Copper foil pressing auxiliary device for printed circuit board production

Abstract

The application belongs to the technical field of circuit board production, and discloses a copper foil pressing auxiliary device for printed circuit board production, which comprises a platform box, a uniform air cavity is formed at the inner side edge of the platform box, a plurality of suction holes penetrating into the uniform air cavity are equidistantly formed on the top of the platform box, and a sliding groove is formed at the top of the platform box near the rear side edge. The sponge sleeve is sleeved on the outer surface of the roller, then the arc-shaped cover is held by hand, and the roller is pressed downward together with the arc-shaped cover. When the arc-shaped cover is pressed downward, the feedback device is triggered to work. The feedback device drives the adsorption device to support and constrain the sponge sleeve. When the sponge sleeve slides, the inductive device supplies negative pressure adsorption force to the adsorption device. Thus, the high-density sponge sleeve can adsorb the ultra-thin copper foil on the outer surface by the negative pressure adsorption force when rolling, and the ultra-thin copper foil can be uniformly peeled off from the plate.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing technology, and in particular to an auxiliary device for copper foil lamination in printed circuit board manufacturing. Background Technology

[0002] As electronic products develop towards miniaturization, high frequency, and high density, the production of circuit boards using the MSAP process represents the optimal balance point across five dimensions: fine circuit precision, high-speed electrical performance, production cost, production line compatibility, and explosive downstream demand. The MASP process refers to high-end HDI PCBs, SLP-type substrates, IC packaging BT substrates, and advanced packaging RDL redistribution layers. It is a fine circuit metallization process, with additive electroplating as the main process and micro-etching as a supplementary process. Currently, when manufacturing circuit boards using the MSAP process, the ultra-thin copper foil used in the board needs to be manually peeled off. However, during the peeling process, due to the thinness of the ultra-thin copper foil, it is easy for the ultra-thin copper foil to be scratched, dented, deformed, and other quality abnormalities caused by uneven force. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a copper foil lamination auxiliary device for printed circuit board production.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a copper foil pressing auxiliary device for printed circuit board production, comprising a platform box, an air equalization chamber is provided inside the platform box near one side edge, a plurality of suction holes penetrating into the air equalization chamber are provided at equal intervals on the top of the platform box, and a sliding groove is provided on the top of the platform box near the rear side edge, and a sliding plate is slidably arranged inside the sliding groove. The skateboard has an internal cavity with a guide plate inside. The top of the guide plate slides through to the top of the skateboard. A cylindrical base is fixed to the top of the skateboard, and an adsorption device is installed on the cylindrical base. A sensing device is installed inside the slide groove, and a feedback device is installed inside the skateboard.

[0005] Preferably, a front door is provided on the front side of the platform box near both sides of the edge, and multiple control buttons are provided on the corner of the front side of the platform box near the top. An arc-shaped cover is provided on the top of the cylindrical base, and the rear side of the arc-shaped cover is fixed to the top of the cylindrical base.

[0006] Preferably, the adsorption device includes a roller, one end of which has an annular cavity. A retaining ring is fixed to one side of a cylindrical seat, and the retaining ring rotates and engages inside the annular cavity. An adjustment cavity is formed inside the cylindrical seat, and a cylindrical cavity is formed inside the roller. One end of the cylindrical cavity extends into the adjustment cavity. Multiple arc-shaped grooves are equidistantly formed along the circumferential direction on the outer surface of the roller. A limiting channel extending into the cylindrical cavity is formed on the bottom surface of each of the multiple arc-shaped grooves. An air guide channel extending into the annular cavity is formed on one side of each of the multiple limiting channels. A through-hole is formed near the top edge on one side of the adjustment cavity. One end of the through-hole extends to the outside of the cylindrical seat and is located inside the retaining ring. One end of the through-hole is connected to the annular cavity.

[0007] Preferably, each of the multiple arc-shaped grooves has an arc-shaped plate inside, and each of the multiple limiting channels has a push plate slidably disposed between the inner walls of the multiple limiting channels. The tops of the multiple push plates are fixed to the bottoms of the arc-shaped plates, and the bottoms of the multiple push plates extend into the cylindrical cavity. Each of the multiple push plates has a locking block fixed to its bottom. Each of the multiple arc-shaped plates has an arc-shaped cavity inside, and each of the multiple arc-shaped cavities has multiple side air passages on both sides. Each of the multiple side air passages has multiple air intake holes equidistantly spaced on its inner top surface that extend to the top of the arc-shaped plate. Each of the multiple push plates has a bent air passage on one side, and one end of each of the multiple bent air passages extends into the arc-shaped cavity. One end of each of the multiple bent air passages is located below one end of the air guide passage.

[0008] Preferably, a reciprocating cavity is formed between the inner walls of the cylindrical cavity, and a cylindrical rod is slidably arranged between the inner walls of the cylindrical cavity. Both ends of the cylindrical rod are conical, and one end of the cylindrical rod extends into the adjustment cavity. Multiple locking channels are equidistantly formed on the outer surface of the cylindrical rod near the edge of the other end. Multiple locking blocks are correspondingly slidably engaged in the locking channels. An annular plate is fixed to the outer surface of the cylindrical rod inside the reciprocating cavity. A return spring is fixed between one side of the annular plate and the inner wall of the reciprocating cavity. A low-density sponge sleeve is fitted onto the outer surface of the roller, and a high-density sponge sleeve is provided on the outer surface of the low-density sponge sleeve.

[0009] Preferably, the sensing device includes two limiting blocks, which are fixed to the outer surfaces of the two sides of the slide plate near the bottom edge. Limiting grooves are opened on the inner walls of both sides of the slide groove near the bottom edge. The two limiting blocks are slidably and sealingly engaged in the limiting grooves. Multiple rectangular openings are equidistantly opened on the bottom surface of the limiting groove on the side near the gas equalization chamber. The multiple rectangular openings penetrate into the gas equalization chamber. Side grooves are opened on the inner walls of the multiple rectangular openings. Rectangular plates are slidably arranged between the inner walls of the multiple rectangular openings. Spring plates are arranged inside the multiple side grooves. One end of the multiple spring plates is engaged on the outer surface of the rectangular plate.

[0010] Preferably, each of the multiple rectangular plates has a T-shaped air passage inside. The vertical end of the T-shaped air passage extends to one end of the rectangular plate and is located in the limiting groove. The horizontal ends of the T-shaped air passage extend to the outer surface of the rectangular plate and are located at the edge of the other end. The horizontal ends of the T-shaped air passage slide and seal against the inner walls on both sides of the rectangular opening.

[0011] Preferably, one of the limiting blocks has a groove on one side, the bottom surface of the groove has a strip-shaped opening, the bottom surface of the strip-shaped opening has a connecting opening in the middle, both ends of the limiting block are inclined, and both sides of one end of the rectangular plate are inclined.

[0012] Preferably, the feedback device includes a cylindrical tube, which is fixed to the inner bottom surface of the inner cavity. The top of the cylindrical tube slides through into the adjustment cavity. A conical plate is connected to the top of the cylindrical tube. Multiple throttling holes that penetrate into the cylindrical tube are equidistantly opened at the bottom of the conical plate. An annular sealing gasket is embedded in the inner bottom surface of the adjustment cavity. The bottom of the conical plate and the top of the annular sealing gasket are in contact with each other. The top conical surface of the conical plate is in contact with the conical surface of one end of the cylindrical rod.

[0013] Preferably, a support spring is fixed between the bottom of the guide plate and the inner bottom surface of the adjustment cavity. The inner walls on both sides of the inner cavity are provided with side openings that extend to the outside of the slide plate. A lever is slidably arranged between the inner walls on both sides of the two side openings. An L-shaped slide is provided near the top edge of the inner walls on both sides of the slide groove. One end of each of the two L-shaped slides extends to the top of the platform box. One end of each of the two levers extends into the interior of the L-shaped slide and is located at the top edge of the platform box. One end of the connecting port extends to the bottom of the cylindrical tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, a sponge sleeve is fitted onto the outer surface of a roller. Then, the arc-shaped cover is held and pressed down along with the roller. When pressed down, a feedback device is triggered to work. The feedback device drives the adsorption device to support and constrain the sponge sleeve. At the same time, during subsequent sliding, a negative pressure adsorption force is supplied to the adsorption device through a sensing device. Thus, when the high-density sponge sleeve rolls, the negative pressure adsorption force adsorbs the ultra-thin copper foil onto its outer surface for uniform winding, so that the ultra-thin copper foil can be uniformly peeled off from the board. 2. When the feedback device in this invention is working, pressing the arc-shaped cover and roller downwards will cause the guide plate to slide downwards synchronously. Since the cylindrical tube and the sliding plate are fixed to each other, the conical plate will slide upwards synchronously inside the adjustment cavity when the guide plate slides downwards, thereby pushing the cylindrical rod towards the roller. At this time, since the conical plate slides upwards relative to the cylindrical seat, the bottom of the conical plate separates from the annular sealing gasket, releasing the closure of the throttling orifice, thereby transmitting negative pressure adsorption force through the throttling orifice. 3. When the sensing device is working in this invention, when the slide plate slides along the slide groove, after the limiting block slides to contact one end of the rectangular plate, the inclined surface of one end of the limiting block contacts and presses against the inclined surface of one end of the rectangular plate, thereby pushing the rectangular plate into the gas equalization cavity. At this time, one end of the rectangular plate is located inside the groove, and the vertical end of the T-shaped air channel is connected to the strip opening. The other end of the rectangular plate extends into the gas equalization cavity, and both horizontal ends of the T-shaped air channel are connected to the gas equalization cavity. The negative pressure adsorption force inside the gas equalization cavity can be transmitted to the inside of the strip opening through the T-shaped air channel, and then flow to the connecting port and the inside of the cylindrical tube. 4. When the adsorption device of the present invention is working, when the cylindrical rod is pushed towards the roller, the push plate is pushed towards the outside of the roller through the sliding engagement of the locking channel and the locking block, so that the arc plate contacts the low-density sponge sleeve inside the high-density sponge sleeve, pressing the low-density sponge sleeve, thereby limiting the sponge sleeve on the outer surface of the roller. At the same time, the bent air channel and the guide air channel are connected at one end, and the negative pressure adsorption force is transmitted to the inside of the arc cavity through the guide air channel and the bent air channel, and finally transmitted to multiple side air channels and suction holes. Through the suction holes, the external airflow can be adsorbed into the inside of the high-density sponge sleeve. Attached Figure Description

[0015] Figure 1 This invention provides a three-dimensional structural diagram of one side of a copper foil lamination auxiliary device for printed circuit board production; Figure 2 This invention provides a three-dimensional structural diagram of another side of a copper foil lamination auxiliary device for printed circuit board production. Figure 3 This invention provides a partial cross-sectional perspective view of a three-dimensional structure of a copper foil lamination auxiliary device for printed circuit board production. Figure 4 This invention provides a top-view three-dimensional structural diagram of the platform box in an auxiliary device for copper foil lamination in printed circuit board production. Figure 5 This invention provides a partial cross-sectional perspective view of the other side of a copper foil lamination auxiliary device for printed circuit board production. Figure 6 This invention provides a cross-sectional three-dimensional structural diagram of the slide plate and roller in a copper foil lamination auxiliary device for printed circuit board production; Figure 7 This invention provides a side-view three-dimensional structural diagram of the sliding plate in a copper foil lamination auxiliary device for printed circuit board production; Figure 8 For the present invention Figure 3 A magnified view of a portion of point A in the middle; Figure 9 For the present invention Figure 5 A magnified view of a portion of point B in the middle; Figure 10 For the present invention Figure 6 A magnified view of a portion of point C.

[0016] In the diagram: 1. Platform box; 2. Front door; 3. Control button; 4. Reciprocating chamber; 5. Suction hole; 6. Slide groove; 7. Slide plate; 8. Guide plate; 9. Arc-shaped cover; 10. Roller; 11. High-density sponge sleeve; 12. Low-density sponge sleeve; 13. Cylindrical seat; 14. Snap ring; 15. Side opening; 16. Pulley; 17. Limiting block; 18. Groove; 19. Strip opening; 20. L-shaped slide; 21. Limiting groove; 22. Air distribution chamber; 23. Rectangular opening; 24. Side groove; 25. Spring plate; 26. Rectangular plate; 27. T-shaped... 28. Airway; 29. ​​Connecting port; 30. Cylindrical tube; 31. Inner cavity; 32. Support spring; 33. Adjustment cavity; 34. Conical plate; 35. Throttling orifice; 36. Annular sealing gasket; 37. Through port; 38. Annular cavity; 49. Air guide channel; 40. Cylindrical rod; 41. Annular plate; 42. Return spring; 43. Cylindrical cavity; 44. Locking channel; 45. Arc groove; 46. Arc plate; 47. Side airway; 48. Intake port; 49. Arc cavity; 50. Bent airway; 51. Locking block; 52. Push plate; 53. Limiting channel. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-10 The present invention provides a technical solution: a copper foil pressing auxiliary device for printed circuit board production, including a platform box 1, an air equalization chamber 22 is provided inside the platform box 1 near one side edge, a plurality of suction holes 5 are provided at equal intervals on the top of the platform box 1, penetrating into the air equalization chamber 22, a sliding groove 6 is provided on the top of the platform box 1 near the rear side edge, and a sliding plate 7 is slidably arranged inside the sliding groove 6. The skateboard 7 has an inner cavity 30 inside, and a guide plate 8 is installed inside the inner cavity 30. The top of the guide plate 8 slides through to the top of the skateboard 7. A cylindrical base 13 is fixed to the top of the skateboard 7. An adsorption device is installed on the cylindrical base 13. A sensing device is installed inside the slide groove 6. A feedback device is installed inside the skateboard 7. A front door 2 is installed on the front side of the platform box 1 near the two side edges. Multiple control buttons 3 are installed on the corner of the front side of the platform box 1 near the top. An arc-shaped cover 9 is installed above the top of the cylindrical base 13. The rear side of the arc-shaped cover 9 is fixed to the top of the cylindrical base 13.

[0019] The effect achieved is as follows: the plate with ultra-thin copper foil is placed on top of multiple suction holes 5, so that the multiple suction holes 5 are located at the bottom of the plate. They are connected to the gas equalization chamber 22 through an external pipe, so that the negative pressure adsorption force generated by the external vacuum generator can be transferred to the gas equalization chamber 22. Then, the plate is adsorbed and fixed on the top of the platform box 1. The sponge sleeve is put on the outer surface of the roller 10. Then, the arc-shaped cover 9 is held and pressed down along with the roller 10. When pressed down, the feedback device is triggered to work. The feedback device drives the adsorption device to support and constrain the sponge sleeve. At the same time, during subsequent sliding, the sensor device supplies negative pressure adsorption force to the adsorption device. Thus, when the high-density sponge sleeve 11 rolls, the negative pressure adsorption force adsorbs the ultra-thin copper foil to its outer surface for uniform winding, so that the ultra-thin copper foil can be uniformly peeled off from the plate.

[0020] like Figure 1 , Figure 2 , Figure 6 , Figure 9 and Figure 10 As shown, the adsorption device includes a roller 10, an annular cavity 37 is provided at one end of the roller 10, a retaining ring 14 is fixed on one side of the cylindrical seat 13, the retaining ring 14 is rotated and engaged inside the annular cavity 37, an adjustment cavity 32 is provided inside the cylindrical seat 13, a cylindrical cavity 42 is provided inside the roller 10, one end of the cylindrical cavity 42 extends into the adjustment cavity 32, a plurality of arc-shaped grooves 44 are provided at equal intervals along the circumferential direction on the outer surface of the roller 10, a limiting channel 52 extending into the cylindrical cavity 42 is provided on the bottom surface of the plurality of arc-shaped grooves 44, and an air guide channel 38 extending into the annular cavity 37 is provided on one side of the plurality of limiting channels 52, and a through port 36 is provided on one side of the adjustment cavity 32 near the top edge, one end of the through port 36 extends into the outside of the cylindrical seat 13 and is located inside the retaining ring 14, and one end of the through port 36 is connected to the annular cavity 37. Each of the multiple arc-shaped grooves 44 has an arc-shaped plate 45 inside. Push plates 51 are slidably arranged between the inner walls of the multiple limiting channels 52. The tops of the multiple push plates 51 are fixed to the bottom of the arc-shaped plate 45, and the bottoms of the multiple push plates 51 extend into the cylindrical cavity 42. A locking block 50 is fixed to the bottom of each of the multiple push plates 51. Each of the multiple arc-shaped plates 45 has an arc-shaped cavity 48 inside. Multiple side air passages 46 are opened on both sides of each of the multiple arc-shaped cavities 48. Multiple suction holes 47, penetrating to the top of the arc-shaped plate 45, are equidistantly opened on the top surface of each of the multiple side air passages 46. A bent air passage 49 is opened on one side of each of the multiple push plates 51. One end of each bent air passage 49 penetrates into the arc-shaped cavity 48. One end is located below one end of the air guide 38. A reciprocating cavity 4 is opened between the inner walls of the cylindrical cavity 42. A cylindrical rod 39 is slidably arranged between the inner walls of the cylindrical cavity 42. Both ends of the cylindrical rod 39 are conical. One end of the cylindrical rod 39 extends into the interior of the adjustment cavity 32. Multiple slots 43 are equidistantly opened on the outer surface of the cylindrical rod 39 near the edge of the other end. Multiple locking blocks 50 are correspondingly slidably locked into the slots 43. An annular plate 40 is fixed inside the reciprocating cavity 4 on the outer surface of the cylindrical rod 39. A return spring 41 is fixed between one side of the annular plate 40 and the inner wall of the reciprocating cavity 4. A low-density sponge sleeve 12 is fitted on the outer surface of the roller 10. A high-density sponge sleeve 11 is provided on the outer surface of the low-density sponge sleeve 12.

[0021] The effect achieved is that when the cylindrical rod 39 is pushed towards the roller 10 by the conical plate 33, the multiple locking channels 43 set on the conical surface of one end of the cylindrical rod 39 slide and engage with the locking block 50, so that the push plate 51 can be pushed outward of the roller 10. When the push plate 51 slides outward, it will drive the arc plate 45 to slide outward of the arc groove 44, so that it contacts the low-density sponge sleeve 12 inside the high-density sponge sleeve 11, pressing the low-density sponge sleeve 12, thereby limiting the sponge sleeve to the outer surface of the roller 10. At the same time, when the push plate 51 slides, one end of the bent air passage 49 on the push plate 51 slides to the position opposite to one end of the air guide passage 38. At this time, the negative pressure adsorption force transmitted through the cylindrical tube 29 is transmitted to the annular cavity 37 through the through-hole 36 in the regulating cavity 32, and then to the inside of the arc-shaped cavity 48 through the air guide 38 and the bent air passage 49. Finally, it is transmitted to multiple side air passages 46 and air intake holes 47. Through the air intake holes 47, the external airflow can be adsorbed into the high-density sponge sleeve 11. After the outer surface of the high-density sponge sleeve 11 comes into contact with the ultra-thin copper foil on the board, the adsorption force of the air intake holes 47 can adsorb the ultra-thin copper foil onto the outer surface of the high-density sponge sleeve 11, which makes it easier to peel the ultra-thin copper foil off the board in the future, so that the force distribution of the ultra-thin copper foil is uniform and prevents it from falling off.

[0022] like Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the sensing device includes two limiting blocks 17, which are fixed to the outer surfaces of the two sides of the slide plate 7 near the bottom edge. Limiting grooves 21 are opened on the inner walls of both sides of the slide groove 6 near the bottom edge. The two limiting blocks 17 are slidably and sealed inside the limiting grooves 21. Multiple rectangular openings 23 are equidistantly opened on the bottom surface of the limiting groove 21 on the side near the gas equalization chamber 22. The multiple rectangular openings 23 penetrate into the gas equalization chamber 22. Side grooves 24 are opened on the inner walls of the multiple rectangular openings 23. Rectangular plates 26 are slidably arranged between the inner walls of the multiple rectangular openings 23. Spring plates 25 are arranged inside the multiple side grooves 24. One end of the multiple spring plates 25 is engaged on the outer surface of the rectangular plate 26. Each of the rectangular plates 26 has a T-shaped air passage 27 inside. The vertical end of the T-shaped air passage 27 extends to one end of the rectangular plate 26 and is located in the limiting groove 21. The horizontal ends of the T-shaped air passage 27 extend to the outer surface of the rectangular plate 26 and are located at the edge of the other end. The horizontal ends of the T-shaped air passage 27 slide and seal against the inner walls of the rectangular opening 23 on both sides. One of the limiting blocks 17 has a groove 18 on one side. The bottom surface of the groove 18 has a strip-shaped opening 19. The bottom surface of the strip-shaped opening 19 has a connecting opening 28 in the middle. Both ends of the limiting block 17 are inclined. Both sides of one end of the rectangular plate 26 are inclined.

[0023] The effect achieved is that when the slide plate 7 slides along the slide groove 6, after the limiting block 17 slides to contact one end of the rectangular plate 26, the inclined surface of one end of the limiting block 17 contacts and presses against the inclined surface of one end of the rectangular plate 26, thereby pushing the rectangular plate 26 into the air equalization chamber 22. At this time, one end of the rectangular plate 26 is located inside the groove 18, and the vertical end of the T-shaped air channel 27 is connected to the strip opening 19. The other end of the rectangular plate 26 extends into the air equalization chamber 22, and both horizontal ends of the T-shaped air channel 27 are connected to the air equalization chamber 22. The negative pressure adsorption force inside the air equalization chamber 22 can be transmitted to the inside of the strip opening 19 through the T-shaped air channel 27, and then flow to the connecting port 28 and the cylindrical tube 29.

[0024] like Figure 5 , Figure 6 , Figure 7 and Figure 9As shown, the feedback device includes a cylindrical tube 29, which is fixed to the bottom surface of the inner cavity 30. The top of the cylindrical tube 29 slides through into the regulating cavity 32. A conical plate 33 is connected to the top of the cylindrical tube 29. Multiple throttling holes 34, penetrating into the cylindrical tube 29, are equidistantly opened at the bottom of the conical plate 33. An annular sealing gasket 35 is embedded in the bottom surface of the regulating cavity 32. The bottom of the conical plate 33 and the top of the annular sealing gasket 35 are in contact with each other. The top conical surface of the conical plate 33 is in contact with the conical surface of one end of the cylindrical rod 39. The bottom of the guide plate 8... A support spring 31 is fixed between the inner bottom surface of the adjustment cavity 32 and the inner wall of the inner cavity 30. Side openings 15 are provided on both sides of the inner wall of the inner cavity 30, extending to the outside of the slide plate 7. A lever 16 is slidably arranged between the inner walls of the two side openings 15. L-shaped slides 20 are provided on both sides of the inner wall of the slide groove 6 near the top edge. One end of the two L-shaped slides 20 extends to the top of the platform box 1. One end of the two levers 16 extends into the interior of the L-shaped slides 20 and is located at the top edge of the platform box 1. One end of the connecting port 28 extends to the bottom of the cylindrical tube 29.

[0025] The effect achieved is that when the arc-shaped cover 9 and the roller 10 are pressed down, the guide plate 8 will slide down synchronously. When the guide plate 8 slides down, the paddle block 16 slides from the top to the bottom along the inside of the side opening 15. One end of the paddle block 16 will also slide from the vertical slide of the L-shaped slide 20 to the horizontal slide inside the L-shaped slide 20. When the slide plate 7 slides along the slide groove 6, the paddle block 16 and the L-shaped slide 20 are engaged to guide it, making its sliding more stable. At the same time, since the cylindrical tube 29 and the slide plate 7 are fixed to each other, when the guide plate 8 slides down, the conical plate 33 will slide up synchronously inside the adjustment cavity 32, thereby pushing the cylindrical rod 39 toward the roller 10. At this time, since the conical plate 33 slides up relative to the cylindrical seat 13, the bottom of the conical plate 33 separates from the annular sealing gasket 35, releasing the closure of the throttling hole 34, thereby transmitting negative pressure adsorption force through the throttling hole 34.

[0026] Working principle: When the arc-shaped cover 9 and roller 10 are pressed down, the guide plate 8 will slide down synchronously. When the guide plate 8 slides down, the lever 16 slides from the top to the bottom along the inside of the side opening 15. One end of the lever 16 will also slide from the vertical slide of the L-shaped slide 20 to the horizontal slide inside the L-shaped slide 20. When the slide plate 7 slides along the slide groove 6, the lever 16 and the L-shaped slide 20 are mutually engaged to guide it, making its sliding more stable. At the same time, since the cylindrical tube 29 and the slide plate 7 are fixed to each other, when the guide plate 8 slides down, the conical plate 33 will slide up synchronously inside the adjustment cavity 32, thereby pushing the cylindrical rod 39 towards the roller 10. At this time, because the conical plate 33 3. The conical plate 33 slides upward relative to the cylindrical seat 13, so the bottom of the conical plate 33 separates from the annular sealing gasket 35, releasing the seal on the throttling orifice 34. This allows the negative pressure adsorption force to be transmitted through the throttling orifice 34. When the sliding plate 7 slides along the groove 6, after the limiting block 17 slides to contact one end of the rectangular plate 26, the inclined surface of one end of the limiting block 17 contacts and presses against the inclined surface of one end of the rectangular plate 26, thus pushing the rectangular plate 26 into the gas equalization chamber 22. At this time, one end of the rectangular plate 26 is located inside the groove 18, and the vertical end of the T-shaped air passage 27 is connected to the strip-shaped opening 19. The other end of the rectangular plate 26 extends into the gas equalization chamber 22, and both horizontal ends of the T-shaped air passage 27 are connected to the interior of the gas equalization chamber 22. The negative pressure adsorption force inside the uniform air chamber 22 can be transmitted to the inside of the strip-shaped opening 19 through the T-shaped air passage 27, and then flow to the inside of the connecting port 28 and the cylindrical tube 29. When the cylindrical rod 39 is pushed towards the roller 10 by the conical plate 33, the multiple locking channels 43 set on one end of the cylindrical rod 39 slide and engage with the locking block 50, so that it can push the push plate 51 to the outside of the roller 10. When the push plate 51 slides outward, it will drive the arc plate 45 to slide outward of the arc groove 44, so that it contacts the low-density sponge sleeve 12 inside the high-density sponge sleeve 11, pressing the low-density sponge sleeve 12, thereby limiting the sponge sleeve to the outer surface of the roller 10. At the same time, when the push plate 51 slides, the space on the push plate 51 One end of the bent airway 49 slides to the position opposite to one end of the air guide 38. At this time, the negative pressure adsorption force transmitted through the cylindrical tube 29 is transmitted to the annular cavity 37 through the through-hole 36 in the regulating cavity 32, and then to the interior of the arc-shaped cavity 48 through the air guide 38 and the bent airway 49. Finally, it is transmitted to multiple side airways 46 and suction holes 47. Through the suction holes 47, the external airflow can be adsorbed into the interior of the high-density sponge sleeve 11. After the outer surface of the high-density sponge sleeve 11 comes into contact with the ultra-thin copper foil on the board, the adsorption force of the suction holes 47 can adsorb the ultra-thin copper foil onto the outer surface of the high-density sponge sleeve 11, which makes it easier to peel the ultra-thin copper foil off the board in the future, so that the force distribution of the ultra-thin copper foil is uniform and prevents it from falling off.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary device for copper foil lamination in printed circuit board production, characterized in that, The platform box (1) includes a gas equalization chamber (22) with a gas equalization chamber (22) near one side edge inside the platform box (1). Multiple suction holes (5) that penetrate into the gas equalization chamber (22) are equally spaced on the top of the platform box (1). A sliding groove (6) is provided on the top of the platform box (1) near the rear side edge. A sliding plate (7) is slidably arranged inside the sliding groove (6). The slide plate (7) has an inner cavity (30) inside, and a guide plate (8) is provided inside the inner cavity (30). The top of the guide plate (8) slides through to the top of the slide plate (7). A cylindrical seat (13) is fixed on the top of the slide plate (7). An adsorption device is provided on the cylindrical seat (13). A sensing device is provided inside the slide groove (6). A feedback device is provided inside the slide plate (7).

2. The copper foil lamination auxiliary device for printed circuit board production according to claim 1, characterized in that: The platform box (1) is provided with a front door (2) near the two sides of the front side. Multiple control buttons (3) are provided at the corner of the front side of the platform box (1) near the top. An arc-shaped cover (9) is provided above the top of the cylindrical base (13). The rear side of the arc-shaped cover (9) is fixed to the top of the cylindrical base (13).

3. The copper foil lamination auxiliary device for printed circuit board production according to claim 1, characterized in that: The adsorption device includes a roller (10), one end of which has an annular cavity (37). A retaining ring (14) is fixed to one side of the cylindrical seat (13), and the retaining ring (14) is rotatably engaged inside the annular cavity (37). An adjustment cavity (32) is provided inside the cylindrical seat (13), and a cylindrical cavity (42) is provided inside the roller (10). One end of the cylindrical cavity (42) extends into the adjustment cavity (32). Multiple arc-shaped sections are equidistantly arranged along the circumferential direction on the outer surface of the roller (10). The inner bottom surface of the multiple arc-shaped grooves (44) is provided with a limiting channel (52) that extends into the cylindrical cavity (42). One side of the multiple limiting channels (52) is provided with a guide channel (38) that extends into the annular cavity (37). A through port (36) is provided on one side of the regulating cavity (32) near the top edge. One end of the through port (36) extends into the outer side of the cylindrical seat (13) and is located inside the retaining ring (14). One end of the through port (36) is connected to the annular cavity (37).

4. The copper foil lamination auxiliary device for printed circuit board production according to claim 3, characterized in that: Each of the multiple arc-shaped grooves (44) has an arc-shaped plate (45) inside. Each of the multiple limiting channels (52) has a push plate (51) slidably disposed between the inner walls. The tops of the multiple push plates (51) are fixed to the bottoms of the arc-shaped plates (45). The bottoms of the multiple push plates (51) extend into the cylindrical cavity (42). Each of the multiple push plates (51) has a locking block (50) fixed to its bottom. Each of the multiple arc-shaped plates (45) has an arc-shaped cavity (48) inside. Multiple side air passages (46) are provided on both sides of the multiple arc-shaped cavities (48). Multiple air intake holes (47) that penetrate to the top of the arc-shaped plate (45) are provided at equal intervals on the inner top surface of the multiple side air passages (46). A bent air passage (49) is provided on one side of the multiple push plates (51). One end of the multiple bent air passages (49) penetrates into the interior of the arc-shaped cavity (48). One end of the multiple bent air passages (49) is located below one end of the air guide passage (38).

5. The copper foil lamination auxiliary device for printed circuit board production according to claim 4, characterized in that: A reciprocating cavity (4) is provided between the inner walls of the cylindrical cavity (42). A cylindrical rod (39) is slidably provided between the inner walls of the cylindrical cavity (42). Both ends of the cylindrical rod (39) are conical. One end of the cylindrical rod (39) extends into the adjustment cavity (32). Multiple slots (43) are equidistantly provided on the outer surface of the cylindrical rod (39) near the edge of the other end. Multiple slot blocks (50) are slidably engaged in the slots (43). An annular plate (40) is fixed on the outer surface of the cylindrical rod (39) inside the reciprocating cavity (4). A return spring (41) is fixed between one side of the annular plate (40) and the inner wall of the reciprocating cavity (4). A low-density sponge sleeve (12) is fitted on the outer surface of the roller (10). A high-density sponge sleeve (11) is provided on the outer surface of the low-density sponge sleeve (12).

6. The copper foil lamination auxiliary device for printed circuit board production according to claim 5, characterized in that: The sensing device includes two limiting blocks (17), which are fixed to the outer surfaces of the two sides of the slide plate (7) near the bottom edge. Limiting grooves (21) are opened on the inner walls of both sides of the slide groove (6) near the bottom edge. The two limiting blocks (17) are slidably sealed and engaged in the limiting grooves (21). Multiple rectangular openings (23) are equidistantly opened on the bottom surface of the limiting groove (21) near the gas equalization chamber (22). The multiple rectangular openings (23) penetrate into the gas equalization chamber (22). Side grooves (24) are opened on the inner walls of both sides of the multiple rectangular openings (23). Rectangular plates (26) are slidably arranged between the inner walls of the multiple rectangular openings (23). Spring plates (25) are arranged inside the multiple side grooves (24). One end of the multiple spring plates (25) is engaged on the outer surface of the rectangular plate (26).

7. The copper foil lamination auxiliary device for printed circuit board production according to claim 6, characterized in that: Each of the rectangular plates (26) has a T-shaped air passage (27) inside. The vertical end of the T-shaped air passage (27) extends through one end of the rectangular plate (26) and is located in the limiting groove (21). The horizontal ends of the T-shaped air passage (27) extend through the outer surface of the rectangular plate (26) and are located at the edge of the other end. The horizontal ends of the T-shaped air passage (27) slide and seal against the inner walls of the rectangular opening (23) on both sides.

8. The copper foil lamination auxiliary device for printed circuit board production according to claim 7, characterized in that: One of the limiting blocks (17) has a groove (18) on one side, and a strip-shaped opening (19) is provided on the bottom surface of the groove (18). A connecting opening (28) is provided in the middle of the bottom surface of the strip-shaped opening (19). Both ends of the limiting block (17) are inclined, and both sides of one end of the rectangular plate (26) are inclined.

9. The copper foil lamination auxiliary device for printed circuit board production according to claim 8, characterized in that: The feedback device includes a cylindrical tube (29), which is fixed to the bottom surface of the inner cavity (30). The top of the cylindrical tube (29) slides through into the adjustment cavity (32). The top of the cylindrical tube (29) is connected to a conical plate (33). The bottom of the conical plate (33) is provided with multiple throttling holes (34) that penetrate into the cylindrical tube (29) at equal intervals. The bottom surface of the adjustment cavity (32) is embedded with an annular sealing gasket (35). The bottom of the conical plate (33) and the top of the annular sealing gasket (35) are in contact with each other. The top conical surface of the conical plate (33) is in contact with the conical surface of one end of the cylindrical rod (39).

10. The copper foil lamination auxiliary device for printed circuit board production according to claim 9, characterized in that: A support spring (31) is fixed between the bottom of the guide plate (8) and the inner bottom surface of the adjustment cavity (32). The inner walls on both sides of the inner cavity (30) are provided with side openings (15) that extend to the outside of the slide plate (7). A lever (16) is slidably arranged between the inner walls on both sides of the two side openings (15). An L-shaped slide (20) is provided on the inner walls on both sides of the slide groove (6) near the top edge. One end of the two L-shaped slides (20) extends to the top of the platform box (1). One end of the two levers (16) extends into the interior of the L-shaped slide (20) and is located at the top edge of the platform box (1). One end of the connecting port (28) extends to the bottom of the cylindrical tube (29).

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