Bag opening device

Abstract

The invention relates to the technical field of automatic equipment, and discloses a bag opening device which comprises a shell, a cutting assembly, a flapping assembly and a dust removal and back flushing assembly. The shell is provided with a containing cavity, the shell is provided with a feeding port and a discharging port, the feeding port and the discharging port are communicated with the containing cavity, the feeding port is suitable for small bags to be put in, and the discharging port is used for enabling powder materials in the small bags to flow out; the cutting assembly is arranged in the containing cavity so as to cut the small bags entering from the feeding port. The flapping assembly is arranged in the containing cavity, the flapping assembly is used for flapping the cut small bags to discharge residual powder materials in the small bags, and the dust removal and back blowing assembly is arranged on the shell and suitable for blowing air into the containing cavity to enable the powder materials to be discharged from the discharging opening. According to the bag opening device, material leakage is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automation equipment, and in particular to a bag opening device. BACKGROUND

[0002] In the new energy industry, at present, the opening of small-bag powder and the feeding of the powder generally adopt a fully enclosed glove box, a suction material room, and a semi-enclosed bag opening station. These devices all need human intervention, and have not realized full automation or have the problem of a small amount of dust leakage. The glove box needs to manually open and close the cabinet door, and after the material bag is enclosed, the cutting, disposal of waste bags and other operations are performed through the glove. Although it is dust-free, it limits the operational flexibility of the person and the additional working steps, resulting in a decrease in production efficiency. The glove is a consumable part that needs to be replaced regularly to prevent damage and leakage. The suction material room encloses the person and the material together in the suction material room, and then performs the operation of opening the bag. It relies on manual material handling, bag opening, cutting, suction, and disposal of waste bags. The bag opening station does not limit the operational flexibility of the person, but does not completely isolate the discharge space from the external environment. The material bag is opened in the state of the cabinet door being opened, and there is a possibility of a small amount of material leakage.

[0003] Therefore, how to reduce the leakage of the material in the bag opening process is a technical problem that needs to be solved at present. SUMMARY

[0004] The present application provides a bag opening device, which reduces the leakage of the material according to the bag opening device of the present application.

[0005] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the present application includes:

[0006] In a first aspect, the present application provides a bag opening device, which includes a housing, a cutting assembly, a beating assembly, and a dust removal and back blowing assembly. The housing has a containing cavity. The housing is provided with a feeding port and a discharging port, and the feeding port and the discharging port are respectively communicated with the containing cavity. The feeding port is suitable for feeding a small bag, and the discharging port is used for discharging the powder material in the small bag. The cutting assembly is arranged in the containing cavity to cut the small bag entering from the feeding port. The beating assembly is arranged in the containing cavity, and is used for beating the cut small bag to discharge the residual powder material in the small bag. The dust removal and back blowing assembly is arranged in the housing, and is suitable for blowing air into the containing cavity to discharge the powder material from the discharging port.

[0007] The bag opening device provided by the embodiments of the present application not only avoids the problems of incomplete bag breaking or excessive tearing caused by cutting position deviation and uneven force in the traditional bag opening method, effectively reduces the material spatter and leakage in the cutting link, but also actively removes the residual powder attached to the inner wall of the small bag through the beating action, greatly reduces the material retention rate, significantly improves the material recovery rate and utilization rate, improves the automatic bag opening efficiency, and at the same time, the entire bag opening process is completed in the closed containing cavity in the shell, which can effectively isolate the contact between the dust and the external environment, reduce the probability of material spilling outside the equipment or drifting into the air, and at the same time, there is no need to worry about the powder scattering caused by the beating of the beating assembly, so as to ensure that all materials can be limited in the containing cavity and finally collected in order from the discharge port, greatly reducing the leakage probability of the materials and reducing the probability of impurities entering the materials.

[0008] Optionally, the dust removal backflushing assembly, the feeding port, the cutting assembly, the beating assembly and the discharge port are arranged in sequence along the direction from top to bottom.

[0009] In the above scheme, the small bag is transferred between different assemblies by gravity, and after being put into the feeding port, the small bag can naturally fall to the cutting assembly, and after being cut, the small bag falls to the beating assembly together with the material, and at the same time, the material is driven to automatically fall by the dust removal backflushing assembly, and the equipment does not need to additionally add conveying mechanisms such as conveying belts and pushing rods, which not only reduces the complexity and energy consumption of the equipment, but also shortens the circulation time, significantly improves the automatic bag opening efficiency, and on the other hand, the vertical arrangement makes the material always move in the fixed self-top-to-bottom channel, and the powder spatter during cutting and the dust scattering during beating are blown to the discharge port under the action of the dust removal backflushing assembly, avoiding unexpected diffusion during horizontal transfer, and at the same time, cooperating with the cavity sealing, further reducing the risk of material scattering.

[0010] Optionally, the bag opening device further comprises a recycling assembly, and the recycling assembly has a first position and a second position, when the recycling assembly is located at the first position, the recycling assembly is located in the containing cavity, and when the recycling assembly is located at the second position, the recycling assembly is located outside the shell and takes the small bag out of the containing cavity.

[0011] In the above scheme, when the recycling assembly is in the first position, the small bag is received by the beating mechanism and falls into the recycling assembly at the same time, which can avoid the waste bag from being randomly dropped in the cavity to block the cutting assembly, the beating assembly, or cover the discharge port to affect the material discharge, and at the same time prevent the residual powder attached to the surface of the waste bag from scattering in the cavity, thereby ensuring the purity of the material and the smoothness of the subsequent bag opening process; when the recycling assembly is switched to the second position (the small bag is taken out of the shell), the operator does not need to open the cover to reach into the cavity to take the bag, which not only avoids the opening of the cover to damage the sealing and cause dust dispersion, but also eliminates the safety hazard of manual contact with the cutting components in the cavity, and can directly connect to the external waste bag collection device to realize continuous transfer, thereby saving the step of manually picking up the waste bags one by one, greatly improving the waste bag processing efficiency, and at the same time keeping the production site clean, making the whole process of "bag opening-residual cleaning-material discharge-waste bag recycling" more efficient, clean and safe.

[0012] Optionally, the recycling assembly comprises a baffle, a connecting rod and a push plate, one end of the connecting rod is arranged on the baffle, and the other end of the connecting rod is connected with the push plate.

[0013] The shell is also provided with a recycling opening, and the recycling assembly selectively enters the containing cavity through the recycling opening. When the recycling assembly is in the first position, the baffle blocks the recycling opening.

[0014] In the above scheme, when the recycling assembly is in the first position, the baffle can directly and tightly fit the edge of the recycling opening of the shell to close the containing cavity, without the need for additional sealing elements, thereby completely blocking the communication path between the containing cavity and the outside world, reducing the probability of dust leakage from the recycling opening during cutting and beating, and ensuring that the whole bag opening process is always carried out in a sealed environment. When transporting the waste bag, the baffle only needs to be driven to move outward along the recycling opening, and the push plate can be synchronously driven by the connecting rod to take the waste bag out of the shell, without the need to open the main cavity of the device. This not only saves the cumbersome step of manually opening the cover to take the bag, but also avoids dust dispersion and external impurities due to the opening of the cover to damage the sealing of the cavity, thereby realizing a continuous and automated process from bag opening to waste bag recycling.

[0015] Optionally, the bag opening device further comprises a recycling bin, and when the recycling assembly is in the second position, the recycling assembly is located in the recycling bin.

[0016] The recycling assembly further comprises a rodless cylinder, and the rodless cylinder is arranged in the recycling bin. The moving end of the rodless cylinder is connected with the baffle.

[0017] In the above scheme, the recovery bin provides a closed storage space for the recovery assembly in the second position, which can concentrate and constrain the waste bag and possible residual dust, facilitating the subsequent processing of the waste bag. The rodless cylinder is adapted to the limited space of the recovery bin, and does not require an excessively long piston rod for compact installation. The moving end of the rodless cylinder is directly connected to the baffle, which can drive the recovery assembly to smoothly and accurately switch between the first position and the second position. This ensures reliable sealing of the recovery port by the baffle in the first position, and further reduces the risk of leakage by blocking the material from drifting to the outside during the transfer process. At the same time, the automatic reciprocating motion is achieved by the adjustable stroke and stable power, reducing manual intervention and improving automation efficiency.

[0018] Optionally, the cutting assembly includes a first cutting assembly and a second cutting assembly, and the first cutting assembly and the second cutting assembly are arranged in a spaced manner along a first direction, and the first direction intersects with the vertical direction.

[0019] In the above scheme, the spaced arrangement of the two cutting assemblies can form cross-cutting of the falling small bag from different angles. The first cutting assembly and the second cutting assembly can respectively open the small bag from both sides, avoiding problems such as cutting deviation, too small opening, and insufficient discharge that may occur during single-sided cutting. This ensures that the small bag can be fully discharged, reduces the probability of material retention due to incomplete cutting, facilitates improved discharge efficiency and reduces material residue. It also ensures the integrity of the waste bag, facilitating one-time push-out and preventing bag fragments from remaining in the bin.

[0020] Optionally, the first cutting assembly includes a first shaft and a first cutter, and the second cutting assembly includes a second shaft and a second cutter. The first shaft and the second shaft are parallel and rotatably arranged in the housing. The first cutter is arranged on the first shaft, and the second cutter is arranged on the second shaft.

[0021] In the above scheme, the parallel arrangement of the first shaft and the second shaft enables the first cutter and the second cutter to form precise opposite matching, such as shearing action when rotating in opposite directions, which can stably and completely cut the falling small bag, avoiding problems such as slipping, deviation, or incomplete cutting that may occur during single cutter cutting. This ensures that the small bag is fully opened and facilitates full discharge. The rotatable arrangement of the shaft can drive the cutter to cut the small bag through continuous rotation, which can more efficiently cut the opening when the small bag falls under the action of gravity. No additional positioning mechanism is required for continuous cutting, which greatly improves the efficiency of automated processing.

[0022] Optionally, the first cutter is a plurality of cutters, and the plurality of first cutters are arranged in a spaced manner along the axial direction of the first shaft. The second cutter is a plurality of cutters, and the plurality of second cutters are arranged in a spaced manner along the axial direction of the second shaft. The plurality of first cutters and the plurality of second cutters are staggered and spaced along the axial direction of the first shaft.

[0023] In the above scheme, multiple first and second cutters spaced apart along the axis of rotation can form a wider cutting coverage. No matter which axial position the bag is in during its fall, it can be accurately contacted by the cutters, avoiding the problem of missed cutting caused by bag deviation. At the same time, the staggered distribution of the first and second cutters can generate a stronger cutting force on the bag. The staggered arrangement of the first and second cutters can cut the bag from different positions, which not only enhances the shearing force, but also opens the bag into a larger opening, ensuring that the material inside the bag flows out smoothly and reducing the occurrence of material retention due to insufficient cutting.

[0024] Optionally, the tapping component includes a first tapping component and a second tapping component, which are spaced apart along a second direction, and the second direction intersects with the vertical direction.

[0025] In the above scheme, the first and second tapping components, which are spaced apart along a second direction intersecting the vertical direction, can tap different areas of the bag respectively, greatly reducing the tapping dead angles on the surface of the bag and ensuring that different positions such as the sides and inclined areas of the bag can be effectively tapped. On the other hand, the two components working together can form a multi-directional tapping impact force, avoiding the situation where the material accumulates locally in the bag due to tapping in a single direction and is difficult to discharge. Through coordinated impact, the material in different positions of the bag is pushed towards the discharge port, improving the discharge efficiency.

[0026] Optionally, the first tapping assembly includes a third rotating shaft and a first tapping plate. The third rotating shaft is rotatably disposed on the housing, and the first tapping plate is disposed on the outer peripheral surface of the third rotating shaft and extends radially along the third rotating shaft.

[0027] The second striking assembly includes a fourth rotating shaft and a second striking plate. The fourth rotating shaft is rotatably disposed on the housing, and the second striking plate is disposed on the outer peripheral surface of the fourth rotating shaft and extends radially along the fourth rotating shaft.

[0028] At least one of the first and second striking plates is provided with sieve holes.

[0029] In the above scheme, the rotatable shaft can drive the beater plate to rotate around the shaft, realizing continuous beating of the small bag, which can significantly improve the beating efficiency. At the same time, the circumferential trajectory generated by the rotation can cover a larger area of ​​the small bag, further reducing the beating dead angle. On the other hand, the design of the beater plate extending radially along the shaft can ensure that there is a sufficient radius of action and contact area during beating. This avoids the small bag from being damaged due to excessive local beating force, and can also promote the flow of materials through uniform force, which helps to improve the unloading efficiency. When the beater plate contacts the small bag and applies vibration beating force, the loose fine materials (such as powder and small particles) in the small bag can fall directly into the unloading direction through the screen holes, avoiding their accumulation on the surface of the beater plate and hindering subsequent beating actions. At the same time, if there are slightly clumps of material in the small bag, the screen holes can form a certain "grinding and dispersing" effect. The clumps can be broken into small particles by the edge of the screen holes under the beating and squeezing, reducing the problem of clumps clogging the unloading port or remaining in the small bag, and improving the uniformity and thoroughness of unloading. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the bag opening device in some embodiments of this application;

[0032] Figure 2 This is a top view of the bag-opening device in some embodiments of this application;

[0033] Figure 3 for Figure 2 A three-dimensional sectional view of the structure along the AA direction;

[0034] Figure 4 These are schematic diagrams of structures in other embodiments of this application;

[0035] Figure 5 This is a schematic diagram of the structure in some other embodiments of this application.

[0036] [Explanation of Labels in the Attached Image]

[0037] 100, Shell; 100a, Receiving cavity; 100b, Inlet; 100c, Outlet; 100d, Recycling port;

[0038] 200. Cutting components;

[0039] 210. First cutting assembly; 211. First rotating shaft; 212. First cutting tool;

[0040] 220. Second cutting assembly; 221. Second rotating shaft; 222. Second cutting tool;

[0041] 300, Beating assembly; 300a, Screen holes;

[0042] 310. First striking component; 311. Third rotating shaft; 312. First striking plate;

[0043] 320. Second striking component; 321. Fourth rotating shaft; 322. Second striking plate;

[0044] 400, Recycling component; 400a, First position; 400b, Second position;

[0045] 410. Baffle; 420. Connecting rod; 430. Push plate; 440. Rodless cylinder;

[0046] 500. Recycling bin;

[0047] 600. Dust removal backflushing assembly;

[0048] X, the first direction; Y, the second direction. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0051] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0054] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0055] In the new energy industry, the opening and feeding of small bagged powder materials is currently carried out using fully enclosed glove boxes, suction rooms, and semi-enclosed bag opening stations. These devices all require human intervention and are not fully automated, or there is a problem of small-scale dust leakage.

[0056] The glove box requires manual opening and closing of the cabinet door. After sealing the material bags, operations such as cutting and disposing of waste bags are performed while wearing gloves. Although dust-free, this limits the operator's flexibility and adds extra steps, leading to decreased production efficiency. Gloves are consumable parts and need to be replaced regularly to prevent damage and leakage.

[0057] The material suction room encloses both people and materials inside, where operations such as opening bags are performed. This relies on manual labor for tasks such as material handling, bag opening, cutting, material suction, and waste bag disposal.

[0058] Although the bag opening station does not restrict the operator's flexibility, it does not completely isolate the discharge space from the external environment. Opening the material bag with the cabinet door open may result in a small amount of material leakage.

[0059] Therefore, how to reduce material leakage during the bag opening process is a technical problem that urgently needs to be solved.

[0060] In view of this, in order to reduce material leakage, this application provides a bag opening device. The housing 100 has a receiving cavity 100a. A cutting component 200 is disposed in the receiving cavity 100a to cut the small bag entering from the feed port 100b. A tapping component 300 is disposed in the receiving cavity 100a and is used to tap the cut small bag to discharge the residual powder material inside the small bag. A dust removal back-blowing component 600 is disposed in the housing 100 and is adapted to blow air into the receiving cavity 100a so that the powder material flows out from the discharge port 100c. This configuration avoids the problems of incomplete bag breakage or excessive tearing caused by cutting position deviation and uneven force in traditional bag opening methods, and effectively reduces material leakage. The system effectively reduces material spillage and leakage during the cutting process. It also actively removes residual powder adhering to the inner wall of the small bags through a tapping action, significantly reducing material retention and improving material recovery and utilization rates. This enhances automated bag opening efficiency. Furthermore, the entire bag opening process is completed within the enclosed cavity 100a inside the housing 100, reducing the likelihood of material leakage when the door is opened. This effectively isolates dust from the external environment, reducing the chance of material spilling outside the equipment or drifting into the air. Simultaneously, there is no need to worry about powder scattering caused by the tapping component 300 tapping the small bags, ensuring that all material is confined within the cavity 100a and ultimately collected orderly from the discharge port 100c. This greatly reduces the chance of material leakage and minimizes the likelihood of impurities entering the material.

[0061] The bag-opening device proposed in this application is described below with reference to the accompanying drawings.

[0062] like Figures 1-3 As shown, the bag-opening device according to the first aspect of this application includes a housing 100, a cutting component 200, and a tapping component 300.

[0063] The housing 100 has a receiving cavity 100a, and the housing 100 has an inlet 100b and an outlet 100c. The inlet 100b and the outlet 100c are respectively connected to the receiving cavity 100a. The inlet 100b is suitable for feeding small bags, and the outlet 100c is used for the powder material in the small bags to flow out. It can be understood that the housing 100 defines the receiving cavity 100a. The housing 100 can isolate the cutting component 200 and the beating component 300 from the outside world, provide a closed operating space for opening the small bags, block the material scattering path, reduce the powder splash generated when the cutting component 200 cuts the small bags, and reduce the dust raised when the beating component 300 beats.

[0064] This design reduces the chance of material leakage to the outside world. At the same time, the sealed cavity can isolate external air impurities (such as dust and moisture) and prevent contamination of the powder material inside the bag.

[0065] As an example, the housing 100 is also provided with a rotatable feed baffle 410. The feed baffle 410 can selectively open or close the feed inlet 100b, so that the receiving cavity 100a can be selectively closed. Specifically, when a small bag is fed into the feed inlet 100b, the feed baffle 410 is rotated to move away from the feed inlet 100b. When the small bag is opened, the feed baffle 410 is rotated in the opposite direction to block the feed inlet 100b, thereby achieving the closure of the receiving cavity 100a and reducing the probability of material leakage. The feed baffle 410 can also be movably disposed on the housing 100, which is not limited in this application.

[0066] As an example, the bag opening device is also provided with a discharge hopper, which is located at the discharge port 100c to receive the material flowing out from the discharge port 100c. The discharge hopper has a discharge channel communicating with the receiving cavity 100a. A filter screen is provided in the discharge channel. The filter screen can filter the material and reduce the chance of cutting debris or even small bags falling into the material.

[0067] It is understood that the discharge hopper can also be part of the housing 100, with the discharge hopper integrally formed with the housing 100 and the discharge port 100c located in the discharge hopper. This application does not limit this.

[0068] In a specific embodiment, the feed inlet 100b serves as the sole entry point for the small bags and can be connected to an upstream automatic bag feeding device, such as a bag feeder or conveyor belt, which directly pushes the small bags into the feed inlet 100b. After entering, the small bags fall directly into the closed cavity, eliminating the need for manual hand-held feeding and avoiding material leakage caused by premature opening of the bag opening during manual feeding.

[0069] The discharge port 100c serves as the sole outlet for the material and can be connected to downstream closed receiving equipment, such as negative pressure pipelines or receiving hoppers. The powder flowing out after the small bags are tapped is directly recycled back to the pipeline or receiving hopper, further improving automation efficiency.

[0070] The cutting assembly 200 is disposed in the cavity 100a to cut the small bag entering from the feed inlet 100b; it is understood that the cutting assembly 200 cuts the small bag in the closed cavity, and the bag debris and powder splashes generated during the cutting are blocked by the housing 100 and will not spread to the outside of the housing 100.

[0071] After the small bag enters the cavity, the cutting component 200 can automatically start cutting, improving automation efficiency.

[0072] The tapping component 300 is disposed in the cavity 100a. The tapping component 300 is used to tap the cut bags to discharge the residual powder material inside the bags. It can be understood that by tapping the cut bags in the closed cavity, the tapping component 300 can shake off the residual powder adhering to the bag wall, which reduces the probability of material leakage and improves the material recovery rate.

[0073] With this configuration, the powder knocked off by the tapping component 300 can fall into the bottom of the cavity and flow out from the discharge port 100c. The whole process is completed in a closed environment, and the dust will not be scattered to the outside due to excessive tapping force.

[0074] In the above scheme, the beating component 300 is itself set in the receiving cavity 100a of the housing 100, and all its beating actions are completed in the closed space. When the beating component 300 applies beating force to the cut small bag, the powder remaining in the bag may be raised due to vibration or sprayed out from the bag opening. However, the four walls, top and bottom of the cavity will form a physical barrier to prevent these dusts from breaking through the cavity and spreading to the operating area, such as workshop air and equipment surface. At the same time, the discharge port 100c connected to the bottom of the cavity will guide the raised dust to fall back down and eventually be discharged from the discharge port 100c with the mainstream material, reducing material leakage and facilitating material collection.

[0075] In a specific embodiment, the housing 100 is also provided with an air curtain, which is located at the feed inlet 100b inside the cavity 100a to block dust generated when the material bag is cut and the hopper door is not completely closed, thus preventing dust from flying into the external space. In addition, the housing 100 is also provided with a main material hopper door, which is connected to the housing 100 via a linkage mechanism to selectively block the feed inlet 100b. At the same time, the main material hopper door, as a moving part, is equipped with a sealing gasket on its closing surface, and a sealing force is applied by the reverse action of a cylinder.

[0076] The dust removal back-blowing assembly 600 is disposed in the housing 100. The dust removal back-blowing assembly 600 is adapted to blow air into the receiving cavity 100a so that the powder material is discharged from the discharge port 100c.

[0077] Understandably, small dust particles with low density are subject to air viscosity resistance, resulting in a long falling time or even no falling at all. This poses a risk of dust leakage when opening and closing cabinet doors. The dust removal backflushing component installed at the top of this equipment can guide the dust to rise or fall, thereby further reducing the risk of material leakage.

[0078] In a specific embodiment, the dust removal backflushing assembly is connected to a negative pressure pipe, relying on negative pressure to draw up the airborne dust. After the waste bag is recovered, compressed air backflushes the dust adsorbed on the filter element downwards, causing it to fall to the discharge port. The dust removal assembly also adsorbs dust in the recovery bin, further suppressing dust drifting into the recovery bin during the opening and closing process of the recovery assembly, thus helping to reduce the probability of material leakage during the entire bag opening process.

[0079] In other embodiments, please refer to Figure 3 The dust removal back-blowing component 600, the feed inlet 100b, the cutting component 200, the tapping component 300, and the discharge outlet 100c are arranged in sequence from top to bottom.

[0080] In the above solution, gravity can be used to drive the small bags and materials to automatically complete the entire process flow. Gravity drives the small bags to transfer between different components, and gravity drives the materials to fall automatically. There is no need to add additional conveyor belts, push rods and other conveying mechanisms, which reduces equipment complexity and energy consumption, shortens the flow time, and significantly improves the efficiency of automated bag opening.

[0081] After the small bag is fed into the feed inlet 100b, it can fall naturally to the cutting component 200. After being cut, it falls with the material to the beating component 300. The powder material is directly collected at the bottom discharge port 100c, which greatly reduces the waiting time of the process.

[0082] On the other hand, the vertical arrangement ensures that the material always moves within a fixed top-to-bottom channel. Powder splashes during cutting and dust dispersion during patting will settle towards the discharge port 100c under the action of the dust removal back-blowing component 600, avoiding unexpected diffusion during lateral transfer. At the same time, the cavity sealing further reduces the risk of material scattering.

[0083] In addition, this layered layout allows the working areas of each component to be non-overlapping, eliminating the need for complex positioning and avoidance structures, reducing the probability of part wear and jamming, and allowing for layer-by-layer operation along the vertical direction during later maintenance, which greatly reduces maintenance costs and failure rates, and ensures a continuous and smooth bag opening process.

[0084] In other embodiments, please refer to Figure 3 and Figure 4 The bag opening device also includes a recycling component 400, which has a first position 400a and a second position 400b. When the recycling component 400 is in the first position 400a, it is located in the receiving cavity 100a. It can be understood that after the small bag enters the receiving cavity 100a from the feed port 100b, it falls to the tapping component 300 to wait for tapping and recycling.

[0085] This design ensures that the cut and tapped bags (i.e., the emptied waste bags) are discharged promptly, preventing them from drifting randomly within the cavity 100a. It reduces the likelihood of bags getting stuck in the gaps between the cutting assembly 200 and the tapping assembly 300, preventing bags from failing to fall properly, and minimizing the chance of bags covering the discharge port 100c and affecting powder material discharge. This also reduces the impact of waste bags on the subsequent bag-opening process.

[0086] When the recycling component 400 is in the second position 400b, it is located outside the housing 100 and carries the small bag out of the receiving cavity 100a. It is understood that the recycling component 400 enables the safe and convenient transfer of the small bag, facilitating the centralized processing of waste bags without requiring operators to open the housing 100 and reach into the receiving cavity 100a to collect the small bag.

[0087] In the traditional design of the non-recycling component 400, manual bag removal not only interrupts the automated process (requiring machine shutdown and opening of the cover), but also poses a safety risk due to the operator's contact with the cutting component 200 inside the cavity. Furthermore, the opening process will damage the sealing of the cavity, causing residual dust inside the cavity to spread.

[0088] With this configuration, the recycling component 400 can directly carry the waste bag out of the housing 100, which reduces the impact on the subsequent bag opening process in the cavity 100a and further improves automation efficiency.

[0089] As an example, the recycling component 400 can be directly connected to external waste bag collection devices, such as waste bins or conveyor belts, to achieve continuous transfer of waste bags. For example, the recycling component 400 can be designed as a drawer-type or flip-type structure. After switching to the second position 400b, the waste bags can be poured directly into the waste bin without the need for manual picking them up one by one, which greatly improves the efficiency of waste bag processing. At the same time, it avoids the accumulation of waste bags outside the shell 100, which occupies the operating space and ensures the cleanliness and orderliness of the production site.

[0090] In other embodiments, please refer to Figure 3 and Figure 4 The recycling component 400 includes a baffle 410, a connecting rod 420, and a push plate 430. One end of the connecting rod 420 is disposed on the baffle 410, and the other end of the connecting rod 420 is connected to the push plate 430. It can be understood that the push plate 430 can drive the small bag to move. During the process of the recycling component 400 moving from the first position 400a to the second position 400b, the push plate 430 can drive the small bag to move until the small bag is taken away from the receiving cavity 100a.

[0091] The housing 100 also has a recovery port 100d. The recovery component 400 selectively enters the receiving cavity 100a through the recovery port 100d. When the recovery component 400 is in the first position 400a, the baffle 410 blocks the recovery port 100d. It can be understood that when the recovery component 400 is in the first position 400a, the baffle 410 can directly and tightly fit with the edge of the recovery port 100d of the housing 100 to seal the receiving cavity 100a. Without the need for additional sealing components, the connection path between the receiving cavity 100a and the outside world can be completely blocked, reducing the probability of dust raised during cutting and beating leaking from the recovery port 100d.

[0092] This design ensures that the entire bag-opening process takes place in a sealed environment.

[0093] Meanwhile, the push plate 430 is rigidly connected to the baffle 410 through the connecting rod 420, so that the movement of the baffle 410 can synchronously drive the push plate 430 to move precisely, reducing the occurrence of situations where waste bags move randomly in the cavity, causing jamming of the cutting blade, slapping plate, or blockage of the discharge port 100c.

[0094] When transferring waste bags, simply drive the baffle 410 to move outward along the recycling port 100d, and the connecting rod 420 will simultaneously drive the push plate 430 to carry the waste bag out of the housing 100. There is no need to open the main cavity of the equipment, which saves the tedious steps of manually opening the cover and taking out the bag, and avoids dust diffusion and external impurities intrusion caused by opening the cover and damaging the airtightness of the cavity. It realizes a continuous automated process from opening the bag to recycling the waste bag.

[0095] In addition, this integrated structure has the advantage of high stability. The connecting rod 420 can ensure that the push plate 430 and the baffle 410 move in complete synchronization, avoiding problems such as misalignment and jamming of the push plate 430 in the cavity, reducing the probability of equipment failure, and simplifying the assembly of components and the subsequent maintenance process, making the waste bag recycling process easier to operate and more reliable.

[0096] In other embodiments, please refer to Figure 3 and Figure 4 The bag opening device also includes a recycling bin 500. When the recycling component 400 is in the second position 400b, the recycling component 400 is located inside the recycling bin 500. It can be understood that when the recycling component 400 is in the second position 400b, the entire recycling component 400 is completely placed inside the recycling bin 500, and the small bag is also moved into the recycling bin 500 at the same time, which facilitates the centralized processing of waste bags and helps to improve automation efficiency.

[0097] The recycling assembly 400 also includes a rodless cylinder 440, which is located in the recycling bin 500. The moving end of the rodless cylinder 440 is connected to the baffle 410. It is understood that the rodless cylinder 440 does not require an excessively long piston rod, saving axial space compared to traditional rod cylinders. This allows for flexible installation within the limited internal space of the recycling bin 500, avoiding the impact of an excessively large cylinder on the overall equipment layout.

[0098] The moving end of the rodless cylinder 440 is directly connected to the baffle 410, which can drive the baffle 410 to drive the push plate 430 to achieve smooth and precise linear movement. This ensures that the recycling component 400 can quickly switch between the first position 400a and the second position 400b. This not only enables the baffle 410 to reliably block the recycling port 100d, but also avoids problems such as tilting or falling of the push plate 430 when transferring waste bags, thus reducing the probability of material leakage.

[0099] This design effectively prevents materials from drifting into the external environment during the transfer of small bags, further reducing the risk of material leakage.

[0100] In addition, the rodless cylinder 440 has a controllable stroke and stable power, which enables the automated reciprocating motion of the recovery component 400, thus helping to improve automation efficiency.

[0101] In a specific embodiment, when the waste bag is discharged, the recycling bin 500 is relatively isolated from the receiving cavity 100a inside the housing 100, forming an independent waste bag receiving space. The top of the recycling bin 500 is equipped with an automatic shut-off valve (generally a pneumatic butterfly valve), which is connected to the dust removal assembly at the top of the housing 100 via a pipe. This valve independently controls the start and stop of the dust removal function. When the back-flushing component of the dust removal assembly is activated, the automatic shut-off valve should remain closed, allowing the powder to return to the receiving cavity 100a, rather than the recycling bin 500.

[0102] As an example, the rodless cylinder 440 can also be replaced by a slider and a slide rail, and this application does not limit this.

[0103] In other embodiments, please refer to Figure 3 and Figure 5 The cutting component 200 includes a first cutting component 210 and a second cutting component 220. The first cutting component 210 and the second cutting component 220 are arranged at intervals along a first direction X, and the first direction X intersects with the vertical direction.

[0104] Understandably, the spaced arrangement of the first cutting component 210 and the second cutting component 220 can cross-cut the falling bag from different angles, avoiding problems such as cutting offset and small opening that may occur with single component cutting, ensuring that the bag can be fully unloaded, and reducing the chance of material retention due to incomplete cutting.

[0105] In other words, the first cutting component 210 and the second cutting component 220 can open the small bag from both sides, which can improve the discharge efficiency, reduce the amount of material residue, and ensure the integrity of the waste bag, making it easy to push out at one time and preventing the bag fragments from remaining in the hopper.

[0106] On the other hand, since the first direction X intersects with the vertical direction, the small bag will naturally pass through the interval area between the first cutting component 210 and the second cutting component 220 during its fall. Cutting can be completed without the need for additional positioning or pushing mechanisms, which simplifies the equipment structure, reduces energy consumption, and enhances the stability of the cutting contact by utilizing the falling inertia, thus avoiding the small bag getting stuck or the cutting component 200 spinning idly.

[0107] Meanwhile, the interval setting can reduce the mutual interference between the first cutting component 210 and the second cutting component 220, allowing each to maintain a stable cutting rhythm and force, further improving cutting efficiency and reliability.

[0108] As an example, the distance between the first cutting component 210 and the second cutting component 220 along the first direction X is adjustable, thereby allowing for further control of the cut size and facilitating rapid material discharge.

[0109] In other embodiments, please refer to Figure 3 and Figure 5 The first cutting assembly 210 includes a first rotating shaft 211 and a first cutting tool 212, and the second cutting assembly 220 includes a second rotating shaft 221 and a second cutting tool 222. The first rotating shaft 211 and the second rotating shaft 221 are parallel and rotatably disposed on the housing 100. The first cutting tool 212 is disposed on the first rotating shaft 211, and the second cutting tool 222 is disposed on the second rotating shaft 221.

[0110] In the above scheme, the first rotating shaft 211 and the second rotating shaft 221 are arranged in parallel, so that the first cutter 212 and the second cutter 222 can form a precise opposing cooperation. When they rotate in opposite directions, they form a shearing action, which can achieve stable and thorough cutting of the falling small bag, avoiding the slippage, deviation or incomplete cutting problems that may occur when cutting with a single cutter, ensuring that the small bag opening is sufficient and facilitating full unloading.

[0111] The rotatable shaft allows the cutter to actively contact the small bag through continuous rotation. When the small bag falls under the influence of gravity, it can cut an opening more efficiently, achieving continuous cutting without the need for an additional positioning mechanism, thus greatly improving the efficiency of automated processing.

[0112] Meanwhile, the independent rotating shaft structure facilitates the adjustment of the rotation speed and spacing of the first cutter 212 and the second cutter 222 respectively, which can flexibly adapt to small bags of different thicknesses and materials, enhancing the versatility of the equipment. In addition, the design of the rotating shaft being stably installed in the housing 100 can reduce vibration and offset during cutting, reduce the risk of cutting deviation caused by structural shaking, further ensure the stability of the cutting process, and reduce the problems of material retention and leakage caused by insufficient cutting or too small cutting opening.

[0113] In other embodiments, please refer to Figure 3 and Figure 5 There are multiple first tools 212, which are spaced apart along the axial direction of the first rotating shaft 211. There are multiple second tools 222, which are spaced apart along the axial direction of the second rotating shaft 221. The multiple first tools 212 and the multiple second tools 222 are staggered and spaced apart along the axial direction of the first rotating shaft 211.

[0114] In the above scheme, the multiple first cutters 212 and second cutters 222 arranged at intervals along the axis of rotation can form a wider cutting coverage range. No matter what axial position the small bag is in during the fall, it can be accurately contacted by the cutters, avoiding the problem of missed cutting caused by the small bag's deviation.

[0115] The staggered distribution of the first cutter 212 and the second cutter 222 can generate a stronger cutting force on the small bag. When the shaft rotates, the staggered first cutter 212 and the second cutter 222 can cut the small bag from different positions, which not only enhances the shearing force, but also opens the small bag into a larger opening, ensuring that the material inside the bag flows out smoothly and reducing material retention caused by insufficient cutting.

[0116] Meanwhile, the spacing reduces friction and interference between the blades, lowers the risk of small bags getting tangled on the blades, and ensures a continuous and smooth cutting process. In addition, the multi-blade layout can flexibly adapt to small bags of different sizes and thicknesses, improving the equipment's versatility and further ensuring efficient material discharge from the cutting stage, reducing the risk of leakage.

[0117] In specific embodiments, the number of multiple first cutters 212 and the number of multiple second cutters 222 can be the same or different, and this application does not impose any restrictions on this. After cutting, multiple staggered cuts are formed on the upper and lower sides of the small bag. The first cutters 212 and the second cutters 222 can be rotating blades or other shapes of cutters, and this application does not impose any restrictions on this.

[0118] Meanwhile, the housing 100 is provided with a motor stand and two motors mounted on the motor stand. The two motors drive the corresponding first rotating shaft 211 and second rotating shaft 221 to rotate respectively. As such, the two motors can control the corresponding rotating shafts to rotate at different speeds as needed, thereby providing different cutting forces to different positions of the small bag. Furthermore, the distance between the first cutter 212 and the second cutter 222 is adjustable, thereby providing different cutting positions and cutting forces to small bags of different sizes.

[0119] In a specific embodiment, deep groove ball bearings are provided at both ends of the first rotating shaft 211 and both ends of the second rotating shaft 221, and the bearings are equipped with dust covers; in addition, skeleton oil seals and dust rings are provided in sequence to achieve triple dust protection measures, which protect the bearings and prevent dust from escaping.

[0120] In other embodiments, please refer to Figure 3 and Figure 5 The tapping component 300 includes a first tapping component 310 and a second tapping component 320, which are spaced apart along a second direction Y, intersecting the vertical direction. It can be understood that the first tapping component 310 and the second tapping component 320 can work together to tap the small bag.

[0121] In the above scheme, the first tapping component 310 and the second tapping component 320, which are arranged at intervals along the second direction Y intersecting the vertical direction, can tap different areas of the small bag respectively, greatly reducing the tapping dead angles on the surface of the small bag and ensuring that different positions such as the side and inclined areas of the small bag can be effectively tapped.

[0122] On the other hand, the combined effect of the two can generate multi-directional impact force, avoiding the situation where materials accumulate locally in the small bag due to unidirectional impact and are difficult to discharge. Through synergistic impact, the materials in different positions of the small bag are pushed towards the discharge port, improving discharge efficiency and reducing the chance of incomplete discharge.

[0123] Meanwhile, the spacing setting can also prevent the two components from interfering with each other or colliding during the beating process due to overlapping motion trajectories, ensuring the stability of each beating action and thus making the overall beating effect more uniform.

[0124] As an example, the first tapping component 310 and the second tapping component 320 can move synchronously, thereby tapping both sides of the small bag synchronously in the second direction Y, reducing the problem of material accumulating in a certain area and not being able to be tapped out of the small bag, so that material in multiple positions of the small bag can be tapped out of the small bag at the same time, which helps to improve unloading efficiency.

[0125] The first tapping component 310 and the second tapping component 320 can independently adjust the tapping frequency and intensity as needed. In other words, the first tapping component 310 and the second tapping component 320 can move asynchronously, allowing them to tap the material in different areas of the bag in a targeted manner. For example, when the material on one side of the bag is clumped together due to moisture or compression, resulting in greater discharge resistance, the tapping component 300 on the corresponding side can be adjusted to a higher frequency and greater intensity to break up the clumping through enhanced impact. When the material on the other side of the bag is loose and easy to discharge, the tapping intensity of the corresponding component can be reduced to avoid excessive tapping that could cause material splashing or damage to the bag.

[0126] Meanwhile, in response to situations such as bag shifting or thick local material accumulation during unloading, asynchronous movement can flexibly adjust the difference in the beating rhythm between the two components. For example, the component on the accumulation side can shorten the beating interval and increase the number of beatings, while the component on the other side maintains a normal rhythm, guiding the accumulated material to flow towards the unloading port and further reducing material residue.

[0127] Furthermore, when dealing with small bags of different specifications and material types, the independently adjustable asynchronous motion does not require changing the component structure. It can be adapted to various scenarios simply by adjusting the parameters, reducing equipment adaptation costs and making the unloading operation more flexible, thus reducing problems such as incomplete unloading or low efficiency.

[0128] In other embodiments, please refer to Figure 3 and Figure 5 The first tapping assembly 310 includes a third rotating shaft 311 and a first tapping plate 312. The third rotating shaft 311 is rotatably disposed on the housing 100, and the first tapping plate 312 is disposed on the outer peripheral surface of the third rotating shaft 311 and extends radially along the third rotating shaft 311.

[0129] The second tapping assembly 320 includes a fourth rotating shaft 321 and a second tapping plate 322. The fourth rotating shaft 321 is rotatably disposed on the housing 100, and the second tapping plate 322 is disposed on the outer peripheral surface of the fourth rotating shaft 321 and extends radially along the fourth rotating shaft 321.

[0130] In the above solution, the rotatable shaft can drive the beating plate to rotate around the shaft in a circular motion, realizing continuous beating of the small bag. Compared with the fixed beating structure, it can avoid the waiting time for reset after a single impact, greatly improving the beating efficiency. At the same time, the circumferential trajectory generated by the rotating beating can cover a larger area of ​​the small bag. Combined with the interval layout of the two components along the second direction Y, it further reduces the beating dead angle.

[0131] On the other hand, the design of the striking plate extending radially along the axis of rotation ensures that there is a sufficient radius of action and contact area when striking, which avoids damage to the small bags due to excessive local striking force, and promotes the flow of materials through uniform force.

[0132] In addition, the two sets of independent rotating shaft structures can adjust the rotation speed to control the tapping frequency and force, which can flexibly adapt to the material state in different areas of the small bag. For example, the clumping area requires high-frequency strong tapping, while the loose area requires low-frequency light tapping. Moreover, the rotation of the shaft is highly stable, reducing equipment failure and ensuring continuous and efficient tapping and unloading effect.

[0133] As an example, the axis of the third rotating shaft 311 is parallel to the axis of the fourth rotating shaft 321, and the axis of the third rotating shaft 311 is perpendicular to the axis of the first rotating shaft 211. This arrangement allows the direction of the bag opening to be perpendicular to the direction of the beating, and the beating direction does not directly point to the bag opening. This reduces the impact on material discharge during the beating process and effectively prevents the material (especially powder and fine granular materials) in the bag from being pushed back into the bag from the opening when the beating force is applied, while also reducing material splashing loss.

[0134] It can also prevent the edges of the bag opening from being deformed or damaged due to strong impact on the opening, thus extending the service life of the bag (if it needs to be reused) or the equipment inlet 100b.

[0135] On the other hand, the striking force perpendicular to the opening direction can act more efficiently on the material inside the bag. The lateral striking can cause the side wall of the bag to vibrate and squeeze, pushing the material to concentrate and converge along the opening direction. If the opening is downward, the material will flow downward through the opening due to the striking vibration, avoiding the material being pushed away from the unloading path because the striking direction is the same as the opening, and further reducing the material residue in the bag.

[0136] Furthermore, the rotating axes of the first tapping component 310 and the second tapping component 320 are parallel and perpendicular to the first rotating shaft 211, which also ensures that the tapping trajectories of the two components maintain a consistent lateral rhythm. This ensures that the force on both sides of the small bag is uniform, and avoids the small bag from shifting or tilting during the unloading process due to deviation in the tapping direction. This ensures the stability of the unloading process, adapts to the lateral tapping requirements of small bags of different sizes, and improves the adaptability of the equipment to diverse small bag unloading scenarios.

[0137] As an example, when there are multiple tapping components 300, the axes of the rotating shafts in the multiple tapping components 300 can intersect with the axis of the first rotating shaft 211 respectively, thereby further improving the tapping effect.

[0138] In a specific embodiment, both ends of the third rotating shaft 311 and both ends of the fourth rotating shaft 321 are equipped with deep groove ball bearings with built-in dust covers; at the same time, skeleton oil seals and dust rings are sequentially provided to form a triple dust protection measure, which protects the bearings and also prevents dust from escaping.

[0139] In other embodiments, please refer to Figure 3 and Figure 5At least one of the first tapping plate 312 and the second tapping plate 322 is provided with a sieve hole 300a. It is understood that when the tapping plate contacts the bag and applies a vibrating tapping force, the loose fine materials (such as powder and small particles) in the bag can fall directly into the discharge direction through the sieve hole 300a, avoiding their accumulation on the surface of the tapping plate and hindering subsequent tapping actions.

[0140] Meanwhile, if there are slightly lumpy materials in the small bag, the sieve aperture 300a can have a certain "grinding and dispersing" effect. The lumps can be broken into small particles by the edge of the sieve aperture 300a under the patting and squeezing, which reduces the problem of lumps clogging the discharge port or remaining in the small bag, and improves the uniformity and thoroughness of discharge.

[0141] On the other hand, the sieve aperture 300a can reduce the contact resistance between the beater plate and the air during the movement, reduce the strong airflow generated by the high-speed movement of the plate, and thus prevent the airflow from blowing the material on the surface of the small bag away and falling into the discharge port 100c without following the predetermined path, which helps to unload the material quickly.

[0142] When in use, the beating plate also functions as a screen. After the material bag is put in and cut, it stays on the beating plate as the first layer of protection to prevent the material bag from falling further. At the same time, the cylinder drives the two beating plates to strike the material bag synchronously and quickly, generating a squeezing impact force, causing the powder to gush out from multiple cuts. After repeated cycles, the powder is gradually discharged from the material bag.

[0143] In a specific embodiment, the housing 100 is also provided with a viewing window, which is horizontally flush with the beater plate, to facilitate observation of whether any waste bags or waste bag fragments have fallen onto the beater plate. If necessary, the viewing window can be opened to manually remove the waste bags or waste bag fragments. In addition, personnel can be scheduled to periodically remove, replace, or clean the beater plate.

[0144] In a specific embodiment, a material level switch is installed on the side of the hopper to limit the amount of material fed in. When the material reaches the upper limit position, the device will limit the feeding of new material bags. A vibration device is also generally installed on the side of the hopper to shake off the powder adhering to the inner wall. A screw feeding device is also installed at the bottom outlet 100c to push the powder to flow in the pipeline.

[0145] In a specific embodiment, the housing 100 also has a dust removal port, and a dust removal backflushing assembly 600 is installed at the dust removal port. The dust removal backflushing assembly includes multiple filter elements. The surface area, number, and other parameters of the filter elements are designed to ensure sufficient filtration area, so that the suction pressure and suction volume are sufficient to meet the dust removal requirements. The multiple filter elements are connected to a negative pressure pipeline through an automatic shut-off valve (generally a pneumatic butterfly valve). The start and stop of the dust removal function are controlled by opening and closing the valve.

[0146] The dust collector backflushing assembly 600 can also be used to blow away powder adhering to the dust collector filter element, causing it to fall back into the main silo. Compressed air of a specific pressure and volume is pre-stored in an air tank. A pulse valve controls the airflow to generate high-pressure gas pulses at a specific frequency. These pulses are delivered to each filter element via multiple branch pipes on the pulse tube. Each branch pipe can directly spray the filter element, and the reverse high-pressure airflow blows off the powder adhering to the filter element, causing it to fall back into the main silo, thus improving material utilization.

[0147] This configuration allows the dust backflushing assembly to provide power for the recovery of materials while reducing the likelihood of material leakage.

[0148] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0149] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0150] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0151] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A bag-opening device, characterized in that, include: The shell has a receiving cavity, and the shell has an inlet and an outlet. The inlet and the outlet are respectively connected to the receiving cavity. The inlet is suitable for feeding small bags, and the outlet is used for discharging powdered material from the small bags. A cutting assembly is disposed in the receiving cavity to cut the small bag entering from the feed inlet; A tapping component is disposed in the receiving cavity, and the tapping component is used to tap the cut bag to discharge the residual powder material inside the bag; A dust removal back-blowing assembly is disposed in the housing, and the dust removal back-blowing assembly is adapted to blow air into the receiving cavity to discharge the powder material from the discharge port.

2. The bag-opening device according to claim 1, characterized in that, The dust removal back-blowing component, the feed inlet, the cutting component, the tapping component, and the discharge outlet are arranged sequentially from top to bottom.

3. The bag-opening device according to claim 1, characterized in that, The bag opening device further includes a recycling component, which has a first position and a second position. When the recycling component is in the first position, it is located in the receiving cavity. When the recycling component is in the second position, it is located outside the housing and carries the small bag out of the receiving cavity.

4. The bag-opening device according to claim 3, characterized in that, The recycling assembly includes a baffle, a connecting rod, and a push plate. One end of the connecting rod is disposed on the baffle, and the other end of the connecting rod is connected to the push plate. The housing is also provided with a recycling port, through which the recycling component selectively enters the receiving cavity. When the recycling component is in the first position, the baffle blocks the recycling port.

5. The bag-opening device according to claim 4, characterized in that, The bag opening device further includes a recycling bin, wherein when the recycling component is in the second position, the recycling component is located inside the recycling bin; The recycling assembly also includes a rodless cylinder, which is disposed in the recycling bin, and the moving end of the rodless cylinder is connected to the baffle.

6. The bag-opening device according to claim 1, characterized in that, The cutting assembly includes a first cutting assembly and a second cutting assembly, which are spaced apart along a first direction, and the first direction intersects with the vertical direction.

7. The bag-opening device according to claim 6, characterized in that, The first cutting assembly includes a first rotating shaft and a first cutting tool, and the second cutting assembly includes a second rotating shaft and a second cutting tool. The first rotating shaft and the second rotating shaft are parallel and rotatably disposed on the housing. The first cutting tool is disposed on the first rotating shaft, and the second cutting tool is disposed on the second rotating shaft.

8. The bag-opening device according to claim 7, characterized in that, There are multiple first tools, which are spaced apart along the axial direction of the first rotating shaft. There are also multiple second tools, which are spaced apart along the axial direction of the second rotating shaft. The multiple first tools and the multiple second tools are staggered and spaced apart along the axial direction of the first rotating shaft.

9. The bag-opening device according to claim 7, characterized in that, The slapping assembly includes a first slapping assembly and a second slapping assembly, which are spaced apart along a second direction, and the second direction intersects the vertical direction.

10. The bag-opening device according to claim 9, characterized in that, The first tapping assembly includes a third rotating shaft and a first tapping plate. The third rotating shaft is rotatably disposed on the housing, and the first tapping plate is disposed on the outer peripheral surface of the third rotating shaft and extends radially along the third rotating shaft. The second tapping assembly includes a fourth rotating shaft and a second tapping plate. The fourth rotating shaft is rotatably disposed on the housing, and the second tapping plate is disposed on the outer peripheral surface of the fourth rotating shaft and extends radially along the fourth rotating shaft. At least one of the first tapping plate and the second tapping plate is provided with sieve holes.

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