Automatic feeding system for A-side magnetic poles of magnetrons

Abstract

The invention discloses an automatic magnetron A-side magnetic pole feeding system which comprises a vibration feeding module and a hole direction adjusting module, and the vibration feeding module is used for screening and sorting A-side magnetic pole pieces and conveying the A-side magnetic pole pieces to the hole direction adjusting module one by one; the hole direction adjusting module comprises an A-side magnetic pole piece hole direction detecting mechanism and an A-side magnetic pole piece hole direction adjusting mechanism, the A-side magnetic pole piece hole direction detecting mechanism is used for detecting the antenna hole position of the A-side magnetic pole piece, and the A-side magnetic pole piece hole direction adjusting mechanism is used for adjusting the antenna hole position of the A-side magnetic pole piece. The vibration feeding module is used for screening and sorting the A-side magnetic pole pieces, the A-side magnetic pole pieces are conveyed to the hole direction adjusting module one by one, antenna hole position detection and antenna hole position adjustment are conducted on the A-side magnetic pole pieces through the hole direction adjusting module, and finally automatic sorting feeding is conducted in the unified direction. The accuracy of the grabbing and assembling actions executed by the grabbing and assembling mechanism is ensured, and the assembling efficiency and the assembling quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetron production equipment, in particular to an automatic feeding system for magnetron A-side magnetic poles. Background Art

[0002] The magnetron is the core component of a microwave oven. It is composed of many components and parts, such as the anode assembly, cathode assembly and antenna assembly, and is produced through many processes of processing, assembly and welding. In modern industrial production, in order to improve production efficiency and quality, automated assembly lines are used as much as possible for processing. In the process of magnetron production and assembly, there is a step of assembling the A-side magnetic pole piece with the anode cylinder assembly. In order to realize the automation of this assembly step, automatic loading of the A-side magnetic pole piece is necessary. The A-side magnetic pole piece refers to the magnetic pole piece assembled to the antenna end of the magnetron, and an antenna hole is opened on it so that the antenna can be passed through for assembly during the assembly process. In order to facilitate the automatic assembly of the A-side magnetic pole piece, the A-side magnetic pole piece needs to be adjusted to a uniform direction to facilitate the grasping assembly mechanism to perform the grasping assembly action. The A-side magnetic pole piece is a small component in the shape of a straw hat. It is difficult to fully realize the direction positioning and adjustment of the antenna hole of the A-side magnetic pole piece by relying solely on the screening and adjustment structure of the material tray. Therefore, it is necessary to design a corresponding A-side magnetic pole piece automatic feeding system to meet the feeding and assembly requirements of the A-side magnetic pole piece in the automatic assembly production of magnetrons. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides an automatic feeding system for the magnetic poles on the A side of a magnetron. The technical solution of the present invention is as follows:

[0004] A magnetron A-side magnetic pole automatic feeding system includes a vibration feeding module and a hole direction adjustment module. The vibration feeding module is used to screen and sort the A-side magnetic pole pieces, so that the A-side magnetic pole pieces are transported one by one to the hole direction adjustment module; the hole direction adjustment module includes an A-side magnetic pole piece hole direction detection mechanism and an A-side magnetic pole piece hole direction adjustment mechanism. The A-side magnetic pole piece hole direction detection mechanism is used to detect the antenna hole position of the A-side magnetic pole piece, and the A-side magnetic pole piece hole direction adjustment mechanism is used to adjust the antenna hole position of the A-side magnetic pole piece.

[0005] As a further illustration of the present invention, the A-side magnetic pole piece hole detection mechanism includes an infrared detection sensor and / or a visual sensor.

[0006] Furthermore, the A-side magnetic pole piece hole adjustment mechanism includes a rotation adjustment mechanism for supporting or grabbing the A-side magnetic pole piece.

[0007] Furthermore, it includes a detection and adjustment workbench and a material transfer robot, wherein a detection and adjustment mold with a rotating inner mold is provided on the detection and adjustment workbench, and the material transfer robot is used to transfer the A-side magnetic pole piece from the vibration feeding module to the detection and adjustment mold.

[0008] Furthermore, the infrared detection sensor is arranged inside or outside the detection and adjustment mold, and the detection signal of the infrared sensor on the A-side magnetic pole piece antenna hole is used to control the drive of the rotating inner mold.

[0009] Furthermore, the visual sensor above the detection and adjustment mold, the detection signal of the visual sensor on the A-side magnetic pole piece antenna hole is used to control the drive of the rotating inner mold.

[0010] Furthermore, the vibration feeding module includes a vibration tray, a spiral feeding channel and a screening and sorting channel. The spiral feeding channel spirally rises from the bottom of the vibration tray along the side wall of the vibration tray to the upper part of the vibration tray. The screening and sorting channel is connected to the spiral feeding channel for screening, sorting and conveying the A-side magnetic pole pieces; the screening and sorting channel includes an inclined screening channel, a flip feeding channel and a sorting feeding channel;

[0011] The inclined screening channel is connected to the end of the spiral feeding channel and includes a narrow side channel and a screening inclined surface. The screening inclined surface is located on one side of the narrow side channel.

[0012] The overturning feeding channel is connected to the end of the inclined screening channel, and includes a wide side channel located on the side of the narrow side channel relatively away from the screening material inclined surface;

[0013] The sorting feed channel is connected to the end of the flipping feed channel and is used to transport the screened and sorted A-side magnetic pole pieces.

[0014] Furthermore, the width of the narrow side channel is greater than one times the thickness of the A-side magnetic pole piece and less than two times the thickness of the A-side magnetic pole piece, and the slope of the screening material slope gradually increases from the head end to the end of the slope screening channel.

[0015] Furthermore, a first auxiliary screening rod is provided on the inclined screening channel. The first auxiliary screening rod is provided on the outer side of the narrow side channel and extends obliquely in a direction relatively away from the screening material inclined surface.

[0016] Furthermore, a second auxiliary screening rod is provided on the inclined screening channel. The second auxiliary screening rod is arranged on the outside of the narrow side channel and extends obliquely in a direction relatively close to the screening material inclined surface, and forms a screening gap between the second auxiliary screening rod and the screening material inclined surface.

[0017] Beneficial effects of the present invention:

[0018] The present invention screens and sorts the A-side magnetic pole pieces through a vibration feeding module, so that the A-side magnetic pole pieces are transported one by one to the hole direction adjustment module, and the hole direction adjustment module detects and adjusts the antenna hole position of the A-side magnetic pole pieces, so that they are finally fed in a unified direction, realizing automatic sorting and feeding of the A-side magnetic pole pieces, ensuring the accuracy of the grasping and assembly action performed by the grasping and assembly mechanism, and improving assembly efficiency and assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a hole direction adjustment module according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of adjusting the initial state of an antenna hole of the magnetic pole piece on side A of an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of another adjustment of the initial state of the antenna hole of the magnetic pole piece on side A of an embodiment of the present invention;

[0022] Figure 4 This is a diagram showing the overall structure of a vibration feeding module according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of material screening using the first auxiliary screening rod and the second auxiliary screening rod according to an embodiment of the present invention.

[0024] Figure markings: A-side magnetic pole piece 1, antenna hole 101, infrared detection sensor 2, detection and adjustment workbench 3, material transfer robot 4, detection and adjustment mold 5, rotating inner mold 501, vibrating material tray 6, spiral feeding channel 7, inclined screening channel 8, narrow edge channel 801, screening slope 802, flip feeding channel 9, sorting feeding channel 10, first auxiliary screening rod 11, second auxiliary screening rod 12. DETAILED DESCRIPTION

[0025] Example:

[0026] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0028] A magnetron A-side magnetic pole automatic feeding system includes a vibration feeding module and a hole direction adjustment module. The vibration feeding module is used to screen and sort the A-side magnetic pole pieces 1, so that the A-side magnetic pole pieces 1 are transported one by one to the hole direction adjustment module; the hole direction adjustment module includes an A-side magnetic pole piece hole direction detection mechanism and an A-side magnetic pole piece hole direction adjustment mechanism. The A-side magnetic pole piece hole direction detection mechanism is used to detect the position of the antenna hole 101 of the A-side magnetic pole piece 1, and the A-side magnetic pole piece hole direction adjustment mechanism is used to adjust the position of the antenna hole 101 of the A-side magnetic pole piece 1. The automatic feeding system for the magnetron A-side magnetic poles of this embodiment first screens and sorts the A-side magnetic pole pieces 1 through the vibration feeding module, so that the A-side magnetic pole pieces 1 are transported one by one to the hole adjustment module, and then the hole adjustment module is used to detect the position of the antenna hole 101 of the A-side magnetic pole piece 1 and adjust the position of the antenna hole 101, so that the A-side magnetic pole piece 1 is finally adjusted to the set posture, so as to realize the mechanical automation assembly operation relative to the magnetron anode tube antenna component, ensure the accuracy of the grasping assembly action performed by the grasping assembly mechanism, improve the production assembly efficiency, and reduce the production cost.

[0029] In the present invention, based on the structural characteristics of the A-side magnetic pole piece 1, it is difficult to adjust the direction of the antenna hole 101 of the A-side magnetic pole piece 1 only by the screening structure related to the vibration feeding module, and it needs to be achieved through active adjustment. To this end, it is necessary to set up a side A magnetic pole piece hole detection mechanism to detect the position of the antenna hole 101 of the A-side magnetic pole piece 1 in the initial state, so as to obtain the amplitude of the adjustment required for the A-side magnetic pole piece 1. It is feasible that the side A magnetic pole piece hole detection mechanism can use an infrared detection sensor 2 to detect and identify the position of the antenna hole 101 by signal detection, or use a visual sensor to detect and identify the position of the antenna hole 101 by image acquisition combined with image analysis technology.

[0030] In the present invention, based on the structural characteristics of the A-side magnetic pole piece 1, the direction of the antenna hole 101 of the A-side magnetic pole piece 1 can be adjusted by rotational adjustment. After detection and identification by the above-mentioned A-side magnetic pole piece hole detection mechanism, the required rotational adjustment angle of the A-side magnetic pole piece 1 can be obtained, and then specific adjustments can be made through rotational adjustment mechanisms such as a rotatable supporting mold or a grasping robot, so that the A-side magnetic pole piece 1 meets the loading requirements of the automatic assembly operation.

[0031] For details, see the attached Figure 1As shown, the automatic feeding system for magnetron A-side magnetic poles of the embodiment includes an inspection and adjustment workbench 3 and a material transfer robot 4. The inspection and adjustment workbench 3 is provided with an inspection and adjustment mold 5 having a rotating inner mold 501. The material transfer robot 4 is used to transfer the A-side magnetic pole pieces 1 from the vibrating feeding module to the inspection and adjustment mold 5. Specifically, a dedicated inspection and adjustment station is provided for the A-side magnetic pole pieces 1. After the A-side magnetic pole pieces 1 are screened and sorted by the vibrating feeding module, the orientation and position of their antenna holes 101 are uncertain. Therefore, the A-side magnetic pole pieces 1 are transferred to the inspection and adjustment mold 5 for specific inspection and adjustment of the orientation and position of the antenna holes 101.

[0032] Specifically, as mentioned above, the infrared detection sensor 2 can be used as the detection device for detecting the direction and position of the antenna hole of the magnetic pole piece on the A side. It is set in the detection and adjustment mold 5. Through the difference of its detection signal, it can be judged whether the antenna hole 101 of the magnetic pole piece 1 on the A side is aligned with the detection direction of the infrared detection sensor 2, and then the rotation adjustment of the magnetic pole piece 1 on the A side can be controlled. Figure 2 In the case shown, when the antenna hole 101 of the A-side magnetic pole piece 1 placed in the detection and adjustment mold 5 is not aligned with the infrared detection sensor 2, the detection and adjustment mold 5 is controlled to rotate the inner mold 501 to drive the A-side magnetic pole piece 1 thereon to rotate. After rotating by an angle α so that the antenna hole 101 of the A-side magnetic pole piece 1 is turned to the detection direction aligned with the infrared detection sensor 2, the rotation is controlled to stop, and the adjustment is completed. In this embodiment, as shown in the attached Figure 3 In another case shown, when the A-side magnetic pole piece 1 is placed on the detection and adjustment mold 5, its antenna hole 101 is roughly aligned with the detection direction of the infrared detection sensor 2. In order to avoid deviation, the A-side magnetic pole piece 1 can be rotated and adjusted in this case through program setting. After rotating the β angle so that the antenna hole 101 of the A-side magnetic pole piece 1 is aligned with the detection direction of the infrared detection sensor 2, the rotation is controlled to stop, and the adjustment is completed to ensure the accuracy of the rotation adjustment action. It is easy to understand that in the present invention, the infrared detection sensor 2 is not limited to being set inside the detection and adjustment mold 5. It can also be set outside the detection and adjustment mold 5. Its detection and adjustment principles and actions for the A-side magnetic pole piece 1 are basically the same, and will not be repeated here.

[0033] Similarly, as mentioned above, the above-mentioned detection can also be achieved through a visual sensor. The visual sensor is arranged above the detection and adjustment mold 5 and is used to take a picture of the A-side magnetic pole piece 1 placed on the detection and adjustment mold 5. Combined with conventional image recognition technology, the angle at which the A-side magnetic pole piece 1 needs to be rotated and adjusted can also be obtained, thereby controlling the rotation of the rotating inner mold 501 to complete the rotation adjustment of the A-side magnetic pole piece 1.

[0034] As attached Figure 4As shown, the vibration feeding module of this embodiment specifically includes a vibration material tray 6, a spiral feeding channel 7 and a screening and sorting channel, the spiral feeding channel 7 spirally rises from the bottom of the vibration material tray 6 along the side wall of the vibration material tray 6 to the upper part of the vibration material tray 6, and the screening and sorting channel is connected to the spiral feeding channel 7 for screening, sorting and conveying the A-side magnetic pole pieces 1; the screening and sorting channel includes an inclined screening channel 8, an overturning feeding channel 9 and a sorting feeding channel 10; the inclined screening channel 8 is connected to the end of the spiral feeding channel 7, including a narrow side channel 801 and a screening inclined surface 802, and the screening inclined surface 802 is located on one side of the narrow side channel 801; the overturning feeding channel 9 is connected to the end of the inclined screening channel 8, including a wide side channel located on the side of the narrow side channel 801 relatively away from the screening inclined surface 802; the sorting feeding channel 10 is connected to the end of the overturning feeding channel 9, for conveying the screened and sorted A-side magnetic pole pieces 1. The working principle of the vibration feeding module of this embodiment is the same as the basic vibration feeding principle, that is, the material (A-side magnetic pole piece 1) is pushed along the material channel through the vibration action of the vibration material tray 6, and a corresponding screening and blanking structure is designed according to the structural characteristics of the A-side magnetic pole piece 1. During the movement of the material, the A-side magnetic pole piece 1 that does not meet the sorting status is screened out by the corresponding screening structure set on the screening and sorting channel, and the screening and sorting of the A-side magnetic pole piece 1 is completed quickly, accurately and automatically.

[0035] In the present invention, the narrow-side material channel 801 refers to a relatively narrow material channel structure designed to suit the thickness parameters of the A-side magnetic pole piece 1, and this narrow material channel structure is used to screen out certain materials that do not conform to the sorting state during the vibration process of the A-side magnetic pole piece 1. Specifically, as shown in the accompanying drawings, the width of the narrow-side material channel 801 is greater than one times the thickness of the A-side magnetic pole piece 1 and less than two times the thickness of the A-side magnetic pole piece 1. The function of the inclined screening material channel 8 is mainly to screen and remove duplicates, and to achieve a single-state movement of materials. For the convenience of description, the screening material inclined surface 802 of the narrow-side material channel 801 in the embodiment is defined as the inner side, and the other side is defined as the outer side; for the A-side magnetic pole piece 1, the side with the larger diameter is defined as the annular surface, and the side with the smaller diameter is defined as the convex surface. As described above, when the A-side magnetic pole piece 1 rises along the spiral feeding channel 7 to the inclined screening channel 8, it slides in with an uncertain posture, including sliding in with the annular surface of the A-side magnetic pole piece 1 attached to the screening material inclined surface 802, sliding in with the convex surface of the A-side magnetic pole piece 1 attached to the screening material inclined surface 802, or sliding in with other postures in between. The purpose of designing the inclined screening channel 8 in this embodiment is to screen out the A-side magnetic pole pieces 1 that slide in with the posture of annular surface attached to the screening material inclined surface 802. Based on the width size of the narrow-edge channel 801 and the slope setting of the screening material inclined surface 802 in this embodiment, combined with the straw hat shape characteristics of the A-side magnetic pole pieces 1, the A-side magnetic pole pieces 1 that slide in with the posture of annular surface attached to the screening material inclined surface 802 can continue to move forward along the inclined screening channel 8 better, while the A-side magnetic pole pieces 1 in other postures fall back into the vibrating material tray 6 and are reloaded due to the lack of support from the narrow-edge channel 801 at the bottom, thereby realizing the screening and feeding of the A-side magnetic pole pieces 1 with the set posture.

[0036] In a preferred embodiment, the slope of the screening material slope 802 gradually increases from the head end to the end of the inclined screening material channel 8. At the initial end of the inclined screening material channel 8, the relatively small slope setting of the screening material slope 802 can make the A-side magnetic pole piece 1 slide into the inclined screening material channel 8 more smoothly, avoiding the problem of excessive movement causing the A-side magnetic pole piece 1 to be easily adjusted out and fall back, so as to ensure that the A-side magnetic pole piece 1 effectively enters the inclined screening material channel 8 for posture screening, thereby ensuring feeding efficiency. At the middle and rear end of the inclined screening material channel 8, the slope of the screening material slope 802 gradually increases until the rear end of the screening material slope 802 is roughly perpendicular to the horizontal plane. The purpose of this slope setting is to gradually lift up the A-side magnetic pole piece 1 during its movement, so that the A-side magnetic pole piece 1 that does not meet the posture requirements loses support and falls off for screening, thereby achieving posture screening of the A-side magnetic pole piece 1.

[0037] For details, please refer to the attached Figure 5As shown, in this embodiment, a first auxiliary screening rod 11 is provided on the inclined screening channel 8. The first auxiliary screening rod 11 is provided on the outside of the narrow side channel 801 and extends obliquely in a direction relatively away from the screening material inclined surface 802. In actual application, as described above, the A-side magnetic pole piece 1 may enter the inclined screening channel 8 in different postures. Based on the structural design of the inclined screening channel 8 and the structural characteristics of the A-side magnetic pole piece 1 itself, the A-side magnetic pole piece 1 may also enter the inclined screening channel 8 in an additional posture. Figure 5 As shown, the pole piece 1 on the side of the narrow material channel 801 is hooked through the antenna hole 101 and continues to move forward. In order to screen out the pole piece 1 on the side of the narrow material channel 801 in this posture, the first auxiliary screening rod 11 is provided on the outside of the initial end of the narrow material channel 801 in this embodiment, and the distance between the pole piece 1 on the side of the narrow material channel 801 is gradually increased. In this way, when the pole piece 1 on the side of the A enters the inclined screening material channel 8 in the above posture and gradually moves forward, the pole piece 1 on the side of the A is gradually lifted up by the action of the first auxiliary screening rod 11. In the initial stage, since the distance between the first auxiliary screening rod 11 and the narrow side material channel 801 is small, the lower part of the A-side magnetic pole piece 1 can continue to move forward under the joint support of the first auxiliary screening rod 11 and the narrow side material channel 801. However, as the distance between the first auxiliary screening rod 11 and the narrow side material channel 801 gradually increases and eventually exceeds the critical size value, the lower part of the A-side magnetic pole piece 1 loses the support of the first auxiliary screening rod 11. Since the posture of the A-side magnetic pole piece 1 has changed at this time, the single narrow side material channel 801 cannot form a stable support, and the A-side magnetic pole piece 1 will eventually fall back, thereby achieving the screening of the A-side magnetic pole piece 1 in the above-mentioned posture.

[0038] In addition to the above situation, the A-side magnetic pole piece 1 may also enter the inclined screening material channel 8 in a manner of overlapping multiple materials. In order to screen out the excess A-side magnetic pole piece 1 in this case, a second auxiliary screening rod 12 is provided on the inclined screening material channel 8 in this embodiment. The second auxiliary screening rod 12 is provided on the outer side of the narrow side material channel 801 and extends obliquely in a direction relatively close to the screening material inclined surface 802, and forms a screening gap between the second auxiliary screening rod 12 and the screening material inclined surface 802. The width of the screening gap is preferably greater than one times the thickness of the A-side magnetic pole piece 1 and less than two times the thickness of the A-side magnetic pole piece 1. In this way, when multiple (for example, two) A-side magnetic pole pieces 1 overlap and move forward along the inclined screening material channel 8, at the front end of the second auxiliary screening rod 12, since the screening gap between the second auxiliary screening rod 12 and the screening material inclined surface 802 is small, the front end of the second auxiliary screening rod 12 will be inserted into the gap between the innermost A-side magnetic pole piece 1 and its outer A-side magnetic pole piece 1, and then the excess overlapping A-side magnetic pole piece 1 will fall back under the action of the second auxiliary screening rod 12 when continuing to move forward, thereby realizing the screening of overlapping materials and ensuring the correct posture of the conveying of single materials.

[0039] The above description is merely an explanation of the preferred embodiments of the present invention and should not be construed as limiting the claims. The present invention is not limited to the above embodiments, and variations in the specific structure are permitted. In short, all variations made within the scope of the independent claims of the present invention are also within the scope of protection of the present invention.

Claims

1. An automatic feeding system for the magnetic pole on the A side of a magnetron, characterized by: It includes a vibration feeding module and a hole direction adjustment module, the vibration feeding module is used to screen and sort the A-side magnetic pole pieces, so that the A-side magnetic pole pieces are transported to the hole direction adjustment module one by one; the hole direction adjustment module includes an A-side magnetic pole piece hole direction detection mechanism and an A-side magnetic pole piece hole direction adjustment mechanism, the A-side magnetic pole piece hole direction detection mechanism is used to detect the antenna hole position of the A-side magnetic pole piece, and the A-side magnetic pole piece hole direction adjustment mechanism is used to adjust the antenna hole position of the A-side magnetic pole piece.

2. The automatic feeding system for the magnetron A-side magnetic pole according to claim 1, characterized in that: The A-side magnetic pole piece hole detection mechanism includes an infrared detection sensor and / or a visual sensor.

3. The automatic feeding system for the magnetron A-side magnetic pole according to claim 2, characterized in that: The A-side magnetic pole piece hole adjustment mechanism includes a rotation adjustment mechanism that supports or grasps the A-side magnetic pole piece.

4. The automatic feeding system for the magnetron A-side magnetic pole according to claim 2 or 3, characterized in that: It includes a detection and adjustment workbench and a material transfer manipulator. The detection and adjustment workbench is provided with a detection and adjustment mold with a rotating inner mold. The material transfer manipulator is used to transfer the A-side magnetic pole piece from the vibration feeding module to the detection and adjustment mold.

5. The automatic feeding system for the magnetron A-side magnetic pole according to claim 4, characterized in that: The infrared detection sensor is arranged inside or outside the detection and adjustment mold, and the detection signal of the infrared sensor on the A-side magnetic pole piece antenna hole is used to control the driving of the rotating inner mold.

6. The automatic feeding system for the magnetron A-side magnetic pole according to claim 4, characterized in that: The visual sensor above the detection and adjustment mold uses a detection signal from the visual sensor on the A-side magnetic pole piece antenna hole to control the drive of the rotating inner mold.

7. The automatic feeding system for the magnetron A-side magnetic pole according to claim 1, characterized in that: The vibrating feeding module includes a vibrating tray, a spiral feeding channel and a screening and sorting channel. The spiral feeding channel spirally rises from the bottom of the vibrating tray along the side wall of the vibrating tray to the upper part of the vibrating tray. The screening and sorting channel is connected to the spiral feeding channel for screening, sorting and conveying the magnetic pole pieces on the A side. The screening and sorting channel includes an inclined screening channel, a flip feeding channel and a sorting feeding channel. The inclined screening channel is connected to the end of the spiral feeding channel and includes a narrow side channel and a screening inclined surface. The screening inclined surface is located on one side of the narrow side channel. The overturning feeding channel is connected to the end of the inclined screening channel, and includes a wide side channel located on the side of the narrow side channel relatively away from the screening material inclined surface; The sorting feed channel is connected to the end of the flipping feed channel and is used to transport the screened and sorted A-side magnetic pole pieces.

8. The automatic feeding system for the magnetron A-side magnetic pole according to claim 7, characterized in that: The width of the narrow side material channel is greater than one times the thickness of the A-side magnetic pole piece and less than two times the thickness of the A-side magnetic pole piece. The slope of the screening material slope gradually increases from the head end to the end of the slope screening material channel.

9. The automatic feeding system for the magnetron A-side magnetic pole according to claim 7, characterized in that: A first auxiliary screening rod is provided on the inclined screening channel. The first auxiliary screening rod is provided on the outer side of the narrow side channel and extends obliquely in a direction relatively away from the screening material inclined surface.

10. The automatic feeding system for the magnetron A-side magnetic pole according to claim 7, characterized in that: A second auxiliary screening rod is provided on the inclined screening channel. The second auxiliary screening rod is provided on the outer side of the narrow side channel and extends obliquely in a direction relatively close to the screening material inclined surface, and forms a screening gap between the second auxiliary screening rod and the screening material inclined surface.

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