Magnetic steel pushing structure

By designing a magnet pushing structure and using counterweights and rotating plates to press the magnet tightly, the problem of magnets flipping and jamming in DC contactor production was solved, improving production efficiency and assembly accuracy.

CN223935660UActive Publication Date: 2026-02-24JUEN ELECTRIC (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202520737662.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-02-24
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

In existing technologies, magnets are prone to sticking and incomplete separation during the production of DC contactors, leading to flipping, jamming, and inaccurate assembly, which affects production efficiency and quality.

Method used

A magnet pushing structure was designed, including a mounting base, a support column, a magnet placement groove, a guide rail, a counterweight, a rotating plate, and a pressure plate. The cooperation between the cylinder-driven push rod and the rotating plate ensures that the magnet does not flip during the pushing process. The counterweight and pressure plate tightly press the magnet to prevent it from adhering to the groove wall.

Benefits of technology

It effectively prevents magnets from flipping, avoids pushing jams and inaccurate assembly, improves production efficiency and assembly accuracy, reduces rework rate, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

A magnetic steel pushing structure comprises a mounting base, a supporting column is mounted on the mounting base, a magnetic steel containing groove and a guide sliding rail are mounted on the front side of the supporting column, a pushing opening is formed in the lower end of the magnetic steel containing groove, and a push-out opening is formed in the lower end of the rear side face of the magnetic steel containing groove. An air cylinder mounting seat is fixedly mounted on the front side of the upper surface of the mounting seat, a telescopic air cylinder is mounted on the air cylinder mounting seat, and a push rod is mounted at the piston rod end of the telescopic air cylinder and movably inserted between the pushing opening and the pushing-out opening; a balancing weight is slidably connected to the outer surface of the guide sliding rail, a mounting block is arranged below the balancing weight, a rotating piece is rotatably connected to the front side of the mounting block, and a pressing piece is arranged on the side edge of the rotating piece; a strip-shaped notch is formed in one side of the magnetic steel containing groove, and the pressing piece movably penetrates through the strip-shaped notch to be pressed on the magnetic steel in the magnetic steel containing groove. According to the utility model, the defects in the prior art are overcome, the magnetic steel can be effectively prevented from overturning, and then the problems of unsmooth pushing, inaccurate magnetic steel assembly and the like are effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the field of magnet separation technology, specifically to a magnet pushing structure. Background Technology

[0002] Permanent magnets are also known as magnetic steel. Magnetic steel is made of high-performance neodymium iron boron material. DC contactors require a strong magnetic field for arc extinguishing. During the production of DC contactors, multiple stacked magnetic steel pieces need to be precisely separated and pushed one by one to the assembly station.

[0003] Existing technologies often employ manual separation or simple pusher mechanisms, which suffer from problems such as magnets easily sticking together and incomplete separation. Furthermore, for example, patent number CN206265843U, titled "A Pneumatic Magnet Separator," mainly includes a magnet assembly, a storage rack for storing the magnet assembly, and a pneumatic separation device. The pusher head of the pneumatic separation device pushes out the bottom magnet from the magnet assembly.

[0004] However, because the magnets used in DC contactors are relatively small, they are prone to flipping during movement within the storage rack, leading to misalignment and causing problems such as pushing jams and inaccurate assembly. This results in low production efficiency, reduced assembly accuracy, increased rework rates, and impacts product quality and production cycle. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a magnetic steel pushing structure, which overcomes the shortcomings of the prior art. It is reasonably designed and can effectively prevent the magnetic steel from flipping, thereby effectively avoiding problems such as pushing jamming and inaccurate magnetic steel assembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A magnet pushing structure includes a mounting base. A support column is vertically fixedly mounted on the rear side of the upper surface of the mounting base. A magnet placement groove is fixedly mounted on the front side of the support column. The magnet placement groove is a strip-shaped groove structure with an open top. A pushing opening is opened at the lower end of the front side of the magnet placement groove, and a push-out opening is opened at the lower end of the rear side of the magnet placement groove. The push-out opening and the pushing opening are directly opposite each other. A cylinder mounting base is fixedly mounted on the front side of the upper surface of the mounting base. A telescopic cylinder is horizontally mounted on the cylinder mounting base. The piston rod of the telescopic cylinder passes through the cylinder mounting base and a push rod is fixedly mounted thereon. The push rod is movably inserted between the pushing opening and the push-out opening.

[0008] A guide rail is vertically fixed to the front side of the support column. A counterweight is slidably connected to the outer surface of the guide rail. An installation block is provided below the counterweight. A rotating plate is rotatably connected to the front side of the installation block via a rotating shaft. A pressure plate is provided on the side of the rotating plate near the magnet placement slot. A strip-shaped slot is opened on the side of the magnet placement slot near the guide rail. The strip-shaped slot is parallel to the guide rail. The pressure plate moves through the strip-shaped slot to press against the magnet in the magnet placement slot.

[0009] Preferably, a rotating handle is mounted on the rotating plate, and the rotating handle is positioned away from the rotating shaft.

[0010] Preferably, the rotating plate has a first positioning hole on its surface and the mounting block has a second positioning hole on its upper surface. The first positioning hole and the second positioning hole correspond to each other and are connected by a positioning pin.

[0011] Preferably, a separator insert is fixedly installed above the push rod, and a limiting opening is opened below the front side of the magnet placement groove, the limiting opening being located above the push opening; the separator insert is movably inserted into the limiting opening.

[0012] Preferably, a screw is fixedly installed above the push rod, and two nuts are threadedly connected to the surface of the screw. The screw passes through the separator plate and is locked in place by the nuts.

[0013] Preferably, a push handle is provided on the front side of the counterweight.

[0014] Preferably, an observation window is provided on the front side of the magnet placement slot.

[0015] This invention provides a magnet pushing structure with the following advantages: By setting a counterweight, a rotating plate, and a pressure plate, the pressure plate keeps the magnet firmly pressed against it throughout the entire pushing process, effectively preventing the magnet from flipping over and thus avoiding problems such as pushing jams and inaccurate magnet assembly. Furthermore, the pressure plate's action of firmly pressing the magnet also effectively prevents the magnet from adhering to the side wall of the magnet placement slot due to the influence of side metal adsorption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.

[0017] Figure 1 A schematic diagram of the structure of this utility model;

[0018] Figure 2 A schematic diagram of the structure of the counterweight and rotating plate in this utility model;

[0019] Figure 3A schematic diagram of the push rod and the separator insert in this utility model;

[0020] Explanation of the labels in the diagram:

[0021] 1. Mounting base; 2. Support column; 3. Magnet placement slot; 4. Push opening; 5. Cylinder mounting base; 6. Telescopic cylinder; 7. Push rod; 8. Divider insert; 9. Limiting port; 10. Guide rail; 11. Counterweight; 12. Rotating plate; 13. Pressure plate; 14. Strip groove; 15. Mounting block; 16. Rotating handle; 17. Screw; 18. Nut; 19. Push handle; 20. Observation window; 21. Rotating shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] Example 1, as Figure 1-3 As shown, a magnetic steel pushing structure includes a mounting base 1. A support column 2 is vertically fixedly mounted on the rear side of the upper surface of the mounting base 1. A magnetic steel placement groove 3 and a guide rail 10 are vertically fixedly mounted on the front side of the support column 2. The magnetic steel placement groove 3 is a strip-shaped groove structure with an open top. The magnetic steel placement groove 3 and the guide rail 10 are arranged parallel to each other. A pushing opening 4 is provided at the lower end of the front side of the magnetic steel placement groove 3, and an ejection port is provided at the lower end of the rear side of the magnetic steel placement groove 3. The ejection port and the pushing opening 4 are directly opposite each other. A cylinder mounting base 5 is fixedly mounted on the front side of the upper surface of the mounting base 1. A telescopic cylinder 6 is horizontally mounted on the cylinder mounting base 5. The piston rod of the telescopic cylinder 6 passes through the cylinder mounting base 5 and a push rod 7 is fixedly mounted thereon. The push rod 7 is movably inserted between the pushing opening 4 and the ejection port.

[0024] A counterweight 11 is slidably connected to the outer surface of the guide rail 10. A mounting block 15 is positioned below the counterweight 11. A rotating plate 12 is rotatably connected to the front side of the mounting block 15 via a pivot 21. A pressure plate 13 is positioned on the side of the rotating plate 12 near the magnet placement groove 3. A strip-shaped slot 14 is formed on the side of the magnet placement groove 3 near the guide rail 10, parallel to the guide rail 10. The pressure plate 13 moves through the strip-shaped slot 14 to press against the magnet within the magnet placement groove 3. In this embodiment, under the application of external force, the pressure plate 13 can pass through the strip-shaped slot 14 and press against the magnet.

[0025] Working principle:

[0026] During use, first rotate the rotating plate 12 so that the pressure plate 13 on the side of the rotating plate 12 disengages from the magnet placement groove 3. Then, multiple stacked magnets can be placed into the magnet placement groove 3. Next, move the counterweight 11 upward along the guide rail 10 axis to drive the rotating plate 12 upward, so that the pressure plate 13 moves above the uppermost magnet. Then, through the gravity of the rotating plate 12 itself, the pressure plate 13 on the side of the rotating plate 12 automatically rotates and passes through the strip groove 14. Then, release the counterweight 11, so that the pressure plate 13 can be pressed tightly on the magnet by the gravity of the counterweight 11, thereby effectively ensuring the stability of the magnet during the downward process, and thus effectively preventing the magnet from overturning during the movement, thereby improving the reliability of the entire device.

[0027] Then, when pushing the magnets, the piston rod of the telescopic cylinder 6 is extended, which in turn drives the push rod 7 from the pushing opening 4 into the magnet placement slot 3, pushing the bottom magnet out of the ejection port to facilitate subsequent magnet assembly. Then, the piston rod of the telescopic cylinder 6 is retracted, and the push rod 7 exits the magnet placement slot 3, ensuring the next magnet falls smoothly to the bottom of the slot 3. The extension and retraction of the piston rod of the telescopic cylinder 6 is repeated to push out the magnets one by one until all magnets are assembled.

[0028] In this embodiment, by setting a counterweight 11, a rotating plate 12, and a pressing plate 13, the pressing plate 13 keeps the magnet firmly pressed throughout the entire magnet pushing process, effectively preventing the magnet from flipping over and thus effectively avoiding problems such as pushing jams and inaccurate magnet assembly. In addition, the pressing plate 13's action of firmly pressing the magnet also effectively prevents the magnet from adhering to the side wall of the magnet placement groove 3 due to the influence of side metal adsorption.

[0029] In embodiment two, as a further preferred embodiment one, a rotating handle 16 is installed on the rotating plate 12, and the rotating handle 16 is positioned away from the rotating shaft 21. By rotating the handle 16, the operator can rotate the rotating plate 12, causing the pressure plate 13 on the side of the rotating plate 12 to disengage from the magnet placement groove 3.

[0030] In Example 3, as a further preferred embodiment of Example 1, a first positioning hole is formed on the surface of the rotating plate 12, and a second positioning hole is formed on the upper surface of the mounting block 15. The first and second positioning holes correspond to each other and are connected by a positioning pin. Therefore, during the pushing process of the magnet, the positioning pin can be inserted into the first and second positioning holes to limit and fix the rotating plate 12 and the mounting block 15, preventing the rotating plate 12 from rotating unexpectedly during the pushing process of the magnet and ensuring that the pressure plate 13 always presses firmly against the magnet. When it is necessary to rotate the rotating plate 12, simply pull out the positioning pin to rotate it easily.

[0031] In Example 4, as a further preferred embodiment of Example 1, a separator plate 8 is fixedly installed above the push rod 7. A limiting port 9 is opened on the lower front side of the magnet placement groove 3, and the limiting port 9 is located above the push opening 4. The separator plate 8 is movably inserted into the limiting port 9. By setting the separator plate 8, when the push rod 7 moves into the magnet placement groove 3 under the drive of the piston rod of the telescopic cylinder 6, it will also drive the separator plate 8 to be inserted into the limiting port 9. Thus, the separator plate 8 can effectively separate the two adjacent magnets at the bottom, so that the push rod 7 can push out a single magnet, thereby further ensuring the accuracy and stability of magnet pushing.

[0032] In this embodiment, a screw 17 is fixedly installed above the push rod 7. Two nuts 18 are threadedly connected to the surface of the screw 17. The screw 17 passes through the separator plate 8 and is locked by the nuts 18. Therefore, the height position of the separator plate 8 can be flexibly adjusted by rotating the nuts 18 according to the size of different magnets to adapt to the pushing requirements of different magnets. Furthermore, the limiting clamping effect of the two nuts 18 can effectively ensure the stability of the separator plate 8 and ensure that it does not shift during the pushing process.

[0033] In Example 5, as a further preferred embodiment of Example 1, a push handle 19 is provided on the front side of the counterweight 11. Pushing the handle 19 allows the operator to more easily push the counterweight 11, enabling it to slide smoothly along the guide rail 10.

[0034] In Example 6, as a further preferred embodiment of Example 1, an observation window 20 is provided on the front side of the magnet placement slot 3. The observation window 20 allows workers to monitor the remaining amount of magnets in the magnet placement slot 3 in real time, facilitating timely replenishment and ensuring continuous production. It also allows for the timely detection of abnormalities, enabling rapid intervention to prevent production interruptions due to insufficient or misaligned magnets, thus improving overall work efficiency.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A magnetic steel pushing structure, characterized in that: The system includes a mounting base (1), on which a support column (2) is vertically fixedly mounted on the rear side of the upper surface of the mounting base (1). A magnet placement groove (3) is fixedly mounted on the front side of the support column (2). The magnet placement groove (3) is a strip-shaped groove structure with an open top. A push opening (4) is opened at the lower end of the front side of the magnet placement groove (3), and an ejection port is opened at the lower end of the rear side of the magnet placement groove (3). The ejection port and the push opening (4) are directly opposite each other. A cylinder mounting base (5) is fixedly mounted on the front side of the upper surface of the mounting base (1). A telescopic cylinder (6) is horizontally mounted on the cylinder mounting base (5). The piston rod of the telescopic cylinder (6) passes through the cylinder mounting base (5) and a push rod (7) is fixedly mounted thereon. The push rod (7) is movably inserted between the push opening (4) and the ejection port. The front side of the support column (2) is also vertically fixed with a guide rail (10). A counterweight (11) is slidably connected to the outer surface of the guide rail (10). An installation block (15) is provided below the counterweight (11). A rotating plate (12) is rotatably connected to the front side of the installation block (15) through a rotating shaft (21). A pressure plate (13) is provided on the side of the rotating plate (12) near the magnet placement groove (3). A strip-shaped slot (14) is opened on the side of the magnet placement groove (3) near the guide rail (10). The strip-shaped slot (14) is parallel to the guide rail (10). The pressure plate (13) moves through the strip-shaped slot (14) to press against the magnet in the magnet placement groove (3).

2. The magnet pushing structure according to claim 1, characterized in that: A rotating handle (16) is mounted on the rotating plate (12), and the rotating handle (16) is positioned away from the rotating shaft (21).

3. The magnet pushing structure according to claim 1, characterized in that: The rotating plate (12) has a first positioning hole on its surface, and the mounting block (15) has a second positioning hole on its upper surface. The first positioning hole and the second positioning hole correspond to each other and are connected by a positioning pin.

4. The magnet pushing structure according to claim 1, characterized in that: A separator plate (8) is fixedly installed above the push rod (7). A limit opening (9) is opened below the front side of the magnet placement groove (3). The limit opening (9) is located above the push opening (4). The separator plate (8) is movably inserted into the limit opening (9).

5. The magnet pushing structure according to claim 4, characterized in that: A screw (17) is fixedly installed above the push rod (7). Two nuts (18) are connected to the surface of the screw (17) by threads. The screw (17) passes through the separator plate (8) and is locked by the nuts (18).

6. The magnet pushing structure according to claim 1, characterized in that: A push handle (19) is provided on the front side of the counterweight (11).

7. The magnet pushing structure according to claim 1, characterized in that: An observation window (20) is provided on the front side of the magnet placement slot (3).

Citation Information

Patent Citations

  • Pneumatic type magnet steel separator

    CN206265843U