An automatic feeding, cutting and separating mechanism for bonded magnetic cores

Abstract

A kind of automatic feeding cutting and separating mechanism of sticking magnetic core, including rack, the feeding mechanism, conveying mechanism, cutting and discharging mechanism are installed on the rack;The feeding mechanism is conveyed to cutting and discharging mechanism by conveying mechanism with sticking magnetic core workpiece, the screening mechanism that posture unqualified magnetic core is screened back to feeding mechanism is equipped on the conveying mechanism, the feeding mechanism includes hopper, hopper separation mechanism, pallet feeding mechanism, the hopper separation mechanism is equipped in the lower portion of hopper and can act after hopper is separated into multiple chambers to prevent magnetic core from being accumulated in the end portion of hopper, the pallet feeding mechanism is equipped in the end portion of hopper, the pallet feeding mechanism includes multiple fixed pallets arranged in stages, first stage fixed pallet is connected with the end portion of hopper, last stage fixed pallet is connected with conveying mechanism;Upper and lower pallets for conveying magnetic core from previous stage fixed pallet to later stage fixed pallet are arranged between adjacent fixed pallets, and multiple upper and lower pallets are synchronously arranged.

Description

Technical Field

[0001] This invention relates to the field of magnetic core separation technology, and in particular to an automatic feeding, cutting and separating mechanism for adhered magnetic cores. Background Technology

[0002] In the manufacturing process of magnetic material components, the magnetic core, as a key component, plays a decisive role in the quality and performance of the entire component. In actual production, the fabrication of magnetic cores involves a series of complex processes such as powder preparation, pressing, and sintering. However, after the sintering process, some magnetic cores may adhere together. For example... Figure 1 As shown, there are many specifications for magnetic cores, such as thickness 3-20mm, diameter 8-26mm, and ring thickness 4-15mm. During the feeding process, due to vibration and mutual compression between the magnetic core workpieces, magnetic core workpieces of the same specification may stick together in different lengths, such as two sticking together, three sticking together, etc. If these sticking magnetic cores are not effectively separated, they will not meet the needs of subsequent production processing and product use.

[0003] Currently, the separation of adhered magnetic cores mainly relies on manual operation. Specifically, workers need to use blades to mechanically separate them along the adhesion gaps. This method has many drawbacks: First, manual operation is extremely inefficient, making it difficult to meet the speed requirements of large-scale industrial production and severely restricting production progress; second, the accuracy of manual separation is difficult to guarantee. Due to differences in the skill level and operating conditions of the workers, deviations in the size and shape of the separated magnetic cores are easily caused, affecting the consistency of product quality; third, long-term engagement in this repetitive and high-intensity manual labor will cause significant strain on the workers' bodies, especially their hands, which is detrimental to their occupational health; fourth, labor costs continue to rise over time, which undoubtedly increases the company's production costs and reduces its competitiveness in the market.

[0004] Existing mechanical cutting and separation methods typically involve setting up a simple work platform. Operators place the adhered magnetic core on the platform, then, using a blade and their experience and skill, locate the adhesion gaps and forcefully separate the core. Some slightly more advanced operations use simple clamps to hold the adhered core in place, preventing it from wobbling during separation and improving operational stability to some extent. However, overall, this still relies heavily on manual labor and fails to effectively solve problems such as low efficiency, poor precision, high cost, and worker fatigue. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes an automatic feeding, cutting and separating mechanism for adhered magnetic cores. It can be compatible with the feeding of multiple types of magnetic core workpieces and magnetic cores of different lengths. It can operate 24 hours a day, thereby effectively improving efficiency, increasing production capacity, reducing labor costs, achieving cost reduction and efficiency improvement, and improving separation yield, which helps enterprises save costs.

[0006] The technical solution adopted in this invention is:

[0007] An automatic feeding, cutting, and separating mechanism for adhered magnetic cores includes a frame on which a feeding mechanism, a conveying mechanism, and a cutting and unloading mechanism are mounted. The feeding mechanism conveys the adhered magnetic core workpieces to the cutting and unloading mechanism via the conveying mechanism. The conveying mechanism is equipped with a screening mechanism to return magnetic cores with unqualified postures to the feeding mechanism. The feeding mechanism includes a hopper, a hopper partitioning mechanism, and a pallet feeding mechanism. The hopper partitioning mechanism is located below the hopper and can be activated to divide the hopper into multiple compartments to prevent magnetic cores from accumulating at the end of the hopper. The pallet feeding mechanism is located at the end of the hopper and includes multiple stages of rising fixed pallets. The first stage fixed pallet is connected to the end of the hopper, and the last stage fixed pallet is connected to the conveying mechanism. Between adjacent fixed pallets, upper and lower pallets are provided to convey magnetic cores from the previous stage fixed pallet to the next stage fixed pallet. The multiple upper and lower pallets are configured to operate synchronously.

[0008] Furthermore, the hopper is formed by the hopper bending plate and the hopper support plate. The hopper bending plate has an inclined feeding plate. The feeding plate is provided with a number of through slots for the hopper separating mechanism to extend out and separate the hopper. The side of the hopper support plate is provided with a position sensor that identifies the stacking height of the magnetic core at the end of the hopper and transmits an action signal to the hopper separating mechanism.

[0009] Furthermore, the hopper partitioning mechanism includes partition plates that are vertically movable and can be arranged one-to-one with the through slots. The partition plates are connected to a first cylinder that drives them to move up and down. The first cylinder is connected to a solenoid valve that controls its movement. The solenoid valve can receive movement signals transmitted by a position sensor.

[0010] Furthermore, both the upper and lower support plates are connected to the second cylinder that drives them to rise and fall, so as to realize the magnetic core being transported to the top layer by layer.

[0011] Furthermore, the conveying mechanism includes a first guide trough and a second guide trough. The first guide trough is connected to the last stage fixed support plate to receive materials. A first screening fixture is provided between the first guide trough and the second guide trough. The cutting and unloading mechanism is installed at the output end of the second guide trough. A first vibrator is installed below the first guide trough to drive its vibration and material conveying. A second vibrator is installed below the second guide trough to drive its vibration and material conveying.

[0012] Furthermore, a trough width adjustment plate is provided on one side of the second guide trough to adjust its width.

[0013] Furthermore, a cutting permission sensor is installed on the second guide groove. When the cutting permission sensor detects that the length of the magnetic core in the second guide groove has reached the specified position, it outputs an action signal to the cutting and unloading mechanism to ensure that the cutting and unloading mechanism can cut accurately.

[0014] Furthermore, the screening mechanism includes a first screening fixture disposed between the first guide chute and the second guide chute. An AI camera for recognizing the magnetic core posture is disposed above the first screening fixture. An air nozzle for blowing out magnetic cores with incorrect postures from the conveying mechanism is disposed on the rear side of the first screening fixture. A discharge chute is disposed below the first screening fixture, and the outlet of the discharge chute is disposed above the hopper.

[0015] Furthermore, a second screening fixture capable of screening out individual magnetic cores is provided in the middle of the feeding trough, and a single-core feeding trough is provided at the outlet of the second screening fixture, and a single-core feeding box is provided at the outlet of the single-core feeding trough.

[0016] Furthermore, the cutting and unloading mechanism includes a cutting plate base, on which a material discharge port is provided, and below the material discharge port is a receiving box; a magnetic core cutting channel is provided between the material discharge port and the output end of the second guide groove, a cutting guide seat is installed on one side of the magnetic core cutting channel, and a clamping block that can move forward to press the second magnetic core and a blade that can move forward to cut the gap between the first and second magnetic cores are installed on the other side, the clamping block and the blade move synchronously and are both connected to a motor that drives their movement; a blocking plate is installed on the cutting plate base, which can block the first magnetic core before cutting and move backward to release the magnetic core during cutting, the blocking plate is installed on a blocking adjustment block, and the blocking adjustment block is installed in an adjustable position on a blocking moving seat; a blocking lever block that can drive the blocking moving seat to move backward and a spring that drives the blocking moving seat to move forward to block are installed on the cutting plate base, the blocking lever block and the blade are linked.

[0017] The beneficial effects of this invention are:

[0018] 1. This invention is an automatic cutting of magnetic cores with a production cycle of 0.5 seconds per core, which is 3 times more efficient than manual cutting of 1.5 seconds per core. The separation yield is stable at 98%, which greatly improves the consistency of individual magnetic core workpieces.

[0019] 2. The present invention uses a pallet feeding mechanism and a screening mechanism that can be compatible with feeding multiple types of magnetic core workpieces. It can also feed single magnetic core workpieces that are bonded together in different length groups.

[0020] 3. The present invention provides a silo partitioning mechanism at the silo, which can divide the silo into three parts: front end, middle section and rear end, thereby reducing the pressure at the front end and preventing excessive material accumulation at the front end from causing the pallet feeding mechanism to jam.

[0021] 4. This invention has multiple screening functions, which allows magnetic cores with unqualified postures to be re-entered into the hopper for feeding. Individual magnetic cores are collected directly during their fall, resulting in high efficiency and a high degree of automation.

[0022] 5. The cutting and feeding mechanism of the present invention is a linkage process. While the clamping block is clamping, the blade is cutting. At the same time as the blade is cutting, the blocking plate moves backward. The clamping block, blade, and blocking plate are controlled by the same motor to move in linkage. There is no cumulative error, low cost, compact structure, and high reliability, thereby improving the cutting yield. The clamping block, blade, and blocking plate move repeatedly, which can realize continuous cutting and high efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the bonded magnetic core workpieces of different lengths and sizes according to the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the feeding mechanism of the present invention.

[0026] Figure 4 This is a schematic diagram of the feeding mechanism of the present invention during the feeding process.

[0027] Figure 5 This is a schematic diagram of the hopper structure of the present invention.

[0028] Figure 6 This is a schematic diagram of the silo separation mechanism of the present invention.

[0029] Figure 7 This is a schematic diagram of the silo separation mechanism of the present invention during separation.

[0030] Figure 8 This is a schematic diagram of the pallet loading mechanism of the present invention.

[0031] Figure 9 This is a schematic diagram of the conveying mechanism of the present invention.

[0032] Figure 10 This is a schematic diagram of the setup structure of the screening mechanism of the present invention.

[0033] Figure 11 This is an enlarged structural diagram of a portion of the screening mechanism of the present invention.

[0034] Figure 12This is a schematic diagram of the cutting and feeding mechanism of the present invention. Figure 1 .

[0035] Figure 13 This is a schematic diagram of the cutting and feeding mechanism of the present invention. Figure 2 .

[0036] Figure 14 This is a schematic diagram of the cutting and unloading mechanism of the present invention.

[0037] In the diagram: 1. Frame; 2. Feeding mechanism; 21. Hopper; 211. Hopper support plate; 212. Position sensor; 213. Hopper bending plate; 214. Discharge plate; 215. Through slot; 22. Hopper partitioning mechanism; 221. Solenoid valve; 222. Adjusting bolt; 223. First slider guide rail; 224. Dividing plate; 225. First cylinder; 23. Pallet feeding mechanism; 231. Fixed pallet; 232. First-stage fixed pallet; 233. Last 1. Primary fixed support plate; 2.2. Upper and lower support plates; 2.3. Second slider guide rail; 2.3. Second cylinder; 3. Conveying mechanism; 3.1. First guide chute; 3.2. Second guide chute; 3.3. First vertical vibrator; 3.4. First vertical vibrator base; 3.5. Second vertical vibrator; 3.6. Second vertical vibrator base; 3.7. Chute width adjustment plate; 3.8. Cutting allowance sensor; 4. Screening mechanism; 4.1. First screening fixture; 4.2. AI camera; 4.3. Air nozzle; 4. Feed chute; 45. Second screening fixture; 46. Single feed chute; 47. Single material box; 48. Feed buffer curtain; 5. Cutting and feeding mechanism; 51. Blocking spring seat; 52. Spring; 53. Differential head; 54. Blocking moving seat; 55. Feeding side guide block; 56. Blocking adjusting block; 57. Feeding port; 58. Blocking plate; 59. Cutting guide seat; 60. Blade; 61. Clamping block; 62. Clamping block mounting seat; 63. Blocking lever block; 64. Cutter head mounting base; 65. Pressure block adjusting rod; 66. Pressure block moving base; 67. Pressure block spring; 68. Blocking power transmission base; 69. Motor; 70. Pressure block connecting rod; 71. Support plate; 72. Cam mounting base; 73. Pressure block cam; 74. Ball joint rod end bearing; 75. Cutter head cam; 76. Cutter head connecting rod; 77. Cutting plate base; 78. Shock-absorbing buffer pad; 79. Magnetic core cutting channel; 80. Material receiving box; 81. Cutter head moving base. Detailed Implementation

[0038] The present invention will be further described below with reference to specific embodiments, but the invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements, and equivalents that may be included within the scope of the claims.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Reference Figure 2 This embodiment provides an automatic feeding, cutting and separating mechanism for adhered magnetic cores, including a frame 1. The frame 1 is equipped with a feeding mechanism 2, a conveying mechanism 3, and a cutting and unloading mechanism 5. The feeding mechanism 2 conveys the adhered magnetic core workpieces to the cutting and unloading mechanism 5 via the conveying mechanism 3. The conveying mechanism 3 is provided with a screening mechanism 4 for screening magnetic cores with unqualified postures back to the feeding mechanism 2.

[0043] See Figure 3 , Figure 4The feeding mechanism 2 described in this embodiment includes a hopper 21, a hopper partitioning mechanism 22, and a pallet feeding mechanism 23. The hopper partitioning mechanism 22 is located below the hopper 21 and can divide the hopper 21 into multiple compartments after operation to prevent the magnetic core from accumulating at the end of the hopper 21. The pallet feeding mechanism 23 is located at the end of the hopper 21.

[0044] See Figure 5 In this embodiment, the hopper 21 is formed by a hopper bending plate 213 and a hopper support plate 211. The hopper bending plate 213 has an inclined feeding plate 214, which is provided with several through slots 215 for the hopper separating mechanism 22 to extend out and separate the hopper 21. The side of the hopper support plate 211 is provided with a position sensor 212 that identifies the stacking height of the magnetic cores at the end of the hopper 21 and transmits an action signal to the hopper separating mechanism 22. In this embodiment, the inclination angle of the feeding plate 214 is 10°. When the magnetic cores are poured into the hopper 21 from the box, the magnetic cores move along the inclination angle to the end of the hopper 21. If the magnetic cores exceed the bottom of the hopper 21 by a certain height at the end, the position sensor 212 identifies the magnetic cores and transmits an action signal to the hopper separating mechanism 22. Of course, the conveying mechanism 3 on the frame 1 is a vibratory conveyor, which will cause the hopper 21 to resonate during feeding.

[0045] See Figure 6 , Figure 7 In this embodiment, the hopper partitioning mechanism 22 includes partition plates 224 that are vertically movable and correspond one-to-one with the through slots 215. Each partition plate 224 is connected to a first cylinder 225 that drives its vertical movement. The first cylinder 225 is connected to a solenoid valve 221 that controls its operation. The solenoid valve 221 receives an action signal transmitted by a position sensor 212. Specifically, the first cylinder 225 is height-adjustable and installed within the frame 1. The installation height of the first cylinder 225 is adjusted by adjusting the adjusting bolts 222. In this embodiment, two partition plates 224 and two through slots 215 are provided. Each partition plate 224 is connected to the first cylinder 225 via a first slider guide rail 223. The slider of the first slider guide rail 223 is longitudinally movable and connected to the frame 1. When the position sensor 212 gives a signal, the solenoid valve 221 receives the signal and controls the first cylinder 225 to extend and retract. The first slider guide rail 223 moves up and down with the dividing plate 224. After the dividing plate 224 extends out of the through groove 215, its height exceeds the bottom of the hopper 21, thereby dividing the hopper 21 into three parts: the front end, the middle section and the rear end. This reduces the end pressure and prevents the magnetic core from accumulating too much at the end, causing the pallet feeding mechanism 23 to jam.

[0046] See Figure 8The pallet feeding mechanism 23 described in this embodiment includes a multi-stage upward-moving fixed pallet 231. The first-stage fixed pallet 232 is connected to the end of the hopper 21, and the last-stage fixed pallet 233 is connected to the conveying mechanism 3. Adjacent fixed pallets 231 are each provided with an upper and lower pallet 234 to transport the magnetic core from the previous fixed pallet to the next fixed pallet. These upper and lower pallets 234 are synchronously operated. Each upper and lower pallet 234 is connected to a second cylinder 236 that drives its lifting and lowering, enabling the magnetic core to be transported layer by layer to the top. Specifically, each upper and lower pallet 234 is connected to the second cylinder 236 via a second slider guide rail 235, and the slider of the second slider guide rail 235 is longitudinally movable and connected to the frame 1. The top surfaces of the fixed support plate 231 and the upper and lower support plates 234 are inclined at the same slope from front to back. When the upper and lower support plates 234 are connected to the front fixed support plate, they receive the magnetic cores on the front fixed support plate. When the upper and lower support plates 234 are connected to the rear fixed support plate, they send the magnetic cores to the rear fixed support plate. Through the reciprocating movement of the second cylinder 236, multiple upper and lower support plates 234 move synchronously to transport the magnetic cores on the front fixed support plate to the rear fixed support plate, transporting them layer by layer to the top. After receiving the magnetic cores, the last fixed support plate 233 slides directly to the conveying mechanism 3.

[0047] See Figure 9The conveying mechanism 3 described in this embodiment includes a first guide trough 31 and a second guide trough 32. The first guide trough 31 is connected to the last stage fixed support plate to receive materials. A first screening fixture 41 is provided between the first guide trough 31 and the second guide trough 32. The cutting and unloading mechanism 5 is installed at the output end of the second guide trough 32. A first vibrator 33 is installed below the first guide trough 31 to drive its vibration and conveying of materials. The first vibrator 33 is mounted on the frame 1 through a first vibrator base 34. A second vibrator 35 is installed below the second guide trough 32 to drive its vibration and conveying of materials. The second vibrator 35 is mounted on the frame 1 through a second vibrator base 36. A trough width adjustment plate 37 is provided on one side of the second guide trough 32 to adjust its width. That is, the width of the second guide trough 32 can be adjusted by the width of the magnetic core, so that the second guide trough 32 can only bond workpieces through a single magnetic core of the same size. A cutting permission sensor 38 is installed on the second guide trough 32. When the cutting permission sensor 38 detects that the length of the magnetic core in the second guide trough 32 has reached the specified position, it outputs an action signal to the cutting and unloading mechanism 5, so that the magnetic core to be cut has sufficient pressure to reach the cutting position for cutting, ensuring that the cutting and unloading mechanism 5 can cut accurately. The magnetic core is conveyed to the first guide trough 31 by the pallet loading mechanism 23. The first vibrator 33 conveys the magnetic core to the first screening fixture 41. The first screening fixture 41 divides the magnetic core workpiece into two parts. The OK magnetic core workpiece is conveyed to the second guide trough 32 along the first screening fixture, and the NG magnetic core workpiece will fall directly. The OK magnetic core workpiece is conveyed to the cutting and unloading mechanism 5 by the second vibrator 35.

[0048] See Figure 10 , Figure 11The screening mechanism 4 described in this embodiment includes a first screening fixture 41 disposed between the first guide trough 31 and the second guide trough 32. The first screening fixture 41 in this embodiment is a conveying channel formed by two parallel rods. The distance between the two rods can be adjusted according to the size of the magnetic core. The conveying channel can just pass through magnetic core workpieces with acceptable posture, while unacceptable ones fall directly. An AI camera 42 for recognizing the posture of the magnetic core is disposed above the first screening fixture 41. An air nozzle 43 for blowing out magnetic cores with unacceptable posture from the conveying mechanism 3 is disposed on the rear side of the first screening fixture 41. A dropping trough 44 is disposed below the first screening fixture 41, and the outlet of the dropping trough 44 is located above the hopper 21. A second screening fixture 45 capable of screening out single magnetic cores is disposed in the middle of the dropping trough 44. A single-core dropping trough 46 is disposed at the outlet of the second screening fixture 45, and a single-core material box 47 is disposed at the outlet of the single-core dropping trough 46. Specifically, the second screening fixture 45 can be multiple slots with the same size as a single magnetic core. The single magnetic core falls from the slot into the single material drop trough 46 and then slides down into the single material box 47. The outlet of the single material drop trough 46 is also provided with a material drop buffer curtain 48. The magnetic core workpieces are conveyed to the first screening fixture 41 via the first guide chute 31. Some magnetic core workpieces with unqualified postures are screened out and fall onto the discharge chute 44. As some magnetic core workpieces pass through the first screening fixture 41, the AI ​​camera 42 above takes a picture to identify the posture of the magnetic core workpieces. OK magnetic core products are conveyed to the second guide chute 32, while NG magnetic core products are blown off onto the discharge chute 44 by the air nozzle 43. In the middle of the discharge chute 44, there is a second screening fixture 45. Single magnetic core workpieces fall into the single discharge chute 46 below. After being buffered by the discharge buffer curtain 48, they are finally collected in the single material box 47. Non-single magnetic core workpieces fall back into the hopper 21 and are screened and fed again by the pallet loading mechanism 23 and the conveying mechanism 3 until they are conveyed to the cutting and unloading mechanism 5 with an OK posture. In this embodiment, qualified posture means that the magnetic core workpiece is conveyed to the cutting and unloading mechanism 5 along its axial direction.

[0049] See Figures 12-14The cutting and unloading mechanism 5 described in this embodiment includes a cutting plate base 77, and a shock-absorbing buffer pad 78 is provided between the cutting plate base 77 and the frame 1; a material discharge port 57 is provided on the cutting plate base 77, and a material receiving box 80 is provided below the material discharge port 57; a magnetic core cutting channel 79 is provided between the material discharge port 57 and the output end of the second guide groove 32, and a cutting guide seat 59 is installed on one side of the magnetic core cutting channel 79, and a clamping block 61 that can move forward to clamp the second magnetic core and a blade 60 that can move forward to cut the gap between the first and second magnetic cores are installed on the other side. The clamping block 61 and the blade 60 operate synchronously and are both connected to the motor 69 that drives their operation. A blocking plate 58 is installed on the cutting plate base 77 to block the first magnetic core before cutting and to release the core during cutting. The blocking plate 58 is mounted on a blocking adjustment block 56, which is adjustablely mounted on a blocking moving seat 54. A blocking lever block 63 that drives the blocking moving seat 54 backward and a spring 52 that drives the blocking moving seat 54 forward are installed on the cutting plate base 77. The blocking lever block 63 and the blade 60 are linked. Specifically, one end of the spring 52 is connected to a blocking spring seat 51, and the other end is connected to the blocking moving seat 54. The blocking spring seat 51 is fixed to the cutting plate base 77. A micrometer head 53 is connected to the blocking adjustment block 56 to precisely adjust its position, i.e., the distance between the blocking plate 58 and the extended blade 60 is adjusted by the micrometer head 53 to accommodate the cutting of magnetic cores of different sizes.A material discharge side guide block 55 is provided on one side of the material discharge port 57, extending above the receiving box 80 to guide the material discharge; the clamping block 61 is connected to a clamping block mounting base 62 that can move it, and the clamping block mounting base 62 is connected to a clamping block moving base 66 via a clamping block adjusting rod 65. The clamping block adjusting rod 65 can adjust the installation position of the clamping block 61 relative to the clamping block moving base 66, thereby adapting to magnetic cores of different sizes; the clamping block moving base 66 is connected to a clamping block cam 73 via a clamping block connecting rod 70, and the clamping block cam 73 is mounted on the cutting plate base 77 via a cam mounting base 72 and connected to a motor 69 that drives its rotation; the blade 60 is connected to a blade head mounting base 64 that can move it, and the blade head mounting base 64 is connected to a blade head moving base 86 via a blade head moving base 86. 1. Connected to the cutter head connecting rod 76, the cutter head mounting seat 64 is adjusted relative to the cutter head moving seat 81. The cutter head connecting rod 76 is hinged to the cutter head cam 75 through a ball joint bearing 74. The cutter head cam 75 is mounted on the pressure block cam 73 and connected to the motor 69 that drives it to rotate. The cutter head moving seat 81 is connected to the blocking lever block 63 through the blocking power transmission seat 68, driving the blocking lever block to move together. The middle part of the blocking lever block 63 is rotatably connected to the cutting plate base 77. Both the pressure block moving seat 66 and the cutter head moving seat 81 are movably connected to the support plate 71 relative to the support plate 71. That is, the support plate 71 is provided with corresponding pressure block guide rails and cutter head guide rails. A pressure block spring 67 is also provided between the support plate 71 and the pressure block moving seat 66. The magnetic core workpiece is conveyed to the cutting guide seat 59 via the conveying mechanism 3. When the magnetic core workpiece accumulates to a certain length on the conveying mechanism 3, the cutting permission sensor 38 outputs a motor start signal. The motor 69 drives the pressure block cam 73 and the cutter head cam 75 to start rotating. The clamping block 61 moves forward and presses down on the second magnetic core workpiece. The front end of the first magnetic core workpiece contacts the blocking plate 58. The blade 60 moves forward and cuts the gap between the first and second magnetic core workpieces. When the cut is halfway done, the blocking lever block 63 drives the blocking plate 58 to move backward. The front end of the first magnetic core workpiece is unobstructed. When the blade 60 finishes cutting, the first magnetic core workpiece moves forward due to the cutting action of the blade and falls into the receiving box 80 below. The motor 69 then rotates, driving the clamping block 61 and the blade 60 to move backward. At the same time, the blocking lever block 63 separates from the blocking moving seat 54, and the blocking plate 58 returns to its initial position under the action of the spring 52. The conveying mechanism 3 conveys the magnetic core workpiece forward, and the second magnetic core workpiece moves to the position of the first one. The clamping block 61, the blade 60, and the blocking plate 58 repeat the first operation to achieve continuous cutting.

[0050] In operation, the magnetic core workpiece is placed in the hopper 21 and conveyed from the front end to the conveying mechanism 3 via the pallet loading mechanism 23. After passing through the first guide chute 31, the magnetic core workpiece is screened by the screening mechanism 4. Only magnetic core workpieces with suitable magnetic ring postures are allowed to pass through the second guide chute 32 into the cutting and unloading mechanism 5. When the magnetic core workpiece passes through the screening mechanism 4, its posture is screened by the AI ​​camera 42 and the first screening fixture 41. If the posture does not meet the loading requirements, the magnetic core workpiece will be blown off by the air nozzle and guided by the bottom drop chute 44. Some magnetic core workpieces that do not meet the loading requirements will fall into the single material box 47 through the screening fixture on the drop chute 44, and the other part will fall back into the hopper 21 through the drop chute 44. The magnetic rings with suitable postures are conveyed to the cutting and unloading mechanism 5 via the conveying mechanism 3. The cutting and unloading mechanism 5 cuts the magnetic core workpiece into individual pieces, and then the individual magnetic core workpieces fall into the receiving box 80 below.

[0051] This invention is an automated magnetic core cutting system with a production cycle of 0.5 seconds per core, a 3-fold increase in efficiency compared to the 1.5 seconds per core produced manually, while maintaining a stable separation yield of 98%, significantly improving the consistency of individual magnetic core workpieces. The invention utilizes a pallet loading and screening mechanism, compatible with multiple types of magnetic core workpieces, and can even load individual magnetic core workpieces bonded together in different length groups. The invention features a hopper partitioning mechanism that divides the hopper into front, middle, and rear sections, thereby reducing pressure at the front end and preventing excessive material accumulation that could cause jamming on the pallet loading mechanism. The invention incorporates multiple screening processes, allowing magnetic cores with unsuitable postures to re-enter the hopper for loading. Individual magnetic cores are collected directly during their descent, resulting in high efficiency and a high degree of automation. The cutting and feeding mechanism of this invention is a linkage process. While the clamping block is clamping, the blade is cutting. At the same time as the blade is cutting, the blocking plate moves backward. The clamping block, blade, and blocking plate are controlled by the same motor to move in linkage. There is no cumulative error, low cost, compact structure, and high reliability, thereby improving the cutting yield. The clamping block, blade, and blocking plate move repeatedly, which can realize continuous cutting and high efficiency.

Claims

1. An automatic feeding, cutting, and separating mechanism for adhered magnetic cores, comprising a frame, wherein a feeding mechanism, a conveying mechanism, and a cutting and unloading mechanism are mounted on the frame; the feeding mechanism conveys the adhered magnetic core workpieces to the cutting and unloading mechanism via the conveying mechanism, characterized in that: The conveying mechanism is equipped with a screening mechanism to screen out magnetic cores with unqualified postures and return them to the feeding mechanism. The feeding mechanism includes a hopper, a hopper partitioning mechanism, and a pallet feeding mechanism. The hopper partitioning mechanism is located below the hopper and can be activated to divide the hopper into multiple compartments to prevent magnetic cores from accumulating at the end of the hopper. The pallet feeding mechanism is located at the end of the hopper and includes multiple stages of fixed pallets that are arranged to rise. The first stage fixed pallet is connected to the end of the hopper, and the last stage fixed pallet is connected to the conveying mechanism. Between adjacent fixed pallets, there are upper and lower pallets that transport magnetic cores from the front fixed pallet to the rear fixed pallet. The multiple upper and lower pallets are arranged to move synchronously. The hopper is formed by a hopper bending plate and a hopper support plate. The hopper bending plate has an inclined feeding plate. The feeding plate is provided with several through slots for the hopper separating mechanism to extend out and separate the hopper. The side of the hopper support plate is provided with a position sensor that identifies the stacking height of the magnetic core at the end of the hopper and transmits an action signal to the hopper separating mechanism.

2. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 1, characterized in that: The hopper partitioning mechanism includes partition plates that are vertically adjustable and can be installed one-to-one with the through slots. Each partition plate is connected to a first cylinder that drives its vertical adjustment. The first cylinder is connected to a solenoid valve that controls its operation. The solenoid valve can receive operation signals transmitted by a position sensor.

3. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 1, characterized in that: Both the upper and lower support plates are connected to the second cylinder that drives them to rise and fall.

4. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 1, characterized in that: The conveying mechanism includes a first guide trough and a second guide trough. The first guide trough is connected to the last stage fixed pallet to receive materials. A first screening fixture is provided between the first guide trough and the second guide trough. The cutting and feeding mechanism is installed at the output end of the second guide trough. A first vibrator is installed below the first guide trough to drive its vibration and feeding. A second vibrator is installed below the second guide trough to drive its vibration and feeding.

5. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 4, characterized in that: The second guide trough is provided with a trough width adjustment plate on one side to adjust its width.

6. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 4, characterized in that: A cutting permission sensor is installed on the second guide trough. When the cutting permission sensor detects that the length of the magnetic core in the second guide trough has reached a specified position, it outputs an action signal to the cutting and unloading mechanism.

7. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 4, characterized in that: The screening mechanism includes a first screening fixture disposed between a first guide chute and a second guide chute. An AI camera for recognizing the posture of magnetic cores is disposed above the first screening fixture. An air nozzle for blowing out magnetic cores with incorrect postures from the conveying mechanism is disposed on the rear side of the first screening fixture. A discharge chute is disposed below the first screening fixture, and the outlet of the discharge chute is disposed above the hopper.

8. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 7, characterized in that: The middle of the feeding trough is provided with a second screening fixture that can screen out individual magnetic cores. The outlet of the second screening fixture is provided with a single feeding trough, and the outlet of the single feeding trough is provided with a single material box.

9. The automatic feeding, cutting, and separating mechanism for adhered magnetic cores according to claim 1, characterized in that: The cutting and feeding mechanism includes a cutting plate base with a feeding port and a receiving box below it. A magnetic core cutting channel is provided between the feeding port and the output end of the second guide groove. A cutting guide seat is installed on one side of the magnetic core cutting channel, and a clamping block that can move forward to press the second magnetic core and a blade that can move forward to cut the gap between the first and second magnetic cores are installed on the other side. The clamping block and the blade move synchronously and are both connected to a motor that drives their movement. A blocking plate is installed on the cutting plate base to block the first magnetic core before cutting and to move backward to release the magnetic core during cutting. The blocking plate is installed on a blocking adjustment block, which is adjustablely mounted on a blocking moving seat. A blocking lever block that can drive the blocking moving seat to move backward and a spring that drives the blocking moving seat to move forward to block are installed on the cutting plate base. The blocking lever block and the blade are linked.

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