Hooking assembly, hooking device and automatic unpacking equipment

Abstract

The invention discloses a hooking assembly, a hooking device and automatic unpacking equipment. The hooking assembly comprises a rack, a hook, a limiting piece and a first driving piece. The hook is installed on the machine frame and used for hooking a lifting lug of the ton bag. The limiting piece is rotatably installed on the machine frame. The first driving piece is in transmission connection with the limiting piece, and the first driving piece is used for driving the limiting piece to rotate so as to lock the lifting lug between the limiting piece and the hook or pull the lifting lug away from the hook. By the adoption of the hooking assembly, on one hand, woven bags are prevented from being damaged in the hooking process, the problem that materials are polluted by woven chippings is solved, and the quality of the materials is improved; on the other hand, the integration degree of mechanical parts is improved, the number and weight of the parts are reduced, the assembly difficulty is reduced, the structure is simple and compact, the occupied space is small, and the cost is low; and on the other hand, manual unpacking is not needed, and the working efficiency and the use safety of the automatic unpacking equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of ton bag unpacking, and in particular to a hook assembly, a hook device and automatic unpacking equipment. Background Art

[0002] Ton bags are a kind of flexible transport packaging container, so traditional unpacking equipment for ton bags requires manual participation in unpacking, which is labor-intensive, and the dust generated during the unpacking process can harm human health. The hook assembly of existing automatic unpacking equipment usually includes a frame, a hook and a driver. When the driver drives the hook to extend out of the frame, the hook can pierce and hang the ton bag. When the driver drives the hook to retract into the frame, the ton bag can be detached from the hook. However, in the existing automatic unpacking equipment, the hook piercing the ton bag will damage the woven bag and even cause woven debris to contaminate the material. In addition, the hook assembly has many mechanical parts, a complex structure, and occupies a large space. Summary of the invention

[0003] In view of this, one purpose of the present application is to provide a hook assembly, a hook device and an automatic unpacking equipment to solve the technical problems in the prior art that the hook of the automatic unpacking equipment pierces the ton bag and damages the woven bag, and even causes woven debris to contaminate the material, and the hook assembly has many mechanical parts, a complex structure, and occupies a large space.

[0004] In a first aspect, an embodiment of the present application provides a hook assembly, comprising a frame, a hook, a stopper, and a first driving member. The hook is mounted on the frame and is used to hook the lifting lug of a ton bag. The stopper is rotatably mounted on the frame. The first driving member is transmission-connected to the stopper, and the first driving member is used to drive the stopper to rotate, so as to lock the lifting lug between the stopper and the hook; or to pull the lifting lug away from the hook.

[0005] In combination with the first aspect, in certain implementations of the first aspect, the limiting member includes a rotating shaft and a limiting rod, the rotating shaft is rotatably mounted on the frame and is transmission-connected to the first driving member, the limiting rod is fixedly connected to the rotating shaft, the limiting rod is arranged close to the hook, and in a projection plane perpendicular to the central axis of the rotating shaft, the free end of the hook is located within the swing range of the limiting rod.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the hook includes a connecting rod and two hook bodies, the connecting rod is fixedly connected to the two hook bodies and forms a avoidance groove, and the limiting rod is rotatably inserted into the avoidance groove.

[0007] In combination with the first aspect, in some implementations of the first aspect, the limiting rod is configured as an arc rod or a straight rod.

[0008] In combination with the first aspect, in some implementations of the first aspect, the hook and the limiting rod are each provided in at least two numbers, and at least two limiting rods are arranged on the rotating shaft at intervals and are respectively arranged in one-to-one correspondence with the hook.

[0009] In combination with the first aspect, in some implementations of the first aspect, the hook further includes a guide sliding structure, and the guide sliding structure is configured as an arc surface provided at the free end of the hook; or, is configured as a rolling structure rollingly connected to the free end of the hook.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the hooking assembly further includes an in-place sensor, which is mounted on the frame and is used to generate an induction signal when it is detected that the ton bag reaches the hooking position.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the in-position sensor and the hook are arranged at intervals in the length direction of the hook assembly.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the hook includes an abutment surface and a connecting surface, the abutment surface and the connecting surface are arranged opposite to each other in the width direction of the hook assembly, the abutment surface is used to abut against the ton bag, and in a projection plane parallel to the width direction of the hook assembly, the in-place sensor is located between the abutment surface and the connecting surface, and the distance between the in-place sensor and the abutment surface is less than or equal to a preset threshold.

[0013] In combination with the first aspect, in certain implementations of the first aspect, in the height direction of the hook assembly, a height difference between the in-place sensor and the free end of the hook is within a preset height range.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the frame includes two side beams and a cross beam, the cross beam is connected between the two side beams, the hook is installed on the cross beam, and the limit member is rotatably installed on the side beam.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the frame also includes a protective cover, which is fixedly connected to the crossbeam and / or the two side beams and forms an installation cavity with the crossbeam and the two side beams, the hook and the limit member are arranged in the installation cavity, the protective cover includes a cover body and a protective plate fixedly connected to the cover body, the protective plate covers the protective plate of the crossbeam, and the top wall of the protective plate is configured as an inclined surface.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the hook assembly further includes a flapping member, the flapping member includes a second driving member and a flapping rod, the second driving member is mounted on the frame and is transmission-connected to the flapping rod.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the frame also includes a support plate, which is connected between the bottoms of the two side beams, the second driving member is installed on a side of the support plate close to the limit member and is arranged to avoid the limit member, and the beating rod is arranged on a side of the support plate facing away from the limit member.

[0018] In combination with the first aspect, in some implementations of the first aspect, the hook assembly further includes a weight sensor, and the weight sensor is disposed between the frame and the hook.

[0019] In combination with the first aspect, in certain implementations of the first aspect, a slide rail is provided on the frame, a guide structure slidably matched with the slide rail is provided on the hook, and an extension direction of the slide rail is parallel to a height direction of the hook assembly.

[0020] In the second aspect, an embodiment of the present application provides a hooking device, comprising a mounting seat, a translational drive member and two hooking assemblies as described above, wherein the translational drive member and the two hooking assemblies are installed on the mounting seat, and the translational drive member is used to drive the two hooking assemblies to approach or move away from each other in the width direction of the hooking assemblies.

[0021] In a third aspect, an embodiment of the present application provides an automatic unpacking device, comprising a cabinet and a hooking device as described above, wherein the hooking device can be movably installed in the cabinet.

[0022] The hook assembly, hook device and automatic unpacking equipment provided by the present application, on the one hand, use hooks to hook the lifting ears of ton bags, thereby avoiding the problem that the existing hooks use puncture method to hook the ton bags and cause damage to the woven bags, and even cause woven debris to contaminate the materials, thereby improving the quality of the materials; on the other hand, the automatic anti-unhooking and automatic unhooking functions of the lifting ears of the ton bags are realized based on the rotation of the limit parts, and the hooks do not need to be provided with additional driving structures and transmission structures, thereby improving the integration of mechanical parts, reducing the number and weight of parts, reducing the difficulty of assembly, and having a simple and compact structure, occupying a small space and low cost; on the other hand, there is no need for manual participation in unpacking, thereby improving the working efficiency and safety of the automatic unpacking equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in 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 only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a cross-sectional view of the automatic unpacking equipment provided in an embodiment of the present application.

[0025] Figure 2 It is a schematic diagram of the structure of the ton bag provided in the embodiment of the present application.

[0026] Figure 3 yes Figure 1 A schematic diagram of the structure of the hook device of the automatic unpacking equipment.

[0027] Figure 4 yes Figure 3 A schematic structural diagram of a hook assembly of a hook device from a first perspective.

[0028] Figure 5 yes Figure 3 A schematic structural diagram of a hooking assembly of a hooking device from a second perspective.

[0029] Figure 6 yes Figure 3 A schematic structural diagram of the hook assembly of the hook device from a third perspective.

[0030] Description of main reference numerals: ton bag-1a; bag body-11a; inner bag-111a; outer bag-112a; feeding port-1120a; lifting ear-12a; fixing part-121a; hooking part-122a; automatic unpacking equipment-100; cabinet-1; feeding bin-110; bag breaking bin-130; bag collecting bin-150; hooking device-2; mounting seat-210; translation driving member-220; hooking assembly-230; sealing cover-250; frame-21; mounting cavity 2101; side beam-211; cross beam-212; connecting plate-213; slide rail-214; mounting frame-215; protective cover-216; cover body-2161; protective plate-2162; support plate-217; hook-23; avoidance groove-2301; abutment surface-23 02; connecting surface-2303; connecting rod-231; hook body-232; guide structure-234; matching structure-235; limit member-24; rotating shaft-241; limit rod-242; arc structure-2421; fixing sleeve-243; bearing-245; first driving member-25; in-position sensor-26; pushing structure-265; pushing driving member-2651; pushing rod-2652; roller-2653; beating member-27; second driving member-271; beating rod-272; weight sensor-28; shaping device-3; lifting device-41; moving device-42; conveying device-43; air shower device-45; dust removal device-47; bag breaking device-5; bag collecting device-9; length direction-X; width direction-Y; height direction-Z.

[0031] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] It is understood that the terms in the specification and claims of the present application and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit the present application. The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. Unless the context clearly states otherwise, the singular forms "one" and "the" are also intended to include plural forms. The term "including" and any of their variations are intended to cover non-exclusive inclusions. In addition, the present application can be implemented in a variety of different forms and is not limited to the embodiments described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present application, in which the words indicating the orientation such as upper, lower, left, and right are only for the position of the structure shown in the corresponding drawings. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be a connection between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The following description is a preferred embodiment of the present invention, but the above description is for the purpose of explaining the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0035] See also Figure 1 , Figure 1 : is a cross-sectional view of the automatic unpacking device 100 provided in the embodiment of the present application. The automatic unpacking device 100 includes a cabinet 1 and a hook device 2. The hook device 2 can be movably installed in the cabinet 1 and is used to hook or release the ton bag 1a. Therefore, the automatic unpacking device 100 provided in the embodiment of the present application, based on the hook device 2 being movably installed in the cabinet 1, realizes the movement of the ton bag 1a in different functional areas in the cabinet 1, thereby improving the working efficiency of the automatic unpacking device 100.

[0036] In some embodiments, the cabinet 1 is provided with a feed bin 110 and a bag breaking bin 130. The feed bin 110 and the bag breaking bin 130 are independently provided, thereby realizing a modular setting of the automatic unpacking device 100, thereby flexibly combining various modules according to different needs of customers, meeting different needs of different customers, improving product flexibility, and modular design simplifies the production process, making production more efficient, and facilitating assembly, repair and maintenance.

[0037] In some embodiments, the automatic unpacking device 100 may further include a shaping device 3. The shaping device 3 is disposed in the feed bin 110 and is used to shape the shape of the ton bag 1a, so that the shape of the ton bag 1a can be regular, and the problem that the ton bag 1a with irregular shapes such as tilted and conical shapes affects the hooking success rate of the hooking device 2 and causes the center of gravity of the ton bag 1a to be unstable and damage the ton bag 1a or other mechanical components is avoided, thereby improving the hooking success rate of the hooking device 2 and improving the safety and reliability of the use of the automatic unpacking device 100.

[0038] The automatic unpacking equipment 100 may also include but is not limited to a lifting device 41, a moving device 42 and a bag breaking device 5. The lifting device 41 is arranged in the feed bin 110 and is arranged independently of the hooking device 2. The lifting device 41 is used to drive the ton bag 1a to approach or move away from the hooking device 2 along the height direction Z of the automatic unpacking equipment 100. Of course, in some other embodiments, the lifting device 41 is connected to the hooking device 2, and the lifting device 41 is used to drive the hooking device 2 to approach or move away from the ton bag 1a along the height direction Z of the automatic unpacking equipment 100. The bag breaking device 5 is arranged in the bag breaking bin 130 and is used to automatically unpack and feed the ton bag 1a. The moving device 42 is arranged at the top of the cabinet 1 in the height direction Z of the automatic unpacking equipment 100 and is connected to the hooking device 2. The moving device 42 is used to drive the hooking device 2 to move in the length direction X of the automatic unpacking equipment 100. Specifically, the moving device 42 is used to drive the hooking device 2 to move between the feed bin 110 and the bag breaking bin 130.

[0039] In some embodiments, the automatic unpacking device 100 may further include a conveying device 43. The conveying device 43 is disposed in the feed bin 110 and is located below the hooking device 2. The conveying device 43 is used to convey the ton bag 1a to the lifting device 41 or the hooking device 2.

[0040] In some embodiments, the automatic unpacking device 100 may further include an air shower device 45. The air shower device 45 is disposed in the feed bin 110 and is used to remove dust and microorganisms adhering to the surface of the ton bag 1a, ensuring that the ton bag 1a is unpacked in a clean environment, thereby reducing the risk of material contamination.

[0041] In some embodiments, the cabinet 1 is further provided with a bag collecting bin 150. The bag collecting bin 150 is arranged between the feed bin 110 and the bag breaking bin 130, and is independently arranged with the feed bin 110 and the bag breaking bin 130. Of course, in some embodiments, the bag collecting bin 150 is integrated with the feed bin 110, that is, the bag collecting bin 150 and the feed bin 110 share a bin body. The automatic unpacking equipment 100 may also include a bag collecting device 9. The bag collecting device 9 is arranged in the bag collecting bin 150. The bag collecting device 9 is used to recycle the ton bags 1a that have completed the unloading operation. In the embodiment of the present application, the bag breaking device 5 breaks the ton bags 1a, and the materials are unloaded from the ton bags 1a, and then the hooking device 2 moves the ton bags 1a that have completed the unloading operation to the bag collecting device 9, and the bag collecting device 9 recycles the ton bags 1a, which is conducive to reducing costs.

[0042] In some embodiments, the automatic unpacking device 100 may further include a dust removal device 47. The dust removal device 47 is arranged on the outer side wall of the cabinet 1, so as to facilitate the assembly, maintenance, cleaning and other operations of the dust removal device 47. The dust removal device 47 is connected to at least one of the feed bin 110, the bag collection bin 150 and the bag breaking bin 130, so that the dust removal device 47 can absorb the dust in at least one of the feed bin 110, the bag collection bin 150 and the bag breaking bin 130. In the embodiment of the present application, the dust removal device 47 is connected to the feed bin 110, and can absorb the dust separated from the top, the side and the bottom of the ton bag 1a. The dust removal device 47 is connected to the bag collection bin 150, and can absorb the dust generated by squeezing the ton bag 1a, and reduce the dust in the bag collection bin 150. The dust removal device 47 is connected to the bag breaking bin 130, and can absorb the dust generated by the unloading of the ton bag 1a, and reduce the dust in the bag breaking bin 130.

[0043] It should be noted that Figure 1 The purpose is only to schematically describe the arrangement of the cabinet 1 and the hook device 2, and it is not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 The structure of the automatic unpacking device 100 is only shown in the embodiment of the present application, and does not constitute a specific limitation on the automatic unpacking device 100. In other embodiments of the present application, the automatic unpacking device 100 may include Figure 1More or fewer components, or a combination of certain components, or different components, such as the automatic unpacking equipment 100 may also include but are not limited to an identification device, a gas storage device, an injection device, etc. For example, in an embodiment of the present application, the identification device is arranged on the outside of the cabinet 1. The identification device is used to identify the position of the ton bag 1a, so that the lifting ear 12a of the ton bag 1a is aligned with the hook device 2, thereby improving the success rate of the hook device 2 hooking the lifting ear 12a. The gas storage device is used to spray compressed gas to different functional areas of the cabinet 1 through the injection device. In an embodiment of the present application, the gas storage device and the injection device cooperate to realize the spraying of compressed gas to different functional areas of the cabinet 1, which can play a role in dust removal and decontamination. Exemplarily, the compressed gas can be air. The gas storage device can also be connected to the air shower device 45 to spray air to the feed bin 110 through the air shower device 45.

[0044] It should be noted that the ton bag 1a is a large-capacity, strong load-bearing freight packaging bag used for packaging and transportation, and is usually used for the transportation of solid goods, such as granular materials, powdered materials and block materials. The ton bag 1a is used to load materials, such as but not limited to battery materials, food materials, pharmaceutical materials, fertilizer materials, building materials, etc., and the materials loaded by the ton bag 1a are not limited here. For example, in an embodiment of the present application, the ton bag 1a is used to load battery materials. Battery materials include but are not limited to positive electrode materials, negative electrode materials, conductive agents or dispersants, etc.; alternatively, various materials are mixed to form a battery mixture.

[0045] Please also read Figure 1 and Figure 2 , Figure 2 : is a schematic diagram of the structure of a ton bag 1a provided in an embodiment of the present application. The ton bag 1a includes a bag body 11a and a lifting lug 12a. In this embodiment, the lifting lug 12a can be arranged on the outer side wall of the bag body 11a. Of course, in some embodiments, the lifting lug 12a can also be arranged on the top or other positions of the four corners of the bag body 11a. The number of the lifting lug 12a can be set to one or more. Exemplarily, in this embodiment, two lifting lugs 12a are arranged on the outer side wall of the bag body 11a. The two lifting lugs 12a are symmetrically arranged relative to the central axis of the ton bag 1a, so as to improve the force uniformity of the ton bag 1a after being hooked by the hooking device 2.

[0046] The bag body 11a includes an inner bag 111a and an outer bag 112a. The inner bag 111a is located in the inner cavity of the outer bag 112a, and the inner bag 111a is used to contain materials and is in direct contact with the materials. The outer bag 112a is used to bear the weight of the materials and to connect with other mechanisms during the transportation of the materials. Exemplarily, in one embodiment, the outer bag 112a is made of polyester fiber, and the inner bag 111a is made of aluminum-plastic composite material. Polyester fiber material has the advantages of high strength and good wear resistance, and the outer bag 112a is made of polyester fiber material, which is conducive to bearing the load. The inner bag 111a is made of aluminum-plastic composite material, which is conducive to meeting the requirements of moisture-proof, UV-proof and pollution-proof of the materials.

[0047] It is understandable that if the unloading operation is performed by directly breaking the outer bag 112a, it is difficult to avoid that the foreign matter generated when the bag is broken is mixed into the material, and the foreign matter is generally woven shreds or debris, which is difficult to separate from the material, and may affect the normal use of the material in subsequent processes. To avoid the above problems, in the embodiment of the present application, a discharge port 1120a is provided at the bottom of the outer bag 112a, and the inner bag 111a is at least partially visible at the discharge port 1120a. Thus, during the bag breaking process, the bag breaking device 5 can directly break the inner bag 111a through the discharge port 1120a to avoid damage to the outer bag 112a. Since the inner bag 111a is made of an aluminum-plastic composite material, it is not easy to generate debris when the inner bag 111a is broken, which is conducive to preventing the woven shreds or debris from falling with the material.

[0048] In some embodiments, the outer bag 112a is provided with a cover cloth piece (not shown) at the discharge port 1120a. The cover cloth piece is used to close or open the discharge port 1120a. Therefore, on the one hand, the cover cloth piece can protect the inner bag 111a, prevent the inner bag 111a from being squeezed by materials or scratched by external obstacles during transportation, and prevent the inner bag 111a from being contaminated; on the other hand, the cover cloth piece can also enhance the load-bearing capacity of the outer bag 112a when closing the discharge port 1120a. The automatic unpacking equipment 100 also includes a cover cloth separation device. During the bag breaking process, the cover cloth separation device drives the cover cloth to separate from the outer bag 112a to open the discharge port 1120a of the ton bag 1a.

[0049] In some embodiments, a label (not shown) is provided on the outer bag 112a. The label includes but is not limited to at least one of a QR code, a barcode, a number, a text, and a symbol. Exemplarily, in one embodiment, the label is used to identify material information. The material information includes but is not limited to the material name, weight, production date, etc. The label can identify the information carried by the label through an identification device. The identification method is simple and reliable, with low cost, and the label itself can also be used to identify other information to achieve label reuse.

[0050] The lifting lug 12a includes a plurality of fixing portions 121a and at least one hooking portion 122a. Each hooking portion 122a is connected between two adjacent fixing portions 121a, and the extension direction of the fixing portion 121a intersects with the extension direction of the hooking portion 122a. When the hooking portion 122a is provided in plurality, the two fixing portions 121a located between two adjacent hooking portions 122a are stacked. Thus, the fixing portion 121a can enhance the connection strength between the lifting lug 12a and the bag body 11a, and improve the reliability and safety of the automatic unpacking equipment 100. Of course, in some embodiments, the hooking portion 122a can also be provided as one. Exemplarily, in the present embodiment, each lifting lug 12a is configured as an M-shaped structure, so that the structure is simple, easy to process and manufacture, and the force is more uniform after the ton bag 1a is hooked by the hooking device 2, so that the bag breaking device 5 can be more accurate to the ton bag 1a.

[0051] It can be understood that the longer the length of the hooking portion 122a is, the easier it is for the hooking portion 122a to sag and shift, thereby reducing the success rate of the hooking device 2 hooking the ear 12a. In the embodiment of the present application, the length of the hooking portion 122a is substantially equal to the distance between two adjacent fixing portions 121a, so that the hooking portion 122a is close to the bag body 11a, thereby improving the success rate of the hooking device 2 hooking the ear 12a. Of course, in some embodiments, the length of the hooking portion 122a may also be greater than the distance between two adjacent fixing portions 121a, which is not specifically limited in the embodiment of the present application.

[0052] Please also read Figure 1 and Figure 3 , Figure 3 yes Figure 1 The structural diagram of the hooking device 2 of the automatic unpacking device 100 in FIG. The hooking device 2 includes a mounting seat 210, a translation driving member 220 and two hooking assemblies 230. The translation driving member 220 and the two hooking assemblies 230 are mounted on the mounting seat 210, and the translation driving member 220 is used to drive the two hooking assemblies 230 to move closer to or away from each other in the width direction Y of the hooking assemblies 230. As a result, it is convenient for the two hooking assemblies 230 to respectively hook the two lifting ears 12a of the ton bag 1a, thereby improving the success rate of the hooking device 2 hooking the ton bag 1a and preventing the hooking device 2 from damaging the ton bag 1a.

[0053] In some embodiments, the hook device 2 further includes a sealing cover 250. The translation drive member 220 is disposed inside the sealing cover 250. Thus, the sealing cover 250 can seal the translation drive member 220 disposed on the mounting seat 210. On the one hand, the dust generated during the bag breaking process of the ton bag 1a cannot enter the moving hinge of the translation drive member 220, thereby enhancing the movement reliability and connection stability of the translation drive member 220 relative to the mounting seat 210, avoiding the movement wear problem of the moving parts of the mechanical structure due to the entry of material dust, and extending the service life; on the other hand, the metal powder and debris generated by the movement wear of the translation drive member 220 and the mounting seat 210 cannot enter the material, thereby avoiding material contamination and meeting the requirements of product quality and environmental protection.

[0054] For the accuracy of description, please refer to the directions in this article. Figure 1 and Figure 3 For reference, the “length direction X” refers to the direction in which the moving device 42 drives the ton bag 1a to move relative to the cabinet 1, that is, Figure 1 The term "width direction Y" refers to the opening and closing direction of the two hooking components in the hooking device 2, that is, Figure 3 The term "height direction Z" refers to the direction in which the lifting device 41 drives the ton bag 1a to rise and fall, that is, Figure 1 The up and down directions (where the positive direction of the Z axis is upward), wherein the length direction X, the width direction Y and the height direction Z together constitute the three orthogonal directions of the automatic unpacking device 100. The length direction X, the width direction Y and the height direction Z of the automatic unpacking device 100 can be customized according to the specific structure of the product and the perspective of the drawings, and this application does not make specific restrictions. For the convenience of description, the upper, lower, left, right, front, and rear directions in this application are relative positions and do not constitute a limitation to the implementation. Among them, the length direction X of the hook assembly 230 is parallel to the length direction X of the hook device 2 and the length direction X of the automatic unpacking device 100, the width direction Y of the hook assembly 230 is parallel to the width direction Y of the hook device 2 and the width direction Y of the automatic unpacking device 100, and the height direction Z of the hook assembly 230 is parallel to the height direction Z of the hook device 2 and the height direction Z of the automatic unpacking device 100.

[0055] Please also read Figure 3 and Figure 4 , Figure 4 yes Figure 3Schematic diagram of the structure of the hook assembly 230 of the hook device 2 from a first perspective. The hook assembly 230 includes a frame 21, a hook 23, a stopper 24 and a first drive member 25. The hook 23 is mounted on the frame 21 and is used to hook the lifting lug 12a of the ton bag 1a. The stopper 24 is rotatably mounted on the frame 21. The first drive member 25 is transmission-connected to the stopper 24, and the first drive member 25 is used to drive the stopper 24 to rotate, so as to lock the lifting lug 12a between the stopper 24 and the hook 23; or, to pull the lifting lug 12a away from the hook 23.

[0056] The hook assembly 230 provided in the embodiment of the present application, on the one hand, adopts the hook 23 to hook the ear 12a of the ton bag 1a, thereby avoiding the problem that the existing hook 23 uses the method of piercing the ton bag 1a to hook the ton bag 1a and cause damage to the woven bag, and even cause the woven debris to contaminate the material, thereby improving the quality of the material; on the other hand, based on the rotation of the limit member 24, the automatic anti-unhooking and automatic unhooking functions of the ear 12a of the ton bag 1a are realized, and the hook 23 does not need to be provided with an additional driving structure and transmission structure, thereby improving the integration of mechanical parts, reducing the number and weight of parts, reducing the difficulty of assembly, and having a simple and compact structure, occupying a small space, and low cost; on the other hand, there is no need for manual participation in unpacking, thereby improving the working efficiency and use safety of the automatic unpacking equipment 100.

[0057] It can be understood that after the hook 23 hooks the lifting lug 12a of the ton bag 1a, the first driving member 25 drives the limiting member 24 to rotate in the first direction, so that the lifting lug 12a is locked and maintained between the hook 23 and the limiting member 24. Specifically, the limiting member 24 and the hook 23 enclose a limiting space to limit the lifting lug 12a, thereby preventing the lifting lug 12a from being unhooked. After the ton bag 1a is unloaded, the first driving member 25 drives the limiting member 24 to rotate in the second direction, so that the limiting member 24 pulls the lifting lug 12a away from the hook 23, thereby realizing the unhooking of the ton bag 1a, which is convenient for the subsequent recovery operation of the ton bag 1a. Among them, the first direction is opposite to the second direction.

[0058] In this embodiment, the limiting member 24 includes a rotating shaft 241 and a limiting rod 242. The rotating shaft 241 is rotatably mounted on the frame 21 and is in transmission connection with the first driving member 25. The limiting rod 242 is fixedly connected to the rotating shaft 241. The limiting rod 242 is arranged close to the hook 23. In the projection plane perpendicular to the central axis of the rotating shaft 241, the free end of the hook 23 is located within the swing range of the limiting rod 242. Therefore, on the one hand, based on the driving member driving the rotating shaft 241 to rotate to drive the limiting rod 242 to swing, the space occupied by the limiting member 24 on the frame 21 is reduced, and the compactness of the overall structure of the hook assembly 230 is improved; on the other hand, in the projection plane perpendicular to the central axis of the rotating shaft 241, the free end of the hook 23 is located within the swing range of the limiting rod 242, thereby improving the success rate of the limiting rod 242 locking and pulling off the ear 12a. Of course, in some embodiments, the rotating shaft 241 may be omitted, that is, the limiting member 24 includes the limiting rod 242 , and the first driving member 25 is directly used to drive the first driving member 25 to rotate.

[0059] Please also read Figure 4 and Figure 5 , Figure 5 yes Figure 3 Schematic diagram of the structure of the hook assembly 230 of the hook device 2 from a second perspective. The limit rod 242 and the rotating shaft 241 are independently arranged and fixedly connected. As a result, it is convenient to process and manufacture the limit member 24, and to maintain and replace the limit rod 242 and the rotating shaft 241. Specifically, the limit member 24 also includes a fixing sleeve 243, and the limit rod 242 is fixedly connected to the rotating shaft 241 through the fixing sleeve 243. In some embodiments, the limit rod 242 can also be integrally formed with the rotating shaft 241, so as to improve the assembly efficiency and the connection strength between the limit rod 242 and the rotating shaft 241.

[0060] Both ends of the rotating shaft 241 are rotatably connected to the frame 21, thereby improving the stability of the rotation of the limiting member 24 relative to the frame 21. Of course, in some embodiments, one end of the rotating shaft 241 is rotatably connected to the frame 21, and the other end of the rotating shaft 241 is connected to the limiting rod 242; or, the rotating shaft 241 and the frame 21 are independently provided, and are directly connected to the first driving member 25.

[0061] In some embodiments, the stopper 24 further includes a bearing 245. The bearing 245 is fixedly mounted on the frame 21, and the rotating shaft 241 is inserted into the bearing 245. Therefore, on the one hand, the provision of the bearing 245 can improve the smoothness and stability of the rotation of the rotating shaft 241 relative to the frame 21; on the other hand, the bearing 245 can support the rotating shaft 241, reduce the friction between the bearing 245 and the frame 21, reduce friction and wear, thereby extending the life of the mechanical equipment and improving its operating efficiency.

[0062] One first driving member 25 is provided and connected to one end of the rotating shaft 241. Thus, the number of components is reduced, the cost is saved, and the overall structure of the hook assembly 230 is made more compact. In some embodiments, the first driving member 25 can also be provided in plurality, for example, the first driving member 25 is provided in two, and the two first driving members 25 are respectively connected to the two ends of the rotating shaft 241. For example, one of the first driving members 25 is used to drive the rotating shaft 241 to rotate forward, and the other first driving member 25 is used to drive the rotating shaft 241 to rotate reversely; or, the two first driving members 25 work alternately. Thus, on the one hand, it is avoided that one of the first driving members 25 is abnormal, which causes the limit member 24 and the hook 23 to be unable to lock and unlock the sling of the ton bag 1a; on the other hand, the two first driving members 25 work alternately, which can reduce the operating time of a single first driving member 25, thereby reducing the heat and loss of the first driving member 25, and extending the service life of the first driving member 25.

[0063] In this embodiment, the first driving member 25 is arranged on the outer side wall of the frame 21, so as to facilitate the assembly, maintenance and replacement of the first driving member 25; on the other hand, the first driving member 25 is prevented from interfering with the hook 23 or the stopper 24 or other components, and the overall layout of the hook assembly 230 is optimized to achieve a miniaturized and lightweight design. Of course, the first driving member 25 can also be arranged inside the frame 21 according to actual conditions.

[0064] The limiting rod 242 is configured as an arc rod or a straight rod. Therefore, on the one hand, under the same force, the arc rod is more easily deformed than the straight rod, so that when the limiting member 24 rotates, the arc rod can reduce the friction between the limiting rod 242 and the ton bag 1a and the rack 21, avoiding the problem of the limiting rod 242 scratching the ton bag 1a or the rack 21 and generating debris; on the other hand, the straight rod is convenient for processing and manufacturing, and when the ton bag 1a is in a locked state, since the straight rod is less likely to deform than the arc rod, the ear 12a of the ton bag 1a can be more firmly locked between the limiting member 24 and the hook 23. Exemplarily, in this embodiment, the limiting rod 242 is configured as an arc rod.

[0065] In some embodiments, a circular arc structure 2421 is provided at the free end of the limiting rod 242 facing away from the rotating shaft 241, thereby avoiding friction between the limiting rod 242 and the ton bag 1a and the frame 21, and avoiding the problem of the limiting rod 242 scratching the ton bag 1a or the frame 21 to generate debris or damage the ton bag 1a.

[0066] In this embodiment, the hook 23 includes a connecting rod 231 and two hook bodies 232. The connecting rod 231 is fixedly connected to the two hook bodies 232 to form an avoidance groove 2301. The limiting rod 242 is rotatably inserted into the avoidance groove 2301. Therefore, on the one hand, based on the limiting rod 242 being rotatably inserted into the groove, the two hook bodies 232 can provide a limiting and guiding function for the swing of the limiting rod 242, thereby improving the success rate of the limiting rod 242 locking and pulling away the ear 12a; on the other hand, the two hook bodies 232 are connected into an integrated structure through the connecting rod 231, which is convenient for assembly, and improves the overall structural strength of the hook 23, prolongs the service life of the hook 23, and improves the success rate of the hook 23 hooking the ear 12a.

[0067] Of course, in some embodiments, the hook 23 may also include one hook body 232 or multiple hook bodies 232. When the hook body 232 is set to one, the hook 23 abuts against the limiting rod 242 to avoid the problem of the ear 12a and the gap between the limiting rod 242 and the hook 23 being unhooked. When the hook body 232 is set to multiple, the limiting rod 242 can be spaced apart from the hook body 232, thereby reducing the friction between the limiting rod 242 and the hook 23, and improving the smoothness and reliability of the limiting rod 242 swinging in the avoidance groove 2301. Two adjacent hook bodies 232 are fixedly connected to the connecting rod 231 and form an avoidance groove 2301. Each avoidance groove 2301 is provided with a limiting member 24, thereby improving the locking force and stripping force of the limiting member 24 on the ear 12a.

[0068] At least two hooks 23 and limiting rods 242 are provided. At least two limiting rods 242 are provided at intervals on the rotating shaft 241, and are provided one by one with the hooks 23. Thus, on the one hand, based on the provision of multiple hooks 23, the multiple hooks 23 can disperse the weight of the ton bag 1a, and the pressure on each hook 23 can be reduced, thereby extending the service life of the hook 23 and reducing the risk of the hook 23 breaking. In addition, the multiple hooks 23 can provide multiple support points, thereby improving the stability of the ton bag 1a and the accuracy of subsequent puncture; on the other hand, each hook 23 cooperates with the corresponding limiting rod 242, thereby realizing the function of automatic locking and automatic unhooking of the ear 12a of the ton bag 1a, thereby improving the working efficiency and use safety of the automatic unpacking equipment 100.

[0069] Of course, in some embodiments, the number of limit rods 242 can be greater than the number of hooks 23. Multiple limit rods 242 are arranged on the rotating shaft 241 at intervals. For example, one hook 23 can correspond to two or three limit rods 242, thereby improving the locking force and peeling force of the limit member 24 on the lifting ear 12a. It should be noted that the number of hooks 23 and limit rods 242 can be set according to factors such as the load-bearing capacity of the hook 23 and the size of the ton bag 1a, and the embodiment of the present application does not make specific limitations.

[0070] The hook 23 further includes a guide structure 234, which is configured as an arc surface provided at the free end of the hook 23; or configured as a rolling structure rollingly connected to the free end of the hook 23. Thus, the friction between the hook 23 and the ton bag 1a is reduced, and the problem of the hook 23 scratching the ton bag 1a and generating debris when hooking the lug 12a is avoided. For example, in this embodiment, the free ends of the two hook bodies 232 of the hook 23 are configured as arc surfaces.

[0071] In some embodiments, the hook assembly 230 further includes an in-position sensor 26, which is mounted on the frame 21 and is used to generate a sensing signal when it is detected that the ton bag 1a reaches the hook position. Therefore, when it is detected that the ton bag 1a reaches the hook position, it indicates that the hook 23 is in contact with the ton bag 1a, thereby improving the success rate of the hook 23 hooking the lug 12a of the ton bag 1a, and improving the safety of the automatic unpacking device 100. The in-position sensor 26 can be, but is not limited to, a photoelectric encoder, a magnetic encoder, a laser distance sensor, an ultrasonic sensor, etc.

[0072] The in-position sensor 26 and the hook 23 are arranged at intervals in the length direction X of the hook assembly 230. Therefore, on the one hand, the problem of damage caused by the in-position sensor 26 being arranged on the hook 23 is avoided, and the service life of the in-position sensor 26 is extended; on the other hand, the in-position sensor 26 and the hook 23 are independently arranged on the frame 21, so that the assembly, maintenance and replacement of the in-position sensor 26 and the hook 23 are facilitated.

[0073] In this embodiment, a mounting frame 215 is provided on the frame 21, and the in-place sensor 26 is mounted on the mounting frame 215. The mounting frame 215 is detachably connected to the frame 21. In some embodiments, the mounting frame 215 is pivotally connected to the frame 21, so that when the ton bag 1a presses against the in-place sensor 26, the mounting frame 215 rotates relative to the frame 21, thereby reducing the risk of the ton bag 1a crushing the in-place sensor 26 during the process of the hook 23 hooking the ton bag 1a, and extending the service life of the in-place sensor 26. The mounting frame 215 can be configured as a triangular frame, thereby improving the structural degree and stability of the mounting frame 215, reducing weight, and saving costs. Of course, in some embodiments, the mounting frame 215 can also be fixedly connected to the frame 21, and the mounting piece can also be configured in other shapes, such as L-shaped, square, etc.

[0074] Please also read Figure 4 and Figure 6 , Figure 6 yes Figure 3 Schematic diagram of the structure of the hook assembly 230 of the hook device 2 from a third perspective. In some embodiments, the hook assembly 230 further includes a push-up structure 265. The push-up structure 265 includes a push-up drive 2651 and a push rod 2652. The push-up drive 2651 is mounted on the frame 21. One end of the push rod 2652 is transmission-connected to the push rod 2652, and the other end of the push rod 2652 abuts against the mounting frame 215. The push-up drive 2651 is used to drive the push rod 2652 to push the mounting frame 215, so that the in-place sensor 26 is close to or away from the ton bag 1a. As a result, the in-place sensor 26 can be flexibly installed on the frame 21, thereby improving the detection accuracy of the in-place sensor 26. In some embodiments, a roller 2653 is provided at one end of the push rod 2652 facing away from the push-up drive 2651, thereby reducing the friction between the push rod 2652 and the mounting frame 215 and improving the push-up effect.

[0075] The hook 23 includes an abutment surface 2302 and a connection surface 2303. The abutment surface 2302 and the connection surface 2303 are arranged opposite to each other in the width direction Y of the hook assembly 230, and the abutment surface 2302 is used to abut against the ton bag 1a. In the projection plane parallel to the width direction Y of the hook assembly 230, the in-place sensor 26 is located between the abutment surface 2302 and the connection surface 2303, and the distance between the in-place sensor 26 and the abutment surface 2302 is less than or equal to the preset threshold. Thus, when the distance between the in-place sensor 26 and the abutment surface 2302 is close to zero, in the projection plane parallel to the width direction Y of the hook assembly 230, it indicates that the hook 23 and the in-place sensor 26 are substantially flush, thereby improving the detection accuracy of the in-place sensor 26; when the distance between the in-place sensor 26 and the abutment surface 2302 is close to 0, it indicates that in the projection plane parallel to the width direction Y of the hook assembly 230, it indicates that the in-place sensor 26 is retracted relative to the hook 23 by one end, thereby avoiding the problem of the hook 23 being squeezed by the back bag 1a when hooking the ton bag 1a and causing damage, extending the service life of the in-place sensor 26, and ensuring the detection accuracy of the in-place sensor 26. The preset threshold value may be, but is not limited to, 0.5 cm, 1 cm, 2 cm, etc., and is not specifically limited in the embodiments of the present application.

[0076] In some embodiments, in the height direction Z of the hook assembly 230, the height difference between the in-place sensor 26 and the free end of the hook 23 is within a preset height range. Therefore, it can be understood that the smaller the height between the in-place detector and the free end of the hook 23 in the height direction Z, the higher the detection accuracy of the in-place detector, thereby improving the success rate of the hook 23 hooking the hanging ear 12a, and improving the working efficiency and use safety of the hook assembly 230.

[0077] Exemplarily, in this embodiment, the frame 21 includes two side beams 211 and a crossbeam 212. The crossbeam 212 is connected between the two side beams 211. The hook 23 is mounted on the crossbeam 212, and the stopper 24 is rotatably mounted on the side beam 211. Thus, the stopper 24 is prevented from interfering with the hook 23, and the overall structural compactness of the hook assembly 230 is improved. The crossbeam 212 is fixedly connected to the two side beams 211. The crossbeam 212 and the two side beams 211 are detachably connected or integrally formed. The arrangement of the crossbeam 212 and the side beam 211 can improve the structural strength of the frame 21, and can absorb and disperse the force of the ton bag 1a, thereby improving the safety of the automatic unpacking device 100. Specifically, the hook 23 and the in-place sensor 26 are suspended on the bottom wall of the crossbeam 212, so as to facilitate assembly and facilitate positioning of the installation position of the hook 23 relative to the frame 21, so as to avoid interference between the frame 21 and the frame 21 when the ton bag 1a is hooked. Of course, in some embodiments, the rack 21 may be configured as a plate or block structure, which is not specifically limited in this application.

[0078] In some embodiments, the frame 21 further includes a protective cover 216. The protective cover 216 is fixedly connected to the cross beam 212 and / or the two side beams 211, and forms an installation cavity 2101 with the cross beam 212 and the two side beams 211. The hook 23 and the stopper 24 are disposed in the installation cavity 2101, and the protective cover 216 includes a cover body 2161 and a protective plate 2162 fixedly connected to the cover body 2161, the protective plate 2162 covers the protective plate 2162 of the cross beam 212, and the top wall of the protective plate 2162 is configured as an inclined surface. Thus, on the one hand, the protective cover 216 can prevent materials or other foreign particles from entering the various mechanical parts in the protective cover 216 and affecting the operation, and prevent the debris generated in the various mechanical parts in the protective cover 216 from entering the materials and affecting the quality of the materials; on the other hand, the top wall of the protective plate 2162 is configured as an inclined surface, so that the accumulated materials on the protective plate 2162 can slide down under the action of gravity, avoiding the accumulation of materials on the frame 21 and improving the dust removal effect. In this embodiment, the protective cover 216 is fixedly mounted on the frame 21. Specifically, the edge of the protective cover 216 is detachably mounted on the cross beam 212 and the two side beams 211 through a locking structure, thereby improving the reliability and stability of the connection between the protective cover 216 and the frame 21.

[0079] In some embodiments, the hook assembly 230 further includes a weight sensor 28. The weight sensor 28 is disposed between the frame 21 and the hook 23. Specifically, the weight sensor 28 is disposed between the connecting rod 231 and the frame 21. Thus, on the one hand, the weight sensor 28 can be used to detect whether the hook 23 hooks the lug 12a of the ton bag 1a, thereby improving the reliability and safety of the hook assembly 230 hooking the ton bag 1a; on the other hand, the weight sensor 28 can also be used to detect the residual amount of material in the ton bag 1a when the ton bag 1a is broken and unloaded. Specifically, in some embodiments, the weight sensor 28 can also be disposed on the hook body 232 of the hook 23.

[0080] In some embodiments, a slide rail 214 is provided on the frame 21, and a guide structure 235 that is slidably matched with the slide rail 214 is provided on the hook 23. The extension direction of the slide rail 214 is parallel to the height direction Z of the hook assembly 230. As a result, the success rate and stability of the hook 23 hooking the ear 12a are improved, and the detection accuracy of the weight sensor 28 described later is improved. Of course, in some embodiments, the hook 23 can also be fixedly set on the frame 21. Specifically, the frame 21 also includes a connecting plate 213, the connecting plate 213 is connected between the two side beams 211, and the slide rail 214 is installed on the connecting plate 213.

[0081] Please refer again Figure 4 and Figure 5In some embodiments, the hook assembly 230 further includes a flapping member 27. The flapping member 27 includes a second driving member 271 and a flapping rod 272. The second driving member 271 is mounted on the frame 21 and is in transmission connection with the flapping rod 272. Thus, on the one hand, the flapping member 27 can be used to flap the ton bag 1a, thereby improving the fluidity of the material in the ton bag 1a during the blanking process, reducing the residual amount, and thus improving the unloading efficiency and unloading effect; on the other hand, the flapping member 27 is integrated into the frame 21, which improves the integration, reduces the space occupied by the overall structure of the hook assembly 230 on the cabinet 1, and facilitates installation.

[0082] Specifically, the frame 21 also includes a support plate 217, and the support plate 217 is connected between the bottoms of the two side beams 211. The second driving member 271 is installed on the side of the support plate 217 close to the limiter 24, and is arranged to avoid the limiter 24. The beating rod 272 is arranged on the side of the support plate 217 facing away from the limiter 24. Therefore, on the one hand, the support plate 217 separates the beating rod 272 from the limiter 24, thereby avoiding the motion interference between the beating rod 272 and the limiter 24, and improving the reliability and safety of the hook assembly 230; on the other hand, the beating member 27 is integrated into the hook assembly 230, thereby reducing the space occupied by the beating member 27, making the structure of the automatic unpacking equipment 100 compact, reducing the difficulty of assembly, and improving production efficiency.

[0083] In the present embodiment, the protective cover 216 is provided on the outside of the support plate 217 and the two side beams 211. The limiter 24 and the first drive member 25 are both installed on the two side beams 211 of the frame 21 through the support plate 217. Specifically, the support plate 217 and the flapping member 27, the limiter 24 and the first drive member 25 can be integrated into an integral structure, thereby optimizing the layout of the connecting cables of the first drive member 25 and the second drive member 271, and reducing the problem of cable entanglement. Of course, in some other embodiments, at least one of the limiter 24 and the first drive member 25 can also be directly installed on the side beam 211, and the installation position and installation method of the limiter 24 and the first drive member 25 are not specifically limited in the embodiment of the present application.

[0084] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A hook assembly (230), characterized in that: include: Rack (21); A hook (23), the hook (23) being mounted on the frame (21) and used for hooking the lifting lug (12a) of the ton bag (1a); A limiting member (24), wherein the limiting member (24) is rotatably mounted on the frame (21); A first driving member (25), the first driving member (25) is drivingly connected to the limiting member (24), and the first driving member (25) is used to drive the limiting member (24) to rotate, so as to lock the lifting ear (12a) between the limiting member (24) and the hook (23) or to pull the lifting ear (12a) away from the hook (23).

2. The hook assembly (230) according to claim 1, characterized in that: The limiting member (24) comprises a rotating shaft (241) and a limiting rod (242); the rotating shaft (241) is rotatably mounted on the frame (21) and is drivingly connected to the first driving member (25); the limiting rod (242) is fixedly connected to the rotating shaft (241); the limiting rod (242) is arranged close to the hook (23); and in a projection plane perpendicular to the central axis of the rotating shaft (241), the free end of the hook (23) is located within the swinging range of the limiting rod (242).

3. The hook assembly (230) according to claim 2, characterized in that: The hook (23) comprises a connecting rod (231) and two hook bodies (232); the connecting rod (231) is fixedly connected to the two hook bodies (232) to form a position-avoiding groove (2301); and the limiting rod (242) is rotatably arranged in the position-avoiding groove (2301).

4. The hook assembly (230) according to claim 2, characterized in that: The limiting rod (242) is configured as an arc rod or a straight rod.

5. The hook assembly (230) according to claim 2, characterized in that: The hook (23) and the limiting rod (242) are each provided in at least two numbers, and at least two limiting rods (242) are arranged on the rotating shaft (241) at intervals and are respectively arranged in one-to-one correspondence with the hook (23).

6. The hook assembly (230) according to claim 1, characterized in that: The hook (23) further comprises a guide sliding structure (234), wherein the guide sliding structure (234) is configured as an arc surface provided at the free end of the hook (23); or, configured as a rolling structure that is rollingly connected to the free end of the hook (23).

7. The hook assembly (230) according to claim 1, characterized in that: The hooking assembly (230) further comprises an in-position sensor (26), wherein the in-position sensor (26) is mounted on the frame (21) and is used to generate a sensing signal when detecting that the ton bag (1a) reaches the hooking position.

8. The hook assembly (230) according to claim 7, characterized in that: The in-position sensor (26) and the hook (23) are arranged at intervals in the length direction (X) of the hook assembly (230).

9. The hook assembly (230) according to claim 7, characterized in that: The hook (23) includes a contact surface (2302) and a connecting surface (2303), wherein the contact surface (2302) and the connecting surface (2303) are arranged opposite to each other in the width direction (Y) of the hook assembly (230), and the contact surface (2302) is used for contacting with the ton bag (1a). In a projection plane parallel to the width direction (Y) of the hook assembly (230), the in-place sensor (26) is located between the contact surface (2302) and the connecting surface (2303), and the distance between the in-place sensor (26) and the contact surface (2302) is less than or equal to a preset threshold.

10. The hook assembly (230) according to claim 7, characterized in that: In the height direction (Z) of the hook assembly (230), the height difference between the in-place sensor (26) and the free end of the hook (23) is within a preset height range.

11. The hook assembly (230) according to claim 1, characterized in that: The frame (21) comprises two side beams (211) and a cross beam (212); the cross beam (212) is connected between the two side beams (211); the hook (23) is mounted on the cross beam (212); and the limiter (24) is rotatably mounted on the side beam (211).

12. The hook assembly (230) according to claim 11, characterized in that: The frame (21) also includes a protective cover (216), wherein the protective cover (216) is fixedly connected to the crossbeam (212) and / or the two side beams (211), and forms an installation cavity (2101) with the crossbeam (212) and the two side beams (211), wherein the hook (23) and the limiter (24) are arranged in the installation cavity (2101), and the protective cover (216) includes a cover body (2161) and a protective plate (2162) fixedly connected to the cover body (2161), wherein the protective plate (2162) covers the protective plate (2162) of the crossbeam (212), and the top wall of the protective plate (2162) is configured as an inclined surface.

13. The hook assembly (230) according to claim 11, characterized in that: The hook assembly (230) further comprises a beating member (27), wherein the beating member (27) comprises a second driving member (271) and a beating rod (272), wherein the second driving member (271) is mounted on the frame (21) and is in transmission connection with the beating rod (272).

14. The hook assembly (230) according to claim 13, characterized in that: The frame (21) further comprises a support plate (217), wherein the support plate (217) is connected between the bottoms of the two side beams (211); the second driving member (271) is mounted on a side of the support plate (217) close to the limiting member (24) and arranged to avoid the limiting member (24); and the beating rod (272) is arranged on a side of the support plate (217) facing away from the limiting member (24).

15. The hook assembly (230) according to claim 1, characterized in that: The hook assembly (230) further comprises a weight sensor (28), wherein the weight sensor (28) is arranged between the frame (21) and the hook (23).

16. The hook assembly (230) according to claim 15, characterized in that: The frame (21) is provided with a slide rail (214), the hook (23) is provided with a guide structure (235) that slidably cooperates with the slide rail (214), and the extension direction of the slide rail (214) is parallel to the height direction (Z) of the hook assembly (230).

17. A hooking device (2), characterized in that: It comprises a mounting seat (210), a translation drive member (220) and two hooking assemblies (230) as described in any one of claims 1 to 16, wherein the translation drive member (220) and the two hooking assemblies (230) are mounted on the mounting seat (210), and the translation drive member (220) is used to drive the two hooking assemblies (230) to move closer to or farther away from each other in the width direction (Y) of the hooking assemblies (230).

18. An automatic unpacking device (100), characterized in that: It comprises a cabinet (1) and a hooking device (2) as claimed in claim 17, wherein the hooking device (2) is movably installed in the cabinet (1).

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