A steel sheet circuit board processing technology

Abstract

The invention relates to the technical field of steel sheet circuit board processing, specifically to a steel sheet circuit board processing technology, which is completed by using a copper plate recovery device and a circuit board processing device. The circuit board processing device comprises an assembly frame, a limit frame and a crimping mechanism. In the crimping mechanism designed by the invention, the pressing roller can be driven to perform a pressing process on the copper sheet adhered to the steel sheet during the movement of the shaped frame, so that the adhesion effect between the copper sheet and the steel sheet is better. At the same time, the pressing roller can also perform a pressing and flattening process on the copper sheet to ensure the flatness of the copper sheet surface and avoid the problem that the copper sheet is prone to warping when adhering to the steel sheet.

Description

Technical Field

[0001] The invention relates to the technical field of steel sheet circuit board processing, in particular to a steel sheet circuit board processing technology. Background Art

[0002] Steel sheet circuit board is a substrate with copper sheet adhered to the steel sheet by PP glue. Due to the good heat dissipation and dimensional stability of the steel sheet substrate with copper sheet, it is widely used in computer keyboard modules, power modules and other fields.

[0003] The steel sheet circuit board forming process includes the following steps: steel sheet preparation, substrate preparation, pattern transfer, etching, drilling and other steps.

[0004] The following problems still exist in the substrate preparation step during the processing of the above-mentioned steel sheet circuit board: 1. In the process of adhering the existing copper sheet to the steel sheet, the copper sheet is extruded by an extrusion plate that moves up and down, thereby ensuring that the copper sheet adheres more firmly to the steel sheet. Due to the surface flatness of the copper sheet and other reasons, the extrusion plate cannot make the copper sheet evenly stressed during the extrusion process, thereby failing to ensure that the copper sheet is completely adhered to the steel sheet. The copper sheet may warp up after extrusion, affecting the substrate molding effect.

[0005] 2. The existing steel sheet circuit board processing equipment does not promptly scrape off the glue overflowing during the copper sheet extrusion process, which causes the glue to adhere to the copper sheet and the steel sheet after overflowing for a period of time, affecting the aesthetics of the substrate and its surface flatness, and also affecting the molding effect of the substrate. Summary of the invention

[0006] The present invention is implemented by adopting the following technical scheme, a steel sheet circuit board processing technology, comprising the following steps: S1, steel sheet preparation: select a steel sheet of suitable material, and cut the steel sheet into a desired shape and size by mechanical tools or laser cutting.

[0007] S2, pasting substrate: the copper sheet is adhered to the steel sheet treated in S1 by glue through a crimping mechanism.

[0008] S3, surface treatment: the steel sheet to which the copper sheet is crimped after the S2 treatment is subjected to surface treatment such as tinning.

[0009] S4, embossing drawings: moving the circuit diagram to the surface of the copper sheet processed in S3 and etching it to obtain a circuit board.

[0010] The above steps S1-S2 are completed by using a circuit board processing device, which includes an assembly frame, and limit frames are installed at the four corners of the side wall of the assembly frame, and a crimping mechanism is installed on the assembly frame.

[0011] The described crimping mechanism includes a fixed part fixed on the assembly frame. Among them, a U-shaped frame with a downward opening and moving left and right is arranged on the fixed part. Brush rollers and pressing rollers that move up and down and are respectively used for applying glue and pressing the copper sheet are installed on the left and right sides of the U-shaped frame. A linkage connecting frame corresponding to the steel sheet is installed on the right end face of the vertical section of the U-shaped frame. One end of the linkage connecting frame close to the assembly frame is installed with a partition plate that is in contact with the steel sheet and has a U-shaped structure. A scraping plate corresponding to the pressing roller is arranged inside the partition plate.

[0012] Preferably, the fixed part includes support frames fixed at the four corners of the lower end face of the assembly frame. Among them, horizontal frames extending left and right are arranged on both the front and back sides of the assembly frame. Symmetric connecting blocks are installed on one side of the horizontal frame close to the assembly frame. One end of the connecting block far from the horizontal frame is fixed on the corresponding support frame. The front and back vertical sections of the U-shaped frame are respectively connected with the front and back horizontal frames in a limiting and sliding manner.

[0013] Preferably, vertical frames that are symmetric front and back are installed on the lower end face of the horizontal section of the U-shaped frame. A rotating shaft is installed through the vertical frames in a rotating manner. A gear is installed between the two vertical frames on the rotating shaft. Symmetric limiting plates are installed on both the left and right sides of the horizontal section of the U-shaped frame. A rack plate meshing with the gear is slidably arranged between the front and back limiting plates. The lower end faces of the rack plates are both installed with U-shaped plates. A brush roller is rotatably installed between the two shorter sections of the left U-shaped plate. A brush cloth is installed on the circumferential surface of the brush roller. A pressing roller is rotatably installed between the two shorter sections of the right U-shaped plate.

[0014] Preferably, a double-acting cylinder is installed in the middle of the upper end face of the U-shaped frame. A locking plate for locking and limiting the rack plate is installed at the telescopic end of the double-acting cylinder.

[0015] Preferably, vertical plates are installed on the upper end faces of the two shorter sections of the left U-shaped plate. A glue storage box with a downward opening is jointly installed between the vertical plates. The lower end of the outlet of the glue storage box abuts against the brush cloth. An opening and closing plate that moves left and right is installed at the outlet of the glue storage box. A through groove for controlling the opening and closing at the outlet of the glue storage box is opened on the opening and closing plate. A linkage frame with an L-shaped structure is arranged on the upper end face of the right end of the opening and closing plate. The vertical section of the linkage frame is fixed on the opening and closing plate.

[0016] A linkage rod is installed on the front vertical frame. An adjusting frame with an L-shaped structure is installed on the lower end face of the side of the linkage rod far from the vertical frame. The vertical section of the adjusting frame is fixed on the linkage rod. An adjusting inclined surface is opened on the left side of the upper end face of the horizontal section of the adjusting frame. And the horizontal section of the linkage frame abuts against the adjusting inclined surface.

[0017] Preferably, an inclined guide frame is commonly installed on the opposite surfaces of the front and rear limit frames, and a moving block that cooperates with the guide frame on the same side and automatically resets is slidably arranged on the front and rear limit frames. A clearing frame that cooperates with the guide frame and moves up and down is commonly installed between the front and rear moving blocks, and a horizontal rod is installed on the front end surface of the rack plate on the left, and guide plates that cooperate with the clearing frame are installed on both sides of the left and right ends of the horizontal rod away from the rack plate.

[0018] Preferably, the baffle plate is opened toward the assembly frame, a collecting frame matched with the scraper is installed on the horizontal section below the baffle plate, and a heating plate is installed on the right side wall of the scraper.

[0019] Compared with the prior art, the above-mentioned steel sheet circuit board processing technology has the following beneficial effects: 1. In the crimping mechanism designed in the present invention, the pressing roller can drive the copper sheet adhered to the steel sheet during the movement of the crimping frame, thereby improving the adhesion between the copper sheet and the steel sheet. At the same time, the pressing roller can also press and flatten the copper sheet to ensure the flatness of the copper sheet surface and avoid problems such as the copper sheet easily warping when adhering to the steel sheet.

[0020] 2. The partition plate and scraper designed in the present invention cooperate with each other to scrape and collect the glue overflowing during the extrusion process, avoid the glue adhering to the copper sheet and the steel sheet after drying, and improve the neatness and flatness of the substrate surface. The linkage frame and the profile frame cooperate with each other to ensure that the partition plate and the scraper always move synchronously with the pressing roller, ensuring that the scraper can collect the glue overflowing from the pressing roller in time.

[0021] 3. The limiting frame designed in the present invention can limit the steel sheet and the crimped copper sheet to avoid misalignment between the steel sheet and the copper sheet, which affects the assembly effect between the steel sheet and the copper sheet, and at the same time improves the forming effect of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 The present invention provides a process flow chart for processing a steel sheet circuit board.

[0025] Figure 2It is a schematic diagram of the three-dimensional structure of a circuit board processing device provided in an embodiment of the present invention.

[0026] Figure 3 The embodiment of the present invention provides Figure 2 A partial enlarged view of point A.

[0027] Figure 4 It is a front view of the installation structure between the limiting frame, the moving block and the cleaning frame provided in an embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure installed between the profile frame, rack plate and gear provided in an embodiment of the present invention.

[0029] Figure 6 The embodiment of the present invention provides Figure 5 A partial enlarged view of point B.

[0030] Figure 7 It is a front view of the installation structure between the glue storage box, the opening and closing plate and the adjustment frame provided in an embodiment of the present invention.

[0031] Figure 8 It is a top view of the internal structure of the mold frame provided in an embodiment of the present invention.

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the guide plate provided in an embodiment of the present invention.

[0033] Icons: 1. Assembly rack; 100. Steel sheet; 200. Copper sheet; 2. Limiting rack; 21. Guide rack; 22. Moving block; 23. Clearing rack; 24. Horizontal rod; 25. Guide plate; 3. Crimping mechanism; 31. Fixing part; 311. Support rack; 312. Horizontal rack; 313. Connecting block; 32. Forming rack; 321. Vertical rack; 322. Rotating shaft; 323. Gear; 324. Limiting plate; 32 5. Rack plate; 326. Profile plate; 327. Brush cloth; 328. Two-way cylinder; 329. Locking plate; 33. Brush roller; 331. Vertical plate; 332. Glue storage box; 333. Opening and closing plate; 334. Through groove; 335. Linkage frame; 336. Linkage rod; 337. Adjustment frame; 34. Pressing roller; 35. Linkage frame; 36. Blocking plate; 361. Collection frame; 362. Heating plate; 37. Scraper. Implementation

[0034] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] Refer to Figure 1 , a processing technology for a steel sheet circuit board, comprising the following steps: S1. Steel sheet preparation: Select a steel sheet 100 of appropriate material, and cut the steel sheet 100 into the required shape and size by mechanical tools or laser cutting, etc.

[0036] S2. Substrate pasting: Adhere the copper sheet 200 to the steel sheet 100 processed in S1 through glue by means of a pressing mechanism 3.

[0037] S3. Surface treatment: Perform surface treatment such as tin plating on the steel sheet 100 of the copper sheet 200 after S2 processing.

[0038] S4. Imprinting the drawing: Transfer the circuit diagram to the surface of the copper sheet 200 after S3 processing and etch to obtain the circuit board.

[0039] Refer to Figure 2 , the above steps S1 - S2 are completed in cooperation with a circuit board processing device. The circuit board processing device includes an assembly frame 1, and limit frames 2 are installed at the four corners of the side wall of the assembly frame 1. A pressing mechanism 3 is installed on the assembly frame 1.

[0040] Refer to Figure 2 and Figure 8 , the pressing mechanism 3 includes a fixed part 31 fixed on the assembly frame 1. Among them, a U-shaped frame 32 that moves left and right with a downward opening is arranged on the fixed part 31. A brushing roller 33 and a pressing roller 34 that move up and down and are respectively used for brushing glue and pressing the copper sheet 200 are installed on the left and right sides of the U-shaped frame 32. A linkage connecting frame 35 corresponding to the steel sheet 100 is installed on the right end face of the vertical section of the U-shaped frame 32. A blocking plate 36 that is in contact with the steel sheet 100 and has a U-shaped structure is installed at one end of the linkage connecting frame 35 close to the assembly frame 1. A scraping plate 37 corresponding to the pressing roller 34 is arranged inside the blocking plate 36.

[0041] Refer to Figure 2The fixing portion 31 includes a support frame 311 fixed at the four corners of the lower end surface of the assembly frame 1, wherein the assembly frame 1 is provided with a horizontal frame 312 extending left and right on both the front and rear sides, and the horizontal frame 312 is installed with a left-right symmetrical connecting block 313 on the side close to the assembly frame 1, and the end of the connecting block 313 away from the horizontal frame 312 is fixed on the corresponding support frame 311, and the front and rear vertical sections of the shaped frame 32 are respectively connected to the front and rear horizontal frames 312 with limited sliding.

[0042] During the specific operation, the steel sheet 100 is first placed on the upper end surface of the assembly frame 1 and the four corners of the steel sheet 100 are located inside the limit frame 2. At this time, the steel sheet 100 is in a limit locking state. At this time, the external driving force (human push or electric slider) drives the mold frame 32 to move to the left side of the upper end surface of the assembly frame 1.

[0043] See also Figure 2 , Figure 5 as well as Figure 6 The lower end surface of the horizontal section of the profile frame 32 is installed with a front-to-back symmetrical vertical frame 321, and a rotating shaft 322 is rotatably installed between the vertical frames 321. The rotating shaft 322 is located between the two vertical frames 321 and is installed with a gear 323. The left and right sides of the horizontal section of the profile frame 32 are installed with front-to-back symmetrical limit plates 324, and a rack plate 325 meshing with the gear 323 is slidably arranged between the front and rear limit plates 324. The lower end surfaces of the rack plates 325 are installed with profile plates 326, and a brush roller 33 is rotatably installed between the two shorter sections of the left profile plate 326, and a brush cloth 327 is installed on the circumferential surface of the brush roller 33, and a pressing roller 34 is rotatably installed between the two shorter sections of the right profile plate 326.

[0044] A driving motor is installed on the front end surface of the rotating shaft 322. During operation, the driving motor is started and drives the rotating shaft 322 to rotate counterclockwise. At this time, the rotating shaft 322 drives the rack plate 325 on the left side to move downward through the gear 323 during rotation. At this time, the rack plate 325 on the right side moves up. During the downward movement of the rack plate 325 on the left side, the brush roller 33 is driven to move downward through the shaped plate 326. Then, during the downward movement of the brush roller 33, the brush cloth 327 is driven to contact the upper end surface of the steel sheet 100. The limiting plate 324 can limit the rack plate 325 to avoid the possibility of the rack plate 325 falling.

[0045] See also Figure 6 A two-way cylinder 328 is installed in the middle of the upper end surface of the molded frame 32, and a locking plate 329 for locking and limiting the rack plate 325 is installed at the telescopic end of the two-way cylinder 328.

[0046] After the painting roller 33 contacts the upper end surface of the steel sheet 100, the driving motor is turned off, and the double-acting cylinder 328 is started. The telescopic end of the double-acting cylinder 328 drives the locking plates 329 to move towards each other. After the locking plates 329 are in close contact with the rack plate 325, the double-acting cylinder 328 is turned off. Furthermore, the locking plates 329 can lock the rack plate 325, so as to limit the rack plate 325 through the locking plates 329, and prevent the painting roller 33 from moving relatively up and down during the process of applying glue.

[0047] Refer to Figure 5 and Figure 7 , on the upper end surfaces of the two shorter segments of the U-shaped plate 326 on the left side, vertical plates 331 are installed. A glue storage box 332 with an opening downward is jointly installed between the vertical plates 331. The lower end of the outlet of the glue storage box 332 abuts against the painting cloth 327. An opening and closing plate 333 that moves reciprocally left and right is installed at the outlet of the glue storage box 332. A through groove 334 for controlling the opening and closing at the outlet of the glue storage box 332 is provided on the opening and closing plate 333. An L-shaped linkage frame 335 is provided on the upper end surface of the right end of the opening and closing plate 333, and the vertical section of the linkage frame 335 is fixed on the opening and closing plate 333.

[0048] A linkage rod 336 is installed on the vertical frame 321 on the front side. An L-shaped adjusting frame 337 is installed on the lower end surface of the side of the linkage rod 336 away from the vertical frame 321. The vertical section of the adjusting frame 337 is fixed on the linkage rod 336. An adjusting inclined surface is provided on the left side of the upper end surface of the horizontal section of the adjusting frame 337, and the horizontal section of the linkage frame 335 abuts against the adjusting inclined surface.

[0049] A connecting spring rod for controlling the automatic reset of the opening and closing plate 333 is jointly installed between the opening and closing plate 333 and the glue storage box 332. A glue inlet is provided on the rear side of the upper end surface of the glue storage box 332. Glue is poured into the inside of the glue storage box 332 manually through the glue inlet. During specific operation, when the rack plate 325 on the left drives the painting roller 33 to move downward through the U-shaped plate 326, the U-shaped plate 326 drives the glue storage box 332 to move downward synchronously through the vertical plates 331. When the glue storage box 332 moves downward, the glue storage box 332 drives the linkage frame 335 to move downward synchronously through the opening and closing plate 333. During the downward movement of the linkage frame 335, its horizontal section drives the linkage frame 335 to move leftward through the cooperation of the adjusting inclined surface. During the leftward movement of the linkage frame 335, the opening and closing plate 333 is driven to move leftward synchronously. At this time, the connecting spring rod is compressed. During the leftward movement of the opening and closing plate 333, the through groove 334 is driven to communicate with the outlet of the glue storage box 332, and the glue inside the glue storage box 332 falls on the painting cloth 327 through the outlet and the through groove 334.

[0050] The external driving force is used to push the mold frame 32 to move right. During the movement of the mold frame 32, the coating roller 33 rotates synchronously. At this time, the coating roller 33 applies the glue on the coating cloth 327 to the surface of the steel sheet 100 through the coating cloth 327. When the coating is completed, the two-way cylinder 328 is started, and the telescopic end of the two-way cylinder 328 drives the locking plate 329 to move away. At this time, the locking plate 329 is disengaged from the rack plate 325, and then the driving motor is started to drive the rotating shaft 322 to rotate clockwise so that the gear 323 is reset to the starting position. At this time, the linkage frame 335 moves up and resets, and the connecting spring rod resets and drives the opening and closing plate 333 to reset. At this time, the outlet of the glue storage box 332 is in a closed state.

[0051] After the glue coating on the upper end surface of the steel sheet 100 is completed, the copper sheet 200 is manually placed on the upper end surface of the assembly frame 1 and the four corners of the copper sheet 200 are located inside the limit frame 2. At this time, the copper sheet 200 is in a limited locking state, so the limit frame 2 can limit the steel sheet 100 and the crimped copper sheet 200 to avoid misalignment between the steel sheet 100 and the copper sheet 200, affecting the assembly effect between the steel sheet 100 and the copper sheet 200, while improving the forming effect of the substrate.

[0052] Start the driving motor and drive the rotating shaft 322 to rotate clockwise. At this time, the rotating shaft 322 drives the right rack plate 325 to move downward through the gear 323 during rotation. At this time, the left rack plate 325 moves up. During the downward movement of the right rack plate 325, the pressing roller 34 is driven downward through the profile plate 326, and then the pressing roller 34 contacts the upper end surface of the copper sheet 200 during the downward movement.

[0053] At this time, the external driving force pushes the mold frame 32 to move back and forth left and right, and the mold frame 32 moves synchronously. At this time, the pressing roller 34 can press the copper sheet 200, so that the adhesion effect between the copper sheet 200 and the steel sheet 100 is better. At the same time, the pressing roller 34 can also press and flatten the copper sheet 200 to ensure the flatness of the surface of the copper sheet 200 and avoid the problem of warping of the copper sheet 200 when it adheres to the steel sheet 100.

[0054] The partition plate and the scraper 37 cooperate with each other to scrape and collect the glue overflowing during the extrusion process, avoiding the glue from adhering to the copper sheet 200 and the steel sheet 100 after drying, thereby improving the cleanliness and flatness of the substrate surface. The linkage frame 35 and the mold frame 32 cooperate with each other to ensure that the partition plate and the scraper 37 always move synchronously with the pressing roller 34, ensuring that the scraper 37 can collect the glue overflowing from the pressing roller 34 in time to avoid the glue drying.

[0055] See also Figure 2 , Figure 3 , Figure 4 as well as Fig. 9The two front and rear limit frames 2 are jointly installed with an inclined guide frame 21 on the opposite surfaces, and the two front and rear limit frames 2 are slidably provided with a moving block 22 that cooperates with the guide frame 21 on the same side and automatically resets. A clearing frame 23 that cooperates with the guide frame 21 and moves up and down is jointly installed between the two front and rear moving blocks 22. A horizontal rod 24 is installed on the front end surface of the rack plate 325 on the left, and guide plates 25 that cooperate with the clearing frame 23 are installed on both sides of the left and right sides of one end of the horizontal rod 24 away from the rack plate 325.

[0056] The guide plate 25 described herein is an L-shaped structure, the horizontal section of the guide plate 25 is fixed on the horizontal rod 24, the vertical section of the guide plate 25 is long enough and the guide plate 25 will not collide with the steel sheet 100 during the glue coating process on the upper end surface of the steel sheet 100, an elastic telescopic rod is installed between the moving block 22 and the limiting frame 2, and a guide slope is provided on the side of the vertical section of the guide plate 25 away from the glue storage box 332. When the pressing roller 34 moves to the left and right sides of the assembly frame 1, the guide slope on the guide plate 25 fits with the cleaning frame 23 on the same side. At this time, the guide plate 25 continues to move. During the movement of the guide plate 25, the cleaning frame 23 is driven downward by the guide slope, and then the cleaning frame 23 can scrape the glue overflowed by the pressing roller 34 from the steel sheet 100. At this time, the cleaning frame 23 continues to move downward along the guide frame 21 to drive the glue to fall on the guide frame 21.

[0057] After the cleaning rack 23 has scraped off the glue, the guide plate 25 is reset, and the cleaning rack 23 is reset synchronously at this time, and the glue scraping step is finished.

[0058] See also Figure 8 The baffle plate 36 has its opening facing the assembly frame 1 , a collecting frame 361 matching with the scraper 37 is installed on the horizontal section below the baffle plate 36 , and a heating plate 362 is installed on the right side wall of the scraper 37 .

[0059] The heating plate 362 is composed of a wound resistance wire, and the scraper 37 is made of metal. When the resistance wire is energized during the pressing process of the pressing roller 34, the resistance wire is energized and heated to heat the scraper 37. After the scraper 37 is heated, the glue attached to the surface of the scraper 37 can be melted, and the melted glue drips into the collection frame 361 to prevent the glue from adhering to the scraper 37 and affecting the subsequent scraping effect of the scraper 37.

[0060] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel sheet circuit board processing process, comprising the following steps: S1. Steel sheet preparation: Select a steel sheet (100) of suitable material, and cut the steel sheet (100) into a desired shape and size using a mechanical tool or laser cutting; S2, pasting the substrate: the copper sheet (200) is adhered to the steel sheet (100) treated in S1 by glue through a crimping mechanism (3); S3, surface treatment: performing tinning surface treatment on the steel sheet (100) of the crimped copper sheet (200) after the treatment in S2; S4, embossing the drawing: moving the circuit diagram onto the surface of the copper sheet (200) processed in S3 and etching it to obtain a circuit board; The above steps S1-S2 are completed by using a circuit board processing device, which includes an assembly frame (1), characterized in that: the four corners of the side wall of the assembly frame (1) are equipped with limit frames (2), and the assembly frame (1) is equipped with a crimping mechanism (3); wherein: The crimping mechanism (3) comprises a fixing part (31) fixed on the assembly frame (1), wherein the fixing part (31) is provided with a shaped frame (32) which opens downward and moves left and right, and a brushing roller (33) and a pressing roller (34) which move up and down and are respectively used for applying glue and pressing the copper sheet (200) are installed on the left and right sides of the shaped frame (32), and a linkage frame (35) corresponding to the steel sheet (100) is installed on the right end face of the vertical section of the shaped frame (32), and a blocking plate (36) in a shaped structure which is close to the assembly frame (1) and is in contact with the steel sheet (100) is installed on one end of the linkage frame (35), and a scraper (37) corresponding to the pressing roller (34) is arranged inside the blocking plate (36); The lower end surface of the horizontal section of the profile frame (32) is equipped with a front-to-back symmetrical vertical frame (321), a rotating shaft (322) is rotatably installed between the vertical frames (321), the rotating shaft (322) is located between the two vertical frames (321) and is equipped with a gear (323), the left and right sides of the horizontal section of the profile frame (32) are equipped with front-to-back symmetrical limit plates (324), a rack plate (325) meshing with the gear (323) is slidably arranged between the front and rear limit plates (324), the lower end surface of the rack plate (325) is equipped with a profile plate (326), a brush roller (33) is rotatably installed between the two shorter sections of the left profile plate (326), a brush cloth (327) is installed on the circumferential surface of the brush roller (33), and a pressing roller (34) is rotatably installed between the two shorter sections of the right profile plate (326); The baffle plate (36) has an opening facing the assembly frame (1), a collecting frame (361) matched with the scraper (37) is installed on the horizontal section below the baffle plate (36), and a heating plate (362) is installed on the right side wall of the scraper (37).

2. The steel sheet circuit board processing process according to claim 1, characterized in that: The fixed part (31) includes support frames (311) fixed at the four corners of the lower end face of the assembly frame (1). Horizontal frames (312) extending left and right are arranged on both the front and rear sides of the assembly frame (1). Symmetric connecting blocks (313) are installed on the side of the horizontal frame (312) close to the assembly frame (1). One end of the connecting block (313) far from the horizontal frame (312) is fixed on the corresponding support frame (311). The front and rear vertical sections of the U-shaped frame (32) are respectively in limit sliding connection with the front and rear horizontal frames (312).

3. The steel sheet circuit board processing process according to claim 1, characterized in that: A double-acting cylinder (328) is installed in the middle of the upper end face of the U-shaped frame (32). A locking plate (329) for locking and limiting the rack plate (325) is installed at the telescopic end of the double-acting cylinder (328).

4. The steel sheet circuit board processing process according to claim 1, characterized in that: Vertical plates (331) are installed on the upper end faces of the two shorter sections of the left U-shaped plate (326). A glue storage box (332) with an opening downward is jointly installed between the vertical plates (331). The lower end of the outlet of the glue storage box (332) abuts against the coating cloth (327). An opening and closing plate (333) that moves left and right is installed at the outlet of the glue storage box (332). A through groove (334) for controlling the opening and closing at the outlet of the glue storage box (332) is opened on the opening and closing plate (333). A linkage frame (335) with an L-shaped structure is arranged on the upper end face of the right end of the opening and closing plate (333). The vertical section of the linkage frame (335) is fixed on the opening and closing plate (333). A linkage rod (336) is installed on the front vertical frame (321). An adjusting frame (337) with an L-shaped structure is installed on the lower end face of the side of the linkage rod (336) far from the vertical frame (321). The vertical section of the adjusting frame (337) is fixed on the linkage rod (336). An adjusting inclined surface is opened on the left side of the upper end face of the horizontal section of the adjusting frame (337), and the horizontal section of the linkage frame (335) abuts against the adjusting inclined surface.

5. The steel sheet circuit board processing process according to claim 1, characterized in that: An inclined guiding frame (21) is jointly installed on the opposite faces of the front and rear limiting frames (2). Moving blocks (22) that are slidably arranged on the front and rear limiting frames (2) and are matched with the guiding frame (21) on the same side and automatically reset are provided. A cleaning frame (23) that is matched with the guiding frame (21) and moves up and down is jointly installed between the front and rear moving blocks (22). A horizontal rod (24) is installed on the front end face of the left rack plate (325). Guide plates (25) that are matched with the cleaning frame (23) are installed on both the left and right sides of the end of the horizontal rod (24) far from the rack plate (325).

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