Bag breaking device and automatic unpacking apparatus

Abstract

This application provides a bag-breaking device and an automatic unpacking device. The bag-breaking device includes a hopper, a swing arm, a cutter, and a drive component. The hopper has a receiving cavity, and the side wall of the hopper has a clearance hole communicating with the receiving cavity. The swing arm passes through the clearance hole and is hinged to the hopper. The cutter is fixedly connected to the portion of the swing arm located inside the receiving cavity. The drive component is located outside the receiving cavity and fixed relative to the hopper. The drive component is connected to the portion of the swing arm located outside the receiving cavity and is used to drive the swing arm to rotate around the hinge point between the swing arm and the hopper. In the bag-breaking device and automatic unpacking device provided by this application, based on the hinge between the swing arm and the hopper, the drive component drives the swing arm to rotate around the hinge point between the swing arm and the hopper. The rotation of the swing arm drives the cutter to rise and fall, avoiding the problem of cutter jamming caused by asynchronous movement when two cylinders drive the cutter to rise and fall. This improves the reliability and service life of the bag-breaking device and reduces the manufacturing cost of the bag-breaking device.

Description

Technical Field

[0001] This application relates to the field of battery material unpacking technology, and in particular to a bag-breaking device and an automatic unpacking equipment. Background Technology

[0002] Traditional unpacking equipment uses dual cylinders to drive the blades to lift and lower, thus breaking open ton bags. However, when the two cylinders move asynchronously, the forces on both sides of the blades become unbalanced, hindering their movement and easily causing the blades to jam. Utility Model Content

[0003] This application provides a bag-breaking device and an automatic unpacking equipment to solve the problem that the blade is prone to jamming during lifting.

[0004] In a first aspect, this application provides a bag-breaking device, which includes a hopper, a swing arm, a cutter, and a driving component. The hopper has a receiving cavity, and a clearance hole communicating with the receiving cavity is provided on the side wall of the hopper. The swing arm passes through the clearance hole and is hinged to the hopper. The cutter is fixedly connected to the portion of the swing arm located within the receiving cavity. The driving component is located outside the receiving cavity and fixed relative to the hopper. The driving component is connected to the portion of the swing arm located outside the receiving cavity and is used to drive the swing arm to rotate around the hinge point between the swing arm and the hopper.

[0005] In some embodiments, the swing arm is provided with a ventilation duct and a jet nozzle communicating with the ventilation duct. One end of the ventilation duct is used to communicate with an external air supply device, and the other end of the ventilation duct is connected to the receiving cavity through the jet nozzle.

[0006] In some embodiments, the bag-breaking device further includes a hinge seat and a pin. The hinge seat is fixedly connected to the hopper, and the hinge seat is provided with a clearance space communicating with the clearance hole. The pin is connected to the hinge seat and located within the clearance space. The swing arm is connected to the pin and can rotate relative to the hopper around the central axis of the pin.

[0007] In some embodiments, the cutting tool includes one or more blades, which are cross-connected to each other, and the area enclosed by the multiple blades is open.

[0008] In some embodiments, the blade includes a base and a cutting portion. The base is fixedly connected to the swing arm, and the cutting portion is connected to the side of the base away from the swing arm. Along the height direction of the hopper, the cutting portion protrudes in an arc shape or a cone shape toward the top of the hopper.

[0009] In some embodiments, the cutting portion is provided with a serrated structure and / or a wavy structure.

[0010] In some embodiments, the bag-breaking device further includes a first seal located within the receiving cavity, the first seal being used to seal the connection between the swing arm and the hopper and to seal the clearance hole, and / or, the bag-breaking device further includes a second seal located outside the receiving cavity, the second seal being used to seal the connection between the swing arm and the hopper and to seal the clearance hole.

[0011] In some embodiments, along the height direction of the hopper, the side of the swing arm near the top of the hopper is provided with an inclined surface or an arc surface.

[0012] In some embodiments, the distance between the connection point of the cutter and the swing arm and the hinge point of the swing arm and the hopper is a first distance, and the distance between the connection point of the drive member and the swing arm and the hinge point of the swing arm and the hopper is a second distance, wherein the first distance is greater than the second distance.

[0013] Secondly, this application provides an automatic unpacking device, which includes a cabinet and a bag-breaking device as described in any of the above claims, wherein the bag-breaking device is installed in the cabinet.

[0014] In the bag-breaking device and automatic unpacking equipment provided in this application, based on the hinge of the swing arm and the hopper, the drive component drives the swing arm to rotate around the hinge point between the swing arm and the hopper. The rotation of the swing arm drives the cutter to rise and fall, avoiding the problem of the cutter jamming caused by the asynchronous movement when the two cylinders drive the cutter to rise and fall. This improves the reliability and service life of the bag-breaking device, and reduces the manufacturing cost of the bag-breaking device. In addition, the fact that the drive component is set outside the receiving cavity also helps to avoid material contamination of the drive component, thus improving the reliability and service life of the drive component. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the automatic unpacking device provided in the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the bag-breaking device provided in the embodiments of this application.

[0018] Figure 3 This is a cross-sectional view of the bag-breaking device provided in the embodiments of this application.

[0019] Figure 4 This is a schematic diagram of the structure of the cutting tool provided in some embodiments of this application.

[0020] Figure 5 This is a schematic diagram of the blade structure provided in some embodiments of this application.

[0021] Figure 6 This is a cross-sectional view of the swing arm and the cutting tool provided in some embodiments of this application.

[0022] Key reference numerals in the attached drawings: Automatic unpacking device 1000; Bag breaking device 100; Hopper 10; Receiving cavity 101; Clearance hole 102; Clearance space 103; Hinge seat 11; Pin 12; First seal 131; Second seal 132; Swing arm 20; Ventilation pipe 201; Air nozzle 202; Knife 30; Blade 31; Base 311; Cutting part 312; Drive component 40; Fixed seat 41; Cabinet 50; Ton bag 60; Height direction Z.

[0023] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] It should be noted that the terminology in the specification, claims, and accompanying drawings of this application is for describing specific embodiments only and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0027] Please refer to the following: Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the automatic unpacking device 1000 provided in this application embodiment. Figure 2 This is a schematic diagram of the bag-breaking device 100 provided in the embodiments of this application. Figure 3 This is a cross-sectional view of the bag-breaking device 100 provided in this application embodiment. The automatic unpacking equipment 1000 includes a cabinet 50 and a bag-breaking device 100. The bag-breaking device 100 is installed in the cabinet 50. The bag-breaking device 100 is used to break open the ton bag 60 to allow the material in the ton bag 60 to flow out. The ton bag 60 is used to load granular or powdery solid materials. The materials loaded in the ton bag 60 include, but are not limited to, battery materials, food materials, pharmaceutical materials, fertilizer materials, and building materials, etc., and the materials loaded in the ton bag 60 are not limited here. For example, in this application embodiment, the ton bag 60 is used to load battery materials. Battery materials are, for example, but not limited to, positive electrode materials, negative electrode materials, conductive agents or dispersants, etc.; or, various materials are mixed to form a battery mixture.

[0028] The bag-breaking device 100 includes a hopper 10, a swing arm 20, a cutter 30, and a drive unit 40. The hopper 10 has a receiving cavity 101. A clearance hole 102 communicating with the receiving cavity 101 is provided on the side wall of the hopper 10. The swing arm 20 passes through the clearance hole 102 and is hinged to the hopper 10. A portion of the swing arm 20 is located within the receiving cavity 101, and another portion of the swing arm 20 is also located within the receiving cavity 101. The cutter 30 is fixedly connected to the portion of the swing arm 20 located within the receiving cavity 101. The drive unit 40 is located outside the receiving cavity 101 and connected to the hopper 10. The drive unit 40 is connected to the portion of the swing arm 20 located outside the receiving cavity 101 and is used to drive the swing arm 20 to rotate around the hinge point between the swing arm 20 and the hopper 10.

[0029] When breaking the ton bag 60, the hook device moves the ton bag 60 into the hopper 10. The drive unit 40 drives the swing arm 20 to rotate around the hinge between the swing arm 20 and the hopper 10. The part of the swing arm 20 located in the receiving cavity 101 drives the cutter 30 to move towards the ton bag 60 and cuts the bottom of the ton bag 60, forming an opening at the bottom of the ton bag 60, allowing the material inside the ton bag 60 to flow into the hopper 10 through the opening. In this embodiment, the swing arm 20 is hinged to the hopper 10. The drive member 40 drives the swing arm 20 to rotate around the hinge point between the swing arm 20 and the hopper 10. The rotation of the swing arm 20 drives the cutter 30 to rise and fall. By setting one drive member 40, the cutter 30 can be driven to move relative to the hopper 10. This avoids the problem of the cutter 30 getting stuck due to asynchronous movement when two cylinders are used to drive the cutter 30 to rise and fall. This improves the reliability and service life of the bag breaking device 100 and reduces the manufacturing cost of the bag breaking device 100. In addition, the fact that the drive member 40 is set outside the receiving cavity 101 also helps to avoid material contamination of the drive member 40, thus improving the reliability and service life of the drive member 40.

[0030] Figure 1 The structure of the automatic package unpacking device 1000 illustrated in this application embodiment is merely a schematic diagram and does not constitute a specific limitation on the automatic package unpacking device 1000. In other embodiments of this application, the automatic package unpacking device 1000 may include... Figure 1 The automatic bag unpacking device 1000 may include, but is not limited to, hook devices, drive devices, and air supply devices, or may contain more or fewer components, or combinations of certain components, or different components. For example, the automatic bag unpacking device 1000 may also include hook devices for hooking ton bags 60 and for lifting ton bags 60 into the hopper 10. As another example, the automatic bag unpacking device 1000 may also include air supply devices for supplying air to the bag-breaking device 100. Figure 2 The structure of the bag-breaking device 100 illustrated in this application embodiment is merely a schematic representation and does not constitute a specific limitation on the bag-breaking device 100. In other embodiments of this application, the bag-breaking device 100 may include components that are larger than... Figure 2 The bag breaking device 100 may include more or fewer components, or combinations of certain components, or different components, such as a kneading structure, a dust removal structure, etc. For example, the bag breaking device 100 may also include a kneading structure installed on the hopper 10. The kneading structure is used to knead the ton bag 60 to accelerate the outflow of material from the ton bag 60 and reduce the residual material in the ton bag 60.

[0031] In this embodiment, the distance between the connection point of the cutter 30 and the swing arm 20 and the hinge point of the swing arm 20 and the hopper 10 is the first distance D1, and the distance between the connection point of the drive member 40 and the swing arm 20 and the hinge point of the swing arm 20 and the hopper 10 is the second distance D2. The first distance D1 is greater than the second distance D2. Thus, when the drive member 40 drives the swing arm 20 to rotate, the swing arm 20 amplifies the stroke of the drive member 40, giving the cutter 30 a larger range of motion and speed relative to the hopper 10. This facilitates the cutter 30 in breaking the ton bag 60, allowing it to quickly pierce and cut open the ton bag 60, improving the bag-breaking effect. The specific values ​​and ratios of the first distance D1 and the second distance D2 can be set according to actual needs and are not specifically limited in this application. The larger the ratio of the first distance D1 to the second distance D2, the greater the amplification of the movement of the drive member 40 by the swing arm 20, and the greater the range of motion and speed of the cutter 30. For example, the ratio of the first distance D1 to the second distance D2 can be 1.5, 2, 2.5, 3, 3.5, 4, etc.

[0032] The shape of the cross-section of the swing arm 20 can be, but is not limited to, a circle, an ellipse, a triangle, a rectangle, a regular polygon, an irregular polygon, or an irregular shape. The shape of the clearance hole 102 can also be, but is not limited to, a circle, an ellipse, a triangle, a rectangle, a regular polygon, an irregular polygon, or an irregular shape. For example, the shape of the clearance hole 102 is similar to the cross-sectional shape of the swing arm 20, meaning the shape of the clearance hole 102 and the cross-sectional shape of the swing arm 20 are of the same type. This facilitates sufficient movement space for the swing arm 20 during rotation, preventing collisions between the swing arm 20 and the wall of the clearance hole 102. In some embodiments, the shape of the clearance hole 102 and the cross-sectional shape of the swing arm 20 can also be set to different types of shapes.

[0033] In some embodiments, the bag-breaking device 100 further includes anti-collision pads. The anti-collision pads are located at the clearance hole 102. The anti-collision pads are disposed on the swing arm 20 and / or on the hopper 10, and are located on the side of the swing arm 20 along the height direction Z of the hopper 10, near the top and / or bottom of the hopper 10. The anti-collision pads protect the swing arm 20 from rigid collisions with the clearance hole 102, prevent damage to the swing arm 20 and the hopper 10 during collisions, and prevent the generation of debris during collisions, thus preventing debris from contaminating the material in the hopper 10. In some embodiments, the anti-collision pads may be disposed on the swing arm 20, and located on the side of the swing arm 20 along the height direction Z of the hopper 10, near the top or bottom of the hopper 10; or multiple anti-collision pads may be provided, with anti-collision pads respectively disposed on the side of the swing arm 20 near the top and bottom of the hopper 10. In some embodiments, anti-collision pads may be installed on the hopper 10, located on the side of the clearance hole 102 along the height direction Z of the hopper 10, near the top or bottom of the hopper 10. Alternatively, multiple anti-collision pads may be installed, with anti-collision pads respectively installed on the side of the clearance hole 102 near the top and bottom of the hopper 10. In some embodiments, multiple anti-collision pads may be installed, with anti-collision pads respectively installed at the clearance hole 102 of the swing arm 20 and the hopper 10. Wherein, after the automatic unpacking device 1000 is installed on the ground, the top of the hopper 10 is located on the side of the bottom of the hopper 10 furthest from the ground.

[0034] In some embodiments, the bag-breaking device 100 further includes a hinge seat 11 and a pin 12. The hinge seat 11 is fixedly connected to the hopper 10. A clearance space 103 communicating with a clearance hole 102 is provided in the hinge seat 11. The pin 12 is connected to the hinge seat 11 and located within the clearance space 103. The swing arm 20 is connected to the pin 12 and can rotate relative to the hopper 10 about the central axis of the pin 12. The pin 12 is rotatably connected to the hinge seat 11 and / or the swing arm 20. In some embodiments, the swing arm 20 has a shaft hole, and the pin 12 passes through the shaft hole. The pin 12 is rotatably connected to the swing arm 20, and the pin 12 is fixedly or rotatably connected to the hinge seat 11. In some embodiments, the pin 12 can be fixedly connected to the swing arm 20, and the pin 12 is rotatably connected to the hinge seat 11. The pin 12 and the swing arm 20 can be fixed together by welding, bonding, snap-fitting, or other methods. Alternatively, the pin 12 and the swing arm 20 can be integrally formed.

[0035] In some embodiments, the bag-breaking device 100 further includes an elastic sealing block. The elastic sealing block is disposed within the clearance space 103 and is sealed to the swing arm 20 and the hinge seat 11, and seals the clearance hole 102. The elastic sealing block is used to seal the clearance hole 102 to prevent material in the ton bag 60 from floating out of the receiving cavity 101 through the clearance hole 102 when falling, and to prevent obstruction of the rotation of the swing arm 20 relative to the hopper 10, so that the swing arm 20 can rotate smoothly relative to the hopper 10.

[0036] In some embodiments, the bag-breaking device 100 further includes a fixed base 41. The fixed base 41 is fixedly connected to the hopper 10. The drive member 40 is connected to the fixed base 41 to be connected to the hopper 10 via the fixed base 41. The drive member 40 can be configured as a cylinder to simplify the structure of the bag-breaking device 100 and reduce its manufacturing cost. One end of the drive member 40 is rotatably connected to the fixed base 41, and the other end is rotatably connected to the swing arm 20. The drive member 40 is located on the side of the swing arm 20 near the bottom of the hopper 10 along the height direction of the hopper 10. When the piston rod of the cylinder extends relative to the cylinder body, the portion of the swing arm 20 outside the receiving cavity 101 is pushed by the cylinder towards the top of the hopper 10, while the portion of the swing arm 20 within the receiving cavity 101 drives the cutter 30 towards the bottom of the hopper 10, separating the cutter 30 from the ton bag 60. When the piston rod of the cylinder retracts relative to the cylinder body, the portion of the swing arm 20 located outside the receiving cavity 101 is pulled by the cylinder and moves towards the bottom of the hopper 10. The portion of the swing arm 20 located in the receiving cavity 101 drives the cutter 30 to move towards the top of the hopper 10, bringing the cutter 30 closer to the ton bag 60 and cutting the ton bag 60. In some embodiments, the drive member 40 may also be located on the side of the swing arm 20 near the top of the hopper 10 along the height direction of the hopper 10. In some embodiments, the drive member 40 may also be slidably connected to the swing arm 20. One of the swing arm 20 and the drive member 40 is provided with a groove, and the other of the swing arm 20 and the drive member 40 is provided with a sliding abutment portion located in the groove. When the drive member 40 drives the swing arm 20 to rotate through the groove and the sliding abutment portion, the sliding abutment portion slides along the groove.

[0037] In some embodiments, the drive element 40 may also be configured as other drive structures, which are not specifically limited in this application. For example, the drive element 40 may also be configured as a linear motor, an electric actuator, etc.

[0038] In some embodiments, the bag breaking device 100 may not include the fixed base 41, and the drive component 40 may be directly connected to the hopper 10.

[0039] Please refer to the following: Figure 2 and Figure 4 , Figure 4This is a schematic diagram of the structure of the cutting tool 30 provided in some embodiments of this application. The cutting tool 30 includes one or more blades 31. Exemplarily, in this embodiment, the blade 31 may be provided as one. The blade 31 is arranged in a sheet shape. The planar extension direction of the blade 31 is parallel to the length extension direction of the swing arm 20, or is set at an acute angle to the length extension direction of the swing arm 20. When the swing arm 20 drives the blade 31 to move, the blade 31 moves along the rotation plane formed when the swing arm 20 rotates. By making the planar extension direction of the blade 31 parallel to the length extension direction of the swing arm 20 or at an acute angle to the length extension direction of the swing arm 20, when the blade 31 contacts the ton bag 60, the movement direction of the blade 31 can be parallel to or at an acute angle to the cutting direction of the blade 31 on the ton bag 60, thereby facilitating the blade 31 to smoothly cut the ton bag 60 and improving the cutting efficiency and cutting effect of the blade 31 on the ton bag 60.

[0040] In some embodiments, multiple blades 31 may be provided. These multiple blades 31 are interconnected, so that when they cut the ton bag 60, the blades 31 continuously cut the ton bag 60, and the ton bag 60 is radially cut outward from the intersection points of the multiple blades 31. The cuts on the ton bag 60 are continuous and interconnected, thus forming an opening in the ton bag 60, allowing material to flow out into the receiving cavity 101. The area enclosed by the multiple blades 31 is open, so that after the multiple blades 31 cut the ton bag 60, the cut portion of the ton bag 60 remains connected to the rest of the bag body, preventing the bag body from generating independent fragments after the multiple blades 31 cut the ton bag 60, preventing bag fragments from falling into the receiving cavity 101, and preventing contamination of the material.

[0041] Please refer to the following: Figure 2 and Figure 5 , Figure 5 This is a schematic diagram of the blade 31 provided in some embodiments of this application. The blade 31 includes a base 311 and a cutting portion 312. The cutting portion 312 is connected to the side of the base 311 away from the swing arm 20. The cutting portion 312 is used to cut the ton bag 60. Along the height direction Z of the hopper 10, the cutting portion 312 protrudes in an arc shape or a conical shape toward the top of the hopper 10. Exemplarily, in this embodiment, the cutting portion 312 is arranged in an arc shape protruding toward the top of the hopper 10 along the height direction Z of the hopper 10. The blade 31 has a generally semi-circular sheet structure. This facilitates continuous cutting of the ton bag 60 when the cutting portion 312 contacts the ton bag 60. In some embodiments, the cutting portion 312 is arranged in a conical shape protruding toward the top of the hopper 10 along the height direction X of the hopper 10, the blade 31 has a generally triangular sheet structure, and the overall blade 30 is pyramidal.

[0042] The cutting section 312 is provided with a serrated structure and / or a wavy structure. In some embodiments, the cutting section 312 is provided with a serrated structure to improve the cutting ability of the cutting section 312 on the ton bag 60 and increase the cutting speed of the blade 31. In some embodiments, the cutting section 312 is provided with a wavy structure to improve the cutting ability of the blade 31 on the ton bag 60 and increase the cutting speed. In some embodiments, the cutting section 312 is provided with both a serrated structure and a wavy structure, which may be arranged alternately or in other ways.

[0043] Please see Figure 3 The bag-breaking device 100 further includes a first seal 131 located within the receiving cavity 101. The first seal 131 is used to seal the connection between the swing arm 20 and the hopper 10, and to seal the clearance hole 102. Alternatively, the bag-breaking device 100 also includes a second seal 132 located outside the receiving cavity 101. The second seal 132 is used to seal the connection between the swing arm 20 and the hopper 10, and to seal the clearance hole 102. In some embodiments, the bag-breaking device 100 includes a first seal 131 located within the receiving cavity 101. The first seal 131 is used to seal the connection between the swing arm 20 and the hopper 10, and to seal the clearance hole 102. The first seal 131 is used to prevent material in the receiving cavity 101 from floating out of the receiving cavity 101 through the clearance hole 102, and to prevent material from accumulating at the connection between the swing arm 20 and the pin 12, and at the connection between the pin 12 and the hinge seat 11, thus preventing material blockage that would hinder the rotation of the swing arm 20, and improving the reliability and service life of the bag-breaking device 100. It is understandable that in the scheme of setting two cylinders to drive the cutting tool to lift and lower, the cylinder and the hopper need to be sealed in an area to prevent the material from falling onto the cylinder. In this embodiment, the cutting tool 30 is driven to move by the swing arm 20, and the first sealing element 131 only needs to seal the avoidance hole 102, thereby greatly reducing the required sealing area, improving the reliability and stability of the seal, and reducing the manufacturing cost of the bag breaking device 100.

[0044] In some embodiments, the bag-breaking device 100 includes a second seal 132 located outside the receiving cavity 101. The second seal 132 is used to seal the connection between the swing arm 20 and the hopper 10, and to seal the clearance hole 102. The second seal 132 can be sealed to the hinge seat 11 to achieve a sealed connection with the hopper 10. The second seal 132 is used to prevent material in the receiving cavity 101 from floating out of the receiving cavity 101 through the clearance hole 102, and to prevent external debris or material floating from the top opening of the hopper 10 from accumulating at the connection between the swing arm 20 and the pin 12, and at the connection between the pin 12 and the hinge seat 11, thus preventing material blockage that would hinder the rotation of the swing arm 20 and improving the reliability and service life of the bag-breaking device 100.

[0045] In some embodiments, the bag-breaking device 100 includes a first seal 131 and a second seal 132. The first seal 131 is located inside the receiving cavity 101. The second seal 132 is located outside the receiving cavity 101. The first seal 131 and the second seal 132 respectively seal the connection between the swing arm 20 and the hopper 10, and seal the clearance hole 102, so as to prevent the material in the receiving cavity 101 from floating out of the receiving cavity 101 through the clearance hole 102, and to prevent external debris or material in the hopper 10 from accumulating at the connection between the swing arm 20 and the pin 12, and at the connection between the pin 12 and the hinge seat 11, so as to prevent material blockage that would hinder the rotation of the swing arm 20, thereby improving the reliability and service life of the bag-breaking device 100.

[0046] In some embodiments, along the height direction Z of the hopper 10, the side of the swing arm 20 near the top of the hopper 10 is provided with an inclined surface or an arc surface, thereby reducing or preventing the accumulation of material flowing out of the ton bag 60 on the swing arm 20 and avoiding material waste.

[0047] Please see Figure 6 , Figure 6 This is a cross-sectional view of the swing arm 20 and the cutter 30 provided in some embodiments of this application. In some embodiments, the swing arm 20 is provided with a ventilation pipe 201 and a jet nozzle 202 connected to the ventilation pipe 201. One end of the ventilation pipe 201 is used to communicate with an external air supply device, and the other end of the ventilation pipe 201 is connected to the receiving cavity 101 through the jet nozzle 202. The external air supply device is used to pump compressed gas into the ventilation pipe 201. In this way, after the cutter 30 cuts open the ton bag 60, the jet nozzle 202 can blow air into the ton bag 60. The gas can improve the flowability of the material and maintain positive pressure inside the ton bag 60, thereby increasing the falling speed of the material and blowing off the material adhering to the inner wall of the ton bag 60, reducing or avoiding material residue inside the ton bag 60.

[0048] Multiple jet nozzles 202 can be configured. These nozzles 202 are arranged at intervals. The number of jet nozzles 202 can be set according to actual needs, and is not specifically limited in this application. For example, the number of jet nozzles 202 can be one, two, three, four, etc.

[0049] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A bag-breaking device (100), characterized in that, include: The hopper (10) is provided with a receiving cavity (101), and the side wall of the hopper (10) is provided with a clearance hole (102) communicating with the receiving cavity (101). The swing arm (20) passes through the clearance hole (102) and is hinged to the hopper (10); The cutting tool (30) is fixedly connected to the portion of the swing arm (20) located within the receiving cavity (101); A drive unit (40) is located outside the receiving cavity (101) and connected to the hopper (10). The drive unit (40) is connected to the part of the swing arm (20) located outside the receiving cavity (101) and is used to drive the swing arm (20) to rotate around the hinge point between the swing arm (20) and the hopper (10).

2. The bag-breaking device (100) according to claim 1, characterized in that, The swing arm (20) is provided with a ventilation pipe (201) and a jet nozzle (202) connected to the ventilation pipe (201). One end of the ventilation pipe (201) is used to connect to an external air supply device, and the other end of the ventilation pipe (201) is connected to the receiving cavity (101) through the jet nozzle (202).

3. The bag-breaking device (100) according to claim 1, characterized in that, The bag breaking device (100) further includes a hinge seat (11) and a pin (12). The hinge seat (11) is fixedly connected to the hopper (10). The hinge seat (11) is provided with a clearance space (103) communicating with the clearance hole (102). The pin (12) is connected to the hinge seat (11) and located in the clearance space (103). The swing arm (20) is connected to the pin (12) and can rotate relative to the hopper (10) around the central axis of the pin (12).

4. The bag-breaking device (100) according to claim 1, characterized in that, The cutting tool (30) includes one or more blades (31), which are cross-connected to each other, and the area enclosed by the multiple blades (31) is open.

5. The bag-breaking device (100) according to claim 4, characterized in that, The blade (31) includes a base (311) and a cutting part (312). The base (311) is fixedly connected to the swing arm (20). The cutting part (312) is connected to the side of the base (311) away from the swing arm (20). Along the height direction (Z) of the hopper (10), the cutting part (312) protrudes in an arc shape or a cone shape toward the top of the hopper (10).

6. The bag-breaking device (100) according to claim 5, characterized in that, The cutting section (312) is provided with a serrated structure and / or a wave structure.

7. The bag-breaking device (100) according to claim 1, characterized in that, The bag breaking device (100) further includes a first seal (131) located in the receiving cavity (101), the first seal (131) being used to seal the connection between the swing arm (20) and the hopper (10) and to seal the clearance hole (102), and / or, the bag breaking device (100) further includes a second seal (132) located outside the receiving cavity (101), the second seal (132) being used to seal the connection between the swing arm (20) and the hopper (10) and to seal the clearance hole (102).

8. The bag-breaking device (100) according to claim 1, characterized in that, Along the height direction (Z) of the hopper (10), the side of the swing arm (20) near the top of the hopper (10) is provided with an inclined surface or an arc surface.

9. The bag-breaking device (100) according to claim 1, characterized in that, The distance between the connection point of the cutting tool (30) and the swing arm (20) and the hinge point of the swing arm (20) and the hopper (10) is a first distance (D1), and the distance between the connection point of the driving member (40) and the swing arm (20) and the hinge point of the swing arm (20) and the hopper (10) is a second distance (D2). The first distance (D1) is greater than the second distance (D2).

10. An automatic unpacking device (1000), characterized in that, The automatic unpacking equipment (1000) includes a cabinet (50) and a bag-breaking device (100) as described in any one of claims 1-9, wherein the bag-breaking device (100) is installed in the cabinet (50).

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