Automatic feeding device for winding of annular inductor

Abstract

The invention discloses an automatic feeding device for annular inductor winding, and relates to the technical field of annular magnetic core conveying, the automatic feeding device comprises a conveying belt, a positioning and stacking mechanism is arranged at the output end of the conveying belt, an automatic feeding mechanism is arranged above the positioning and stacking mechanism, and the positioning and stacking mechanism comprises a positioning platform, a lifting circular truncated cone and a hollow stacking box; a positioning round hole is formed in the positioning platform in a penetrating mode, the lifting round table is arranged in the positioning round hole and has the freedom degree of moving in the height direction of the positioning platform, the hollow stacking box is arranged over the lifting round table, two supporting blocks are symmetrically arranged in the hollow stacking box in the horizontal direction, and the supporting blocks are arranged in the hollow stacking box in a sliding and penetrating mode. The supporting block has the freedom degree of moving in the horizontal direction, the annular inductor is supported through the supporting block, the diameter of the lifting circular truncated cone is smaller than the outer diameter of the annular inductor, the diameter of the lifting circular truncated cone is larger than the inner diameter of the annular inductor, and therefore annular magnetic cores can be fed without shutdown, and the feeding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of annular magnetic core conveying, in particular to an automatic feeding device for annular inductor winding. Background Art

[0002] A toroidal coil inductor (inductor coil) is an electromagnetic induction element wound with an insulated wire. It is also one of the commonly used components in electronic circuits. It is a component that can convert electrical energy into magnetic energy and store it. The structure of the inductor is similar to that of a transformer, but it has only one winding. The inductor has a certain inductance, which only hinders the change of current. When producing toroidal inductors, winding is required. During the winding, the toroidal magnetic core needs to be loaded onto the winding device first. At present, the toroidal magnetic cores are stacked in a box, and the magnetic cores in the box are clamped and loaded onto the winding device in turn through a clamping mechanism. Since the number of toroidal magnetic cores stored in the box is limited, after the toroidal magnetic cores in the box are loaded, the machine needs to be stopped and the toroidal magnetic cores need to be stacked in the box again. This stacking process is performed manually, which is costly and inefficient. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an automatic feeding device for toroidal inductor winding to solve the deficiencies of the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions: an automatic feeding device for toroidal inductor winding, comprising a conveyor belt, a positioning and coding mechanism is arranged at the output end of the conveyor belt, an automatic feeding mechanism is arranged above the positioning and coding mechanism, the positioning and coding mechanism comprises a positioning platform, a lifting round table and a hollow stacking box, a positioning circular hole is penetrated through the positioning platform, the lifting round table is arranged in the positioning circular hole, the lifting round table has the freedom to move along the height direction of the positioning platform, the hollow stacking box is arranged just above the lifting round table, the toroidal inductor is stacked in the hollow stacking box along the vertical direction, two support blocks are symmetrically arranged in the hollow stacking box along the horizontal direction, the support blocks are slidably arranged in the hollow stacking box, the support blocks have the freedom to move in the horizontal direction, and are used to adjust the spacing between the two support blocks, the toroidal inductor is supported by the support blocks, the diameter of the lifting round table is smaller than the outer diameter of the toroidal inductor, and the diameter of the lifting round table is larger than the inner diameter of the toroidal inductor;

[0005] The automatic feeding mechanism includes a lifting beam, a sliding beam and a clamping bar. The lifting beam has the freedom to move along the height direction of the hollow stacking box. The sliding beam is slidably arranged on the lifting beam. The sliding beam moves close to or away from the hollow stacking box. Two clamping bars are arranged at one end of the sliding beam away from the lifting beam. The clamping bar is in a 7-shape. The moving direction of the clamping bar on the horizontal plane is perpendicular to the moving direction of the sliding beam.

[0006] Furthermore, the hollow stacking box is provided with a horizontal slide groove at the position where the support block is set, and the support block is slidably adapted to the horizontal slide groove. Springs are provided on both sides of the support block, one end of the spring is connected to the support block, and the other end is connected to the outer wall of the hollow stacking box. When the spring is in normal state, one end of the support block penetrates into the hollow stacking box.

[0007] Furthermore, a driving slot is provided through the support block, and the driving slot is located on the outside of the hollow stacking box. Two groups of lifting mechanisms are symmetrically arranged on the side wall of the lifting table, and the two groups of lifting mechanisms correspond to the two support blocks respectively. The lifting mechanism includes a horizontal rod, a lifting rod and a wedge block. One end of the horizontal rod is connected to the lifting table, and the other end is connected to the bottom of the lifting rod. The horizontal rod is located below the positioning platform, and the lifting rod is located on the outside of the positioning platform. The wedge block is located in the driving slot and connected to the support block. A wedge surface is provided at the bottom of the wedge block, and the wedge surface is located on the moving path of the lifting rod, which is used to squeeze the support block to move away from the center of the hollow stacking box.

[0008] Furthermore, an escape space is formed between one side of the wedge block and the side wall of the driving slot, a rotating shaft is coaxially fixed to the bottom of the lifting table, the rotating shaft is rotatably mounted on the lifting base, and is used to drive the lifting rod to rotate into the escape space, a fixed base is provided below the lifting base, a first cylinder is vertically mounted on the top of the fixed base, the telescopic shaft of the first cylinder is connected to the lifting base, a second cylinder is horizontally mounted on the lifting base, the telescopic shaft of the second cylinder is connected to a rack, a gear is mounted on the rotating shaft, and the gear meshes with the rack.

[0009] Furthermore, two transverse limit bars are arranged at intervals on the positioning platform, the lifting platform is located between the transverse limit bars, the two transverse limit bars are arranged at intervals along the conveying direction perpendicular to the conveyor belt, and a longitudinal limit bar is provided on the positioning platform, the lifting platform is located between the longitudinal limit bar and the conveyor belt, when the transverse limit bar and the longitudinal limit bar both contact the annular magnetic core, the annular magnetic core is located on the lifting platform, and two limit rods are provided above the conveying surface of the conveyor belt, a conveying channel for the annular magnetic core is formed between the two limit rods, and the limit rods are connected to the conveying frame of the conveyor belt.

[0010] Furthermore, an end of the limit rod away from the positioning platform is connected to an inclined guide rod, and the spacing between the two inclined guide rods gradually decreases in the direction approaching the limit rod. An exciter is installed on the conveying frame of the conveyor belt.

[0011] Furthermore, a small diameter hole and a large diameter hole are sequentially opened on the top of the lifting table from top to bottom, a limit plate is slidably adapted in the large diameter hole, a positioning cone is slidably arranged in the small diameter hole, the diameter of the positioning cone gradually decreases in the direction approaching the hollow stacking box, the large diameter end of the positioning cone is connected to the limit plate, a permanent magnet is arranged at the bottom of the limit plate, an electromagnet is installed below the permanent magnet, a positioning spring is arranged between the electromagnet and the permanent magnet, two ends of the positioning spring are respectively connected to the limit plate and the lifting table, the electromagnet is energized to generate magnetic poles with the same magnetic properties as the permanent magnet, and when the positioning spring is in normal state, the positioning cone is completely located in the small diameter hole.

[0012] Furthermore, the automatic feeding mechanism also includes a mounting base, a rotating base, a third cylinder and a fourth cylinder, a main shaft is fixed to the bottom of the rotating base, the main shaft is rotatably mounted on the top of the mounting base, a driving motor is arranged in the mounting base, the output shaft of the driving motor is transmission-connected to the main shaft, the third cylinder is vertically mounted on the top of the rotating base, the telescopic shaft of the third cylinder is connected to the lifting beam, the fourth cylinder is horizontally mounted on the lifting beam, and the telescopic shaft of the fourth cylinder is connected to the sliding beam.

[0013] Furthermore, a rectangular slot is provided at one end of the sliding beam away from the lifting beam, a bidirectional threaded screw is rotatably arranged in the rectangular slot, two threaded segments of the bidirectional threaded screw with opposite thread rotation directions are threadedly fitted with screw sliders, the screw slider is slidably adapted to the rectangular slot, the horizontal sections of the two clamping bars are respectively connected to the two screw sliders, one end of the bidirectional threaded screw passes through the sliding beam and is connected to a driven pulley, a motor is installed on the sliding beam, the output shaft of the motor is connected to a driving pulley, and the driving pulley is connected to the driven pulley through a belt drive.

[0014] Furthermore, a detection plate is provided above the hollow stacking box, and a photoelectric sensor is installed at the bottom of the detection plate. The photoelectric sensor is used to detect the stacking height of the annular magnetic cores in the hollow stacking box. The side wall of the hollow stacking box is provided with an avoidance groove, and the avoidance groove allows the horizontal section of the clamping bar to pass into the hollow stacking box.

[0015] The beneficial effects of the present invention are:

[0016] 1. The annular magnetic core is stacked in the hollow stacking box along the vertical direction and supported by the support block. The conveyor belt transports the annular magnetic core to the positioning platform so that the annular magnetic core is located on the lifting round table. The annular magnetic core is lifted by the lifting round table and moved into the hollow stacking box. The annular magnetic core can be smoothly moved to the top of the support block by the movement of the support block. Finally, the support block resets and supports the annular magnetic core, thereby automatically stacking the annular magnetic core in the hollow stacking box. The annular magnetic core can be continuously stacked in the hollow stacking box, so that the annular magnetic core can be loaded without stopping the machine, and the stacking operation is highly automated, which improves the loading efficiency.

[0017] 2. When the lifting table lifts the annular magnetic core into the hollow stacking box, the lifting rod first contacts the wedge surface of the wedge block, and the lifting rod squeezes the wedge surface to move the support block away from the center of the hollow stacking box, so that the support block moves into the horizontal slide, so that the annular magnetic core on the lifting table can pass through the support block smoothly, avoiding the problem of the annular magnetic core being squeezed and damaged by the support block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the automatic feeding device for the winding of a toroidal inductor according to the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of the automatic feeding device for the winding of a toroidal inductor according to the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 It is a schematic diagram of the internal structure of a lifting table in an automatic feeding device for toroidal inductor winding of the present invention;

[0022] Figure 5 The structure of the automatic feeding device for the winding of a toroidal inductor according to the present invention is shown in FIG. Figure 3 ;

[0023] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 The structure of the automatic feeding device for the winding of a toroidal inductor according to the present invention is shown in FIG. Figure 4 ;

[0025] In the figure, 1-conveyor belt, 2-positioning platform, 3-lifting round table, 4-hollow stacking box, 5-positioning round hole, 6-support block, 7-lifting beam, 8-sliding beam, 9-clamping strip, 10-horizontal slide, 11-spring, 12-driving notch, 13-horizontal rod, 14-lifting rod, 15-wedge block, 16-wedge surface, 17-rotating shaft, 18-lifting base, 19-fixed base, 20-first cylinder, 21-second cylinder, 22-rack, 23-gear, 24-lateral limit strip, 25-longitudinal limit strip, 26-limit rod, 27-inclined guide rod, 28-large diameter hole, 29-limit plate, 30-positioning cone, 31-permanent magnet, 32-electromagnet, 33-positioning spring, 34-mounting base, 35-third cylinder, 36-fourth cylinder, 37-rectangular notch, 38-bidirectional threaded screw, 39-screw slider, 40-driven pulley, 41-motor, 42-driving pulley, 43-belt, 44-rotating base, 45-spindle, 46-detection plate, 47-photoelectric sensor, 48-avoidance groove, 49-small diameter hole. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0027] Embodiment 1

[0028] like Figures 1 to 7As shown, an automatic feeding device for winding a toroidal inductor comprises a conveyor belt 1, a positioning and coding mechanism is arranged at the output end of the conveyor belt 1, an automatic feeding mechanism is arranged above the positioning and coding mechanism, the positioning and coding mechanism comprises a positioning platform 2, a lifting round table 3 and a hollow stacking box 4, a positioning circular hole 5 is penetrated through the positioning platform 2, the lifting round table 3 is arranged in the positioning circular hole 5, the lifting round table 3 has the freedom to move along the height direction of the positioning platform 2, the hollow stacking box 4 is arranged just above the lifting round table 3, and the toroidal inductor is stacked in the vertical direction. The ring inductor is placed in a hollow stacking box 4, and two support blocks 6 are symmetrically arranged in the horizontal direction in the hollow stacking box 4. The support blocks 6 are slidably arranged in the hollow stacking box 4, and the support blocks 6 have the freedom to move in the horizontal direction, which is used to adjust the distance between the two support blocks 6. The toroidal inductor is supported by the support blocks 6. The diameter of the lifting table 3 is smaller than the outer diameter of the toroidal inductor, and the diameter of the lifting table 3 is larger than the inner diameter of the toroidal inductor. The toroidal magnetic core is transported to the positioning platform 2 by the conveyor belt 1, so that the toroidal magnetic core falls on the lifting table 3, and then the lifting table 3 is brought The movable annular magnetic core moves upward and close to the hollow stacking box 4. When the annular magnetic core enters the hollow stacking box 4, the support block 6 moves away from the center of the hollow stacking box 4, so that the annular magnetic on the support block 6 falls on the annular magnetic core on the lifting table 3, thereby placing the new annular magnetic core at the bottom. The lifting table 3 continues to drive the annular magnetic core on it to move upward, so that the lowest annular magnetic core is located above the support block 6, and then the support block 6 moves close to the center of the hollow stacking box 4 to reset. Since the diameter of the lifting table 3 is smaller than the outer diameter of the annular inductor , and the diameter of the lifting table 3 is larger than the inner diameter of the annular inductor, so that the support block 6 moves to the hollow stacking box 4 to contact the side wall of the lifting table 3, and then the lifting table 3 moves downward to reset. At this time, the annular magnetic core will not be able to pass through the support block 6, and thus remain on the support block 6, so that the annular magnetic core is smoothly separated from the lifting table 3, and the annular magnetic core is supported by the support block 6, and the annular magnetic core can be continuously stacked in the hollow stacking box 4, so that the annular magnetic core can be loaded without stopping, and the stacking operation has a high degree of automation, which improves the loading efficiency.

[0029] Embodiment 2

[0030] Based on the first embodiment, Figures 1 to 7As shown, the automatic feeding mechanism includes a lifting beam 7, a sliding beam 8 and a clamping bar 9. The lifting beam 7 has the freedom to move along the height direction of the hollow stacking box 4. The sliding beam 8 is slidably arranged on the lifting beam 7. The sliding beam 8 moves close to or away from the hollow stacking box 4. Two clamping bars 9 are arranged at one end of the sliding beam 8 away from the lifting beam 7. The clamping bar 9 is in a 7-shape. The moving direction of the clamping bar 9 on the horizontal plane is perpendicular to the moving direction of the sliding beam 8. The automatic feeding mechanism also includes a mounting base The mounting base 34, the rotating base 44, the third cylinder 35 and the fourth cylinder 36, the main shaft 45 is fixed at the bottom of the rotating base 44, the main shaft 45 is rotatably mounted on the top of the mounting base 34, a driving motor is arranged in the mounting base 34, the output shaft of the driving motor is connected to the main shaft 45, the third cylinder 35 is vertically mounted on the top of the rotating base 44, the telescopic shaft of the third cylinder 35 is connected to the lifting beam 7, the fourth cylinder 36 is horizontally mounted on the lifting beam 7, the telescopic shaft of the fourth cylinder 36 is connected to the sliding The sliding beam 8 is driven by the fourth cylinder 36 to move on the lifting beam 7, so that the sliding beam 8 drives the clamping bar 9 to move close to or away from the hollow stacking box 4 on the horizontal plane. The lifting beam 7 is driven up and down by the third cylinder 35, so that the clamping bar 9 moves close to or away from the hollow stacking box 4 in the vertical direction. When loading, the lifting beam 7 cooperates with the sliding beam 8 to first extend the clamping bar 9 into the annular The inner circle of the magnetic core, and then the two clamping bars 9 move close to the inner circle of the annular magnetic core, so that the two clamping bars 9 are pressed against the inner circle of the annular magnetic core to complete the clamping of the annular magnetic core, and then the annular magnetic core is driven to move upward out of the hollow stacking box 4, and then the main shaft 45 is driven by the driving motor to rotate, the main shaft 45 drives the rotating base 44 to rotate, and the rotating base 44 drives the annular magnetic core to deflect, so that the annular magnetic core corresponds to the position of the inductor winding device, and finally the winding loading is completed again through the cooperation of the lifting beam 7 and the sliding beam 8.

[0031] Furthermore, if Figures 5 to 7As shown, a rectangular notch 37 is provided at one end of the sliding beam 8 away from the lifting beam 7, and a bidirectional threaded screw 38 is rotatably arranged in the rectangular notch 37. The two threaded sections of the bidirectional threaded screw 38 with opposite thread rotation directions are both threadedly sleeved with screw sliders 39, and the screw sliders 39 are slidably adapted to the rectangular notch 37. The horizontal sections of the two clamping bars 9 are respectively connected to the two screw sliders 39, and one end of the bidirectional threaded screw 38 passes through the sliding beam 8 to connect to the driven pulley 40. A motor 41 is installed on the sliding beam 8, and the output shaft of the motor 41 is connected to the driving pulley 42. The wheel 42 is connected to the driven pulley 40 through the belt 43, the motor 41 drives the active pulley 42 to rotate, the active pulley 42 drives the driven pulley 40 to rotate through the belt 43, and the driven pulley 40 drives the bidirectional threaded screw 38 to rotate. Since the threads of the two screw sliders 39 have opposite rotation directions, the movement directions of the two screw sliders 39 are opposite. The two screw sliders 39 respectively drive the two clamping bars 9 to move, so that the two clamping bars 9 move away from each other and press against the annular magnetic core to complete the clamping operation, or the two clamping bars 9 move close to each other to release the annular magnetism to complete the unloading operation.

[0032] Embodiment 3

[0033] Since the annular magnetic cores are continuously stacked in the hollow stacking box 4, the height position of the top annular magnetic core is not fixed, resulting in the inability of the automatic feeding mechanism to accurately identify the position of the top annular magnetic core to complete the feeding. Therefore, based on the second embodiment, as shown in FIG. Figure 1 and Figure 2 As shown, a detection plate 46 is provided above the hollow stacking box 4, and a photoelectric sensor 47 is installed at the bottom of the detection plate 46. The photoelectric sensor 47 is used to detect the stacking height of the annular magnetic cores in the hollow stacking box 4. The side wall of the hollow stacking box 4 is provided with an avoidance groove 48. The avoidance groove 48 allows the horizontal section of the clamping bar 9 to penetrate into the hollow stacking box 4. The height position of the uppermost annular magnetic core is detected by the photoelectric sensor 47, so as to determine the moving distance of the lifting beam 7 driven by the third cylinder 35, so as to realize the accurate loading of the annular magnetic core.

[0034] Embodiment 4

[0035] Based on the third embodiment, Figures 1 to 3As shown, the hollow stacking box 4 is provided with a horizontal slide groove 10 at the position where the support block 6 is set, and the support block 6 is slidably adapted to the horizontal slide groove 10. Springs 11 are provided on both sides of the support block 6. One end of the spring 11 is connected to the support block 6, and the other end is connected to the outer wall of the hollow stacking box 4. When the spring 11 is in a normal state, one end of the support block 6 penetrates into the hollow stacking box 4. A driving notch 12 is provided through the support block 6. The driving notch 12 is located on the outer side of the hollow stacking box 4. The side wall of the lifting table 3 is symmetrically provided with two sets of lifting mechanisms. The two groups of lifting mechanisms correspond to the two support blocks 6 respectively. The lifting mechanisms include a horizontal rod 13, a lifting rod 14 and a wedge block 15. One end of the horizontal rod 13 is connected to the lifting platform 3, and the other end is connected to the bottom of the lifting rod 14. The horizontal rod 13 is located below the positioning platform 2, and the lifting rod 14 is located outside the positioning platform 2. The wedge block 15 is located in the driving slot 12 and connected to the support block 6. The bottom of the wedge block 15 is provided with a wedge surface 16, which is located on the moving path of the lifting rod 14 and is used to squeeze the support block 6 away from the hollow code The center of the stacking box 4 is moved, and the lifting rod 14 is arranged on the outside of the positioning platform 2 through the horizontal rod 13. The horizontal rod 13 always moves below the positioning platform 2 so that it will not interfere with the positioning platform 2. The lifting table 3 will drive the horizontal rod 13 and the lifting rod 14 to move upward during the process of lifting the annular magnetic core. In the process of the lifting table 3 lifting the annular magnetic core into the hollow stacking box 4, the lifting rod 14 first contacts the wedge surface 16 of the wedge block 15. At this time, the annular magnetic core on the lifting table 3 is located below the support block 6. The lifting rod 14 squeezes the wedge surface 16 to move the support block 16 away from the center of the hollow stacking box 4, so that the support block 4 stretches the spring 11 to move into the horizontal slide groove 10, so that the annular magnetic core on the lifting table can smoothly pass through the support block 4. At this time, the lifting rod 14 passes through the wedge block 15, and the wedge block 15 is against the side wall of the lifting rod 14 under the action of the spring 11. Therefore, in the process of stacking the annular magnetic core, the annular magnetic core will not collide with the support block 6, thereby avoiding the problem of the annular magnetic core being squeezed and damaged by the support block 4.

[0036] Furthermore, if Figures 1 to 7As shown, an escape space is formed between one side of the wedge block 15 and the side wall of the driving slot 12, a rotating shaft 17 is coaxially fixed to the bottom of the lifting table 3, and the rotating shaft 17 is rotatably installed on the lifting base 18 to drive the lifting rod 14 to rotate into the escape space, a fixed base 19 is arranged below the lifting base 18, and a first cylinder 20 is vertically installed on the top of the fixed base 19, and the telescopic shaft of the first cylinder 20 is connected to the lifting base 18, and a second cylinder 21 is horizontally installed on the lifting base 18, and the telescopic shaft of the second cylinder 21 is connected to a rack 22, and a gear 23 is mounted on the rotating shaft 17, and the gear 23 meshes with the rack 22. When the lifting table 3 drives the annular magnetic core thereon to move above the supporting block 6, the second cylinder 21 drives the rack 22 to move, and the meshing of the rack 22 and the gear 23 drives the rotating shaft 17 to rotate, and the rotating shaft 17 drives The movable lifting table 3 deflects, and the lifting table 3 drives the lifting rod 14 to deflect. Since the support block 6 has horizontal movement freedom, the lifting rod 14 can deflect smoothly, so that the lifting rod 14 is deflected into the avoidance space, and the lifting rod 14 is separated from the wedge block 15. At this time, the support block 6 is reset under the reaction force of the spring 11, and the support block 6 moves and resets close to the center of the hollow stacking box 4. Finally, the first cylinder 20 drives the lifting base 18 to move downward, and the lifting base 18 drives the lifting table 3 to move downward, so that the lifting table 3 is reset downward, and the annular magnetic core remains on the support block 6. Finally, the second cylinder 21 drives the rack 22 to reset, so that the lifting table 3 rotates and drives the lifting rod 14 to reset, and then repeats the above process to automatically stack the next annular magnetic core delivered to the position by the conveyor belt 1, thereby realizing automatic stacking operation and will not cause damage to the annular magnetic core.

[0037] Embodiment 5

[0038] Based on the fourth embodiment, Figures 1 to 5As shown, two transverse limit strips 24 are arranged on the positioning platform 2 at intervals, and the lifting table 3 is located between the transverse limit strips 24. The two transverse limit strips 24 are arranged at intervals along the conveying direction of the vertical conveyor belt 1. A longitudinal limit strip 25 is arranged on the positioning platform 2, and the lifting table 3 is located between the longitudinal limit strip 25 and the conveyor belt 1. When the transverse limit strip 24 and the longitudinal limit strip 25 are in contact with the annular magnetic core, the annular magnetic core is located on the lifting table 3. Two limit rods 26 are arranged above the conveying surface of the conveyor belt 1. A conveying channel for the annular magnetic core is formed between the two limit rods 26. The limit rods 26 are connected to the conveying frame of the conveyor belt 1. The two limit rods 26 limit the conveyance of the annular magnetic core, so that the annular magnetic core can be accurately conveyed between the two transverse limit strips 24. The annular magnetic core on the conveyor belt 1 pushes the annular magnetic core in front to move, so that the annular magnetic core on the positioning platform 2 moves close to the lifting table 3 until the frontmost annular magnetic core contacts the longitudinal limit strip 25 and stops moving. At this time, the frontmost annular magnetic core is placed on the top surface of the lifting table 3, so that the lifting table 3 can smoothly lift the annular magnetic core to move, and the positioning of the annular magnetic core is completed through the action of the transverse limit strip 24 and the longitudinal limit strip 25, so that the lifting table 3 can smoothly drive the annular magnetic core to move into the hollow stacking box 4.

[0039] Furthermore, an inclined guide rod 27 is connected to one end of the limit rod 26 away from the positioning platform 2, and the spacing between the two inclined guide rods 27 gradually decreases in the direction approaching the limit rod 26. An exciter is installed on the conveying frame of the conveyor belt 1. The annular magnetic core is placed on the conveyor belt 1 so that it is located between the two inclined guide rods 27. The annular magnetic core is guided and conveyed by the inclined wire rod 27 so that it is conveyed between the two limit rods 26 to achieve limited conveyance of the annular magnetic core. The conveyor belt 1 is vibrated by the exciter to prevent the annular magnetic core from being stuck between the two inclined guide rods 27, so that the annular magnetic core can smoothly enter between the two limit rods 26.

[0040] Embodiment 6

[0041] In order to ensure that the annular magnetic core can be smoothly transported, the distance between the two transverse limit strips 24 is slightly larger than the diameter of the annular magnetic core, resulting in a deviation in the position of the annular magnetic core on the lifting table 3, and the annular magnetic core will be offset and unable to enter the hollow stacking box 4. For this reason, based on the fifth embodiment, as Figures 1 to 4As shown, a small diameter hole 49 and a large diameter hole 28 are provided on the top of the lifting table 3 from top to bottom in sequence, a limit plate 29 is slidably fitted in the large diameter hole 28, a positioning cone 30 is slidably provided in the small diameter hole 49, and the diameter of the positioning cone 30 gradually decreases in the direction approaching the hollow stacking box 4, the large diameter end of the positioning cone 30 is connected to the limit plate 29, a permanent magnet 31 is provided at the bottom of the limit plate 29, an electromagnet 32 ​​is installed below the permanent magnet 31, a positioning spring 33 is provided between the electromagnet 32 ​​and the permanent magnet 31, and two ends of the positioning spring 33 are respectively connected to the limit plate 29 and the lifting table 3, the electromagnet 32 ​​is energized to generate a magnetic pole with the same magnetic property as the permanent magnet 31, when the positioning spring 33 is in a normal state, the positioning cone 30 is completely located in the small diameter hole 49, and when the annular magnetic core contacts the longitudinal limit strip 25, the electromagnet 32 ​​is energized to repel the permanent magnet 31, so that the positioning cone 30 is stretched and positioned The spring 33 moves upward, and since the top of the positioning cone 30 has the smallest diameter, the top of the positioning cone 30 can be smoothly inserted into the inner ring of the annular magnetic core. As the positioning cone 30 moves upward, the positioning cone 30 will contact the inner ring of the annular magnetic core and drive the annular magnetic core to move, thereby adjusting the position of the annular magnetic core so that the annular magnetic core is accurately placed on the lifting table 3, so that the annular magnetic core can smoothly enter the hollow stacking box 4. When the annular magnetic core enters the hollow stacking box 4, the lifting table 3 still passes through the positioning circular hole 5, so that the lifting table 3 prevents the annular magnetic core from moving behind, and at the same time, the electromagnet 32 ​​is powered off, so that the positioning cone 30 returns to the small diameter hole 49 under the reaction force of the positioning spring 33, without affecting the stacking of the annular magnetic core. When the stacking operation is completed, the lifting table 3 moves downward and resets, so that the next annular magnetic core can continue to move to the lifting table 3, thereby realizing the precise stacking operation of the annular magnetic core.

Claims

1. An automatic feeding device for toroidal inductor winding, comprising a conveyor belt (1), characterized in that: The output end of the conveyor belt (1) is provided with a positioning and coding mechanism, and an automatic feeding mechanism is provided above the positioning and coding mechanism. The positioning and coding mechanism comprises a positioning platform (2), a lifting round platform (3) and a hollow stacking box (4). A positioning round hole (5) is provided through the positioning platform (2), and the lifting round platform (3) is arranged in the positioning round hole (5). The lifting round platform (3) has the freedom to move along the height direction of the positioning platform (2). The hollow stacking box (4) is arranged directly above the lifting round platform (3). The toroidal inductor is stacked in the hollow stacking box (4) along the vertical direction. Two support blocks (6) are symmetrically arranged in the horizontal direction in the hollow stacking box (4). The support blocks (6) are slidably arranged in the hollow stacking box (4). The support blocks (6) have the freedom to move in the horizontal direction and are used to adjust the distance between the two support blocks (6). The toroidal inductor is supported by the support blocks (6). The diameter of the lifting table (3) is smaller than the outer diameter of the toroidal inductor, and the diameter of the lifting table (3) is larger than the inner diameter of the toroidal inductor. The automatic loading mechanism comprises a lifting beam (7), a sliding beam (8) and a clamping bar (9); the lifting beam (7) has the freedom to move along the height direction of the hollow stacking box (4); the sliding beam (8) is slidably arranged on the lifting beam (7); the sliding beam (8) moves close to or away from the hollow stacking box (4); two clamping bars (9) are arranged at one end of the sliding beam (8) away from the lifting beam (7); the clamping bars (9) are in the shape of a figure 7; the moving direction of the clamping bar (9) on the horizontal plane is perpendicular to the moving direction of the sliding beam (8).

2. The automatic feeding device for toroidal inductor winding according to claim 1, characterized in that: The hollow stacking box (4) is provided with a horizontal slide groove (10) at the position where the support block (6) is set, and the support block (6) is slidably adapted to the horizontal slide groove (10). Springs (11) are provided on both sides of the support block (6), one end of the spring (11) is connected to the support block (6), and the other end is connected to the outer wall of the hollow stacking box (4). When the spring (11) is in a normal state, one end of the support block (6) penetrates into the hollow stacking box (4).

3. The automatic feeding device for toroidal inductor winding according to claim 2, characterized in that: The support block (6) is provided with a driving slot (12) extending therethrough, and the driving slot (12) is located on the outer side of the hollow stacking box (4). The side wall of the lifting platform (3) is symmetrically provided with two groups of lifting mechanisms, and the two groups of lifting mechanisms correspond to the two support blocks (6) respectively. The lifting mechanisms include a horizontal rod (13), a lifting rod (14) and a wedge block (15). One end of the horizontal rod (13) is connected to the lifting platform (3), and the other end is connected to the lifting rod (14). The bottom of the hollow stacking box (4) is provided with a wedge-shaped surface (16), and the wedge-shaped surface (16) is located on the moving path of the lifting rod (14) and is used to squeeze the support block (6) to move away from the center of the hollow stacking box (4).

4. The automatic feeding device for toroidal inductor winding according to claim 3, characterized in that: An escape space is formed between one side of the wedge block (15) and the side wall of the driving slot (12); a rotating shaft (17) is coaxially fixed to the bottom of the lifting table (3); the rotating shaft (17) is rotatably mounted on a lifting base (18) and is used to drive the lifting rod (14) to rotate into the escape space; a fixed base (19) is arranged below the lifting base (18); a first cylinder (20) is vertically mounted on the top of the fixed base (19); a telescopic shaft of the first cylinder (20) is connected to the lifting base (18); a second cylinder (21) is horizontally mounted on the lifting base (18); a telescopic shaft of the second cylinder (21) is connected to a rack (22); a gear (23) is mounted on the rotating shaft (17); the gear (23) meshes with the rack (22).

5. The automatic feeding device for toroidal inductor winding according to claim 1, characterized in that: Two transverse limit strips (24) are arranged at intervals on the positioning platform (2), the lifting platform (3) is located between the transverse limit strips (24), the two transverse limit strips (24) are arranged at intervals along the conveying direction perpendicular to the conveyor belt (1), a longitudinal limit strip (25) is arranged on the positioning platform (2), the lifting platform (3) is located between the longitudinal limit strip (25) and the conveyor belt (1), when the transverse limit strip (24) and the longitudinal limit strip (25) are in contact with the annular magnetic core, the annular magnetic core is located on the lifting platform (3), two limit rods (26) are arranged above the conveying surface of the conveyor belt (1), a conveying channel for the annular magnetic core is formed between the two limit rods (26), and the limit rods (26) are connected to the conveying frame of the conveyor belt (1).

6. The automatic feeding device for toroidal inductor winding according to claim 5, characterized in that: An end of the limit rod (26) away from the positioning platform (2) is connected to an inclined guide rod (27), and the spacing between the two inclined guide rods (27) gradually decreases in the direction approaching the limit rod (26). An exciter is installed on the conveying frame of the conveyor belt (1).

7. The automatic feeding device for toroidal inductor winding according to claim 5, characterized in that: The top of the lifting platform (3) is provided with a small diameter hole (49) and a large diameter hole (28) in sequence from top to bottom. A limit plate (29) is slidably fitted in the large diameter hole (28). A positioning cone (30) is slidably arranged in the small diameter hole (49). The diameter of the positioning cone (30) gradually decreases in a direction approaching the hollow stacking box (4). The large diameter end of the positioning cone (30) is connected to the limit plate (29). A permanent magnet ( 31), an electromagnet (32) is installed below the permanent magnet (31), a positioning spring (33) is arranged between the electromagnet (32) and the permanent magnet (31), two ends of the positioning spring (33) are respectively connected to the limit plate (29) and the lifting table (3), the electromagnet (32) generates a magnetic pole with the same magnetic property as the permanent magnet (31) when energized, and when the positioning spring (33) is in a normal state, the positioning cone (30) is completely located in the small diameter hole (49).

8. The automatic feeding device for toroidal inductor winding according to claim 1, characterized in that: The automatic feeding mechanism also includes a mounting base (34), a rotating base (44), a third cylinder (35) and a fourth cylinder (36); a main shaft (45) is fixed at the bottom of the rotating base (44); the main shaft (45) is rotatably mounted on the top of the mounting base (34); a driving motor is arranged in the mounting base (34); the output shaft of the driving motor is connected to the main shaft (45); the third cylinder (35) is vertically mounted on the top of the rotating base (44); the telescopic shaft of the third cylinder (35) is connected to the lifting beam (7); the fourth cylinder (36) is horizontally mounted on the lifting beam (7); the telescopic shaft of the fourth cylinder (36) is connected to the sliding beam (8).

9. The automatic feeding device for toroidal inductor winding according to claim 1, characterized in that: A rectangular notch (37) is provided at one end of the sliding beam (8) away from the lifting beam (7), a bidirectional threaded screw (38) is rotatably arranged in the rectangular notch (37), two threaded sections of the bidirectional threaded screw (38) with opposite thread rotation directions are both threadedly sleeved with a screw slider (39), the screw slider (39) is slidably adapted to the rectangular notch (37), the horizontal sections of the two clamping strips (9) are respectively connected to the two screw sliders (39), one end of the bidirectional threaded screw (38) passes through the sliding beam (8) and is connected to a driven pulley (40), a motor (41) is installed on the sliding beam (8), the output shaft of the motor (41) is connected to a driving pulley (42), and the driving pulley (42) is connected to the driven pulley (40) through a belt (43).

10. The automatic feeding device for toroidal inductor winding according to claim 9, characterized in that: A detection plate (46) is arranged above the hollow stacking box (4), and a photoelectric sensor (47) is installed at the bottom of the detection plate (46). The photoelectric sensor (47) is used to detect the stacking height of the annular magnetic core in the hollow stacking box (4). The side wall of the hollow stacking box (4) is provided with an avoidance groove (48), and the avoidance groove (48) allows the horizontal section of the clamping strip (9) to penetrate into the hollow stacking box (4).

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