A screening and feeding device and screening method for a curved surface permanent magnet

Abstract

The present invention relates to the technical field of electric vehicle component processing, and particularly relates to a screening and feeding device for a curved-surface permanent magnet, which includes a vibrating disk feeder and a permanent magnet. The vibrating disk feeder includes a vibrating disk body, an inner ring frame, an outer ring frame and a spiral feeding plate arranged on the vibrating disk body; it also includes a screening and conveying track, one end of the screening and conveying track is connected to the outer end of the top of the spiral feeding plate, and a sorting mechanism is arranged at the part where the spiral feeding plate is connected to the screening and conveying track; an upwardly inclined inner baffle is arranged inside the screening and conveying track, and an outer baffle is arranged vertically outside; a turning mechanism and a facing judgment and rejection mechanism are arranged on the screening and conveying track. By combining the screening and conveying track, the inner baffle, the outer baffle, the turning mechanism and the judgment and rejection mechanism, the present invention ensures that the finally output permanent magnets can all face the inner baffle with the plane, and the curved surface of the permanent magnet faces upward due to the decrease in the angle of the inner baffle, so as to mark the curved surface. The efficiency of screening and turning is high, the automation is strong, and the time and labor costs are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle component processing, and particularly relates to a screening and feeding device and a screening method for a curved surface magnet steel. Background Art

[0002] Among the components of working and transportation devices, especially in vehicles, magnets are used in many structures. For example, in wheels, magnets can play roles such as maintaining the rotational balance of the wheels and preventing nut loosening. Magnets come in various shapes and sizes.

[0003] There is a type of magnet for the rear wheel of an electric vehicle, which is formed in a cube shape, but one of its larger surfaces is a curved surface and the other relatively larger surface is a flat surface. Before the magnet is installed on the device, it generally needs to be marked. The above-mentioned magnet with a curved surface needs to be marked on the curved surface. However, the quantity of the produced magnets is very large. If each magnet is manually turned over and marked one by one, it will waste a lot of time and manpower and increase costs. Summary of the Invention

[0004] The present invention provides a screening and feeding device and a screening method for a curved surface magnet steel to achieve the purpose of automatically screening and turning over the magnet steel to improve processing efficiency and save time and manpower.

[0005] To achieve the above object, the technical solution of the present invention is: to provide a screening and feeding device for a curved surface magnet steel, including a vibrating disk feeder and a magnet steel. The vibrating disk feeder includes a vibrating disk body, an inner ring frame, an outer ring frame, and a spiral feeding plate for conveying the magnet steel arranged on the vibrating disk body. The inner ring frame is arranged inside the outer ring frame and outside the spiral feeding plate, and the outer ring frame is arranged on the periphery of the upper surface of the vibrating disk body. Its innovation lies in: further including a screening and conveying track arranged between the inner ring frame and the outer ring frame; the top end of the spiral feeding plate extends above the inner ring frame, and the outer end of the top of the spiral feeding plate is connected to one end of the screening and conveying track. A sorting mechanism is arranged at the part where the spiral feeding plate is connected to the screening and conveying track, and the other end of the screening and conveying track extends out of the outer ring frame; an upwardly inclined inner baffle is arranged inside the screening and conveying track, and an outer baffle is arranged vertically outside; a turning mechanism and a facing judgment and rejection mechanism are also arranged on the screening and conveying track. Taking the conveying direction as the front, the facing judgment and rejection mechanism is located in front of the turning mechanism; an upper feeding baffle is also arranged on the periphery of the part where the spiral feeding plate extends above the inner ring frame.

[0006] Furthermore, the screening and conveying track is inclined, and the inclined lower end is connected to the inner baffle; the inclination angle of the inclination of the screening and conveying track is 35 - 45 degrees; the width of the blocking surface of the outer baffle is shorter than the width of the blocking surface of the inner baffle and longer than the width of the screening and conveying track. When the relatively larger flat surface or curved surface of the magnet steel fits against the inner baffle and moves, the width of the screening and conveying track matches the width of the surface of the magnet steel in contact with the screening and conveying track.

[0007] Further, the sorting mechanism includes an inverted L-shaped material separating member. The horizontal end of the material separating member is connected to the feeding baffle, and the vertical lower end is connected to the end of the spiral feeding plate. The material separating member, the feeding baffle, and the spiral feeding plate form a feeding through groove, and the size of the feeding through groove is such that one magnetic steel can pass through.

[0008] Further, the end of the inner baffle near the sorting mechanism and the upper end of the spiral feeding plate are on the same plane. The inclination angle of the inner baffle gradually increases along the conveying direction until it is perpendicular to the screening and conveying track and then no longer increases.

[0009] Further, the turning mechanism includes a turning vibrator and a turning plate. The turning vibrator is arranged on the inner side of the inner baffle, and the turning plate is arranged on the outer side of the screening and conveying track. There is no outer baffle at the part where the turning plate is arranged, and the turning plate is correspondingly arranged outside the turning vibrator; the part where the turning plate is connected to the screening and conveying track is a curved surface; a guiding member inclined inwards is also provided at the front end of the turning plate.

[0010] Further, the end of the outer baffle in front of the turning plate and the turning plate are on the same plane, and the inclination angle of the outer baffle in front of the turning plate gradually increases along the conveying direction until it is vertically upward.

[0011] Further, the facing judgment and rejection mechanism includes a judgment vibrator. The judgment vibrator is arranged on the inner side of the inner baffle, and there is no outer baffle on the outer side of the screening and conveying track corresponding to where the judgment vibrator is arranged.

[0012] Further, the inclination angle of the end of the inner baffle far from the sorting mechanism gradually decreases along the conveying direction until it is horizontally arranged, and the magnetic steel is face down and the curved surface is up on the plane of this end of the inner baffle.

[0013] Further, it further includes a guiding plate. There is a feeding opening at the position of the inner ring frame close to the bottom of the spiral feeding plate. The guiding plate is arc-shaped, and one end is connected to the inner side of the outer ring frame, and the other end is connected to the side of the feeding opening. The feeding opening communicates inside and outside the inner ring frame; there is a discharging opening at the part where the outer ring frame extends out of the outer ring frame corresponding to the screening and conveying track. The discharging opening is not arranged directly below the corresponding screening and conveying track; the screening and conveying track is connected to the inner ring frame through several connecting rods;

[0014] The inner side of the spiral feeding plate is higher than the outer side.

[0015] To achieve the above object, the present invention also provides a screening method for the screening and feeding device for curved surface magnetic steel based on the above, and its innovation lies in: specifically including the following steps:

[0016] S1. Vibration feeding: Place all the magnetic steels to be screened on the main body of the vibrating bowl and within the inner ring frame. Due to the vibration of the vibrating bowl, the magnetic steels are gradually conveyed upward through the spiral feeding plate. The relatively larger planar or curved surfaces of the magnetic steels come into contact with the spiral feeding plate during vibration for conveyance. Since the inner side of the spiral feeding plate is higher than the outer side, the magnetic steels are conveyed closer to the outer side on the spiral feeding plate, that is, closer to the inner ring frame, until they are conveyed to the top of the spiral feeding plate.

[0017] S2. Sorting and conveying: The magnetic steels conveyed to the top of the spiral feeding plate enter the screening and conveying track one by one through the feeding through slots. Since the end of the inner baffle close to the spiral feeding plate and the upper end of the spiral feeding plate are on the same plane, the planar or curved surface of the magnetic steel just entering the screening and conveying track is located on the screening and conveying track and the inner baffle. As it moves with vibration, the inclination angle of the inner baffle gradually increases. And because the width of the blocking surface of the inner baffle is longer than the width of the screening and conveying track, the planar or curved surface of the magnetic steel gradually moves obliquely with the inner baffle, while the side surface between the planar and curved surfaces of the magnetic steel contacts the screening and conveying track for movement.

[0018] S3. Orientation judgment and flipping: When the magnetic steel is conveyed to the position corresponding to the flipping vibrator on the screening and conveying track;

[0019] S31. If the side surface close to the inner baffle is planar and is in complete contact and fit with the inner baffle, due to the gravity of the magnetic steel itself, the vibration of the flipping vibrator is not sufficient to cause the magnetic steel to slide out of the screening and conveying track, and the magnetic steel still moves forward along the inner baffle within the screening and conveying track.

[0020] S32. If the side surface close to the inner baffle is curved and has a small contact area with the inner baffle, the contact is unstable. Under the double vibration of the vibrating bowl body and the flipping vibrator, the magnetic steel is vibrated and bounced up, and slides out of the screening and conveying track and onto the flipping plate. On the flipping plate, the curved surface of the magnetic steel faces down and the planar surface faces up, and it continues to move forward due to the vibration of the vibrating bowl body on the flipping plate.

[0021] S33. Since the end of the outer baffle in front of the flipping plate and the flipping plate are on the same plane, through the guidance of the guiding member, the magnetic steel gradually moves forward onto the outer baffle and the screening and conveying track, and continues to move forward due to vibration. As the inclination angle of the outer baffle gradually increases, and because the width of the blocking surface of the outer baffle is longer than the width of the screening and conveying track, the curved surface of the magnetic steel fits with the outer baffle and is gradually lifted and inclined until the outer baffle is in a vertical position, and the magnetic steel falls and fits with the inner baffle, causing the planar surface of the magnetic steel to contact the inner baffle for continued conveyance.

[0022] S4. Judgment and rejection during forward conveyance: When the magnet moves forward on the screening and conveying track to the judgment vibrator, the magnet in planar contact with the inner baffle continues to move forward on the screening and conveying track. If there are still magnets in curved surface contact with the inner baffle, due to the unstable curved surface contact, they will be vibrated out of the screening and conveying track by the judgment vibrator and fall onto the top surface of the vibrating disk body between the inner ring frame and the outer ring frame.

[0023] S5. Outward conveyance: The magnets that fall onto the top surface of the vibrating disk body between the inner ring frame and the outer ring frame are conveyed to the feeding opening due to the vibration of the vibrating disk, enter the inner ring frame and continue vibrating for feeding, repeating steps S1 - S4; Since the magnets in planar contact with the inner baffle are conveyed on the screening and conveying track until the inclination angle of the inner baffle gradually decreases until it is horizontal, the magnets are on the upper surface of the curved surface of the inner baffle with the curved surface facing up.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] The screening and feeding device with curved surface magnets of the present invention combines a screening and conveying track, an inner baffle, an outer baffle, a turning mechanism, and a judgment and rejection mechanism to judge the orientation of the magnets that are sorted one by one by the vibrating disk and sent to the screening and conveying track. Those with the plane facing the inner baffle are directly conveyed forward, and those with the curved surface facing the inner baffle are turned over by the turning mechanism to ensure that the finally output magnets can all have the plane facing the inner baffle, and the curved surface of the magnet faces up due to the decreasing angle of the inner baffle, thereby marking the curved surface. The screening and turning efficiency is high, the automation is strong, and the time and labor costs are saved. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the screening and feeding device with curved surface magnets of the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of the vibrating disk feeder in the screening and feeding device with curved surface magnets of the present invention.

[0029] Figure 3 For the present invention Figure 1 The enlarged view at position A.

[0030] Figure 4 For the present invention Figure 1 The enlarged view at position B.

[0031] Figure 5 Structural schematic diagram of the flip panel of the present invention with a permanent magnet provided thereon. Figure 4

[0032] Figure 6 Cross-sectional view on the screening and conveying track between the permanent magnet to be flipped of the present invention and the flipping mechanism when the permanent magnet enters the flipping mechanism.

[0033] Figure 7 Cross-sectional view when the permanent magnet to be flipped of the present invention slides into the flip panel.

[0034] Figure 8 Cross-sectional view when the permanent magnet to be flipped of the present invention slides into the flip panel.

[0035] Figure 9 Cross-sectional view when the permanent magnet to be flipped of the present invention is guided by a guiding member and enters the outer baffle.

[0036] Figure 10 Of the present invention Figure 9 Cross-sectional view with the inclination angle of the outer baffle in the present invention increased.

[0037] Figure 11 Of the present invention Figure 10 Cross-sectional view when the outer baffle in the present invention is vertically arranged and the permanent magnet falls and adheres to the inner baffle.

[0038] Figure 12 Of the present invention Figure 1 Enlarged view at position C in the present invention.

[0039] Figure 13 Cross-sectional view when the permanent magnet of the present invention is vibrated and ejected at the judgment and rejection mechanism.

[0040] Figure 14 Cross-sectional view when the permanent magnet of the present invention is conveyed to the end on the screening and conveying track.

[0041] Figure 15 Structural schematic diagram of the inner side surface of the spiral feeding plate of the present invention being higher than the outer side surface.

[0042] Figure 16 A screening method for a curved permanent magnet of the present invention.

[0043] Wherein, 1. Permanent magnet; 2. Vibration disk body; 3. Inner ring frame; 4. Outer ring frame; 5. Spiral feeding plate; 6. Screening and conveying track; 7. Sorting mechanism; 71. Spacing member; 72. Feeding through groove; 8. Flipping mechanism; 81. Flipping vibrator; 82. Flip panel; 83. Guiding member; 9. Judgment and rejection mechanism; 91. Judgment vibrator; 10. Inner baffle; 11. Outer baffle; 12. Feeding baffle; 13. Guiding plate; 14. Feeding opening; 15. Discharging opening; 16. Connecting rod. Detailed implementation manners​

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment 1

[0046] This embodiment provides a screening and feeding device including a curved surface magnet 1, a vibrating disk feeder, and the magnet 1. The vibrating disk feeder includes a vibrating disk body 2, an inner ring frame 3, an outer ring frame 4, and a spiral feeding plate 5 for feeding the magnet 1. The inner ring frame 3 is disposed within the outer ring frame 4 and outside the spiral feeding plate 5, and the outer ring frame 4 is disposed at the periphery of the upper surface of the vibrating disk body 2. As Figure 1 and 2 shown, it further includes a screening and conveying track 6 disposed between the inner ring frame 3 and the outer ring frame 4. The top end of the spiral feeding plate 5 extends above the inner ring frame 3, and the outer end of the top of the spiral feeding plate 5 is connected to one end of the screening and conveying track 6. A sorting mechanism 7 is provided at the connection part of the spiral feeding plate 5 and the screening and conveying track 6, and the other end of the screening and conveying track 6 extends outside the outer ring frame 4. An upwardly inclined inner baffle 10 is provided inside the screening and conveying track 6, and an outer baffle 11 is provided vertically outside. A turning mechanism 8 and a facing judgment and rejection mechanism 9 are also provided on the screening and conveying track 6. With the conveying direction as the front, the facing judgment and rejection mechanism 9 is located in front of the turning mechanism 8. An upper feeding baffle 12 is also provided around the part where the spiral feeding plate 5 extends above the inner ring frame 3.

[0047] The combination of the screening and conveying track 6, the inner baffle 10, the outer baffle 11, the turning mechanism 8, and the judgment and rejection mechanism 9 provided in this embodiment is used to judge the orientation of the magnet 1 that is sent to the screening and conveying track 6 one by one after being sorted by the vibrating disk. Those with the plane facing the inner baffle 10 are directly conveyed forward, and those with the curved surface facing the inner baffle 10 are turned over through the turning mechanism 8 and the inner baffle 10 and the outer baffle 11 in front of the turning mechanism 8 to ensure that the finally output magnets 1 can all have the plane facing the inner baffle 10, and the curved surface of the magnet 1 faces upward due to the decrease in the angle of the inner baffle 10, thereby marking the curved surface. The efficiency of screening and turning over is high, the automation is strong, and the time and labor costs are saved.

[0048] This embodiment can also screen out and reject the magnets 1 with the curved surface still facing the inner baffle 10 after passing through the turning mechanism 8 by the judgment and rejection mechanism 9, further ensuring the upward rate of the curved surface when the magnets 1 are output. The vibration of the vibrating disk in this embodiment causes the material to move and be conveyed counterclockwise.

[0049] Embodiment 2

[0050] The screening and conveying track 6 of this embodiment is inclined, and the lower inclined end is connected to the inner baffle 10; the inclination angle of the screening and conveying track 6 is 35 - 45 degrees; the width of the blocking surface of the outer baffle 11 is shorter than that of the inner baffle 10 and longer than the width of the screening and conveying track 6. When the relatively larger plane or curved surface of the magnet 1 fits and moves along the inner baffle 10, the width of the screening and conveying track 6 matches the width of the surface where the magnet 1 contacts the screening and conveying track 6.

[0051] The rest is the same as in Embodiment 1.

[0052] In this embodiment, the relatively larger plane or curved surface refers to that the magnet 1 in the present invention is cube-shaped, but one of the larger surfaces is a curved surface. Among the six surfaces of a shape similar to a cuboid, there are two relatively largest opposite surfaces, and one of these two surfaces is a curved surface, which is the shape of the magnet 1 in the present invention. When one of the larger surfaces fits and moves along the inner baffle 10, the surface between the two larger surfaces will move in contact with the inside of the screening and conveying track 6.

[0053] Embodiment 3

[0054] The sorting mechanism 7 of this embodiment includes an inverted L-shaped material separating member 71. As Figure 3 shown, the horizontal end of the material separating member 71 is connected to the feeding baffle 12, and the vertical lower end is connected to the end of the spiral feeding plate 5. The material separating member 71, the feeding baffle 12, and the spiral feeding plate 5 form a feeding through groove 72, and the size of the feeding through groove 72 is such that one magnet 1 can pass through.

[0055] Preferably, the end of the inner baffle 10 close to the sorting mechanism 7 and the upper end of the spiral feeding plate 5 are on the same plane, and the inclination angle of the inner baffle 10 gradually increases along the conveying direction until it is perpendicular to the screening and conveying track 6 and then stops increasing.

[0056] The rest is the same as in Embodiment 2.

[0057] The setting of the sorting mechanism 7 can prevent the magnets 1 conveyed from the spiral feeding plate 5 from overlapping and entering the screening and conveying track 6, which may affect the turning and judgment and rejection of the magnets 1 by the subsequent turning mechanism 8 and judgment and rejection mechanism 9, ensuring that the materials pass through the screening and conveying track 6 one by one in an orderly manner for individual judgment, turning, or rejection, and ensuring the orderly progress of automatic screening.

[0058] Since the magnet 1 is fed onto the spiral feeding plate 5 through the vibration of the vibrating bowl main body, it can ensure that the larger surface of the magnet 1 is in contact with the spiral feeding plate 5 during transportation. The end of the inner baffle 10 close to the sorting mechanism 7 and the upper end of the spiral feeding plate 5 are on the same plane, which can ensure that most of the bottom surface of the magnet 1 entering the screening and conveying track 6 is in contact with the inner baffle 10, ensuring that when the inner baffle 10 is tilted and lifted later, the larger plane or curved surface of the magnet 1 moves along with the tilt and contacts the inner baffle 10.

[0059] Embodiment 4

[0060] The turning mechanism 8 of this embodiment includes a turning vibrator 81 and a turning plate 82, as Figure 4 and 5 shown. The turning vibrator 81 is arranged on the inner side of the inner baffle 10, and the turning plate 82 is arranged on the outer side of the screening and conveying track 6. There is no outer baffle 11 at the position where the turning plate 82 is arranged, and the turning plate 82 is correspondingly arranged outside the turning vibrator 81; the connecting part between the turning plate 82 and the screening and conveying track 6 is a curved surface; a guiding member 83 inclined inward is also provided at the front end of the turning plate 82.

[0061] Preferably, the end of the outer baffle 11 in front of the turning plate 82 in this embodiment is on the same plane as the turning plate 82, and the inclination angle of the outer baffle 11 in front of the turning plate 82 gradually increases along the conveying direction until it is set vertically upward.

[0062] The rest is the same as Embodiment 3.

[0063] When this embodiment is specifically used, if it moves in contact with the inner baffle 10 on a plane, due to the inclined movement and the plane being completely in contact with the inner baffle 10, the contact is stable, and the vibration of the turning vibrator 81 is not sufficient to make it pop out; if it moves in contact with the inner baffle 10 on a curved surface, the contact between the curved surface and the plane is only a small surface contact or point contact. Even in the case of a small surface contact, each part of the contact surface is not completely in contact due to the curved surface, that is, the contact is not compact and not in contact, resulting in being easily lifted and sliding out of the screening and conveying track 6 when receiving the vibration from the inner side of the inner baffle 10. The fact that the connecting part between the turning plate 82 and the screening and conveying track 6 is a curved surface makes it even more likely that when the magnet 1 vibrates and bounces, the magnet 1 slides out of the screening and conveying track 6 due to the contact between the curved surface of the magnet 1 and the curved surface of the connecting part of the screening and conveying track 6, so that the magnet 1 finally slides onto the turning plate 82 with its curved surface facing down.

[0064] The guiding plate 13 of this embodiment can accurately guide the magnet 1 on the turning plate 82 forward onto the outer baffle 11. The end of the outer baffle 11 in front of the turning plate 82 is on the same plane as the turning plate 82, and this setting facilitates the magnet 1 to be directly guided onto the outer baffle 11.

[0065] Embodiment 5

[0066] The facing judgment and rejection mechanism 9 of this embodiment includes a judgment vibrator 91, asFigure 12 As shown in the figure, it is judged that the judging vibrator 91 is arranged on the inner side surface of the inner baffle 10, and there is no outer baffle 11 on the outer side of the screening and conveying track corresponding to the judging vibrator 91.

[0067] The rest is the same as in Embodiment 4.

[0068] The principle of the judging and rejecting mechanism 9 and the turning mechanism 8 in this embodiment is the same. Only the turning panel 82 is not provided in the judging and rejecting mechanism, and there is no outer baffle 11 at the position corresponding to the judging vibrator 91. When the magnet 1 with the curved surface still facing the inner baffle 10 is vibrated and ejected by the judging vibrator 91, due to the absence of the enclosure of the outer baffle 11, it falls downward onto the vibrating disk body for rejection.

[0069] Embodiment 6

[0070] In this embodiment, the end of the inner baffle 10 far from the sorting mechanism 7 is inclined at a gradually decreasing angle along the conveying direction until it is horizontally arranged. The magnet 1 has the flat surface facing down and the curved surface facing up at the end of the inner baffle 10.

[0071] The rest is the same as in Embodiment 5.

[0072] After passing through the judging and rejecting mechanism 9, when the magnet 1 with the flat surface fitting the inner baffle 10 is conveyed to the end of the screening and conveying track 6, due to the horizontal setting of the inner baffle 10, the curved surface of the magnet 1 faces up. In actual use, a conveyor belt can be connected to the conveying end of the screening and conveying track 6 to convey the magnet 1 with the curved surface facing up to the next process for marking and printing.

[0073] Embodiment 7

[0074] This embodiment further includes a guiding plate 13 on the basis of Embodiment 6. There is a feeding opening 14 at a position where the inner ring frame 3 is close to the bottom of the spiral feeding plate 5. The guiding plate 13 is arc-shaped, with one end connected to the inner side surface of the outer ring frame 4 and the other end connected to the side surface of the feeding opening 14. The feeding opening 14 communicates with the inside and outside of the inner ring frame 3; the outer ring frame 4 is provided with a discharging opening 15 corresponding to the part where the screening and conveying track 6 extends out of the outer ring frame 4, and the discharging opening 15 is not arranged directly below the corresponding screening and conveying track 6; the screening and conveying track 6 is connected to the inner ring frame 3 through several connecting rods 16.

[0075] Preferably, the inner side surface of the spiral feeding plate 5 in this embodiment is higher than the outer side surface, as Figure 15 shown.

[0076] The rest is the same as in Embodiment 1.

[0077] The main function of the guiding plate 13 in this embodiment is to guide the magnets 1 rejected by the judging and rejecting mechanism 9 into the inner ring frame 3, so that the rejected magnets 1 are fed and screened again.

[0078] The inner side of the spiral feeding plate 5 is higher than the outer side, which can ensure that the magnet 1 is located on the outer side when vibrating and feeding on the spiral feeding plate 5. When feeding to the upper end of the spiral feeding plate 5, the magnet 1 is located at the outer end of the spiral feeding plate 5, facilitating entry into the screening and conveying track through the feeding slot 72.

[0079] Embodiment 8

[0080] This embodiment provides a screening method for a screening and feeding device with a curved magnet 1 based on the above Embodiments 1-7. As Figure 16 shown, it specifically includes the following steps:

[0081] S1. Vibrating feeding: Place the magnets 1 to be screened on the main body of the vibrating disk and within the inner ring frame 3. Due to the vibration of the vibrating disk, the magnets 1 are gradually conveyed upward through the spiral feeding plate 5. The relatively larger planar or curved surface of the magnet 1 contacts the spiral feeding plate 5 during vibration for conveyance; since the inner side of the spiral feeding plate 5 is higher than the outer side, the magnet 1 is conveyed outward on the spiral feeding plate 5, that is, close to the inner ring frame 3, until it is conveyed to the top of the spiral feeding plate 5.

[0082] S2. Sorting and conveying: The magnets 1 conveyed to the top of the spiral feeding plate 5 enter the screening and conveying track 6 one by one through the feeding slot 72. Since the inner baffle 10 is close to the end of the spiral feeding plate 5 and the upper end of the spiral feeding plate 5 is on the same plane, the planar or curved surface of the magnet 1 just entering the screening and conveying track 6 is on the screening and conveying track 6 and the inner baffle 10. As it moves with vibration, the inclination angle of the inner baffle 10 gradually increases. And because the width of the blocking surface of the inner baffle 10 is longer than the width of the screening and conveying track 6, the planar or curved surface of the magnet 1 gradually moves obliquely along with the inner baffle 10, and the side surface between the planar and curved surfaces of the magnet 1 contacts the screening and conveying track 6 for movement. As Figure 6 shown, it is the curved surface fitting and moving obliquely along with the inner baffle 10.

[0083] S3. Facing judgment and turning over: When the magnet 1 is conveyed to the position corresponding to the turning-over vibrator 81 on the screening and conveying track 6;

[0084] S31. If the side surface close to the inner baffle 10 is a plane and is in complete contact and fitting with the inner baffle 10, due to the gravity of the magnet 1 itself, the vibration of the turning-over vibrator 81 is not sufficient to cause the magnet 1 to slide out of the screening and conveying track 6, and the magnet 1 still conveys forward along the inner baffle 10 within the screening and conveying track 6.

[0085] S32. If the side surface close to the inner baffle 10 is a curved surface and the contact area with the inner baffle is small and the contact is unstable, under the double vibration of the vibrating disk body 2 and the turning-over vibrator 81, the magnet 1 is vibrated and bounced up, as Figure 7 shown, and slides out of the screening and conveying track 6 and slides onto the turning-over plate 82. On the turning-over plate 82, the curved surface of the magnet 1 faces downward and the planar surface faces upward.Figure 8 As shown, it continues to move forward on the turnover panel 82 due to the vibration of the vibrating bowl body 2;

[0086] S33. Since the end of the outer baffle 11 in front of the turnover panel 82 and the turnover panel 82 are in the same plane, through the guidance of the guide 83, the magnet 1 gradually moves forward to the outer baffle 11 and the screening and conveying track 6, as Figure 9 shown, and continues to move forward due to vibration. As the inclination angle of the outer baffle 11 gradually increases, and since the width of the contact surface of the outer baffle 11 is longer than the width of the screening and conveying track 6, the curved surface of the magnet 1 that fits the outer baffle 11 is gradually lifted and inclined, as Figure 10 shown, until the outer baffle 11 is in a vertical position, and the magnet 1 falls and fits against the inner baffle 10, as Figure 11 shown, so that the plane of the magnet 1 contacts the inner baffle 10 and continues to be conveyed;

[0087] S4. Face judgment and rejection: When the magnet 1 is conveyed forward on the screening and conveying track 6 to the judgment vibrator 91, the magnet 1 with its plane contacting the inner baffle 10 continues to be conveyed forward on the screening and conveying track 6. If there are still magnets 1 with their curved surfaces contacting the inner baffle 10, they will be vibrated and ejected from the screening and conveying track 6 by the judgment vibrator 91 due to the unstable curved surface contact, as Figure 13 shown, and fall onto the top surface of the vibrating bowl main body between the inner ring frame 3 and the outer ring frame 4;

[0088] S5. Outward conveying: The magnet 1 that falls onto the top surface of the vibrating bowl main body between the inner ring frame 3 and the outer ring frame 4 is conveyed to the feeding opening 14 due to the vibration of the vibrating bowl and enters the inner ring frame 3 to continue vibrating feeding, repeating steps S1 - S4; The magnet 1 with its plane contacting the inner baffle 10 is conveyed on the screening and conveying track 6 until the inclination angle of the inner baffle 10 gradually decreases until it is horizontal, as Figure 14 shown, and the magnet 1 has its curved surface facing up on the inner baffle 10.

[0089] The above-described embodiments are only described as the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary engineering and technical personnel in the art to the technical solutions of the present invention should fall within the protection scope of the present invention. The technical content for which the present invention requests protection has been fully recorded in the claims.

Claims

1. A screening and feeding device containing curved magnetic steel, comprising a vibrating plate feeder and magnetic steel, wherein the vibrating plate feeder comprises a vibrating plate body and an inner ring frame, an outer ring frame and a spiral feeding plate for conveying magnetic steel arranged on the vibrating plate body, wherein the inner ring frame is arranged inside the outer ring frame and outside the spiral feeding plate, and the outer ring frame is arranged on the periphery of the upper surface of the vibrating plate body; characterized in that: It also includes a screening conveying track, which is arranged between the inner ring frame and the outer ring frame; the top of the spiral feeding plate extends above the inner ring frame, and the outer end of the top of the spiral feeding plate is connected to one end of the screening conveying track, and a sorting mechanism is provided at the position where the spiral feeding plate is connected to the screening conveying track, and the other end of the screening conveying track is extended out of the outer ring frame; an inner baffle plate inclined upward is provided on the inner side of the screening conveying track, and an outer baffle plate is vertically provided on the outer side; a turning mechanism and a facing judgment and rejection mechanism are also provided on the screening conveying track, with the conveying direction as the front, and the facing judgment and rejection mechanism is located in front of the turning mechanism; a feeding baffle plate is also provided on the periphery of the position where the spiral feeding plate extends above the inner ring frame; The flipping mechanism includes a flipping vibrator and a flipping panel. The flipping vibrator is arranged on the inner side of the inner baffle plate, and the flipping panel is arranged on the outer side of the screening and conveying track. The position where the flipping panel is provided is not provided with an outer baffle plate, and the flipping panel is correspondingly arranged on the outer side of the flipping vibrator; the position where the flipping panel and the screening and conveying track are connected is a curved surface; the front end of the flipping panel is also provided with a guide member inclined inward.

2. A screening and feeding device containing curved magnetic steel according to claim 1, characterized in that: The screening and conveying track is arranged to be inclined, and the inclined lower end is connected to the inner baffle plate; the inclination angle of the screening and conveying track is 35-45 degrees; the width of the outer baffle plate baffle surface is shorter than the width of the inner baffle plate baffle surface, and longer than the width of the screening and conveying track. When the plane or curved surface with a larger area relative to the magnetic steel fits the inner baffle plate and moves, the width of the screening and conveying track matches the width of the surface where the magnetic steel contacts the screening and conveying track.

3. A screening and feeding device containing curved magnetic steel according to claim 2, characterized in that: The sorting mechanism includes an inverted L-shaped spacer, the horizontal end of the spacer is connected to the loading baffle, and the vertical lower end is connected to the end of the spiral loading plate. The spacer, the loading baffle and the spiral loading plate form a feeding channel, and the size of the feeding channel is large enough for a magnet to pass through.

4. A screening and feeding device containing curved magnetic steel according to claim 3, characterized in that: The end of the inner baffle plate close to the sorting mechanism and the upper end of the spiral feeding plate are in the same plane, and the inclination angle of the inner baffle plate gradually increases along the conveying direction until it is perpendicular to the screening conveying track and no longer increases.

5. The screening and feeding device containing curved magnetic steel according to claim 4, characterized in that: The end of the outer baffle plate in front of the flap panel is in the same plane as the flap panel, and the inclination angle of the outer baffle plate in front of the flap panel gradually increases along the conveying direction until it is arranged vertically upward.

6. A screening and feeding device containing curved magnetic steel according to claim 5, characterized in that: The oriented judgment and rejection mechanism comprises a judgment vibrator, and the judgment vibrator is arranged on the inner side of the inner baffle plate, and the outer side of the screening sequence conveying track corresponding to the judgment vibrator is not provided with an outer baffle plate.

7. The screening and feeding device containing curved magnetic steel according to claim 1, characterized in that: The end of the inner baffle away from the sorting mechanism has an inclination angle gradually reduced along the conveying direction until it is horizontally arranged, and the magnetic steel faces downward on the flat surface and upward on the curved surface at the end of the inner baffle.

8. The screening and feeding device containing curved magnetic steel according to claim 1, characterized in that: It also includes a guide plate, wherein the inner ring frame is provided with a feeding opening at a position close to the bottom of the spiral feeding plate, the guide plate is arc-shaped, and one end is connected to the inner side surface of the outer ring frame, and the other end is connected to the side surface of the feeding opening, and the feeding opening communicates with the inside and outside of the inner ring frame; the outer ring frame is provided with a discharge opening at a position extending out of the outer ring frame corresponding to the screening conveying track, and the discharge opening is not provided at the corresponding lower part of the screening conveying track; the screening conveying track is connected to the inner ring frame through a plurality of connecting rods; The inner side surface of the spiral feeding plate is higher than the outer side surface.

9. A screening method for a screening and feeding device containing curved magnetic steel according to any one of claims 1 to 8, characterized in that: The specific steps include: S1. Vibration loading: The magnetic steels to be screened are placed on the main body of the vibration plate and located in the inner ring frame. The magnetic steels are gradually transported upward through the spiral loading plate due to the vibration of the vibration plate. The relatively large flat or curved surface of the magnetic steels is transported by contacting the spiral loading plate due to vibration. Since the inner side of the spiral loading plate is higher than the outer side, the magnetic steels are transported outside on the spiral loading plate, that is, close to the inner ring frame, until they are transported to the top of the spiral loading plate. S2. Sorting and conveying: The magnetic steels conveyed to the top of the spiral feeding plate enter the screening and conveying track through the feeding slot one by one. Since the end of the inner baffle plate close to the spiral feeding plate and the upper end of the spiral feeding plate are in the same plane, the plane or curved surface of the magnetic steel just entering the screening and conveying track is located on the screening and conveying track and the inner baffle plate. With the vibration movement, the inclination angle of the inner baffle plate gradually increases. Since the width of the baffle surface of the inner baffle plate is longer than the width of the screening and conveying track, the plane or curved surface of the magnetic steel gradually moves with the inclination of the inner baffle plate, and the side surface between the plane and curved surface of the magnetic steel contacts the screening and conveying track and moves; S3. Face judgment flip: when the magnetic steel is transported to the position of the corresponding flip vibrator on the screening conveyor track; S31. If the side surface close to the inner baffle is flat and in full contact with the inner baffle, due to the gravity of the magnet itself, the vibration of the flip vibrator is not enough to make the magnet slide out of the screening conveyor track, and the magnet is still transported forward along the inner baffle in the screening conveyor track; S32. If the side surface close to the inner baffle is a curved surface, the contact area with the inner baffle is small and the contact is unstable. Under the dual vibration of the vibration plate body and the flip vibrator, the magnet is vibrated and bounced up, and slides out of the screening conveyor track and slides onto the flip panel. The curved surface of the magnet on the flip panel faces downward and the flat surface faces upward. On the flip panel, it continues to move forward due to the vibration of the vibration plate body. S33. Because the end of the outer baffle plate in front of the flap plate is in the same plane as the flap plate, the magnetic steel gradually moves forward onto the outer baffle plate and the screening conveying track through the guidance of the guide member, and continues to move forward due to vibration. As the inclination angle of the outer baffle plate gradually increases, and because the width of the baffle surface of the outer baffle plate is longer than the width of the screening conveying track, the curved surface of the magnetic steel is gradually lifted and tilted in contact with the outer baffle plate until the outer baffle plate is in a vertical position, and the magnetic steel falls over and fits the inner baffle plate, so that the flat surface of the magnetic steel contacts the inner baffle plate and continues to be transported; S4. Facing judgment rejection: When the magnet is transported forward to the judgment vibrator on the screening conveyor track, the magnet with a flat surface in contact with the inner baffle continues to be transported forward on the screening conveyor track. If there is still a magnet with a curved surface in contact with the inner baffle, the judged vibrator will vibrate and slide out of the screening conveyor track due to the unstable curved surface contact, and fall on the top surface of the vibration plate body between the inner ring frame and the outer ring frame; S5. Outward transportation: The magnets that fall onto the top surface of the vibration disk body between the inner ring frame and the outer ring frame are transported to the loading opening due to the vibration of the vibration disk, and enter the inner ring frame to continue vibrating and loading, and steps S1-S4 are repeated; the magnets that are in flat contact with the inner baffle are transported on the screening and conveying track until the inclination angle of the inner baffle is gradually reduced to a horizontal level, and the curved surface of the magnets on the inner baffle faces upward.

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