Bag breaking machine and maintenance method thereof

Abstract

The invention belongs to the technical field of household garbage treatment equipment, and discloses a bag breaking machine and a maintenance method thereof. The bag breaking machine comprises a roller assembly, a swing cutter assembly and a driving assembly, the roller assembly comprises a roller, a first cutter body is installed on the roller, the swing cutter assembly comprises a second cutter body, the second cutter body and the roller are arranged in a spaced mode, and the driving assembly is used for driving the roller to rotate so that the edge of the first cutter body can be matched with the second cutter body to achieve the bag breaking action. The first cutter body is a cuboid, a welding face can be formed after the edges of the first cutter body are abraded, and the welding face is used for welding and connecting repairing materials to reform the edges. By means of the bag breaking machine, bag breaking operation on bag type garbage can be stably, reliably and efficiently achieved, and when the movable cutter is abraded, surfacing welding can be conducted on the first cutter body, so that the edge of the first cutter body is conveniently and rapidly repaired, and the excellent bag breaking performance of the bag breaking machine is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of domestic waste treatment equipment, and in particular to a bag breaking machine and a maintenance method thereof. Background Art

[0002] Most of the domestic waste generated by residents is first put into garbage bags and then sent to designated garbage collection points. This practice is of great significance for improving the efficiency of garbage disposal and promoting resource recycling. However, in the garbage disposal process, the bagged domestic waste must first be torn and removed from the bag before further comprehensive sorting. This step is crucial for subsequent garbage disposal. Therefore, as a key equipment for the preliminary treatment of bagged garbage, the performance and efficiency of the bag breaker directly affect the smoothness of the entire garbage disposal process.

[0003] In the prior art, there are many types of bag breaking machines to meet this demand. For example, the Chinese patent with publication number CN113320785A discloses a non-entanglement heavy-duty bag breaking machine. Its working principle is that the two sides of the crushing drum adopt a cam plate design, and the blade teeth in the telescopic bag breaking tooth assembly are telescopic in the moving guide groove and cooperate with the bag breaking tool to break the bag. It has the defect of inconvenient replacement and maintenance of the blade teeth. A lot of disassembly is required during maintenance, which is time-consuming and labor-intensive, and also increases the maintenance cost of the blade teeth.

[0004] Therefore, it is urgent to develop a bag breaking machine and a maintenance method thereof to solve the problems existing in the prior art. Summary of the invention

[0005] An object of the present invention is to provide a bag breaking machine that can continuously and efficiently break bags, is not prone to jamming, and is easy to maintain.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Bag breaking machine, including:

[0008] A roller assembly, the roller assembly comprising a roller, a movable cutter being mounted on the roller, and the movable cutter comprising a first cutter body;

[0009] An oscillating knife assembly, the oscillating knife assembly comprising a second knife body, the second knife body being spaced apart from the roller;

[0010] A driving assembly is used to drive the roller to rotate so that the edge of the first blade body and the second blade body cooperate to achieve a bag breaking action. The first blade body is a rectangular parallelepiped. The first blade body is configured to form a welding surface after the edge is worn. The welding surface is used to weld and connect repair materials to re-form the edge.

[0011] Preferably, the movable knife tool further comprises a movable knife seat, the movable knife seat is detachably mounted on the outer peripheral surface of the roller, and the first knife body is welded and mounted on the movable knife seat.

[0012] Preferably, the bag breaking machine also includes a roller chain coupling, the drive assembly is transmission-connected to the roller chain coupling, the roller chain coupling is transmission-connected to the roller assembly, and the drive assembly and the roller chain coupling are used to provide power for the rotation of the roller.

[0013] Preferably, the drive assembly includes a variable frequency motor and a reducer, the variable frequency motor is transmission-connected to the reducer, the reducer is transmission-connected to the roller chain coupling, the variable frequency motor can rotate in a first direction and in a second direction, and the first direction and the second direction are mutually opposite.

[0014] Preferably, the bag breaking machine also includes a first fixed beam and a second fixed beam which are arranged in parallel and at intervals, the first fixed beam and the second fixed beam being arranged at intervals from the roller, the swinging knife assembly also includes a swinging knife holder and a first driving member, one end of the swinging knife holder is rotatably connected to the first fixed beam, the other end of the swinging knife holder is provided with the second knife body, the first driving member is connected to the second fixed beam and is transmission-connected to the swinging knife holder, the first driving member is used to drive the swinging knife holder to swing around one end connected to the first fixed beam.

[0015] Preferably, the swing knife assembly also includes a second driving member and a swing knife bracket, the swing knife bracket is movably connected to the second fixed beam, the first driving member is connected to the swing knife bracket, and the second driving member is used to drive the swing knife bracket to move in a direction away from and close to the roller to change the swing range of the second knife body.

[0016] Preferably, the bag breaking machine also includes a first sensor, which is used to detect the load of the driving component, and when the first sensor detects that the load of the driving component is greater than a preset value, the second driving member can drive the swinging knife bracket to move in a direction away from the roller.

[0017] Preferably, at least two movable cutters are connected to the outer circumferential surface of the roller, and at least two movable cutters are arranged along the axial direction of the roller.

[0018] The bag breaking machine also includes a scraper assembly, which includes a scraper tool and a third driving member. The third driving member can drive the scraper tool to move through between two adjacent movable tool cutters.

[0019] Preferably, the roller assembly also includes a main shaft, which is passed through the roller and is in transmission connection with the driving assembly, and the driving assembly can drive the roller to rotate through the main shaft. The bag breaking machine also includes a supporting frame, a sealing plate and a sealing arc plate. The supporting frame is equipped with a spherical roller bearing, the main shaft is passed through the spherical roller bearing, and the spherical roller bearing is installed on one side of the sealing plate and the sealing arc plate. The roller is located on the other side of the sealing plate and the sealing arc plate, and the sealing plate is configured as the end face of the roller. The sealing arc plate is vertically covered above the sealing plate and cooperates with the sealing plate gap, and the sealing plate and the sealing arc plate are used to cover and protect the spherical roller bearing.

[0020] The beneficial effects of the bag breaking machine provided by the present invention are as follows: through the above-mentioned bag breaking machine, the bag breaking operation of bagged garbage can be realized stably, reliably and efficiently, and when the movable knife tool is worn, it can also be repaired conveniently and quickly by surfacing welding on the first knife body, thereby maintaining its excellent bag breaking performance.

[0021] Another object of the present invention is to provide a bag breaking machine maintenance method, which can conveniently maintain the cutter teeth.

[0022] To achieve this object, the present invention adopts the following technical solutions:

[0023] The bag breaking machine maintenance method is used to repair the above-mentioned bag breaking machine, including:

[0024] A repairing material is welded and connected to the welding surface formed by the wear of the first blade body to re-form the edge of the first blade body.

[0025] The bag breaking machine maintenance method provided by the present invention has the beneficial effect that, by adopting the maintenance method, when the movable knife tool is worn, the edge of the first knife body can be repaired conveniently and quickly by surfacing welding on the first knife body, thereby maintaining its excellent bag breaking performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric diagram of the bag breaking machine provided by the present invention;

[0027] Figure 2 It is a three-dimensional diagram of the movable cutter of the present invention;

[0028] Figure 3 It is a top view of the bag breaking machine provided by the present invention;

[0029] Figure 4 is along Figure 3 Cross-section view in the AA direction;

[0030] Figure 5 is along Figure 4 Cross-section along the middle BB direction;

[0031] Figure 6 It is a partial structural diagram of the swing knife assembly in the present invention;

[0032] Figure 7 It is a side view of the bag breaking machine provided by the present invention;

[0033] Figure 8 It is a three-dimensional diagram of a scraper tool in the present invention.

[0034] In the figure:

[0035] 100. Driving assembly;

[0036] 200, roller assembly; 201, roller; 202, moving knife tool; 2021, first knife body; 2022, moving knife seat; 20221, first plate; 20222, second plate; 203, main shaft; 204, inner cylinder; 205, expansion sleeve; 206, sealing plate; 207, reinforcement plate; 208, positioning strip; 209, spherical roller bearing; 210, bearing seat; 211, bearing cover; 212, shaft sleeve; 213, skeleton oil seal;

[0037] 300, swing knife assembly; 301, swing knife holder; 302, first drive member; 303, second knife body; 304, earring; 305, second drive member; 306, swing knife holder; 307, first gear rack mechanism; 308, radial composite roller bearing; 309, swing shaft; 310, mounting plate; 311, oil-free sliding bearing;

[0038] 400, scraper assembly; 401, scraper tool; 4011, third tool body; 4012, scraper holder; 4013, scraper plate; 402, third driving member; 403, second gear rack mechanism; 404, scraper holder; 405, protective cover;

[0039] 501, support frame; 502, frame; 503, first fixed beam; 504, second fixed beam; 505, top beam; 506, front mounting plate; 507, sealing arc plate;

[0040] 601. Roller chain coupling. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] The following is based on the attached Figure 1 To Attachment Figure 8 The invention discloses a bag breaking machine and a maintenance method thereof.

[0046] like Figure 1 As shown, in this embodiment, the bag breaking machine includes a roller assembly 200, an oscillating knife assembly 300 and a driving assembly 100. The roller assembly 200 and the oscillating knife assembly 300 can cooperate to tear the garbage bag and realize the bag breaking operation, and the driving assembly 100 can provide power for realizing the bag breaking operation.

[0047] Specifically, Figure 1As shown, the bag breaking machine includes a support frame 501, and the support frame 501 is used to support and install the roller assembly 200, the swinging knife assembly 300 and the driving assembly 100. The roller assembly 200 includes a roller 201, and the roller 201 is rotatably mounted on the support frame 501, and a movable knife 202 is arranged on the outer peripheral surface of the roller 201. The swinging knife assembly 300 includes a second knife body 303, and the second knife body 303 and the roller 201 are arranged at intervals. The driving assembly 100 is connected to the roller 201 by transmission and can drive the roller 201 to rotate. When the roller 201 rotates, it can drive the garbage bag and the like to pass between the second knife body 303 and the movable knife 202. One side of the garbage bag is subjected to the force of the movable knife 202, and the other side is subjected to the force of the second knife body 303, and the forces on both sides are inconsistent, which will cause the garbage bag to rupture, thereby realizing the bag breaking operation.

[0048] More specifically, if Figure 2 As shown, in this embodiment, the movable cutter 202 includes a first cutter body 2021, which is a rectangular parallelepiped. The edges of the rectangular parallelepiped can tear and cut the garbage bags well, and have good retention, which is conducive to improving the efficiency of bag breaking and reducing the frequency of failures such as material jamming. At the same time, after the edges are worn, a welding surface can be formed on the rectangular parallelepiped, and the welding surface can be used for welding and connecting repair materials, thereby re-forming the edges, and realizing convenient and fast tool maintenance.

[0049] Through the above-mentioned bag breaking machine, the bag breaking operation of bagged garbage can be realized stably, reliably and efficiently, and when the movable knife tool 202 is worn, the edge of the first knife body 2021 can be repaired conveniently and quickly by welding on the first knife body 2021, thereby maintaining its excellent bag breaking performance.

[0050] Continue to refer to Figure 2As shown, the movable knife tool 202 also includes a movable knife seat 2022, which is detachably mounted on the outer peripheral surface of the roller 201, and the first knife body 2021 is welded and mounted on the movable knife seat 2022. Exemplarily, in this embodiment, the movable knife seat 2022 includes a first plate 20221 and a second plate 20222 that are vertically connected, the first plate 20221 is used to fit the outer peripheral surface of the roller 201, and the second plate 20222 is used to install the first knife body 2021 at a preset angle. Among them, the first plate 20221 is provided with four through holes, and four bolts can pass through the four through holes and be threadedly connected to the roller 201, thereby ensuring the stability of the movable knife seat 2022 installed on the roller 201, and does not affect the overall disassembly of the movable knife seat 2022. The first blade body 2021 is welded to the second plate 20222, thereby ensuring the structural stability of the first blade body 2021 during installation and operation, and reducing the abnormal phenomenon of the first blade body 2021 being broken as a whole. In this way, when welding repair materials are needed, the corresponding movable blade holder 2022 can be separated from the roller 201, and then the first blade body 2021 can be welded and repaired, which greatly facilitates the welding operation.

[0051] More specifically, in this embodiment, if Figure 3 , Figure 4 As shown, at least two moving cutters 202 are connected to the outer circumference of the roller 201, and at least two moving cutters 202 are arranged along the axis direction of the roller 201, and at least two second cutter bodies 303 are also arranged along the axis direction of the roller 201, which can improve the efficiency of bag breaking. Preferably, the roller 201 adopts a polygonal structure (such as a regular octagon) formed by welding multiple plates, and its outer circumference is composed of multiple planes, and multiple moving cutters 202 are arranged equidistantly along the axis direction of the roller 201 on each plane. The moving cutters 202 on two adjacent planes differ by one and are arranged in a staggered manner, thereby improving the bag breaking effect and helping to reduce the phenomenon of material jamming.

[0052] Optionally, in this embodiment, the first blade body 2021 is made of high-hardness wear-resistant steel plate HARDOX450, which is both wear-resistant and easy to weld. The movable blade seat 2022 is made of low-alloy high-strength structural steel Q345B, which has excellent structural strength and can well support the first blade body 2021 to achieve bag breaking.

[0053] Of course, when the first blade 2021 is difficult to repair or the movable blade holder 2022 is structurally damaged, the movable blade holder 2022 can be directly separated and the movable blade 202 can be replaced as a whole, which is also within the scope of protection of the present invention.

[0054] like Figures 3 to 5As shown, in the present embodiment, the roller assembly 200 also includes a main shaft 203, which is inserted into the roller 201 and can drive the roller 201 to rotate. A roller chain coupling 601 is connected between the drive assembly 100 and the main shaft 203, so that the drive assembly 100 and the main shaft 203 can be coaxially connected, which has the advantages of simple structure and convenient disassembly, and is convenient for maintenance. At the same time, the roller chain coupling 601 can adapt to certain axial and angular deviations, which can further reduce the connection requirements between the drive assembly 100 and the main shaft 203, and facilitate installation and debugging. Optionally, the support frame 501 is also connected to a frame 502, which is arranged on the side of the support frame 501, fixed to the support frame 501 by bolts, and can be used to support and fix the drive assembly 100.

[0055] Preferably, in this embodiment, the drive assembly 100 includes a variable frequency motor and a reducer, the variable frequency motor is connected to the reducer, and the reducer is connected to the roller chain coupling 601. The variable frequency motor can rotate in a first direction and in a second direction, and the first direction and the second direction are mutually opposite. For example, when the bag breaking operation is performed normally, the variable frequency motor rotates in the first direction and drives the roller 201 to rotate in the first direction. Figure 4 When the material is stuck, the variable frequency motor rotates in the second direction and drives the roller 201 to rotate in the clockwise direction. Figure 4 The tool 200 is rotated counterclockwise in the middle, so that the garbage bag stuck between the movable cutter 202 and the second cutter body 303 is removed from between the movable cutter 202 and the second cutter body 303, which is convenient for troubleshooting or other maintenance work.

[0056] Optionally, the bag breaking machine further includes a first sensor, the first sensor is used to detect the load of the driving assembly 100, and when the first sensor detects that the load of the driving assembly 100 is greater than a preset value, the second driving member 305 can drive the swing knife bracket 306 to move in a direction away from the roller 201. Optionally, in this embodiment, the first sensor is a current sensor, which can detect the current size of the driving variable frequency motor, thereby realizing the load detection of the driving assembly 100.

[0057] like Figure 5As shown, in this embodiment, the roller assembly 200 also includes an inner cylinder 204, an expansion sleeve 205 and a sealing plate 206. The inner cylinder 204 is sleeved on the main shaft 203, and is fixedly connected to the main shaft 203 through a plurality of expansion sleeves 205 arranged at both ends of the inner cylinder 204, so that the inner cylinder 204 can rotate with the main shaft 203. The sealing plate 206 is arranged at the end of the inner cylinder 204, which can not only fix the inner cylinder 204 and the roller 201, but also seal the inner cylinder 204 and the roller 201, thereby preventing foreign matter such as garbage from entering. Preferably, a plurality of reinforcing plates 207 are arranged between the inner cylinder 204 and the roller 201 along the axial direction of the roller 201. The reinforcing plates 207 adopt a slot plug weld structure and are welded and connected between the outer surface of the inner cylinder 204 and the inner surface of the roller 201 at equal intervals, which can improve the structural strength of the entire roller assembly 200. Optionally, a positioning strip 208 is further provided on the outer surface of the roller 201 , and the positioning strip 208 is used to abut and position the movable cutter 202 along the longitudinal force direction of the movable cutter 202 , so as to accurately locate the installation position of the movable cutter 202 .

[0058] Furthermore, the drive assembly 100 is located on one side of the support frame 501, and the roller assembly 200 is located on the other side of the support frame 501, so that the drive assembly 100 and other structures are isolated from foreign objects such as garbage through the support frame 501 to avoid pollution and damage. Specifically, the support frame 501 is connected to two spherical roller bearings 209, and one end of the main shaft 203 is inserted through a spherical roller bearing 209 and then connected to the roller chain coupling 601, thereby realizing transmission connection with the drive assembly 100. The other end of the main shaft 203 is inserted through another spherical roller bearing 209, so that the main shaft 203 can be rotatably installed on the support frame 501, and then the roller assembly 200 can be rotatably installed on the support frame 501.

[0059] like Figure 5 As shown, the support frame 501 is also connected to a sealing arc plate 507. The outer ends of the sealing arc plate 507 and the sealing plate 206 have the same radius. The sealing arc plate 507 is vertically covered above the sealing plate 206 and is gap-matched with the sealing plate 206, so that the sealing plate 206 and the sealing arc plate 507 can cover and protect the spherical roller bearing 209, and the sealing arc plate 507 will not affect the normal rotation of the sealing plate 206.

[0060] Furthermore, in this embodiment, the support frame 501 is also connected with a bearing seat 210, a bearing cover 211, a sleeve 212 and a skeleton oil seal 213, so as to provide a sealing and protective effect on the spherical roller bearing 209. Exemplarily, a bearing seat 210 and a bearing cover 211 are installed on the side of the support frame 501 close to the drive assembly 100, and the main shaft 203 is arranged through the bearing cover 211 and the bearing seat 210. A receiving space is formed between the bearing seat 210 and the bearing cover 211, and the sleeve 212 and the spherical roller bearing 209 are protectively arranged in the receiving space, thereby further separating the spherical roller bearing 209 from foreign matter. A skeleton oil seal 213 is sealed between the bearing seat 210 and the bearing cover 211 and the main shaft 203, thereby further isolating moisture and the like from entering the receiving space, and providing a better protective effect on the spherical roller bearing 209. Of course, the side of the support frame 501 away from the drive assembly 100 is also installed with a spherical roller bearing 209, a bearing seat 210, a bearing cover 211, a sleeve 212 and a skeleton oil seal 213, and the main shaft 203 is also passed through the spherical roller bearing 209, which will not be elaborated in the present invention.

[0061] like Figures 4 to 6 As shown, in this embodiment, the bag breaking machine further includes a first fixed beam 503 and a second fixed beam 504 which are arranged in parallel and at intervals, the first fixed beam 503 and the second fixed beam 504 are installed on the support frame 501, and the first fixed beam 503 and the second fixed beam 504 are arranged at intervals from the roller 201. The swing knife assembly 300 further includes a swing knife holder 301 and a first driving member 302, one end of the swing knife holder 301 is rotatably connected to the first fixed beam 503, and the other end of the swing knife holder 301 is installed with a second knife body 303. The first driving member 302 is connected to the second fixed beam 504 and is transmission-connected to the swing knife holder 301, and the first driving member 302 is used to drive the swing knife holder 301 to swing around one end connected to the first fixed beam 503.

[0062] Specifically, in the present embodiment, the first driving member 302 is a cylinder, one end of which is connected to the first fixed beam 503. The swing knife assembly 300 also includes an earring 304, the other end of which is rotatably connected to the earring 304. When the cylinder performs telescopic movement, it can drive the swing knife holder 301 to swing around one end connected to the first fixed beam 503, thereby changing the distance between the second knife body 303 and the roller 201, so that the bag breaking machine can be suitable for garbage bags of different sizes. Preferably, each cylinder is provided with an accumulator and a hydraulic lock, which can absorb this part of the energy under the impact of the workload, effectively cope with external impacts, reduce vibration, and protect the structure.

[0063] During use, when encountering large or difficult-to-break materials during the bag breaking process, the current of the frequency conversion motor is too large, the cylinder retracts immediately, and the gap between the second knife body 303 and the roller 201 increases. After the large or difficult-to-break materials are cleared, the cylinder extends again, so that the gap between the second knife body 303 and the roller 201 returns to the initial set distance, and then continues to work.

[0064] Continue to refer to Figure 4 , Figure 5 As shown, in this embodiment, the support frame 501 is also connected to a second driving member 305 and a swinging knife bracket 306, the swinging knife bracket 306 is movably connected to the second fixed beam 504, the first driving member 302 is connected to the swinging knife bracket 306, and the second driving member 305 is used to drive the swinging knife bracket 306 to move in a direction away from and close to the roller 201 to change the swing range of the second knife body 303.

[0065] Specifically, the support frame 501 is also connected to a first gear rack mechanism 307 and a radial composite roller bearing 308. The rack in the first gear rack mechanism 307 is arranged in the vertical direction, and the gear is meshed and connected with the rack, and is rotatably connected with the swing knife support 306 through the radial composite roller bearing 308. The second fixed beam 504 is connected to a top beam 505, and a vertical channel is arranged in the top beam 505 in the vertical direction. The roller position is adjustable and arranged in the vertical channel and connected with the radial composite roller bearing 308, so as to guide and limit the swing knife support 301 to move in the vertical direction. The second driving member 305 also adopts an oil cylinder, one end of which is fixedly connected to the support frame 501, and the other end is connected to the swing knife support 306. When the oil cylinder is extended, the swing knife support 306 rises, and the gap between it and the roller 201 increases, so that the swing range of the second knife body 303 is away from the roller 201 as a whole. When the oil cylinder retracts, the swing knife support 306 descends, and the gap between the swing knife support 306 and the roller 201 decreases, so that the swing range of the second knife body 303 is close to the roller 201. Therefore, by adjusting the second driving member 305, the swing range of the second knife body 303 can be changed, so that the bag breaking machine can be further applied to the bag breaking operation of garbage bags of different sizes. Optionally, the support frame 501 is also connected to a second sensor, which is used to detect the vertical position of the swing knife support 306.

[0066] Preferably, a first gear rack mechanism 307 and a second driving member 305 are respectively provided at both ends of the swing knife support 306, so that the swing knife support 306 can maintain a horizontal posture when rising or falling, avoiding the phenomenon of skewing. Four radial composite roller bearings 308 and four rollers are respectively provided at each end of the swing knife support 306, and the second fixed beam 504 is connected to four top beams 505, and each top beam 505 has two rollers in its vertical channel, thereby further improving the stability when adjusting the swing range.

[0067] Alternatively, if Figure 6 As shown, in this embodiment, the swing knife assembly 300 also includes a swing shaft 309, a mounting plate 310 and an oil-free sliding bearing 311. Among them, the mounting plate 310 is fixedly connected to the first fixed beam 503, and the oil-free sliding bearing 311 is installed on the mounting plate 310. The swing shaft 309 is penetrated by the oil-free sliding bearing 311 and is rotatably connected to the mounting plate 310. One end of the swing knife holder 301 is fixedly connected to the swing shaft 309, the second knife body 303 is installed on the other end of the swing knife holder 301, and the earring 304 is installed on the side of the swing knife holder 301 facing the first driving member 302.

[0068] Preferably, three second knife bodies 303 are fixed to each swing knife holder 301 by bolts, so as to facilitate the replacement and maintenance of the second knife bodies 303. The second knife bodies 303 are designed to be sawtooth-shaped and have multiple knife tip points, so as to achieve a good bag breaking effect.

[0069] like Figure 1 , Figure 7 As shown, in this embodiment, the bag breaker also includes a scraper assembly 400, which includes a scraper tool 401 and a third driving member 402. The scraper assembly 400 is arranged in the direction of the bag breaker discharging, and the third driving member 402 can drive the scraper tool 401 to move through between two adjacent movable cutters 202, thereby cleaning the material remaining between the two movable cutters 202.

[0070] Specifically, the scraper assembly 400 also includes a front mounting plate 506, a second gear rack mechanism 403 and a scraper bracket 404. The front mounting plate 506 is installed in the discharging direction of the bag breaking machine and is fixedly connected to the support frame 501. The scraper bracket 404, the scraper tool 401, the third driving member 402 and the second gear rack mechanism 403 are all installed on the front mounting plate 506, wherein the third driving member 402 and the second gear rack mechanism 403 are used to drive the scraper bracket 404 and the scraper tool 401 to move in the vertical direction and pass between two adjacent moving tool cutters 202. Similar to the first gear rack mechanism 307, the rack of the second gear rack mechanism 403 is fixedly installed on the front mounting plate 506, and the gear is rotatably installed on the scraper bracket 404. At the same time, a vertical channel is also provided in the front mounting plate 506, so as to guide the vertical movement of the scraper bracket 404.

[0071] A plurality of scraper tools 401 are arranged on the scraper support 404 along the axis direction of the roller 201, and each scraper tool 401 includes a third tool body 4011, a scraper support 4012 and a scraper plate 4013. Four through holes are arranged at one end of the scraper support 4012, and bolts can pass through the through holes and detachably mount the scraper support 4012 on the scraper support 404. The third tool body 4011 is mounted on the other end of the scraper support 4012, and a scraper plate 4013 is mounted on the top of the scraper support 4012. When the scraper support 404 moves in the vertical direction, the third tool body 4011 can extend into between two adjacent movable tools 202, thereby scraping off the material. The scraper plate 4013 can improve the scraping effect and reduce the residue. When bagged garbage adheres to the roller 201, the bagged garbage on the roller 201 can be automatically cleaned by the third blade 4011 and the scraper plate 4013, thereby facilitating the maintenance of the bag breaking machine.

[0072] Optionally, the third blade body 4011 is designed to be a quadrilateral, the blade tip is hook-shaped, and is made of high-hardness wear-resistant steel plate with sufficient hardness and wear resistance.

[0073] Preferably, a third driving member 402 and a second gear rack mechanism 403 are respectively provided at both ends of the scraper bracket 404, so as to improve the stability of the scraper bracket 404 during the lifting movement. Optionally, the third driving member 402 is a cylinder, and a protective cover 405 is provided on the outer cover of the cylinder to prevent the cylinder from being contaminated or damaged by foreign objects such as garbage.

[0074] The present invention also provides a bag breaking machine maintenance method, which is used to repair the above-mentioned bag breaking machine. Specifically, the maintenance method comprises:

[0075] A repair material is welded to the welding surface formed by the wear of the first blade body 2021 to reform the edge of the first blade body 2021 .

[0076] It should be noted that the first blade body 2021 preferably uses a high-hardness wear-resistant steel plate HARDOX450, and the repair material also preferably uses a high-hardness wear-resistant steel plate HARDOX450 of a corresponding shape, so as to conveniently achieve welding connection. By adopting this repair method, when the movable cutter 202 is worn, the edge of the first blade body 2021 can be repaired conveniently and quickly by surfacing welding on the first blade body 2021, thereby maintaining its excellent bag breaking performance.

[0077] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Bag breaking machine, characterized in that, Included are: A roller assembly (200), the roller assembly (200) comprising a roller (201), a movable cutter (202) being mounted on the roller (201), the movable cutter (202) comprising a first cutter body (2021); An oscillating knife assembly (300), the oscillating knife assembly (300) comprising a second knife body (303), the second knife body (303) being spaced apart from the roller (201); A drive assembly (100) is used to drive the roller (201) to rotate so that the edge of the first blade (2021) and the second blade (303) cooperate to achieve a bag breaking action; the first blade (2021) is a rectangular parallelepiped, and the first blade (2021) is configured to form a welding surface after the edge is worn, and the welding surface is used to weld and connect repair materials to re-form the edge.

2. The bag breaking machine according to claim 1, characterized in that: The movable knife tool (202) further comprises a movable knife seat (2022), wherein the movable knife seat (2022) is detachably mounted on the outer peripheral surface of the roller (201), and the first knife body (2021) is welded and mounted on the movable knife seat (2022).

3. The bag breaking machine according to claim 1, characterized in that: The bag breaking machine further comprises a roller chain coupling (601), the driving assembly (100) is drivingly connected to the roller chain coupling (601), the roller chain coupling (601) is drivingly connected to the roller assembly (200), and the driving assembly (100) and the roller chain coupling (601) are used to provide power for the rotation of the roller (201).

4. The bag breaking machine according to claim 3, characterized in that: The drive assembly (100) comprises a variable frequency motor and a reducer, the variable frequency motor is transmission-connected to the reducer, the reducer is transmission-connected to the roller chain coupling (601), the variable frequency motor can rotate in a first direction and in a second direction, the first direction and the second direction being opposite to each other.

5. The bag breaking machine according to claim 1, characterized in that: The bag breaking machine further comprises a first fixed beam (503) and a second fixed beam (504) which are arranged in parallel and at intervals, wherein the first fixed beam (503) and the second fixed beam (504) are both arranged at intervals from the roller (201), and the swing knife assembly (300) further comprises a swing knife holder (301) and a first driving member (302), wherein one end of the swing knife holder (301) is rotatably connected to the first fixed beam (503), and the other end of the swing knife holder (301) is provided with the second knife body (303), the first driving member (302) is connected to the second fixed beam (504) and is transmission-connected to the swing knife holder (301), and the first driving member (302) is used for driving the swing knife holder (301) to swing around one end connected to the first fixed beam (503).

6. The bag breaking machine according to claim 5, characterized in that: The swing knife assembly (300) also includes a second driving member (305) and a swing knife bracket (306), wherein the swing knife bracket (306) is movably connected to the second fixed beam (504), the first driving member (302) is connected to the swing knife bracket (306), and the second driving member (305) is used to drive the swing knife bracket (306) to move in a direction away from and close to the roller (201) to change the swing range of the second knife body (303).

7. The bag breaking machine according to claim 6, characterized in that: The bag breaking machine also includes a first sensor, which is used to detect the load of the driving component (100), and when the first sensor detects that the load of the driving component (100) is greater than a preset value, the second driving member (305) can drive the swinging knife support (306) to move in a direction away from the roller (201).

8. The bag breaking machine according to claim 1, characterized in that: At least two movable cutters (202) are connected to the outer peripheral surface of the roller (201), and the at least two movable cutters (202) are arranged in an array along the axis direction of the roller (201). The bag breaking machine further comprises a scraper assembly (400), wherein the scraper assembly (400) comprises a scraper tool (401) and a third driving member (402), wherein the third driving member (402) is capable of driving the scraper tool (401) to move through between two adjacent movable tool (202).

9. The bag breaking machine according to claim 1, characterized in that: The roller assembly (200) further comprises a main shaft (203), wherein the main shaft (203) passes through the roller (201) and is drivingly connected to the driving assembly (100), and the driving assembly (100) can drive the roller (201) to rotate via the main shaft (203). The bag breaking machine also includes a supporting frame (501), a sealing plate (206) and a sealing arc plate (507); the supporting frame (501) is installed with a spherical roller bearing (209); the main shaft (203) is passed through the spherical roller bearing (209); the spherical roller bearing (209) is installed on one side of the sealing plate (206) and the sealing arc plate (507); the roller (201) is located on the other side of the sealing plate (206) and the sealing arc plate (507); the sealing plate (206) is configured as the end face of the roller (201); the sealing arc plate (507) is vertically covered above the sealing plate (206) and is gap-matched with the sealing plate (206); the sealing plate (206) and the sealing arc plate (507) are used to cover and protect the spherical roller bearing (209).

10. A bag breaking machine maintenance method, used for repairing the bag breaking machine according to any one of claims 1 to 9, characterized in that: include: A repair material is welded and connected to the welding surface formed by wear of the first blade body (2021) to re-form the edge of the first blade body (2021).

Images