Separating and removing device for scrap iron in feed
By designing a portable iron filings removal device, which utilizes an adsorption rod and scraper structure, the problem of iron filings removal in small-scale farms has been solved, achieving low-cost and efficient iron filings removal and meeting the flexibility and economic needs of small-scale farms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-20
- Publication Date
- 2026-04-03
AI Technical Summary
The existing fixed iron filings removal devices are not suitable for small farms, resulting in high costs, high energy consumption, difficult maintenance and inconvenient operation, which cannot meet the flexibility and economic needs of small farms.
A portable iron filings removal device was designed, comprising an adsorption rod, a mounting rod, a scraper, and an electromagnet. It is operated by a long handle, and combined with a detachable structure and battery power, it enables flexible operation at multiple points. The scraper and notch structure are used to efficiently remove iron filings.
It achieves low-cost, low-energy iron filings removal, reduces labor intensity, is suitable for multi-point operation in small farms, avoids dependence on site and wiring, and improves the ease of operation and adaptability of the equipment.
Smart Images
Figure CN121775993A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of feed iron filings removal technology, specifically to an iron filings removal device for feed. Background Technology
[0002] Iron filings removal is crucial in feed processing because they usually originate from equipment wear or external contamination. When mixed into feed, they are easily ingested by animals, leading to digestive tract damage, internal organ perforation, or even death. They also accelerate the wear and tear on processing machinery. Removing iron filings ensures animal health and safety, improves feed quality, extends equipment life, and complies with food safety regulations.
[0003] Existing technologies have the following shortcomings: Iron filings removal devices commonly used in the feed industry are mostly fixed structures, typically permanently installed in the inspection tanks or key nodes of the conveyor belt in feed production lines. Their core design is to meet the iron removal needs of large-scale industrial production. These devices can efficiently process tons of feed raw materials through strong magnetic adsorption or electromagnetic separation technology, significantly reducing iron filings residue. However, this batch operation mode has significant limitations: First, large fixed devices require dedicated infrastructure, including reinforced installation bases, independent power systems, and regular maintenance access, resulting in high initial investment costs; second, the equipment occupies a large space, which, for small farms or family farms with limited space, not only encroaches on production areas but may also affect the flexibility of other process layouts.
[0004] More importantly, fixed devices are ill-suited to the operational characteristics of small-scale farming. These scenarios involve small-scale feed processing (often less than 1 ton per day) and dispersed work sites (such as multiple independent feeding units or temporary storage areas). Fixed equipment, unable to move, requires repeated transport of feed to a centralized processing point, increasing labor time and potentially causing secondary pollution. Furthermore, its high-power design leads to high energy consumption and maintenance costs, further burdening operations. Therefore, the industry urgently needs a new type of lightweight, mobile separation device—one that allows for flexible multi-point operation via handheld or simple support while maintaining low cost and ease of maintenance—truly meeting the core needs of small-scale farms for economy, adaptability, and ease of operation. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a device for removing iron filings from feed, solving the problem that current technologies are not suitable for small-scale farming operations.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an iron filings removal device for feed, comprising an adsorption rod for adsorbing iron filings in the feed and an insert rod for connecting the adsorption rod and serving as a support, wherein a fixing seat for strengthening the connection is provided in the middle of the insert rod, and a long handle for holding and operating is provided at the end of the fixing seat, and a scraper for removing iron filings or other impurities is sleeved on the outside of the adsorption rod.
[0007] The scraper end is provided with a guide rod for limiting the scraper's travel distance.
[0008] A fixed plate is fixedly connected to the end of the adsorption rod.
[0009] A buckle is provided at one end of the guide rod that passes through the fixed plate.
[0010] In some embodiments, the adsorption rod is a tubular electromagnet, and the adsorption and removal of iron filings are achieved by switching the power on and off. The adsorption rod is inserted into the interior of the insert rod and is detachably assembled by bolts.
[0011] In some embodiments, the long handle has a curved front end, and the curved portion is fixedly connected to a mounting base to form a rake-like structure.
[0012] In some embodiments, a spring is provided between the clamping plate and the suction rod to reset the scraper. When the scraper is subjected to force and reaches the end of its stroke, the spring is stretched and quickly rebounds after the scraper loses pressure, pulling the scraper back to its initial position.
[0013] In some embodiments, the adsorption rod has a ring near its end toward the axis to create a height difference on the smooth end face of the adsorption rod, thereby creating a notch for scraping off iron filings. Both ends of the notch are provided with bevels.
[0014] In some embodiments, a battery for powering the adsorption rod is provided on the outside of the long handle, and a relay for flexibly controlling the circuit is also provided on the outside of the long handle, with a wire provided at the end of the relay to connect to the adsorption rod; The long handle is also equipped with a controller for controlling the relay at its outer end.
[0015] In some embodiments, a perforated frame for enlarging the force-bearing surface of the scraper is fixedly provided at the top of the scraper, so that the operator can directly move the scraper with his foot.
[0016] In some embodiments, a rubber pad is provided at the bottom of the mounting base. The rubber pad is used to provide support in the middle when the device is erected as a whole, and to allow the scrapers on both sides to be lifted off the ground and kept suspended, so as to avoid wear and additional resistance when scraping the ground.
[0017] Compared with the prior art, the present invention provides a device for removing iron filings from feed: An iron filings removal device for feed involves an operator holding a long-handled grip and activating a relay via a controller to power an adsorption rod (activated by a tubular electromagnet). The adsorption rod is inserted obliquely into the feed accumulation area, and the operator moves the rod through the feed by pushing and pulling the rake-like grip to adsorb iron filings. After adsorption is complete, the operator removes the adsorption rod from the feed and then cuts off the power by triggering the controller, waiting for a few seconds for the electromagnetic field to completely dissipate. The device is then placed vertically (with the adsorption rod parallel to the ground), with a rubber pad supporting the main body of the device, suspending the scraper in the air. The operator pushes the perforated frame with their foot, causing the scraper to move laterally along the surface of the adsorption rod, and the scraped iron filings fall off under the oblique guidance of the notch. When the scraper moves to the limit position of the retaining plate, the attached material is completely removed. After releasing the scraper, a spring automatically pulls it back to the initial position, completing a single iron removal cycle. Through the above setup and process, the device achieves the following beneficial effects: The long-handled, rake-like curved design allows operators to stand while probing and pushing feed piles, significantly reducing labor intensity. The rubber pad support structure ensures stable upright operation, enabling one-handed support or hands-free operation. The electromagnetic adsorption system is powered by a portable battery, eliminating the need for an external power source. Combined with a detachable adsorption rod structure, it allows for rapid switching between dispersed feed storage points, completely eliminating the dependence on site and wiring inherent in traditional fixed equipment. This enables small-scale farms to achieve precise iron filings removal at extremely low cost. By adding a scraper structure and forming a limiting track with the guide rod and the buckle, it ensures stable contact with the surface of the adsorption rod during lateral scraping. The double-angled structure at the notch guides the iron filings to fall off smoothly, and with the electromagnet's delayed power-off mechanism (1-second dissipation period), the adsorption interference of residual magnetic field on impurities is completely eliminated. The foot-operated hollow frame and spring reset system form a human-machine collaborative closed loop—a single foot push completes the entire scraping stroke, and the scraper automatically springs back to its original position after being released. The entire process requires no bending over or manual intervention. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection position of the fixing seat in the middle of the adsorption rod in the horizontal position of the present invention; Figure 3 This is a schematic diagram of the connection position of the fixing seat and reinforcing rib of the present invention; Figure 4 This is a schematic diagram of the cross-section of the adsorption rod and the overall structure after the internal insert rod is inserted in this invention; Figure 5 This is a schematic diagram of the spring tension state after the scraper moves to the end of its stroke according to the present invention; Figure 6 This is a schematic diagram of the overall structure of the scraper and guide rod of the present invention; Figure 7 This is a schematic diagram showing the installation location of the battery and controller of the present invention.
[0019] In the diagram: 1. Adsorption rod; 2. Insert rod; 3. Fixing base; 4. Long handle; 5. Battery; 6. Relay; 7. Controller; 8. Wire; 9. Reinforcing rib; 10. Scraper; 11. Guide rod; 12. Fixing plate; 13. Buckle plate; 14. Spring; 15. Notch; 16. Hollow frame; 17. Rubber pad. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Please see Figure 1-7In this embodiment, an iron filings removal device for feed includes an adsorption rod 1 for adsorbing iron filings in the feed and an insert rod 2 for connecting the adsorption rod 1 and serving as a support. A fixing seat 3 is provided in the middle of the insert rod 2 to strengthen the connection. A long handle 4 for gripping and operation is provided at the end of the fixing seat 3. A scraper 10 for removing iron filings or other impurities is sleeved on the outside of the adsorption rod 1. By moving the scraper 10 laterally along the adsorption rod 1, the attachment can be quickly removed. The design of the long handle 4 makes the device more mobile and flexible than a fixed iron filings removal device, and can achieve precise removal of iron filings from small-scale, multi-unit feed accumulation points.
[0024] The adsorption rod 1 is a tubular electromagnet that adsorbs and removes iron filings by switching the power on and off. The adsorption rod 1 is inserted into the insert rod 2 and is detachably assembled by bolts.
[0025] The long handle 4 features a curved front end design (such as...). Figure 1 As shown in the figure, the curved part at the front end is fixedly connected to the fixed seat 3 and forms a rake-like structure. This design allows the operator to push and pull the adsorption rod 1 in the feed storage area with less effort.
[0026] To ensure the stability of the scraper 10 during lateral movement, a guide rod 11 is provided at the end of the scraper 10 to limit its travel. A fixed disk 12 is fixedly connected to the end of the adsorption rod 1, with the guide rod 11 passing through the fixed disk 12. Thus, when the scraper 10 moves radially along the adsorption rod 1, the travel is kept stable by the limiting effect of the guide rod 11. A retaining plate 13 is provided at one end of the guide rod 11 that passes through the fixed plate 12. The retaining plate 13 is upside down on the side of the fixed plate 12 to limit the radial travel of the scraper 10 in a single movement, prevent the guide rod 11 from disengaging from the fixed plate 12, and thereby further improve the stability of the scraper 10's travel.
[0027] A spring 14 is provided between the clamping plate 13 and the suction rod 1 to reset the scraper 10. Thus, when the scraper 10 is subjected to force and reaches the end of its stroke (e.g. Figure 5 (As shown in the diagram), spring 14 will be stretched and will quickly rebound after scraper 10 loses pressure. When spring 14 rebounds, it pulls scraper 10 back to its initial position (as shown in the diagram). Figure 4 (The state shown).
[0028] Since the surface of the adsorption rod 1 is smooth, the radial scraping of the scraper 10 cannot directly remove iron filings or impurities. Therefore, a notch 15 is opened at the end of the adsorption rod 1 towards the axis. The notch 15 is used to create a height difference on the smooth end face of the adsorption rod 1, thereby achieving the removal of iron filings. An angle is provided at both ends of the notch 15. The angle allows iron filings or impurities to transition effectively and makes the process smoother.
[0029] It should be noted that iron filings and feed residue are not removed solely by the scraper 10, but are removed in conjunction with the electromagnet.
[0030] To enable flexible use of the adsorption rod 1, a battery 5 for powering the adsorption rod 1 is installed on the outside of the long handle 4, and a relay 6 for flexible control of the circuit is also installed on the outside of the long handle 4. A wire 8 is installed at the end of the relay 6 to connect to the adsorption rod 1 (e.g., Figure 3 As shown in the figure, the adsorption rod 1 can flexibly switch between the power-on and power-off states.
[0031] A controller 7 for controlling the relay 6 is also provided at the outer end of the long handle 4 (e.g., Figure 7 (As shown).
[0032] It should be noted that the activation of scraper 10 is not synchronized with the instant the suction rod 1 is de-energized, but rather one second after the power is de-energized. The specific operating steps are as follows: The operator controls the position of the adsorption rod 1 by holding the long handle 4, and simultaneously controls the on / off state of the circuit of the adsorption rod 1 through the controller 7 and the relay 6. The adsorption rod 1 is inserted into the feed and moved to adsorb iron filings. After the iron filings are adsorbed, the operator first de-energizes the adsorption rod 1. One second later, the operator places the long handle 4 vertically, making the adsorption rod 1 parallel to the ground. At this time, the operator moves the scraper 10 along the outer surface of the adsorption rod 1 until the end of its stroke. During this process, the scraper 10 scrapes the feed and iron filings adhering to the outer surface of the adsorption rod 1 to the notch 15. Since the adsorption rod 1 is de-energized at this time, the iron filings and adhering materials naturally slide off. After the iron filings are completely scraped off, the operator releases the scraper 10, the spring 14 returns, and the scraper 10 resets.
[0033] A perforated frame 16 is fixedly installed on the top of the scraper 10 (e.g., Figure 6 As shown, the hollow frame 16 is used to expand the force-bearing surface of the scraper 10, so that the operator can directly move the scraper 10 with his feet without bending over.
[0034] A rubber pad 17 is provided at the bottom of the fixed base 3. The rubber pad 17 is used to provide support in the middle when the whole device is erected. This support structure allows the scrapers 10 on both sides to be lifted off the ground and kept suspended, thereby avoiding wear and additional resistance when scraping the ground.
[0035] In this embodiment, the operator holds the long-handled handle 4 and activates the relay 6 via the controller 7 to power the adsorption rod 1 (activating the tubular electromagnet). The adsorption rod is inserted obliquely into the feed accumulation area, and the adsorption rod 1 is moved in the feed by pushing and pulling the rake-like handle to adsorb iron filings. After adsorption is complete, the operator first removes the adsorption rod 1 from the feed, and then cuts off the power by triggering the controller 7, waiting for 1 second for the electromagnetic field to completely dissipate. Then, the device is placed vertically (adsorption rod 1 parallel to the ground), at which point the rubber pad 17 supports the main body of the device, suspending the scraper 10 in the air. The operator pushes the perforated frame 16 with their foot, causing the scraper 10 to move laterally along the surface of the adsorption rod 1, and the scraped iron filings fall off under the oblique guidance of the notch 15. When the scraper 10 moves to the limit position of the retaining plate 13, the attached material is completely removed. After releasing the scraper 10, the spring 14 automatically pulls it back to the initial position, completing a single iron removal cycle.
[0036] Workflow and Principle: The operator holds the long handle, activates the controller to power the relay, activating the adsorption rod (tubular electromagnet). After inserting the rod at an angle into the feed pile, the operator pushes and pulls the handle to move the rod and adsorb iron filings. Once complete, the rod is removed, triggering the controller to cut off power and wait one second for the magnetic field to dissipate. The device is then placed vertically, with the rubber pad supporting the main body to suspend the scraper. The operator pushes the perforated frame with their foot, causing the scraper to move laterally along the surface of the adsorption rod. The iron filings are guided off at an angle by the notch and completely removed at the limit position of the retaining plate. After releasing the scraper, the spring automatically resets it, completing one iron removal cycle.
[0037] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for removing iron filings from feed, comprising an adsorption rod (1) for adsorbing iron filings from the feed and an insert rod (2) for connecting the adsorption rod (1) and serving as a support, characterized in that: A fixing seat (3) for strengthening the connection is provided in the middle of the insert rod (2), and a long handle (4) for gripping operation is provided at the end of the fixing seat (3). A scraper (10) for removing iron filings or other impurities is sleeved on the outside of the adsorption rod (1). The scraper (10) is provided with a guide rod (11) at its end to limit the travel of the scraper (10). A fixed disk (12) is fixedly connected to the end of the adsorption rod (1); A buckle (13) is provided at one end of the guide rod (11) that passes through the fixed plate (12).
2. The iron filings removal device for feed according to claim 1, characterized in that: The adsorption rod (1) is a tubular electromagnet, and it adsorbs and removes iron filings by switching the power on and off. The adsorption rod (1) is inserted into the insert rod (2) and is detachably assembled by bolts.
3. The iron filings removal device for feed according to claim 1, characterized in that: The long handle (4) adopts a front-end curved design, and the curved part is fixedly connected to the fixing seat (3) to form a rake-like structure.
4. The iron filings removal device for feed according to claim 1, characterized in that: A spring (14) is provided between the clamping plate (13) and the suction rod (1) to reset the scraper (10). When the scraper (10) is subjected to force and travels to the end of its stroke, the spring (14) will be stretched and will quickly rebound after the scraper (10) loses pressure. When the spring (14) rebounds, it will pull the scraper (10) back to its initial position.
5. The iron filings removal device for feed according to claim 4, characterized in that: The adsorption rod (1) has a ring of openings near the end towards the axis to create a height difference on the smooth end face of the adsorption rod (1) and thereby achieve a notch (15) for scraping off iron filings. Both ends of the notch (15) are provided with bevels.
6. The iron filings removal device for feed according to claim 1, characterized in that: A battery (5) for powering the adsorption rod (1) is provided on the outside of the long handle (4). A relay (6) for flexibly controlling the circuit is also provided on the outside of the long handle (4). A wire (8) is provided at the end of the relay (6) to connect to the adsorption rod (1). The long handle (4) is also provided with a controller (7) for controlling the relay (6) at its outer end.
7. The iron filings removal device for feed according to claim 1, characterized in that: The top of the scraper (10) is fixedly provided with a force-bearing surface for expanding the scraper (10), so that the operator can directly move the hollow frame (16) of the scraper (10) with his foot.
8. The iron filings removal device for feed according to claim 1, characterized in that: A rubber pad (17) is provided at the bottom of the fixed base (3). The rubber pad (17) is used to provide support in the middle when the device is erected as a whole, and to allow the scrapers (10) on both sides to be lifted off the ground and kept suspended, so as to avoid wear and additional resistance when scraping the ground.