A copper foil gluing and drying device and a drying method

Abstract

The present application relates to copper foil processing technical field, especially to a kind of copper foil gluing and drying equipment and drying method.The equipment includes mounting bracket, foot support, bottom box, top box, exhaust box and the like;The upper side of transmission belt passes through the left and right positions of mounting bracket;Foot support is installed on the front and back sides of mounting bracket;Bottom box is installed on the lower side of mounting bracket, and top box is installed on the upper side of mounting bracket;Exhaust box is installed on the upper side of top box.The present application sets rotatable heating mechanism under copper foil, and sets rotatable auxiliary heating mechanism on the top, simultaneously applies accurate heat field and airflow field to both sides of copper foil;Upper and lower heat sources rotate coaxially, form symmetric and coupled heat field environment, so that copper foil and its glue layer are heated uniformly in thickness direction, effectively reduce the temperature difference of upper and lower surfaces, avoid thermal warping and internal stress caused by single-sided heating, thereby greatly reduce the risk of coating cracking, improve product flatness.

Description

Technical Field

[0001] This invention relates to the field of copper foil processing technology, and in particular to a copper foil coating and drying equipment and drying method. Background Technology

[0002] In the copper foil coating process, the drying step is one of the key factors determining the coating quality and performance. Currently, most copper foil coating drying equipment in the industry uses single-sided contact heat conduction or infrared radiation heating methods, combined with a continuous hot air circulation system for drying. This type of equipment typically has heating elements fixedly installed above or below the conveyor belt, providing constant power heating to the passing coated copper foil.

[0003] However, existing drying equipment and methods have many shortcomings. Traditional fixed heating structures are prone to producing lamp-shadow effects and hot and cold spots in the width direction of the copper foil, resulting in uneven heating of the adhesive layer, affecting the consistency of solvent evaporation, and thus reducing the smoothness and adhesion of the coating. Furthermore, single-sided heating can easily cause significant temperature differences between the upper and lower surfaces of the copper foil, leading to thermal warping and internal stress concentration, increasing the risk of coating cracking and peeling. In addition, the heating power, heat radiation distance, and heat field distribution of existing equipment are mostly fixed or coarsely adjusted, making it difficult to make flexible and precise programmable controls according to the different requirements of adhesive composition, coating thickness, and drying stage, resulting in poor adaptability. Most equipment lacks real-time, full-width monitoring of adhesive layer surface temperature and deformation, and cannot perform closed-loop feedback adjustment during the drying process, leading to frequent defects such as over-drying, under-drying, or adhesive layer bubbles and edge curling, affecting product yield and batch consistency.

[0004] Therefore, it is necessary to develop a copper foil coating and drying equipment and method that can achieve dynamic and balanced heating on both sides and programmable control of the spatial distribution of the heat field to solve the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of current heating and drying methods, which easily lead to thermal warping and uneven heat distribution, resulting in poor adhesive curing quality and low product yield, the purpose of this invention is to provide a copper foil coating and drying equipment and method that can achieve dynamic and balanced heating on both sides and programmable control of the spatial distribution of the heat field.

[0006] The technical solution is as follows: A copper foil coating and drying equipment includes a mounting frame, legs, a bottom box, a top box, an exhaust box, a fixed frame, a stabilizing wheel set, a spacing adjustment mechanism, a speed adjustment mechanism, a heating mechanism, a lifting mechanism, a drive mechanism, an auxiliary heating mechanism, and an air supply mechanism; the upper side of the conveyor belt passes through the left and right positions of the mounting frame; legs are installed on both the front and rear sides of the mounting frame; a bottom box is installed on the lower side of the mounting frame, and a top box is installed on the upper side of the mounting frame; an exhaust box is installed on the upper side of the top box, and the exhaust box is connected to an external negative pressure suction pump and a waste gas treatment pipeline; fixed frames are installed on both the front and rear inner walls of the mounting frame, and each fixed frame has... The mounting frame is equipped with a stabilizing wheel assembly; an adjusting mechanism is located on the lower side of the mounting frame, a speed regulating mechanism is located on the adjusting mechanism, and a heating mechanism is located on the upper side of the speed regulating mechanism; the adjusting mechanism is used to drive the heating mechanism to rise and fall to adjust the drying distance, and the speed regulating mechanism is used to drive the heating mechanism to rotate; a lifting mechanism is located on the upper side of the mounting frame, a driving mechanism is located on the lifting mechanism, and an auxiliary heating mechanism is located on the lower side of the driving mechanism; the lifting mechanism is used to drive the auxiliary heating mechanism to rise and fall, and the driving mechanism is used to drive the auxiliary heating mechanism to rotate; a gas supply mechanism for supplying hot air to the auxiliary heating mechanism is located in the middle of the exhaust box, and the gas supply mechanism is connected to an external hot air source.

[0007] Preferably, the adjusting mechanism includes a first mounting platform, a first lifting unit, and a first displacement frame; the first mounting platform is fixed to the lower side of the mounting frame, and the first lifting unit is installed at the first mounting platform; the first displacement frame is installed at the moving part of the first lifting unit, and the speed adjusting mechanism is located in the middle of the first displacement frame.

[0008] Preferably, the speed regulating mechanism includes a first enclosure frame, a first electric annular slide rail, and a first rotating frame; the first enclosure frame is installed in the middle of the first displacement frame, and the first electric annular slide rail is installed at the first enclosure frame; the first rotating frame is installed at the rotating part of the first electric annular slide rail, and the heating mechanism is located on the upper side of the first rotating frame.

[0009] Preferably, the heating mechanism includes a cooling module, a mounting ring, a central heating group, an inner circumferential heating group, a middle layer heating group, and an outer circumferential heating group; multiple cooling modules are mounted on the upper side of the first rotating frame, and at least three concentrically arranged mounting rings are provided on the upper side of the cooling end face of the cooling module; multiple heating groups with consistent spacing are mounted on the upper side of each mounting ring; the heating group located at the middle mounting ring is the central heating group, and the mounting ring around the central heating group is provided with an inner circumferential heating group, a middle layer heating group, and an outer circumferential heating group in sequence; the heating temperatures of the central heating group, the inner circumferential heating group, the middle layer heating group, and the outer circumferential heating group are all independently controlled.

[0010] Preferably, the lifting mechanism includes a second mounting platform, a second lifting unit, and a second displacement frame; the second mounting platform is fixed to the upper side of the mounting frame, and the second lifting unit is mounted on the second mounting platform; the second displacement frame is mounted at the moving part of the second lifting unit, and the driving mechanism is located in the middle of the second displacement frame.

[0011] Preferably, the drive mechanism includes a second enclosure frame, a second electric annular slide rail, and a second rotating frame; the second enclosure frame is installed in the middle of the second displacement frame, and the second electric annular slide rail is installed in the middle of the second enclosure frame; the second rotating frame is installed at the rotating part of the second electric annular slide rail, and the auxiliary heating mechanism is located on the lower side of the second rotating frame.

[0012] Preferably, the auxiliary heating mechanism includes a connecting frame, a jet pipe, a connecting pipe, and a rotary joint; the connecting frame is installed on the lower side of the second rotating frame, and the jet pipe is installed at the connecting frame; the connecting pipe is installed on the upper side of the middle of the jet pipe, and the rotary joint is installed on the upper side of the connecting pipe; the rotating end of the rotary joint is fixedly connected to the connecting pipe; the mounting end of the rotary joint is fixed to the middle of the second enclosure frame; and the input end of the rotary joint is connected to the air supply mechanism.

[0013] Preferably, the gas supply mechanism includes an external pipe, a hose, and a solenoid valve; the external pipe is installed in the middle of the exhaust box and connected to an external heat source, and the hose and solenoid valve are connected in sequence on the lower side of the external pipe, with the lower side of the solenoid valve connected to the upper end of the connecting pipe.

[0014] Preferably, it also includes a monitoring mechanism, which includes an electric slide rail, a temperature sensor, and a distance sensor; synchronously controlled electric slide rails are installed on both the front and rear sides of the lower side of the connecting frame; an infrared temperature sensor is installed at the moving part of the front electric slide rail, and a distance sensor is installed at the moving part of the rear electric slide rail.

[0015] A method for drying copper foil coated with adhesive includes the following steps: S1: Feeding and positioning: The conveyor belt runs counterclockwise intermittently. During the pause, the copper foil is placed on the placement plate. After being coated with glue at the glue coating station, the coated copper foil is sent into the drying space consisting of the bottom box, the mounting frame and the top box. S2: Bottom heating and top auxiliary heating work together for drying: According to the preset program, the distance adjustment mechanism drives the heating mechanism to rise to the set distance, and the speed adjustment mechanism drives the heating mechanism to rotate; at the same time, the heating mechanism is started, so that each heating group of the heating mechanism operates at an independent preset temperature, forming a circular heat field with a radial temperature gradient; at the same time, the lifting mechanism drives the auxiliary heating mechanism to descend to the set position, the air supply mechanism supplies hot air to the auxiliary heating mechanism, and the driving mechanism drives the auxiliary heating mechanism to rotate, performing rotary hot air auxiliary heating on the upper surface of the copper foil; through the synergy of the bottom rotating heat field and the top rotating hot air auxiliary heating, the upper and lower sides of the copper foil are heated and dried simultaneously; S3: Monitoring and Control: During the drying process, the monitoring mechanism rotates with the drive mechanism to scan and monitor the adhesive layer on the upper surface of the copper foil, collect temperature and deformation data in real time and feed them back to the control system to dynamically adjust the operating parameters of the adjusting mechanism, speed regulating mechanism, heating mechanism, lifting mechanism, drive mechanism and air supply mechanism. S4: Exhaust gas treatment and discharge: Throughout the drying process, the exhaust box continuously extracts volatile gases from the drying space; after the drying process is completed, all mechanisms are reset, and the conveyor belt starts stepping to move the dried copper foil out of the drying space.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention provides a rotatable heating mechanism below the copper foil and a rotatable auxiliary heating mechanism above it, thereby applying a precise thermal field and airflow field to both the upper and lower sides of the copper foil simultaneously; the upper and lower heat sources rotate coaxially to form a symmetrical and coupled thermal field environment, which makes the copper foil and its adhesive layer heated in the thickness direction, effectively reducing the temperature difference between the upper and lower surfaces, avoiding thermal warping and internal stress caused by single-sided heating, thereby significantly reducing the risk of coating cracking and improving product flatness.

[0017] 2. The heating mechanism of this invention employs multiple ring-shaped heating groups with independent temperature control from the center to the outer periphery, namely, a central heating group, an inner peripheral heating group, a middle layer heating group, and an outer peripheral heating group. Combined with rotational motion, these groups can form a circular thermal field modulation disk with a dynamic radial temperature gradient. Through a preset program, priority heating of the center can be achieved in the early stage of drying, guiding the solvent inside the adhesive layer to evaporate in an orderly manner from the inside out, preventing premature crusting on the surface. In the middle and later stages of drying, the power of each ring can be gradually adjusted to compensate for heat dissipation at the edges, achieving a uniform temperature across the entire surface, thereby significantly improving the curing quality and uniformity of the adhesive layer.

[0018] 3. The present invention has a monitoring mechanism at the auxiliary heating mechanism. Through the cooperation of electric slide rail and rotational motion, the infrared temperature sensor and the distance sensor are driven to scan and monitor the copper foil adhesive layer. The temperature data is used to dynamically correct the heating power to prevent over-baking or under-baking. The deformation data is used for early warning. When the adhesive layer shows a tendency to bulge or curl, the thermal field parameters are adjusted in real time to realize closed-loop feedback control, effectively reduce the scrap rate and ensure batch consistency.

[0019] 4. The auxiliary heating mechanism of the present invention uses a dense array of micro-nozzles to spray hot air micro-flow, which is accompanied by rotational motion to achieve uniform coverage. This micro-flow can not only break the static air boundary layer on the surface of the adhesive layer and promote solvent evaporation, but also avoids wrinkling or damaging the surface smoothness of the wet adhesive coating due to its extremely low wind speed, thus improving drying efficiency while ensuring the appearance quality of the coating. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the mounting bracket portion of the present invention.

[0023] Figure 4This is a partial three-dimensional structural diagram of the mounting bracket portion of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the adjusting mechanism and lifting mechanism of the present invention.

[0025] Figure 6 This is a first-view three-dimensional structural diagram of the speed regulating mechanism and drive mechanism of the present invention.

[0026] Figure 7 This is a second perspective three-dimensional structural diagram of the speed regulating mechanism and drive mechanism of the present invention.

[0027] Figure 8 This is a first-view three-dimensional structural diagram of the auxiliary heating mechanism and monitoring mechanism of the present invention.

[0028] Figure 9 This is a second perspective three-dimensional structural diagram of the auxiliary heating mechanism and monitoring mechanism of the present invention.

[0029] Figure 10 This is a first-view three-dimensional structural diagram of the heating mechanism of the present invention.

[0030] Figure 11 This is a three-dimensional structural diagram of the speed regulating mechanism of the present invention.

[0031] Figure 12 This is a second perspective three-dimensional structural diagram of the heating mechanism of the present invention.

[0032] In the attached diagram, the markings are as follows: 1001: Conveyor belt; 1002: Placement plate; 1: Mounting frame; 2: Leg; 3: Base box; 4: Top box; 5: Exhaust box; 6: Fixing frame; 7: Stabilizing wheel assembly; 8: Adjustment mechanism; 9: Speed ​​adjustment mechanism; 10: Heating mechanism; 11: Lifting mechanism; 12: Drive mechanism; 13: Auxiliary heating mechanism; 14: Air supply mechanism; 81: First mounting platform; 82: First lifting unit; 83: First displacement frame; 91: First enclosure frame; 92: First electric circular slide rail; 93: First rotating frame; 101: Cooling module; 1011: Mounting ring; 1 02: Central heating group, 103: Inner circumferential heating group, 104: Middle layer heating group, 105: Outer circumferential heating group, 111: Second mounting platform, 112: Second lifting group, 113: Second displacement frame, 121: Second enclosure frame, 122: Second electric circular slide rail, 123: Second rotating frame, 131: Connecting frame, 132: Jet pipe, 133: Connecting pipe, 134: Rotary joint, 141: Outer pipe, 142: Hose, 143: Solenoid valve, 15: Monitoring mechanism, 151: Electric slide rail, 152: Temperature sensor, 153: Distance sensor. Detailed Implementation

[0033] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] Example 1, as Figures 1-12As shown, a copper foil coating and drying device includes a mounting frame 1, legs 2, a base box 3, a top box 4, an exhaust box 5, a fixed frame 6, a stabilizing wheel set 7, a pitch adjustment mechanism 8, a speed adjustment mechanism 9, a heating mechanism 10, a lifting mechanism 11, a drive mechanism 12, an auxiliary heating mechanism 13, and an air supply mechanism 14. The mounting frame 1 is a horizontal frame structure. Both sides of the mounting frame 1 have rectangular holes, through which the upper part of the external conveyor belt 1001 can pass. Legs 2 are installed at the front and rear positions of the mounting frame 1. This copper foil coating and drying device... Mounting frame 1 is installed in the copper foil coating and drying workshop via bracket 2, with the mounting frame 1 positioned to the left of the copper foil coating station. A base box 3 is installed under mounting frame 1, with the lower portion of the external conveyor belt 1001 located below the base box 3. A top box 4 is installed on top of mounting frame 1, and the base box 3 and top box 4 are interconnected. The base box 3, mounting frame 1, and top box 4 form a space for drying the copper foil coating. The external conveyor belt 1001 is controlled to operate counter-clockwise intermittently. During a pause in the conveyor belt 1001's operation, the copper foil can be placed on the placement plate 1002 at the location of the conveyor belt 1001. The placement plate 1002 is a microporous ceramic vacuum suction cup, which is intermittently moved to the gluing station by the conveyor belt 1001 for gluing, until the placement plate 1002 and the glued copper foil on it enter the space for drying the copper foil, which is composed of the bottom box 3, the mounting frame 1, and the top box 4. An exhaust box 5 is installed on the upper side of the top box 4, and the exhaust box 5 is interconnected with the top box 4. The exhaust box 5 is connected to an external negative pressure suction pump and an exhaust gas treatment pipe. The exhaust box 5 and the external suction pump and exhaust gas treatment pipe connected thereto are used to extract the contents of the drying space composed of the bottom box 3, the mounting frame 1, and the top box 4. Gas generated during adhesive drying; Fixing frames 6 are installed on the front and rear inner walls of the mounting frame 1. The fixing frames 6 are all U-shaped structures, and the U-shaped structures of the fixing frames 6 face each other. Stabilizing wheel sets 7 are installed on the upper and lower walls inside the U-shaped structures of the fixing frames 6. The steel belt of the external conveyor belt 1001 is located at the corresponding positions between the stabilizing wheel sets 7. The stabilizing wheel sets 7 are used to stabilize the placement plate 1002 to keep it horizontal, so that the placement plate 1002 and the copper foil and adhesive layer on it remain horizontal in the drying space composed of the bottom box 3, the mounting frame 1 and the top box 4.The mounting frame 1 has an adjusting mechanism 8 on its lower side, which is used for lifting. A speed regulating mechanism 9 is located at the adjusting mechanism 8, which is used for rotation. A heating mechanism 10 is located above the speed regulating mechanism 9, which heats the lower side of the copper foil on the placement plate 1002 to dry the copper foil and the adhesive on it. The adjusting mechanism 8 adjusts the drying distance of the heating mechanism 10 from the copper foil adhesive, and the speed regulating mechanism 9 adjusts the rotation speed of the heating mechanism 10. The heating parameters and operating program of the heating mechanism 10, as well as the lifting height and operating program of the adjusting mechanism 8, can be preset via an external computer according to the composition and thickness of the adhesive coating on the copper foil and the heating parameters required for drying the adhesive, such as temperature and time. The operating program of the speed regulating mechanism 9 is also preset. The mounting frame 1 has a lifting mechanism 11 on its upper side, which is used for lifting. A drive mechanism 12 is located at the lifting mechanism 11, which is used for... The drive mechanism 12 is equipped with an auxiliary heating mechanism 13 on its lower side. The auxiliary heating mechanism 13 provides hot air assistance to heat the upper side of the copper foil, thereby drying the copper foil and its adhesive and reducing the temperature difference between the upper and lower sides of the copper foil. An air supply mechanism 14 is located in the middle of the exhaust box 5, connected to an external hot air source. The auxiliary heating mechanism 13 is connected to the air supply mechanism 14, which supplies hot air into the auxiliary heating mechanism 13. The rotation centers of the speed regulating mechanism 9, heating mechanism 10, drive mechanism 12, and auxiliary heating mechanism 13 are all on the same vertical line. The air supply parameters and operating procedures of the auxiliary heating mechanism 13, air supply mechanism 14, and external hot air source can be preset via an external computer according to the composition and thickness of the adhesive coating on the copper foil and the heating parameters required for drying the adhesive, such as temperature and time. The lifting height and operating procedure of the lifting mechanism 11 can also be preset so that the auxiliary heating mechanism 13 and heating mechanism 10 operate in tandem to heat and dry the upper and lower sides of the copper foil.

[0035] like Figure 5 As shown, the adjusting mechanism 8 includes a first mounting platform 81, a first lifting unit 82, and a first displacement frame 83. The first mounting platform 81 is installed on the lower side of the front and rear positions of the mounting frame 1. The first lifting unit 82 is installed on the first mounting platform 81. The first lifting unit 82 is a vertically placed lifting pair controlled synchronously by the servo system. The first displacement frame 83 is installed between the moving parts of the first lifting unit 82. The speed regulating mechanism 9 is located in the middle of the first displacement frame 83. By controlling the operation of the first lifting unit 82, the first lifting unit 82 will drive the first displacement frame 83, the speed regulating mechanism 9, and the heating mechanism 10 to move up and down.

[0036] like Figures 5-7As shown, the speed regulating mechanism 9 includes a first enclosure frame 91, a first electric circular slide rail 92, and a first rotating frame 93. The first enclosure frame 91 is installed in the middle of the first displacement frame 83. The first enclosure frame 91 has a hollow structure, which facilitates heat dissipation of the heating mechanism 10 during operation. The first electric circular slide rail 92 is installed in the middle of the first enclosure frame 91. The first electric circular slide rail 92 is a horizontally placed circular track pair controlled by a servo system. The first rotating frame 93 is installed at the rotating part of the first electric circular slide rail 92. The heating mechanism 10 is located on the upper side of the first rotating frame 93. The first rotating frame 93 has a forked frame structure, which facilitates heat dissipation of the heating mechanism 10 during operation. By controlling the operation of the first electric circular slide rail 92, the first electric circular slide rail 92 will drive the first rotating frame 93 and the heating mechanism 93 to rotate.

[0037] like Figures 10-12As shown, the heating mechanism 10 includes a cooling module 101, mounting rings 1011, a central heating group 102, an inner circumferential heating group 103, a middle heating group 104, and an outer circumferential heating group 105. Multiple cooling modules 101 are mounted on the upper side of each forked frame structure of the first rotating frame 93. Each cooling module 101 is a diode cooling chip. At least three mounting rings 1011 are provided between the upper sides of the cooling end faces of the multiple cooling modules 101. The mounting rings 1011 are all made of copper for easy heat conduction. Each mounting ring 1011 is concentric. Multiple heating elements with uniform spacing are installed on the upper side of the 011. The heat dissipation end face of the heating element contacts the mounting ring 1011 to be cooled by the cooling module 101. Among them, the heating element installed at the mounting ring 1011 located above the middle of the first rotating frame 93 is the central heating element 102, the heating element located around the central heating element 102 is the inner circumferential heating element 103, the heating element located around the inner circumferential heating element 103 is the middle layer heating element 104, and the heating element located around the middle layer heating element 104 is the outer circumferential heating element 105. The central heating element 102 and the inner circumferential heating element 105 are... 03. The heating temperatures of the middle layer heating group 104 and the outer peripheral heating group 105 are independently controlled, so that the center heating group 102, the inner peripheral heating group 103, the middle layer heating group 104, and the outer peripheral heating group 105 can irradiate the lower side of the copper foil at different temperatures. Combined with the rotation of the first electric annular slide rail 92, the heating mechanism 10 can rotate as a whole at a set speed, so that the coordinated operation of the center heating group 102, the inner peripheral heating group 103, the middle layer heating group 104, and the outer peripheral heating group 105 forms a circular inner and outer peripheral heating layer with different temperature layers. The field modulation disk; the adjacent heating units of the center heating group 102, inner peripheral heating group 103, middle layer heating group 104 and outer peripheral heating group 105 arranged on each radius line from the inside to the outside are in contact with each other to ensure that the heat radiation area of ​​the heating mechanism 10 has a complete circular temperature field when the heating mechanism 10 rotates, so as to fully cover the lower side of the copper foil for heating; the heating temperature of the center heating group 102, inner peripheral heating group 103, middle layer heating group 104 and outer peripheral heating group 105 and the temperature adjustment during the programmed heating process can be controlled separately.

[0038] like Figure 5 As shown, the lifting mechanism 11 includes a second mounting platform 111, a second lifting unit 112, and a second displacement frame 113. The second mounting platform 111 is installed on the upper side of both the front and rear positions of the mounting frame 1. The second lifting unit 112 is installed on each of the second mounting platforms 111. The second lifting units 112 are all vertically placed lifting pairs that are synchronously controlled by a servo system. The second displacement frame 113 is installed between the moving parts of the second lifting unit 112. The second displacement frame 113 has a hollow structure. The drive mechanism 12 is located at the middle position of the second displacement frame 113. By controlling the operation of the second lifting unit 112, the second lifting unit 112 will drive the second displacement frame 113 and the auxiliary heating mechanism 13 to lift.

[0039] like Figures 6-9 As shown, the drive mechanism 12 includes a second enclosure frame 121, a second electric annular slide rail 122, and a second rotating frame 123. The second enclosure frame 121 is installed in the middle of the second displacement frame 113. The hollow structure of the second enclosure frame 121 facilitates the upward dispersion of gas generated during copper foil drying, which is then sucked out by the exhaust box 5. The second electric annular slide rail 122 is installed in the middle of the second enclosure frame 121. The second electric annular slide rail 122 is a horizontally placed annular track pair controlled by a servo system. The second rotating frame 123 is installed at the rotating part of the second electric annular slide rail 122. The auxiliary heating mechanism 13 is located on the lower side of the second rotating frame 123. By controlling the operation of the second electric annular slide rail 122, the second electric annular slide rail 122 will drive the second rotating frame 123 and the auxiliary heating mechanism 13 to rotate.

[0040] like Figures 7-9 As shown, the auxiliary heating mechanism 13 includes a connecting frame 131, a jet pipe 132, a connecting pipe 133, and a rotary joint 134. The connecting frame 131 is installed on the lower side of the second rotary frame 123. The connecting frame 131 has a forked frame structure. The jet pipe 132 is installed at the forked structure on both the left and right sides of the connecting frame 131. The lower side of the jet pipe 132 has multiple dense array fine nozzles. The jet pipe 132 and its fine nozzle structure are used to spray out hot air micro-flow, so as to reduce the temperature difference between the upper and lower surfaces of the copper foil, which facilitates the curing of the adhesive and avoids wrinkling of the adhesive coating. A connecting pipe 133 is installed on the upper side of the middle part of the jet pipe 132, and a rotary joint 134 is installed on the upper side of the connecting pipe 133. The rotating end of the rotary joint 134 is fixedly connected to the connecting pipe 133, and the mounting end of the rotary joint 134 is installed in the middle of the second enclosure frame 121. The input end of the rotary joint 134 is connected to the air supply mechanism 14. While the jet pipe 132 sprays hot air micro-flow, the rotation of the second electric annular slide rail 122 can make the jet pipe 132 spray in a circular manner, so that the upper surface of the copper foil is fully covered by auxiliary heating.

[0041] like Figures 7-9 As shown, the gas supply mechanism 14 includes an external pipe 141, a hose 142, and a solenoid valve 143. The external pipe 141 is installed in the middle of the exhaust box 5 and is connected to an external heat source. The hose 142 is installed on the lower side of the external pipe 141 and the solenoid valve 143 is installed on the lower side of the hose 142. The solenoid valve 143 is a flow-type valve and its lower side is connected to the upper end of the connecting pipe 133. By inputting an external heat source and controlling the output temperature, the solenoid valve 143 is opened, and the external heat source injects hot air at the set temperature through the external pipe 141 and sprays it out from the jet pipe 132.

[0042] like Figures 8-9As shown, it also includes a monitoring mechanism 15. The monitoring mechanism 15 is located on the lower side of the connecting frame 131. The monitoring mechanism 15 includes an electric slide rail 151, a temperature sensor 152, and a distance sensor 153. The monitoring mechanism 15 is used to monitor the real-time temperature and real-time deformation of the adhesive on the upper side of the copper foil, so as to facilitate further precise adjustment of the distance adjustment mechanism 8, speed adjustment mechanism 9, heating mechanism 10, lifting mechanism 11, drive mechanism 12, and auxiliary heating mechanism 13 during the drying process of the copper foil adhesive. Electric slide rails 151 are installed on both the front and rear sides of the connecting frame 131. The electric slide rails 151 are all longitudinally transverse track pairs synchronously controlled by the servo system. The moving parts of the electric slide rails 151 are all located at the rear end. A temperature sensor 152 is installed at the moving part of the front electric slide rail 151. The temperature sensor 152 is an infrared sensor. In this configuration, temperature sensor 152 monitors the temperature of the copper foil adhesive layer below, using this temperature data to determine whether the heating and drying process is normal. A distance sensor 153 is installed at the moving part of the rear electric slide rail 151. The distance sensor 153 monitors the distance between itself and the copper foil adhesive layer below, using this distance data to determine whether the adhesive layer has bulges, curled edges, or other deformations. During the rotation of the second electric circular slide rail 122, the monitoring mechanism 15 will rotate as a whole, causing the temperature sensor 152 and the distance sensor 153 to perform scanning monitoring. The two electric slide rails 151 will intermittently drive the temperature sensor 152 and the distance sensor 153 to move according to the rotation cycle of the second electric circular slide rail 122, so that the temperature sensor 152 and the distance sensor 153 can scan the copper foil adhesive liquid from the inside and outside.

[0043] Example 2, as Figures 1-12 As shown, the assembly and feeding of the copper foil coating and drying equipment are as follows: The copper foil coating and drying equipment is installed on the left side of the coating station by the stand 2, and the upper side of the conveyor belt 1001 passes through the rectangular hole of the mounting frame 1; the conveyor belt 1001 is controlled to run counterclockwise intermittently, and the copper foil is placed on the placement plate 1002 during the pause section. Then the conveyor belt 1001 steps forward and passes through the coating station for coating. After coating, the coated copper foil is sent to the drying space composed of the bottom box 3, the mounting frame 1 and the top box 4. When entering, the stabilizing wheel group 7 at the fixed frame 6 stabilizes the level of the steel belt of the conveyor belt 1001, ensuring that the placement plate 1002 and the copper foil remain horizontal.

[0044] The drying process of this copper foil coating and drying equipment is as follows: When the coated copper foil on a placement plate 1002 enters the drying space consisting of a bottom box 3, a mounting frame 1, and a top box 4; ① The bottom of the copper foil is heated. According to a preset program, the first lifting unit 82 drives the first displacement frame 83 to raise the heating mechanism 10 to the set drying distance; the first electric circular slide rail 92 is activated, driving the first rotating frame 93 and the heating mechanism 10 to rotate; the heating mechanism 10 is activated, so that the central heating group 102, the inner peripheral heating group 103, the middle layer heating group 104, and the outer peripheral heating group 105 operate at independently preset temperatures, and the rotational motion forms a circular heat field modulation disk with a radial temperature gradient; thereby heating the bottom of the copper foil, and thus... The adhesive on the upper side of the copper foil is dried. A ring-shaped array of heating elements, with independent temperature control from the inside out, creates a center-priority heat field distribution at the bottom of the copper foil, effectively guiding the solvent inside the adhesive layer to evaporate from the inside out and preventing premature surface crusting. The rotational motion, combined with the ring-shaped heating elements, ensures that every tiny area at the bottom of the copper foil experiences dynamic, average heat radiation, eliminating the lamp-shadow effect and hot / cold spots common with traditional fixed heating tubes. The first lifting unit 82 can precisely adjust the heat radiation distance, allowing for rapid matching of heat flux density according to different adhesive layer thicknesses and compositions. Following the center-priority heat field distribution according to a preset program, the central heating unit 102, inner circumferential heating unit 103, middle layer heating unit 104, and outer circumferential heating unit 105 are controlled according to another program. Radial temperature gradient operation, for example, gradually decreasing the temperature of the central heating group 102 and the inner peripheral heating group 103 located in the middle, and gradually increasing the temperature of the middle layer heating group 104 and the outer peripheral heating group 105, to compensate for the heat loss at the edge of the copper foil and make the temperature of the copper foil adhesive uniform across the entire surface; ② Simultaneously with the process in "①", the top of the copper foil is heated: hot air is introduced through an external heat source, and hot air micro-flows are sprayed out from the dense array of fine nozzles of the jet pipe 132; the second lifting unit 112 of the lifting mechanism 11 drives the second displacement frame 113 to lower the connecting frame 131 and the jet pipe 132 to the auxiliary heating position close to the upper surface of the copper foil; the second electric annular slide rail 122 drives the jet pipe 132 to rotate, so that the adhesive on the upper surface of the copper foil is uniformly and gently coated. The cover-type auxiliary heating reduces the temperature difference between the upper and lower surfaces of the copper foil, avoiding thermal warping caused by single-sided heating. Through micro-airflow, it can both break the static air boundary layer on the upper surface to promote solvent evaporation and avoid wrinkling or damaging the surface smoothness of the wet adhesive coating; ③ The copper foil adhesive is dried in synergy by the above "① and ②" processes: the distance adjustment mechanism 8, speed adjustment mechanism 9 and heating mechanism 10 located at the upper and lower positions of the mounting frame 1 work together with the lifting mechanism 11, drive mechanism 12 and auxiliary heating mechanism 13 at the top. Through the program preset by the external computer, the heating mechanism 10 located at the bottom of the copper foil forms a heat field modulation disk, which works in sync with the rotating jet of the auxiliary heating mechanism 13 located at the top of the copper foil to apply a precise heat field and airflow field to the upper and lower sides of the copper foil at the same time;The upper and lower heat sources rotate coaxially, creating a symmetrical and coupled thermal environment. This ensures that the copper foil and its adhesive layer are heated evenly in the thickness direction, reducing internal stress and thus minimizing the risk of coating cracking. A computer program allows for flexible setting of the sequential power changes of different heating groups at the bottom, linked to the temperature and flow rate of the top airflow, enabling programmable control of the drying curve to adapt to various formulations and process requirements. Intermittent stepping combined with double-sided dynamic heating ensures that each copper foil undergoes the same thermal drying process, improving batch consistency. Monitoring and Control: During the drying process of the copper foil adhesive in steps ① and ② above, the electric slide rail 151 drives the infrared temperature sensor 152 and the distance sensor 153, which scan and monitor the process as the second electric annular slide rail 122 rotates. The temperature sensor 152 collects real-time data on the adhesive layer surface. The surface temperature and distance sensor 153 detect deformation of the adhesive layer, such as protrusions and warping. Data is fed back to an external computer for further precise adjustment of the distance adjustment mechanism 8, speed adjustment mechanism 9, heating mechanism 10, lifting mechanism 11, drive mechanism 12, and auxiliary heating mechanism 13 during the copper foil adhesive drying process. Temperature sensor 152 and distance sensor 153 perform circular scanning, enabling non-contact real-time monitoring of the entire copper foil surface without blind spots. Temperature data is used to dynamically correct heating power, preventing over- or under-baking and ensuring curing quality. Deformation data can be used for early warning, allowing for immediate adjustment of thermal field parameters when bubbles or warping trends appear in the adhesive layer, reducing scrap rates. The intermittent movement of the electric slide rail 151, combined with rotational scanning, achieves full coverage of the inner and outer rings, with uniform data sampling point distribution.

[0045] Example of the preset drying procedure for copper foil coating and drying equipment: Based on the composition, thickness, and heating parameters required for drying the copper foil coating and drying equipment, such as the required temperature and time, one of the drying procedures of the copper foil coating and drying equipment is as follows: ① In the initial stage of drying, the heating mechanism 10 is in a lower position, that is, relatively far away from the copper foil, and the heat is relatively gentle; the purpose is to allow the coating to flow further and allow the solvent to be slowly preheated from the inside, preventing the surface from being heated rapidly and causing the solvent to boil and form pinholes, while making the internal temperature of the adhesive layer rise evenly, creating a channel for the subsequent smooth escape of the solvent. ② During the middle stage of drying, the adjusting mechanism 8 drives the heating mechanism 10 to gradually rise, that is, gradually approach the copper foil to increase the heat radiation intensity. At this time, the internal temperature of the coating has risen to near the boiling point of the solvent, and a large amount of solvent evaporates. The annular heating groups of the heating mechanism 10 are put into operation according to the preset power ratio. The central heating group 102 maintains full power, while the inner peripheral heating group 103, the middle layer heating group 104 and the outer peripheral heating group 105 are put into operation with decreasing power in sequence, forming a heat field gradient that decreases from the inside to the outside, guiding the solvent vapor to be discharged in an orderly manner from the inside of the coating along the thickness direction. At the same time, the speed adjusting mechanism 9 increases the rotation speed from the initial low speed to the medium speed, so that the heat is evenly distributed in the width direction of the copper foil, avoiding local overheating that could cause the coating to crack. ③ In the later stage of drying, the heating mechanism 10 rises to the highest position, that is, the position closest to the copper foil. All annular heating zones operate at full power to rapidly cure the copper foil and its adhesive layer at high temperature, so that the adhesive layer is fully cross-linked and reaches the designed strength. At the same time, the speed regulating mechanism 9 increases the rotation speed to high speed, and uses rapid rotation to spread the heat to the entire surface of the copper foil, eliminating residual temperature unevenness and ensuring that the curing degree of the whole surface is consistent. ④ During the entire drying process, the top auxiliary heating mechanism 13 and the bottom heating mechanism 10 work together: the air supply mechanism 14 delivers external hot air source to the rotary joint 134 through the external pipe 141, hose 142 and solenoid valve 143, and finally sprays out hot air micro-flow from the dense array of fine nozzles of the jet pipe 132. The lifting mechanism 11 sends the jet pipe 132 to a height close to the upper surface of the copper foil, and the driving mechanism 12 drives the jet pipe 132 to rotate, so that the hot air micro-flow evenly covers the upper surface of the copper foil. Its temperature is set to 80% to 90% of the temperature of the corresponding stage at the bottom, so as to reduce the temperature difference between the upper and lower surfaces of the copper foil and prevent the copper foil from thermally warping due to heating on one side. At the same time, the micro-flow can destroy the static air boundary layer on the upper surface of the adhesive layer and promote the evaporation of surface solvent, but the wind speed is extremely low to avoid wrinkling the wet adhesive coating. ⑤ The monitoring mechanism 15 operates in scanning mode throughout the drying process. If the temperature measured by the temperature sensor 152 deviates from the preset value by ±3℃, the control system automatically fine-tunes the lifting height of the distance adjustment mechanism 8. Raising the height lowers the temperature, lowering the height raises the temperature, or adjusting the output power of the corresponding annular heating group. The distance sensor 153 monitors the deformation of the adhesive layer surface in real time. If abnormal trends such as adhesive layer protrusion, edge curling, or excessive shrinkage are detected, the control system automatically reduces the current heating power and appropriately increases the rotation speed. At the same time, it adjusts the top auxiliary heating temperature to balance the stress on the upper and lower surfaces and prevent the defects from expanding.⑥ After the drying process is completed, the heating mechanism 10 and the auxiliary heating mechanism 13 stop heating, the speed regulating mechanism 9 and the drive mechanism 12 gradually decelerate to stop, the distance regulating mechanism 8 and the lifting mechanism 11 reset the heating plate and the auxiliary heating plate to the initial position, the conveyor belt 1001 restarts the stepping, and moves the dried copper foil out of the drying space. At the same time, the next piece of copper foil to be dried enters the drying space and enters the next working cycle. The exhaust gas treatment system continues to operate throughout the process. The exhaust box 5 continuously extracts the volatile organic gases in the drying space and sends them to the external exhaust gas treatment pipeline for purification treatment to ensure production safety and environmental compliance. ⑦ The entire drying process is executed through a pre-set formula file on an external computer. The formula file includes the lifting height curve of the adjusting mechanism 8, the speed curve of the speed regulating mechanism 9, the time-series power curve of each annular heating group, the auxiliary heating height curve of the lifting mechanism 11, the speed curve of the drive mechanism 12, the temperature and flow curve of the air supply mechanism 14, and the intermittent pause duration of the conveyor belt 1001. During actual production, the operator only needs to input the type of adhesive and the coating thickness of the copper foil coating, and the system will automatically call up the corresponding formula file to achieve efficient and precise drying of different adhesive components and thicknesses.

[0046] A method for drying copper foil coated with adhesive includes the following steps: S1: Loading and Positioning: Conveyor belt 1001 operates counterclockwise intermittently. During pauses, copper foil is placed on placement plate 1002. After being coated with adhesive at the coating station, the coated copper foil is sent into the drying space consisting of bottom box 3, mounting frame 1, and top box 4. S2: Coordinated Drying with Bottom Heating and Top Auxiliary Heating: According to a preset program, distance adjustment mechanism 8 drives heating mechanism 10 to rise to a set distance, and speed adjustment mechanism 9 drives heating mechanism 10 to rotate. Simultaneously, heating mechanism 10 is activated, causing each heating group of heating mechanism 10 to operate at an independent preset temperature, forming a circular heat field with a radial temperature gradient. At the same time, lifting mechanism 11 drives auxiliary heating mechanism 13 to descend to a set position, air supply mechanism 14 supplies hot air to auxiliary heating mechanism 13, and drive mechanism 12 drives auxiliary heating mechanism 13 to rotate. Rotary hot air auxiliary heating is applied to the upper surface of the copper foil; through the synergy of the bottom rotating hot air auxiliary heating and the top rotating hot air auxiliary heating, the upper and lower sides of the copper foil are heated and dried simultaneously; S3: Monitoring and control: During the drying process, the monitoring mechanism 15 rotates with the drive mechanism 12 to scan and monitor the adhesive layer on the upper surface of the copper foil, collect temperature data and deformation data in real time and feed them back to the control system to dynamically adjust the operating parameters of the adjusting mechanism 8, the speed adjusting mechanism 9, the heating mechanism 10, the lifting mechanism 11, the drive mechanism 12 and the air supply mechanism 14; S4: Waste gas treatment and discharge: Throughout the drying process, the exhaust box 5 continuously extracts the volatile gases in the drying space; after the drying program is completed, each mechanism is reset, and the conveyor belt 1001 starts stepping to move the dried copper foil out of the drying space.

[0047] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A copper foil coating and drying device, characterized in that: It includes a mounting frame (1), a foot bracket (2), a base box (3), a top box (4), an exhaust box (5), a fixing frame (6), a stabilizing wheel set (7), an adjustment mechanism (8), a speed adjustment mechanism (9), a heating mechanism (10), a lifting mechanism (11), a drive mechanism (12), an auxiliary heating mechanism (13), and an air supply mechanism (14). The upper side of the conveyor belt (1001) passes through the left and right positions of the mounting frame (1); the mounting frame (1) is equipped with legs (2) on both the front and rear sides; the mounting frame (1) is equipped with a bottom box (3) on the lower side and a top box (4) on the upper side. An exhaust box (5) is installed on the upper side of the top box (4), and the exhaust box (5) is connected to an external negative pressure suction pump and exhaust gas treatment pipeline; Mounting bracket (1) has a fixing bracket (6) installed on both the front and rear inner walls, and a stabilizing wheel set (7) is installed at each fixing bracket (6). The mounting frame (1) is provided with a distance adjustment mechanism (8) on the lower side, a speed adjustment mechanism (9) is provided on the upper side of the distance adjustment mechanism (8), and a heating mechanism (10) is provided on the upper side of the speed adjustment mechanism (9); the distance adjustment mechanism (8) is used to drive the heating mechanism (10) to rise and fall to adjust the drying distance, and the speed adjustment mechanism (9) is used to drive the heating mechanism (10) to rotate. The mounting bracket (1) is provided with a lifting mechanism (11) on the upper side, a driving mechanism (12) is provided on the lifting mechanism (11), and an auxiliary heating mechanism (13) is provided on the lower side of the driving mechanism (12). The lifting mechanism (11) is used to drive the auxiliary heating mechanism (13) to lift and lower, and the driving mechanism (12) is used to drive the auxiliary heating mechanism (13) to rotate. The exhaust box (5) is provided with a gas supply mechanism (14) in the middle for supplying hot air to the auxiliary heating mechanism (13), and the gas supply mechanism (14) is connected to an external hot air source.

2. The copper foil coating and drying equipment according to claim 1, characterized in that: The distance adjustment mechanism (8) includes a first mounting platform (81), a first lifting unit (82) and a first displacement frame (83); the first mounting platform (81) is fixed to the lower side of the mounting frame (1), and the first lifting unit (82) is installed at the first mounting platform (81); the first displacement frame (83) is installed at the moving part of the first lifting unit (82), and the speed adjustment mechanism (9) is located in the middle of the first displacement frame (83).

3. The copper foil coating and drying equipment according to claim 2, characterized in that: The speed regulating mechanism (9) includes a first enclosure frame (91), a first electric circular slide rail (92), and a first rotating frame (93); the first enclosure frame (91) is installed in the middle of the first displacement frame (83), and the first electric circular slide rail (92) is installed at the first enclosure frame (91); the first rotating frame (93) is installed at the rotating part of the first electric circular slide rail (92), and the heating mechanism (10) is located on the upper side of the first rotating frame (93).

4. The copper foil coating and drying equipment according to claim 3, characterized in that: The heating mechanism (10) includes a cooling module (101), a mounting ring (1011), a central heating group (102), an inner circumferential heating group (103), a middle layer heating group (104), and an outer circumferential heating group (105); multiple cooling modules (101) are mounted on the upper side of the first rotating frame (93), and at least three concentric mounting rings (1011) are provided on the upper side of the cooling end face of the cooling module (101); each mounting ring (1011) has a mounting ring (1011) mounted on its upper side. Multiple heating groups with consistent spacing; the heating group located at the central mounting ring (1011) is the central heating group (102), and the mounting ring (1011) around the central heating group (102) is provided with an inner circumferential heating group (103), a middle layer heating group (104) and an outer circumferential heating group (105) in sequence; the heating temperature of the central heating group (102), the inner circumferential heating group (103), the middle layer heating group (104) and the outer circumferential heating group (105) are all independently controlled.

5. The copper foil coating and drying equipment according to claim 1, characterized in that: The lifting mechanism (11) includes a second mounting platform (111), a second lifting unit (112), and a second displacement frame (113); the second mounting platform (111) is fixed on the upper side of the mounting frame (1), and the second lifting unit (112) is installed on the second mounting platform (111); the second displacement frame (113) is installed at the moving part of the second lifting unit (112), and the drive mechanism (12) is located in the middle of the second displacement frame (113).

6. The copper foil coating and drying equipment according to claim 5, characterized in that: The drive mechanism (12) includes a second enclosure frame (121), a second electric annular slide rail (122), and a second rotating frame (123); the second enclosure frame (121) is installed in the middle of the second displacement frame (113), and the second electric annular slide rail (122) is installed in the middle of the second enclosure frame (121); the second rotating frame (123) is installed at the rotating part of the second electric annular slide rail (122), and the auxiliary heating mechanism (13) is located on the lower side of the second rotating frame (123).

7. The copper foil coating and drying equipment according to claim 6, characterized in that: The auxiliary heating mechanism (13) includes a connecting frame (131), a jet pipe (132), a connecting pipe (133), and a rotary joint (134). The connecting frame (131) is installed on the lower side of the second rotating frame (123), and the jet pipe (132) is installed at the connecting frame (131). The connecting pipe (133) is installed on the upper side of the middle part of the jet pipe (132), and the rotary joint (134) is installed on the upper side of the connecting pipe (133). The rotating end of the rotary joint (134) is fixedly connected to the connecting pipe (133), the mounting end of the rotary joint (134) is fixed to the middle part of the second enclosure frame (121), and the input end of the rotary joint (134) is connected to the air supply mechanism (14).

8. The copper foil coating and drying equipment according to claim 7, characterized in that: The gas supply mechanism (14) includes an external pipe (141), a hose (142) and a solenoid valve (143); the external pipe (141) is installed in the middle of the exhaust box (5) and connected to the external heat source. The hose (142) and the solenoid valve (143) are connected in sequence on the lower side of the external pipe (141). The lower side of the solenoid valve (143) is connected to the upper end of the connecting pipe (133).

9. The copper foil coating and drying equipment according to claim 7, characterized in that: It also includes a monitoring mechanism (15), which includes an electric slide rail (151), a temperature sensor (152) and a distance sensor (153); the front and rear sides of the connecting frame (131) are equipped with synchronously controlled electric slide rails (151); an infrared temperature sensor (152) is installed at the moving part of the front electric slide rail (151), and a distance sensor (153) is installed at the moving part of the rear electric slide rail (151).

10. A method for drying copper foil coated with adhesive, based on the copper foil coating and drying equipment according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1: Feeding and positioning: The conveyor belt (1001) runs counterclockwise intermittently. During the pause, the copper foil is placed on the placement plate (1002). After being coated with glue at the glue coating station, the coated copper foil is sent into the drying space consisting of the bottom box (3), the mounting frame (1) and the top box (4). S2: Bottom heating and top auxiliary heating work together for drying: According to the preset program, the distance adjustment mechanism (8) drives the heating mechanism (10) to rise to the set distance, and the speed adjustment mechanism (9) drives the heating mechanism (10) to rotate; at the same time, the heating mechanism (10) is started, so that each heating group of the heating mechanism (10) runs at an independent preset temperature, forming a circular heat field with a radial temperature gradient; at the same time, the lifting mechanism (11) drives the auxiliary heating mechanism (13) to fall to the set position, the gas supply mechanism (14) supplies hot air to the auxiliary heating mechanism (13), and the driving mechanism (12) drives the auxiliary heating mechanism (13) to rotate, so as to perform rotary hot air auxiliary heating on the upper surface of the copper foil; The copper foil is heated and dried simultaneously on both sides by the combined action of the bottom rotating hot field and the top rotating hot gas auxiliary heating. S3: Monitoring and Control: During the drying process, the monitoring mechanism (15) rotates with the drive mechanism (12) to scan the adhesive layer on the upper surface of the copper foil, collect temperature data and deformation data in real time and feed them back to the control system to dynamically adjust the operating parameters of the adjusting mechanism (8), the speed regulating mechanism (9), the heating mechanism (10), the lifting mechanism (11), the drive mechanism (12) and the air supply mechanism (14); S4: Waste gas treatment and discharge: During the entire drying process, the exhaust box (5) continuously extracts the volatile gas in the drying space; after the drying process is completed, each mechanism is reset, and the conveyor belt (1001) starts stepping to move the dried copper foil out of the drying space.

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