A household garbage bag breaking device matched with a community intelligent garbage can

Abstract

A household waste bag-breaking device adapted to a community smart trash can includes a frame (1), a connector (2), a cross beam (3), a straight beam (4), a gravity sensor (5), a robotic arm (6), a bag-breaking assembly (7), a vertical screw assembly (8), a baffle (9), a garbage bag transmission assembly (10), a transmission assembly protective cover (11), a partition (12), a garbage bag guide plate (13), a horizontal screw assembly (14), a horizontal optical bar follower assembly (15), a vertical optical bar follower assembly (16), a robotic arm connector (17), a shell (18), and a control unit. This invention can be adapted to existing smart waste recycling bins by adding various forms of connection channels to the disposal ports and centralized garbage bag recycling bins. It can also be used as the main body to upgrade and transform the functions of existing smart waste recycling bins. It has good compatibility and reliability with community smart waste sorting recycling bins and represents a substantial technological advancement compared to existing technologies.

Description

Technical Field

[0001] This invention relates to a mechanical device, specifically a bag-breaking device for bagged household waste, and more specifically, a bag-breaking device for household waste that is compatible with smart community waste bins. Background Technology

[0002] The sorting, recycling, and resource utilization of household waste is not only an important approach to achieving the resource reuse of urban solid waste, but also a crucial measure for energy conservation and emission reduction.

[0003] In countries like Germany, where household waste sorting and recycling were implemented earlier, food waste is directly discharged into underground pipe networks via dedicated pipelines and then connected to biomass treatment plants. Other household waste is sorted by type, bagged in different colored bags, and collected at designated times and locations before being transported by personnel to appropriate treatment facilities. my country's implementation of household waste sorting and recycling started relatively late, but at a high level. In leading cities like Hangzhou, numerous smart waste sorting and recycling bins have been placed at major sources of household waste, such as residential communities, based on factors like the number of residents and their characteristics. These smart bins can be broadly categorized into two types: bagless and standard. Bagless bins require residents to empty the waste from its bag before depositing it into the bin; standard bins allow bagged waste to be deposited directly into the bin. When using bagless recycling smart waste sorting and recycling bins, residents inevitably encounter problems such as contamination of the bin openings, splattering of soup and food residue, and unpleasant odors if not cleaned promptly due to the large proportion of "wet waste" in the waste, which is often kitchen waste. Furthermore, dedicated personnel are needed to supervise whether waste is mixed into the garbage bags. Therefore, the actual usage rate of such smart waste sorting and recycling bins is very low. While conventional smart waste sorting and recycling bins avoid the aforementioned problems associated with bagless recycling bins, the large number of garbage bags entering the bins not only reduces the effective volume of the bins but also significantly increases the workload of subsequent bag removal and processing. More importantly, residents have long been accustomed to disposing of household waste in plastic bags of unknown origin (mostly non-biodegradable plastics), forcing the addition of a bag removal step in subsequent waste disposal. This bag removal process is extremely labor-intensive, inefficient, and the highly perishable nature of household waste poses a significant hazard to disposal personnel. Furthermore, the unique characteristics of household waste make it difficult to utilize it for fuel or fertilizer, forcing most of it to be landfilled. To a certain extent, bagged household waste has become a major source of the currently significant "plastic pollution." Therefore, there is an urgent need to develop bag-breaking devices for household waste that are compatible with smart waste sorting and recycling bins in communities. This will promote the widespread and effective use of smart waste sorting and recycling bins, and ultimately, upgrade equipment to facilitate the resource utilization of sorted and recycled household waste.

[0004] Based on the generation, composition, and disposal habits of community residents' household waste, as well as the functional characteristics of smart waste sorting and recycling bins, the bag-breaking device for household waste adapted to these bins presents the following technical challenges. First, the sizes and capacities of garbage bags vary, resulting in inconsistent shapes, volumes, and dimensions of the bagged waste. Therefore, the bag-breaking device must be able to accommodate bags of different sizes. Second, when breaking up bagged waste, it is necessary to avoid or minimize the generation of plastic fragments, and the broken bags should be stored separately for subsequent recycling. This reduces the possibility of plastic bags with adhering perishable substances entering the sorting bins and contaminating recyclable waste such as recyclable cardboard or kitchen waste suitable for animal feed or fertilizer, thus mitigating the risk of "plastic pollution" from bagged waste. Third, since bagged waste is a flexible material, efficiently and reliably breaking up the bags while avoiding fragmentation is also a technical challenge that needs to be addressed. In addition, how to separate as much garbage as possible from the garbage bag after the bagged household waste is broken is also one of the technical challenges that need to be considered.

[0005] However, existing garbage bag breaking devices are mostly designed for large-scale centralized garbage treatment sites, and are not suitable for the use of community garbage disposal in small quantities but with high frequency. In addition, they often break bagged garbage together with the garbage bag (mostly plastic bags), making it difficult to separate the plastic garbage bag from it later.

[0006] For example, the invention patent with application number 202210687974.6 discloses a bag-breaking mechanism with arc-shaped grippers, as well as a garbage station and bag-breaking method. It utilizes arc-shaped grippers to hold garbage bags of different sizes and uses a guide rail assembly to move the gripped garbage bags into a collection bin for breaking. This patent is well-suited for bags of garbage that are properly tied and have a clearly defined tied head, even when gripped from one end by the arc-shaped grippers. However, in reality, the tying of garbage bags varies greatly, and the position after disposal cannot guarantee that the tied head will be facing upwards. Furthermore, gripping the garbage bag from the waist inevitably results in the squeezing out of the bag of garbage with high water content, causing overflow during the gripping process. This is not a problem for large-scale centralized garbage treatment plants, but it is clearly unsuitable for community smart garbage sorting and recycling bins. It will inevitably contaminate the disposal opening, causing the smart garbage sorting and recycling bins to become as dirty and messy as ordinary garbage bins. Meanwhile, the bag-breaking mechanism described in this invention uses integral crushing, meaning that after the bag is broken, the plastic garbage bag and household waste are still mixed together, and it does not have the function of separating the plastic garbage bag from the household waste.

[0007] For example, the invention patent with application number 201710025303.2 addresses the problem of disposable tableware and plastic bags in kitchen waste causing serious entanglement and blockage of subsequent processing equipment, leading to equipment damage. It proposes a bag-breaking machine and a kitchen waste processing device containing the bag-breaking machine. After entering the S-shaped feeding channel, the kitchen waste material passes through a first, second, and third bag-breaking device sequentially. The bag-shaped objects in the material are crushed twice by the moving blades of the first and second bag-breaking devices, eliminating most of the interference from the bag-shaped objects. The third bag-breaking device further crushes the bag-shaped objects, ensuring they are completely broken down. This invention targets kitchen waste biomass utilization enterprises and solves the problem of bag-shaped objects in kitchen waste causing damage to subsequent processing equipment. Its effectiveness is still overall crushing followed by sorting. Clearly, it is not suitable for breaking down the diverse types of bagged household waste in communities, which are processed in small quantities and frequently, and it also involves crushing plastic garbage bags and other household waste as a whole.

[0008] For example, the invention patent with application number 201310112513.7 (bag breaking device and garbage sorting system) describes a bag breaking device that breaks bags by using a flexible part to pull and strike, avoiding tangling, reducing wear, and preventing the bag from being pulled into strips or excessively torn, thereby reducing energy consumption and improving bag breaking efficiency. However, it still crushes the bagged household waste as a whole, that is, it does not have the function of separating garbage bags (most of which are non-degradable plastic products).

[0009] At present, there are some bag-breaking devices that can separate garbage bags or facilitate subsequent sorting of garbage bags during the bag-breaking process, but they generally have problems such as poor bag-breaking effect, low efficiency, high energy consumption, and large space occupation.

[0010] For example, the invention patent with application number 201810783944.9 discloses a garbage bag breaking machine and a garbage washing bag breaking machine. The garbage bag breaking machine described in this patent uses the cooperation of multiple blades on the rotating shaft of the rotating mechanism to "knock" and the protrusions in the housing of the bag breaking mechanism to "impact" the garbage in the garbage bag, shaking it out and breaking it apart. It is more suitable for bagged garbage with loose openings, but it is not effective and efficient for bagged garbage with tightly tied openings, and it may even be unable to break the bag.

[0011] For example, invention patent application number 202410002835.4 discloses an automatic bag-breaking, sorting, collection, and recycling device for kitchen waste. By setting up a primary bag-breaking zone and a secondary bag-breaking zone, it can automatically break open multiple small plastic bags inside a large bag. The primary bag-breaking zone involves inserting two triangular reciprocating blades into the large bag and then relying on a toothed reciprocating blade to break it open. On the one hand, this patent is applicable to enterprises utilizing kitchen waste for biomass utilization; on the other hand, as mentioned earlier, bagged household waste is essentially a flexible body, and it will inevitably yield and deform under stress. Whether the triangular reciprocating blades used in the primary bag-breaking zone of this patent can effectively insert into the garbage bag and whether the toothed reciprocating blades can effectively break the bag are questionable. Furthermore, relying solely on the weight of the waste to separate it from the garbage bag after breaking it will inevitably result in a significant amount of residual waste adhering to the extracted garbage bag.

[0012] In summary, numerous solutions exist for breaking open bags of household waste, highlighting this crucial issue hindering waste sorting and resource recovery. However, existing solutions either completely shred the bagged waste, eliminating the need to secure flexible bags, but making subsequent separation of the bags (often non-biodegradable plastics) from the sorted waste extremely difficult, creating significant obstacles to resource utilization; or they separate the bags or facilitate subsequent sorting, but suffer from poor bag-breaking efficiency and incompatibility with smart waste sorting and recycling bins. Therefore, the lack of compatible bag-breaking devices for smart waste sorting and recycling bins in communities is precisely why residents are reluctant to use these bins, rendering them largely useless, which to some extent restricts the in-depth and effective implementation of waste sorting, recycling, and resource recovery. Summary of the Invention

[0013] The purpose of this invention is to address the aforementioned problems in the classification and recycling of household waste by providing a bag-breaking device for household waste that is compatible with smart waste classification and recycling bins in communities. This device has good compatibility with the smart waste classification and recycling bins already in place. It can limit the "flexible body" of the bagged household waste, thereby preventing the garbage bag from shifting during the breaking process and affecting the breaking effect. Moreover, it enables efficient separation of household waste from the garbage bag and allows for independent collection of the garbage bag.

[0014] The technical solution of this invention is:

[0015] A household waste bag-breaking device adapted to a community smart trash can includes a frame 1, a connector 2, a cross beam 3, a straight beam 4, a gravity sensor 5, a robotic arm 6, a bag-breaking assembly 7, a vertical screw assembly 8, a baffle 9, a garbage bag transmission assembly (10), a transmission assembly protective cover 11, a partition 12, a garbage bag guide plate 13, a horizontal screw assembly 14, a horizontal optical bar follower assembly 15, a vertical optical bar follower assembly 16, a robotic arm connector 17, a housing 18, and a control unit. Two robotic arms 6 are arranged horizontally in parallel to limit the lateral movement of the bagged household waste. Two serrated bag-breaking blades 7-3 in the bag-breaking assembly 7 are arranged vertically in parallel to limit the vertical movement of the bagged household waste. When the two robotic arms 6 grasp the bagged household waste laterally, and the waste falls into the gap between the two serrated bag-breaking blades 7-3 in the vertically arranged bag-breaking assembly 7, its own weight deforms, causing the bagged waste to become lodged in the gap between the two blades 7-3, thus fixing the bagged household waste vertically. The garbage is fixed in position within the bag-breaking device. When the two bag-breaking bottom plate assemblies 7-1, equipped with serrated bag-breaking blades 7-3, flip upwards, they simultaneously break open the garbage bag containing household waste and open a garbage falling channel. Then, two robotic arms 6, gripping the garbage bag, move up and down and stop abruptly to shake off any remaining household waste. Next, the separated garbage bag is placed into the garbage bag guide plate 13, and then falls onto the conveyor belt 10-6, where it is transported by the garbage bag transmission assembly 10, achieving independent collection of the garbage bags. The baffle 9 is bolted to the frame behind the bag-breaking assembly 7, located between the bag-breaking assembly 7 and the garbage bag transmission assembly 10. The transmission assembly protective cover 11 is installed above the conveyor belt 10-6. The partition 12 is bolted to the frame in front of the transmission assembly protective cover 11. The partition 12 has an opening that guides the garbage bag into the conveyor belt in conjunction with the garbage bag guide plate 13. The garbage bag guide plate 13 is bolted to the partition plate 12 and is located below the opening of the partition plate 12, serving to guide the independent collection of garbage bags. The bottom center of the outer shell 18 has an opening as the garbage bag insertion port, and the right side of the outer shell 18, located at the garbage bag conveying assembly 10, also has an opening for the output of garbage bags.

[0016] The robotic arm 6 contains a servo motor and can rotate 360 ​​degrees.

[0017] The bag-breaking assembly 7 consists of a bag-breaking bottom plate assembly 7-1, a pressure plate 7-2, a serrated bag-breaking blade 7-3, and two blade fixing bolts 7-4. The serrated bag-breaking blade 7-3 is fixed to the bag-breaking bottom plate assembly 7-1 by the pressure plate 7-2 and the two blade fixing bolts 7-4. The bag-breaking bottom plate assembly 7-1 consists of a bottom plate 7-1-1, a base 7-1-2, a motor 7-1-3, a motor bracket 7-1-4, and a coupling 7-1-5. One side of the bottom plate 7-1-1 is a rotatable shaft, and the other side is a rectangular fan-shaped surface connected to the shaft. The length of the rectangular fan-shaped surface is shorter than the length of the shaft. One end of the bottom plate 7-1-1 is connected to the base 7-1-2, and the base 7-1-2 is fixedly mounted on the frame 1 with bolts. The other end of the bottom plate 7-1-1 is connected to the coupling 7-1-5, and the other end of the coupling 7-1-5 is connected to the drive motor 7-1-3. The motor 7-1-3 is fixedly mounted on the motor bracket 7-1-4, and the motor bracket 7-1-4 is also fixed to the frame 1 with bolts.

[0018] The bag-breaking components 7 are a pair, arranged longitudinally in the bag-breaking device in a mirror manner, perpendicular to the arrangement direction of the two robotic arms 6 in space. The two shaft ends are fixed by two bases 7-1-2 and the two drive motors 7-1-3 are fixed by two motor brackets 7-1-4, thereby fixing the pair of bag-breaking components 7 to the bottom of the frame 1.

[0019] The vertical lead screw assembly 8 consists of a lead screw motor 8-1, a fixed seat 8-2, a transmission lead screw 8-3, a transmission nut 8-4, a nut seat 8-5, a support seat 8-6, and two reinforcing rods 8-7. The vertical lead screw assembly 8 is connected to the horizontal lead screw assembly 14 via the connecting part on the fixed seat 8-2 and the nut seat 14-4 in the horizontal lead screw assembly 14. The nut seat 8-5 is fitted onto the transmission nut 8-4 and connected to it as a whole by bolts. The nut seat 8-5 is also connected to one end of the cross beam 3 via the connector 2.

[0020] The garbage bag conveying assembly 10 consists of a motor 10-1, a pulley 10-2, a synchronous belt 10-3, a drive shaft 10-4, a driven shaft 10-5, a conveyor belt 10-6, a bushing 10-7, and a motor bracket 10-8. The motor bracket 10-8 is fixed to the frame 1 with bolts. The motor 10-1 is mounted on the motor bracket 10-8. The pulley 10-2 is mounted on the shaft of the motor 10-1. The synchronous belt 10-3 is fitted onto the front end of the pulley 10-2 and the drive shaft 10-4. The bushing 10-7 is fitted onto the rear end of the drive shaft 10-4 and both ends of the driven shaft 10-5. The bushing 10-7 is fixed to the frame 1 with bolts. The conveyor belt 10-6 is fitted onto the two shafts.

[0021] The horizontal lead screw assembly 14 consists of a lead screw motor 14-1, a transmission lead screw 14-2, a transmission nut 14-3, a nut seat 14-4, a motor bracket 14-5, and a bearing seat 14-6. One end of the lead screw motor 14-1 is directly connected to one end of the transmission lead screw 14-2 and is fixedly mounted on the frame 1 via the motor bracket 14-5. The other end of the transmission lead screw 14-2 is fixedly mounted on the frame 1 via the bearing seat 14-6. The nut seat 14-4 is fitted onto the transmission nut 14-3 and connected to it as a whole by bolts. The transmission nut 14-3 is fitted onto the transmission lead screw 14-2. The nut seat 14-4 is bolted to the fixing seat 8-2 of the vertical lead screw assembly 8.

[0022] The horizontal optical bar follower assembly 15 consists of a bearing seat 15-1, an optical bar 15-2, and a square sleeve 15-3. There are two bearing seats 15-1, which are respectively connected to the two ends of the optical bar 15-2 and fixed to the frame 1 by bolts. The square sleeve 15-3 is connected to the vertical optical bar follower assembly 16 by bolts.

[0023] The vertical optical bar follower assembly 16 includes: a left half bearing seat 16-1, a right half bearing seat 16-2, a bearing seat connecting screw 16-3, a vertical optical bar 16-4, a square sleeve 16-5, and a support seat 16-6. The left half bearing seat 16-1 and the right half bearing seat 16-2 are connected into one unit by the bearing seat connecting screw 16-3. The horizontal optical bar follower assembly 15 is connected to the left half bearing seat 16-1 through the connection part. The square sleeve 16-5 is connected to the other end of the cross beam 3 through the connector 2.

[0024] A gravity sensor 5 is installed at the lower ends of the front and rear ends of the cross beam 3. The lower ends of the sensors 5 are connected to the two ends of the straight beam 4. A pair of robotic arms 6 are installed upside down at the lower end of the straight beam 4 via robotic arm connector 17.

[0025] All other parts not covered in this invention can be implemented using existing technologies.

[0026] The beneficial effects of this invention are:

[0027] (1) The bag-breaking device for household waste described in this invention uses two robotic arms arranged horizontally in parallel to achieve lateral limitation of the bag-breaking waste, and the bag-breaking component and the two serrated bag-breaking blades arranged vertically in parallel to achieve longitudinal limitation of the bag-breaking waste. This creatively solves the problem that bag-breaking effect and low efficiency are caused by the fact that the bag-breaking waste itself is a flexible body and is prone to yielding and deformation under force during the bag-breaking process. The robotic arms can rotate 360° and can move freely in both horizontal and vertical directions, thus having good applicability to bag-breaking waste of different sizes and shapes.

[0028] (2) The bag-breaking device for household waste described in this invention has the function of centrally recycling the garbage bags (mostly non-degradable plastic products) used for household waste, reducing the difficulty of subsequent processing of household waste and the potential risk of serious "plastic pollution"; moreover, it creatively achieves a "shaking" function through the up-and-down reciprocating motion and emergency stop of the robotic arm component, which can shake off the residual household waste in the garbage bag, ensuring the separation effect between the bag waste and the garbage bag, which is conducive to the classified recycling and resource reuse of household waste including the garbage bag.

[0029] (3) The bag-breaking device for household waste described in this invention can be adapted to existing smart waste recycling bins and centralized waste bag recycling bins by adding various forms of connection channels. It can also be used as the main body to upgrade and transform existing smart waste recycling bins. It has good compatibility and reliability with smart waste recycling bins used in communities and has made substantial technological progress compared with existing technologies. Attached Figure Description

[0030] Figure 1 This is an overall schematic diagram of the household waste bag breaking device (excluding the outer shell) described in this invention.

[0031] Figure 2 This is a schematic diagram of the external appearance of the household waste bag breaking device described in this invention.

[0032] Figure 3 This is a schematic diagram of the bag-breaking component in the device of the present invention.

[0033] Figure 4 This is a schematic diagram of the connection between the vertical lead screw assembly and the horizontal lead screw assembly of the device of the present invention.

[0034] Figure 5 This is a schematic diagram showing the connection between the vertical lead screw assembly, the vertical optical guide assembly, the horizontal beam, the robotic arm, and the cross beam of the device of the present invention.

[0035] Figure 6 This is a schematic diagram of the garbage bag conveying component of the device of the present invention.

[0036] Figure 7 This is a schematic diagram of the horizontal lead screw assembly and the horizontal optical guide follower assembly of the device of the present invention.

[0037] Figure 8 This is a schematic diagram showing the connection between the horizontal optical bar follower component and the vertical optical bar follower component of the device of the present invention.

[0038] Figure 9 This is a schematic diagram of the device of the present invention used in conjunction with a smart trash can in a community.

[0039] In the diagram: 1 is the frame, 2 is the connector, 3 is the crossbeam, 4 is the straight beam, 5 is the gravity sensor, 6 is the robotic arm, 7 is the bag-breaking assembly, 7-1 is the bag-breaking bottom plate assembly, 7-1-1 is the bottom plate, 7-1-2 is the base, 7-1-3 and 10-1 are the motors, 7-1-4, 10-8 and 14-5 are the motor brackets, 7-1-5 is the coupling, 7-2 is the pressure plate, 7-3 is the serrated bag-breaking blade, 7-4 is the blade fixing bolt, 8 is the vertical lead screw assembly, 8-1 and 14-1 are the lead screw motors, 8-2 is the fixed seat, 8-3 and 14-2 are the transmission lead screws, 8-4 and 14-3 are the transmission nuts, 8-5 and 14-4 are the nut seats, 8-6 is the support seat, 8-7 is the reinforcement. 9 is a rod, 10 is a baffle, 10 is a garbage bag conveying assembly, 10-2 is a pulley, 10-3 is a synchronous belt, 10-4 is a drive shaft, 10-5 is a driven shaft, 10-6 is a conveyor belt, 10-7 is a bushing, 11 is a protective cover for the conveying assembly, 12 is a partition, 13 is a garbage bag guide plate, 14 is a horizontal lead screw assembly, 15 is a horizontal optical rod follower assembly, 14-6 and 15-1 are bearing seats, 15-2 is an optical rod, 15-3 and 16-5 are square sleeves, 16 is a vertical optical rod follower assembly, 16-1 is a left half bearing seat, 16-2 is a right half bearing seat, 16-3 is a bearing seat connecting screw, 16-4 is a vertical optical rod, 16-6 is a support base, 17 is a robot arm connector, and 18 is a housing. Detailed Implementation

[0040] The following description, in conjunction with embodiments of the present invention and appendices, Figure 1-9 The present invention will be further described in detail below. It should be understood that the specific embodiments described herein are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0041] like Figure 1-8 As shown.

[0042] A household waste bag-breaking device adapted to a community smart trash can includes a frame 1, a connector 2, a crossbeam 3, a straight beam 4, a gravity sensor 5, a robotic arm 6, a bag-breaking assembly 7, a vertical screw assembly 8, a baffle 9, a garbage bag conveying assembly 10, a conveying assembly protective cover 11, a partition 12, a garbage bag guide plate 13, a horizontal screw assembly 14, a horizontal optical bar follower assembly 15, a vertical optical bar follower assembly 16, and a robotic arm connector 17. Figure 5 ), outer shell 18 ( Figure 2) and control section. Two robotic arms 6 are arranged horizontally in parallel to limit the lateral movement of the bagged household waste. Two serrated bag-breaking blades 7-3 in the bag-breaking assembly 7 are arranged vertically in parallel to limit the lateral movement of the bagged household waste. When the two robotic arms 6 grasp the bagged household waste laterally, the bagged household waste falls into the gap between the two serrated bag-breaking blades 7-3 in the vertically arranged bag-breaking assembly 7. Its own weight deforms the bagged household waste, causing it to be stuck in the gap between the two serrated bag-breaking blades 7-3, thus fixing the bagged household waste in a fixed position in the bag-breaking device. Moreover, when the two bag-breaking bottom plate assemblies 7-1 equipped with serrated bag-breaking blades 7-3 flip upward, the garbage bag containing household waste is broken open, and the garbage falling channel is opened at the same time. Then, the two robotic arms 6 holding the garbage bag move up and down and stop suddenly to shake off the remaining household waste in the garbage bag. Then, the garbage bag that has been separated from the garbage is put into the garbage bag guide plate 13 and transported by the garbage bag conveying assembly 10 to achieve independent collection of garbage bags. The robotic arm 6 contains a servo motor and can rotate 360 ​​degrees. The baffle 9 is bolted to the frame behind the bag-breaking assembly 7, located between the bag-breaking assembly 7 and the garbage bag conveying assembly 10. The protective cover 11 of the conveying assembly is installed above the conveyor belt 10-6. The partition 12 is bolted to the frame in front of the protective cover 11 of the conveying assembly. The partition 12 has an opening that guides garbage bags into the conveyor belt in conjunction with the garbage bag guide plate 13. The garbage bag guide plate 13 is bolted to the partition 12 and is located below the opening of the partition 12, used to guide the independent collection of garbage bags. The bottom of the outer shell 18 has an opening in the center as a garbage bag inlet, and the right side of the outer shell 18, located at the garbage bag conveying assembly 10, also has an opening for garbage bag output.

[0043] like Figure 1 , Figure 3As shown. The bag-breaking assembly 7 consists of a bag-breaking bottom plate assembly 7-1, a pressure plate 7-2, a serrated bag-breaking blade 7-3, and two blade fixing bolts 7-4. The serrated bag-breaking blade 7-3 is fixed to the bag-breaking bottom plate assembly 7-1 by the pressure plate 7-2 and the two blade fixing bolts 7-4. The bag-breaking bottom plate assembly 7-1 consists of a bottom plate 7-1-1, a base 7-1-2, a motor 7-1-3, a motor bracket 7-1-4, and a coupling 7-1-5. One side of the bottom plate 7-1-1 is a rotatable shaft, and the other side is a rectangular fan-shaped surface connected to the shaft. The length of the rectangular fan-shaped surface is shorter than the length of the shaft. One end of the bottom plate 7-1-1 is connected to the base 7-1-2, and the base 7-1-2 is fixedly mounted on the frame 1 with bolts. The other end of the bottom plate 7-1-1 is connected to the coupling 7-1-5, and the other end of the coupling 7-1-5 is connected to the drive motor 7-1-3. The motor 7-1-3 is fixedly mounted on the motor bracket 7-1-4, and the motor bracket 7-1-4 is also fixed to the frame 1 with bolts. The bag-breaking components 7 are a pair, arranged longitudinally in the bag-breaking device in a mirror manner, perpendicular to the arrangement direction of the two robotic arms 6 in space. The two shaft ends are fixed by two bases 7-1-2 and the two drive motors 7-1-3 are fixed by two motor brackets 7-1-4, thereby fixing the pair of bag-breaking components 7 to the bottom of the frame 1.

[0044] like Figure 4 and 5 As shown. The vertical lead screw assembly 8 consists of a lead screw motor 8-1, a fixed seat 8-2, a transmission lead screw 8-3, a transmission nut 8-4, a nut seat 8-5, a support seat 8-6, and two reinforcing rods 8-7. It is connected to the nut seat 14-4 in the horizontal lead screw assembly 14 through a protruding connection part on the fixed seat 8-2 located next to the lead screw motor 8-1, thereby connecting the vertical lead screw assembly 8 and the horizontal lead screw assembly 14. The nut seat 8-5 is fitted onto the transmission nut 8-4 and connected to it as a whole by bolts. The nut seat 8-5 is connected to one end of the cross beam 3 through the connector 2.

[0045] like Figure 6 As shown. The garbage bag conveying assembly 10 consists of a motor 10-1, a pulley 10-2, a synchronous belt 10-3, a drive shaft 10-4, a driven shaft 10-5, a conveyor belt 10-6, a bushing 10-7, and a motor bracket 10-8. The motor bracket 10-8 is fixed to the frame 1 with bolts. The motor 10-1 is mounted on the motor bracket 10-8. The pulley 10-2 is mounted on the shaft of the motor 10-1. The synchronous belt 10-3 is fitted onto the pulley 10-2 and the front end of the drive shaft 10-4. The bushing 10-7 is fitted onto the tail end of the drive shaft 10-4 and both ends of the driven shaft 10-5. The bushing 10-7 is fixed to the frame 1 with bolts. The conveyor belt 10-6 is fitted onto the drive shaft 10-4 and the driven shaft 10-5.

[0046] like Figure 7 , Figure 4 As shown. The horizontal lead screw assembly 14 consists of a lead screw motor 14-1, a transmission lead screw 14-2, a transmission nut 14-3, a nut seat 14-4, a motor bracket 14-5, and a bearing seat 14-6. The lead screw motor 14-1 is directly connected to the transmission lead screw 14-2 and is fixedly mounted on the frame 1 via the motor bracket 14-5. The nut seat 14-4 is fitted onto the transmission nut 14-3 and is bolted to the transmission nut 14-3 as a whole. Figure 4 The transmission nut 14-3 is fitted onto the transmission lead screw 14-2. The nut seat 14-4 is bolted to the fixing seat 8-2 of the vertical lead screw assembly 8 (which has a protrusion and is located next to the lead screw motor 8-1). The horizontal optical rod follower assembly 15 consists of a bearing seat 15-1, an optical rod 15-2, and a square sleeve 15-3. There are two bearing seats 15-1, which are connected to both ends of the optical rod 15-2 and fixed to the frame 1 with bolts. The square sleeve 15-3 is bolted to the vertical optical rod follower assembly 16. In specific implementation, the anti-rotation structure of the nut seat 14-4 can also be implemented using a conventional design. In specific implementation, the anti-rotation of the nut seat 14-4 can be implemented using a conventional design, with the nut seat 14-4 having a guide block. A matching guide groove is designed in the frame 1. The guide block moves along the guide groove, thereby preventing the nut seat 14-4 from rotating synchronously with the nut 14-3.

[0047] Combination Figure 7 ,like Figure 8 As shown. The vertical optical bar follower assembly 16 includes: a left half bearing seat 16-1, a right half bearing seat 16-2, a bearing seat connecting screw 16-3, a vertical optical bar 16-4, a square sleeve 16-5, and a support seat 16-6. Figure 5 The left half bearing housing 16-1 and the right half bearing housing 16-2 are connected into one unit by bearing housing connecting screws 16-3. The horizontal light bar follower assembly 15 is connected to the connection part of the left half bearing housing 16-1. The square sleeve 16-5 is connected to the other end of the cross beam 3 by means of connector 2.

[0048] like Figure 5 As shown. A gravity sensor 5 is installed at the lower ends of the front and rear ends of the cross beam 3. The lower ends of the sensors 5 are respectively connected to the two ends of the straight beam 4. A pair of robotic arms 6 are installed upside down at the lower end of the straight beam 4 through the robotic arm connector 17.

[0049] The working process of this invention is as follows:

[0050] Bagged household waste falls onto the base plate 7-1-1 through the disposal port. After the system detects the waste, the horizontal lead screw assembly 14 and the horizontal guide bar follower assembly 15 activate. The lead screw motor 14-1 drives the transmission lead screw 14-2 to rotate. The rotation of the transmission lead screw 14-2 causes the transmission nut 14-3 and nut seat 14-4 to move horizontally. The nut seat 14-4 drives the vertical lead screw mechanism 8 connected to it to move horizontally. The square sleeve 15-3 drives the vertical guide bar follower assembly 16 connected to it to move horizontally. At the same time, the lead screw motor 8-1 of the vertical lead screw mechanism drives the transmission nut 8-4 and nut seat 8-5 to move vertically, causing the cross beam 3 connected to the nut seat 8-5 of the vertical lead screw mechanism to move vertically, thereby controlling the robotic arm 6, which is installed upside down below the cross beam 5, to move to a suitable position to grab the bagged waste. In practical implementation, the limiting of the nut seat 8-5 between the two reinforcing rods 8-7 can be achieved through a clamp or axial groove, so that the nut seat 8-5 can only move linearly between the two reinforcing rods 8-7 and cannot rotate with the nut 8-4. In practical implementation, the anti-rotation technology of the nut seat can also be implemented using conventional design.

[0051] The servo motor inside the robotic arm 6 controls the gripper to rotate to a suitable gripping angle and grasp the bagged waste. Next, the screw motor 8-1 of the vertical screw assembly 8 controls the nut seat 8-5 to move upward, suspending the bagged waste in the air. The gravity sensor 5 weighs the bagged waste. Then, the screw motor 8-5 controls the nut seat 8-5 to move downward again, pressing the bagged waste against the serrated bag-breaking blade 7-3. There is a pair of serrated bag-breaking blades 7-3, which restrict the longitudinal swing of the bagged waste by the gap between them.

[0052] The motor 7-1-3 of the bag-breaking assembly drives the base plate 7-1-1 to flip upwards. The serrated bag-breaking blade 7-3 mounted on it cuts the garbage bag, causing the garbage to fall out. There is a pair of base plates 7-1-1, whose seam is at a 90° angle to the robotic arm 6. During operation, the robotic arm 6 fixes both ends of the garbage bag, and the base plate 7-1-1 flips upwards. When it contacts the garbage bag, the horizontal component of the force on the garbage bag is aligned with the direction of the robotic arm 6. At this point, the robotic arm 6 acts as a limiter, restricting the swaying of the garbage bag, thus effectively achieving the bag-breaking effect.

[0053] The lead screw motors 8-1 and 14-1 control the movement of the nut seats 8-5 and 14-4 on the transmission lead screw, which drives the robotic arm 6 holding the garbage bag under the crossbeam to move above the garbage bag guide plate 13. Then, the servo motor inside the robotic arm 6 controls it to release the garbage bag, and the garbage bag falls into the conveyor belt 10-5 through the garbage bag guide plate 13.

[0054] Motor 10-1 drives synchronous belt 10-3, which in turn drives drive shaft 10-4 to rotate. Drive shaft 10-4 drives driven shaft 10-5 and conveyor belt 10-6 to operate, outputting garbage bags to a unified position, thus realizing the breaking of bagged household waste and the separate collection of garbage bags.

[0055] like Figure 9 As shown, this device replaces the smart sorting trash can's disposal section, with various trash recycling bins below it. In use, bagged trash is placed into the respective sorting trash cans. After the bag is broken, the trash falls into the recycling bin below. The robotic arm 6 then transports the broken, separated trash bag via the trash bag conveying assembly 10 to the trash bag recycling bin located on the far right of the smart sorting trash can for subsequent centralized processing.

[0056] Although embodiments of the present invention have been disclosed and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0057] The parts not covered in this invention are the same as or can be implemented using existing technologies.

Claims

1. A household waste bag-breaking device adapted to a community smart trash can, comprising a frame (1), a connector (2), a crossbeam (3), a straight beam (4), a gravity sensor (5), a robotic arm (6), a bag-breaking assembly (7), a vertical screw assembly (8), a baffle (9), a garbage bag conveying assembly (10), a conveying assembly protective cover (11), a partition (12), a garbage bag guide plate (13), a horizontal screw assembly (14), a horizontal optical bar follower assembly (15), a vertical optical bar follower assembly (16), a robotic arm connector (17), a housing (18), and a control unit; wherein, Two robotic arms (6) are arranged horizontally in parallel to achieve lateral restraint of bagged household waste. Two serrated bag-breaking blades (7-3) in the bag-breaking assembly (7) are arranged vertically in parallel to achieve longitudinal restraint of the bagged household waste. When the two robotic arms (6) laterally grasp the bagged household waste, and simultaneously, relying on the gap between the two serrated bag-breaking blades (7-3) in the vertically arranged bag-breaking assembly (7), the bagged household waste deforms due to its own weight, causing it to become stuck in the gap between the two serrated bag-breaking blades (7-3), thus achieving bag restraint. The garbage is fixed vertically, thus fixing the position of the bagged garbage in the bag-breaking device; moreover, when the two bag-breaking bottom plate components (7-1) equipped with serrated bag-breaking blades (7-3) flip upward, the garbage bag containing garbage is broken open at the same time, and the garbage falling channel is opened, so that the garbage separated from the garbage bag after breaking falls into the garbage recycling bin below. Then, the two robotic arms (6) holding the garbage bag move up and down and stop suddenly to shake off the remaining garbage in the garbage bag; then, the garbage bag that has been separated from the garbage is put into the garbage bag guide plate (13), and then falls onto the conveyor belt (10-6), and is transported by the garbage bag transmission component (10) to realize the independent collection of garbage bags; the baffle (9) is fixedly installed on the frame behind the bag-breaking component (7) by bolts, located in the middle between the bag-breaking component (7) and the garbage bag transmission component (10); the protective cover (11) of the transmission component is installed above the conveyor belt (10-6); the partition (12) is fixedly installed on the transmission component by bolts. On the frame in front of the protective cover (11), there is an opening on the partition (12) to guide the garbage bag into the conveyor belt by cooperating with the garbage bag guide plate (13); the garbage bag guide plate (13) is installed on the partition (12) by bolts and is located below the opening of the partition (12) to guide the garbage bag to be collected independently; the bottom of the outer shell (18) has an opening in the center as the garbage bag inlet, and the right side of the outer shell (18) is also open at the position of the garbage bag conveying assembly (10) for the output of garbage bags.

2. The household waste bag-breaking device according to claim 1, characterized in that: The robotic arm (6) contains a servo motor and can rotate 360 ​​degrees.

3. The household waste bag-breaking device according to claim 1, characterized in that: The bag-breaking assembly (7) consists of a bag-breaking bottom plate assembly (7-1), a pressure plate (7-2), a serrated bag-breaking blade (7-3), and two blade fixing bolts (7-4). The serrated bag-breaking blade (7-3) is fixed to the bag-breaking bottom plate assembly (7-1) by the pressure plate (7-2) and the two blade fixing bolts (7-4). The bag-breaking bottom plate assembly (7-1) consists of a bottom plate (7-1-1), a base (7-1-2), a motor (7-1-3), a motor bracket (7-1-4), and a coupling (7-1-5). One side of the bottom plate (7-1-1) is rotatable. On the other side of the shaft is a rectangular fan connected to the shaft. The length of the rectangular fan is shorter than the length of the shaft. One end of the base plate (7-1-1) is connected to the base (7-1-2). The base (7-1-2) is fixedly installed on the frame (1) by bolts. The other end of the base plate (7-1-1) is connected to the coupling (7-1-5). The other end of the coupling (7-1-5) is connected to the drive motor (7-1-3). The motor (7-1-3) is fixedly installed on the motor bracket (7-1-4). The motor bracket (7-1-4) is also fixed on the frame (1) by bolts.

4. The household waste bag-breaking device according to claim 1, characterized in that: The bag-breaking assembly (7) is a pair, arranged longitudinally in the bag-breaking device in a mirror manner, perpendicular to the arrangement direction of the two robotic arms (6) in space. The two shaft ends are fixed by two bases (7-1-2) and the two drive motors (7-1-3) are fixed by two motor brackets (7-1-4), thereby fixing the pair of bag-breaking assemblies (7) at the bottom of the frame (1).

5. The household waste bag-breaking device according to claim 1, characterized in that: The vertical lead screw assembly (8) consists of a lead screw motor (8-1), a fixed seat (8-2), a transmission lead screw (8-3), a transmission nut (8-4), a nut seat (8-5), a support seat (8-6), and two reinforcing rods (8-7). The vertical lead screw assembly (8) is connected to the horizontal lead screw assembly (14) through the connecting part on the fixed seat (8-2) and the nut seat (14-4) in the horizontal lead screw assembly (14). The nut seat (8-5) is connected to one end of the cross beam (3) through the connector (2).

6. The household waste bag-breaking device according to claim 1, characterized in that: The garbage bag conveying assembly (10) consists of a motor (10-1), a pulley (10-2), a synchronous belt (10-3), a drive shaft (10-4), a driven shaft (10-5), a conveyor belt (10-6), a bushing (10-7), and a motor bracket (10-8). The motor bracket (10-8) is fixed to the frame (1) by bolts. The motor (10-1) is mounted on the motor bracket (10-8). The pulley (10-2) is mounted on the shaft of the motor (10-1). The synchronous belt (10-3) is fitted onto the front end of the pulley (10-2) and the drive shaft (10-4). The bushing (10-7) is fitted onto the tail end of the drive shaft (10-4) and both ends of the driven shaft (10-5). The bushing (10-7) is fixed to the frame (1) by bolts. The conveyor belt (10-6) is fitted onto the two shafts.

7. The household waste bag-breaking device according to claim 1, characterized in that: The horizontal lead screw assembly (14) consists of a lead screw motor (14-1), a transmission lead screw (14-2), a transmission nut (14-3), a nut seat (14-4), a motor bracket (14-5), and a bearing seat (14-6). The lead screw motor (14-1) is directly connected to the transmission lead screw (14-2) and is fixedly installed on the frame (1) through the motor bracket (14-5). The nut seat (14-4) is fitted on the transmission nut (14-3), and the transmission nut (14-3) is fitted on the transmission lead screw (14-2). The nut seat (14-4) is connected to the fixing seat (8-2) of the vertical lead screw assembly (8) by bolts.

8. The household waste bag-breaking device according to claim 1, characterized in that: The horizontal light bar follower assembly (15) consists of a bearing seat (15-1), a light bar (15-2), and a square sleeve (15-3). There are two bearing seats (15-1), which are connected to the two ends of the light bar (15-2) respectively and fixed to the frame (1) by bolts. The square sleeve (15-3) is connected to the vertical light bar follower assembly (16) by bolts.

9. The household waste bag-breaking device according to claim 1, characterized in that: The vertical optical bar follower assembly (16) includes: a left half bearing seat (16-1), a right half bearing seat (16-2), a bearing seat connecting screw (16-3), a vertical optical bar (16-4), a square sleeve (16-5), and a support seat (16-6). The left half bearing seat (16-1) and the right half bearing seat (16-2) are connected as one unit by the bearing seat connecting screw (16-3). The horizontal optical bar follower assembly (15) is connected through the connection part of the left half bearing seat (16-1). The square sleeve (16-5) is connected to the other end of the cross beam (3) by means of the connector (2).

10. The household waste bag-breaking device according to claim 1, characterized in that: A gravity sensor (5) is installed at the bottom of each end of the cross beam (3). The bottom ends of the sensors (5) are connected to the two ends of the straight beam (4). A pair of robotic arms (6) are installed upside down below the straight beam (4) via a robotic arm connector (17).

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