IGBT (Insulated Gate Bipolar Translator) substrate film pasting device

Abstract

The utility model discloses an IGBT (Insulated Gate Bipolar Translator) substrate film pasting device which comprises a base and a mounting plate, one side of the mounting plate is provided with a transmission wheel and a tension control assembly, and the other side of the mounting plate is provided with a film pasting assembly; the tension control assembly comprises a second sliding rail, a second sliding block is arranged in the second sliding rail in a sliding mode, a rotating roller is rotationally arranged in front of the second sliding block, and a balancing weight is arranged behind the second sliding block. The film pasting assembly comprises an installation frame and an air cylinder, and three guide wheels are arranged in front of the installation frame and the installation plate in a rotating mode. During film pasting, due to the fact that a film material is pulled, the rotating roller and the second sliding block can move upwards through pulling force, the film releasing roller can continuously keep the same slow discharging speed, and the film pasting efficiency is improved; and after film pasting is completed, the number of the film materials at the bottom is increased through discharging of the film releasing roller, so that the rotating roller slides downwards, namely, the tension force on the film materials is automatically controlled, and the using effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of IGBT substrate film bonding technology, specifically an IGBT substrate film bonding device. Background Technology

[0002] IGBTs, as power semiconductor devices, are widely used in the field of power electronics. IGBT substrate lamination involves attaching a thin film with special properties to the surface of the IGBT substrate. This film typically has good insulation properties, effectively preventing short circuits between different circuit components on the substrate and ensuring the stable electrical performance of the IGBT. Simultaneously, it possesses a certain degree of thermal conductivity, helping to quickly dissipate the heat generated during IGBT operation, preventing overheating from affecting device performance and lifespan. Furthermore, the lamination also provides physical protection, preventing scratches, contamination, and other damage to the substrate surface, improving the yield and reliability of IGBT products.

[0003] In existing film-laying devices, when applying film to IGBT substrates, the film material is usually placed on the film-feeding roller of the film-laying device and continuously fed out by the film-feeding roller. However, during film application, the film will be applied to the substrate quickly. At this time, the film-feeding roller needs to speed up the feeding speed to ensure that there is enough film material at the bottom. However, continuously changing the speed of the film-feeding roller may affect the stability of the tension structure, resulting in the film material being either too loose or too tight. Utility Model Content

[0004] The purpose of this invention is to provide an IGBT substrate film application device to solve the problem mentioned in the background art that the continuously changing speed of the film application roller may affect the stability of the tension structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An IGBT substrate film application device includes a base and a mounting plate. A transmission wheel and a tension control assembly are provided on one side of the mounting plate, and a film application assembly is provided on the other side of the mounting plate.

[0007] The tension control assembly includes a second slide rail, a second slider is slidably disposed inside the second slide rail, a rotating roller is rotatably disposed in front of the second slider, and a counterweight is disposed behind the second slider;

[0008] The film application assembly includes a mounting bracket and a cylinder, and three guide wheels are rotatably arranged in front of the mounting bracket and in front of the mounting plate.

[0009] In a preferred embodiment of this utility model, an electric guide rail is provided on the base, an electric slider is slidably disposed on the electric guide rail, and a placement groove is provided on the electric slider.

[0010] In a preferred embodiment of this utility model, a film-feeding roller is provided on the top of the mounting plate, and both the film-feeding roller and the drive wheel are driven by a motor.

[0011] In a preferred embodiment of the present invention, a first slide rail is provided on one side of the transmission wheel, a first slider is slidably disposed inside the first slide rail, and a limit roller is rotatably disposed in front of the first slider.

[0012] In a preferred embodiment of this utility model, a threaded opening is provided on the outer side of the first slide rail, and a bolt is provided inside the threaded opening. The bolt is threadedly connected to the threaded opening, and one side of the bolt is rotatably connected to the first slider.

[0013] In a preferred embodiment of the present invention, a film-bearing platform and a first film-pressing roller are further provided in front of the mounting frame, wherein the first film-pressing roller is rotatably mounted.

[0014] In a preferred embodiment of this utility model, the mounting bracket is rotatably mounted on the mounting plate on one side, the top of the cylinder is rotatably mounted, and the bottom telescopic end of the cylinder is rotatably connected to the other side of the mounting bracket.

[0015] In a preferred embodiment of this utility model, a support plate is provided on the outer side of the mounting frame, and a first electric push rod and a second electric push rod are provided on the support plate.

[0016] In a preferred embodiment of the present invention, a second pressure roller is rotatably mounted on the bottom telescopic end of the first electric push rod, and a film cutter is mounted on the bottom telescopic end of the second electric push rod.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0018] Beneficial effects: During film application, the film material is pulled, but there is no need to adjust the feeding speed of the film feeding roller. At this time, the pulling force will cause the rotating roller and the second slider to move upward, and there is no need to change the feeding speed of the film material. The film feeding roller can maintain the same slow feeding speed. After the film application is completed, the feeding roller feeds more film material at the bottom, causing the rotating roller to slide down. This automatically controls the tension of the film material, ensuring the effect during use. When the film material is too loose or too tight, the rotating roller will move up and down accordingly to ensure the stability of the film material.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the main structure in an IGBT substrate bonding device;

[0022] Figure 2 This is a schematic diagram of the mounting plate structure in an IGBT substrate bonding device;

[0023] Figure 3 This is a schematic diagram of the mounting structure of the limiting roller in an IGBT substrate bonding device;

[0024] Figure 4 This is a schematic diagram of a mounting bracket structure in an IGBT substrate bonding device;

[0025] Figure 5 This is a schematic diagram of the placement groove structure in an IGBT substrate bonding device.

[0026] In the diagram: 1. Base; 11. Mounting plate; 12. Electric guide rail; 13. Electric slider; 14. Placement slot; 2. Film feeding roller; 21. Drive wheel; 22. Limiting roller; 23. First slide rail; 24. First slider; 3. Bolt; 31. Threaded joint; 32. Second slide rail; 33. Rotating roller; 34. Second slider; 35. Counterweight; 4. Guide wheel; 41. Mounting frame; 42. First pressure roller; 43. Film carrying platform; 44. Cylinder; 45. Support plate; 5. First electric push rod; 51. Second electric push rod; 52. Second pressure roller; 53. Film cutter. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] Please refer to Figures 1-5This utility model discloses an IGBT substrate film bonding device, including a base 1 and a mounting plate 11. The base 1 and the mounting plate 11 are the mounting structure of the device, used for mounting other structures. An electric guide rail 12 is provided on the base 1, and an electric slider 13 is slidably provided on the electric guide rail 12. A placement groove 14 is provided on the electric slider 13, which is used to place the substrate. The placement groove 14 is designed according to the substrate model. That is, the electric guide rail 12 drives the electric slider 13 to slide, thereby driving the placement groove 14 above and the substrate to slide.

[0029] A drive wheel 21 and a tension control assembly are provided on one side of the mounting plate 11. A film feeding roller 2 is provided on the top of the mounting plate 11. Both the film feeding roller 2 and the drive wheel 21 are driven by a motor, meaning they rotate automatically. The film feeding roller 2 is used to hold the film material. A first slide rail 23 is provided on one side of the drive wheel 21. A first slider 24 is slidably mounted inside the first slide rail 23. A limit roller 22 is rotatably mounted in front of the first slider 24. A threaded opening 31 is provided on the outside of the first slide rail 23. A bolt 3 is installed inside the threaded opening 31. The bolt 3 is threadedly connected to the threaded opening 31. One side of the bolt 3 is rotatably connected to the first slider 24. That is, by rotating the bolt 3 in the threaded opening 31, the first slider 24 slides against the limit roller 22, thus ensuring that the limit roller 22 limits the film material.

[0030] On the other side of the mounting plate 11, a film-applying assembly is provided. The film-applying assembly includes a mounting frame 41 and a cylinder 44. Three guide wheels 4 are rotatably arranged in front of the mounting frame 41 and in front of the mounting plate 11. Two guide wheels are located in front of the mounting frame 41, and one guide wheel is located in front of the mounting plate 11. All guide wheels are used to guide the film material. One side of the mounting frame 41 is rotatably mounted on the mounting plate 11. The top of the cylinder 44 is rotatably mounted, and the telescopic end of the bottom of the cylinder 44 is rotatably connected to the other side of the mounting frame 41. A film-bearing platform 43 and a first pressure plate are also provided in front of the mounting frame 41. The first pressure roller 42 is rotatably mounted. The first pressure roller 42 and the guide wheel 4 are located on both sides of the mounting frame 41, as shown in the attached figure. The film material passes through different guide wheels 4 in sequence, and passes through the top of the bearing film platform 43 and the bottom of the first pressure roller 42. In use, the first pressure roller 42 is pushed by the cylinder 44, so that the first pressure roller 42 and the bottom of the film material are pressed on the substrate. At this time, the substrate is moved to the support plate 45 by the electric slider 13. Thus, through friction and the rotation of the first pressure roller 42, the film is adhered to the substrate.

[0031] The tension control component includes a second slide rail 32, inside which a second slider 34 is slidably disposed. A rotating roller 33 is rotatably disposed in front of the second slider 34, and a counterweight 35 is disposed behind the second slider 34. During film application, the film material is pulled, but there is no need to adjust the feeding speed of the film feeding roller 2. At this time, the pulling force will cause the rotating roller 33 and the second slider 34 to move upward, and there is no need to change the feeding speed of the film material. The film feeding roller 2 can continuously maintain the same slow feeding speed. After the film application is completed, the feeding of the film feeding roller 2 will increase the amount of film material at the bottom, thereby causing the rotating roller 33 to slide down. The above operation is repeated during subsequent film applications.

[0032] A support plate 45 is provided on the outside of the mounting bracket 41. A first electric push rod 5 and a second electric push rod 51 are provided on the support plate 45. A second film pressing roller 52 is rotatably provided on the bottom telescopic end of the first electric push rod 5, and a film cutting knife 53 is provided on the bottom telescopic end of the second electric push rod 51. When applying the film, the first electric push rod 5 pushes the second film pressing roller 52 to press it onto the film on the substrate, and then the second electric push rod 51 pushes the film cutting knife 53 to cut the film, thus completing the film application.

[0033] The working principle of this utility model is as follows: The placement groove 14 is used to place the substrate. The electric guide rail 12 drives the electric slider 13 to slide, thereby driving the placement groove 14 and the substrate to slide. The film material is placed on the film roller 2. The bolt 3 rotates in the screw hole 31, thereby causing the first slider 24 to slide with the limiting roller 22, that is, ensuring that the limiting roller 22 limits the film material. The film material passes through different guide wheels 4 in sequence, and passes through the top of the carrying film platform 43 and the bottom of the first pressing roller 42. In use, the cylinder 44 pushes the first pressing roller 42, so that the first pressing roller 42 and the bottom of the film material press on the substrate. At this time, the electric slider 13 drives the substrate to move towards the support plate 45. Through friction and the rotation of the first pressure roller 42, the film is adhered to the substrate. The first electric push rod 5 pushes the second pressure roller 52 to press the film on the substrate. Then, the second electric push rod 51 pushes the film cutter 53 to cut the film, thus completing the film application. During the film application, the film material is pulled, but there is no need to adjust the feeding speed of the film feeding roller 2. At this time, the pulling force will cause the rotating roller 33 and the second slider 34 to move upward, and there is no need to change the feeding speed of the film material. The film feeding roller 2 can continue to maintain the same slow feeding speed. After the film application is completed, the feeding of the film feeding roller 2 will increase the amount of film material at the bottom, causing the rotating roller 33 to slide down. The above operation is repeated for subsequent film applications.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An IGBT substrate film bonding device, characterized in that: Includes a base (1) and a mounting plate (11). One side of the mounting plate (11) is provided with a transmission wheel (21) and a tension control assembly, and the other side of the mounting plate (11) is provided with a film application assembly. The tension control assembly includes a second slide rail (32), a second slider (34) is slidably disposed inside the second slide rail (32), a rotating roller (33) is rotatably disposed in front of the second slider (34), and a counterweight (35) is disposed behind the second slider (34). The film application assembly includes a mounting bracket (41) and a cylinder (44), and three guide wheels (4) are rotatably arranged in front of the mounting bracket (41) and in front of the mounting plate (11).

2. The IGBT substrate film pasting device according to claim 1, characterized in that, An electric guide rail (12) is provided on the base (1), an electric slider (13) is slidably provided on the electric guide rail (12), and a placement groove (14) is provided on the electric slider (13).

3. The IGBT substrate film pasting device according to claim 1, characterized in that, The top of the mounting plate (11) is provided with a film feeding roller (2), and the film feeding roller (2) and the drive wheel (21) are both driven by a motor.

4. The IGBT substrate film pasting device according to claim 1, characterized in that, A first slide rail (23) is provided on one side of the transmission wheel (21), and a first slider (24) is slidably provided inside the first slide rail (23). A limit roller (22) is rotatably provided in front of the first slider (24).

5. The IGBT substrate film pasting device according to claim 4, wherein The first slide rail (23) has a screw hole (31) on its outer side, and a bolt (3) is provided inside the screw hole (31). The bolt (3) is threadedly connected to the screw hole (31), and one side of the bolt (3) is rotatably connected to the first slider (24).

6. The IGBT substrate film pasting device according to claim 1, wherein The mounting frame (41) is further provided with a film-bearing platform (43) and a first film-pressing roller (42) in front of it. The first film-pressing roller (42) is rotatably mounted.

7. The IGBT substrate film pasting device according to claim 1, wherein The mounting bracket (41) is rotatably mounted on the mounting plate (11) on one side, the top of the cylinder (44) is rotatably mounted, and the bottom telescopic end of the cylinder (44) is rotatably connected to the other side of the mounting bracket (41). 8.The IGBT substrate film pasting device according to claim 1, wherein A support plate (45) is provided on the outside of the mounting bracket (41), and a first electric push rod (5) and a second electric push rod (51) are provided on the support plate (45).

9. The IGBT substrate film pasting device according to claim 8, wherein A second pressure roller (52) is rotatably mounted on the bottom telescopic end of the first electric push rod (5), and a film cutter (53) is mounted on the bottom telescopic end of the second electric push rod (51).

Images