Gap cutting processing device for soft magnetic ferrite core production

Abstract

The invention relates to the field of magnetic core processing, in particular to a gap cutting processing device for producing a soft magnetic ferrite magnetic core. According to an existing device, during cutting and feeding, fragile magnetic cores are prone to being damaged, continuous cutting is not convenient, after cutting is completed, two parts of different magnetic cores are prone to being mixed, and the situation that the magnetic cores are not matched is caused. The invention discloses a gap cutting processing device for producing a soft magnetic ferrite core. The gap cutting processing device comprises a supporting plate and the like, a guide rail is fixedly connected to the supporting plate, an electric sliding block is slidably connected to the guide rail, a driving motor is fixedly connected to the upper portion of the electric sliding block, and a cutting knife is arranged on an output shaft of the driving motor. The magnetic cores are buffered through the buffering wheels, so that the fragile magnetic cores are not prone to being damaged before being cut, the magnetic cores are sequentially pushed into the containing grooves through the pushing blocks to be cut, continuous cutting of the multiple magnetic cores is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of magnetic core processing, in particular to a slotting processing device for producing soft ferrite magnetic cores. Background Art

[0002] Most switching power supply transformers require an air gap in their cores to prevent magnetic saturation and maximize energy storage. This gap can be created during production (e.g., with metal powder cores) or through post-processing (e.g., grinding, padding with non-magnetic materials, etc.). For example, ferrite cores are prone to saturation due to their high permeability, so a gap is often cut to reduce their effective permeability. Existing toroidal cores are typically completely cut into two symmetrical halves.

[0003] However, the existing device is easy to damage the fragile magnetic core during cutting and loading, and is not convenient for continuous cutting. After cutting, the two parts of different magnetic cores are easy to mix, resulting in mismatched magnetic cores. Summary of the Invention

[0004] In order to overcome the shortcomings of the background technology, the purpose of the present invention is to provide a slitting processing device for producing soft ferrite cores, which is convenient for continuous cutting, not easy to damage the cores, and convenient for collecting the cores after cutting.

[0005] Technical solution: A cutting processing device for the production of soft ferrite cores, including a support plate, a guide rail fixedly connected to the support plate, an electric slider slidably connected to the guide rail, a drive motor fixedly connected to the upper part of the electric slider, a cutting knife provided on the output shaft of the drive motor, a positioning mechanism provided on the support plate, the positioning mechanism for placing and positioning the position of the magnetic core, a loading mechanism provided on the positioning mechanism, the loading mechanism for pushing the magnetic core to a specified position, a material return mechanism provided on the support plate, the material return mechanism for pushing out the cut magnetic core.

[0006] In addition, it is particularly preferred that the positioning mechanism includes a placing table, the placing table is fixedly connected to the support plate, a vertical groove is opened on the placing table, a placing groove is provided on the placing table, two unloading inclined surfaces are fixedly connected to one side of the placing table, two vertical poles are fixedly connected to the support plate, a connecting slide is slidably connected between the two vertical poles, a compression spring is connected between the connecting slide and the vertical poles, two extrusion rods are fixedly connected to the connecting slide, a protrusion is provided on the upper part of the extrusion rod, a friction pad is provided on the lower part of the extrusion rod, and an inclined cross bar is fixedly connected to the outer casing of the drive motor.

[0007] In addition, it is particularly preferred that the loading mechanism includes a fixed block, the fixed block is fixedly connected to the placing table, the upper part of the fixed block is fixedly connected to a support arm, the support arm is fixedly connected to a hopper, the fixed block is fixedly connected to an electric push rod, the telescopic rod of the electric push rod is fixedly connected to a push block, the push block is fixedly connected to two baffles, the upper surface of the baffles is in contact with the lower surface of the hopper, both sides of the hopper are fixedly connected to side frames, two moving blocks are slidably connected to the two side frames, a buffer spring is connected between the moving block and the side frames, the two moving blocks form a group, a buffer wheel is rotatably connected between the two moving blocks in each group, and a torsion spring is connected between the buffer wheel and the moving block.

[0008] In addition, it is particularly preferred that the material return mechanism includes two supporting cross bars, both of which are fixedly connected to the support plate, a push frame is slidably connected between the two supporting cross bars, a reset spring is connected between the pushing frame and the supporting cross bars, a vertical plate is fixedly connected to the pushing frame, a connecting block is fixedly connected to one side of the inclined cross bar, the lower part of the connecting block is connected to a swing block through a hinge, and the lower part of the swing block is fixedly connected to a spring sheet.

[0009] In addition, it is particularly preferred that it also includes a collection mechanism, which is arranged on the support plate, the collection mechanism is connected to the electric slider, and the collection mechanism is used to collect the cut magnetic cores in pairs, and the collection mechanism includes a limiting rod, the limiting rod is fixedly connected to the support plate, a sliding plate is slidably connected to the limiting rod, a supporting spring is connected between the sliding plate and the limiting rod, a separating spacer is fixedly connected to the sliding plate, the separating spacer is located in the vertical groove of the placing table, and the separating spacer is located between the two unloading inclined surfaces, a top rod is fixedly connected to the sliding plate, and the inclined A guide frame is fixedly connected to one side of the surface cross bar, and the side surface of the guide frame is a parallelogram. A positioning frame is fixedly connected between the two unloading inclined surfaces, and a partition is fixedly connected to the middle of the positioning frame. Two side rods are fixedly connected to one side of the support plate, and a movable plate is slidably connected between the two side rods. A tension spring is connected between the movable plate and the support plate, and a straight groove is opened in the middle of the movable plate. A baffle rod is fixedly connected to one side of the movable plate, and two positioning rods are fixedly connected to one side of the support plate. A collecting barrel is placed between the two positioning rods, and a right-angle rod is fixedly connected to one side of the electric slider, and the right-angle rod is in contact with the baffle rod.

[0010] 1. The buffer wheel buffers the magnetic core, making it less likely for the fragile magnetic core to be damaged before cutting. The push block pushes one magnetic core into the placement slot for cutting one by one, thus achieving continuous cutting of multiple magnetic cores and improving the efficiency of magnetic core cutting.

[0011] 2. The separation spacer moves upward and is inserted between the two parts of the cut magnetic core, so that the two parts of the magnetic core are separated. Then the magnetic core is pushed out by the push frame. The two parts of the magnetic core are in an isolated state when they are pushed out. Then they fall onto the moving plate through the blanking slope and continue to be separated by the partition. Then when the electric slider drives the right-angle rod to reset, the right-angle rod will squeeze again and drive the baffle and the moving plate to move horizontally away from the support plate. Since the positioning frame blocks the magnetic core, the magnetic core will not move horizontally with the moving plate. When the moving plate is evacuated, the magnetic core falls downward into the collecting barrel. In this way, each magnetic core can be cut into two parts and then fall into the collecting barrel in a matching manner. In continuous operation, it is not easy to mix the two parts of different magnetic cores, which may cause the magnetic cores to be mismatched. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the positioning mechanism of the present invention.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the feeding mechanism of the present invention.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the material return mechanism of the present invention.

[0016] Figure 5 It is a schematic diagram of the separated three-dimensional structure of the connecting block and the swing block of the present invention.

[0017] Figure 6 It is a partial three-dimensional structural schematic diagram of the material collecting mechanism of the present invention.

[0018] Figure 7 It is a schematic diagram of the three-dimensional structure of the material collecting mechanism of the present invention.

[0019] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning rod and the collecting barrel of the present invention.

[0020] Figure 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the collecting barrel of the present invention.

[0021] In the figure: 1, support plate, 2, guide rail, 3, electric slider, 41, drive motor, 42, cutting knife, 51, placement table, 52, placement slot, 53, unloading slope, 54, vertical rod, 55, connecting slide, 56, compression spring, 57, extrusion rod, 58, inclined cross bar, 61, fixed block, 62, support arm, 63, hopper, 64, electric push rod, 65, push block, 66, stop bar, 67, side frame, 68, moving block, 69, buffer spring, 610, buffer wheel, 61 1. Torsion spring, 71. Support cross bar, 72. Push frame, 73. Return spring, 74. Vertical plate, 75. Connecting block, 76. Swing block, 77. Spring sheet, 81. Limit rod, 82. Sliding plate, 83. Support spring, 84. Separation spacer, 85. Push rod, 86. Guide frame, 87. Positioning frame, 88. Partition, 89. Side rod, 891. Tension spring, 810. Moving plate, 811. Stop rod, 812. Positioning rod, 813. Collecting barrel, 814. Right-angle rod. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1 A cutting processing device for producing soft ferrite cores, such as Figure 1-9 As shown, it includes a support plate 1, a guide rail 2 is fixedly connected to the support plate 1, an electric slider 3 is slidably connected to the guide rail 2, a drive motor 41 is fixedly connected to the upper part of the electric slider 3, a cutting knife 42 is provided on the output shaft of the drive motor 41, a positioning mechanism is provided on the support plate 1, the positioning mechanism is used to place and locate the position of the magnetic core, a loading mechanism is provided on the positioning mechanism, the loading mechanism is used to push the magnetic core to a specified position, and a material return mechanism is provided on the support plate 1, the material return mechanism is used to push out the cut magnetic core.

[0024] The positioning mechanism includes a placing table 51, which is fixedly connected to the support plate 1. A vertical groove is provided on the placing table 51, and a placing groove 52 is provided on the placing table 51. Two unloading slopes 53 are fixedly connected to one side of the placing table 51. Two vertical rods 54 are fixedly connected to the support plate 1. A connecting slide 55 is slidably connected between the two vertical rods 54. A compression spring 56 is connected between the connecting slide 55 and the vertical rod 54. Two extrusion rods 57 are fixedly connected to the connecting slide 55. A protrusion is provided on the upper part of the extrusion rod 57, and a friction pad is provided on the lower part of the extrusion rod 57. A sloped cross bar 58 is fixedly connected to the outer shell of the driving motor 41.

[0025] The loading mechanism includes a fixed block 61, which is fixedly connected to the placing table 51, and a support arm 62 is fixedly connected to the upper part of the fixed block 61, and a hopper 63 is fixedly connected to the support arm 62, and an electric push rod 64 is fixedly connected to the fixed block 61, and a push block 65 is fixedly connected to the telescopic rod of the electric push rod 64, and two baffles 66 are fixedly connected to the push block 65, and the upper surface of the baffle 66 contacts the lower surface of the hopper 63, and both sides of the hopper 63 are fixedly connected to side frames 67, and two moving blocks 68 are slidably connected to the two side frames 67, and a buffer spring 69 is connected between the moving block 68 and the side frames 67. The two moving blocks 68 form a group, and a buffer wheel 610 is rotatably connected between the two moving blocks 68 in each group, and a torsion spring 611 is connected between the buffer wheel 610 and the moving block 68.

[0026] The material return mechanism includes two supporting cross bars 71, and the two supporting cross bars 71 are fixedly connected to the supporting plate 1. A pushing frame 72 is slidably connected between the two supporting cross bars 71, and a reset spring 73 is connected between the pushing frame 72 and the supporting cross bars 71. A vertical plate 74 is fixedly connected to the pushing frame 72, and a connecting block 75 is fixedly connected to one side of the inclined cross bar 58. The lower part of the connecting block 75 is connected to a swing block 76 through a hinge, and the lower part of the swing block 76 is fixedly connected to a spring sheet 77.

[0027] In actual work, the operator needs to cut the annular magnetic core along the center of symmetry to cut it into two symmetrical parts. First, the operator first puts several magnetic cores into the hopper 63 from top to bottom. When the magnetic core is put into the hopper 63, the magnetic core will fall downward. Since the distance between the two buffer wheels 610 is less than the diameter of the magnetic core, the magnetic core will contact and squeeze the buffer wheels 610 on both sides during the downward fall. The buffering of the buffer spring 69 and the torsion spring 611 reduces the speed of the magnetic core falling downward and is buffered. Since the soft ferrite core is fragile, buffering it can prevent the magnetic core from being easily damaged before cutting. The buffered magnetic core finally falls on the placement table 51, and then the other magnetic cores are placed from bottom to The upper surface of a magnetic core stacked in the hopper 63 and dropped on the placement table 51 is lower than the lower surface of the hopper 63, and then the operator starts the electric push rod 64. The telescopic rod of the electric push rod 64 will drive the push block 65 to extend, and the push block 65 will push the magnetic core dropped on the placement table 51 to move horizontally. At the same time, the blocking bar 66 will block the other magnetic cores in the hopper 63 to prevent them from falling down. Then the push block 65 continues to push the magnetic core and finally pushes the magnetic core into the placement slot 52. Then the electric push rod 64 is reset. After the electric push rod 64 is reset, the blocking bar 66 no longer blocks the magnetic core in the hopper 63. The magnetic core in the hopper 63 falls downward due to gravity, and so on, to achieve continuous loading. Then the operator starts the drive motor 41 and the electric push rod again The slider 3 and the driving motor 41 drive the cutting blade 42 to rotate at a high speed. The electric slider 3 moves horizontally to drive the cutting blade 42 to move horizontally in the direction close to the magnetic core. The driving motor 41 also drives the inclined cross bar 58 to move horizontally as the electric slider 3 moves horizontally. After the inclined cross bar 58 moves a certain distance, it squeezes the protrusion on one of the squeezing rods 57, so that one of the squeezing rods 57 drives the other squeezing rod 57 to move downward for a certain distance through the connecting slide 55. The compression spring 56 is compressed, and the squeezing rod 57 moves downward for a certain distance to squeeze the upper surface of the magnetic core in the placement slot 52. The friction pad at the bottom of the squeezing rod 57 makes the magnetic core pressed more stably, and then the electric slider 3 continues to drive the cutting blade 42 to move horizontally, cutting. The knife 42 starts to cut the magnetic core again. When the cutting knife 42 moves horizontally toward the magnetic core with the electric slider 3 to cut, the inclined cross bar 58 will drive the swing block 76 and the connecting block 75 to move horizontally together with the electric slider 3. Then the spring piece 77 will hit the vertical plate 74 and make the swing block 76 swing. When the swing block 76 and the spring piece 77 pass the vertical plate 74, the swing block 76 and the spring piece 77 swing back to the original position. After the cutting of the magnetic core is completed, the electric slider 3 drives the cutting knife 42 to reset. When the swing block 76 and the spring piece 77 move horizontally together to reset, the spring piece 77 will hit the vertical plate 74. At this time, the swing block 76 will not swing. Then the swing block 76 continues to move horizontally, which will cause the spring piece 77 to squeeze the vertical plate 74 first.The vertical plate 74 and the push frame 72 move horizontally together, and the return spring 73 is compressed. The horizontal movement of the push frame 72 will push out the magnetic core cut into two symmetrical parts in the placement slot 52, and slide along the blanking slope 53. When the magnetic core is pushed out, the push frame 72 no longer moves horizontally, and the spring piece 77 deforms and passes through the vertical plate 74, breaking contact with the vertical plate 74. Then the return spring 73 drives the push frame 72 to return to its original position.

[0028] Example 2 On the basis of Example 1, Figure 6-9 As shown, it also includes a collection mechanism, which is arranged on the support plate 1, and the collection mechanism is connected to the electric slider 3. The collection mechanism is used to collect the cut magnetic cores in a matching manner, and the collection mechanism includes a limiting rod 81, and the limiting rod 81 is fixedly connected to the support plate 1. A sliding plate 82 is slidably connected to the limiting rod 81, and a support spring 83 is connected between the sliding plate 82 and the limiting rod 81. A separation spacer 84 is fixedly connected to the sliding plate 82, and the separation spacer 84 is located in the vertical groove of the placement table 51, and the separation spacer 84 is located between the two unloading inclined surfaces 53. A top rod 85 is fixedly connected to the sliding plate 82, and one side of the inclined cross bar 58 is fixedly connected to the guide frame 8 6. The side surface of the guide frame 86 is a parallelogram, and a positioning frame 87 is fixedly connected between the two unloading slopes 53. A partition 88 is fixedly connected to the middle of the positioning frame 87. Two side rods 89 are fixedly connected to one side of the support plate 1. A movable plate 810 is slidably connected between the two side rods 89. A tension spring 891 is connected between the movable plate 810 and the support plate 1. A straight groove is opened in the middle of the movable plate 810. A baffle 811 is fixedly connected to one side of the movable plate 810. Two positioning rods 812 are fixedly connected to one side of the support plate 1. A collecting barrel 813 is placed between the two positioning rods 812. A right-angle rod 814 is fixedly connected to one side of the electric slider 3, and the right-angle rod 814 is in contact with the baffle rod 811.

[0029] Initially, the tension spring 891 is in a tensioned state. When the inclined crossbar 58 moves horizontally along with the cutting blade 42 cutting the magnetic core, the electric slider 3 drives the right-angle rod 814 to move together, so that the right-angle rod 814 no longer squeezes the blocking rod 811, and the tension spring 891 is reset, so that the movable plate 810 moves horizontally and is close to the side of the support plate 1, and the partition 88 is inserted into the straight groove of the movable plate 810. The inclined crossbar 58 drives the guide frame 86 to move horizontally together, and the guide frame 86 moves horizontally toward the direction close to the top rod 85 for a distance. After the distance, since the side of the guide frame 86 is a parallelogram, the push rod 85 will be squeezed by one side of the guide frame 86 and move downward for a distance, and drive the sliding plate 82 and the separation spacer 84 to move downward for a distance. The support spring 83 is stretched. After the core is cut, the guide frame 86 is out of contact with the push rod 85. The support spring 83 drives the sliding plate 82 and the separation spacer 84 to move upward and reset. Then, when the guide frame 86 moves horizontally together with the cutting knife 42 to reset, the other side of the guide frame 86 squeezes the push rod 85. When the push rod 85 moves upward for a distance, the upward movement of the push rod 85 will drive the sliding plate 82 and the separation spacer 84 to move upward, the support spring 83 is compressed, and the separation spacer 84 moves upward to be inserted between the two parts of the cut core, so that the two parts of the core are separated. Then the core is pushed out by the push rack 72. The two parts of the core are in an isolated state when being pushed out, and then fall onto the moving plate 810 through the blanking slope 53 and continue to be separated by the partition 88. Then the electric slider 3 drives the right-angle rod 814 to reset. The right-angle rod 814 will squeeze again and drive the blocking rod 811 and the movable plate 810 to move horizontally in the direction away from the support plate 1. Since the positioning frame 87 blocks the magnetic core, the magnetic core will not move horizontally with the movable plate 810. When the movable plate 810 is withdrawn, the magnetic core falls downward into the collecting barrel 813. In this way, each magnetic core can be cut into two parts and then fall into the collecting barrel 813 in a matching manner. In continuous operation, it is not easy to mix the two parts of different magnetic cores, which may cause the magnetic cores to be mismatched.

[0030] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to be illustrative only and not to limit the present invention, which is to be defined by the claims.

Claims

1. A slitting processing device for producing soft ferrite cores, characterized by: The invention comprises a support plate (1), a guide rail (2) fixedly connected to the support plate (1), an electric slider (3) slidably connected to the guide rail (2), a drive motor (41) fixedly connected to the upper part of the electric slider (3), a cutting knife (42) provided on the output shaft of the drive motor (41), a positioning mechanism provided on the support plate (1), the positioning mechanism used to place and locate the position of the magnetic core, a feeding mechanism provided on the positioning mechanism, the feeding mechanism used to push the magnetic core to a specified position, and a material removal mechanism provided on the support plate (1), the material removal mechanism used to push out the cut magnetic core.

2. A slitting processing device for producing soft ferrite cores according to claim 1, characterized in that: The positioning mechanism includes a placement platform (51), the placement platform (51) is fixedly connected to the support plate (1), a vertical groove is opened on the placement platform (51), a placement groove (52) is provided on the placement platform (51), two blanking inclined surfaces (53) are fixedly connected to one side of the placement platform (51), two vertical rods (54) are fixedly connected to the support plate (1), a connecting slide (55) is slidably connected between the two vertical rods (54), a compression spring (56) is connected between the connecting slide (55) and the vertical rod (54), two extrusion rods (57) are fixedly connected to the connecting slide (55), a protrusion is provided on the upper part of the extrusion rod (57), and a friction pad is provided on the lower part of the extrusion rod (57), and an inclined cross bar (58) is fixedly connected to the housing of the drive motor (41).

3. A slitting processing device for producing soft ferrite cores according to claim 2, characterized in that: The feeding mechanism comprises a fixed block (61), the fixed block (61) is fixedly connected to the placing table (51), the upper part of the fixed block (61) is fixedly connected to a support arm (62), the support arm (62) is fixedly connected to a hopper (63), the fixed block (61) is fixedly connected to an electric push rod (64), the telescopic rod of the electric push rod (64) is fixedly connected to a push block (65), the push block (65) is fixedly connected to two baffles (66), the upper surface of the baffles (66) is in contact with the hopper The lower surface of the hopper (63) is in contact with the hopper (63), and both sides of the hopper (63) are fixedly connected to side frames (67). Two moving blocks (68) are slidably connected to the two side frames (67), and a buffer spring (69) is connected between the moving block (68) and the side frames (67). The two moving blocks (68) form a group, and a buffer wheel (610) is rotatably connected between the two moving blocks (68) in each group, and a torsion spring (611) is connected between the buffer wheel (610) and the moving block (68).

4. A slitting processing device for producing soft ferrite cores according to claim 3, characterized in that: The material return mechanism includes two support cross bars (71), both of which are fixedly connected to the support plate (1), a push frame (72) is slidably connected between the two support cross bars (71), a return spring (73) is connected between the push frame (72) and the support cross bars (71), a vertical plate (74) is fixedly connected to the push frame (72), a connecting block (75) is fixedly connected to one side of the inclined cross bar (58), a lower portion of the connecting block (75) is connected to a swing block (76) via a hinge, and a spring sheet (77) is fixedly connected to the lower portion of the swing block (76).

5. A slitting processing device for producing soft ferrite cores according to claim 4, characterized in that: The machine also includes a collecting mechanism, which is arranged on the support plate (1) and connected to the electric slider (3). The collecting mechanism is used to collect the cut magnetic cores. The collecting mechanism includes a limiting rod (81), which is fixedly connected to the support plate (1). A sliding plate (82) is slidably connected to the limiting rod (81). A support spring (83) is connected between the sliding plate (82) and the limiting rod (81). A separating spacer (84) is fixedly connected to the sliding plate (82). The separating spacer (84) is located in the vertical groove of the placing table (51), and the separating spacer (84) is located between the two unloading inclined surfaces (53). A top rod (85) is fixedly connected to the sliding plate (82). One side of the inclined cross bar (58) is fixedly connected to a guide frame (86). The guide frame (86) is fixedly connected to the guide frame. The side of the frame (86) is in the shape of a parallelogram. A positioning frame (87) is fixedly connected between the two material discharging inclined surfaces (53). A partition (88) is fixedly connected to the middle of the positioning frame (87). Two side rods (89) are fixedly connected to one side of the support plate (1). A movable plate (810) is slidably connected between the two side rods (89). A tension spring (891) is connected between the movable plate (810) and the support plate (1). A straight groove is opened in the middle of the movable plate (810). A stop rod (811) is fixedly connected to one side of the movable plate (810). Two positioning rods (812) are fixedly connected to one side of the support plate (1). A collecting barrel (813) is placed between the two positioning rods (812). A right-angle rod (814) is fixedly connected to one side of the electric slider (3), and the right-angle rod (814) contacts the stop rod (811).

Images