A magnetic core blanking machine and blanking method

Abstract

The present application relates to a magnetic core blanking machine and blanking method, and relates to the field of magnetic core processing technology. The blanking machine includes a feeding conveyor belt for conveying magnetic cores, a sintering plate is provided on one side of the length direction of the feeding conveyor belt, and the sintering plate and the feeding conveyor belt are located at the same height. A driving assembly is provided on the side of the feeding conveyor belt away from the sintering plate. The driving assembly includes a driving frame, and a pushing plate is slidably connected to the driving frame for pushing the magnetic core. A blocking plate is also slidably connected to the driving frame for blocking the magnetic core. A powdering mechanism for sprinkling powder onto the magnetic core is also provided on the feeding conveyor belt. In the process of pushing the magnetic core, the powdering mechanism sprinkles powder onto the magnetic core, and at this time, zirconium powder can easily fall on the side surface of the magnetic core, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

Description

Technical Field

[0001] The present application relates to the field of magnetic core processing technology, and in particular to a magnetic core blanking machine and a blanking method. Background Art

[0002] The magnetic core is a sintered magnetic metal oxide composed of a mixture of various iron oxides. The function of the magnetic core is to enhance and concentrate the magnetic field. By placing it in the magnetic circuit of the inductor coil, the magnetic induction intensity of the electromagnet can be significantly improved.

[0003] After the core raw materials are pressed, several cores need to be arranged, then the cores need to be sintered at high temperature, and finally machined into finished cores that meet application requirements.

[0004] Before sintering the magnetic core, zirconium powder is usually sprinkled on the outer surface of the magnetic core raw material. Usually, after several magnetic cores are arranged, the zirconium powder is evenly sprinkled on the outer surface of the magnetic core green body through a vibrating screen or other means to reduce the adhesion between several magnetic cores during high-temperature sintering.

[0005] With respect to the above-mentioned related technologies, currently, magnetic cores are usually arranged in an automated manner. In order to save space, more magnetic cores are usually arranged more closely. When zirconium powder is sprinkled on the outer surface of the magnetic core using a vibrating screen, it is difficult for the zirconium powder to contact the side surface of the magnetic core, resulting in a reduction in the amount of zirconium powder coverage on some parts of the outer surface of the magnetic core. This will result in less zirconium powder between the side surfaces of several magnetic core green sheets during the subsequent sintering of the magnetic core, and the contact area between the sides of the magnetic cores is still large, which can easily lead to the adhesion of the magnetic cores during the sintering process. Summary of the invention

[0006] In order to increase the amount of zirconium powder covering the outer surface of a magnetic core, the present application provides a magnetic core blanking machine and a blanking method.

[0007] In the first aspect, the present application provides a magnetic core blanking machine, which adopts the following technical solution:

[0008] A magnetic core arrangement machine comprises a feeding conveyor belt for conveying magnetic cores, a sintering plate is arranged on one side of the feeding conveyor belt in the length direction, the sintering plate and the feeding conveyor belt are located at the same height, a driving assembly is arranged on the side of the feeding conveyor belt away from the sintering plate, the driving assembly comprises a driving frame, a pushing plate is slidably connected to the driving frame for pushing the magnetic core, a blocking plate is also slidably connected to the driving frame for blocking the magnetic core, and a powder sprinkling mechanism is also provided on the feeding conveyor belt for sprinkling powder onto the magnetic core.

[0009] Optionally, the pushing plate is horizontally slidably connected to the driving frame, the pushing plate can slide to the upper end surface of the sintering plate, the baffle plate is vertically slidably connected to the driving frame, the baffle plate includes a horizontal plate and a vertical plate, the horizontal plate is located at the upper end of the vertical plate, the horizontal plate and the vertical plate are arranged perpendicular to each other, the horizontal plate is fixedly connected to one side of the vertical plate in the length direction, a baffle block is arranged at one end of the baffle plate in the length direction, the baffle block is fixedly connected to the vertical plate, and the baffle block is located on the side close to the driving frame.

[0010] Optionally, a cylinder 1 is vertically arranged in the driving frame, a yield opening is opened at the upper end of the driving frame, the piston rod of the cylinder 1 is fixedly connected to the horizontal plate, a support frame is provided on the side of the feeding conveyor belt close to the sintering plate, and the powder spreading mechanism includes a powder spreading hopper arranged on the support frame, zirconium powder is placed in the powder spreading hopper, a discharge opening is opened at the lower end of the powder spreading hopper, and an opening and closing plate for opening and closing the discharge opening is slidably provided at the lower end of the powder spreading hopper.

[0011] Optionally, a stirring shaft is rotatably connected to the inside of the powder hopper, and a plurality of stirring rods are arranged around the stirring shaft for stirring the zirconium powder in the powder hopper.

[0012] Optionally, a support plate is provided on one side of the feeding conveyor belt, and a gear 1 is rotatably connected to the upper end of the support plate, and a rack 1 is vertically provided on one side in the length direction of the horizontal plate, rack 1 and gear 1 are meshed with each other, and a bevel gear 1 is coaxially fixedly connected to the gear, and a bevel gear 2 is also rotatably connected to the support frame, bevel gear 2 is meshed with bevel gear 1, and a side of bevel gear 2 facing away from bevel gear 1 is coaxially fixedly connected to gear 2, and a rack 2 is provided on the opening and closing plate, and rack 2 and gear 2 are meshed with each other.

[0013] Optionally, a bulk material plate is provided on one side of the vertical plate away from the material blocking block, the bulk material plate is inclined, and one end of the bulk material plate away from the vertical plate is located at the lowest point.

[0014] Optionally, a powder spraying tank is provided at the upper end of the push plate, and a plurality of powder spraying heads for spraying zirconium powder onto the magnetic core are provided at equal intervals at the lower end of the powder spraying tank.

[0015] In a second aspect, the present application provides a blank arrangement method, comprising the following steps:

[0016] S1: Turn on the feeding conveyor belt to drive several magnetic cores to move toward the push plate;

[0017] S2: Close the feeding conveyor belt, operate the baffle plate to slide above the driving frame, operate the push plate to push out, and push the magnetic core onto the sintering plate;

[0018] S3: operating the powder spreading mechanism to spread zirconium powder onto the outer surfaces of the pushed magnetic cores;

[0019] S4: operate the push plate to recover and operate the powder spraying head to spray out zirconium powder.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. With the conveying of the feeding conveyor belt, several magnetic cores are driven to move to the material blocking plate, which blocks the magnetic cores. At this time, several magnetic cores are temporarily stored at the push plate. When the number of magnetic cores reaches a certain number, the material blocking plate can be operated to slide up, and then the push plate can be operated to slide, thereby driving several magnetic cores to move, and pushing several magnetic cores to the sintering plate. In the process of pushing the magnetic core, the powder spreading mechanism spreads powder on the magnetic core. At this time, zirconium powder can easily fall on the side surface of the magnetic core, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process;

[0022] 2. With the conveying of the feeding conveyor belt, several magnetic cores move to the bottom of the horizontal plate. When they move to the position of the blocking block, the blocking block blocks the magnetic cores. Under the limiting effect of the blocking block, the magnetic cores that move over later are neatly arranged between the push plate and the vertical plate. The structure is simple and the limiting is convenient.

[0023] 3. By operating the piston rod of cylinder 1 to extend, the horizontal plate is driven to move, and then the vertical plate is driven to move. As the pushing plate pushes several magnetic cores onto the sintering plate, the opening and closing plate is operated to slide out to expose the discharge port. At this time, the zirconium powder falls from the discharge port due to gravity and falls on the magnetic core being pushed, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0024] 4. The stirring shaft rotates inside the powder hopper, which drives the stirring rod to rotate, thereby stirring the zirconium powder in the powder hopper, thereby improving the fluidity of the zirconium powder. When the opening and closing plate is opened, the zirconium powder can flow out smoothly, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0025] 5. With the movement of the horizontal plate, rack one moves toward gear one, and rack one meshes with gear one. With the continuous movement of rack one, gear one rotates, thereby driving bevel gear one to rotate, thereby driving bevel gear two to rotate, thereby driving gear two to rotate, thereby driving rack two to rotate, thereby driving the opening and closing plate to move, exposing the discharge port. With the movement of the horizontal plate, the opening and closing plate can be driven to move, and it is convenient to drive the opening and closing plate.

[0026] 6. The zirconium powder in the powder hopper falls from the discharge port, falls to the bulk plate due to gravity, and then rolls along the inclination angle of the bulk plate and falls on the magnetic core below. The zirconium powder is scattered more evenly, and more zirconium powder falls on the magnetic core, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0027] 7. After the push plate moves a row of magnetic cores to the designated position on the sintering plate, the push plate is operated to restore. At this time, the powder spraying head is operated to spray zirconium powder on the side of the magnetic core in contact with the push plate, thereby further increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a schematic diagram of the overall structure of a magnetic core blanking machine.

[0029] Figure 2 It is a schematic diagram of the overall structure of a magnetic core arrangement machine from another angle.

[0030] Figure 3 It is a partial schematic diagram of a magnetic core blanking machine highlighting the stirring shaft.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. Feeding conveyor belt; 2. Sintering plate; 3. Driving frame; 31. Pushing plate; 32. Cylinder 2; 33. Material blocking plate; 331. Horizontal plate; 332. Vertical plate; 333. Material blocking block; 34. Cylinder 1; 4. Support frame; 41. Powder hopper; 42. Opening and closing plate; 5. Stirring shaft; 51. Stirring rod; 6. Gear 1; 61. Rack 1; 62. Bevel gear 1; 63. Bevel gear 2; 64. Gear 2; 65. Rack 2; 7. Bulk material plate; 8. Powder sprinkling tank; 81. Powder spraying head; 9. Limiting table. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] In a first aspect, an embodiment of the present application discloses a magnetic core blanking machine.

[0034] Reference Figure 1 and Figure 2 A magnetic core blanking machine and blanking method, including a feeding conveyor 1 for conveying magnetic cores, a sintering plate 2 is arranged on one side of the feeding conveyor 1 in the length direction, the sintering plate 2 and the feeding conveyor 1 are located at the same height, a driving assembly is arranged on the side of the feeding conveyor 1 away from the sintering plate 2, the driving assembly includes a driving frame 3, and a blocking plate 33 is slidably connected to the driving frame 3 for blocking the magnetic core; a pushing plate 31 is slidably connected to the driving frame 3 for pushing the magnetic core, and a powder sprinkling mechanism for sprinkling powder on the magnetic core is also provided on the feeding conveyor 1.

[0035] Reference Figure 1 and Figure 2 Two limit platforms 9 are arranged at the upper end of the feeding conveyor belt 1 , and a magnetic core channel is formed between the two limit platforms 9 , and a plurality of magnetic cores move from the magnetic core channel toward the direction of the baffle plate 33 .

[0036] Reference Figure 1 and Figure 2 The lifting plate 331 is fixed to the upper and lower ends of the support frame 332, and the lifting plate 332 is fixed to the upper and lower ends of the support frame 333. The lifting plate 331 is fixed to the upper and lower ends of the support frame 332, and the lifting plate 331 is fixed to the upper and lower ends of the support frame 332.

[0037] Reference Figure 1 and Figure 2 , wherein the push plate 31 is also located below the horizontal plate 331 in the initial state, and the push plate 31 is horizontally slidably connected to the driving frame 3. As the number of magnetic cores in front of the push plate 31 reaches a certain number, the loading conveyor belt 1 is controlled to stop moving; a cylinder 34 is vertically arranged in the driving frame 3, and a clearance opening is opened at the upper end of the driving frame 3. The piston rod of the cylinder 34 is fixedly connected to the horizontal plate 331, and the piston rod of the operating cylinder 34 is extended, thereby driving the blocking plate 33 to slide above the loading conveyor belt 1.

[0038] Reference Figure 1 and Figure 2 A support plate is provided on the side of the feeding conveyor belt 1 away from the sintering plate 2, and a gear 6 is rotatably connected to the upper end of the support plate, and a bevel gear 6 is coaxially fixedly connected to the gear 6. A bevel gear 63 is also rotatably connected to the support frame 4, and the bevel gear 63 and the bevel gear 62 are meshed with each other. A gear 64 is coaxially fixedly connected to the side of the bevel gear 63 away from the bevel gear 62, and a rack 65 is provided on the opening and closing plate 42, and the rack 65 and the gear 64 are meshed with each other.

[0039] Reference Figure 2 and Figure 3A support frame 4 is provided on one side of the feeding conveyor belt 1 close to the sintering plate 2, and a powder spreading mechanism includes a powder spreading hopper 41 provided on the support frame 4, zirconium powder is placed in the powder spreading hopper 41, a discharge port is provided at the lower end of the powder spreading hopper 41, and an opening and closing plate 42 for opening and closing the discharge port is slidably provided at the lower end of the powder spreading hopper 41, and a stirring shaft 5 is rotatably connected inside the powder spreading hopper 41, and a plurality of stirring rods 51 are circumferentially provided with the stirring shaft 5 for stirring the zirconium powder in the powder spreading hopper 41; the stirring shaft 5 rotates inside the powder spreading hopper 41, thereby driving the stirring rods 51 to rotate, and then stirring the zirconium powder in the powder spreading hopper 41, thereby improving the fluidity of the zirconium powder, and the zirconium powder can flow out smoothly when the opening and closing plate 42 is opened later.

[0040] Reference Figure 2 and Figure 3 A rack 61 is vertically provided on one side of the length direction of the horizontal plate 331, and the rack 61 is meshed with the gear 6. As the horizontal plate 331 moves, the rack 61 is driven to move, and the gear 6 rotates, which drives the bevel gear 62 to rotate, and then drives the bevel gear 63 to rotate, and then drives the gear 64 to rotate, and then drives the rack 65 to rotate, and then drives the opening and closing plate 42 to move, exposing the discharge port. As the horizontal plate 331 moves, the opening and closing plate 42 can be driven to move, and it is more convenient to drive the opening and closing plate 42.

[0041] Reference Figure 2 and Figure 3 A bulk plate 7 is provided on one side of the vertical plate 332 away from the blocking block 333. The bulk plate 7 is inclined, and one end of the bulk plate 7 away from the vertical plate 332 is located at the lowest point. The zirconium powder in the powder hopper 41 falls from the discharge port, falls to the bulk plate 7 due to gravity, and then rolls along the inclined angle of the bulk plate 7.

[0042] Reference Figure 2 and Figure 3 Two cylinders 2 32 are horizontally arranged in the driving frame 3, and the piston rods of the two cylinders 2 32 are fixedly connected to the push plate 31. A synchronizer is connected between the two cylinders 2 32. By operating the piston rod of the cylinder 2 32 to extend, the push plate 31 is driven to move, and then a row of magnetic cores are driven to move toward the sintering plate 2; in the process of the movement of a row of magnetic cores, the zirconium powder rolled down from the bulk plate 7 continues to fall due to gravity and falls on the magnetic core below. The zirconium powder is scattered more evenly, and more zirconium powder falls on the magnetic core, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0043] Reference Figure 2 and Figure 3As the push plate 31 pushes a row of magnetic cores onto the sintering plate 2 and then pushes the row of magnetic cores to a specified position, the piston rod of the second cylinder 32 can be operated to retract, driving the push plate 31 to return to the initial position.

[0044] Reference Figure 2 and Figure 3 A powder sprinkling tank 8 is provided at the upper end of the push plate 31, and a plurality of powder spraying heads 81 for spraying zirconium powder onto the magnetic core are provided at equal intervals at the lower end of the powder sprinkling tank 8; the plurality of powder spraying heads 81 are all located obliquely above the row of magnetic cores. At this time, the powder spraying heads 81 are operated to spray zirconium powder onto the side of the magnetic core in contact with the push plate 31, thereby further increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0045] Reference Figure 2 and Figure 3 The powder spraying head 81 can spray the zirconium powder in the powder spraying tank 8 onto the magnetic core. This is a prior art and will not be described in detail herein.

[0046] Reference Figure 2 and Figure 3 , operate cylinder 1 34 and cylinder 2 32 to restore to the initial position, then sprinkle powder and push the next row of magnetic cores. When the row of magnetic cores contacts the side wall of the previous row of magnetic cores, it will contact the zirconium powder on the side wall of the previous row of magnetic cores, and part of the zirconium powder will stick to the side wall of the row of magnetic cores, thereby increasing the amount of zirconium powder covering the outer surface of the row of magnetic cores, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0047] The working principle of a magnetic core arrangement machine and an arrangement method according to an embodiment of the present application is as follows: in the initial state, the piston rods of the operating cylinder 2 32 and the operating cylinder 1 34 are both in a retracted state, and then the feeding conveyor belt 1 is operated to open, thereby driving the magnetic cores to move to the blocking block 333, and the blocking block 333 limits the magnetic cores. A number of magnetic cores are neatly arranged between the pushing plate 31 and the vertical plate 332. As the number of magnetic cores reaches a certain number, the feeding conveyor belt 1 is operated to close, and at this time, the blocking plate 33 is operated to move up, and then the piston rod of the operating cylinder 2 32 is extended, and the pushing plate 31 drives a row of magnetic cores to move onto the sintering plate 2. As rack 1 61 moves to the position of gear 1 6 and meshes with gear 1 6, gear 1 6 is driven to rotate, which in turn drives bevel gear 1 62 to rotate, which in turn drives bevel gear 2 63 to rotate, which in turn drives gear 2 64 to rotate, which in turn drives rack 2 65 to rotate, and then drives the opening and closing plate 42 to slide. At this time, the zirconium powder falls from the powder hopper 41 due to gravity, and after contacting the bulk plate 7, it falls in the direction of a row of moving magnetic cores, thereby increasing the amount of zirconium powder covering the outer surface of the magnetic cores; after moving the row of magnetic cores to the specified position on the sintering plate 2, during the process of operating the push plate 31 to retract, the powder spraying head 81 is operated to spray zirconium powder, and the zirconium powder is sprayed on the side of the magnetic core in contact with the push plate 31, thereby further increasing the amount of zirconium powder covering the outer surface of the magnetic core, thereby reducing the occurrence of magnetic core adhesion during the subsequent sintering process.

[0048] In a second aspect, an embodiment of the present application discloses a blank arrangement method.

[0049] A blank arrangement method comprises the following steps:

[0050] S1: Turn on the feeding conveyor belt 1 to drive a number of magnetic cores to move toward the push plate 31;

[0051] S2: Close the feeding conveyor belt 1, operate the blocking plate 33 to slide above the driving frame 3, operate the pushing plate 31 to push out, and push the magnetic core onto the sintering plate 2;

[0052] S3: operating the powder spreading mechanism to spread zirconium powder onto the outer surfaces of the pushed magnetic cores;

[0053] S4: operating the push plate 31 to restore, and operating the powder spraying head 81 to spray out zirconium powder.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic core blanking machine, comprising a feeding conveyor belt (1) for conveying magnetic cores, characterized in that: A sintering plate (2) is provided on one side of the feeding conveyor belt (1) in the length direction, and the sintering plate (2) and the feeding conveyor belt (1) are located at the same height. A driving assembly is provided on the side of the feeding conveyor belt (1) away from the sintering plate (2), and the driving assembly comprises a driving frame (3), a pushing plate (31) is slidably connected to the driving frame (3) for pushing the magnetic core, and a blocking plate (33) is slidably connected to the driving frame (3) for blocking the magnetic core. A powder sprinkling mechanism for sprinkling powder onto the magnetic core is also provided on the feeding conveyor belt (1), and the pushing plate (31) is horizontally slidably connected to the driving frame (3). The baffle plate (33) can slide to the upper end surface of the sintering plate (2), and the baffle plate (33) is vertically slidably connected to the driving frame (3). The baffle plate (33) includes a horizontal plate (331) and a vertical plate (332). The horizontal plate (331) is located at the upper end of the vertical plate (332). The horizontal plate (331) and the vertical plate (332) are arranged perpendicular to each other. The horizontal plate (331) and the vertical plate (332) are fixedly connected on one side in the length direction. A baffle block (333) is arranged at one end in the length direction of the baffle plate (33). The baffle block (333) is fixedly connected to the vertical plate (332). The baffle block (333) is located near the driving frame (3). A cylinder (34) is vertically arranged in the driving frame (3), a clearance opening is provided at the upper end of the driving frame (3), a piston rod of the cylinder (34) is fixedly connected to the horizontal plate (331), a support frame (4) is provided on the side of the feeding conveyor (1) close to the sintering plate (2), a powder spreading mechanism comprises a powder spreading hopper (41) arranged on the support frame (4), zirconium powder is placed in the powder spreading hopper (41), a discharge opening is provided at the lower end of the powder spreading hopper (41), an opening and closing plate (42) for opening and closing the discharge opening is slidably provided at the lower end of the powder spreading hopper (41), a support plate is provided on one side of the feeding conveyor (1), and the support plate is The upper end is rotatably connected to a gear 1 (6); a rack 1 (61) is vertically provided on one side of the length direction of the horizontal plate (331); the rack 1 (61) and the gear 1 (6) are meshed with each other; the gear 1 (6) is coaxially fixedly connected to a bevel gear 1 (62); a bevel gear 2 (63) is also rotatably connected to the support frame (4); the bevel gear 2 (63) and the bevel gear 1 (62) are meshed with each other; a gear 2 (64) is coaxially fixedly connected to the side of the bevel gear 2 (63) away from the bevel gear 1 (62); a rack 2 (65) is provided on the opening and closing plate (42); the rack 2 (65) and the gear 2 (64) are meshed with each other.

2. A magnetic core blanking machine according to claim 1, characterized in that: The powder hopper (41) is rotatably connected to a stirring shaft (5), and a plurality of stirring rods (51) are arranged around the stirring shaft (5) for stirring the zirconium powder in the powder hopper (41).

3. A magnetic core blanking machine according to claim 1, characterized in that: A bulk material plate (7) is arranged on one side of the vertical plate (332) away from the material blocking block (333). The bulk material plate (7) is arranged obliquely, and one end of the bulk material plate (7) away from the vertical plate (332) is located at the lowest point.

4. The magnetic core blanking machine according to claim 1, characterized in that: A powder spraying tank (8) is arranged at the upper end of the push plate (31), and a plurality of powder spraying heads (82) for spraying zirconium powder onto the magnetic core are arranged at equal intervals at the lower end of the powder spraying tank (8).

5. A blank arrangement method, characterized in that: Arranging magnetic cores using the magnetic core arrangement machine described in claim 4 comprises the following steps: S1: Turn on the feeding conveyor belt (1) to drive a number of magnetic cores to move toward the push plate (31); S2: closing the feeding conveyor belt (1), operating the blocking plate (33) to slide upwardly toward the driving frame (3), operating the pushing plate (31) to push out, and pushing the magnetic core onto the sintering plate (2); S3: operating the powder spreading mechanism to spread zirconium powder onto the outer surfaces of the pushed magnetic cores; S4: operating the push plate (31) to restore, and operating the powder spraying head (82) to spray out zirconium powder.

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