Circuit board water-soluble film pressing equipment with cooling function

Abstract

The utility model discloses a circuit board water-soluble film pressing device with a cooling function. The circuit board water-soluble film pressing device comprises a pretreatment machine, a cooling bin and a film pressing bin. The PCB / FPC board cooling device has the beneficial effects that the cooling bin and the water coating wheel are adopted, the inner top and the inner bottom of the cooling bin are both provided with the cooling discs, low-temperature cooling liquid is introduced into the refrigeration pipe, blowing is carried out through the fan, air passes through the low-temperature refrigeration pipe to generate cold air, the cold air is blown to the PCB / FPC board processed by the pretreatment machine, and the PCB / FPC board is uniformly and efficiently cooled; the problems of bubbles caused by too high temperature before film pressing of products, open circuits and notches formed after etching and the like can be reduced, the yield is improved, meanwhile, the water coating sleeve is wrapped outside the water coating wheel, the water coating sleeve is made of an EVA material, it is ensured that the water coating wheel is kept wet, does not become hard and does not deform, the water coating efficiency and the film pressing efficiency are further improved, and meanwhile the water coating efficiency and the film pressing efficiency are improved. The stable-pressure water supply machine is adopted for supplying water, stable-pressure and balanced water supply is ensured, the water coating stability is further improved, and the working efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB / FPC board production lamination technology, specifically, to a water-soluble lamination equipment for circuit boards with built-in cooling function. Background Technology

[0002] Based on the trend of PCB / FPC products towards miniaturization and high integration, highly integrated and dense circuitry is required per unit area to meet design requirements. Circuitry is becoming increasingly dense, with smaller spacing and pads, necessitating multi-layer circuitry. This requires multiple electroplating and lamination processes. The more complex the process, the greater the probability of board surface dents and scratches. These dents and scratches directly impact the quality defect rate of open circuits and gaps. During the circuit pattern transfer process, lamination is a crucial step. Traditional lamination methods often result in gaps at dent and scratch locations, leading to open circuits and gaps during subsequent etching. Currently, wet lamination processes suffer from unstable water supply and PU-made coating wheels, resulting in poor coating performance. Furthermore, the coating wheels are prone to cracking and hardening, failing to achieve optimal dry film filling at dent and scratch locations. Additionally, current methods lack front-end cooling devices, leading to excessively high board temperatures and the formation of lamination air bubbles, causing gaps and resulting in open circuits and gaps.

[0003] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a circuit board water-soluble lamination equipment with built-in cooling function, which has the advantages of improving yield, operational stability and efficiency, and increasing production flexibility, thereby solving the problems mentioned in the background technology.

[0005] To achieve the aforementioned advantages of improved yield, operational stability, efficiency, and increased production flexibility, the specific technical solution adopted by this utility model is as follows:

[0006] A circuit board water-soluble laminating device with built-in cooling function includes a pretreatment machine, a cooling chamber, and a laminating chamber. The cooling chamber is installed between the pretreatment machine and the laminating chamber, and cooling plates are installed on the top and bottom surfaces of the cooling chamber. Cooling pipes are installed inside the cooling plates. A fan is fixedly installed inside the fan and the top and bottom surfaces of the cooling chamber. Rotating wheels are rotatably connected inside the cooling chamber and the laminating chamber. A water coating wheel is rotatably connected inside the laminating chamber, and a water spray frame is installed on the outside of the water coating wheel. A pressure-stabilizing water supply machine is fixedly installed on the top surface of the laminating chamber, and the pressure-stabilizing water supply machine is connected to the water spray frame through a water supply pipe. A water suction roller is rotatably connected inside the other end of the laminating chamber. A hot pressing roller is rotatably connected between the water coating roller and the water suction roller inside the laminating chamber, and a separating roller, a PE film winding roller, and a dry film roll are rotatably connected to the outside of the hot pressing roller.

[0007] Furthermore, the surface of the cooling plate is provided with air outlets, and the air outlets are arranged opposite each other.

[0008] Furthermore, a water-coating sleeve is fixedly fitted to the outside of the water-coating wheel, and rollers are fixedly connected to both ends of the water-coating wheel, with a slot provided at the other end of the roller.

[0009] Furthermore, a drive shaft is rotatably connected through the surface of the pressing chamber corresponding to the position of the roller shaft, and a clamping head is opened at the other end of the drive shaft corresponding to the position of the clamping slot. The clamping head is inserted into the clamping slot and fixedly connected to the clamping slot by fixing bolts.

[0010] Furthermore, absorbent cotton is fixedly sleeved on the surface of the absorbent roller, and two sets of absorbent rollers are arranged vertically.

[0011] Furthermore, there are two sets of water-coating wheels arranged vertically, and the water-coating wheels are arranged coaxially with the roller shaft.

[0012] Furthermore, the rotating wheels are distributed vertically, and multiple sets of rotating wheels are arranged.

[0013] Furthermore, multiple sets of fans are arranged, and the fans are distributed at equal intervals, with low-temperature coolant flowing inside the refrigeration pipe.

[0014] Compared with the prior art, this utility model provides a circuit board water-soluble lamination device with built-in cooling function, which has the following beneficial effects:

[0015] (1) This utility model adopts a cooling chamber and a water coating wheel. Cooling plates are installed at the top and bottom of the cooling chamber. Low-temperature coolant is introduced into the cooling pipe and blown by a fan. The air passes through the low-temperature cooling pipe and generates cold air, which is blown onto the PCB / FPC board after the pre-processing machine. This provides uniform and efficient cooling to the PCB / FPC board, which can reduce the bubbles caused by excessive temperature before the product is laminated, and prevent defects such as open circuits and gaps after etching, thereby improving the yield. At the same time, the water coating wheel is wrapped with a water coating sleeve made of EVA material to ensure that the water coating wheel remains moist, does not harden, and does not deform, further improving the water coating efficiency and lamination efficiency. In addition, this device uses a pressure-stabilizing water supply machine to supply water, ensuring stable pressure and balanced water supply, further improving the water coating stability and work efficiency.

[0016] (2) This utility model adopts a water coating roller that is easy to disassemble. The roller shaft surfaces at both ends of the water coating roller are provided with slots. One end of the drive shaft connected to the roller shaft is provided with a locking block. The locking block is inserted into the slot and connected by fixing bolts. The workers can quickly remove the water coating roller by removing the bolts. It can be quickly disassembled and maintained, realize the free conversion between dry and water-soluble methods, and improve the flexibility of production. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the internal structure of a circuit board water-soluble laminating device with built-in cooling function proposed in this utility model;

[0019] Figure 2 This is a front view of a water-soluble laminating device for circuit boards with built-in cooling function proposed in this utility model;

[0020] Figure 3 This is an enlarged view of node A of a water-soluble laminating device for circuit boards with built-in cooling function proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the installation of the water-coating wheel proposed in this utility model.

[0022] In the picture:

[0023] 1. Pretreatment machine; 2. Cooling chamber; 3. Cooling tray; 4. Refrigeration pipe; 5. Air duct; 6. Fan; 7. Film pressing chamber; 8. Pressure stabilizing water supply machine; 9. Water supply pipe; 10. Sprinkler frame; 11. Water coating wheel; 12. Hot press roller; 13. Dry film roll; 14. Separation roller; 15. PE film take-up roller; 16. Rotating wheel; 17. Water suction roller; 18. Air outlet; 19. Water coating jacket; 20. Roller shaft; 21. Slot. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a water-soluble laminating device for circuit boards with built-in cooling function is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a circuit board water-soluble laminating device with built-in cooling function according to an embodiment of the present invention includes a pretreatment machine 1, a cooling chamber 2, and a laminating chamber 7. The cooling chamber 2 is installed between the pretreatment machine 1 and the laminating chamber 7, and cooling plates 3 are installed on both the top and bottom surfaces of the cooling chamber 2. Cooling pipes 4 are installed inside the cooling plates 3. A fan 5 is connected through the top and bottom surfaces of the cooling chamber 2, and a fan 6 is fixedly installed inside the fan 5. Rotary connecting elements are rotatably connected inside the cooling chamber 2 and the laminating chamber 7. A water-coating wheel 11 is rotatably connected inside the film-pressing chamber 7, and a water-spraying frame 10 is installed on the outside of the water-coating wheel 11. The water-spraying frame 10 sprays water towards the water-coating wheel 11. A pressure-stabilizing water supply machine 8 is fixedly installed on the top surface of the film-pressing chamber 7, and the pressure-stabilizing water supply machine 8 is connected to the water-spraying frame 10 through a water supply pipe 9. A water-absorbing roller 17 is rotatably connected inside the other end of the film-pressing chamber 7. A hot-pressing roller 12 is rotatably connected between the water-coating wheel 11 and the water-absorbing roller 17 inside the film-pressing chamber 7, and a separating roller 14 is rotatably connected to the outside of the hot-pressing roller 12. The PE film take-up roller 15 and dry film roll 13 are mounted on the surface of the unwinding shaft. The hot press roller 12, separating roller 14, PE film take-up roller 15, and dry film roll 13 are all common structures in the art and will not be described in detail here. Cooling plates 3 are installed at the top and bottom of the cooling chamber 2. Low-temperature coolant is circulated inside the cooling pipe 4 and blown by the fan 6. The air passing through the low-temperature cooling pipe 4 generates cold air, which is blown onto the PCB / FPC board after it has been processed by the pretreatment machine 1, thus purifying the PCB / FPC board. Uniform and efficient cooling can reduce air bubbles caused by excessively high temperature before product lamination, which can lead to defects such as open circuits and gaps after etching, thus improving the yield rate. At the same time, the water coating wheel 11 is wrapped with a water coating sleeve 19, which is made of EVA material, to ensure that the water coating wheel 11 remains moist, does not harden, and does not deform, further improving the water coating efficiency and lamination efficiency. In addition, this device uses a pressure-stabilizing water supply machine 8 to supply water, ensuring stable pressure and balanced water supply, which further improves the stability of water coating and further improves the working efficiency.

[0027] In one embodiment, the surface of the cooling tray 3 is provided with an air outlet 18, and the air outlets 18 are arranged opposite each other to improve the cooling efficiency of the PCB / FPC board by the cold air.

[0028] In one embodiment, a water-coating sleeve 19 is fixedly sleeved on the outside of the water-coating roller 11, and roller shafts 20 are fixedly connected to both ends of the water-coating roller 11. A slot 21 is provided at the other end of the roller shaft 20. A drive shaft is rotatably connected through the surface of the film pressing chamber 7 corresponding to the position of the roller shaft 20. A clamping head is provided at the other end of the drive shaft corresponding to the position of the slot 21. The clamping head is inserted into the slot 21 and fixedly connected to the slot 21 by a fixing bolt. The operator can quickly remove the water-coating roller by removing the bolt, which can be quickly disassembled and maintained, realize the free conversion between dry and water-soluble methods, and improve the flexibility of production.

[0029] In one embodiment, absorbent cotton is fixedly sleeved on the surface of the absorbent roller 17, and two sets of absorbent rollers 17 are arranged vertically to facilitate water absorption and remove excess moisture from the membrane surface.

[0030] In one embodiment, two sets of water-coating wheels 11 are arranged vertically, and the water-coating wheels 11 are arranged coaxially with the roller shaft 20 to improve the stability of rotation.

[0031] In one embodiment, the rotating wheels 16 are distributed vertically, and multiple sets of rotating wheels 16 are arranged. The PCB / FPC board moves between the rotating wheels 16, which is a common conveying structure in the art.

[0032] In one embodiment, multiple sets of fans 6 are arranged and distributed at equal intervals. Low-temperature coolant is circulated inside the refrigeration pipe 4. The low-temperature coolant can be provided by an industrial chiller for circulating cooling, which is a common cooling structure in the art and is not shown in the figure.

[0033] Working principle:

[0034] Cooling chamber 2 is equipped with cooling plates 3 at both the top and bottom. Low-temperature coolant flows through the cooling pipes 4, and is blown by a fan 6. The air passing through the low-temperature cooling pipes 4 generates cold air, which is then blown onto the PCB / FPC board processed by the pre-processing machine 1. This provides uniform and efficient cooling to the PCB / FPC board, reducing defects such as air bubbles caused by excessively high temperatures before lamination, and preventing open circuits and gaps after etching, thus improving yield. Simultaneously, the coating wheel 11 is encased in a coating sleeve 19 made of EVA material to ensure the coating wheel 11 remains moist and does not condense. It is hard and does not deform, further improving the efficiency of water coating and film pressing. At the same time, this device uses a pressure-stabilizing water supply machine 8 to ensure stable and balanced water supply, which further improves the stability of water coating and further improves work efficiency. Meanwhile, the roller shafts 20 at both ends of the water coating roller have slots 21. One end of the drive shaft connected to the roller shaft 20 has a locking block. The locking block is inserted into the slot 21 and connected by fixing bolts. The operator can quickly remove the water coating roller by removing the bolts, which can be quickly disassembled and maintained. It can freely switch between dry and water-soluble methods, improving the flexibility of production.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water-soluble laminating device for circuit boards with built-in cooling function, characterized in that, The system includes a pretreatment machine (1), a cooling chamber (2), and a film pressing chamber (7). The cooling chamber (2) is installed between the pretreatment machine (1) and the film pressing chamber (7). A cooling plate (3) is installed on both the top and bottom surfaces of the cooling chamber (2), and a cooling pipe (4) is installed inside the cooling plate (3). A wind duct (5) is connected through the top and bottom surfaces of the cooling chamber (2), and a fan (6) is fixedly installed inside the wind duct (5). Rotating wheels (16) are rotatably connected inside both the cooling chamber (2) and the film pressing chamber (7). A water coating device is rotatably connected inside the film pressing chamber (7). The coating wheel (11) is equipped with a water sprayer (10) on the outside of the coating wheel (11), and a pressure stabilizing water supply machine (8) is fixedly installed on the top surface of the film pressing chamber (7). The pressure stabilizing water supply machine (8) is connected to the water sprayer (10) through the water supply pipe (9). A water suction roller (17) is rotatably connected inside the other end of the film pressing chamber (7). A hot pressing roller (12) is rotatably connected between the coating wheel (11) and the water suction roller (17) inside the film pressing chamber (7). A separation roller (14), a PE film winding roller (15), and a dry film roll (13) are rotatably connected outside the hot pressing roller (12).

2. The circuit board water-soluble laminating equipment with built-in cooling function according to claim 1, characterized in that, The cooling plate (3) has an air outlet (18) on its surface, and the air outlets (18) are arranged opposite each other.

3. The circuit board water-soluble laminating equipment with built-in cooling function according to claim 1, characterized in that, The water coating wheel (11) is fixedly sleeved with a water coating sleeve (19), and the two ends of the water coating wheel (11) are fixedly connected with roller shafts (20), and the other end of the roller shafts (20) is provided with a slot (21).

4. The circuit board water-soluble laminating equipment with built-in cooling function according to claim 1, characterized in that, The surface of the pressing chamber (7) is rotatably connected to the roller shaft (20), and the other end of the drive shaft is provided with a clamping head at the position corresponding to the slot (21). The clamping head is inserted into the slot (21) and fixedly connected to the slot (21) by fixing bolts.

5. The circuit board water-soluble lamination equipment with built-in cooling function according to claim 1, characterized in that, The surface of the water-absorbing roller (17) is fixedly fitted with water-absorbing cotton, and two sets of water-absorbing rollers (17) are arranged vertically.

6. The circuit board water-soluble laminating equipment with built-in cooling function according to claim 3, characterized in that, The water coating wheel (11) is arranged in two sets, one above the other, and the water coating wheel (11) is arranged coaxially with the roller (20).

7. The circuit board water-soluble laminating equipment with built-in cooling function according to claim 1, characterized in that, The rotating wheels (16) are distributed vertically, and multiple sets of rotating wheels (16) are arranged.

8. The circuit board water-soluble laminating equipment with built-in cooling function according to claim 1, characterized in that, The fan (6) is arranged in multiple groups and the fans (6) are distributed at equal intervals. Low temperature coolant is introduced into the refrigeration pipe (4).

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