Cylindrical magnet screening and feeding mechanism
By designing a cylindrical magnet screening and feeding mechanism and utilizing automated devices such as electric telescopic rods and hinge plates, automated length screening and conveying of magnetic rods has been achieved, solving the problem of low efficiency in traditional manual screening and improving screening efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI DAJINHUA MAGNETIC MATERIAL CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
AI Technical Summary
The traditional cylindrical magnet screening process relies on manual operation, which results in low efficiency and instability, and cannot meet the needs of modern large-scale production.
A cylindrical magnet screening and feeding mechanism was designed, including a frame, a first conveying pipe, a second conveying pipe and a screening pipe. It utilizes automated devices such as an electric telescopic rod, a push plate, a hinge plate and a clamping assembly to achieve length screening and conveying of magnetic rods. By controlling the falling and clamping of the magnetic rods, it automatically separates magnetic rods that meet the standards and those that do not.
The system enables automated screening of magnetic rod lengths, improving screening efficiency, ensuring the stability and consistency of screening results, and meeting the needs of modern large-scale production.
Smart Images

Figure CN224529812U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of magnet screening, and in particular to a cylindrical magnet screening and feeding mechanism. Background Technology
[0002] In the magnet manufacturing process, cylindrical magnets, due to their specific shape and properties, are widely used and can be called magnetic rods. To ensure the quality of the final product, the screening process is an indispensable part, the main purpose of which is to remove defective magnetic rods that do not meet the standard length.
[0003] Traditional screening methods rely primarily on manual operation. Workers must first visually inspect and manually remove magnetic bars that do not meet length standards, then feed these screened bars into a vibratory feeder for further processing and transport. However, this manual screening method is not only inefficient but also prone to instability due to human factors. Clearly, this method cannot meet the needs of modern large-scale production. Although automation technology has developed rapidly worldwide and been widely applied in many production fields, there are still technological gaps in the automatic screening of cylindrical magnets. Utility Model Content
[0004] To improve the efficiency of traditional cylindrical magnet length screening processes that rely on manual screening, this application provides a cylindrical magnet screening and feeding mechanism.
[0005] This application provides a cylindrical magnet screening and feeding mechanism, which adopts the following technical solution: A cylindrical magnet screening and feeding mechanism includes a frame, a first conveying pipe, a second conveying pipe, and a screening pipe. The first and second conveying pipes are both vertically arranged, and the screening pipe is positioned between the first and second conveying pipes and coaxially with both. The screening pipe has a discharge port on one side and a first connecting port on the other side. A first telescopic rod passes through the first connecting port. The first telescopic rod is electrically operated and fixedly mounted on the frame. The movable end of the first telescopic rod is located inside the screening pipe and is fixedly connected to a push plate. A baffle assembly is provided at the bottom of the screening pipe to limit the magnetic rod within the screening pipe.
[0006] By adopting the above technical solution, when the magnetic rod is being conveyed, it can be transported to the screening pipe through the first conveying pipe, and then to the next station through the second conveying pipe. When the magnetic rod is in the screening pipe, magnetic rods that do not meet the length requirements will be discharged from the discharge port under the action of the first telescopic rod and the push plate. The size of the discharge port is also the preset size of the non-standard magnetic rod. Magnetic rods that meet the standard requirements can pass through the screening pipe and then enter the second conveying pipe for continued transportation. The baffle assembly is used to temporarily block the magnetic rod in the screening pipe. When the standard magnetic rod is in the screening pipe, the baffle assembly opens, and the magnetic rod falls into the second conveying pipe for continued transportation.
[0007] Optionally, the material blocking assembly includes a second telescopic rod, a hinge plate, and an abutment block; a second connecting port is provided on the side wall of the bottom of the screening tube away from the discharge port; the second telescopic rod is also electrically telescopic and its fixed end is fixed to the frame, and its movable end can enter the screening tube through the second connecting port; the hinge plate is hinged to the inner side wall of the screening tube above the second connecting port; the abutment block is fixedly connected to the movable end of the second telescopic rod and abuts against the hinge plate.
[0008] By adopting the above technical solution, the second telescopic rod can be used to push the abutment block to move, thereby driving the hinge plate to rotate. The rotation of the hinge plate can then be used to control whether the magnetic rod can fall from the screening pipe into the second conveying pipe. When the hinge plate is pushed to a horizontal position by the abutment block, the magnetic rod cannot fall. When the hinge plate is in a vertical position, the magnetic rod can fall normally.
[0009] Optionally, the longitudinal section of the abutment block is circular.
[0010] By adopting the above technical solution, damage to the hinge plate caused by the square edges during the contact between the contact block and the hinge plate can be avoided.
[0011] Optionally, the first delivery tube is provided with a clamping assembly, which is used to clamp the magnetic rod located in the first delivery tube so that it cannot fall.
[0012] By adopting the above technical solution, when a standard magnetic rod in the screening tube needs to fall into the second conveying tube, the magnetic rod located above the first conveying tube can be clamped by the clamping assembly to prevent it from falling with the magnetic rod below.
[0013] Optionally, a third connecting port is provided on each of the two side walls inside the first conveying pipe. The clamping assembly includes a third telescopic rod and a clamping plate. The clamping plate is disposed inside the first conveying pipe. The third telescopic rod is also an electric telescopic rod, and its fixed end is fixed to the frame, while its movable end is fixedly connected to the clamping plate through the third connecting port.
[0014] By adopting the above technical solution, the clamping plate can be moved by the third telescopic rod to hold the magnetic rod and keep it in the first conveying tube, thus preventing it from falling.
[0015] Optionally, a pressure sensor is provided on the hinge plate.
[0016] By adopting the above technical solution, the presence of a magnetic rod on the hinge plate can be determined by a pressure sensor. After the work in the screening tube is completed, if the length of the magnetic rod does not meet the standard, the magnetic rod is pushed out from the discharge port by the first telescopic rod and the push plate. At this time, there is no magnetic rod on the hinge plate. After receiving the signal, the pressure sensor can use the clamping assembly to put down the next magnetic rod, allowing it to fall into the screening tube for screening. If the length of the magnetic rod meets the standard, there is a magnetic rod on the hinge plate. After receiving the signal, the pressure sensor can operate the third telescopic rod to rotate the hinge plate, allowing the magnetic rod to fall into the second conveying tube for continued conveying. This improves the convenience of operation.
[0017] Optionally, a controller is also included, wherein the pressure sensor, the first telescopic rod, the second telescopic rod, and the third telescopic rod are all electrically connected to the controller.
[0018] By adopting the above technical solution, the controller can receive signals transmitted by the pressure sensor and control the operation of the first, second, and third telescopic rods without manual control, further improving the convenience of operation. In the initial working state, the third telescopic rod is in the extended state, the hinge plate is in the horizontal state, and the magnetic rod to be screened falls onto the hinge plate and is located in the screening tube. Then, the controller first activates the clamping assembly to clamp the magnetic rod above the screening tube, and then activates the extension of the first telescopic rod, pushing the magnetic rod towards the discharge port through the push plate. Magnetic rods that do not meet the length standard are pushed out, while magnetic rods that meet the standard cannot be pushed out. Then, the controller receives the pressure sensor signal on the hinge plate. If the magnetic rod is pushed out, the clamping assembly is activated to put down the next magnetic rod, and the above steps are repeated. If the magnetic rod is not pushed out, the third telescopic rod is shortened to rotate the hinge plate to the vertical state. At this time, the magnetic rods that meet the standard enter the second conveying tube for continued transportation. Then, the third telescopic rod is extended to return the hinge plate to the horizontal state, and the clamping assembly is activated again to put down the next magnetic rod, and the above steps are repeated.
[0019] Optionally, a first receiving groove and a second receiving groove are provided on the side wall of the screening pipe away from the discharge port. The size of the first receiving groove is adapted to the size of the push plate, and the size of the second receiving groove is adapted to the size of the hinge plate. When the first telescopic rod is in the shortened state, the push plate is located in the first receiving groove, and when the second telescopic rod is in the shortened state, the hinge plate is located in the second receiving groove. A third receiving groove is provided on both sides of the side wall of the first conveying pipe. The size of the third receiving groove is adapted to the size of the clamping plate. When the third telescopic rod is in the shortened state, the clamping plate is located in the third receiving groove.
[0020] By adopting the above technical solution, when the magnetic rod needs to fall, the push plate can be stored in the first storage slot, the hinge plate in the second storage slot, and the clamping plate in the third storage slot, thus avoiding affecting the falling of the magnetic rod.
[0021] Optionally, the frame is provided with a collection box, which is located below the side of the discharge port away from the screening pipe.
[0022] By adopting the above technical solution, it is possible to collect magnetic rods that do not meet the length standard that fall through the feed port.
[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a first conveying pipe, a second conveying pipe, a screening pipe, a first telescopic rod, and a push plate, when the magnetic rod is being conveyed, it can be conveyed through the first conveying pipe to the screening pipe, and then through the second conveying pipe to the next station; when the magnetic rod is in the screening pipe, the magnetic rods whose length does not meet the requirements will be discharged from the discharge port under the action of the first telescopic rod and the push plate. The size of the discharge port is also the preset size of the non-standard magnetic rods. The magnetic rods that meet the standard requirements can pass through the screening pipe and then enter the second conveying pipe for continued transportation, which improves the defect of low efficiency caused by manual screening in the traditional cylindrical magnet length screening process; 2. By setting up the second telescopic rod, the hinge plate and the abutment block, the abutment block can be moved by the second telescopic rod, thereby driving the hinge plate to rotate. The rotation of the hinge plate can then control whether the magnetic rod can fall from the screening tube into the second conveying tube. When the hinge plate is pushed to the horizontal position by the abutment block, the magnetic rod cannot fall. When the hinge plate is in the vertical position, the magnetic rod can fall normally. 3. With the setting of the third telescopic rod and the clamping plate, when the magnetic rod that meets the standard needs to fall into the second conveying pipe in the screening tube, the clamping plate can be moved by the third telescopic rod to clamp the magnetic rod and keep it in the first conveying pipe, so as to prevent it from falling with the magnetic rod below. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional structural diagram of an embodiment of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 yes Figure 2 A magnified view of part B in the middle section; Figure 5 yes Figure 2 A magnified view of part C in the middle.
[0025] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First conveying pipe; 21. Third connecting port; 22. Third receiving trough; 3. Second conveying pipe; 4. Screening pipe; 41. Discharge port; 42. First connecting port; 43. Second connecting port; 44. First receiving trough; 45. Second receiving trough; 5. First telescopic rod; 51. Push plate; 6. Material blocking assembly; 61. Second telescopic rod; 62. Hinge plate; 63. Abutment block; 7. Clamping assembly; 71. Third telescopic rod; 72. Clamping plate; 8. Collection box. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0027] This application discloses a cylindrical magnet screening and feeding mechanism. (Refer to...) Figure 1 and Figure 2 A cylindrical magnet screening and feeding mechanism includes a frame 1, a first conveying pipe 2, a second conveying pipe 3, and a screening pipe 4; the first conveying pipe 2 and the second conveying pipe 3 are both vertically arranged, and the screening pipe 4 is arranged between the first conveying pipe 2 and the second conveying pipe 3, and is coaxial with both the first conveying pipe 2 and the second conveying pipe 3.
[0028] Reference Figure 2 and Figure 3 The screening tube 4 has a discharge port 41 on one side and a first connecting port 42 on the other side. A first telescopic rod 5 is inserted through the first connecting port 42. The first telescopic rod 5 is an electric telescopic rod and is fixedly mounted on the frame 1. The movable end of the first telescopic rod 5 is located inside the screening tube 4 and is fixedly connected to a push plate 51. A baffle assembly 6 is provided at the bottom of the screening tube 4. The baffle assembly 6 is used to limit the magnetic rod inside the screening tube 4.
[0029] When the magnetic rod is being conveyed, it can be transported through the first conveying pipe 2 to the screening pipe 4, and then through the second conveying pipe 3 to the next station. When the magnetic rod is in the screening pipe 4, magnetic rods that do not meet the length requirements will be discharged from the discharge port 41 under the action of the first telescopic rod 5 and the push plate 51. The size of the discharge port 41 is also the preset size of the non-standard magnetic rod. Magnetic rods that meet the standard requirements can pass through the screening pipe 4 and then enter the second conveying pipe 3 for continued transportation. The baffle assembly 6 is used to temporarily block the magnetic rod in the screening pipe 4. When the standard magnetic rod is in the screening pipe 4, the baffle assembly 6 opens, and the magnetic rod falls into the second conveying pipe 3 for continued transportation.
[0030] Reference Figure 2 and Figure 4 The material blocking assembly 6 includes a second telescopic rod 61, a hinge plate 62, and an abutment block 63. A second connecting port 43 is provided on the side wall of the bottom of the screening pipe 4 away from the discharge port 41. The second telescopic rod 61 is also electrically telescopic, and its fixed end is fixed on the frame 1. Its movable end can enter the screening pipe 4 through the second connecting port 43. The hinge plate 62 is hinged to the inner side wall of the screening pipe 4 above the second connecting port 43. The abutment block 63 is fixedly connected to the movable end of the second telescopic rod 61 and abuts against the hinge plate 62. The longitudinal section of the abutment block 63 is circular, and its arc surface abuts against the hinge plate 62.
[0031] When screening is required, the extended second telescopic rod 61 drives the hinge plate 62 to a horizontal state through the abutment block 63, which can limit the magnetic rod inside the screening tube 4; when it needs to fall, the shortened second telescopic rod 61 drives the hinge plate 62 to rotate to a vertical state, and the magnetic rod can fall.
[0032] Reference Figure 2 and Figure 5 The first conveying pipe 2 is equipped with a clamping assembly 7, which is used to clamp the magnetic rod located in the first conveying pipe 2 to prevent it from falling. A third connecting port 21 is opened on each of the two side walls inside the first conveying pipe 2. The clamping assembly 7 includes a third telescopic rod 71 and a clamping plate 72. The clamping plate 72 is set inside the first conveying pipe 2. The third telescopic rod 71 is also an electric telescopic rod, and its fixed end is fixed on the frame 1, and its movable end is fixedly connected to the clamping plate 72 through the third connecting port 21.
[0033] When the magnetic rod that meets the standard in the screening tube 4 needs to fall into the second conveying tube 3, the third telescopic rod 71 extends to drive the clamping plate 72 to move, clamping the magnetic rod to be screened above the screening tube 4 and keeping it in the first conveying tube 2 to prevent it from falling with the magnetic rod below.
[0034] Reference Figure 1The hinge plate 62 is equipped with a pressure sensor and a controller. The pressure sensor, the first telescopic rod 5, the second telescopic rod 61 and the third telescopic rod 71 are all electrically connected to the controller.
[0035] In the initial working state, the third telescopic rod 71 is in the extended state, and the hinge plate 62 is in the horizontal state. The magnetic rod to be screened falls onto the hinge plate 62 and is located in the screening tube 4. Then, the controller first activates the clamping assembly 7 to clamp the magnetic rod above the screening tube 4, and then activates the first telescopic rod 5 to extend, pushing the magnetic rod towards the discharge port 41 through the push plate 51. Magnetic rods that do not meet the length standard are pushed out, while magnetic rods that meet the standard cannot be pushed out. Then, the controller receives the pressure sensor signal on the hinge plate 62. If the magnetic rod is pushed out, the clamping assembly 7 is activated to put down the next magnetic rod, and the above steps are repeated. If the magnetic rod is not pushed out, the third telescopic rod 71 is shortened to rotate the hinge plate 62 to the vertical state. At this time, the magnetic rod that meets the standard enters the second conveying tube 3 for continued transportation. Then, the third telescopic rod 71 is extended to return the hinge plate 62 to the horizontal state. At this time, the clamping assembly 7 is activated again to put down the next magnetic rod, and the above steps are repeated.
[0036] Reference Figure 3 and Figure 4 A first storage groove 44 and a second storage groove 45 are provided on the side wall of the screening tube 4 away from the discharge port 41. The size of the first storage groove 44 is adapted to the size of the push plate 51, and the size of the second storage groove 45 is adapted to the size of the hinge plate 62. When the first telescopic rod 5 is in the shortened state, the push plate 51 is located in the first storage groove 44. When the second telescopic rod 61 is in the shortened state, the hinge plate 62 is located in the third storage groove 22.
[0037] Reference Figure 2 and Figure 5 The first conveying pipe 2 has a third storage groove 22 on both sides of the inner side wall. The size of the third storage groove 22 is adapted to the size of the clamping plate 72. When the third telescopic rod 71 is in the shortened state, the clamping plate 72 is located in the third storage groove 22.
[0038] When the magnetic rod needs to fall, the push plate 51 can be stored in the first storage slot 44, the hinge plate 62 can be stored in the second storage slot 45, and the clamping plate 72 can be stored in the third storage slot 22, so as to avoid affecting the falling of the magnetic rod.
[0039] Reference Figure 1 The frame 1 is equipped with a collection box 8, which is located below the side of the discharge port 41 away from the screening pipe 4. The collection box 8 can collect magnetic rods that do not meet the length standard that fall through the discharge port 41.
[0040] The implementation principle of the cylindrical magnet screening and feeding mechanism in this application embodiment is as follows: In the initial working state, the third telescopic rod 71 is in the extended state, and the hinge plate 62 is in the horizontal state. The magnetic rod to be screened falls onto the hinge plate 62 and is located in the screening tube 4. Then, the controller first activates the clamping assembly 7 to clamp the magnetic rod above the screening tube 4, and then activates the first telescopic rod 5 to extend, pushing the magnetic rod towards the discharge port 41 through the push plate 51. Magnetic rods that do not meet the length standard are pushed out, while magnetic rods that meet the standard cannot be pushed out. Then, the first telescopic rod 5 is shortened, so that the push plate 51 returns to the first receiving groove 44. Then the controller receives the magnetic rods from the hinge plate 62. If the magnetic rod is pushed out, the clamping assembly 7 is activated to shorten the third telescopic rod 71, causing the clamping plate 72 to return to the third storage slot 22, and the next magnetic rod is placed down. The above steps are repeated. If the magnetic rod is not pushed out, the third telescopic rod 71 is shortened to rotate the hinge plate 62 to a vertical position and return it to the second storage slot 45. At this time, the standard magnetic rod falls into the second conveying pipe 3 for continued transportation. Then the third telescopic rod 71 is extended to return the hinge plate 62 to a horizontal position. At this time, the clamping assembly 7 is activated again to place the next magnetic rod down, and the above steps are repeated.
[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A cylindrical magnet screening and feeding mechanism, characterized in that, The system includes a frame (1), a first conveying pipe (2), a second conveying pipe (3), and a screening pipe (4). The first conveying pipe (2) and the second conveying pipe (3) are both vertically arranged. The screening pipe (4) is arranged between the first conveying pipe (2) and the second conveying pipe (3) and is coaxial with both the first conveying pipe (2) and the second conveying pipe (3). The screening pipe (4) has a discharge port (41) on one side and a first connecting port (42) on the other side. A first telescopic rod (5) is inserted into the first connecting port (42). The first telescopic rod (5) is an electric telescopic rod and is fixedly arranged on the frame (1). The movable end of the first telescopic rod (5) is located inside the screening pipe (4) and is fixedly connected to a push plate (51). The bottom of the screening pipe (4) is provided with a baffle assembly (6). The baffle assembly (6) is used to limit the magnetic rod inside the screening pipe (4).
2. The cylindrical magnet screening and feeding mechanism according to claim 1, characterized in that, The material blocking assembly (6) includes a second telescopic rod (61), a hinge plate (62), and an abutment block (63); a second communication port (43) is provided on the side wall of the bottom of the screening tube (4) away from the discharge port (41). The second telescopic rod (61) is also electrically telescopic and its fixed end is fixed on the frame (1). Its movable end can enter the screening tube (4) through the second communication port (43); the hinge plate (62) is hinged to the inner side wall of the screening tube (4) above the second communication port (43); the abutment block (63) is fixedly connected to the movable end of the second telescopic rod (61) and abuts against the hinge plate (62).
3. The cylindrical magnet screening and feeding mechanism according to claim 2, characterized in that, The longitudinal section of the abutment block (63) is circular to avoid damage to the hinge plate (62) caused by square edges.
4. The cylindrical magnet screening and feeding mechanism according to claim 3, characterized in that, The first delivery tube (2) is provided with a clamping assembly (7), which is used to clamp the magnetic rod located in the first delivery tube (2) so that it cannot fall.
5. The cylindrical magnet screening and feeding mechanism according to claim 4, characterized in that, A third connecting port (21) is provided on each of the two side walls inside the first conveying pipe (2). The clamping assembly (7) includes a third telescopic rod (71) and a clamping plate (72). The clamping plate (72) is set inside the first conveying pipe (2). The third telescopic rod (71) is also an electric telescopic rod, and its fixed end is fixed on the frame (1), and its movable end is fixedly connected to the clamping plate (72) through the third connecting port (21).
6. The cylindrical magnet screening and feeding mechanism according to claim 5, characterized in that, A pressure sensor is provided on the hinge plate (62).
7. A cylindrical magnet screening and feeding mechanism according to claim 6, characterized in that, It also includes a controller, and the pressure sensor, the first telescopic rod (5), the second telescopic rod (61) and the third telescopic rod (71) are all electrically connected to the controller.
8. The cylindrical magnet screening and feeding mechanism according to claim 7, characterized in that, A first receiving groove (44) and a second receiving groove (45) are provided on the side wall away from the discharge port (41) of the screening pipe (4). The size of the first receiving groove (44) is adapted to the size of the push plate (51), and the size of the second receiving groove (45) is adapted to the size of the hinge plate (62). When the first telescopic rod (5) is in the shortened state, the push plate (51) is located in the first receiving groove (44), and when the second telescopic rod (61) is in the shortened state, the hinge plate (62) is located in the second receiving groove (45). A third receiving groove (22) is provided on the side walls on both sides of the first conveying pipe (2). The size of the third receiving groove (22) is adapted to the size of the clamping plate (72). When the third telescopic rod (71) is in the shortened state, the clamping plate (72) is located in the third receiving groove (22).
9. The cylindrical magnet screening and feeding mechanism according to claim 1, characterized in that, The frame (1) is provided with a collection box (8), which is located below the discharge port (41) on the side away from the screening pipe (4).