Glue printing tool for sticking magnetic core of transformer inductor

Abstract

The glue printing tool for sticking the magnetic core of the transformer inductor comprises a base, a cover plate and a magnetic core limiting structure, the magnetic core limiting structure is placed on the base, the cover plate is placed on the magnetic core limiting structure, a plurality of magnetic core grooves are formed in the magnetic core limiting structure, and glue printing holes are formed in the positions, corresponding to the magnetic core grooves, of the cover plate. Through the detachable structural design of the base, the cover plate and the magnetic core limiting structure, the structure is simple, moving is convenient, carrying is convenient, simultaneous glue printing of multiple magnetic cores can be achieved by designing multiple magnetic core grooves in the magnetic core limiting structure, glue printing holes are designed in the cover plate, glue printing positioning is accurate, the glue printing amount is controllable, it is guaranteed that the glue printing quality of products is consistent, and the production efficiency is improved. The cover plate is designed to be the detachable bottom plate and the frame, for magnetic cores with different glue printing requirements, the same glue printing effect can be achieved by replacing the bottom plate and the magnetic core limiting structure, the application range is wide, operation is easy, and product consistency is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of printing tooling technology, and in particular relates to a printing tooling for bonding magnetic cores of transformer inductors. Background Technology

[0002] As electronic devices evolve towards miniaturization, lightweight design, and high power density, planar transformer inductors, with their advantages of small size, good heat dissipation, and high efficiency, are widely used in power supplies, communications, and other fields. In the manufacturing process of planar transformer inductors, the bonding quality of the magnetic core has a crucial impact on product performance. The adhesive printing process, as a key step in achieving core bonding, directly determines the reliability and stability of the core bonding, as well as the overall performance of the inductor.

[0003] Currently, magnetic core bonding is mostly done manually, relying on manual application of adhesive followed by manual assembly. This method has many drawbacks. On the one hand, manual operation makes it difficult to precisely control the thickness and uniformity of the adhesive application, resulting in inconsistent core bonding strength, which in turn affects the stability of the inductor's magnetic circuit and reduces the overall reliability and consistency of the product. On the other hand, manual operation is inefficient, labor-intensive, and the amount of adhesive used is difficult to control precisely. Too much adhesive can lead to waste and component contamination, while too little adhesive cannot guarantee bonding strength, increasing the risk of core loosening. These problems severely restrict the large-scale, high-quality production of planar transformer inductors. Furthermore, manual adhesive application is unpredictable; insufficient adhesive can cause the core to crack, also affecting product quality. To overcome the shortcomings of manual adhesive application, current technology is trending towards automation. However, the equipment used in current technologies is bulky, costly, and complex, making it inconvenient to handle.

[0004] For example, patent document CN222750793U discloses a battery cell adhesive dispensing device. This device includes a first rotary table, a first feeding mechanism, an adhesive dispensing mechanism, a dispensing mechanism, a flipping mechanism, and a second feeding mechanism. The first rotary table has multiple first stations, some of which are used to pick up un-dispensed battery cells, while others are used to pick up battery cells with adhesive dispensing on one side only. The first feeding mechanism is located upstream of the first rotary table and is used to feed un-dispensed battery cells onto the rotary table. The adhesive dispensing mechanism is located downstream of the first rotary table and is used to dispensing adhesive onto either side of the un-dispensed battery cell or onto the un-dispensed surface of a battery cell with adhesive dispensing on one side only. The dispensing mechanism is located downstream of the adhesive dispensing mechanism and is used to dispensing battery cells with adhesive dispensing on both sides only. The flipping mechanism is located downstream of the adhesive dispensing mechanism. This technical solution can achieve automated dispensing, but the device is large, difficult to move, and has high operating costs and complex processes.

[0005] Therefore, it is necessary to design a glue-printing device suitable for bonding magnetic cores of transformer inductors that is flexible in handling and use, has controllable glue dispensing volume, and can perform multiple glue dispensing operations simultaneously. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a printing tool for bonding magnetic cores of transformer inductors, including a base, a cover plate, and a magnetic core limiting structure. The magnetic core limiting structure is placed on the base, and the cover plate is placed on the magnetic core limiting structure. The magnetic core limiting structure is provided with multiple magnetic core slots, and the cover plate is provided with printing holes at positions corresponding to the magnetic core slots.

[0007] Furthermore, a frame A is provided around the base, and the magnetic core limiting structure is placed inside the frame A. The magnetic core limiting structure is in contact with the inner edge of the frame A. The thickness of the frame A is the same as the thickness of the magnetic core limiting structure. Mounting holes A are provided at the four corners of the frame A.

[0008] Furthermore, handles are symmetrically arranged on the left and right sides of the upper surface of the magnetic core limiting structure, and when the magnetic core limiting structure is placed on the base, the handles extend beyond the outer edge of the base.

[0009] Furthermore, the cover plate includes a base plate and a frame B. The base plate is in contact with the base and the magnetic core limiting structure. The frame B is disposed on the base plate, and the four corners of the frame B are provided with mounting holes B corresponding to the mounting holes A.

[0010] Furthermore, the base plate and the frame B are movably connected and detachable.

[0011] Furthermore, the printing hole is located in the middle of the base plate, and its shape and area are the same as the part of the magnetic core that needs to be printed with adhesive.

[0012] Furthermore, it also includes a magnetic core demolding base. After the magnetic core limiting structure completes the printing process, it is placed on the magnetic core demolding base for demolding.

[0013] Furthermore, a boss is provided on the upper surface of the magnetic core demolding base at the position corresponding to the magnetic core groove of the magnetic core limiting structure.

[0014] Furthermore, the shape and size of the boss are consistent with the magnetic core groove, and the boss pushes out the magnetic core after printing the adhesive from bottom to top.

[0015] Furthermore, L-shaped limiting blocks are provided at each of the four right angles of the magnetic core demolding base, and the magnetic core limiting structure is connected in conjunction with the limiting blocks.

[0016] In summary, the beneficial effects of this utility model are as follows: The detachable structure design of the base, cover plate, and magnetic core limiting structure results in a simple structure, easy movement, and portability. Multiple magnetic core slots in the magnetic core limiting structure allow for simultaneous printing on multiple magnetic cores. Printing holes on the cover plate ensure accurate printing positioning and controllable printing volume, guaranteeing consistent printing quality and enabling multiple printing operations simultaneously. Furthermore, the detachable base plate and frame design of the cover plate allow for the same printing effect to be achieved by replacing the base plate and the corresponding magnetic core limiting structure for magnetic cores with different printing requirements, thus broadening its applicability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a top view of the base of the printing adhesive tool for bonding magnetic cores of transformer inductors provided by this utility model;

[0019] Figure 2 This is a top view of the magnetic core limiting structure of the printing adhesive tooling for bonding magnetic cores of transformer inductors provided by this utility model;

[0020] Figure 3 This is a top view of the cover plate of the printing adhesive tooling for bonding magnetic cores of transformer inductors provided by this utility model;

[0021] Figure 4 This is a front view of the core demolding base of the printing adhesive tooling for bonding magnetic cores of transformers and inductors provided by this utility model.

[0022] Figure 5 This is a top view of the core demolding base of the printing adhesive tooling for bonding magnetic cores of transformer inductors provided by this utility model.

[0023] The following are the reference numerals: 1-base, 2-cover plate, 3-magnetic core limiting structure, 4-magnetic core demolding base, 5-magnetic core groove, 6-printing hole, 7-bore, 8-handle, 9-base plate, 10-frame B, 11-L-shaped limiting block, 12-frame A, 13-mounting hole A, 14-mounting hole B. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-5As shown in the figure, this utility model embodiment provides a printing fixture for bonding magnetic cores of transformer inductors, including a base 1, a cover plate 2, and a magnetic core limiting structure 3. The magnetic core limiting structure 3 is placed on the base 1, and the cover plate 2 is placed on the magnetic core limiting structure 3. The magnetic core limiting structure 3 is provided with multiple magnetic core slots 5, and the cover plate 2 is provided with printing holes 6 at positions corresponding to the magnetic core slots 5. The magnetic core to be printed is placed in the magnetic core slot 5, and the magnetic core slot 5 limits the magnetic core to be printed. The printing holes 6 realize the printing function of the fixture. The base 1, cover plate 2, and magnetic core limiting structure 3 make the fixture easy to install and remove. The multiple magnetic core slots 5 allow multiple magnetic cores to be printed simultaneously, improving printing efficiency and accuracy.

[0026] In this embodiment, the base 1 is surrounded by a frame A12, and the magnetic core limiting structure 3 is placed inside the frame A12. The magnetic core limiting structure 3 is in contact with the inner edge of the frame A12. The thickness of the frame A12 is the same as the thickness of the magnetic core limiting structure 3. Mounting holes A13 are provided at the four corners of the frame A12. The base 1 is as follows: Figure 1 As shown, the magnetic core limiting structure 3 is limited and fixed by setting the frame A12, so that the magnetic core is not easy to move during the printing process, thus improving the printing accuracy.

[0027] In this embodiment, handles 8 are symmetrically arranged on the left and right sides of the upper surface of the magnetic core limiting structure 3. When the magnetic core limiting structure 3 is placed on the base 1, the handles 8 extend beyond the outer edge of the base 1. The magnetic core limiting structure 3 is as follows: Figure 2 As shown, the handle 8 facilitates the placement and demolding of the magnetic core limiting structure 3.

[0028] In this embodiment, the cover plate 2 includes a base plate 9 and a frame B10. The base plate 9 contacts the base 1 and the magnetic core limiting structure 3. The frame B10 is disposed on the base plate 9, and the four corners of the frame B10 are provided with mounting holes B14 corresponding to the mounting holes A13. The cover plate 2 is as follows... Figure 3 As shown, the cover plate 2 is limited and fixed by the installation holes, so that the cover plate 2 is aligned and pressed with the base 1, thereby improving the reliability of the printing adhesive.

[0029] In this embodiment, the base plate 9 and the frame B10 are movably connected and detachable, allowing for flexible replacement of the base plate 9. Furthermore, when the printing effect of the printing holes 6 on the base plate 9 is not good, it can be replaced, making it convenient to use and applicable to a wide range of applications.

[0030] In this embodiment, the printing hole 6 is located in the middle of the base plate 9, and its shape and area are the same as the part of the magnetic core that needs to be printed. This allows for the use of magnetic cores with various printing requirements. For magnetic cores with different printing locations, the corresponding base plate 9 and magnetic core limiting structure 3 can be replaced.

[0031] In this embodiment, a magnetic core demolding base 4 is also included. After the magnetic core limiting structure 3 completes the printing process, it is placed on the magnetic core demolding base 4 for demolding. The magnetic core demolding base 4 is as follows: Figure 4-5 As shown.

[0032] In this embodiment, a boss 7 is provided on the upper surface of the magnetic core demolding base 4 at a position corresponding to the magnetic core groove 5 of the magnetic core limiting structure 3, so as to achieve precise demolding without damaging the magnetic core that has been printed with adhesive.

[0033] In this embodiment, the shape and size of the boss 7 are the same as those of the magnetic core groove 5, and the boss pushes out the magnetic core after printing the adhesive from bottom to top.

[0034] In this embodiment, L-shaped limiting blocks 11 are provided on each of the four right angles of the magnetic core demolding base 4. The magnetic core limiting structure 3 is connected to the limiting blocks 11 to limit and fix the magnetic core limiting structure 3 on the magnetic core demolding base 4, thereby achieving precise demolding and preventing displacement during the demolding process.

[0035] During operation, studs are placed on the mounting holes A13 of the base 1. Studs can be placed in all four corner holes or only in the diagonal mounting holes A13. The studs have a clamping device. Then, the magnetic core limiting structure 3 is placed inside the frame of the base 1. Next, the magnetic core with the side to be printed facing up is placed in the magnetic core groove 5. After placement, the mounting hole B14 of the cover plate 2 is passed through the stud and placed above the magnetic core limiting structure 3. The clamping device on the stud is adjusted so that the lower surface of the cover plate 2 is tightly against the base 1 and the magnetic core limiting structure 3. Then, the printing operation is performed on the upper surface of the cover plate 2. The adhesive is printed onto the corresponding position of the magnetic core through the printing hole 6 on the base plate 9. After printing, the cover plate 2 and the magnetic core limiting structure 3 are removed in sequence. Then, the magnetic core limiting structure 3 is placed on the magnetic core demolding base 4. The handle 8 is squeezed down to press down the magnetic core limiting structure 3, and the printed magnetic core is pushed out from the magnetic core limiting structure 3 through the boss 7, thus completing the printing operation.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A tooling for applying adhesive to the magnetic core of a transformer inductor, characterized in that: It includes a base (1), a cover plate (2) and a magnetic core limiting structure (3). The magnetic core limiting structure (3) is placed on the base (1), and the cover plate (2) is placed on the magnetic core limiting structure (3). The magnetic core limiting structure (3) is provided with multiple magnetic core slots (5), and the cover plate (2) is provided with printing holes (6) at positions corresponding to the magnetic core slots (5).

2. The adhesive printing fixture for bonding magnetic cores of transformer inductors as described in claim 1, characterized in that: The base (1) is provided with a frame A (12) around its perimeter. The magnetic core limiting structure (3) is placed inside the frame A (12). The magnetic core limiting structure (3) is in contact with the inner edge of the frame A (12). The thickness of the frame A (12) is the same as the thickness of the magnetic core limiting structure (3). Mounting holes A (13) are provided on the four corners of the frame A (12).

3. The adhesive printing fixture for bonding magnetic cores of transformer inductors as described in claim 2, characterized in that: Handles (8) are symmetrically arranged on the left and right sides of the upper surface of the magnetic core limiting structure (3). When the magnetic core limiting structure (3) is placed on the base (1), the handles (8) extend beyond the outer edge of the base (1).

4. The adhesive printing fixture for bonding magnetic cores of transformer inductors as described in claim 1, characterized in that: The cover plate (2) includes a base plate (9) and a frame B (10). The base plate (9) is in contact with the base (1) and the magnetic core limiting structure (3). The frame B (10) is set on the base plate (9), and the four corners of the frame B (10) are provided with mounting holes B (14) corresponding to the mounting holes A (13).

5. The printing tooling for bonding magnetic cores of transformer inductors as described in claim 4, characterized in that: The base plate (9) and the frame B (10) are movably connected and detachable.

6. The printing tooling for bonding magnetic cores of transformer inductors as described in claim 3, characterized in that: The printing hole (6) is located in the middle of the base plate (9), and its shape and area are the same as the part of the magnetic core that needs to be printed.

7. The printing tooling for bonding magnetic cores of transformer inductors as described in claim 1, characterized in that: It also includes a magnetic core demolding base (4). After the magnetic core limiting structure (3) completes the printing, it is placed on the magnetic core demolding base (4) for demolding.

8. The printing tooling for bonding magnetic cores of transformer inductors as described in claim 7, characterized in that: The upper surface of the magnetic core demolding base (4) is provided with a boss (7) at the position corresponding to the magnetic core groove (5) of the magnetic core limiting structure (3).

9. The adhesive printing fixture for bonding magnetic cores of transformer inductors as described in claim 8, characterized in that: The shape and size of the boss (7) correspond to the magnetic core groove (5), and the boss (7) pushes out the magnetic core after printing from bottom to top.

10. The adhesive printing fixture for bonding magnetic cores of transformer inductors as described in claim 8, characterized in that: The magnetic core demolding base (4) has L-shaped limiting blocks (11) set on each of the four right angles, and the magnetic core limiting structure (3) is connected to the limiting blocks (11).

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