An automatic unpacking, discharging, and recycling device and working method for bulk bags

Abstract

The present invention relates to an automatic unpacking, discharging and recycling device and working method for bulk bags, including a lifting mechanism which is connected to a lifting vehicle. The lifting vehicle is rotatably connected with a material cylinder, and the material cylinder is connected to a turning drive mechanism arranged on the lifting vehicle. A hook drive mechanism is arranged at the bottom of the material cylinder, and the hook drive mechanism is connected to a hook. The hook can catch the sling arranged at the bottom of the bulk bag. A hopper is arranged directly below the end of the lifting mechanism. An inclined guiding grate is arranged in the hopper. A material conveying mechanism is arranged directly below the discharge port of the hopper. A bulk bag packing machine is arranged on one side of the end of the guiding grate. The device of the present invention has high working efficiency, low labor intensity and avoids waste of resources.

Description

Technical Field

[0001] The present invention relates to the technical field of unpacking equipment for bulk bags, and specifically relates to an automatic unpacking, discharging, and recycling device for bulk bags and a working method thereof. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] A bulk bag is a flexible transportation packaging container, which has the advantages of moisture-proof, dust-proof, radiation-resistant, firm and safe, and has sufficient strength in structure, and is very convenient for loading, unloading and handling.

[0004] Currently, the unpacking and discharging of bulk bags are mainly carried out manually, and it is necessary to manually take out the materials in the bulk bag. The inventor found that this method has low work efficiency and high labor intensity. The inventor also found that the existing automatic unpacking and discharging equipment for bulk bags needs to damage the bulk bag for unpacking and discharging, and cannot realize the recycling and reuse of the bulk bag, which greatly wastes resources. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatic unpacking, discharging, and recycling device for bulk bags, which can realize the automatic unpacking and discharging of bulk bags in a non-damaged state, and the bulk bags can be recycled and reused, greatly saving resources.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention provides an automatic unpacking, discharging, and recycling device for bulk bags, including a lifting mechanism, the lifting mechanism is connected to a lifting vehicle, the lifting vehicle is rotatably connected to a material cylinder, the material cylinder is connected to a flipping drive mechanism arranged on the lifting vehicle, a hook drive mechanism is arranged at the bottom of the material cylinder, the hook drive mechanism is connected to a hook, and the hook can hook the sling arranged at the bottom of the bulk bag. A hopper is arranged directly below the end of the lifting mechanism. An inclined guiding grate is arranged in the hopper. The hopper is provided with a bulk bag outlet, and the bulk bag sliding down on the guiding grate can slide out of the hopper through the bulk bag outlet. A material conveying mechanism is arranged directly below the discharge port of the hopper.

[0008] Second aspect, an embodiment of the present invention provides a working method for the automatic unpacking, discharging and recycling device of the ton bag described in the first aspect: Place the ton bag containing the material to be unloaded in the barrel, hook the sling at the bottom of the ton bag with the hook, the lifting mechanism drives the lifting vehicle to rise above the hopper, the flipping drive mechanism works, drives the barrel to flip, the material in the ton bag is poured into the hopper, and after passing through the guiding grate, it falls from the discharge port of the hopper into the material conveying mechanism. After the material in the ton bag is poured out, the hook drive mechanism drives the hook to rotate, and the hook is separated from the sling at the bottom of the ton bag. The ton bag enters the hopper under the action of gravity and lands on the guiding grate. The ton bag slides on the guiding grate and slides out of the hopper through the ton bag outlet.

[0009] Advantages of the present invention:

[0010] 1. The device of the present invention can use the lifting mechanism to lift the lifting vehicle directly above the hopper. The lifting vehicle is equipped with a flipping drive mechanism that can drive the flipping of the barrel, pour the material into the hopper, realizing automatic discharging without manual unloading, with high working efficiency and reducing the labor intensity of the staff.

[0011] 2. The device of the present invention, the barrel is equipped with a hook drive mechanism and a hook. After the ton bag is flipped with the barrel, the hook can hook the sling at the bottom of the ton bag to realize the pouring of the material in the ton bag. After the material in the ton bag is poured out, the hook drive mechanism can drive the hook to rotate, separating the hook from the sling of the ton bag, realizing the free fall of the ton bag, and sliding under the action of the guiding grate, which can realize the recycling of the ton bag, greatly saving resources and avoiding waste of resources. Description of the Drawings

[0012] The schematic diagrams in the specification that form a part of this application are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute a limitation to this application.

[0013] Figure 1 It is a front view schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0014] Figure 2 It is a top view schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0015] Figure 3 It is an assembly schematic diagram of the barrel, hook and hook drive mechanism of Embodiment 1 of the present invention;

[0016] Among them, 1. driving sprocket, 2. driven sprocket, 3. drive chain, 4. elevator truck, 5. guide rail, 6. guide rail support column, 7. barrel, 8. rotating shaft, 9. bearing seat, 10. tipping cylinder, 11. tipping cylinder bracket, 12. rack, 13. gear, 14. silo, 15. material conveying mechanism, 16. hook, 17. gravity disc, 18. chute, 19. connecting rod, 20. steel beam, 21. sleeve, 22. locking column, 23. spring, 24. fixed seat, 25. locking drive part support, 26. locking cylinder, 27. locking pin, 28. guiding grate, 29. bulk bag packing machine, 30. housing, 31. dust suppression part, 32. inclined plug type cartridge filter, 33. recovery tray. Detailed implementation manners

[0017] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0018] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0019] For the convenience of narration, if the words "upper", "lower", "left", and "right" appear in the present invention, they only represent the same directions as the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0020] As introduced in the background art, at present, bulk bags are unpacked and unloaded manually, with a large labor intensity. The automatic unloading equipment for bulk bags needs to unload the bulk bags with damage and cannot realize the recycling of bulk bags, resulting in great waste of resources. The present application proposes a bulk bag automatic unloading and recycling device.

[0021] In a typical implementation manner of the present application, as Figures 1-3As shown in the figure, an automatic unpacking, discharging and recycling device for bulk bags includes a lifting mechanism arranged at a set angle with the horizontal plane. The lifting mechanism is connected to a lifting vehicle and can drive the lifting vehicle to move. In this embodiment, the lifting mechanism adopts two chain drive mechanisms arranged at an angle with the horizontal plane, including a driving sprocket 1, a driven sprocket 2 and a transmission chain 3 wound between the driving sprocket and the driven sprocket. The driving sprocket is connected to a driving reduction motor, and the driving reduction motor can drive the operation of the chain drive mechanism. The driving reduction motor, the driving sprocket and the driven sprocket are all installed on the lifting mechanism bracket.

[0022] It can be understood that the lifting mechanism can also adopt a belt drive mechanism or other types of drive mechanisms, as long as it can drive the lifting vehicle to move up and down. Those skilled in the art can set it according to actual needs.

[0023] A lifting vehicle 4 is arranged between the transmission chains of the two chain drive mechanisms. Both ends of the lifting vehicle are fixedly connected to the transmission chains of the two chain drive mechanisms. The lifting vehicle includes a vehicle body and wheels. The vehicle body adopts a frame structure welded by profiled steel. Wheels are rotatably connected to both sides of the vehicle body. The wheels are embedded in a fixed guide rail 5. The guide rail is fixedly connected to the ground foundation through a guide rail support column 6. The transmission chain of the chain drive mechanism can drive the lifting vehicle to move along the guide rail.

[0024] A material cylinder 7 is rotatably connected to the lifting vehicle. The material cylinder adopts an inverted frustum structure. Rotating shafts 8 are fixed at both ends of the material cylinder. One end of the rotating shaft is fixedly connected to the barrel wall of the material cylinder, and the other end is rotatably connected to a bearing seat 9. The bearing seat is fixed on the lifting vehicle.

[0025] The material cylinder is connected to a flipping drive mechanism. The flipping drive mechanism can drive the material cylinder to flip 180°. The flipping drive mechanism includes linear drive members fixed on both sides of the lifting vehicle. In this embodiment, the linear drive members adopt flipping cylinders 10. The flipping cylinders are fixedly connected to the lifting vehicle through flipping cylinder brackets 11. The piston rod of the flipping cylinder is fixedly connected to one end of a rack 12. The racks connected to the piston rods of the two flipping cylinders are respectively engaged with gears 13 fixedly connected to the two rotating shafts. The piston rod of the flipping cylinder drives the rack to move, and can drive the rotating shaft to rotate through the gear, and then drive the flipping of the material cylinder. It can be understood that the linear drive members can also adopt linear motors or lead screw drive mechanisms or electric telescopic rods, as long as they can output linear motion.

[0026] A silo 14 is provided directly below the end of the elevating mechanism. The silo has an inverted frustum shape, and a discharge opening is provided at the bottom of the silo. The silo is fixed by a silo support. A material conveying mechanism 15 is provided directly below the discharge opening of the silo. In this embodiment, the material conveying mechanism uses an existing MS type submerged scraper conveyor, and the material falling from the silo can enter the scraper conveyor for transportation using the scraper conveyor.

[0027] It can be understood that other types of conveying mechanisms can also be used for the material conveying mechanism, as long as they can meet the requirement of conveying materials. Those skilled in the art can select according to actual needs.

[0028] Openings are provided at the four corners of the bottom of the barrel. Hooks 16 are provided at the openings. In this embodiment, the hooks have a V-shaped structure, and the slings provided at the bottom of the ton bag can be hooked to the hooks. The hooks are connected to a hook driving mechanism, and the hook driving mechanism can drive the hooks to rotate, thereby releasing the hooked state with the slings.

[0029] The hook driving mechanism includes a gravity disk 17. A gravity disk that can move along the axis direction of the barrel is provided inside the barrel. Chutes 18 are provided at both ends of the gravity disk. Connecting rods 19 are provided in the chutes, and the connecting rods can slide along the chutes. The ends of the connecting rods extend outside the gravity disk, and the two ends of the connecting rods are respectively rotatably connected to the corner parts of the two hooks.

[0030] One end of the hook is rotatably connected to a steel beam 20 fixed to the bottom of the barrel, and the other end is provided with a hook tip structure. When the gravity disk is in the position closest to the bottom of the barrel under the action of the ton bag, the sling at the bottom of the ton bag can pass through the opening and be hooked to the hook. When the barrel is flipped 180 degrees and the gravity disk moves away from the bottom of the barrel, the connecting rods on both sides of the gravity disk move towards each other along the chutes, and the hooks rotate around the connection position with the steel beam, thereby releasing the hooking of the sling. At this time, the ton bag can fall from the barrel.

[0031] In this embodiment, a sleeve 21 is provided on the bottom surface of the barrel. A locking column 22 is provided inside the sleeve. One end of the locking column is fixedly connected to the bottom surface of the gravity disk, and the other end extends outside the locking column. An elastic member is sleeved on the outer periphery of the locking column. The elastic member uses a spring 23. One end of the spring is fixedly connected to the gravity disk, and the other end is fixedly connected to the sleeve. A fixing seat 24 is provided on one side of the sleeve at the bottom of the barrel. A locking driving member is fixed on the fixing seat through a locking driving member support 25. In this embodiment, the locking driving member uses a locking cylinder 26. It can be understood that the locking driving member can also use a linear motor or a lead screw transmission mechanism or an electric telescopic rod, as long as it can output a linear motion. The piston rod of the locking cylinder is fixedly connected to a locking pin 27, and the locking pin can be inserted into a locking hole provided in the locking column to realize the locking and fixing of the gravity disk.

[0032] In this embodiment, in order to ensure the balance of the movement of the gravity disc, a plurality of the sleeves and springs may be provided.

[0033] In this embodiment, a guiding grate 28 is provided inside the silo. The guiding grate is arranged at a set angle with the horizontal plane. The guiding grate is provided with a plurality of through holes, which allow the material to pass through while the ton bags cannot pass through. A ton bag outlet is provided on the hopper at the lower end of the guiding grate with a lower height. The ton bags falling onto the guiding grate can slide along the guiding grate and fall out from the ton bag outlet of the silo, facilitating the recycling and reuse of the ton bags in the next step.

[0034] A ton bag packing machine 29 is provided on one side of the ton bag outlet. The ton bag packing machine can adopt an existing ton bag packing machine. Using existing equipment, its specific structure will not be described in detail here.

[0035] The ton bags falling onto the guiding grate can slide along the guiding grate, slide out through the ton bag outlet and then fall into the ton bag packing machine for packing.

[0036] A residual material recovery member is provided directly below the inlet position of the ton bag packing machine. The residual material recovery member adopts a recovery tray 33, which is used to recover the materials that are not completely emptied from the ton bags and fall during the process of entering the ton bag packing machine.

[0037] In this embodiment, the silo, the ton bag packing machine, and the end of the elevating mechanism are all located inside the housing 30. The housing is composed of a plurality of steel plates welded together. The housing is fixed on the ground foundation. The housing is provided with an inlet for the elevating mechanism and the material cylinder to enter. An anti-dust member 31 is provided at the inlet. The anti-dust member adopts a rubber dust-proof curtain and / or a pneumatic back-blowing anti-dust device, which is used to prevent the dust generated by the material cylinder pouring materials from spreading outside the housing and polluting the surrounding environment. The pneumatic back-blowing anti-dust device can adopt an existing structure, and its structure will not be described in detail here.

[0038] A dust collector is installed on the top of the housing. In this embodiment, the dust collector adopts an inclined plug-in filter cartridge dust collector 32, which adopts an advanced sink-flow layout and a filter cartridge inclined installation structure. Therefore, the dust collector has a good synchronous dust cleaning effect during operation.

[0039] A dust baffle is arranged at the dust gas inlet of the dust collector, which has a buffering and wear-resistant effect and does not allow the dust to directly impact the filter cartridge at high speed. Therefore, the service life of the filter cartridge can be extended.

[0040] The filter cartridges of the dust collector are installed in an inclined drawer type, which can make the replacement of the filter cartridges more convenient. Moreover, no transmission components are arranged inside the dust collector body, reducing the maintenance work to a minimum. For general dust, the filter cartridges can be used for a long time without replacement, eliminating the cumbersome work of frequently washing and replacing the filter bags of the common bag type dust collectors and saving a large amount of maintenance costs.

[0041] In this embodiment, components such as the chain drive mechanism, the material conveying mechanism, the tipping cylinder, and the locking cylinder are all connected to the control system, and their operations are controlled by the control system, realizing the automation of the entire discharging process.

[0042] Embodiment 2:

[0043] This embodiment discloses a working method of the automatic unpacking, discharging, and recycling device for ton bags described in Embodiment 1:

[0044] The staff uses a forklift to place the ton bag filled with materials into the barrel. Under the gravity of the ton bag, the gravity disc compresses the spring, causing the gravity disc to be in the position closest to the bottom of the barrel. The staff passes the sling at the bottom of the ton bag through the opening of the barrel and hangs it on the hook. At this time, the barrel is in a horizontal state. The control system controls the locking cylinder to work, and the locking pin is inserted into the locking hole of the locking column to lock and fix the gravity disc. The control system controls the drive motor of the chain drive mechanism to work, and the drive chain drives the lifting vehicle to rise along the guide rail. The lifting vehicle drives the barrel to rise. When the barrel rises to a position directly above the silo, the control system controls the chain drive mechanism to stop working. The control system controls the tipping cylinder to work, and the tipping cylinder drives the rack to move. Under the meshing action of the rack and the gear, the barrel is tipped 180°. The materials in the ton bag are introduced into the silo, and after passing through the guiding grate, they fall into the scraper conveyor through the discharge port and are transported outside the housing by the scraper conveyor. When all the materials in the ton bag are emptied, the control system controls the locking cylinder to work. The locking cylinder withdraws the locking pin from the locking hole. Under the action of the self-gravity of the gravity disc and the spring, the gravity disc moves in a direction away from the bottom of the barrel. The connecting rods slide towards each other in the chute, and the hook rotates, causing the sling at the bottom of the ton bag to disengage from the hook. The ton bag falls into the silo under the action of gravity and slides out through the ton bag outlet under the action of the guiding grate and falls into the ton bag packing machine. The ton bag packing machine packs the ton bag. In this embodiment, 50 ton bags are packed into one package. After packing is completed, it is ready for the next use of containing materials.

[0045] Using the device of this embodiment, the whole process is carried out automatically, which can realize the automatic unpacking and discharging of ton bags, reduce the labor intensity of the staff, improve the work efficiency, and moreover, the ton bags do not need to be damaged during the discharging process, and the ton bags can be recycled, avoiding waste of resources and reducing the production and transportation costs.

[0046] Although the specific implementation manners of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. An automatic unpacking, discharging and recycling device for bulk bags, characterized in that It includes a lifting mechanism which is connected to a lifting truck. The lifting truck is rotatably connected with a material cylinder. The material cylinder is connected to a flipping drive mechanism arranged on the lifting truck. A hook drive mechanism is provided at the bottom of the material cylinder. The hook drive mechanism is connected to a hook. The hook can catch the sling arranged at the bottom of the ton bag. Right below the end of the lifting mechanism, there is a hopper. An inclined guiding grate is arranged in the hopper. Right below the discharge port of the hopper, there is a material conveying mechanism; multiple through holes are provided on the guiding grate, and the through holes allow materials to pass through while the ton bag cannot pass through; the hopper where the end of the guiding grate is located is provided with a ton bag outlet. A ton bag packing machine is arranged on one side of the ton bag outlet. The guiding grate can send the ton bag into the ton bag packing machine. A residual material recovery part is arranged below the bag inlet of the ton bag packing machine for recovering the materials dropped by the ton bag. The hook drive mechanism includes a gravity disk located inside the material cylinder. The gravity disk can move along the axis direction of the material cylinder and be locked and fixed. Chute grooves are provided at both ends of the gravity disk. Connecting rods pass through the chute grooves. Both ends of the connecting rods are rotatably connected to the corner parts of a V-shaped hook. One end of the hook is rotatably connected to the bottom of the material cylinder, and the other end is provided with a hook tip structure. An opening for the rotation of the hook and the hanging connection between the sling at the bottom of the ton bag and the hook is provided at the bottom of the material cylinder. The gravity disk is elastically connected to the bottom of the material cylinder through an elastic member. A locking column is provided at the bottom of the gravity disk. The locking column extends out of the material cylinder. A locking drive part is provided at the bottom of the material cylinder. The locking drive part is connected to a locking pin. The locking drive part can drive the locking pin to insert into the locking column to lock and fix the gravity disk.

2. The automatic unpacking, discharging and recycling device for ton bags according to claim 1, characterized in that, The lifting mechanism includes a chain drive mechanism. The drive chain of the chain drive mechanism is connected to the lifting truck. The traveling wheels of the lifting truck are embedded in the guide rails.

3. The automatic unpacking, discharging and recycling device for ton bags according to claim 1, characterized in that, The flipping drive mechanism includes a linear drive part fixed on the lifting truck. The linear drive part is connected to a rack. The rack meshes with a gear. The gear is fixed on a rotating shaft. One end of the rotating shaft is fixed to the material cylinder, and the other end is rotatably connected to the lifting truck.

4. The automatic unpacking, discharging and recycling device for ton bags according to claim 1, characterized in that, Both the hopper and the end of the lifting mechanism are arranged inside a housing. The housing is provided with an inlet for the lifting mechanism to enter. A dust suppression part is installed at the inlet.

5. The automatic unpacking, discharging and recycling device for ton bags according to claim 4, characterized in that, A dust collector is installed on the top of the housing.

6. A working method of the automatic unpacking, discharging and recycling device for the bulk bag according to any one of claims 1-5, characterized in that, A ton bag containing the material to be unloaded is placed in the material cylinder. The hook catches the sling at the bottom of the ton bag. The lifting mechanism drives the lifting truck to rise above the hopper. The flipping drive mechanism works to drive the material cylinder to flip. The material in the ton bag is poured into the hopper. After passing through the guiding grate, it falls from the discharge port of the hopper into the material conveying mechanism. After the material in the ton bag is poured out, the hook drive mechanism drives the hook to rotate, and the hook is separated from the sling at the bottom of the ton bag. The ton bag enters the hopper under the action of gravity and lands on the guiding grate, and the ton bag slides on the guiding grate.

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