Feeding device

Abstract

The embodiment of the utility model provides a feeding device which is used for being matched with clamping equipment for closed feeding and comprises an unpacking barrel and a material conveying barrel which are arranged in a split mode. The top of the unpacking barrel is provided with an expansion opening for vertical insertion of the material conveying barrel, and the interior of the unpacking barrel is rotationally connected with an unpacking cone; the top of the material conveying barrel is connected with cover bodies in a relatively rotating mode, rubber pads are assembled at the relatively closed ends of the two cover bodies, and a locking plate mechanism is assembled between the two cover bodies. A sealing ring is arranged on the outer wall of the material conveying barrel in the circumferential direction, a plurality of material supporting rods are arranged on the lower portion of the material conveying barrel in the circumferential direction at intervals, the unpacking cone rotates to avoid the material supporting rods and then extends into an inner cavity of the material conveying barrel, and the sealing ring blocks a gap between the material conveying barrel and the unpacking barrel. Respirators are arranged on the material conveying barrel and / or the unpacking barrel. According to the device, a closed feeding mode is adopted, dust is prevented from scattering outwards, the excellence of the working condition environment is guaranteed, the health and safety of constructors are guaranteed, the overall automation degree is high, and human intervention is reduced.

Description

Technical Field

[0001] This application relates to the field of bagged raw material feeding technology, and in particular to a feeding device. Background Technology

[0002] Traditional powder unpacking and feeding methods largely rely on manual operation. During the feeding process of highly toxic and hygroscopic powdered raw materials, workers are susceptible to inhaling the dust generated, which can harm their health. With the increasing level of industrial automation, the requirements for automated, efficient, and low-pollution powder unpacking and feeding are growing. To improve the efficiency of powder unpacking and feeding, reduce the labor intensity of workers, minimize dust generation during feeding, ensure product quality, and guarantee personnel safety, technological innovation in powder unpacking and feeding devices has been driven. While existing automatic unpacking and feeding devices have achieved partial automation, their large turning radius, rapid turning speed, and large powder drop distance during feeding result in significant dust generation, leading to poor working conditions and harming worker health. Summary of the Invention

[0003] The purpose of this utility model application is to provide a feeding device that enables closed-loop feeding, ensures a good working environment, and protects the health of operators.

[0004] This application provides a feeding device for use in conjunction with a clamping device for closed-loop feeding. The feeding device includes a separately configured unpacking cylinder and a conveying cylinder; wherein...

[0005] The bottom of the unpacking cylinder is connected to the hopper, the top of the unpacking cylinder is provided with an expansion port for the vertical insertion of the conveying cylinder, and the unpacking cone is rotatably connected inside the unpacking cylinder;

[0006] The top of the material conveying cylinder is rotatably connected to a cover. The two covers are each fitted with a rubber pad for clamping the top edge of the material bag at one closed end. A locking plate mechanism is also fitted between the two covers.

[0007] A sealing ring is provided on the outer wall of the conveying cylinder, and multiple material support rods are provided at intervals on the lower part of the conveying cylinder. After the unpacking cone rotates to avoid the multiple material support rods, it extends into the inner cavity of the conveying cylinder, and the sealing ring seals the gap between the conveying cylinder and the unpacking cylinder.

[0008] A breather is provided on the conveying cylinder and / or the unpacking cylinder.

[0009] In this application, a clamping device holds the conveying cylinder for flexible operation. The material bag is positioned inside the conveying cylinder and its top edge is held in place by rubber pads on the cover. The bottom of the material bag is supported by multiple material support bars. The clamping device holds the conveying cylinder directly above the unpacking cylinder. During the descent of the conveying cylinder, the expansion port provides coarse positioning guidance. As the material support bars descend, they contact the unpacking cone and adjust its rotation position. The tip of the unpacking cone penetrates the bottom of the material bag and gradually divides the bag in multiple directions. The sealing ring seals the gap between the conveying cylinder and the unpacking cylinder and provides precise positioning guidance, improving the reliability and fault tolerance of the unpacking action. The unpacking cone enables automatic unpacking and material dropping, effectively avoiding contact with materials during manual unpacking, ensuring the cleanliness of the materials and the safety of personnel. The included breather helps the powder fall quickly during unpacking and feeding, preventing powder spillage and effectively improving the unpacking and feeding efficiency. The overall feeding process is safe and reliable, with a simple overall structure and convenient operation, while improving safety and increasing production efficiency.

[0010] In one specific implementation, the bottom of the conveying cylinder is open, and the plurality of material support rods are circumferentially connected to the inner wall of the conveying cylinder, and the height of the plurality of material support rods is higher than the bottom opening.

[0011] In one specific implementation, both of the covers are connected to the feed cylinder via a hinge shaft.

[0012] In one specific feasible implementation, the locking mechanism is mounted on any one of the covers;

[0013] When the two rubber pads are closed relative to each other, the locking plate mechanism clamps and fixes the two rubber pads.

[0014] In one specific implementation, the unpacking cylinder is provided with a support inside, and the unpacking cone is rotatably connected to the support via a bushing.

[0015] In one specific implementation, the unpacking cone includes: a main shaft, a pointed conical section disposed at the top of the main shaft, and a plurality of circumferentially distributed blades on the main shaft; wherein,

[0016] Each of the plurality of cutting blades has a cutting bevel that converges toward the pointed conical segment.

[0017] In one specific implementation, when the feeding cylinder is vertically inserted into the unpacking cylinder, the plurality of cutting blades avoid the plurality of material support bars.

[0018] In one specific implementation, the gripping device is any one of a robotic arm, a lifting device, or a gripping lifting device. Attached Figure Description

[0019] Figure 1This is an assembly diagram of the feeding device provided in this application.

[0020] Figure 2 A three-dimensional structural diagram of the feeding device provided in this application.

[0021] Figure 3 A cross-sectional view of the feeding device provided in this application.

[0022] Figure 4 This is a three-dimensional structural diagram of the material conveying cylinder provided in this application.

[0023] Figure 5 This is a schematic diagram of the working state of the material conveying cylinder provided in this application.

[0024] Figure 6 A bottom view of the material conveying cylinder provided in this application.

[0025] Figure 7 A top view of the unpacking tube provided in this application.

[0026] Figure 8 A bottom view of the unpacking tube provided in this application.

[0027] Figure 9 A cross-sectional view of the unpacking tube provided in this application.

[0028] Figure 10 This is a schematic diagram of the unpacking cone provided in this application. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] To facilitate understanding of the feeding device provided in this application embodiment, its application scenario is first described. The feeding device provided in this application embodiment is used for feeding bagged raw materials. In the prior art, most powder unpacking and feeding relies on manual operation. During the feeding process of highly toxic and hygroscopic powdered raw materials, personnel are prone to inhaling the dust raised during feeding, which can harm their health. Although automatic unpacking and feeding devices partially achieve automation, their large turning radius, fast turning speed, and large powder drop during feeding result in a large amount of dust. Therefore, this application embodiment provides a feeding device that adopts a closed feeding method to achieve automated feeding, reduce worker intervention, and ensure a superior construction environment.

[0032] Therefore, the feeding device provided in this application adopts a closed feeding method to improve feeding accuracy and ensure feeding safety. The feeding device will be described in detail below with specific examples.

[0033] refer to Figure 1 As shown, Figure 1 This application shows a schematic diagram of the assembly structure of the feeding device. The feeding device is used in conjunction with a clamping device for closed-loop feeding. The feeding device includes a separate unpacking cylinder 200 and a conveying cylinder 300. The clamping device used in this application can be any one of a robotic arm, a lifting device, or a clamping lifting device. The conveying cylinder 300 is lifted from the ground to above the unpacking cylinder 200 using the clamping device. The bottom of the unpacking cylinder 200 is fixedly connected to a hopper 100, which is a powder mixing hopper. After fixing the powder-filled bag 400 inside the conveying cylinder 300, the conveying cylinder 300 is slowly inserted vertically into the unpacking cylinder 200, opening the bottom of the bag 400. The powder in the bag 400 flows into the hopper 100 by gravity. Furthermore, the clamping device vibrates up and down or rotates left and right to clean the remaining powder from the bag 400. The entire feeding process takes place in a relatively enclosed environment, which can effectively curb dust diffusion, improve the working environment, greatly reduce worker intervention, improve the accuracy of automated feeding, and ensure the health of operators.

[0034] To further understand the closed-loop feeding principle of the feeding device in this application, refer to... Figure 2 and Figure 3As shown, the diameter of the conveying cylinder 300 is smaller than that of the unpacking cylinder 200, and the upper part of the conveying cylinder 300 has a smooth surface that cooperates with the clamping device. With the top of the conveying cylinder 300 open, the bag 400 is placed into the inner cavity of the conveying cylinder 300 by means of overhead crane or manual handling. Since the weight of some powder bags is about 25 kg to 40 kg, the worker can operate independently. After the bag 400 is placed in the conveying cylinder 300, the cover 320 is closed and the top edge of the bag 400 is clamped and fixed, thus completing the installation of the bag 400 relatively simply. After the bag 400 is placed inside the conveying cylinder 300, the conveying cylinder 300 is lifted to a designated height by the clamping device and flexibly moved to be directly above the unpacking cylinder 200. The unpacking cylinder 200 has an inner cavity to accommodate the conveying cylinder 300, with an opening at the bottom of the conveying cylinder 300. This allows the cavities to communicate when the conveying cylinder 300 is located within the inner cavity of the unpacking cylinder 200, enabling the powder to flow into the hopper 100 by gravity. The unpacking cylinder 200 is fixedly connected to the top of the hopper 100 via a flange, and its position remains stable. When the conveying cylinder 300 is vertically inserted into the unpacking cylinder 200, the bottom of the bag 400 is punctured and the contents scatter. The gap between the conveying cylinder 300 and the unpacking cylinder 200 is sealed by a sealing ring 350, effectively preventing the dispersion of the scattered powder.

[0035] When the silo 100 and the feeding equipment are in a closed feeding state, in order to allow the air inside the silo 100 to be discharged so that the powder can flow in quickly, a breather is provided on the conveying cylinder 300 and / or the unpacking cylinder 200 in this application. In one specific embodiment of this application, two breathers are provided: an upper breather 310 connected to the conveying cylinder 300 via a flange, and a lower breather 210 connected to the unpacking cylinder 200 via a flange. Both the upper breather 310 and the lower breather 210 are equipped with filters inside, so that while air can circulate, floating powder cannot be dispersed.

[0036] Please refer to the above. Figure 4 and Figure 5 As shown, the material conveying cylinder 300 in this application is a straight cylindrical body. The top of the material conveying cylinder 300 is rotatably connected to the cover 320. Both covers 320 are semi-circular structures used to seal the top opening. Both covers 320 are connected to the material conveying cylinder 300 through hinge shafts. Furthermore, the upper respirator 310 is installed on either cover 320 and communicates with the inner cavity of the material conveying cylinder 300.

[0037] Both of the two covers 320 are fitted with rubber pads 330 at their closed ends for clamping the top edge of the bag 400, and a locking mechanism 340 is fitted between the two covers 320. The locking mechanism 340 is used to clamp and fix the two rubber pads 330 when they are closed together, so that the top edge of the bag 400 is locked and fixed between the two rubber pads 330.

[0038] The rubber pad 330 is bonded to the two end faces of the cover plates facing each other. The two rubber pads 330 are squeezed and deformed in the locking state of the locking plate mechanism 340, thereby clamping and fixing the top sealing edge of the material bag 400. After the top sealing edge of the material bag 400 is fixed, it is convenient for vibration to drop material and for the recycling of the material bag 400.

[0039] Combination Figure 6 As shown, after the material bag 400 is placed inside the conveying cylinder 300, the bottom of the material bag 400 is supported by multiple support rods 360, which are welded to the inner wall of the conveying cylinder 300 at equal intervals. Furthermore, the welding height of the multiple support rods 360 is higher than the bottom opening of the conveying cylinder 300, preventing the bottom of the material bag 400 from wearing out and leaking material when it is conveyed on a conveyor line or other carrier within the conveying cylinder 300.

[0040] In one specific embodiment of this application, six material support rods 360 are welded circumferentially to the inner wall of the conveying cylinder 300. The six material support rods 360 are symmetrically distributed and support the bottom of the material bag 400, thereby ensuring a high supporting effect and preventing the weight of the material bag 400 from being borne by the rubber pad 330. When the conveying cylinder 300 moves vertically downward toward the unpacking cylinder 200, the bottom of the material bag 400 contacts the unpacking cone 240 inside the unpacking cylinder 200. After the unpacking cone 240 penetrates the bottom of the material bag 400, it opens the bottom of the material bag 400. At this time, the powder falls into the hopper 100 to complete the feeding work. The dust generated during the feeding process is blocked by the sealing ring 350.

[0041] Specifically, a sealing ring 350 is circumferentially arranged on the outer wall of the conveying cylinder 300, and multiple material support rods 360 are circumferentially spaced at the lower part of the conveying cylinder 300. After the unpacking cone 240 rotates to avoid the multiple material support rods 360, it extends into the inner cavity of the conveying cylinder 300, and the sealing ring 350 seals the gap between the conveying cylinder 300 and the unpacking cylinder 200. The sealing ring 350 is a felt sealing ring, and the outer diameter of the sealing ring 350 is the same as the inner diameter of the unpacking cylinder 200. During the process of the conveying cylinder 300 descending in the vertical direction, the sealing ring 350 achieves a tight seal to prevent the floating dust from scattering.

[0042] refer to Figure 7 and Figure 8As shown, the unpacking cylinder 200 in this application is a variable diameter cylinder that is wider at the top and narrower at the bottom. The narrow diameter at the bottom of the unpacking cylinder 200 is used to connect with the top of the hopper 100. The upper part of the unpacking cylinder 200 has an expansion port 220, thereby achieving coarse positioning guidance for the conveying cylinder 300 and giving it a certain degree of fault tolerance.

[0043] The unpacking cylinder 200 has a straight cylindrical section in the middle for vertical sliding engagement with the sealing ring 350. An unpacking cone 240 is rotatably connected inside the unpacking cylinder 200. After being coarsely positioned and guided by the expansion port 220, the material conveying cylinder 300 enters the straight section of the unpacking cylinder 200. The sealing ring 350 is then finely positioned and guided in the straight section. The sealing ring 350 and the straight section engage in sealing friction. At this time, the multiple material support rods 360 drive the unpacking cone 240 to rotate, causing... The unpacking cone 240 avoids multiple material support rods 360, and after the pointed cone section 242 of the unpacking cone 240 is inserted into the bottom of the material bag 400, the dispersed cutting blades 243 on the unpacking cone 240 divide and spread the bottom seal of the material bag 400, causing the opening to expand, and the powder enters the hopper 100 through the lower narrow diameter section; during the powder falling process, the upper breather 310 and the lower breather 210 exhaust the air in the hopper 100 to facilitate the falling of the powder.

[0044] Please refer to the above. Figure 9 and Figure 10 As shown, a support 250 is provided inside the unpacking cylinder 200, and the unpacking cone 240 is rotatably connected to the support 250 via a bushing 230. The bushing 230 is made of PTFE, and a rotating pair is formed between the unpacking cone 240 and the support 250, allowing the unpacking cone 240 to rotate freely within the unpacking cylinder 200. An elastic retaining ring is secured in the groove at the end of the unpacking cone 240 shaft to constrain its axial movement.

[0045] Specifically, the unpacking cone 240 includes: a main shaft 241, a pointed cone section 242 disposed at the top of the main shaft 241, and a plurality of cutting blades 243 circumferentially distributed on the main shaft 241; wherein, the main shaft 241 is rotatably connected to the bushing 230, and the plurality of cutting blades 243 all have a cutting bevel facing toward the pointed cone section 242. When the feeding cylinder 300 is vertically inserted into the unpacking cylinder 200, the plurality of cutting blades 243 avoid the plurality of material support bars 360.

[0046] As can be seen from the above structure, the equipment is first fully debugged before actual production operation. After debugging, the cover 320 is opened, the material bag 400 is put into the conveying cylinder 300, and the cover 320 is closed so that the top edge of the material bag 400 is located between the two rubber pads 330; at this time, the two locking plate mechanisms 340 are rotated so that the cover 320 cannot be opened. The loaded conveyor cylinder 300 can be lifted to directly above the unpacking cylinder 200 by a robotic arm or other lifting device. Then, the conveyor cylinder 300 is slowly lowered, inserting itself into the unpacking cylinder 200 until its bottom contacts the support 250 inside the unpacking cylinder 200. During this process, the bottom of the material bag 400 is punctured by the unpacking cone 240 located inside the unpacking cylinder 200, and the powder flows into the downstream hopper 100. During the interaction between the conveyor cylinder 300 and the unpacking cylinder 200, the airflow within the sealed cavities of the unpacking cylinder 200 and the conveyor cylinder 300 is discharged through the upper and lower breathers 310, facilitating the insertion of the conveyor cylinder 300 into the unpacking cylinder 200. When the powder flows into the downstream container, the overflow airflow within the hopper 100 is discharged through the upper and lower breathers 310, facilitating the falling of the powder. After unpacking and unloading, the unpacking cone 240 located in the unpacking cylinder 200 can be lifted up and down or twisted left and right in the circumferential direction to make mechanical impact on the empty bag 400, thereby further emptying the bag 400.

[0047] In this application, the material conveying cylinder 300 is held in place by a clamping device and rotated flexibly. The material bag 400 is positioned inside the material conveying cylinder 300 and its top edge is held in place by the rubber pad 330 on the cover 320. The bottom of the material bag 400 is supported by multiple material support rods 360. The clamping device holds the material conveying cylinder 300 directly above the unpacking cylinder 200. During the descent of the material conveying cylinder 300, it is coarsely positioned and guided by the expansion port 220. During the descent of the material support rods 360, they touch the unpacking cone 240 and adjust the rotation position of the unpacking cone 240. The tip of the unpacking cone 240 penetrates the bottom of the material bag 400. The system gradually divides the material bags into multiple directions (400), and the sealing ring (350) seals the gap between the conveying cylinder (300) and the unpacking cylinder, providing precise positioning and guidance to improve the reliability and fault tolerance of the unpacking action. The unpacking cone (240) enables automatic unpacking and material dropping, effectively avoiding contact with materials during manual unpacking and ensuring the cleanliness of the materials and the safety of personnel. The included breather helps the powder fall quickly during unpacking and feeding, preventing powder spillage and effectively improving unpacking and feeding efficiency. The overall feeding process is safe and reliable, with a simple structure and convenient operation, while improving safety and increasing production efficiency.

[0048] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0049] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A feeding device for use in conjunction with a clamping device for closed-loop feeding, characterized in that, The feeding device includes a separate unpacking cylinder and a conveying cylinder; wherein... The bottom of the unpacking cylinder is connected to the hopper, the top of the unpacking cylinder is provided with an expansion port for the vertical insertion of the conveying cylinder, and the unpacking cone is rotatably connected inside the unpacking cylinder; The top of the material conveying cylinder is rotatably connected to a cover. The two covers are each fitted with a rubber pad for clamping the top edge of the material bag at one closed end. A locking plate mechanism is also fitted between the two covers. A sealing ring is provided on the outer wall of the conveying cylinder, and multiple material support rods are provided at intervals on the lower part of the conveying cylinder. After the unpacking cone rotates to avoid the multiple material support rods, it extends into the inner cavity of the conveying cylinder, and the sealing ring seals the gap between the conveying cylinder and the unpacking cylinder. A breather is provided on the conveying cylinder and / or the unpacking cylinder.

2. The feeding device according to claim 1, characterized in that, The bottom opening of the conveying cylinder is provided, and the plurality of material support rods are circumferentially connected to the inner wall of the conveying cylinder, and the height of the plurality of material support rods is higher than the bottom opening.

3. The feeding device according to claim 2, characterized in that, Both of the covers are connected to the material conveying cylinder via a hinge shaft.

4. The feeding device according to claim 3, characterized in that, The locking mechanism is assembled on any one of the covers; When the two rubber pads are closed relative to each other, the locking plate mechanism clamps and fixes the two rubber pads.

5. The feeding device according to claim 1, characterized in that, The unpacking cylinder is equipped with a support inside, and the unpacking cone is rotatably connected to the support via a bushing.

6. The feeding device according to claim 5, characterized in that, The unpacking cone includes: a main shaft, a pointed conical section disposed at the top of the main shaft, and a plurality of circumferentially distributed blades on the main shaft; wherein, Each of the plurality of cutting blades has a cutting bevel that converges toward the pointed conical segment.

7. The feeding device according to claim 6, characterized in that, When the feeding cylinder is inserted vertically into the unpacking cylinder, the plurality of cutting blades avoid the plurality of material support bars.

8. The feeding device according to any one of claims 1 to 7, characterized in that, The clamping device can be any one of a robotic arm, a lifting device, or a clamping lifting device.

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