A rack for baking laminated common mode inductors

Abstract

The utility model relates to electronic component manufacturing process equipment field especially, a kind of placing rack for laminated common mode inductance baking, it is applied to baking tunnel, including poking lever, fixed frame is connected in baking tunnel, fixed frame is equipped with conveying belt, conveying belt is connected with several placing racks, fixed frame top is connected with guide frame, limit slot is opened in the middle of guide frame, placing rack side is connected with several fixed blocks, several recesses are opened in placing rack, poking lever both ends are slidably connected in limit slot, poking lever bottom is connected with guide rod, guide rod is slidably connected in fixed block, poking lever is slidably connected in recess, and leveling assembly for leveling common mode inductance is provided on placing rack. By the trajectory of limit slot of guide frame of poking lever is forced to drive, make poking lever along guide rod periodic lifting movement, realize inductance in moving process is jacked up and separates placing rack contact surface, destroy sintering adhesion foundation, finally reach inductance and placing rack zero stickiness.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing process equipment, and in particular to a placement rack for baking multilayer common mode inductors. Background Technology

[0002] Common-mode inductors are key components in electronic circuits for suppressing electromagnetic interference. Their multilayered structure achieves efficient filtering of high-frequency common-mode noise through the precise stacking of multiple layers of magnetic materials and coils. In the manufacturing process, baking is an essential post-processing step. Its main functions include: eliminating internal stress generated during winding or lamination, removing trace amounts of moisture adsorbed onto the magnetic core and insulating materials, and promoting the full curing of the bonding layer. This process has a decisive impact on ensuring the mechanical stability, insulation strength, and long-term reliability of the inductor.

[0003] Currently, production lines generally use automated equipment for baking: a front-end robotic arm picks up the formed stacked common-mode inductors and places them on the continuous conveyor of the baking equipment; the inductors pass through a high-temperature oven at a constant speed with the conveyor belt to complete the heat treatment; after reaching the end of the baking equipment, a rear-end robotic arm removes the baked inductors and transfers them to the next process. Throughout the entire process, the inductors are directly exposed to a high-temperature environment, and their bottom and sides maintain continuous contact with the conveyor.

[0004] Because the inductor needs to be in continuous contact with the conveyor for 10-30 minutes under high temperature, the magnetic material and organic adhesive are prone to local sintering under long-term heat, causing the bottom or sides of the inductor to stick to the conveyor belt. However, peeling off the adhesion will damage the inductor structure and reduce product yield; the residual sintered material will contaminate the contact surface of the baking equipment, requiring frequent shutdowns for cleaning, reducing production efficiency; the adhesion will cause the robot arm to deviate from its picking position, leading to picking failure or dropping, increasing the equipment failure rate. Utility Model Content

[0005] To overcome the drawbacks of adhesion and structural damage, this invention provides a placement rack for baking multilayer common mode inductors, aiming to solve the aforementioned problems.

[0006] A placement rack for baking multilayer common mode inductors, applied in a baking tunnel, includes a toggle rod, a fixed frame connected inside the baking tunnel, a conveyor belt mounted on the fixed frame, several placement racks connected to the conveyor belt, a guide frame connected to the top of the fixed frame, a limit groove in the middle of the guide frame, several fixed blocks connected to the sides of the placement racks, several grooves on the placement racks, the two ends of the toggle rod slidably connected to the limit grooves, the bottom of the toggle rod connected to a guide rod slidably connected to the fixed blocks, the toggle rod slidably connected to the grooves, and a leveling component for leveling the common mode inductors is provided on the placement rack.

[0007] Furthermore, the leveling assembly includes a connecting plate, the bottom of which is slidably connected to the placement frame, the top of which is higher than the placement frame, a torsion spring is sleeved on the bottom of the connecting plate, one end of which is connected to the placement frame and the other end of which is connected to the connecting plate, and an adjustment plate is connected to the top of the connecting plate.

[0008] Furthermore, the adjusting plate is rotatably connected to a stabilizing roller on one side facing the placement frame.

[0009] Furthermore, the bottom end of the placement rack is connected to a heat-insulating shell, the bottom end of the connecting plate is slidably connected to the heat-insulating shell, and the torsion spring is located inside the heat-insulating shell.

[0010] Furthermore, a roller is rotatably connected to the end of the actuating lever, and the roller is rolled within the limiting groove.

[0011] Furthermore, inclined grooves are provided on both sides of the groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By being driven by the guide frame limit groove trajectory, the toggle lever makes a periodic up-and-down movement along the guide rod, so that the inductor is lifted and separated from the contact surface of the placement frame during the movement, destroying the sintering adhesion base, and finally achieving zero adhesion between the inductor and the placement frame.

[0013] 2. By making rolling contact between the stabilizing roller and the side wall of the inductor, and under the constant pressure clamping of the torsion spring protected by the heat-insulating shell, the inductor is always subject to flexible constraint during the lifting and lowering process. At the same time, the stabilizing roller passively rotates with the movement of the inductor, transforming the traditional sliding friction into rolling friction, thus ensuring the integrity of the inductor structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation structure of the fixing frame and conveyor belt of this utility model.

[0016] Figure 3 This is a cross-sectional view showing the connection relationship between the fixing block and the guide rod of this utility model.

[0017] Figure 4 This is a cross-sectional view showing the connection relationship between the connecting plate and the torsion spring of this utility model.

[0018] Reference numerals: 1_Baking tunnel, 2_Fixed frame, 3_Conveyor belt, 4_Placement frame, 5_Guide frame, 6_Limiting groove, 7_Groove, 8_Actuating rod, 9_Fixed block, 10_Guide rod, 11_Connecting plate, 12_Torsion spring, 13_Adjusting plate, 14_Stabilizing roller, 15_Heat insulation shell, 16_Roller, 17_Inclined chute. Detailed Implementation

[0019] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0020] Example: A rack for baking multilayer common mode inductors, such as... Figures 1-4 As shown, the baking tunnel 1 includes a fixed frame 2, a conveyor belt 3, placement racks 4, a guide frame 5, actuating rods 8, a fixing block 9, a guide rod 10, and a leveling assembly. The baking tunnel 1 provides a closed high-temperature environment. The airflow circulation system forces hot air to penetrate the inductor gap. The fixed frame 2 is connected inside the baking tunnel 1, and the conveyor belt 3 is installed on the fixed frame 2. Several placement racks 4 are connected to the conveyor belt 3. The step-type conveying placement racks 4 pass through the high-temperature zone, and the moving distance per cycle is equal to the distance between adjacent actuating rods 8. The guide frame 5 is connected to the top of the fixed frame 2. A limiting groove 6 is opened in the middle of the 5. Several fixing blocks 9 are connected to the side of the placement frame 4. Several grooves 7 are opened on the placement frame 4. The two ends of the toggle rod 8 are slidably connected in the limiting groove 6. The bottom of the toggle rod 8 is connected to the guide rod 10. The guide rod 10 is slidably connected in the fixing block 9. The toggle rod 8 is slidably connected in the groove 7. The guide rod 10 constrains the toggle rod 8 to move only vertically. The lifting stroke is determined by the peak height of the limiting groove 6, so as to realize the periodic micro-pinch lifting of the inductor, destroy the sintered adhesion base. The placement frame 4 is equipped with a leveling component for leveling the common mode inductor.

[0021] like Figure 2 and Figure 4 As shown, the leveling assembly includes a connecting plate 11, a torsion spring 12, and an adjusting plate 13. The bottom of the connecting plate 11 is slidably connected to the placement frame 4, and the top of the connecting plate 11 is higher than the placement frame 4. The bottom of the connecting plate 11 is fitted with a torsion spring 12, one end of which is connected to the placement frame 4, and the other end is connected to the connecting plate 11. The top of the connecting plate 11 is connected to the adjusting plate 13.

[0022] like Figure 4 As shown, it also includes a stabilizing roller 14, and the adjusting plate 13 is rotatably connected to the stabilizing roller 14 on the side facing the placement frame 4.

[0023] like Figure 4 As shown, it also includes a heat insulation shell 15, the bottom end of the placement rack 4 is connected to the heat insulation shell 15, the bottom end of the connecting plate 11 is slidably connected to the heat insulation shell 15, and the torsion spring 12 is located inside the heat insulation shell 15.

[0024] like Figure 3 As shown, it also includes a roller 16. The end of the lever 8 is rotatably connected to the roller 16. The roller 16 is rolled in the limiting groove 6. The roller 16 rolls purely in the limiting groove 6 to reduce frictional resistance.

[0025] like Figure 3 As shown, inclined grooves 17 are provided on both sides of the groove 7 to guide the lever 8 to slide precisely into the groove 7 at an inclination angle.

[0026] A robotic arm picks up the common-mode inductor to be baked and places it on the placement rack 4. The conveyor belt 3 drives the placement rack 4 to move backward. The baking tunnel 1 bakes the common-mode inductor. As the placement rack 4 moves, the rollers 16 on both ends of the actuating rod 8 enter the limiting grooves 6 of the guide frame 5. The rollers 16 rotate, reducing the friction that the actuating rod 8 needs to overcome to slide. As the placement rack 4 moves, the actuating rod 8 moves up and down along the limiting grooves 6. The actuating rod 8 slides along the guide rod 10 through the fixing block 9. When it slides down, it slides into the bottom of the groove 7. The groove 7 provides downward accommodating space. As the common mode inductor gradually moves upward, the lever 8 lifts it up. The lever 8 is guided by the inclined groove 17 and slides into the bottom of the groove 7. As the common mode inductor moves backward, the lever 8 continuously lifts the common mode inductor from the bottom. Moreover, the stroke of the lever 8 is within a safe range to ensure that the common mode inductor will not be pushed out and fall. During the baking process, the common mode inductor moves up and down to prevent sintering, ensure stable and uniform baking, and improve the baking effect and the quality of the common mode inductor. After baking, the common mode inductor is picked up by the robot at the rear end, and the conveyor belt 3 drives the placement rack 4 to rotate in a cycle to achieve uninterrupted operation.

[0027] When the robotic arm places the common mode inductor on the placement rack 4, it squeezes the adjustment plates 13 on both sides, the stabilizing roller 14 rotates, the connecting plate 11 slides to both sides, and the torsion spring 12 is stretched. The stretched torsion spring 12 is also inside the heat insulation shell 15. The heat insulation shell 15 isolates the heat from the influence of the torsion spring 12, so that the two adjustment plates 13 clamp the common mode inductor. As the common mode inductor moves up and down, the stabilizing roller 14 rotates accordingly, further maintaining the stability of the common mode inductor.

[0028] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A rack for baking multilayer common mode inductors, characterized in that, The invention is applied to a baking tunnel (1) and includes a toggle rod (8). A fixed frame (2) is connected inside the baking tunnel (1). A conveyor belt (3) is installed on the fixed frame (2). Several placement frames (4) are connected to the conveyor belt (3). A guide frame (5) is connected to the top of the fixed frame (2). A limit groove (6) is opened in the middle of the guide frame (5). Several fixed blocks (9) are connected to the side of the placement frame (4). Several grooves (7) are opened on the placement frame (4). The two ends of the toggle rod (8) are slidably connected to the limit groove (6). A guide rod (10) is connected to the bottom of the toggle rod (8). The guide rod (10) is slidably connected to the fixed block (9). The toggle rod (8) is slidably connected to the groove (7). A leveling component for leveling common mode inductors is provided on the placement frame (4).

2. The rack for baking multilayer common mode inductors according to claim 1, characterized in that, The leveling assembly includes a connecting plate (11), the bottom of which is slidably connected to the placement frame (4), the top of which is higher than the placement frame (4), a torsion spring (12) is sleeved on the bottom of the connecting plate (11), one end of which is connected to the placement frame (4) and the other end is connected to the connecting plate (11), and an adjustment plate (13) is connected to the top of the connecting plate (11).

3. The rack for baking multilayer common mode inductors according to claim 2, characterized in that, The adjusting plate (13) is rotatably connected to a stabilizing roller (14) on the side facing the placement frame (4).

4. The placement rack for baking multilayer common mode inductors according to claim 3, characterized in that, The bottom end of the placement rack (4) is connected to a heat insulation shell (15), the bottom end of the connecting plate (11) is slidably connected to the heat insulation shell (15), and the torsion spring (12) is located inside the heat insulation shell (15).

5. A rack for baking multilayer common mode inductors according to claim 4, characterized in that, The end of the lever (8) is rotatably connected to a roller (16), which is rolled within the limiting groove (6).

6. The rack for baking multilayer common mode inductors according to claim 5, characterized in that, Inclined grooves (17) are provided on both sides of the groove (7).

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