Magnet positive and negative pole foolproof clamping self-locking return mechanism

Abstract

The application relates to the technical field of magnet inserting mechanisms, and discloses a foolproof clamping self-locking and returning mechanism for positive and negative poles of a magnet, which comprises a mounting plate, a jacking rod and a returning mechanism plate. The mounting plate is internally provided with a transverse track and a longitudinal track which are communicated with each other. A plurality of movable magnets which are mutually adsorbed are arranged side by side in the transverse track. The movable magnet located at the intersection of the transverse track and the longitudinal track is a terminal magnet. The mounting plate is internally provided with a fixed magnet. The fixed magnet is located opposite to the transverse track. The fixed magnet adsorbs the terminal magnet. The jacking rod is vertically and slidingly connected with the mounting plate. The jacking rod pushes the terminal magnet into a mold below the longitudinal track through the longitudinal track. The foolproof clamping self-locking and returning mechanism for positive and negative poles of a magnet solves the problem that the positive and negative poles of a magnet cannot be prevented from being mistaken in the process of installing the magnet.

Description

Technical Field

[0001] This invention relates to the field of magnet insertion mechanism technology, specifically to a magnet positive and negative pole anti-foolproof locking and return mechanism. Background Technology

[0002] Currently, when placing magnets into the mold, they are manually placed one by one, and the positive and negative poles of the magnets cannot be effectively prevented by the naked eye; automated clamping and placement into the mold is more expensive. Summary of the Invention

[0003] The purpose of this invention is to provide a magnetic positive and negative pole anti-foolproof locking and return mechanism to solve at least one of the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A magnet positive and negative pole anti-fooling self-locking return mechanism includes a mounting plate, a push rod, and a return mechanism plate. The mounting plate has interconnected horizontal and vertical tracks. Multiple movable magnets are arranged side by side in the horizontal track and attract each other. The movable magnet located at the intersection of the horizontal and vertical tracks is the end magnet. The mounting plate has a fixed magnet located directly opposite the horizontal track. The fixed magnet attracts the end magnet in the horizontal track. The push rod is vertically slidably connected to the mounting plate. The push rod pushes the end magnet in the horizontal track into the mold below the vertical track through the vertical track.

[0006] The mounting plate has a guide rail groove at its rear end. The return mechanism plate slides within the guide rail groove and engages with the inner wall of the guide rail groove. The return mechanism plate has a spring control pin. The end of the spring control pin extending out of the return mechanism plate is connected to the far end of the guide rail groove. The spring control pin has a transverse reset spring. The return mechanism plate has an elastic buckle. The mounting plate has a strip-shaped hole channel communicating with the rear of the transverse track. The elastic buckle passes through the strip-shaped hole channel and extends into the transverse track. The end of the elastic buckle has a pressing slope, which is located on the side near the entrance end of the transverse track.

[0007] This technical solution utilizes interconnected horizontal and vertical tracks within the mounting plate. Multiple mutually attracting movable magnets are arranged side-by-side within the horizontal tracks. The mounting plate is initially formed by these magnets being attracted together, and they are sequentially inserted into the plate via the horizontal tracks. The movable magnet located at the intersection of the horizontal and vertical tracks is the end magnet. A fixed magnet, positioned directly opposite the horizontal track, attracts the end magnet. When the movable magnet is inserted into the horizontal track, it is attracted by the fixed magnet. Applying the principle of magnetic repulsion and attraction, the correct installation of the movable magnet can be identified, thus preventing mistaken installation. The push rod is vertically slidably connected to the mounting plate. The push rod pushes the end magnet into the mold below the vertical track via the vertical track. This can be achieved by manually pressing the push rod, which then inserts the end magnet into the mold below the vertical track. Because the rear end of the mounting plate has a guide rail groove, the return mechanism plate slides within the guide rail groove and engages with the inner wall of the guide rail groove. The return mechanism plate has a spring control pin, which extends from the end of the return mechanism plate and connects to the far end of the guide rail groove. The spring control pin has a transverse return spring, and the return mechanism plate has an elastic buckle. The mounting plate has a strip-shaped channel that connects to the rear of the transverse track. The elastic buckle passes through the strip-shaped channel and extends into the transverse track. The elastic buckle moves together with the return mechanism plate, and the end of the elastic buckle presses against the movable magnet. When the push rod is inserted into the end magnet through the longitudinal track, the transverse return spring drives the elastic buckle to automatically move. The elastic buckle acts on the movable magnet in the transverse track, pushing the movable magnet toward the fixed magnet for adsorption. The movable magnet in the transverse track may hesitate to adsorb with the fixed magnet due to the downward movement of the push rod. In this technical solution, the elastic buckle, the return mechanism plate, the spring control pin, and the transverse return spring constitute a self-locking return mechanism, which can automatically drive the movable magnet to approach the fixed magnet to achieve automatic adsorption. Because the end of the elastic buckle has a pressing bevel, located near the entrance of the transverse track, when the movable magnet is inserted through the transverse track, the elastic buckle is pressed and displaced, allowing the magnet to be smoothly inserted into the transverse track. In summary, this technical solution uses the principle of magnetic repulsion (like poles repel, unlike poles attract) to install the movable magnet from the transverse track, achieving the purpose of preventing mistaken insertion of the positive and negative poles. Furthermore, a self-locking return mechanism automatically drives the movable magnet towards the fixed magnet, achieving automatic adsorption. This solves the problems of existing magnet installation processes where the positive and negative poles of the magnet cannot be prevented from shifting, and the magnet displacement within the enclosed container cannot be detected.

[0008] Furthermore, to facilitate the pressing operation of the top rod and the reset of the top plate, thus providing operational convenience for magnet implantation, the top rod is equipped with a top plate, and the top plate is connected to a longitudinal guide rod. The longitudinal guide rod is slidably connected to the mounting plate, and a longitudinal reset spring is provided on the longitudinal guide rod, which is located between the mounting plate and the top plate.

[0009] Furthermore, in order to achieve a smoother operation, the mounting plate is provided with multiple guide sleeves and multiple longitudinal guide rods, which slide vertically with the corresponding guide sleeves.

[0010] Furthermore, to prevent the longitudinal guide rod from coming out, at least one longitudinal guide rod has a limiting end at its lower end, and the mounting plate is provided with a limiting hole. The limiting end abuts against the recess in the limiting hole to prevent the longitudinal guide rod from coming out.

[0011] Furthermore, a transverse push rod is provided at the proximal end of the regression mechanism plate, and the operating end of the transverse push rod extends out of the guide rail groove.

[0012] Once all the movable magnets in the transverse track are inserted into the mold, the elastic latch has completed its maximum transverse travel. After reinstalling the movable magnets in the transverse track, the elastic latch remains in its maximum transverse travel position. At this point, the transverse push rod needs to be manually pressed to drive the elastic latch back to its original state, that is, to abut against the outermost movable magnet, thus achieving self-locking onto the movable magnets in the transverse track. Then, the next cycle begins.

[0013] Furthermore, in order to improve the smoothness of the movement of the return mechanism plate, two spring control pins are provided on the return mechanism plate.

[0014] Furthermore, to facilitate the installation of the buckle, the elastic buckle includes a buckle, a screw, and a compression spring. The buckle is installed on the return mechanism plate by the screw, the compression spring is sleeved on the screw, and the compression spring is located in the spring groove of the buckle. The return mechanism plate is provided with a limiting groove, and the buckle slides in conjunction with the limiting groove.

[0015] Furthermore, to facilitate assembly, the mounting plate includes a front plate and a rear plate, with a positioning structure between the front and rear plates. The front plate has a strip-shaped positioning groove, and the rear plate has a strip-shaped positioning protrusion located within the strip-shaped positioning groove. The front and rear plates are fixedly connected by screws. The transverse and longitudinal tracks are both located within the front plate. The top rod and longitudinal guide rod are both vertically slidingly engaged with the front plate. The longitudinal return spring is located between the front plate and the top plate.

[0016] Furthermore, in order to improve the smoothness of the fit between the elastic buckle and the strip hole channel, the guide rail groove is set at the rear end of the rear plate. The strip hole channel includes a strip hole set on the front plate and a stepped strip hole set on the rear plate. The stepped surface of the stepped strip hole slides in fit with the stepped surface on the elastic buckle. After the elastic buckle passes through the stepped strip hole and the strip hole in sequence, its end extends into the transverse rail.

[0017] Furthermore, in order to facilitate the introduction of the movable magnet into the transverse track, a feeding guide opening is provided on one side of the inlet end of the transverse track.

[0018] The beneficial effects of this invention are as follows: In this technical solution, the mounting plate has interconnected horizontal and vertical tracks. Multiple mutually attracting movable magnets are arranged side-by-side in the horizontal track. The mounting plate is in the material-incoming state with these movable magnets attracted together. The movable magnets are sequentially installed into the mounting plate via the horizontal track. Since the movable magnet located at the intersection of the horizontal and vertical tracks is the end magnet, and the mounting plate contains a fixed magnet positioned directly opposite the horizontal track, the fixed magnet attracts the end magnet. When the movable magnet is installed in the horizontal track, it is attracted by the fixed magnet. Utilizing the magnetic principle of like poles repelling and unlike poles attracting, the correct installation of the movable magnet can be identified, achieving the purpose of preventing magnet error-taking. Because the push rod is vertically slidably connected to the mounting plate, the push rod pushes the end magnet into the mold below the vertical track via the vertical track. The push rod can be manually pressed to insert the end magnet into the mold below the vertical track via the vertical track. Because the rear end of the mounting plate has a guide rail groove, the return mechanism plate slides within the guide rail groove and engages with the inner wall of the guide rail groove. The return mechanism plate has a spring control pin, which extends from the end of the return mechanism plate and connects to the far end of the guide rail groove. The spring control pin has a transverse return spring, and the return mechanism plate has an elastic buckle. The mounting plate has a strip-shaped channel that connects to the rear of the transverse track. The elastic buckle passes through the strip-shaped channel and extends into the transverse track. The elastic buckle moves together with the return mechanism plate, and the end of the elastic buckle presses against the movable magnet. When the push rod is inserted into the end magnet through the longitudinal track, the transverse return spring drives the elastic buckle to automatically move. The elastic buckle acts on the movable magnet in the transverse track, pushing the movable magnet toward the fixed magnet for adsorption. The movable magnet in the transverse track may hesitate to adsorb with the fixed magnet due to the downward movement of the push rod. In this technical solution, the elastic buckle, the return mechanism plate, the spring control pin, and the transverse return spring constitute a self-locking return mechanism, which can automatically drive the movable magnet to approach the fixed magnet to achieve automatic adsorption. Because the end of the elastic buckle has a pressing bevel, located near the entrance of the transverse track, when the movable magnet is inserted through the transverse track, the elastic buckle is pressed and displaced, allowing the magnet to be smoothly inserted into the transverse track. In summary, this technical solution uses the principle of magnetic repulsion (like poles repel, unlike poles attract) to install the movable magnet from the transverse track, achieving the purpose of preventing mistaken insertion of the positive and negative poles. Furthermore, a self-locking return mechanism automatically drives the movable magnet towards the fixed magnet, achieving automatic adsorption. This solves the problems of existing magnet installation processes where the positive and negative poles of the magnet cannot be prevented from shifting, and the magnet displacement within the enclosed container cannot be detected. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2This is a first-view structural schematic diagram of the hidden components in this invention;

[0021] Figure 3 This is a structural schematic diagram from a second perspective of the hidden components in this invention;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the present invention from a rear view.

[0024] Figure 6 This is a bottom-view structural diagram of the present invention;

[0025] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point AA;

[0026] Figure 8 This is a rear view of the present invention;

[0027] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure at point BB;

[0028] Figure 10 This is a perspective view of the front plate and the elastic buckle in this invention;

[0029] Figure 11 This is a side view of the front panel and the elastic buckle in the invention.

[0030] Figure 12 for Figure 11 A schematic diagram of the cross-sectional structure of the C-C section;

[0031] Figure 13 This is a schematic diagram of the front plate and elastic buckle in this invention;

[0032] Figure 14 This is a schematic diagram of the structure of the rear plate and the elastic buckle in this invention;

[0033] Figure 15 This is a schematic diagram of the main structure of the rear plate and the elastic buckle in this invention;

[0034] Figure 16 for Figure 15 Schematic diagram of the cross-sectional structure of DD.

[0035] In the diagram: Mounting plate 1; Front plate 1.1; Rear plate 1.2; Top rod 2; Return mechanism plate 3; Limiting groove 3.1; Transverse track 4; Longitudinal track 5; Movable magnet 6; End magnet 7; Fixed magnet 8; Mold 9; Guide rail groove 10; Spring control pin 11; Transverse return spring 12; Elastic buckle 13; Buckle 13.1; Screw 13.2; Compression spring 13.3; Spring groove 13.4; Strip-shaped hole channel 14; Compression slope 15; Top plate 16; Longitudinal guide rod 17; Longitudinal return spring 18; Limiting hole 21; Recess 22; Transverse push rod 23; Strip-shaped hole 24; Stepped strip-shaped hole 25; Stepped surface 26; Feed guide opening 27; Strip-shaped positioning groove 28; Strip-shaped positioning protrusion 29. Detailed Implementation

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0037] Example 1:

[0038] like Figure 5 , Figure 7 , Figure 11 , Figure 12 As shown, this embodiment provides a magnet positive and negative pole anti-fooling self-locking return mechanism, including a mounting plate 1, a push rod 2 and a return mechanism plate 3. The mounting plate 1 is provided with a transverse track 4 and a longitudinal track 5 that are interconnected. Multiple movable magnets 6 that attract each other are arranged side by side in the transverse track 4. The movable magnet 6 located at the intersection of the transverse track 4 and the longitudinal track 5 is the end magnet 7. The mounting plate 1 is provided with a fixed magnet 8, which is located directly opposite the transverse track 4. The fixed magnet 8 attracts the end magnet 7 in the transverse track 4. The push rod 2 is vertically slidably connected to the mounting plate 1. The push rod 2 pushes the end magnet 7 in the transverse track 4 into the mold 9 below the longitudinal track 5 through the longitudinal track 5.

[0039] like Figure 5 As shown, the rear end of the mounting plate 1 is provided with a guide rail groove 10. The return mechanism plate 3 slides within the guide rail groove 10 and engages with the inner wall of the guide rail groove 10. The return mechanism plate 3 is provided with a spring control pin 11. The end of the spring control pin 11 extends out of the return mechanism plate 3 and connects to the far end of the guide rail groove 10. The spring control pin 11 is provided with a transverse return spring 12, as shown in the figure. Figure 4 , Figure 7 , Figure 9As shown, the return mechanism plate 3 is provided with an elastic buckle 13, and the mounting plate 1 is provided with a strip-shaped hole channel 14 that communicates with the rear of the transverse track 4. The elastic buckle 13 passes through the strip-shaped hole channel 14 and extends into the transverse track 4. The end of the elastic buckle 13 has a pressing slope 15, which is located on the side near the entrance end of the transverse track 4.

[0040] In this technical solution, the mounting plate 1 has interconnected horizontal and vertical tracks 4 and 5. Multiple movable magnets 6 are arranged side-by-side in the horizontal track 4, attracting each other. The mounting plate 1 is in the material receiving state when these movable magnets 6 are attracted together side-by-side. The movable magnets 6 are sequentially installed into the mounting plate 1 via the horizontal track 4. Since the movable magnet 6 located at the intersection of the horizontal track 4 and the vertical track 5 is the end magnet 7, and the mounting plate 1 has a fixed magnet 8 positioned directly opposite the horizontal track 4, the fixed magnet 8 attracts the end magnet 7 in the horizontal track 4. When the movable magnet 6 is installed into the horizontal track 4, it is attracted by the fixed magnet 8. Utilizing the magnetic principle of like poles repelling and unlike poles attracting, the correct installation of the movable magnet 6 can be identified, achieving the purpose of preventing magnet error. Since the push rod 2 is vertically slidably connected to the mounting plate 1, the push rod 2 pushes the end magnet 7 in the horizontal track 4 into the mold 9 below the vertical track 5 via the vertical track 5. The push rod 2 can be manually pressed to insert the end magnet 7 into the mold 9 below the vertical track 5. Since the rear end of the mounting plate 1 is provided with a guide rail groove 10, the return mechanism plate 3 slides within the guide rail groove 10 and engages with the inner wall of the guide rail groove 10. The return mechanism plate 3 is provided with a spring control pin 11, which extends from the end of the return mechanism plate 3 and connects to the far end of the guide rail groove 10. The spring control pin 11 is provided with a transverse reset spring 12. The return mechanism plate 3 is provided with an elastic buckle 13. The mounting plate 1 is provided with a strip-shaped hole channel 14 that communicates with the rear of the transverse track 4. The elastic buckle 13 passes through the strip-shaped hole channel 14 and extends into the transverse track 4. The elastic buckle 13 moves together with the return mechanism plate 3, and the end of the elastic buckle 13 presses against the movable magnet. When the push rod 2 is inserted into the end magnet 7 via the longitudinal track 5, the transverse return spring 12 drives the elastic buckle 13 to automatically displace via the return mechanism plate 3. The elastic buckle 13 acts on the movable magnet 6 in the transverse track 4, pushing the movable magnet 6 towards the fixed magnet 8 for adsorption. Due to the downward movement of the push rod 2, the movable magnet 6 in the transverse track 4 may hesitate in adsorption with the fixed magnet 8. In this technical solution, the elastic buckle 13, the return mechanism plate 3, the spring control pin 11, and the transverse return spring 12 constitute a self-locking return mechanism, which can automatically drive the movable magnet 6 to approach the fixed magnet 8 to achieve automatic adsorption. Since the end of the elastic buckle 13 has a pressing slope 15, which is located on the side near the entrance end of the transverse track 4, when the movable magnet 6 is inserted through the transverse track 4, the elastic buckle 13 is pressed and displaced so that the magnet can be smoothly inserted into the transverse track 4. In summary, this technical solution uses a horizontally inserted movable magnet 6 and a vertically inserted mold. By applying the magnetic principle that like poles repel and unlike poles attract, the movable magnet 6 is designed to be installed in the horizontal track 4 to prevent misalignment of the positive and negative poles. Furthermore, the self-locking return mechanism can automatically drive the movable magnet 6 to move closer to the fixed magnet 8, achieving automatic adsorption.This solves the problem that existing magnet installation processes cannot prevent the positive and negative poles of the magnet from being mistakenly inserted, and that magnets inside enclosed containers cannot detect displacement.

[0041] Example 2:

[0042] This embodiment is an optimization based on the above embodiment one.

[0043] like Figure 1 As shown, in order to facilitate the pressing operation of the top rod 2 and the reset of the top plate 16, and to provide operational convenience for the implantation of the magnet, the top rod 2 is provided with a top plate 16, the top plate 16 is connected to a longitudinal guide rod 17, the longitudinal guide rod 17 is slidably connected to the mounting plate 1, and a longitudinal reset spring 18 is provided on the longitudinal guide rod 17, the longitudinal reset spring 18 is located between the mounting plate 1 and the top plate 16.

[0044] Example 3:

[0045] This embodiment is an optimization based on the above embodiment two.

[0046] To achieve a smoother operation, the mounting plate 1 is provided with multiple guide sleeves (not shown in the figure) and multiple longitudinal guide rods 17, which slide vertically with the corresponding guide sleeves (not shown in the figure).

[0047] Example 4:

[0048] This embodiment is an optimization based on the above embodiment two.

[0049] To prevent the longitudinal guide rod 17 from disengaging, at least one longitudinal guide rod 17 has a limiting end at its lower end (not shown in the figure), such as... Figure 2 As shown, the mounting plate 1 is provided with a limiting hole 21, and the limiting end abuts against the recess 22 in the limiting hole 21 to prevent the longitudinal guide rod 17 from coming out.

[0050] Example 5:

[0051] This embodiment is an optimization based on the above embodiment one.

[0052] like Figure 5 As shown, a transverse push rod 23 is provided at the near end of the regressor plate 3, and the operating end of the transverse push rod 23 extends out of the guide rail groove 10.

[0053] After all the movable magnets 6 in the transverse track 4 are inserted into the mold 9, the elastic latch 13 has completed its maximum transverse movement. After the movable magnets 6 are reinstalled in the transverse track 4, the elastic latch 13 remains in its maximum transverse movement state. At this point, it is necessary to manually press the transverse push rod 23 to drive the elastic latch 13 back to its original state. Figures 6-8In the indicated state, the elastic buckle 13 is positioned away from the fixed magnet 8 and abuts against the movable magnet 6, that is, it abuts against the outermost movable magnet 6, thus achieving self-locking onto the movable magnet 6 of the transverse track 4. Then, the next cycle begins.

[0054] Example 6:

[0055] This embodiment is an optimization based on the above embodiment one.

[0056] like Figure 5 As shown, in order to improve the smoothness of the movement of the regression mechanism plate 3, two spring control pins 11 are provided on the regression mechanism plate 3.

[0057] Example 7:

[0058] This embodiment is an optimization based on the above embodiment one.

[0059] like Figure 9 As shown, to facilitate the installation of the buckle 13.1, the elastic buckle 13 includes a buckle 13.1, a screw 13.2, and a compression spring 13.3. The buckle 13.1 is installed on the return mechanism plate 3 by the screw 13.2, and the compression spring 13.3 is sleeved on the screw 13.2. The compression spring 13.3 is located in the spring groove 13.4 of the buckle 13.1. The return mechanism plate 3 is provided with a limiting groove 3.1, and the buckle 13.1 slides in conjunction with the limiting groove 3.1.

[0060] Example 8:

[0061] This embodiment is an optimization based on the above embodiment two.

[0062] like Figures 1-3 As shown, for ease of assembly, the mounting plate 1 includes a front plate 1.1 and a rear plate 1.2, with a positioning structure between the front plate 1.1 and the rear plate 1.2, specifically, as follows: Figure 10 , Figures 13-16 As shown, the front plate 1.1 has a strip-shaped positioning groove 28, and the rear plate 1.2 has a strip-shaped positioning protrusion 29. The strip-shaped positioning protrusion 29 is located within the strip-shaped positioning groove 28. The front plate 1.1 and the rear plate 1.2 are fixedly connected by screws. The transverse track 4 and the longitudinal track 5 are both set within the front plate 1.1, as shown. Figure 1 As shown, the top rod 2 and the longitudinal guide rod 17 are both in a vertical sliding fit with the front plate 1.1, and the longitudinal return spring 18 is located between the front plate 1.1 and the top plate 16.

[0063] Example 9:

[0064] This embodiment is an optimization based on the above embodiment eight.

[0065] To improve the smoothness of the fit between the elastic buckle 13 and the strip-shaped channel 14, the guide rail groove 10 is set at the rear end of the rear plate 1.2, such as... Figure 13 , Figure 14 , Figure 16 As shown, the strip-shaped channel 14 includes a strip-shaped hole 24 disposed on the front plate 1.1 and a stepped strip-shaped hole 25 disposed on the rear plate 1.2, as... Figure 16 As shown, the stepped surface of the stepped strip hole 25 slides into the stepped surface 26 on the elastic buckle 13. After the elastic buckle 13 passes through the stepped strip hole 25 and the strip hole 24 in sequence, its end extends into the transverse track 4.

[0066] Example 10:

[0067] This embodiment is an optimization based on the above embodiment one.

[0068] like Figure 4 As shown, in order to facilitate the introduction of the movable magnet 6 into the transverse track 4, a feed guide opening 27 is provided on one side of the inlet end of the transverse track 4.

[0069] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A magnet positive and negative pole anti-fumble card position self-locking return mechanism, characterized in that: The installation plate is internally provided with a transverse track and a longitudinal track which are communicated with each other, a plurality of movable magnets which are mutually adsorbed are arranged side by side in the transverse track, the movable magnet located at the intersection of the transverse track and the longitudinal track is a terminal magnet, the installation plate is internally provided with a fixed magnet, the fixed magnet is located opposite to the transverse track, the fixed magnet adsorbs the terminal magnet in the transverse track, the ejector rod is vertically and slidingly connected with the installation plate, and the ejector rod pushes the terminal magnet in the transverse track into a mold below the longitudinal track through the longitudinal track. The rear end of the installation plate is provided with a guide rail groove, the return mechanism plate is slidingly matched with the inner side wall of the guide rail groove in the guide rail groove, the return mechanism plate is provided with a spring control needle, the end of the spring control needle extending out of the return mechanism plate is connected with the distal end of the guide rail groove, the spring control needle is provided with a transverse reset spring, the return mechanism plate is provided with an elastic buckle, the installation plate is provided with a strip-shaped hole channel which is communicated with the rear of the transverse track, the elastic buckle penetrates through the strip-shaped hole channel and goes deep into the transverse track, the end of the elastic buckle is provided with an extrusion inclined surface, and the extrusion inclined surface is located on the side close to the inlet end of the transverse track.

2. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 1, characterized in that: The ejector rod is provided with a top plate, the top plate is connected with a longitudinal guide rod, the longitudinal guide rod is vertically and slidingly connected with the installation plate, and the longitudinal guide rod is provided with a longitudinal reset spring which is located between the installation plate and the top plate.

3. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 2, characterized in that: The installation plate is internally provided with a plurality of guide sleeves, and the longitudinal guide rod has a plurality of roots, and the plurality of roots of the longitudinal guide rod are vertically and slidingly matched with the corresponding guide sleeves.

4. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 2, characterized in that: The lower end of at least one longitudinal guide rod is provided with a limiting end, the installation plate is internally provided with a limiting hole, and the limiting end is abutted with a recess in the limiting hole to prevent the longitudinal guide rod from being pulled out.

5. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 1, characterized in that: The proximal end of the return mechanism plate is provided with a transverse push rod, and the operating end of the transverse push rod extends out of the guide rail groove.

6. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 1, characterized in that: The return mechanism plate is provided with two spring control needles.

7. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 1, characterized in that: The elastic buckle comprises a buckle, a screw and an extrusion spring, the buckle is mounted on the return mechanism plate through the screw, the extrusion spring is sleeved on the screw, the extrusion spring is located in the spring groove of the buckle, the return mechanism plate is provided with a limiting groove, and the buckle is slidingly matched with the limiting groove.

8. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 2, characterized in that: The installation plate comprises a front plate and a rear plate, the front plate and the rear plate are provided with a positioning structure therebetween, the front plate is provided with a strip-shaped positioning groove, the rear plate is provided with a strip-shaped positioning protrusion, the strip-shaped positioning protrusion is located in the strip-shaped positioning groove, the front plate and the rear plate are fixedly connected through screws, the transverse track and the longitudinal track are arranged in the front plate, the ejector rod and the longitudinal guide rod are vertically and slidingly matched with the front plate, and the longitudinal reset spring is located between the front plate and the top plate.

9. The magnet positive and negative pole anti-fumble clamping and self-locking return mechanism according to claim 8, characterized in that: The guide rail groove is arranged at the rear end of the rear plate, the strip-shaped hole channel comprises a strip-shaped hole arranged on the front plate and a stepped strip-shaped hole arranged on the rear plate, the stepped surface of the stepped strip-shaped hole is slidingly matched with the stepped surface on the elastic buckle, and the end of the elastic buckle extends into the transverse track after penetrating through the stepped strip-shaped hole and the strip-shaped hole in sequence.

10. The magnet positive and negative pole anti-fumble card position self-locking return mechanism according to claim 1, characterized in that: The side of the inlet end of the transverse track is provided with a feeding guide opening.

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