CN219172899U

CN219172899U - Bag breaking knife set for solid garbage bag breaking machine

Info

Publication number: CN219172899U
Application number: CN202121223957.4U
Authority: CN
Inventors: 徐锡锋; 袁东山; 陈明
Original assignee: Jiangsu Keson Environment Technology Co ltd
Current assignee: Jiangsu Keson Environment Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2023-06-13
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a bag breaking knife set for a solid garbage bag breaking machine, which comprises an active bag breaking knife set and a swinging auxiliary bag breaking knife set matched with the active bag breaking knife set, wherein a bag breaking main knife and a bag breaking auxiliary knife are made of hard wear-resistant materials, and an electric heating unit is arranged in the middle of the bag breaking auxiliary knife; the active bag breaking knife set further comprises a first main shaft driven by the first driving device, and a plurality of bag breaking main knives distributed at equal intervals are sequentially sleeved on the first main shaft; the swing type auxiliary bag breaking knife set further comprises a first bracket, a second driving device for driving the first bracket to swing, and a first auxiliary shaft which is arranged on the first bracket and is parallel to the first main shaft, wherein a plurality of bag breaking auxiliary knives which are distributed at equal intervals are sequentially sleeved on the first auxiliary shaft; each bag breaking auxiliary knife and each bag breaking main knife are sequentially staggered and matched up and down relatively. The utility model can carry out rapid, stable and reliable bag breaking treatment on the solid garbage bags.

Description

Bag breaking knife set for solid garbage bag breaking machine

Technical Field

The utility model relates to a solid garbage bag breaking device, in particular to a bag breaking knife set for a solid garbage bag breaking machine.

Background

Along with the continuous progress of society and the rapid development of urban, the quantity of garbage generated by people's activities is more and more, a large amount of garbage causes environmental pollution, the requirement of green sustainable development is not met, the further development of society is severely limited, the situation of increasing garbage yield and worsening environmental conditions is faced, the concept and consciousness of environment protection and green sustainable development are continuously improved, and the garbage classification recycling is more and more emphasized, so that the influence of garbage on the environment can be furthest reduced, resources can be saved, and the production cost is reduced.

Solid garbage is the most common solid waste such as building decoration garbage, household garbage, industrial garbage and the like, people usually put the solid garbage into corresponding garbage bags, after the bagged solid garbage is conveyed to a garbage classification recycling treatment station, the conventional mode is to manually tear the garbage bags, pour the garbage into corresponding devices and then carry out the next classification and the like, so that the operation is inconvenient, the garbage amount is large, the labor intensity is high, the occupied labor is large, the consumption time is long, the efficiency is low, the cost is high, some fixed garbage is relatively sharp, the scratches, the bruises and the like of personnel are easy to cause, and the higher and higher production requirements cannot be met.

Disclosure of Invention

The utility model aims to provide a bag breaking knife set for a solid garbage bag breaking machine, which can solve at least one of the technical problems, and the technical scheme of the utility model is as follows:

a bag breaking knife set for a solid garbage bag breaking machine comprises an active bag breaking knife set and a swinging type auxiliary bag breaking knife set matched with the active bag breaking knife set, wherein a plurality of bag breaking main knives of the active bag breaking knife set and a plurality of bag breaking auxiliary knives of the auxiliary bag breaking knife set are made of hard wear-resistant materials, and an electric heating unit is arranged in the middle of one bag breaking auxiliary knife;

the active bag breaking knife set further comprises a first main shaft driven by the first driving device, a plurality of bag breaking main knives which are distributed at equal intervals are sequentially sleeved on the first main shaft, and the distance between the bag breaking main knives is the same as the distance between the bag breaking auxiliary knives;

the swing type auxiliary bag breaking knife set further comprises a first bracket, a second driving device for driving the first bracket to swing, and a first auxiliary shaft which is arranged on the first bracket and is parallel to the first main shaft, wherein a plurality of bag breaking auxiliary knives which are distributed at equal intervals are sequentially sleeved on the first auxiliary shaft;

each bag breaking auxiliary knife and each bag breaking main knife are sequentially staggered and matched up and down relatively.

In some embodiments, the first drive means is a first hydraulic motor disposed at one end of the first main shaft.

In some embodiments, one end of the first main shaft is provided with a first connection seat connected with the first hydraulic motor.

In some embodiments, the bag-breaking main blade is provided with a plurality of first blade teeth along its circumferential direction, and the bag-breaking auxiliary blade is provided with a plurality of second blade teeth along its circumferential direction.

In some embodiments, the first cutter teeth have a size greater than the second cutter teeth, and the number of first cutter teeth on the primary bag-breaking cutter is less than the number of second cutter teeth on the secondary bag-breaking cutter.

In some embodiments, the first bracket is mounted on the inner side of the first access door, the two second driving devices are respectively located on two sides of the first access door, the upper end of the first access door is provided with a first connecting block hinged with the corresponding connecting seat, two sides of the first access door are respectively provided with a second connecting block hinged with the second driving devices, and the two second driving devices can push the first access door and the first bracket to swing by taking the hinge of the first connecting block as the center.

In some embodiments, the first access door is provided with a first extension on each side, and the second connection block is provided on the first extension.

In some embodiments, the second driving device is a first hydraulic cylinder, and an output end of the first hydraulic cylinder is hinged with the second connecting block through a second rotating shaft.

In some embodiments, a first side frame is provided on an exterior side of the first access door.

In some embodiments, a first stiffener is disposed within the first frame.

The beneficial effects of the utility model are as follows: the bag breaking mechanism is arranged on a corresponding bag breaking machine, the active bag breaking knife set is correspondingly matched with the swing type auxiliary bag breaking knife set, the first driving device of the active bag breaking knife set drives the first main shaft to rotate, so that the bag breaking main knife on the first main shaft is matched with the bag breaking auxiliary knife on the first auxiliary shaft, bag breaking treatment is carried out on the bagged solid garbage entering the bag breaking machine, the bag breaking main knives and the bag breaking auxiliary knives are sequentially staggered, the bag breaking is ensured to be more complete and thorough, the effect is better, the cutters made of hard wear-resistant materials can keep longer service life, frequent bag breaking is avoided, the electric heating unit can plasticize the middle of the bag in advance, partial cracking of the bag is caused in advance, the bag breaking speed of the bag breaking main knife is greatly improved, the abrasion of the bag breaking main knife is reduced, and the service life and the bag breaking efficiency are further improved; and in the bag breaking process, when the material is too big, too much, crowded etc. probably blocked the material, second drive arrangement can drive first support in good time according to the demand and swing for each bag breaking auxiliary knife can swing for each bag breaking main knife, prevent to take place to block the material and damage equipment, cause accident etc. even, guarantee that equipment breaks the bag better, can satisfy the production demand that gets higher and higher, thereby the security of equipment has been improved, stability and reliability, the life of equipment has been prolonged, can be used for the broken bag equipment of solid waste such as building decoration rubbish, domestic waste, industrial waste, be convenient for to the follow-up handling of solid waste, the range of application is wide, time and resource have been saved, manufacturing cost has been reduced, the application and the development of equipment have been enlarged.

In addition, in the technical scheme of the utility model, the technical scheme can be realized by adopting conventional means in the field without specific description.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a bag-breaking knife set for a solid garbage bag-breaking machine according to an embodiment of the present utility model.

Fig. 2 is a partial enlarged view of fig. 1 a according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of a bag-breaking knife set for a solid garbage bag-breaking machine according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of a first main shaft and a first auxiliary shaft according to an embodiment of the present utility model.

The reference numerals in the drawings indicate that the second connecting seat 1, the first access door 2, the first door body 21, the first protruding portion 211, the first frame 212, the first reinforcing rib 213, the first connecting block 22, the first connecting plate 221, the first connecting hole 222, the second connecting block 23, the second connecting plate 231, the second connecting hole 232, the active bag-breaking blade set 3, the first driving device 31, the first hydraulic motor 311, the first main shaft 32, the bag-breaking main blade 33, the first blade teeth 331, the first connecting seat 34, the swing-type auxiliary bag-breaking blade set 4, the first bracket 41, the second driving device 42, the first hydraulic cylinder 421, the second rotating shaft 422, the second flange 4221, the second locking piece 423, the first rotating shaft 424, the first auxiliary shaft 43, the bag-breaking auxiliary blade 44, and the second blade teeth 441.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are illustrative of some, but not all embodiments of the utility model and are not intended to limit the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "both ends", "two sides", "bottom", "top", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "superior," "subordinate," "primary," "secondary," and the like are used for descriptive purposes only and may be used simply to more clearly distinguish between different components and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 4, there is schematically shown a bag-breaking knife set for a solid garbage bag-breaking machine according to the present utility model, mainly for mounting on a corresponding bag-breaking machine, for breaking bags of solid garbage entering the bag-breaking machine. The bag breaking machine comprises an active bag breaking knife set and a swinging type auxiliary bag breaking knife set matched with the active bag breaking knife set, wherein a plurality of bag breaking main knives 33 of the active bag breaking knife set 3 and a plurality of bag breaking auxiliary knives 44 of the auxiliary bag breaking knife set 4 are made of hard wear-resistant materials, and an electric heating unit is arranged in the middle one of the bag breaking auxiliary knives 44; the cutter made of the hard wear-resistant material can keep longer service life, so that the frequent bag breaking is avoided, the electric heating unit can plasticize the middle of the bag in advance, so that the bag is locally cracked in advance, the bag breaking speed of the bag breaking main cutter 33 is greatly improved, the abrasion loss of the bag breaking main cutter 33 is reduced, and the service life and the bag breaking efficiency are further improved;

the active bag-breaking knife set 3 further comprises a first main shaft 32 driven by the first driving device 31, a plurality of bag-breaking main knives 33 which are distributed at equal intervals are sequentially sleeved on the first main shaft 32, and the distance between the bag-breaking main knives 33 is the same as the distance between the bag-breaking auxiliary knives 44;

the swing type auxiliary bag breaking knife set 4 further comprises a first bracket 41, a second driving device 42 for driving the first bracket 41 to swing, and a first auxiliary shaft 43 which is arranged on the first bracket 41 and is parallel to the first main shaft 32, wherein a plurality of bag breaking auxiliary knives 44 which are distributed at equal intervals are sequentially sleeved on the first auxiliary shaft 43;

the auxiliary bag breaking cutters 44 and the main bag breaking cutters 33 are staggered in sequence and matched up and down.

In the use process, this broken bag mechanism installs on corresponding broken bag machine, the corresponding cooperation of initiative broken bag knife tackle 3 and supplementary broken bag knife tackle 4 of swing, the first drive arrangement 31 of initiative broken bag knife tackle 3 drives first main shaft 32 and rotates, make the broken bag main knife 33 on the first main shaft 32 cooperate with the broken bag auxiliary knife 44 on the first auxiliary shaft 43, thereby carry out broken bag processing to the solid waste that gets into broken bag machine, each broken bag main knife 33 and each broken bag auxiliary knife 44 stagger in proper order and set up and can guarantee broken bag more completely, thoroughly, the effect is better, and in broken bag in-process, when the material is too big, too much, when crowded etc. probably block the material, second drive arrangement 42 can drive first support 41 in good time and swing as required, make each broken bag auxiliary knife 44 can swing for each broken bag main knife 33, prevent that the material from taking place to block and damage equipment, even cause accident etc. guarantee that equipment carries out broken bag better.

The first driving means 31 may employ a rotary cylinder, a servo motor, a hydraulic motor, or the like. The first driving device 31 is a first hydraulic motor 311, the first hydraulic motor 311 is arranged at one end of the first main shaft 32, and the hydraulic motor has the advantages of high power, quick and frequent start and stop, forward and reverse rotation, small current impact, convenience in automatic control of overload accidents, strong capability of resisting severe environments and the like, such as being applicable to severe environments such as dust, sewage, oil stains and the like, and the first hydraulic motor 311 is convenient for driving the first main shaft 32 to perform forward and reverse rotation, so that bag breaking of equipment is guaranteed, material blocking is prevented and the like.

One end of the first main shaft 32 is provided with a first connecting seat 34 connected with the first hydraulic motor 311, so that the operation is more convenient, the installation of the first hydraulic motor 311 is facilitated, and the structure is more stable and reliable.

The bag-breaking main knife 33 is provided with a plurality of first knife teeth 331 along the circumferential direction thereof, the bag-breaking auxiliary knife 44 is provided with a plurality of second knife teeth 441 along the circumferential direction thereof, the size of the first knife teeth 331 is larger than that of the second knife teeth 441, the shape of the first knife teeth 331 is generally approximately the same as that of the second knife teeth 441, the number of the first knife teeth 331 on the bag-breaking main knife 33 is less than that of the second knife teeth 441 on the bag-breaking auxiliary knife 44, the plurality of first knife teeth 331 are uniformly distributed along the circumferential direction of the bag-breaking main knife 33, and the plurality of second knife teeth 441 are uniformly distributed along the circumferential direction of the bag-breaking auxiliary knife 44, so that the bag breaking is more complete and thorough, and the effect is better. The number of first cutter teeth 331 and second cutter teeth 441 is dependent on specific requirements.

The first support 41 is installed in the first door body 21 of first access door 2, two second drive arrangement 42 are located the both sides of first access door 2 respectively, the thrust is more even, the upper end of first access door 2 is provided with first connecting block 22, first connecting block 22 is used for articulating with the corresponding connecting seat in the bag breaker frame, the both sides of first access door 2 are provided with second connecting block 23 respectively, second connecting block 23 articulates with the output of second drive arrangement 42, the other end of second drive arrangement 42 is usually articulated with the second connecting seat 1 that sets up in the bag breaker frame, two second drive arrangement 42 can promote first access door 2 and first support 41 and use the articulated department of first connecting block 22 to swing steadily, thereby with supplementary bag breaker group 4 of swing type and first access door 2 integration, the structure has been simplified, the operation is more convenient, also be convenient for opening and closing of first access door 2.

The both sides of first access door 2 are provided with first extension 211 respectively, and second connecting block 23 sets up on first extension 211 to the outside of bag breaker frame can be stretched out respectively to first extension 211 of first access door 2 both sides, makes two second drive arrangement 42 can install in the outside of frame, and installation, easy operation such as maintenance avoid broken bag in-process to harm second drive arrangement 42 etc. also can increase the space in the bag breaker frame, be convenient for carry out broken bag processing etc. better.

The second driving device 42 can adopt modes of a cylinder, a hydraulic cylinder, an electric cylinder, a linear module, a screw rod mechanism and the like, and can adopt the mode of the hydraulic cylinder, and the hydraulic cylinder has the advantages of simple structure, reliable work, no transmission clearance, large power, stable movement, strong severe environment resistance and the like, and can avoid a speed reducer. The second driving device 42 is a first hydraulic cylinder 421, the output end of the first hydraulic cylinder 421 is hinged to the second connection block 23 through a second rotating shaft 422, the output end of the first hydraulic cylinder 421 is usually provided with a connector rotationally connected to the second rotating shaft 422, and the first hydraulic cylinder 421 and the first hydraulic motor 311 may share a hydraulic station.

The second connecting block 23 comprises two second connecting plates 231 which are symmetrically arranged, second connecting holes 232 which are matched with the second rotating shaft 422 are respectively formed in the two second connecting plates 231, a second flange 4221 is arranged at one end of the second rotating shaft 422, a second locking piece 423 is arranged at the other end of the second rotating shaft 422, the second rotating shaft 422 is connected with the two second connecting plates 231 through the second flange 4221 and the second locking piece 423, and the second rotating shaft 422 is axially fixed. The second locking piece 423 is one of a shaft retainer ring, a lock nut, or a cotter pin.

One end of the first hydraulic cylinder 421 away from the second connection block 23 is hinged to the second connection block 1 through the first shaft 424, and the above-mentioned structural manner of the second shaft 422 and the second locking member 423 may be referred to.

The first connecting block 22 can be one, two or more, and is usually two symmetrically arranged, so that the stress is more uniform, more stable and reliable. The first connecting block 22 includes two first connecting plates 221 symmetrically disposed, and the two first connecting plates 221 are respectively provided with a first connecting hole 222 for matching with a corresponding rotating shaft, and the first connecting hole 222 is rotationally connected with the corresponding rotating shaft, so that the structural mode of the second rotating shaft 422 and the second locking member 423 can be referred to.

The first access door 2 is obliquely arranged, so that the swing type auxiliary bag breaking knife set 4 can swing more conveniently, the rotation distance of opening and closing the first access door 2 is shortened, and the lengths of the first hydraulic cylinder 421 and the like are reduced.

The outside of first access door 2 is provided with first frame 212, and the structure is more firm, and the outward appearance is also better. The first frame 212 is further internally provided with first reinforcing ribs 213, and the number and arrangement of the first reinforcing ribs 213 are determined according to specific conditions, so that the structure is more stable. The plurality of first reinforcing ribs 213 can also form a net structure in a crisscross manner, so that the structure is more stable and reliable.

The first auxiliary shaft 43 may be driven by a corresponding driving device, such as a rotary cylinder, a servo motor, or a hydraulic motor, and the first auxiliary shaft 43 may be driven by a hydraulic motor, so that one hydraulic station may be shared with the first hydraulic cylinder 421 and the first hydraulic motor 311.

Compared with the prior art, the utility model has the advantages that: the bag breaking knife group is arranged on a corresponding bag breaking machine, the swing type auxiliary bag breaking knife group 4 is arranged on the inner side of the first maintenance bin door 2, the active bag breaking knife group 3 is correspondingly matched with the swing type auxiliary bag breaking knife group 4, the first driving device 31 of the active bag breaking knife group 3 drives the first main shaft 32 to rotate, so that the bag breaking main knife 33 on the first main shaft 32 is matched with the bag breaking auxiliary knife 44 on the first auxiliary shaft 43, the bag breaking main knives 33 and the bag breaking auxiliary knives 44 are sequentially staggered, the size of the first knife teeth 331 is larger than the size of the second knife teeth 441, the number of the first knife teeth 331 on the bag breaking main knife 33 is smaller than the number of the second knife teeth 441 on the bag breaking auxiliary knife 44, the bag breaking can be ensured to be more complete and thorough, the effect is better, in the bag breaking process, when the materials are excessively large, too much, crowded and the like, the materials can be blocked, the second driving device 42 can timely drive the swing type auxiliary bag-breaking knife group 4 to swing relative to the active bag-breaking knife group 3 through the second connecting block 23 hinged with the second driving device, so that each bag-breaking auxiliary knife 44 can swing relative to each bag-breaking main knife 33, damage to equipment caused by material blockage and even accidents and the like are prevented, the equipment is guaranteed to better break bags, higher and higher production requirements can be met, the first access door 2 is convenient to open and close, the first driving device 42 adopts a first hydraulic cylinder 421, the first driving device 31 adopts a first hydraulic motor 311 to drive the first main shaft 32 to positively and negatively rotate, the first auxiliary shaft 43 can also adopt a hydraulic motor to drive the positive and negatively rotate, the material blockage and the like can be better prevented, the equipment is guaranteed to better break bags, the first access door 2 can also share a hydraulic station as a power source, the first access door 2 is obliquely arranged, the auxiliary bag-breaking knife group 4 more convenient to swing is swung, the outside of first access door 2 is provided with first frame 212, be provided with vertically and horizontally staggered first strengthening rib 213 that is network structure in the first frame 212, the structure is more firm, the outside of frame can be stretched out respectively to the first extension 211 of first access door 2 both sides, make two first drive arrangement 31 can install in the outside of frame, installation, easy operation such as maintenance, avoid damaging second drive arrangement 42 etc. in the bag-breaking process, also can increase the space in the bag-breaking machine frame, be convenient for carry out bag-breaking processing etc. better, thereby the security of equipment is improved, stability and reliability have been prolonged, the life of equipment can be used for the broken bag equipment of solid waste such as building decoration rubbish, domestic waste, industrial waste, the subsequent treatment of the solid rubbish of being convenient for, the range of application is wide, time and resource have been saved, manufacturing cost has been reduced, the application and development of equipment have been enlarged.

The foregoing description of the embodiments of the present utility model is merely illustrative of the technical solutions of the present utility model and not limiting thereof, and it should be understood that modifications and substitutions can be made by those skilled in the art without departing from the inventive concept of the present utility model, and all such modifications and substitutions shall fall within the scope of the appended claims. In this case, all details may be replaced with equivalent elements, and the materials, shapes and sizes may be arbitrary.

Claims

1. A bag breaking knife set for a solid garbage bag breaking machine is characterized by comprising an active bag breaking knife set (3) and a swinging type auxiliary bag breaking knife set (4) matched with the active bag breaking knife set (3),

the bag breaking main cutters (33) of the active bag breaking cutter set (3) and the bag breaking auxiliary cutters (44) of the auxiliary bag breaking cutter set (4) are made of hard wear-resistant materials, and an electric heating unit is arranged in the middle one of the bag breaking auxiliary cutters (44);

the active bag breaking knife set (3) further comprises a first main shaft (32) driven by a first driving device (31), a plurality of bag breaking main knives (33) which are distributed at equal intervals are sequentially sleeved on the first main shaft (32), and the distance between the bag breaking main knives (33) is the same as the distance between the bag breaking auxiliary knives (44);

the swing type auxiliary bag breaking knife set (4) further comprises a first bracket (41), a second driving device (42) for driving the first bracket (41) to swing, and a first auxiliary shaft (43) which is arranged on the first bracket (41) and is parallel to the first main shaft (32), wherein a plurality of bag breaking auxiliary knives (44) which are distributed at equal intervals are sequentially sleeved on the first auxiliary shaft (43);

the bag breaking auxiliary cutters (44) and the bag breaking main cutters (33) are sequentially staggered and matched up and down.

2. A bag breaker knife package for a solid waste bag breaker according to claim 1, characterized in that the first drive means (31) is a first hydraulic motor (311), the first hydraulic motor (311) being arranged at one end of the first main shaft (32).

3. A bag breaker knife package for a solid waste bag breaker according to claim 2, characterized in that one end of the first main shaft (32) is provided with a first connection seat (34) connected with the first hydraulic motor (311).

4. A bag breaker blade set for a solid waste bag breaker according to claim 1, characterized in that the bag breaker main blade (33) is provided with a plurality of first blade teeth (331) along its circumferential direction, and the bag breaker auxiliary blade (44) is provided with a plurality of second blade teeth (441) along its circumferential direction.

5. A bag breaker blade set for a solid waste bag breaker as claimed in claim 4 wherein the first blade teeth (331) are larger in size than the second blade teeth (441), the number of first blade teeth (331) on the bag breaker main blade (33) being smaller than the number of second blade teeth (441) on the bag breaker auxiliary blade (44).

6. A bag breaker knife set for a solid waste bag breaker according to any one of claims 1-5, characterized in that the first bracket (41) is mounted on the inner side of a first access door (2), two second driving devices (42) are respectively located on two sides of the first access door (2), a first connecting block (22) for hinging with a corresponding connecting seat is arranged at the upper end of the first access door (2), a second connecting block (23) hinged with the second driving devices (42) is respectively arranged on two sides of the first access door (2), and the two second driving devices (42) can push the first access door (2) and the first bracket (41) to swing by taking the hinging position of the first connecting block (22) as the center.

7. The bag breaking knife set for the solid garbage bag breaking machine according to claim 6, wherein the two sides of the first access door (2) are respectively provided with a first protruding part (211), and the second connecting block (23) is arranged on the first protruding part (211).

8. A bag breaker knife package for a solid waste bag breaker as claimed in claim 6, wherein the second driving device (42) is a first hydraulic cylinder (421), and the output end of the first hydraulic cylinder (421) is hinged with the second connecting block (23) through a second rotating shaft (422).

9. The bag breaker knife set for a solid waste bag breaker as claimed in claim 6, wherein a first frame (212) is provided on the outside of the first access door (2).

10. A bag breaker knife package for a solid waste bag breaker as claimed in claim 9 wherein a first stiffener (213) is provided in the first rim (212).