Automatic cooling device for ceramic copper clad laminate production

Abstract

The utility model discloses an automatic cooling device for ceramic copper clad laminate production, including cooling bin, deflection roll, outer sheet, feed port and discharge gate. Cooling bin bottom is equipped with dehumidification subassembly, and the outside of feed port is equipped with guide subassembly. Dehumidification subassembly contains drying bin, import pipe, net frame, drying agent drawer, condensing bin and helical tube, and the direct cooling of helical tube is carried out to liquid nitrogen, and the double dehumidification of cooperation drying agent is carried out. The guide subassembly is constituted by boss, rotating shaft, mounting plate and telescopic rubber board, and the feed diversion angle can be adjusted. The device forms gradient cooling channel through deflection roll and partition hole plate, utilizes the air current speed of speed control hole plate adjustment, makes high temperature copper clad plate obtain gradual type cooling. Its beneficial effect lies in: the mode of liquid nitrogen direct cooling helical tube greatly promotes heat exchange efficiency; double dehumidification structure effectively prevents the surface dew of board material; adjustable diversion subassembly ensures that air current organization is optimized.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to an automatic cooling device for the production of ceramic copper-clad substrates. Background Technology

[0002] Publication number CN216804806U discloses a copper-clad laminate cooling device, including a cooling box through which cold air is introduced. The cooling box has an opening for the copper-clad laminate to enter or exit. A blower is also installed inside the cooling box, with its outlet blowing dry air outwards from the opening. By using a blower with its outlet blowing dry air outwards from the opening, air from outside the cooling box can be prevented from entering through the opening, thus reducing condensation formation near the opening. This prevents excessive humidity in the copper-clad laminate due to condensation, thereby reducing the probability of wrinkles in the copper foil and improving the quality of the copper-clad laminate. However, this patent still has the following problems in practical use: The moisture content in the cold air blown in by the above-mentioned device cannot be effectively reduced, which will increase the moisture content inside the cooling box. Moreover, it is impossible to avoid excessive water vapor coming into contact with the copper clad laminate, which will increase the occurrence of water droplets adhering to the surface of the copper clad laminate and affect the quality of the copper clad laminate.

[0003] An automatic cooling device for the production of ceramic copper-clad substrates is proposed to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide an automatic cooling device for the production of ceramic copper-clad laminates, in order to solve the problem that the moisture contained in the cold air blown in the above-mentioned device cannot be effectively reduced, which leads to an increase in the moisture inside the cooling box due to the moisture in the cold air. Moreover, it is impossible to avoid excessive water vapor coming into contact with the copper-clad laminate, which increases the occurrence of water droplets adhering to the surface of the copper-clad laminate and affects the quality of the copper-clad laminate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic cooling device for the production of ceramic copper-clad substrates, comprising a cooling chamber, wherein a plurality of steering rollers for tensioning the ceramic copper-clad substrate are rotatably connected inside the cooling chamber, outer plates are symmetrically fixedly connected to the front and rear sides of the cooling chamber, a feed inlet is provided at the top of one side of the cooling chamber, and a discharge outlet is provided at the bottom of the other side of the cooling chamber; an air outlet is provided at the bottom of the cooling chamber, and the cooling device further includes: A dehumidification component is provided at the bottom of the cooling chamber. A guide component is provided on the outside of the feed inlet. The dehumidification component includes a drying chamber fixed to the bottom of the cooling chamber. The top of the drying chamber is open and corresponds to the air outlet. An air outlet is provided on the bottom surface of the cooling chamber. An inlet pipe is fixedly connected to the bottom of the drying chamber. The inlet pipe is connected to an external air cooler. A wire mesh frame is fixedly connected to the lower part of the drying chamber inside the inlet pipe. A desiccant drawer is slidably inserted into the inside of the wire mesh frame.

[0006] Preferably, a condensation chamber is formed above the mesh frame, and several spiral tubes are fixedly connected inside the condensation chamber. A gas guide pipe is fixedly installed on one side of the condensation chamber, and a pressure relief valve is fixedly connected to the other side of the condensation chamber. A liquid nitrogen tank is fixedly connected to the flange at the end of the gas guide pipe away from the condensation chamber.

[0007] Preferably, each of the steering rollers is provided with a partition bar and a partition plate on both sides. A temperature sensor is fixedly installed on the bottom surface of the partition plate, and a speed control plate is covered on the top surface of the partition plate. An adjustment knob is rotatably connected to one side of the speed control plate. The adjustment knob passes through the outer plate and is threadedly connected to the outer plate.

[0008] Preferably, a temperature sensor is fixedly installed on the bottom surface of the partition plate.

[0009] Preferably, a guide assembly is provided on the outer side of the feed inlet; the guide assembly includes two pairs of upper and lower protrusions symmetrically arranged on the outer side of the feed inlet, a rotating shaft is rotatably connected between the two protrusions in the same pair, damping pads and bolts are symmetrically arranged on both sides of the rotating shaft, the damping pads are movably sleeved on the outside of the rotating shaft, the damping pads are in contact with the inner side of the protrusions, the bolts are threadedly connected to the rotating shaft, the bolts are in contact with the outer side of the damping pads, a mounting plate is fixedly connected to the middle of the rotating shaft, and a telescopic rubber plate is fixedly connected between the two mounting plates.

[0010] Preferably, a lifting frame is provided below the outer side of the feed inlet, and both the lifting frame and the boss are fixed to the outside of the cooling chamber, and the top of the lifting frame is rotatably connected to a lifting roller.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic cooling device for the production of ceramic copper-clad substrates, through the cooling medium formed by the inlet pipe and the spiral pipe, combined with the physical adsorption of the desiccant drawer and the liquid nitrogen low-temperature condensation dual dehumidification mechanism of the condensation chamber, and with the adjustable composite diversion perforated plate, achieves the integrated function of efficient gradient dehumidification and precise airflow control. Its specific contents are as follows: 1. The spiral tube is cooled by the inlet pipe to maintain a low temperature, which, combined with the physical adsorption of the desiccant drawer and the low-temperature condensation of the condensation chamber, achieves gradient dehumidification. The adjusting knob controls the opening and closing of the composite diversion orifice plate via a threaded drive, precisely regulating the airflow speed. Liquid nitrogen is atomized and sprayed through the gas guide pipe, causing a rapid drop in the surface temperature of the spiral tube through phase change heat absorption, prompting water vapor to condense and drip off the tube wall. This component achieves a balance between convenient desiccant replacement and system safety through the pull-out guide rail structure of the mesh frame and the automatic pressure relief function of the pressure relief valve.

[0012] 2. The friction braking effect of the rotating shaft and damping pad enables stepless adjustment of the feed inlet guide angle. The preload of the disc spring assembly is changed by the threaded pressure of the bolts, causing the telescopic rubber plate to elastically deform and form a dynamic sealing barrier. This component utilizes the reverse thread structure at both ends of the rotating shaft to achieve bidirectional synchronous locking, ensuring the mounting plate remains stable after being positioned at any angle and effectively blocking external airflow disturbances. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a schematic diagram of the front cross-section structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the drying chamber; Figure 4 This is a schematic diagram of the installation structure of the speed control orifice plate and the separator orifice plate; Figure 5 This is a schematic diagram of the installation structure of the mounting plate and the telescopic rubber plate. Figure 6 This is a schematic diagram of the wire frame structure.

[0014] In the diagram: 1. Cooling chamber; 101. Turning roller; 102. Outer plate; 103. Feed inlet; 104. Discharge outlet; 2. Dehumidification assembly; 201. Drying chamber; 202. Air outlet; 203. Inlet pipe; 204. Mesh frame; 205. Desiccant drawer; 206. Condensation chamber; 207. Spiral tube; 208. Air guide pipe; 209. Liquid nitrogen tank; 210. Pressure relief valve; 211. Spacer bar; 212. Separator plate; 213. Temperature sensor; 214. Speed ​​control plate; 215. Screw; 3. Guiding assembly; 301. Boss; 302. Rotating shaft; 303. Damping pad; 304. Bolt; 305. Mounting plate; 306. Telescopic rubber plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-6 This utility model provides a technical solution: an automatic cooling device for the production of ceramic copper-clad substrates, comprising a cooling chamber 1, with several steering rollers 101 rotatably connected inside the cooling chamber 1 for tensioning the ceramic copper-clad substrate. Outer plates 102 are symmetrically fixedly connected to the front and rear sides of the cooling chamber 1. A feed inlet 103 is opened at the top of one side of the cooling chamber 1, and a discharge outlet 104 is opened at the bottom of the other side. An air outlet 202 is opened at the bottom of the cooling chamber 1. Cold air enters the cooling chamber 1 from the bottom air outlet 202 and gradually rises, increasing in temperature during heat exchange with the substrate, and finally exits from the feed inlet 103 and the discharge outlet 104, forming a continuous cooling airflow.

[0017] The cooling device also includes a dehumidification component 2, which is located at the bottom of the cooling chamber 1. The dehumidification component 2 includes a drying chamber 201 fixed to the bottom of the cooling chamber 1. The top of the drying chamber 201 is open and corresponds to the air outlet. An inlet pipe 203 is fixedly connected to the bottom of the drying chamber 201 and is connected to an external air cooler. A mesh frame 204 is fixedly connected to the lower part of the drying chamber 201, and a desiccant drawer 205 is slidably inserted into the mesh frame 204. Cool air is first pumped into the drying chamber 201 through the inlet pipe 203 and is initially dehumidified as it passes through the mesh frame 204 and the desiccant drawer 205, effectively reducing air humidity. The desiccant can be easily replaced by pulling out the desiccant drawer 205, ensuring continuous dehumidification.

[0018] A condensation chamber 206 is formed above the frame 204. Several spiral tubes 207 are fixedly connected inside the condensation chamber 206. A vent pipe 208 is fixedly installed on one side of the condensation chamber 206, and a pressure relief valve 210 is fixedly connected to the other side. A liquid nitrogen tank 209 is fixedly connected to the flange at the end of the vent pipe 208 away from the condensation chamber 206. The liquid nitrogen tank 209 sprays liquid nitrogen atomized into the condensation chamber 206 through the vent pipe 208, deeply cooling the spiral tubes 207. The cold air is further cooled as it flows through the spiral tubes 207, and water vapor condenses into water droplets that fall into the desiccant drawer 205, achieving dual dehumidification. This design significantly reduces the condensation of water vapor in the cold air on the copper-clad laminate surface and enhances cooling efficiency.

[0019] Each steering roller 101 has a spacer 211 and a perforated plate 212 on both sides. The top surface of the perforated plate 212 is covered with a speed control perforated plate 214. An adjustment knob 215 is rotatably connected to one side of the speed control perforated plate 214. The adjustment knob 215 passes through the outer plate 102 and is threadedly connected to the outer plate 102. By rotating the adjustment knob 215, the adjustment knob 215 is displaced between itself and the outer plate 102 through a bolt structure, thereby adjusting the alignment of the mesh of the adjustable speed control perforated plate 214 and the perforated plate 212, thus controlling the upward speed of the cold air and extending the heat exchange time.

[0020] A temperature sensor 213 is fixedly installed on the bottom surface of the perforated plate 212. The temperature sensor 213 monitors the temperature of the cold air at each height in real time to ensure a stable cooling gradient. A temperature gradient is formed inside the cooling chamber 1, with the lower zone providing strong cooling to the residual heat plate material and the higher zone providing gentle cooling to the newly entered hot plate material, thus improving overall efficiency.

[0021] A guide assembly 3 is provided on the outer side of the feed inlet 103. The guide assembly 3 includes two pairs of upper and lower bosses 301 symmetrically arranged on the outer side of the feed inlet 103. A rotating shaft 302 is rotatably connected between the two bosses 301 in the same pair. Damping pads 303 and bolts 304 are symmetrically arranged on both sides of the rotating shaft 302. The damping pads 303 are movably sleeved on the outside of the rotating shaft 302 and fit against the inner side of the bosses 301. The bolts 304 are threadedly connected to the rotating shaft 302 and fit against the outer side of the damping pads 303. A mounting plate 305 is fixedly connected to the middle of the rotating shaft 302. A telescopic rubber plate 306 is fixedly connected between the two mounting plates 305. The telescopic rubber plate 306 can be adjusted in angle by the rotating shaft 302 and fixed in position by the friction of the damping pads 303, effectively preventing external air from flowing back into the cooling chamber 1. Tightening bolt 304 can enhance the frictional resistance of damping pad 303, enabling rapid adjustment and locking of the angle of mounting plate 305.

[0022] A lifting frame 307 is provided on the lower outer side of the feed inlet 103. Both the lifting frame 307 and the boss 301 are fixed to the outside of the cooling chamber 1. A lifting roller is rotatably connected to the top of the lifting frame 307. The lifting roller and the telescopic rubber plate 306 work together to ensure that the plate enters smoothly and maintain the stability of the airflow inside the cooling chamber.

[0023] Working principle: Before using this automatic cooling device for the production of ceramic copper-clad substrates, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6As shown, cold air is first pumped into the drying chamber 201 through the inlet pipe 203, and then sprayed out through the spiral pipe 207. The low-temperature cold air gradually rises in the cooling chamber 1 and heats up as it exchanges heat with the board. Moreover, it is slowed down by the temperature sensor 213 and the speed control plate 214, which fully increases the heat exchange efficiency and time. During this process, cold air can be sprayed out from both the feed port 103 and the discharge port 104. The humidity is initially reduced when the cold air passes through the wire mesh frame 204 and the desiccant drawer 205; By rotating the adjustment knob 215, the speed control plate 214 and the mesh of the dividing plate 212 are aligned and adjusted, thereby controlling the speed of air rising, ultimately extending the efficiency of cold air heat exchange, and through the temperature sensor 213, the stability of cold air at various altitudes can be controlled.

[0024] Liquid nitrogen in liquid nitrogen tank 209 enters condensation chamber 206 in mist form through gas pipe 208 to cool spiral tube 207. When cold air enters spiral tube 207, it is further cooled, and water vapor liquefies and drips into desiccant drawer 205 below under gravity, further reducing the water vapor in the cold air. The dual dehumidification structure greatly prevents water vapor in the cold air from condensing into water droplets on the copper-clad laminate surface, and further cools the cold air, greatly increasing the cooling effect. As the cold air rises, it gradually warms up, causing the temperature of the cold air in the cooling chamber 1 to gradually increase from bottom to top. The cold air at the top, which is warmer, cools the high-temperature copper-clad laminate more gently, while the cold air at the bottom, which is cooler, further cools the copper-clad laminate that has already cooled but still has residual heat, greatly improving efficiency. By pulling the desiccant drawer 205 out of the drying chamber 201 and the wire mesh frame 204, the desiccant in the desiccant drawer 205 can be replaced. The boss 301 and the telescopic rubber plate 306 block the air that can enter the cooling chamber 1 through the feed inlet 103 to a certain extent, reducing the backflow of outside air into the cooling chamber 1. By rotating the bolt 304, the clamping force between the damping pad 303 and the boss 301 can be adjusted, thereby allowing the rotation angle of the mounting plate 305 to be quickly changed and fixed.

[0025] 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 automatic cooling device for producing ceramic copper-clad substrates, comprising a cooling chamber (1), wherein a plurality of guide rollers (101) for tensioning the ceramic copper-clad substrate are rotatably connected inside the cooling chamber (1), and outer plates (102) are symmetrically fixedly connected to the front and rear sides of the cooling chamber (1), a feed inlet (103) is provided on the top of one side of the cooling chamber (1), and a discharge outlet (104) is provided on the bottom of the other side of the cooling chamber (1); characterized in that, The cooling chamber (1) has an air outlet (202) at its bottom, and the cooling device further includes: A dehumidification assembly (2) is provided at the bottom of the cooling chamber (1). The dehumidification assembly (2) includes a drying chamber (201) fixed to the bottom of the cooling chamber (1). The top of the drying chamber (201) is open and is provided in accordance with the air outlet. An inlet pipe (203) is fixedly connected to the bottom of the drying chamber (201). The inlet pipe (203) is connected to an external air cooler. A wire mesh frame (204) is fixedly connected to the bottom of the drying chamber (201). A desiccant drawer (205) is slidably inserted into the wire mesh frame (204).

2. The automatic cooling device for producing ceramic copper-clad substrates according to claim 1, characterized in that: A condensation chamber (206) is formed above the mesh frame (204). Several spiral tubes (207) are fixedly connected inside the condensation chamber (206). A gas guide pipe (208) is fixedly installed on one side of the condensation chamber (206). A pressure relief valve (210) is fixedly connected to the other side of the condensation chamber (206). A liquid nitrogen tank (209) is fixedly connected to the flange at the end of the gas guide pipe (208) away from the condensation chamber (206).

3. The automatic cooling device for producing ceramic copper-clad substrates according to claim 1, characterized in that: Each of the steering rollers (101) is provided with a partition bar (211) and a partition plate (212) on both sides. The top surface of the partition plate (212) is covered with a speed control plate (214). An adjustment knob (215) is rotatably connected to one side of the speed control plate (214). The adjustment knob (215) passes through the outer plate (102) and is threadedly connected to the outer plate (102).

4. The automatic cooling device for producing ceramic copper-clad substrates according to claim 3, characterized in that: A temperature sensor (213) is fixedly installed on the bottom surface of the partition plate (212).

5. The automatic cooling device for producing ceramic copper-clad substrates according to claim 1, characterized in that: A guide assembly (3) is provided on the outside of the feed inlet (103); the guide assembly (3) includes two pairs of upper and lower bosses (301) symmetrically arranged on the outside of the feed inlet (103), and a rotating shaft (302) is rotatably connected between the two bosses (301) of the same pair. A damping pad (303) and a bolt (304) are symmetrically arranged on both sides of the rotating shaft (302). The damping pad (303) is movably sleeved on the outside of the rotating shaft (302). The damping pad (303) is in contact with the inner side of the boss (301). The bolt (304) is threadedly connected to the rotating shaft (302). The bolt (304) is in contact with the outer side of the damping pad (303). A mounting plate (305) is fixedly connected to the middle of the rotating shaft (302). A telescopic rubber plate (306) is fixedly connected between the two mounting plates (305).

6. An automatic cooling device for producing copper-clad ceramic substrates according to claim 5, characterized in that: A lifting frame (307) is provided on the lower outer side of the feed inlet (103). The lifting frame (307) and the boss (301) are both fixed on the outside of the cooling chamber (1). A lifting roller is rotatably connected to the top of the lifting frame (307).

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