A feeding device with demagnetization function

Abstract

The utility model discloses a kind of feeding devices with demagnetization function, including rack, feeding hopper and demagnetization component.Rack is equipped with blanking pipe, blanking pipe has slagging port and discharge port, blanking pipe is rotatably connected with flap, flap rotation can make flap switch between plugging slagging port and plugging discharge port.Feeding hopper is located above rack, the discharge port of feeding hopper is connected with the feed inlet of blanking pipe, the sidewall of feeding hopper is equipped with multiple powder scraping pipe sleeves.Demagnetization component includes multiple magnetic bar groups and multiple driving components, multiple magnetic bar groups are spaced apart along up-down direction, multiple magnetic bar groups and multiple driving components one-to-one correspondence, magnetic bar group includes multiple demagnetization bars spaced apart along left-right direction, multiple demagnetization bars and multiple powder scraping pipe sleeves one-to-one correspondence, demagnetization bar is arranged and slidably connected in powder scraping pipe sleeve;Driving component can drive the multiple demagnetization bars of magnetic bar group move along front-back direction, so that demagnetization bar enters feeding hopper or leaves feeding hopper through powder scraping pipe sleeve.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology, and in particular to a feeding device with demagnetization function. Background Technology

[0002] With the development of battery technology, the requirements for metal particle foreign matter in materials are becoming increasingly stringent. While methods such as reducing equipment wear and adding iron separators at the back end of production are generally used to strictly control metal foreign particles in the production process, they cannot remove inherent magnetic substances in the raw materials or those introduced during transport. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a feeding device with a demagnetizing function.

[0004] This utility model embodiment provides a feeding device with demagnetization function, the feeding device with demagnetization function includes:

[0005] The frame is equipped with a feeding pipe, which has a slag discharge port and a material discharge port. A flap is rotatably connected inside the feeding pipe. The flap can switch between blocking the slag discharge port and blocking the material discharge port by rotating.

[0006] A feeding hopper is located above the frame. The discharge port of the feeding hopper is connected to the inlet of the feeding pipe. The side wall of the feeding hopper is provided with multiple powder scraping sleeves.

[0007] The demagnetizing assembly includes multiple magnetic rod groups and a driving device. The multiple magnetic rod groups are spaced apart in the vertical direction. Each magnetic rod group includes multiple demagnetizing rods spaced apart in the horizontal direction. Each demagnetizing rod corresponds to a multiple powder scraping tube sleeve. The demagnetizing rods pass through and are slidably connected to the powder scraping tube sleeves. The driving device can drive the multiple demagnetizing rods of the multiple magnetic rod groups to move in the front-back direction, so that the demagnetizing rods enter the feeding hopper or leave the feeding hopper through the powder scraping tube sleeves.

[0008] According to some embodiments of the present invention, the driving device includes multiple driving components, and each magnetic rod group is connected to one of the driving components. The driving component can drive multiple demagnetizing rods corresponding to the magnetic rod group to move synchronously in the front-back direction. The driving component includes a first telescopic cylinder and a connecting rod. The connecting rod is provided with multiple support rods, and the multiple support rods correspond one-to-one with the multiple demagnetizing rods. One end of the support rod is fixedly connected to one end of the demagnetizing rod. The first telescopic cylinder is installed on the frame and is used to drive the connecting rod to move in the front-back direction.

[0009] According to some embodiments of the present invention, the front and rear side walls of the feeding hopper are provided with multiple powder scraping sleeves, the front end of the demagnetizing rod is inserted through and slidably connected to the powder scraping sleeve located on the front side wall of the feeding hopper, and the rear end of the demagnetizing rod is inserted through and slidably connected to the powder scraping sleeve located on the rear side wall of the feeding hopper.

[0010] According to some embodiments of this utility model, a buffer spring is provided on the frame, and the upper end of the buffer spring is connected to the feeding hopper.

[0011] According to some embodiments of the present invention, the outer wall of the feeding hopper is provided with a vibrating motor, the inner peripheral wall of the feeding hopper is fixedly installed with an air-assisted disc, and the discharge port of the feeding hopper is provided with a discharge valve.

[0012] According to some embodiments of this utility model, the discharge port of the feeding hopper and the inlet of the feeding pipe are connected by a flexible connecting pipe.

[0013] According to some embodiments of the present invention, the frame is provided with a weighing module, which is used to support and weigh the feeding hopper.

[0014] According to some embodiments of the present invention, the frame is provided with a second telescopic cylinder, the cylinder body of the second telescopic cylinder is hinged to the frame, and a swing rod is hinged to the drive end of the second telescopic cylinder, one end of the swing rod being fixedly connected to the flip plate.

[0015] According to some embodiments of the present invention, the inner peripheral wall of the feed pipe is provided with a first purging component and a second purging component, both of which are located above the flap; when the flap blocks the slag discharge port, the air outlet of the first purging component faces the flap; when the flap blocks the discharge port, the air outlet of the second purging component faces the flap.

[0016] According to some embodiments of the present invention, the feeding hopper is rotatably connected to a flip cover, which can be rotated to block or open the feeding port of the feeding hopper.

[0017] The feeding device with demagnetization function according to the embodiments of this utility model has at least the following technical effects:

[0018] 1. When material needs to be discharged, rotate the flap to block the slag discharge port. The drive component drives the demagnetizing rod to move into the feeding hopper. When the material enters the feeding hopper, it passes through multiple demagnetizing rods of multiple magnetic rod groups, so that the magnetic material carried by the material is attracted to the demagnetizing rods. The material then enters the feeding pipe through the discharge port of the feeding hopper and is discharged through the discharge port.

[0019] 2. When it is necessary to clean the magnetic rod, rotate the flap to block the discharge port. The drive component drives the demagnetizing rod to move in the front and back direction, so that the demagnetizing rod moves back and forth between leaving the feeding hopper and entering the feeding hopper. During this process, the scraper sleeve scrapes the surface of the demagnetizing rod, so that the magnetic material adsorbed on the demagnetizing rod is detached from the demagnetizing rod and falls downward. The magnetic material then enters the discharge pipe through the discharge port of the feeding hopper and is discharged through the slag discharge port.

[0020] 3. The air-assisted disc is connected to an external air source. The air-assisted disc can blow air into the feeding hopper, thereby dispersing the material, preventing blockage, increasing the contact area between the material and the demagnetizing rod, and improving the demagnetizing effect. When the feeding hopper vibrates, the flexible connecting pipe can expand and contract with the feeding hopper, thereby ensuring a stable and sealed connection between the feeding hopper's outlet and the feed pipe's inlet.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a feeding device with demagnetization function according to some embodiments of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of a feeding device with demagnetization function according to some embodiments of this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of a feeding device with demagnetization function according to some embodiments of this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of a feeding device with demagnetization function according to some embodiments of this utility model;

[0027] Figure 5 This is a partial structural schematic diagram of a feeding device with demagnetization function according to some embodiments of this utility model;

[0028] Figure 6 This is a partial structural schematic diagram of a feeding device with demagnetization function according to some embodiments of this utility model.

[0029] Icon labels:

[0030] Frame 100; Feed pipe 110; Slag discharge port 111; Material discharge port 112; Flip plate 120; Buffer spring 130; Second telescopic cylinder 140; Swing rod 141; First purging assembly 151; Second purging assembly 152; Rotary rotary valve 160; Pulse dust collector 170; Tilting cylinder 180;

[0031] Feeding hopper 200; scraper sleeve 210; vibrating motor 220; airflow aid disc 230; discharge valve 240; flexible connecting pipe 250; weighing module 260; flip cover 270;

[0032] Demagnetizing assembly 300; magnetic rod assembly 310; demagnetizing rod 320; driving component 330; first telescopic cylinder 340; connecting rod 350; support rod 360. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0038] According to some embodiments of this utility model, refer to Figures 1 to 6The feeding device with demagnetization function includes a frame 100, a feeding hopper 200, and a demagnetization assembly 300. The frame 100 is equipped with a discharge pipe 110, which is a three-way pipe. The inlet of the discharge pipe 110 is located at the upper end. The discharge pipe 110 has a slag discharge port 111 and a discharge port 112. A flap 120 is rotatably connected inside the discharge pipe 110. The flap 120 can rotate, allowing it to switch between blocking the slag discharge port 111 and blocking the discharge port 112. The feeding hopper 200 is located above the frame 100, with its outlet facing downwards. The outlet of the feeding hopper 200 is connected to the inlet of the discharge pipe 110. Multiple scraper sleeves 210 are provided on the side wall of the feeding hopper 200. The demagnetizing assembly 300 includes multiple magnetic rod groups 310 and multiple driving components 330. The multiple magnetic rod groups 310 are spaced apart in the vertical direction, and each magnetic rod group 310 corresponds to one of the multiple driving components 330. Each magnetic rod group 310 includes multiple demagnetizing rods 320 spaced apart in the horizontal direction. Each demagnetizing rod 320 corresponds to one of multiple powder scraping sleeves 210. The demagnetizing rods 320 pass through and are slidably connected to the powder scraping sleeves 210. The powder scraping sleeves 210 are elastic. The side wall of the feeding hopper 200 has multiple mounting holes for installing the powder scraping sleeves 210. The powder scraping sleeves 210 are inserted into the mounting holes, and the outer peripheral wall of the powder scraping sleeves 210 is tightly fitted to the hole wall of the mounting hole in the feeding hopper 200. The powder scraping sleeves 210 are made of PTFE (polytetrafluoroethylene) to avoid friction with the magnetic rods and generation of metal shavings. The inner peripheral wall of the powder scraping sleeves 210 is tightly fitted to the outer peripheral wall of the demagnetizing rods 320. The driving component 330 can drive the multiple demagnetizing rods 320 of the magnetic rod assembly 310 to move in the front-back direction, so that the demagnetizing rods 320 enter or leave the feeding hopper 200 through the scraper sleeve 210. When the demagnetizing rods 320 and the scraper sleeve 210 move relative to each other, the inner peripheral wall of the scraper sleeve 210 is tightly attached to the demagnetizing rods 320, and the scraper sleeve 210 can scrape away the magnetic material located on the outer peripheral wall of the demagnetizing rods 320.

[0039] Preferably, in the adjacent upper and lower layers of magnetic rod groups 310, the multiple demagnetizing rods 320 in the upper layer are staggered with the multiple demagnetizing rods 320 in the lower layer, thereby increasing the contact area between the material and the demagnetizing rods 320 when it falls from top to bottom.

[0040] Preferably, in the adjacent upper and lower magnetic rod groups 310, the driving component 330 corresponding to the upper magnetic rod group 310 pulls the demagnetizing rod 320 forward to scrape off the powder, and the driving component 330 corresponding to the lower magnetic rod group 310 pulls the demagnetizing rod 320 backward to scrape off the powder. This staggered powder scraping avoids the accumulation of magnetic materials.

[0041] When material needs to be discharged, rotate the flap 120 to block the slag discharge port 111, as per [reference needed]. Figure 1 , Figure 1The flap 120 is shown blocking the slag discharge port 111. The drive unit 330 drives the demagnetizing rod 320 to move into the feeding hopper 200. When the material enters the feeding hopper 200, it passes through the multiple demagnetizing rods 320 of the multiple magnetic rod group 310, so that the magnetic material carried by the material is attracted to the demagnetizing rod 320. The material then enters the discharge pipe 110 through the discharge port of the feeding hopper 200 and is discharged through the discharge port 112.

[0042] When cleaning the magnetic rod is required, rotate the flap 120 to block the discharge port 112, as per [reference needed]. Figure 2 , Figure 2 The flap 120 is shown blocking the discharge port 112. The drive unit 330 drives the demagnetizing rod 320 to move in the front-to-back direction, so that the demagnetizing rod 320 moves back and forth between leaving the feeding hopper 200 and entering the feeding hopper 200. During this process, the scraper sleeve 210 scrapes the surface of the demagnetizing rod 320, so that the magnetic material adsorbed on the demagnetizing rod 320 is detached from the demagnetizing rod 320 and falls downward. The magnetic material then enters the discharge pipe 110 through the discharge port of the feeding hopper 200 and is discharged through the slag discharge port 111.

[0043] The feeding device with demagnetization function can remove magnetic substances carried by the material. When the magnetic substances on the demagnetizing rod 320 become too much after a period of operation and affect the demagnetization effect, the magnetic substances on the demagnetizing rod 320 can be removed by moving the demagnetizing rod 320 and discharged through the slag discharge port 111.

[0044] Preferred, refer to Figure 1 and Figure 2 A rotary valve 160 is installed at the discharge port 112. After demagnetization, the material enters the rotary valve 160 through the discharge port 112. The rotary valve 160 is driven by a variable frequency motor, which can control the feeding speed to meet the needs of scenarios requiring control of the feeding volume per unit time. Simultaneously, the residence time of the material in the feeding pipe 110 can be controlled by controlling the feeding speed. A pulse dust collector 170 is also installed on the frame 100. The pulse dust collector 170 can treat dust generated during the entire feeding process, achieving dust-free feeding. Understandably, during the feeding process, the material will be stirred up, causing dust in the surrounding air. The pulse dust collector 170 can suck up the surrounding dust-laden gas for dust removal and then discharge clean gas, thereby ensuring that the air around the frame 100 is clean and dust-free.

[0045] Preferably, multiple scraper sleeves 210 are connected together by a mesh braided rope. When replacing or disassembling, multiple scraper sleeves 210 can be quickly removed from the feeding hopper 200 by pulling the mesh braided rope. When reinstalling them back into the feeding hopper 200, it is also convenient to install them at a fixed point according to the position of the mesh braided rope.

[0046] According to some embodiments of this utility model, refer to Figures 4 to 6 The driving component 330 includes a first telescopic cylinder 340 and a connecting rod 350. The connecting rod 350 has multiple support rods 360, each corresponding to a multiple demagnetizing rod 320. One end of each support rod 360 is fixedly connected to one end of each demagnetizing rod 320. The first telescopic cylinder 340 is mounted on the frame 100 and is used to drive the connecting rod 350 to move in the front-back direction. Preferably, the support rods 360 extend in the front-back direction, and their rear ends are fixedly connected to the front ends of the demagnetizing rods 320. The connecting rod 350 extends in the left-right direction, and the front ends of the support rods 360 are fixedly connected to the rear side wall of the connecting rod 350. The driving end of the first telescopic cylinder 340 faces forward and is fixedly connected to the connecting rod 350.

[0047] Furthermore, refer to Figures 3 to 6 The front and rear side walls of the feeding hopper 200 are provided with multiple scraper sleeves 210. The length of the scraper sleeve 210 is less than the length of the demagnetizing rod 320. There is a certain distance between two corresponding scraper sleeves 210 in the front-rear direction. The front end of the demagnetizing rod 320 passes through and is slidably connected to the scraper sleeve 210 located on the front side wall of the feeding hopper 200, and the rear end of the demagnetizing rod 320 passes through and is slidably connected to the scraper sleeve 210 located on the rear side wall of the feeding hopper 200.

[0048] Understandably, referring to Figures 4 to 6 , Figure 4 The diagram illustrates the normal operation of the demagnetizing rod 320. When it is necessary to clean the magnetic material on the demagnetizing rod 320, the first telescopic cylinder 340 drives the connecting rod 350 to move forward, thereby moving multiple demagnetizing rods 320 forward. This causes the middle part of the demagnetizing rod 320 to move to the scraper sleeve 210 located on the front side wall of the feeding hopper 200, and the rear end of the demagnetizing rod 320 to disengage from the scraper sleeve 210 located on the rear side wall of the feeding hopper 200. Then, the first telescopic cylinder 340 drives the connecting rod 350 to move backward, causing the rear end of the demagnetizing rod 320 to insert into the scraper sleeve 210 and continue to move backward, causing the middle part of the demagnetizing rod 320 to move to the scraper sleeve 210 located on the rear side wall of the feeding hopper 200, and the front end of the demagnetizing rod 320 to disengage from the scraper sleeve 210 located on the front side wall of the feeding hopper 200. This cycle continues until the magnetic material on the outer peripheral wall of the demagnetizing rod 320 is completely scraped off. The scraper sleeves 210 located on the front and rear side walls work together to reduce the unidirectional stroke of the demagnetizing rod 320, thereby reducing the space occupied by the entire equipment in the front-to-back direction.

[0049] According to some embodiments of this utility model, refer to Figure 1A buffer spring 130 is provided on the frame 100, and the upper end of the buffer spring 130 is connected to the feeding hopper 200. It can be understood that the buffer spring 130 can be used to support and buffer the feeding hopper 200, thereby preventing the vibration generated by the feeding hopper 200 during the receiving of materials or the movement of the demagnetizing rod 320 from being transmitted to the frame 100.

[0050] According to some embodiments of this utility model, a vibration motor 220 is provided on the outer wall of the feeding hopper 200, and a flow-aiding air disc 230 is fixedly installed on the inner peripheral wall of the feeding hopper 200. A discharge valve 240 is provided at the discharge port of the feeding hopper 200. The vibration motor 220 is used to vibrate the feeding hopper 200 to disperse the material, ensuring that the material can contact the demagnetizing rod 320 over a large area, thereby improving the demagnetization effect and preventing material bridging that could cause blockage, facilitating continuous material feeding. The vibration motor 220 works in conjunction with a buffer spring 130, which can reduce the vibration transmitted from the feeding hopper 200 to the frame 100, preventing it from affecting other equipment. The flow-aiding air disc 230 is connected to an external air source and can blow air into the feeding hopper 200, thereby dispersing the material, preventing blockage, increasing the contact area between the material and the demagnetizing rod 320, and improving the demagnetization effect. The opening or closing of the discharge valve 240 can block or open the discharge port of the feeding hopper 200.

[0051] Preferred, refer to Figure 1 The discharge port of the feeding hopper 200 and the inlet of the discharge pipe 110 are connected by a flexible connecting pipe 250. The flexible connecting pipe 250 can extend and retract in the vertical direction. When the feeding hopper 200 vibrates, the flexible connecting pipe 250 can extend and retract in coordination with the feeding hopper 200, thereby ensuring a stable and sealed connection between the discharge port of the feeding hopper 200 and the inlet of the discharge pipe 110. In this embodiment, the flexible connecting pipe 250 is a metal corrugated pipe, a plastic corrugated pipe, or an anti-static fabric flexible hose.

[0052] According to some embodiments of this utility model, refer to Figure 1 The frame 100 is equipped with a weighing module 260, which supports and weighs the feeding hopper 200. It should be noted that when the weighing module 260 supports the feeding hopper 200, the lower end of the buffer spring 130 is connected to the frame 100, and the upper end of the buffer spring 130 is at a certain distance from the feeding hopper 200. The buffer spring 130 does not provide support for the feeding hopper 200, thus avoiding affecting the weighing accuracy of the weighing module 260. However, if the feeding hopper 200 vibrates excessively, the upper end of the buffer spring 130 will then abut against the feeding hopper 200, thereby restricting the movement of the feeding hopper 200.

[0053] According to some embodiments of this utility model, refer to Figure 1 and Figure 2The frame 100 is equipped with a second telescopic cylinder 140. The cylinder body of the second telescopic cylinder 140 is hinged to the frame 100, and the driving end of the second telescopic cylinder 140 faces downward. The driving end of the second telescopic cylinder 140 is hinged to one end of the swing rod 141. The flap 120 is rotatably connected to the feed pipe 110 via a rotating shaft. The swing rod 141 is located outside the feed pipe 110, and the other end of the swing rod 141 is fixedly connected to the rotating shaft of the flap 120. When the second telescopic cylinder 140 extends or retracts, it can drive the swing rod 141 to rotate, thereby driving the flap 120 to rotate.

[0054] According to some embodiments of this utility model, refer to Figure 2 The inner circumferential wall of the feed pipe 110 is provided with a first purging assembly 151 and a second purging assembly 152. Both the first purging assembly 151 and the second purging assembly 152 are connected to an external air source and are located above the flap 120. When the flap 120 blocks the slag discharge port 111, the air outlet of the first purging assembly 151 faces the flap 120, thereby blowing the material adhering to the pipe wall of the feed pipe 110 and the material adhering to the flap 120 to the discharge port 112. When the flap 120 blocks the discharge port 112, the air outlet of the second purging assembly 152 faces the flap 120, thereby blowing the magnetic material adhering to the pipe wall of the feed pipe 110 and the material adhering to the flap 120 to the discharge port 112.

[0055] In one embodiment, when the first purging assembly 151 or the second purging assembly 152 is activated to purge the feed pipe 110, the feed valve 240 is closed, thereby preventing materials or magnetic substances from entering the feed hopper 200 upwards under the influence of airflow.

[0056] According to some embodiments of this utility model, refer to Figure 1 The feeding hopper 200 is rotatably connected to a flip cover 270. The flip cover 270 can block or open the feed inlet of the feeding hopper 200 by rotating. The feeding hopper 200 is equipped with a tilting cylinder 180, which is used to drive the flip cover 270 to rotate.

[0057] The operation of the feeding device with demagnetization function includes:

[0058] Rotating the flap 120 blocks the slag discharge port 111. The drive component 330 drives the demagnetizing rod 320 to move into the feeding hopper 200. The vibration motor 220, the flow-aiding air disc 230, and the discharge valve 240 are turned on. When the material enters the feeding hopper 200, it passes through the multiple demagnetizing rods 320 of the multiple magnetic rod groups 310, causing the magnetic material carried by the material to be attracted to the demagnetizing rods 320. The material then enters the discharge pipe 110 through the discharge port of the feeding hopper 200 and is discharged through the discharge port 112. After the weighing module measures that the feeding hopper 200 is lower than the set value, it indicates that the feeding is complete. After waiting for the set first time, the vibration motor 220, the flow-aiding air disc 230, and the discharge valve 240 are closed, and the first purging component 151 is turned on to blow the material in the discharge pipe 110 toward the discharge port 112. Then, rotating the flap 120 blocks the discharge port 112. The vibration motor 220, the air-assisted disc 230, and the discharge valve 240 are opened. The first telescopic cylinder 340 drives the connecting rod 350 to move forward, thereby moving multiple demagnetizing rods 320 forward. The middle of each demagnetizing rod 320 moves to the scraper sleeve 210 located on the front side wall of the feeding hopper 200. The rear end of the demagnetizing rod 320 disengages from the scraper sleeve 210 located on the rear side wall of the feeding hopper 200. Then, the first telescopic cylinder 340 drives the connecting rod 350 to move backward, causing the rear end of each demagnetizing rod 320 to insert into the scraper sleeve 210 and continue moving backward until the middle of the demagnetizing rod 320 reaches its designated position. At the scraper sleeve 210 on the rear side wall of the feeding hopper 200, the front end of the demagnetizing rod 320 detaches from the scraper sleeve 210 located on the front side wall of the feeding hopper 200. This cycle continues until the magnetic material on the outer peripheral wall of the demagnetizing rod 320 is completely scraped off. Under the vibration of the vibrating motor 220 and the blowing of the flow-aiding air disc 230, the magnetic material enters the discharge pipe 110 through the discharge port of the feeding hopper 200 and is discharged through the slag discharge port 111. Then, the vibrating motor 220, the flow-aiding air disc 230 and the discharge valve 240 are closed, and the second purging assembly 152 is opened to blow the magnetic material in the discharge pipe 110 toward the slag discharge port 111.

[0059] In one embodiment, a weighing module 260 is designed below the feeding hopper 200 to record the weight of the material inside the feeding hopper 200. The demagnetizing system includes a demagnetizing rod 320, a driving component 330, and a first telescopic cylinder 340. The discharging system includes a first blowing assembly 151, a second blowing assembly 152, a rotary valve 160, a pulse dust collector 170, a tilting cylinder 180, a vibrating motor 220, a flow-aiding air disc 230, and a discharging valve 240. The weighing module 260, the demagnetizing system, and the discharging system are interlocked and controlled by corresponding PLC control components.

[0060] The weighing module 260 weighs the feeding hopper 200. It is set to continue feeding when the total weight of the material inside the feeding hopper 200 is less than 10 kg (the specific weight setting can be modified according to actual production needs), thus ensuring that all normal material in the feeding hopper 200 has been discharged. After waiting 30 seconds, the feeding valve 240 closes. The second purging component 152 is set to purge for 1 second, with a purging interval of 1 second and 3 purging cycles (the purging time and number of purging cycles can be adjusted via PLC). The rotary valve 160 continues to run for 5 seconds before stopping, ensuring that there is no material left in the normal feeding pipe 110. After the material is discharged, the discharge valve 240 is opened, and the flap 120 is rotated to block the discharge port 112 and open the slag discharge port 111. Then, the first telescopic cylinder 340 pulls out the demagnetizing rod 320. During the process of pulling out the demagnetizing rod 320, the high magnetic material and magnetic foreign objects on the demagnetizing rod 320 will be intercepted inside the hopper by the powder scraper sleeve 210. After the first telescopic cylinder 340 completes the extraction of the demagnetizing rod 320, the equipment is set to run continuously for 5 minutes (time adjustable) to ensure that the high magnetic material slag is discharged along the slag discharge port 111. After the high magnetic slag discharge is completed, the first telescopic cylinder 340 extends inward to send the demagnetizing rod 320 back to the hopper. The discharge valve 240 closes again, and the first purging assembly 151 is turned on to purge the high magnetic slag. The purging time is set to 1 second, the purging interval is 1 second, and the number of purgings is 3 (the purging time and the number of purgings can be adjusted by the PLC) to ensure that the high magnetic slag is completely discharged through the slag discharge port 111.

[0061] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A feeding device with demagnetization function, characterized in that, include: The frame (100) is provided with a feeding pipe (110), the feeding pipe (110) has a slag discharge port (111) and a discharge port (112), and a flap (120) is rotatably connected inside the feeding pipe (110). The flap (120) can switch between blocking the slag discharge port (111) and blocking the discharge port (112) by rotating. The feeding hopper (200) is located above the frame (100). The discharge port of the feeding hopper (200) is connected to the inlet of the feeding pipe (110). The side wall of the feeding hopper (200) is provided with multiple powder scraping sleeves (210). The demagnetizing assembly (300) includes multiple magnetic rod groups (310) and a driving device. The multiple magnetic rod groups (310) are spaced apart in the vertical direction. Each magnetic rod group (310) includes multiple demagnetizing rods (320) spaced apart in the horizontal direction. Each demagnetizing rod (320) corresponds one-to-one with a multiple powder scraping tube sleeve (210). The demagnetizing rods (320) pass through and are slidably connected to the powder scraping tube sleeve (210). The driving device can drive the multiple demagnetizing rods (320) of the multiple magnetic rod groups (310) to move in the front-back direction, so that the demagnetizing rods (320) enter the feeding hopper (200) or leave the feeding hopper (200) through the powder scraping tube sleeve (210).

2. The feeding device with demagnetization function according to claim 1, characterized in that, The driving device includes multiple driving components (330), and each magnetic rod group (310) is connected to a driving component (330). The driving component (330) can drive multiple demagnetizing rods (320) corresponding to the magnetic rod group (310) to move synchronously in the front-back direction. The driving component (330) includes a first telescopic cylinder (340) and a connecting rod (350). The connecting rod (350) is provided with multiple support rods (360), and the multiple support rods (360) correspond one-to-one with the multiple demagnetizing rods (320). The support rods (360) are fixedly connected to one end of the demagnetizing rods (320). The first telescopic cylinder (340) is installed on the frame (100) and is used to drive the connecting rod (350) to move in the front-back direction.

3. The feeding device with demagnetization function according to claim 2, characterized in that, The front and rear side walls of the feeding hopper (200) are provided with multiple powder scraping sleeves (210). The front end of the demagnetizing rod (320) is inserted through and slidably connected to the powder scraping sleeve (210) located on the front side wall of the feeding hopper (200), and the rear end of the demagnetizing rod (320) is inserted through and slidably connected to the powder scraping sleeve (210) located on the rear side wall of the feeding hopper (200).

4. The feeding device with demagnetization function according to claim 1, characterized in that, The frame (100) is provided with a buffer spring (130), the upper end of which is connected to the feeding hopper (200).

5. The feeding device with demagnetization function according to claim 4, characterized in that, The outer wall of the feeding hopper (200) is provided with a vibration motor (220), the inner peripheral wall of the feeding hopper (200) is fixedly installed with a flow-aiding air disc (230), and the discharge port of the feeding hopper (200) is provided with a discharge valve (240).

6. The feeding device with demagnetization function according to claim 4, characterized in that, The discharge port of the feeding hopper (200) and the inlet of the feeding pipe (110) are connected by a flexible connecting pipe (250).

7. The feeding device with demagnetization function according to claim 1, characterized in that, The frame (100) is provided with a weighing module (260), which is used to support and weigh the feeding hopper (200).

8. The feeding device with demagnetization function according to claim 1, characterized in that, The frame (100) is provided with a second telescopic cylinder (140), the cylinder body of the second telescopic cylinder (140) is hinged to the frame (100), and the drive end of the second telescopic cylinder (140) is hinged to a swing rod (141), one end of the swing rod (141) is fixedly connected to the flip plate (120).

9. The feeding device with demagnetization function according to claim 1, characterized in that, The inner peripheral wall of the feed pipe (110) is provided with a first purging assembly (151) and a second purging assembly (152), both of which are located above the flap (120). When the flap (120) blocks the slag discharge port (111), the air outlet of the first purging assembly (151) faces the flap (120). When the flap (120) blocks the discharge port (112), the air outlet of the second purging assembly (152) faces the flap (120).

10. The feeding device with demagnetization function according to claim 1, characterized in that, The feeding hopper (200) is rotatably connected to a flip cover (270), which can block or open the feed inlet of the feeding hopper (200) by rotating.

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