Automatic bag opening machine

Abstract

The utility model discloses an automatic bag opening machine which comprises a feeding mechanism arranged outside a machine shell of the bag opening machine, the feeding mechanism comprises a conveying frame arranged in a sliding mode, a conveying belt is arranged on the conveying frame in a rotating mode, the bag opening machine is provided with a feeding port matched with the feeding mechanism, the bag opening machine is provided with a sealing mechanism used for sealing the feeding port, and the sealing mechanism is used for sealing the feeding port. A bag breaking position and a waste bag recycling position are arranged in the machine shell, a bag breaking mechanism and a waste bag recycling mechanism are arranged at the bag breaking position and the waste bag recycling position respectively, and a bag grabbing mechanism capable of moving to the bag breaking position and the waste bag recycling position is further arranged in the machine shell. Compared with the prior art, automatic bag feeding, bag taking, bag opening and waste bag recycling are achieved, the overall structural layout is compact, the equipment appearance is small, and the space needed for installation is smaller. The sealing performance of the machine shell is improved through cooperation of the feeding mechanism and the sealing mechanism, bag opening, bag shaking and waste bag recycling can be automatically completed in a sealed space, and pollution of the external environment to materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bag opening machines, in particular to an automatic bag opening machine. Background Art

[0002] In the food, pharmaceutical, health care, chemical, metallurgical and other industries, powders are usually packed in two bags, an outer bag and an inner bag. For broken inner bags, a robot is usually used to grab the bag and unpack it at the cutter. In order to smoothly transport the bag to the bag unpacking machine platform, a transition roller is usually set in the middle, or a running belt is also set on the bag unpacking machine. This makes it difficult for the bag unpacking machine to seal at the transition roller or running belt. When the bag unpacking machine is unpacking, dust will float out, which will increase the cleaning workload of the bag unpacking machine. Secondly, there are many devices in the bag unpacking machine, especially the bag grabbing mechanism, which has many and complex structures and many cleaning dead corners. It is difficult to clean it with a fixed cleaning nozzle in the bag unpacking machine. Utility Model Content

[0003] The utility model provides an automatic bag opening machine, which is used to solve the problem of dust floating out when the existing bag opening machine opens the bags.

[0004] The utility model provides an automatic bag opening machine, comprising a feeding mechanism arranged outside a casing of the bag opening machine, the feeding mechanism comprising a slidably arranged conveying frame, a conveying belt rotatably arranged on the conveying frame, the bag opening machine is provided with a feeding port cooperating with the feeding mechanism, the bag opening machine is provided with a sealing mechanism for sealing the feeding port, a bag breaking position and a waste bag recovery position are arranged in the casing, the bag breaking position and the waste bag recovery position are respectively provided with a bag breaking mechanism and a waste bag recovery mechanism, and a bag grabbing mechanism which can be moved to the bag breaking position and the waste bag recovery position is also arranged in the casing.

[0005] Preferably, the bag breaking mechanism includes a hopper and a bag breaking assembly arranged at the upper end of the hopper, the bag breaking assembly includes a plurality of bag breaking rods, the bag breaking rods are provided with blades, the bag breaking rods are connected to a bag breaking cylinder for driving them to move, and the plurality of bag breaking rods are distributed in an X shape.

[0006] Preferably, the waste bag recovery mechanism includes a waste bag recovery bucket and an auger rotatably disposed in the waste bag recovery bucket.

[0007] Preferably, the casing is detachably connected to a quick-release door, a telescopic member is fixed to the quick-release door, a front end of the telescopic member is fixed to the bag grabbing mechanism, a rear end of the telescopic member is rotatably arranged on a moving block, and the moving block moves horizontally outside the casing.

[0008] Preferably, the sealing mechanism comprises a sealing plate and a first cylinder, the sealing plate is fixed to the piston rod of the first cylinder, and an air seal is provided between the sealing plate and the feed port.

[0009] Preferably, a dust suction mechanism is provided at the upper end of the bag removing machine, a filter assembly is provided on the air suction duct of the dust suction mechanism, and the filter assembly is connected to a back-blowing assembly.

[0010] Preferably, the bag unpacking machine is provided with a plurality of cleaning balls, some of which are distributed on the hopper, and some of which are distributed on the waste bag recovery hopper.

[0011] Preferably, a rotating shaft is rotatably arranged between the moving block and the tail end of the telescopic member.

[0012] Preferably, a guide mechanism is provided in the bag opening machine, and the guide mechanism is fixedly connected to the bag grabbing mechanism.

[0013] Preferably, the bag grabbing mechanism includes: a protective cover, a lifting cylinder and a bag grabbing assembly, the lower end of the lifting cylinder located in the protective cover is fixed to the bag grabbing assembly, the protective cover is respectively fixed to the guide mechanism and the telescopic member, and the lifting cylinder is used to drive the bag grabbing assembly to move up and down.

[0014] Compared with the prior art, the utility model realizes automatic bag feeding, bag taking, bag unloading, bag shaking and waste bag recycling, and the overall structure layout is compact, the equipment is small in size, and the installation space required is also smaller. The cooperation of the feeding mechanism and the sealing mechanism improves the sealing of the casing, so that bag unloading, bag shaking and waste bag recycling can be automatically completed in the sealed space, reducing the pollution of the external environment to the material, and also avoiding the dust from being blown out, meeting the requirements of the clean area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the bag grabbing mechanism of the utility model being moved outside the casing;

[0018] Figure 3 It is a top view of the bag breaking mechanism of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the utility model;

[0020] Figure 5 for Figure 3 A top view of a part of the structure;

[0021] Figure 6 It is a partial structural schematic diagram of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the feeding mechanism of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the bag grabbing mechanism of the utility model when grabbing a bag;

[0024] Fig. 9 It is a structural schematic diagram of the bag grabbing mechanism of the utility model when unloading bags.

[0025] Reference numerals:

[0026] 100. Bag opener, 200. Bag breaking mechanism, 300. Waste bag recovery mechanism, 1. Casing, 2. Feeding mechanism, 021. Conveyor rack, 022. Conveyor belt, 011. Feed port, 3. Sealing mechanism, 4. Quick-release door, 5. Telescopic part, 6. Bag grabbing mechanism, 7. Moving block, 8. Slide rail mounting seat, 9. Organ cover, 031. Sealing plate, 032. First cylinder, 10. Guide mechanism, 11. Dust suction mechanism, 12. Filter assembly, 13. Backflush assembly, 14. Cleaning ball, 15. Hopper, 16. Waste bag recovery hopper, 17. Bag taking position, 18. Bag breaking position, 19. Waste bag recovery position, 20. Auger, 21. Bag breaking rod, 22. Blade, 23. Bag breaking cylinder. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See attached Figure 1 and attached Figure 7The present embodiment provides an automatic bag opening machine, including a feeding mechanism 2 arranged outside the housing 1 of the bag opening machine 100, the feeding mechanism 2 including a sliding conveying frame 021, a conveying belt 022 rotatably arranged on the conveying frame 021, the bag opening machine 100 is provided with a feeding port 011 cooperating with the feeding mechanism 2, the bag opening machine 100 is provided with a sealing mechanism 3 for sealing the feeding port 011, a bag breaking position 18 and a waste bag recovery position 19 are provided in the housing 1, a bag breaking mechanism 200 and a waste bag recovery mechanism 300 are provided at the bag breaking position 18 and the waste bag recovery position 19 respectively, and a bag grabbing mechanism 6 capable of moving to the bag breaking position 18 and the waste bag recovery position 19 is also provided in the housing 1. The material bag stops after being conveyed to the middle position of the conveying belt 022, and the sealing mechanism 3 opens the feeding port 011 of the bag opening machine 100, refer to the attached Figure 6 , the feeding mechanism 2 pushes the conveying rack 021 and the bag thereon into the bag opening machine 100, and after reaching the predetermined position. The conveyor belt 022 runs forward, and at the same time, the feeding mechanism 2 drives the conveying rack 021 to move back, so as to unload the bag at the bag taking position 17 on the platform of the bag opening machine 100. After the conveying rack 021 exits the bag opening machine 100, the sealing mechanism 3 reseals the feed port 011, so that the bag opening machine 100 can prevent dust from escaping from the feed port 011 when unpacking the bag. This unloading method can smoothly deliver the bag to the required accurate position (bag taking position 17) inside the bag opening machine 100, and ensure that the bag is not deformed, so as to avoid affecting the bag grabbing mechanism 6 to grab the bag. Secondly, the feeding mechanism 2 is installed outside the bag opening machine 100, which will not affect the sealing and cleaning of the bag opening machine 100, and does not occupy the space of the bag opening machine 100, so that the structure of the bag opening machine 100 becomes simple and the cleaning dead corners are reduced. Third, when the material bag is on the conveyor belt 022, there will be a phenomenon of powder leakage. When the conveyor belt 022 is unloading, the leaked dust will be poured into the material chamber of the bag unpacking machine 100, which can effectively reduce the dust from flowing outside. After the material bag is transported to the bag taking position 17, the bag grabbing mechanism 6 grabs the material bag and moves it to the bag breaking position 18, and the bag breaking mechanism 200 breaks the bag for unloading. After unloading, the bag grabbing mechanism 6 grabs the empty bag and moves it to the waste bag recovery position 19, and then the waste bag recovery mechanism 300 recovers the empty bag.

[0029] One embodiment of the bag breaking mechanism 200: Figure 3 and attached Figure 4 The bag breaking mechanism 200 includes a hopper 15 and a bag breaking assembly disposed at the upper end of the hopper 15. The bag breaking assembly includes a plurality of bag breaking rods 21. A blade 22 is disposed at the front end of the bag breaking rod 21. A bag breaking cylinder 23 is connected to the bag breaking rod 21 to drive the bag breaking rod to move. The plurality of bag breaking rods 21 are distributed in an X shape. A mesh plate is disposed between the bag breaking rod 21 and the hopper 15. The mesh plate can bear the weight of the bag when the blade 22 cuts the bag, making the bag cutting more stable. It can also prevent the waste bag from falling into the hopper 15 when the empty bag shakes. The mesh plate does not need to be installed or removed with fasteners and can be directly taken out for cleaning. For details, refer to the attached Figure 5There are four bag breaking rods 21, and the blades 22 on the four bag breaking rods 21 are initially close to each other in the middle of the hopper 15. When the bag grabbing mechanism 6 grabs the bag and drops it on the blades 22, the piston rod of the bag breaking cylinder 23 retracts to drive the blades 22 to move outward, and the four blades 22 cross-cut the bag, and the material falls into the hopper 15.

[0030] An implementation of the waste bag recovery mechanism 300: The waste bag recovery mechanism 300 includes a waste bag recovery bucket 16 and an auger 20 rotatably disposed in the waste bag recovery bucket 16. The bag grabbing mechanism 6 grabs the empty bag to the top of the waste bag recovery bucket 16, the bag grabbing mechanism 6 releases the empty bag, the empty bag falls into the waste bag recovery bucket 16, and the auger 20 squeezes the empty bag out for recovery.

[0031] As another embodiment of the present invention: Figure 2 , the housing 1 is detachably connected with a quick-release door 4, a telescopic member 5 is fixed on the quick-release door 4, the front end of the telescopic member 5 is fixed to the bag grabbing mechanism 6, the rear end of the telescopic member 5 is rotatably arranged on the moving block 7, and the moving block 7 moves horizontally outside the housing 1. Specifically, the moving block 7 is a guide rail, and the guide rail is slidably connected to the slide rail mounting seat 8 in the housing 1. The telescopic member 5 drives the bag grabbing mechanism 6 to move back and forth between the bag taking position 17, the bag breaking position 18, and the waste bag recovery position 19. A part of the telescopic member 5 in the utility model is arranged outside the bag unpacking machine 100, so it can effectively reduce the space occupied by the bag grabbing mechanism 6 in the bag unpacking machine 100. The quick-release door 4 is removed from the bag unpacking machine 100, and the bag unpacking machine 100 leaves a hole that is compatible with the quick-release door 4, and the moving guide rail moves the bag grabbing mechanism 6 and the telescopic member 5 out of the hole. When the bag grabbing mechanism 6 and the telescopic member 5 are outside the bag unpacking machine 100, it is convenient to disassemble and clean them.

[0032] An implementation of the sealing mechanism 3: The sealing mechanism 3 includes a sealing plate 031 and a first cylinder 032. The sealing plate 031 is fixed to the piston rod of the first cylinder 032, and an air seal is provided between the sealing plate 031 and the feed port 011. When feeding is required, the air seal is first deflated, and then the first cylinder 032 lowers the sealing plate 031 to open the feed port 011. After the feeding mechanism 2 delivers the material bag to the bag taking position 17, the first cylinder 032 raises the sealing plate 031 to the feed port 011, and the air seal is inflated to seal the feed port 011.

[0033] As another embodiment of the present invention: a dust collecting mechanism 11 is provided at the upper end of the bag opening machine 100, a filter assembly 12 is provided on the air suction duct of the dust collecting mechanism 11, and the filter assembly 12 is connected to a backflush assembly 13. After the air seal is inflated to seal the feed port 011, the dust collecting mechanism 11 performs a suction action to form a negative pressure in the housing 1, thereby preventing dust from being blown out during the subsequent bag opening work.

[0034] As another embodiment of the present invention: the bag opening machine 100 is provided with a plurality of cleaning balls 14, some of which are distributed on the hopper 15, some of which are distributed on the waste bag recovery hopper 16, and some of which are arranged on the top of the housing 1, so as to be able to automatically clean in all directions. Specifically, the bottom of the housing 1 is provided with a slope around it, so that the water flow is concentrated to the middle hopper 15 during cleaning.

[0035] As another embodiment of the present utility model: a guide mechanism 10 is provided in the bag opening machine 100, and the guide mechanism 10 is fixedly connected to the bag grabbing mechanism 6. The telescopic member 5 needs to drive the bag grabbing mechanism 6 to move between the bag taking position 17, the bag breaking position 18, and the waste bag recovery position 19, and the required stroke is relatively long. A long stroke will reduce the service life and running stability of the telescopic member 5. The guide mechanism 10 in the bag opening machine 100 can support and guide the bag grabbing mechanism 6, thereby reducing the load of the telescopic member 5, which is conducive to extending the service life of the telescopic member 5.

[0036] As another embodiment of the present invention: a rotating shaft is rotatably arranged between the guide rail and the tail end of the telescopic member 5, and the rotating shaft is arranged to facilitate rotating the bag grabbing mechanism 6 to a place farther away from the bag opening machine 100, thereby obtaining a larger disassembly and cleaning space.

[0037] A specific implementation of the bag grabbing mechanism 6: Figure 8 and attached Fig. 9 The bag grabbing mechanism 6 includes: a protective cover, a lifting cylinder and a bag grabbing assembly. The lower end of the lifting cylinder located in the protective cover is fixed to the bag grabbing assembly, and the solenoid valve is also sealed in the protective cover. The protective cover is fixed to the guide mechanism 10 and the telescopic member 5. The lifting cylinder is used to drive the bag grabbing assembly to move up and down. The protective cover fully seals the lifting cylinder and the solenoid valve to prevent dust from entering during bag removal and water from entering during cleaning.

[0038] As another embodiment of the utility model: the bag grabbing assembly includes a baffle and a gripper arranged opposite to each other, the gripper is rotatably arranged on the baffle, the gripper is connected to an opening and closing cylinder, the baffle is fixed to the lifting cylinder, and the opening and closing cylinder is used to drive the gripper to close and open. Specifically, the baffle is provided with an avoidance groove adapted to the gripper.

[0039] The bag grabbing assembly also includes a cylinder mounting plate and a shaking cylinder. The cylinder mounting plate is fixed to the lifting cylinder. The shaking cylinder is fixed to the bottom of the cylinder mounting plate. The lower end of the shaking cylinder is fixed to the baffle. A guide rod is provided between the baffle and the cylinder mounting plate. The guide rod is slidably connected to the cylinder mounting plate.

[0040] As another implementation mode of the utility model: a guide shield is fixed to the upper end of the guide rod on the cylinder mounting plate to prevent dust from entering.

[0041] Specifically, a spring is installed on the guide rod, and the spring is used for buffering when the shaking cylinder is quickly extended and retracted.

[0042] As another embodiment of the present utility model: the protective cover is provided with an interface connected to the shaking cylinder and the opening and closing cylinder, and the protective cover is provided with a clamp joint, and a hose is connected to the clamp joint. The sensor cables and air pipes of the shaking cylinder and the opening and closing cylinder are connected to the protective cover through the interface, and then connected to the top of the inner cavity of the bag unpacking machine 100 through a hose with a clamp joint, and then connected to the outside of the bag unpacking machine 100. The hose with the clamp joint is suspended in the inner cavity, which does not affect the movement of the gripper, and there is no problem of sanitary dead corners that are prone to occur in the drag chain structure. In this setting, cables and air pipes are centrally connected through multiple interfaces, which can reduce wiring.

[0043] The telescopic part 5 located in the bag opening machine 100 is covered with an accordion cover 9. Specifically, the accordion cover 9 is arranged on the telescopic part 5 between the bag grabbing mechanism 6 and the quick-release door 4. The accordion cover 9 can effectively solve the risk of dust and water entering the telescopic part 5, and at the same time make the telescopic part 5 adapt to the working environment containing salt and corrosive powders.

[0044] An implementation manner of the guide mechanism 10; the guide mechanism 10 includes a mounting seat, a guide optical axis and a linear bearing, the protective cover is detachably connected to the mounting seat, the mounting seat is fixed to the linear bearing, the linear bearing is slidably connected to the guide optical axis, and the guide optical axis is fixed in the bag unpacking machine 100.

[0045] Specifically, the telescopic member 5 is a multi-section electric cylinder. The quick-release door 4 is pressed to the side of the bag opening machine 100 by a quick clamp to achieve sealing.

[0046] Specifically, the guide rail is installed on the top of the casing 1 of the bag opening machine 100 through the slide rail mounting seat 8.

[0047] The utility model can realize that the bag grabbing mechanism 6 is installed outside and then pushed into the inner cavity of the bag opening machine 100 through the movement of the guide rail. At the same time, when cleaning is needed, the quick clamp on the quick release door 4 is opened, and the bag grabbing mechanism 6 can be quickly moved to the outside of the bag opening machine 100 for cleaning. Secondly, a part of the telescopic member 5 is arranged outside the bag opening machine 100, and this arrangement can reduce the installation space required for the bag grabbing mechanism 6 in the bag opening machine 100. Thirdly, the arrangement of the quick release door 4 allows the bag grabbing mechanism 6 to operate in a sealed space, reducing the pollution of the material to the external environment and meeting the requirements of the clean area.

[0048] The utility model also provides a bag unpacking process of an automatic bag unpacking machine, comprising the following steps:

[0049] Step 1: The material bag is conveyed to the conveyor belt 022, the sealing mechanism 3 opens the feed inlet 011, and the conveyor frame 021 moves forward and extends from the feed inlet 011 into the housing 1;

[0050] Step 2: The conveyor belt 022 conveys the material bag forward, and the conveyor frame 021 moves backward, and the material bag falls onto the bag taking position 17 of the platform;

[0051] Step 3: The conveying rack 021 withdraws from the housing 1, the sealing mechanism 3 seals the feed port 011, the dust collecting mechanism 11 extracts air in the housing 1 to form a negative pressure, and the bags are unloaded in a closed space to reduce the pollution of the external environment to the materials and avoid dust from being blown out, meeting the requirements of the clean area;

[0052] Step 4: The bag grabbing mechanism 6 grabs the bag at the bag taking position 17 and moves to the bag breaking position 18. When the bag falls onto the blade 22, the bag breaking cylinder 23 drives the blade 22 to move and cut the bag, and the material is unloaded into the hopper 15.

[0053] Step 5: The bag grabbing mechanism 6 moves the unloaded material bag to the waste bag recovery position 19, the bag grabbing mechanism 6 releases the empty bag, and the empty bag falls into the auger 20 below, and the auger 20 wrings out the waste bag for recovery;

[0054] Step 6: Repeat steps 1 to 5 to remove one bag;

[0055] In step 3, after the dust collecting mechanism 11 works for a predetermined time, the back-flushing assembly 13 is started to back-flush the filter assembly 12 to prevent the filter element in the filter assembly 12 from being clogged.

[0056] When the bag unpacking machine 100 needs to be cleaned after the bag unpacking is completed, the quick-release door 4 on the housing 1 is disassembled, and the bag grabbing mechanism 6 is moved from the inside of the housing 1 to the outside of the housing 1 through the guide rail, and then the bag grabbing mechanism 6 is rotated to make the bag grabbing mechanism 6 away from the housing 1, and the various devices in the housing 1 are cleaned by the cleaning ball 14, and the bag grabbing mechanism 6 is cleaned outside the housing 1. Through this design, the inner cavity of the bag unpacking machine 100 is automatically cleaned, and the difficult-to-clean parts are quickly moved out of the housing 1 for cleaning, so that the bag unpacking machine 100 can be cleaned quickly and thoroughly.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An automatic bag opening machine, characterized in that: The bag opening machine (100) comprises a feeding mechanism (2) arranged outside a casing (1) of the bag opening machine (100), the feeding mechanism (2) comprising a slidably arranged conveying frame (021), a conveying belt (022) being rotatably arranged on the conveying frame (021), the bag opening machine (100) being provided with a feeding port (011) cooperating with the feeding mechanism (2), the bag opening machine (100) being provided with a sealing mechanism (3) for sealing the feeding port (011), a bag breaking position (18) and a waste bag recovery position (19) being provided inside the casing (1), a bag breaking mechanism (200) and a waste bag recovery mechanism (300) being provided at the bag breaking position (18) and the waste bag recovery position (19) respectively, and a bag grabbing mechanism (6) being capable of moving to the bag breaking position (18) and the waste bag recovery position (19) being provided inside the casing (1).

2. The automatic bag opening machine according to claim 1, characterized in that: The bag breaking mechanism (200) comprises a hopper (15) and a bag breaking assembly arranged at the upper end of the hopper (15), the bag breaking assembly comprising a plurality of bag breaking rods (21), the bag breaking rods (21) being provided with blades (22), the bag breaking rods (21) being connected to bag breaking cylinders (23) for driving the bag breaking rods (21) to move, and the plurality of bag breaking rods (21) being distributed in an X shape.

3. The automatic bag opening machine according to claim 2, characterized in that: The waste bag recovery mechanism (300) comprises a waste bag recovery bucket (16) and an auger (20) rotatably disposed in the waste bag recovery bucket (16).

4. The automatic bag opening machine according to claim 1, characterized in that: The housing (1) is detachably connected to a quick-release door (4), a telescopic member (5) is fixed to the quick-release door (4), the front end of the telescopic member (5) is fixed to a bag grabbing mechanism (6), the rear end of the telescopic member (5) is rotatably arranged on a moving block (7), and the moving block (7) moves horizontally outside the housing (1).

5. The automatic bag opening machine according to claim 1, characterized in that: The sealing mechanism (3) comprises a sealing plate (031) and a first cylinder; the sealing plate (031) is fixed to the piston rod of the first cylinder; and an air seal is provided between the sealing plate (031) and the feed port (011).

6. The automatic bag opening machine according to claim 4, characterized in that: A dust suction mechanism (11) is provided at the upper end of the bag removing machine (100); a filter assembly (12) is provided on the air suction duct of the dust suction mechanism (11); and the filter assembly (12) is connected to a back-blowing assembly (13).

7. The automatic bag opening machine according to claim 3, characterized in that: The bag opening machine (100) is provided with a plurality of cleaning balls (14), a part of the cleaning balls (14) are distributed on the hopper (15), and a part of the cleaning balls (14) are distributed on the waste bag recovery hopper (16).

8. The automatic bag opening machine according to claim 4, characterized in that: A rotating shaft is rotatably arranged between the moving block (7) and the rear end of the telescopic member (5).

9. The automatic bag opening machine according to claim 1, characterized in that: The bag opening machine (100) is provided with a guide mechanism (10), and the guide mechanism (10) is fixedly connected to the bag grabbing mechanism (6).

10. The automatic bag opening machine according to claim 9, characterized in that: The bag grabbing mechanism (6) comprises: a protective cover, a lifting cylinder and a bag grabbing assembly. The lower end of the lifting cylinder located in the protective cover is fixed to the bag grabbing assembly. The protective cover is respectively fixed to the guide mechanism (10) and the telescopic member (5). The lifting cylinder is used to drive the bag grabbing assembly to move up and down.

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