located at one end of the outer cylinder 63 closer to the blanking frame 4.

[0030] Referring to Figure 7 , as an embodiment of the present invention, specifically, the inner diameter of the inner circumference of the inner cylinder 65 at one end closer to the blanking frame 4 is larger than that at the other end. When the bone residues move along the inner circumference of the inner cylinder 65 towards the second end ring 66, due to the gradually decreasing inner diameter of the inner circumference of the inner cylinder 65, the larger bone residues are continuously crushed by being squeezed by the inner wall of the inner cylinder 65. This can not only ensure the crushing effect of the bone residues but also effectively reduce the wear range of the inner cylinder 65, thereby extending the service life of the inner cylinder 65. Moreover, annular strips 651 are equally spaced and attached to the inner circumference of the inner cylinder 65. The annular strips 651 can exert an increased pressure on the bone residues, which is beneficial to the rapid crushing of the bone residues.

[0031] Working principle: Open the top cover 2 and pre-connect the power supply of the reduction motor 51. Then, put the kitchen waste with a large proportion of bone residues generated in the hot pot restaurant into the blanking frame 4. The transmission assembly 5 simultaneously provides power input for the screening assembly 6 and the pushing assembly 8. The two pushing assemblies 8 divide the kitchen waste in the blanking frame 4 into two parts and push it into the screening assembly 6. The rotating screening assembly 6 performs multi-stage screening on the kitchen waste. The delicate food residues quickly pass through the inner cylinder 65 and then fall from the annular screen with a smaller hole diameter of the outer cylinder 63 to one side of the partition (the food residues fall between the two partitions). The smaller bone residues (with a size larger than the diameter of the smaller holes of the annular screen) quickly pass through the annular screens with larger hole diameters on the inner cylinder 65 and the outer cylinder 63 and then fall on the other side of the partition. The larger bone residues remaining inside the inner cylinder 65 are continuously moved along the inside of the inner cylinder 65 towards the side of the limit disk 62 in the corresponding screening assembly 7 under the action of the material shifting assembly 7. During this process, they are gradually broken until they pass through the annular screens with larger hole diameters on the inner cylinder 65 and the outer cylinder 63 and then fall. Then, open the flap to bag the bone residues with smaller size differences after screening; Specifically, the output shaft of the reduction motor 51 first drives the transmission shaft 53 to rotate. The transmission shaft 53 drives the drive gear 56 and the rotating shaft 81 to rotate respectively through two sets of bevel gear sets 54 with different sizes at both ends. When the pushing spiral blade 82 on the outer circumference of the rotating shaft 81 rotates, it pushes the bone residues falling into the blanking frame 4 towards the inside of the corresponding inner cylinder 65. The transmission disk 61 rotates accordingly under the action of the tooth groove 611 engaged with the drive gear 56. Furthermore, the outer cylinder 63, the inner cylinder 65, the limit disk 62, the first end ring 64, and the second end ring 66 all rotate together. The smaller bone residues quickly pass through the inner cylinder 65 and the outer cylinder 63 in sequence and then fall on the corresponding side inside the sorting box 1; When the limit disk 62 rotates, since the limit disk 62 rotates while the limit block 72 does not rotate, the roller 73 rotates under the action of the limit disk 62. Furthermore, the roller 73 drives the shaft body 751 to rotate through the short shaft 74. Under the action of the material shifting bars 752 spirally distributed on the outer circumference of the shaft body 751 in the same circumferential plane, the larger bone residues remaining inside the inner cylinder 65 are driven to move towards the side away from the blanking frame 4 inside the inner cylinder 65. During this process, as the inner diameter of the inner cylinder 65 gradually decreases, the remaining bone residues are gradually squeezed and broken until they pass through the inner cylinder 65 and the outer cylinder 63 in sequence and then fall into the sorting box 1.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening drive mechanism for a kitchen waste separator, applicable to a separator composed of a separation box (1), a top cover (2), side plates (3), and a blanking frame (4), characterized in that: It includes a transmission component (5), a screening component (6), a feeding component (7), and a pusher component (8). The transmission component (5) is connected to the blanking frame (4). The two feeding components (7) are respectively installed on the inner wall of the sorting box (1) and the inner wall of the side plate (3). The two screening components (6) are respectively connected to both sides of the blanking frame (4). The screening component (6) includes a transmission disk (61) and a limiting disk (62). The transmission disk (61) is in transmission connection with the transmission component (5). The limiting disk (62) is in limiting fit with the feeding component (7). The pusher component (8) is arranged in the blanking frame (4), and the pusher component (8) is in transmission connection with the transmission component (5). The transmission component (5) simultaneously drives the pusher component (8) and the screening component (6) to rotate. When the pusher component (8) rotates, it pushes the kitchen waste in the blanking frame (4) to move into the screening component (6). When the screening component (6) rotates, it provides power input to the feeding component (7). The feeding component (7) pushes the kitchen waste to move away from the blanking frame (4).

2. The multi-stage screening transmission mechanism of the kitchen waste sorting machine according to claim 1, characterized in that: The transmission component (5) includes a reduction motor (51), a fixed cylinder (52), a transmission shaft (53), a bevel gear set (54), a fixed seat (55), and a driving tooth (56). The reduction motor (51) and the fixed cylinder (52) are both installed on the side wall of the blanking frame (4). The transmission shaft (53) is rotatably arranged in the fixed cylinder (52), and the transmission shaft (53) is in transmission connection with the reduction motor (51). One end of the transmission shaft (53) extends into the blanking frame (4). The two fixed seats (55) are symmetrically arranged about the fixed cylinder (52) and installed on the side wall of the blanking frame (4). The rotating shaft of the driving tooth (56) is rotatably connected to the fixed seat (55), and the driving tooth (56) is connected to the transmission disk (61). The bevel gear set (54) is installed between the end of the rotating shaft of the driving tooth (56) and the end of the transmission shaft (53) far from the pusher component (8).

3. The multi-stage screening transmission mechanism of the kitchen waste sorting machine according to claim 2, wherein: The transmission component (5) is arranged between the two transmission disks (61), and the outer circumference of the transmission disk (61) is located outside the end of the transmission component (5).

4. The multi-stage screening drive mechanism of the kitchen waste sorting machine according to claim 3, characterized in that: On the side of the transmission disk (61) close to the blanking frame (4), a tooth groove (611) adapted to the driving tooth (56) is provided. On the side of the limiting disk (62) far from the blanking frame (4), an annular groove (621) is provided.

5. The multi-stage screening transmission mechanism of the kitchen waste sorting machine according to claim 2, characterized in that: The pusher component (8) includes a rotating shaft (81) and a pusher vane (82). The rotating shaft (81) is installed on the inner bottom surface of the blanking frame (4) through a limiting frame, and the rotating shaft (81) is in transmission connection with the transmission shaft (53). The two pusher vanes (82) are symmetrically installed on the outer circumference of the rotating shaft (81) about the central position of the rotating shaft (81).

6. The multi-stage screening transmission mechanism of the kitchen waste sorting machine according to claim 1, characterized in that: The material shifting assembly (7) comprises a cross bar (71), a stop block (72), a roller (73), a short shaft (74) and a material shifting rod (75); the cross bar (71) is fitted with an inner wall or a side plate (3) of the sorting box (1); the stop block (72) is mounted at an end of the cross bar (71), and the stop block (72) is slidably fitted in the annular groove (621); the roller (73) is rotatably arranged in the stop block (72); the short shaft (74) is rotatably arranged at one end of the cross bar (71); the material shifting rod (75) is rotatably arranged at a center position of the cross bar (71), and the material shifting rod (75) extends into the interior of the screening assembly (6); and the short shaft (74) is respectively transmission-connected to a rotating shaft of the roller (73) and an end of the material shifting rod (75).

7. The multi-stage screening transmission mechanism of the kitchen waste sorting machine according to claim 6, wherein: The material shifting rod (75) comprises a shaft (751) and a material shifting bar (752); one end of the shaft (751) is rotatably connected to the center of the cross bar (71), and the other end of the shaft (751) extends to the inside of the screening assembly (6); the shaft (751) is transmission-connected to the short shaft (74); the material shifting bars (752) are installed at equal intervals on the outer periphery of the shaft (751); the material shifting bars (752) are distributed in a cross shape along the axis direction of the shaft (751); the lengths of the material shifting bars (752) are arranged in equal proportions; when the material shifting bars (752) of equal length rotate with the shaft (751), their end tracks are spiral.

8. The multi-stage screening transmission mechanism of the kitchen waste sorting machine according to claim 7, characterized in that: The screening assembly (6) further comprises an outer cylinder (63), a first end ring (64), an inner cylinder (65) and a second end ring (66); the inner cylinder (65) and the outer cylinder (63) are coaxially arranged; the first end ring (64) and the second end ring (66) are both mounted between the end of the outer cylinder (63) and the end of the inner cylinder (65); the first end ring (64) is located at an end of the outer cylinder (63) close to the blanking frame (4); the second end ring (66) is located at an end of the outer cylinder (63) away from the blanking frame (4); the transmission plate (61) and the limit plate (62) are respectively mounted at two ends of the outer cylinder (63); and the transmission plate (61) is located at an end of the outer cylinder (63) close to the blanking frame (4).

9. The multi-stage screening drive mechanism of the kitchen waste sorting machine according to claim 8, characterized in that: The inner diameter of one end of the inner cylinder (65) close to the blanking frame (4) is larger than the inner diameter of the other end, and annular strips (651) arranged at equal intervals are fitted to the inner circumference of the inner cylinder (65).

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