Cathode formed foil primary drying equipment and operation method thereof

Abstract

The invention discloses primary drying equipment for cathode formed foil and an operation method of the primary drying equipment, and relates to the technical field of formed foil drying, the primary drying equipment comprises drying ovens and water absorption sponges, the drying ovens are symmetrically arranged, drying mechanisms for drying the formed foil are arranged in the drying ovens, first rotating grooves are formed in the inner walls of the drying ovens, and rotating rollers are rotationally arranged on the inner walls of the first rotating grooves; the outer wall of the rotating roller is sleeved with a water absorption sponge used for absorbing moisture, an extrusion mechanism is arranged on the inner wall of the first rotating groove, a preheating mechanism is arranged in the drying oven, and the preheating mechanism is arranged between the water absorption sponge and the drying mechanism. Moisture on the surface of the formed foil is absorbed through the rotating water absorption sponge, the squeezing mechanism is matched to squeeze moisture in the sponge, and cyclic utilization and continuous water removal of the sponge are achieved; and the formed foil is preheated at low temperature through the preheating mechanism, edge curling caused by direct high-temperature drying is avoided, and therefore the drying quality and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of cathode forming foil drying technology, and in particular to primary drying equipment and operating methods for cathode forming foil. Background Technology

[0002] Cathodic formation foil is a key raw material for aluminum electrolytic capacitors, and the drying process during its production has a crucial impact on the final product quality. In the production process of formation foil, after the preceding etching and formation wet processes, a large amount of moisture or electrolyte residue will adhere to the surface of the foil strip. It must be thoroughly removed through the drying process to ensure the smooth progress of subsequent processes and the storage stability of the product.

[0003] Currently, existing cathode-formed foil drying equipment typically employs direct heating drying, which uses a high-temperature airflow generated by heating elements to dry the foil surface. For example, Chinese patent document CN207991186U discloses a drying device for cathode-formed foil production, which achieves continuous drying of the foil by setting up a drying cylinder, drying nozzles, and a hot air circulation system. However, such direct drying devices have significant shortcomings in practical applications: when large water droplets or thick liquid films remain on the foil surface, relying solely on hot air evaporation consumes a large amount of heat energy, resulting in low energy utilization and low drying efficiency. Furthermore, the direct application of high-temperature airflow to the foil surface with high moisture content can easily generate localized stress due to rapid moisture evaporation, leading to quality problems such as edge curling and wrinkles, affecting product yield. Therefore, we propose a primary drying device for cathode-formed foil and its operating method. Summary of the Invention

[0004] The purpose of this invention is to provide a primary drying apparatus for cathodic foil and its operating method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a primary drying apparatus for cathodic electrodeposition foil, comprising:

[0006] The oven is symmetrically arranged and has a drying mechanism inside for drying the electrolytic foil.

[0007] The oven has an absorbent sponge, a first rotating groove on its inner wall, a rotating roller rotatably mounted on the inner wall of the first rotating groove, an absorbent sponge for absorbing moisture mounted on the outer wall of the rotating roller, a squeezing mechanism on the inner wall of the first rotating groove, and a preheating mechanism inside the oven, which is located between the absorbent sponge and the drying mechanism.

[0008] Preferably, the extrusion mechanism includes:

[0009] A rotating drum, wherein a second rotating groove is provided on the inner wall of the first rotating groove, the rotating drum is rotatably disposed inside the second rotating groove, and a rotating mechanism is provided between the rotating drum and the rotating roller;

[0010] Connecting holes, which are distributed throughout the outer wall of the rotating cylinder;

[0011] A connecting pipe is fixedly inserted into one end of the rotating cylinder. A first rotating hole is opened on the inner wall of the second rotating groove, and the connecting pipe is rotatably connected to the inner wall of the first rotating hole.

[0012] A suction device is installed on the outer wall of the oven, and the suction end of the suction device is inserted into the first rotating hole.

[0013] Preferably, the rotating mechanism includes:

[0014] A connecting cavity is formed in the inner wall of the oven. The other end of the rotating cylinder is fixedly connected to a first rotating shaft. The first rotating shaft is rotatably connected to the inner wall of the second rotating groove. One end of the first rotating shaft passes through the inner wall of the second rotating groove and extends into the interior of the connecting cavity.

[0015] The first gear is disposed inside the connecting cavity and is fixedly connected to one end of the first rotating shaft;

[0016] The second rotating shaft is rotatably connected to both ends of the rotating roller and rotatably connected to the inner wall of the first rotating groove. One end of the second rotating shaft passes through the inner wall of the first rotating groove and extends into the interior of the connecting cavity.

[0017] The second gear is disposed inside the connecting cavity and is fixedly connected to one end of the second rotating shaft. The outer wall of the second gear meshes with the outer wall of the first gear.

[0018] The first servo motor is mounted on the outer wall of the oven, and its output end is connected to the outer wall of the first gear for transmission.

[0019] Preferably, the drying mechanism includes a first air inlet slot, which is formed on the outer wall of the drying oven. A first air expansion chamber is formed on the inner wall of the first air inlet slot. A hot air blower is installed on the outer wall of the drying oven, and the output end of the hot air blower is inserted into the interior of the first air inlet slot.

[0020] Preferably, the preheating mechanism includes:

[0021] The second air expansion cavity is opened on the inner wall of the oven, and the inner wall of the second air expansion cavity is provided with a second air inlet groove;

[0022] The first air inlet is symmetrically opened on the inner wall of the second air inlet slot. The inner wall of the oven is symmetrically opened with the second air inlet. The interior of the second air inlet is connected to the interior of the first air inlet. The interior of the first air inlet is provided with a circulation mechanism for air supply.

[0023] Preferably, the circulation mechanism includes:

[0024] A movable rod is slidably connected to the inner wall of the first air inlet. A second piston block is provided at one end of the movable rod, and a first piston block is provided at the other end of the movable rod. A sliding mechanism is provided on the outer wall of one of the movable rods.

[0025] The first one-way valve is installed on the inner wall of the second air inlet.

[0026] The second one-way valve is installed on the inner wall of the first air inlet;

[0027] The hydraulic oil is disposed inside the connecting groove between the two first air inlets and between the two first piston blocks.

[0028] Preferably, the sliding mechanism includes:

[0029] A chute, wherein the chute is formed on the inner wall of the first air inlet;

[0030] The slider is fixedly connected to the outer wall of the movable rod, and the outer wall of the slider is slidably connected to the inner wall of the slide groove. A reciprocating mechanism for the slider to move back and forth in the slide groove is provided between the slider and the oven.

[0031] Preferably, the reciprocating mechanism includes:

[0032] The movable cavity is formed on the inner wall of the slide groove;

[0033] The turntable has a third rotating shaft rotatably connected to the inner wall of the movable cavity. The turntable is fixedly sleeved on the outer wall of the third rotating shaft, and the turntable and the third rotating shaft are not concentric.

[0034] An annular groove is formed on the side of the outer wall of the turntable. A retaining shaft is fixedly connected to the outer wall of the slider, and the retaining shaft is slidably disposed on the inner wall of the annular groove.

[0035] The second servo motor is mounted on the outer wall of the oven, and its output end is connected to one end of the third rotating shaft.

[0036] Preferably, one of the ovens has a connecting seat symmetrically fixedly connected to its outer wall, and the other oven has a support seat symmetrically fixedly connected to its bottom end. A movable seat is fixedly connected between the two connecting seats. Each of the two support seats has a limit groove on its outer wall. The movable seat is slidably connected between the two limit grooves. A hydraulic cylinder is installed at the bottom end of the other oven. The output end of the hydraulic cylinder is drivenly connected to the top end of the movable seat. A first connecting block is fixedly connected to each corner of one of the ovens. A guide rod is fixedly connected to the bottom end of the first connecting block. A second connecting block is fixedly connected to each side of the other oven. A guide hole is opened at the top end of the second connecting block. The guide rod is inserted into the inner wall of the guide hole. Connecting plates are symmetrically fixedly connected to the outer wall of the ovens. A guide roller is rotatably connected between the two connecting plates.

[0037] The present invention also provides a method for initial drying of cathodic foil, comprising the following steps:

[0038] Step 1: Place the chemically formed foil to be dried between two ovens. Then, the hydraulic cylinder works to drive the movable seat to descend. The descent of the movable seat drives the two connecting seats to descend, which in turn drives the oven above to descend until the two ovens are in contact. After completion, the drying preparation is complete. At this time, the hot air blower works and blows hot air between the two ovens through the first air inlet slot and the first air expansion chamber to dry the chemically formed foil between the two ovens.

[0039] Step 2: The formed foil, which enters between the two ovens, first comes into contact with two absorbent sponges. The first servo motor drives the first gear to rotate, which in turn drives the second gear to rotate. Simultaneously, the first gear drives the first rotating shaft to rotate, which in turn drives the rotating drum to rotate. The second gear drives the second rotating shaft to rotate, which in turn drives the rotating roller to rotate. As the rotating roller rotates, the absorbent sponge absorbs the moisture from the surface of the formed foil it is in contact with. Then, the rotating roller drives the absorbent sponge to rotate. At the part of the second rotating groove that contacts the absorbent sponge, the absorbent sponge is squeezed and deformed. At this time, the suction device works, and with the connection between the first rotating hole and the connecting pipe, a negative pressure is generated inside the rotating drum. With the connection of the connecting hole, the rotating drum draws the water squeezed out of the absorbent sponge into the rotating drum through the connecting hole, and then discharges it through the connecting pipe and the first rotating hole, so that the absorbent sponge can continuously absorb the moisture from the surface of the formed foil.

[0040] Step 3: The formed foil moves into the oven through the space between the two absorbent sponges. The second servo motor drives the third rotating shaft to rotate, which in turn drives the turntable to rotate. The rotation of the turntable changes the position of the annular groove. Through the mutual limiting and guiding of the annular groove and the locking shaft, the slider moves back and forth in the groove as the turntable rotates. The movement of the slider drives the corresponding movable rod to move. At this time, under the connection of hydraulic oil and the two first piston blocks, the two movable rods move back and forth. With the cooperation of the first and second one-way valves, the hot air between the two ovens passes through the second air inlet, the first one-way valve, the first air inlet, the second one-way valve, the second air inlet groove, and the second air expansion chamber in sequence. This allows the formed foil to be preheated by the low-temperature hot air blown out of the second air expansion chamber before it needs to be dried by the drying mechanism. After being preheated, the formed foil moves back to the position of the first air inlet groove and is dried by the high-temperature hot air.

[0041] The technical effects and advantages of this invention are as follows:

[0042] (1) By setting up the water-absorbing sponge, the water on the surface of the chemically formed foil passing between the two water-absorbing sponges will be absorbed by the water-absorbing sponge. At the same time, with the cooperation of the extrusion mechanism, the water-absorbing sponge that absorbs water will deform as it rotates to the middle position of the first rotating groove, so that the water absorbed in the water-absorbing sponge will be squeezed out. Thus, the rotating water-absorbing sponge can continuously absorb water on the surface of the chemically formed foil, so that the chemically formed foil can be wiped dry first and then dried, thereby ensuring the drying efficiency. At the same time, with the cooperation of the preheating mechanism, the chemically formed foil is preheated at a low temperature before drying, thereby avoiding the phenomenon of curling caused by direct high temperature drying of the chemically formed foil, thereby improving the drying quality.

[0043] (2) The present invention, through the setting of the circulation mechanism and with the cooperation of the sliding mechanism, enables the second servo motor to work and drive the third rotating shaft to rotate. The rotation of the third rotating shaft drives the turntable to rotate. The rotation of the turntable causes the position of the annular groove to change. Through the mutual limiting and guiding of the annular groove and the locking shaft, the slider moves back and forth in the sliding groove with the rotation of the turntable. The movement of the slider can drive the corresponding movable rod to move. At this time, with the connection of the hydraulic oil and the two first piston blocks, the two movable rods move back and forth. With the cooperation of the first one-way valve and the second one-way valve, the hot air between the two ovens passes through the second air inlet, the first one-way valve, the first air inlet, the second one-way valve, the second air inlet groove and the second air expansion chamber in sequence. This allows the electroformed foil to be preheated by the low-temperature hot air blown out of the second air expansion chamber before it needs to be dried by the drying mechanism. After preheating, the electroformed foil moves to the position of the first air inlet groove again and is dried by the high-temperature hot air. Attached Figure Description

[0044] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0045] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0046] Figure 2 This is a schematic cross-sectional view of the side of the oven of the present invention;

[0047] Figure 3 This is a schematic cross-sectional view of the oven structure of the present invention.

[0048] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at point A;

[0049] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B;

[0050] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating drum of the present invention;

[0051] Figure 7 This is a top-view cross-sectional view of the movable rod of the present invention;

[0052] Figure 8 This is a schematic diagram of the side cross-sectional structure of the turntable of the present invention;

[0053] Figure 9 This is a schematic diagram of the three-dimensional structure of the turntable of the present invention;

[0054] Figure 10 This is a front cross-sectional view of the movable seat of the present invention.

[0055] In the attached diagram: 101, drying oven; 201, first rotating trough; 202, rotating roller; 203, absorbent sponge; 204, second rotating trough; 205, rotating drum; 206, connecting hole; 207, connecting pipe; 208, first rotating hole; 209, suction device; 301, connecting cavity; 302, first rotating shaft; 303, second rotating shaft; 304, first gear; 305, second gear; 306, first servo motor; 401, first air inlet trough; 402, first air expansion cavity; 403, hot air blower; 501, second air inlet trough; 502, second air expansion cavity; 503, first air inlet hole; 504, second air inlet hole; 601, movable... 602. Moving rod; 603. First piston block; 604. Second piston block; 605. First check valve; 606. Second check valve; 607. Connecting groove; 708. Hydraulic oil; 701. Slide groove; 702. Slider; 703. Movable cavity; 704. Turntable; 705. Third rotating shaft; 706. Annular groove; 707. Snap shaft; 708. Second servo motor; 801. Support base; 802. Connecting base; 803. Movable base; 804. Limiting groove; 805. Hydraulic cylinder; 806. First connecting block; 807. Guide rod; 808. Second connecting block; 809. Guide hole; 810. Connecting plate; 811. Guide roller. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] This invention provides, for example Figures 1-10The cathode forming foil primary drying equipment shown includes an oven 101 and absorbent sponges 203. The oven 101 is symmetrically arranged, and a drying mechanism for drying the forming foil is installed inside the oven 101. A first rotating groove 201 is formed on the inner wall of the oven 101, and a rotating roller 202 is rotatably mounted on the inner wall of the first rotating groove 201. Absorbent sponges 203 for absorbing moisture are sleeved on the outer wall of the rotating roller 202. A squeezing mechanism is installed on the inner wall of the first rotating groove 201. A preheating mechanism is installed inside the oven 101, and the preheating mechanism is located between the absorbent sponges 203 and the drying mechanism. Through the arrangement of the absorbent sponges 203, the surface of the forming foil passing between the two absorbent sponges 203 is dried. Moisture is absorbed by the absorbent sponge 203. Simultaneously, with the assistance of the extrusion mechanism, the absorbent sponge 203, after rotating to the center of the first rotating groove 201, deforms under pressure, causing the absorbed moisture to be squeezed out. This allows the rotating absorbent sponge 203 to continuously absorb moisture from the surface of the electrolytic foil, enabling the electrolytic foil to undergo a wiping process before drying, thus ensuring drying efficiency. Furthermore, with the assistance of the preheating mechanism, the electrolytic foil is preheated at a low temperature before drying, preventing edge curling caused by direct high-temperature drying and improving drying quality.

[0058] The extrusion mechanism includes a rotating drum 205, connecting holes 206, connecting pipes 207, and a suction device 209. A second rotating groove 204 is formed on the inner wall of the first rotating groove 201. The rotating drum 205 is rotatably disposed inside the second rotating groove 204. A rotating mechanism is provided between the rotating drum 205 and the rotating roller 202. Connecting holes 206 are distributed throughout the outer wall of the rotating drum 205. The connecting pipe 207 is fixedly inserted into one end of the rotating drum 205. A first rotating hole 208 is formed on the inner wall of the second rotating groove 204. The connecting pipe 207 is rotatably connected to the inner wall of the first rotating hole 208. The suction device 209 is installed on the outer wall of the oven 101, and its suction end is inserted into the first rotating hole 208. The rotating mechanism includes a connecting cavity 301 and a second rotating shaft 3. 03. A first gear 304, a second gear 305, and a first servo motor 306 are connected. A connecting cavity 301 is formed in the inner wall of the oven 101. A first rotating shaft 302 is fixedly connected to the other end of the rotating drum 205. The first rotating shaft 302 is rotatably connected to the inner wall of the second rotating groove 204. One end of the first rotating shaft 302 passes through the inner wall of the second rotating groove 204 and extends into the interior of the connecting cavity 301. A first gear 304 is disposed inside the connecting cavity 301 and is fixedly connected to one end of the first rotating shaft 302. A second rotating shaft 303 is rotatably connected to both ends of the rotating roller 202 and is rotatably connected to the inner wall of the first rotating groove 201. One end of the second rotating shaft 303 passes through the inner wall of the first rotating groove 201 and extends into the connecting cavity 301. Inside the oven 101, the second gear 305 is located inside the connecting cavity 301. The second gear 305 is fixedly connected to one end of the second rotating shaft 303. The outer wall of the second gear 305 meshes with the outer wall of the first gear 304. The first servo motor 306 is mounted on the outer wall of the oven 101. The output end of the first servo motor 306 is connected to the outer wall of the first gear 304. The operation of the first servo motor 306 drives the first gear 304 to rotate. The rotation of the first gear 304 drives the second gear 305 to rotate together. At the same time, the first gear 304 drives the first rotating shaft 302 to rotate. The rotation of the first rotating shaft 302 drives the rotating drum 205 to rotate. The rotation of the second gear 305 drives the second rotating shaft 303 to rotate. The rotation of the second rotating shaft 303 drives the rotating drum 205 to rotate. As roller 202 rotates, the absorbent sponge 203 absorbs moisture from the surface of the formed foil it contacts. Then, the rotation of roller 202 drives the absorbent sponge 203 to rotate. At the point where the absorbent sponge 203 contacts the second rotating groove 204, it is compressed and deformed. At this time, the suction device 209 operates. Then, with the connection between the first rotating hole 208 and the connecting pipe 207, a negative pressure is generated inside the rotating drum 205. With the connection through the connecting hole 206, the rotating drum 205 draws water squeezed from the absorbent sponge 203 into itself through the connecting hole 206, and then discharges it through the connecting pipe 207 and the first rotating hole 208, allowing the absorbent sponge 203 to continuously absorb moisture from the surface of the formed foil.

[0059] The drying mechanism includes a first air inlet slot 401, which is located on the outer wall of the oven 101. A first air expansion chamber 402 is located on the inner wall of the first air inlet slot 401. A hot air blower 403 is installed on the outer wall of the oven 101. The output end of the hot air blower 403 is inserted into the first air inlet slot 401. The hot air blower 403 generates high-temperature hot air, which enters the space between the two ovens 101 through the first air inlet slot 401 and the first air expansion chamber 402 to dry the electroformed foil.

[0060] The preheating mechanism includes a second air expansion chamber 502 and a first air inlet 503. The second air expansion chamber 502 is located on the inner wall of the oven 101. A second air inlet groove 501 is formed on the inner wall of the second air expansion chamber 502. The first air inlet 503 is symmetrically formed on the inner wall of the second air inlet groove 501. Second air inlets 504 are symmetrically formed on the inner wall of the oven 101. The interior of the second air inlet 504 is connected to the interior of the first air inlet 503. A circulation mechanism for air supply is provided. After the high-temperature hot air is blown out from the first air expansion chamber 402, it will pass through the second air inlet 504, the first air inlet 503, the second air inlet slot 501 and the second air expansion chamber 502 in sequence and be blown out with the help of the circulation mechanism. At this time, the high-temperature hot air decreases in temperature as it flows through the long flow channel. The lower temperature hot air is then blown toward the forming foil to preheat it, so that the forming foil can be preheated before drying to avoid the occurrence of edge curling.

[0061] The circulation mechanism includes a movable rod 601, a first one-way valve 604, a second one-way valve 605, and hydraulic oil 607. The movable rod 601 is slidably connected to the inner wall of the first air inlet 503. A second piston block 603 is provided at one end of the movable rod 601, and a first piston block 602 is provided at the other end. A sliding mechanism is provided on the outer wall of one of the movable rods 601. The first one-way valve 604 is installed on the inner wall of the second air inlet 504, and the second one-way valve 605 is installed on the inner wall of the first air inlet 503. A connecting passage is opened between the two first air inlets 503. Hydraulic oil 607 is disposed inside the through groove 606 and between the two first piston blocks 602. The hydraulic oil 607 moves within the first air inlet 503 via the movable rod 601 and, with the cooperation of the second piston block 603, allows the high-temperature hot air in the oven 101 to enter the second air inlet 504, pass through the first one-way valve 604, and then enter the first air inlet 503. It then passes through the second one-way valve 605 and enters the second air inlet groove 501. This allows the high-temperature hot air to be cooled into low-temperature hot air and stably blown onto the forming foil to preheat it.

[0062] The sliding mechanism includes a slide groove 701 and a slider 702. The slide groove 701 is formed on the inner wall of the first air inlet 503. The slider 702 is fixedly connected to the outer wall of the movable rod 601. The outer wall of the slider 702 is slidably connected to the inner wall of the slide groove 701. A reciprocating mechanism is provided between the slider 702 and the oven 101 for the slider 702 to move back and forth in the slide groove 701. The reciprocating mechanism includes a movable cavity 703, a turntable 704, an annular groove 706, and a second servo motor 708. The movable cavity 703 is formed on the inner wall of the slide groove 701. A third rotating shaft 705 is rotatably connected to the inner wall of the movable cavity 703. A turntable 704 is fixedly sleeved on the outer wall of the third rotating shaft 705. The turntable 704 and the third rotating shaft 705 are not concentric. An annular groove 706 is formed on the side of the outer wall of the turntable 704. A retaining shaft 707 is fixedly connected to the outer wall of the slider 702. The retaining shaft 707 is slidably disposed on the inner wall of the annular groove 706. A second servo motor 708 is installed on the outer wall of the oven 101. The output end of the second servo motor 708 is connected to one end of the third rotating shaft 705 for transmission. The second servo motor 708 drives the third rotating shaft 705 to rotate, which in turn drives the turntable 704 to rotate. The rotation of the turntable 704 changes the position of the annular groove 706. Through the mutual limiting and guiding of the annular groove 706 and the retaining shaft 707, the slider 702 moves back and forth within the slide groove 701 as the turntable 704 rotates. The movement of the slider 702 drives the corresponding movable rod 601 to move. At this time, with the hydraulic oil 607 connected to the two first piston blocks 602, the two movable rods 601 move back and forth, thus... The movable lever 601, in cooperation with the first one-way valve 604 and the second one-way valve 605, causes the hot air between the two ovens 101 to pass sequentially through the second air inlet 504, the first one-way valve 604, the first air inlet 503, the second one-way valve 605, the second air inlet slot 501, and the second air expansion chamber 502. This allows the formed foil to be preheated by the low-temperature hot air blown out of the second air expansion chamber 502 before it needs to be dried by the drying mechanism. After being preheated, the formed foil moves back to the position of the first air inlet slot 401 and is dried by the high-temperature hot air.

[0063] One of the ovens 101 has a connecting seat 802 symmetrically fixedly connected to its outer wall, and the other oven 101 has a support seat 801 symmetrically fixedly fixedly connected to its bottom end. A movable seat 803 is fixedly connected between the two connecting seats 802. Limit grooves 804 are formed on the outer walls of both support seats 801, and the movable seat 803 is slidably connected between the two limit grooves 804. A hydraulic cylinder 805 is installed at the bottom end of the other oven 101, and the output end of the hydraulic cylinder 805 is connected to the top end of the movable seat 803. A first connecting block 806 is fixedly connected to each corner of one of the ovens 101, and a guide rod 807 is fixedly connected to the bottom end of the first connecting block 806. A second connecting block 808 is fixedly connected to each side of the other oven 101, and a guide hole 809 is formed at the top end of the second connecting block 808, into which the guide rod 807 is inserted. The inner wall of the oven 101 and the outer wall of the oven 101 are symmetrically fixed with connecting plates 810. A guide roller 811 is rotatably connected between the two connecting plates 810. The chemically formed foil to be dried is placed between the two ovens 101. Then, the hydraulic cylinder 805 works to drive the movable seat 803 to descend. The descent of the movable seat 803 drives the two connecting seats 802 to descend. The descent of the connecting seats 802 drives the oven 101 located above to descend until the two ovens 101 are in contact. After completion, the drying is ready. At the same time, the guide roller 811 can stably guide the moving chemically formed foil, ensuring the stable operation of the drying work. The hydraulic cylinder 805, the second servo motor 708, the first servo motor 306, the hot air blower 403, and the suction device 209 are electrically connected to the external power supply through external switches, which makes it easy for the operator to control them separately, improving the safety and convenience of operation.

[0064] The present invention also provides a method for initial drying of cathodic foil, comprising the following steps:

[0065] Step 1: Place the chemically formed foil to be dried between two ovens 101. Then, the hydraulic cylinder 805 works to drive the movable seat 803 to descend. The descent of the movable seat 803 drives the two connecting seats 802 to descend. The descent of the connecting seats 802 drives the oven 101 located above to descend until the two ovens 101 are in contact. After completion, drying is ready. At this time, the hot air blower 403 works and blows hot air between the two ovens 101 through the first air inlet slot 401 and the first air expansion chamber 402 to dry the chemically formed foil between the two ovens 101.

[0066] Step 2: The formed foil, entering the space between the two drying ovens 101, first contacts two absorbent sponges 203. The first servo motor 306 drives the first gear 304 to rotate, which in turn drives the second gear 305. Simultaneously, the first gear 304 drives the first rotating shaft 302 to rotate, which in turn drives the rotating drum 205 to rotate. The second gear 305 drives the second rotating shaft 303 to rotate, which in turn drives the rotating roller 202 to rotate. As the rotating roller 202 rotates, the absorbent sponges 203 absorb the moisture from the surface of the formed foil in contact with it. Then... The rotating roller 202 drives the water-absorbing sponge 203 to rotate. At the part where the second rotating groove 204 contacts the water-absorbing sponge 203, the water-absorbing sponge 203 is squeezed and deformed. At this time, the suction device 209 works. Then, under the connection of the first rotating hole 208 and the connecting pipe 207, a negative pressure is generated inside the rotating drum 205. Under the connection of the connecting hole 206, the rotating drum 205 sucks the water squeezed out of the water-absorbing sponge 203 into the rotating drum 205 through the connecting hole 206. Then, it is discharged through the connecting pipe 207 and the first rotating hole 208, so that the water-absorbing sponge 203 can continuously absorb the moisture on the surface of the foil.

[0067] Step 3: The formed foil moves into the oven 101 through the space between the two absorbent sponges 203. The second servo motor 708 drives the third rotating shaft 705 to rotate, which in turn drives the turntable 704 to rotate. The rotation of the turntable 704 changes the position of the annular groove 706. Through the mutual limiting and guiding of the annular groove 706 and the retaining shaft 707, the slider 702 moves back and forth within the groove 701 as the turntable 704 rotates. The movement of the slider 702 drives the corresponding movable rod 601 to move. At this time, under the connection of the hydraulic oil 607 and the two first piston blocks 602... This causes the two movable rods 601 to move back and forth. With the cooperation of the first one-way valve 604 and the second one-way valve 605, the movable rods 601 cause the hot air between the two ovens 101 to pass through the second air inlet 504, the first one-way valve 604, the first air inlet 503, the second one-way valve 605, the second air inlet slot 501, and the second air expansion chamber 502 in sequence. This causes the formed foil to be preheated by the low-temperature hot air blown out of the second air expansion chamber 502 before it needs to be dried by the drying mechanism. After being preheated, the formed foil moves back to the position of the first air inlet slot 401 and is dried by the high-temperature hot air.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A primary drying device for cathodic foil, characterized in that, include: The oven (101) is symmetrically arranged, and the oven (101) is provided with a drying mechanism for drying the electrolytic foil inside; The oven (101) has a first rotating groove (201) on its inner wall, a rotating roller (202) is rotatably mounted on the inner wall of the first rotating groove (201), and a water-absorbing sponge (203) for absorbing moisture is sleeved on the outer wall of the rotating roller (202). The inner wall of the first rotating groove (201) is provided with a squeezing mechanism. The oven (101) is provided with a preheating mechanism, which is located between the water-absorbing sponge (203) and the drying mechanism.

2. The primary drying equipment for cathodic foil according to claim 1, characterized in that, The extrusion mechanism includes: A rotating drum (205) has a second rotating groove (204) on the inner wall of the first rotating groove (201). The rotating drum (205) is rotatably disposed inside the second rotating groove (204). A rotating mechanism is provided between the rotating drum (205) and the rotating roller (202). A connecting hole (206) is provided on the outer wall of the rotating cylinder (205); A connecting pipe (207) is fixedly inserted into one end of a rotating cylinder (205). A first rotating hole (208) is provided on the inner wall of the second rotating groove (204). The connecting pipe (207) is rotatably connected to the inner wall of the first rotating hole (208). A suction device (209) is installed on the outer wall of the oven (101), and the suction end of the suction device (209) is inserted into the first rotating hole (208).

3. The primary drying equipment for cathodic foil according to claim 2, characterized in that, The rotating mechanism includes: A connecting cavity (301) is formed on the inner wall of the oven (101). The other end of the rotating cylinder (205) is fixedly connected to a first rotating shaft (302). The first rotating shaft (302) is rotatably connected to the inner wall of the second rotating groove (204). One end of the first rotating shaft (302) passes through the inner wall of the second rotating groove (204) and extends into the interior of the connecting cavity (301). The first gear (304) is disposed inside the connecting cavity (301) and is fixedly connected to one end of the first rotating shaft (302); The second rotating shaft (303) is rotatably connected to both ends of the rotating roller (202), and is rotatably connected to the inner wall of the first rotating groove (201). One end of the second rotating shaft (303) passes through the inner wall of the first rotating groove (201) and extends into the interior of the connecting cavity (301). The second gear (305) is disposed inside the connecting cavity (301), and the second gear (305) is fixedly connected to one end of the second rotating shaft (303). The outer wall of the second gear (305) meshes with the outer wall of the first gear (304). The first servo motor (306) is mounted on the outer wall of the oven (101), and the output end of the first servo motor (306) is connected to the outer wall of the first gear (304) for transmission.

4. The primary drying equipment for cathodic foil according to claim 3, characterized in that, The drying mechanism includes a first air inlet slot (401), which is opened on the outer wall of the oven (101). The inner wall of the first air inlet slot (401) is provided with a first air expansion chamber (402). A hot air blower (403) is installed on the outer wall of the oven (101), and the output end of the hot air blower (403) is inserted into the interior of the first air inlet slot (401).

5. The primary drying equipment for cathodic foil according to claim 4, characterized in that, The preheating mechanism includes: The second air expansion cavity (502) is opened on the inner wall of the oven (101), and the inner wall of the second air expansion cavity (502) is provided with a second air inlet groove (501). The first air inlet (503) is symmetrically opened on the inner wall of the second air inlet slot (501). The inner wall of the oven (101) is symmetrically opened with a second air inlet (504). The interior of the second air inlet (504) is connected to the interior of the first air inlet (503). The interior of the first air inlet (503) is provided with a circulation mechanism for air supply.

6. The primary drying equipment for cathodic foil according to claim 5, characterized in that, The circulation mechanism includes: A movable rod (601) is slidably connected to the inner wall of the first air inlet (503). A second piston block (603) is provided at one end of the movable rod (601), and a first piston block (602) is provided at the other end of the movable rod (601). A sliding mechanism is provided on the outer wall of one of the movable rods (601). The first one-way valve (604) is installed on the inner wall of the second air inlet (504); The second one-way valve (605) is installed on the inner wall of the first air inlet (503); Hydraulic oil (607) is provided with a connecting groove (606) between the two first air inlets (503), the hydraulic oil (607) is disposed inside the connecting groove (606), and the hydraulic oil (607) is disposed between the two first piston blocks (602).

7. The primary drying equipment for cathodic foil according to claim 6, characterized in that, The sliding mechanism includes: A chute (701) is formed on the inner wall of the first air inlet (503); The slider (702) is fixedly connected to the outer wall of the movable rod (601). The outer wall of the slider (702) is slidably connected to the inner wall of the slide groove (701). A reciprocating mechanism for the slider (702) to move back and forth in the slide groove (701) is provided between the slider (702) and the oven (101).

8. The primary drying equipment for cathodic foil according to claim 7, characterized in that, The reciprocating mechanism includes: The movable cavity (703) is formed on the inner wall of the slide groove (701); The turntable (704) has a third rotating shaft (705) rotatably connected to the inner wall of the movable cavity (703). The turntable (704) is fixedly sleeved on the outer wall of the third rotating shaft (705). The turntable (704) and the third rotating shaft (705) are not concentric. An annular groove (706) is formed on the side of the outer wall of the turntable (704). A retaining shaft (707) is fixedly connected to the outer wall of the slider (702). The retaining shaft (707) is slidably disposed on the inner wall of the annular groove (706). The second servo motor (708) is mounted on the outer wall of the oven (101), and the output end of the second servo motor (708) is connected to one end of the third rotating shaft (705) for transmission.

9. The primary drying equipment for cathodic foil according to claim 8, characterized in that, One of the ovens (101) has a connecting seat (802) symmetrically fixedly connected to its outer wall, and the other oven (101) has a support seat (801) symmetrically fixedly connected to its bottom end. A movable seat (803) is fixedly connected between the two connecting seats (802). Limiting grooves (804) are formed on the outer walls of both support seats (801). The movable seat (803) is slidably connected between the two limiting grooves (804). A hydraulic cylinder (805) is installed at the bottom end of the other oven (101). The output end of the hydraulic cylinder (805) is connected to the top end of the movable seat (803) via a transmission connection. Next, a first connecting block (806) is fixedly connected to the corner of one of the ovens (101), and a guide rod (807) is fixedly connected to the bottom end of the first connecting block (806). A second connecting block (808) is fixedly connected to the side of the other oven (101), and a guide hole (809) is opened at the top of the second connecting block (808). The guide rod (807) is inserted into the inner wall of the guide hole (809). A connecting plate (810) is symmetrically fixedly connected to the outer wall of the oven (101), and a guide roller (811) is rotatably connected between the two connecting plates (810).

10. The method for initial drying of cathodic foil according to claim 9, characterized in that, Includes the following steps: Step 1: Place the formed foil to be dried between two ovens (101). Then, the hydraulic cylinder (805) works to drive the movable seat (803) to descend. The descent of the movable seat (803) drives the two connecting seats (802) to descend. The descent of the connecting seats (802) drives the oven (101) located above to descend until the two ovens (101) are in contact. After completion, the drying preparation is completed. At this time, the hot air blower (403) works and blows hot air between the two ovens (101) through the first air inlet slot (401) and the first air expansion chamber (402) to dry the formed foil between the two ovens (101). Step 2: The formed foil, placed between the two ovens (101), first contacts two absorbent sponges (203). The first servo motor (306) drives the first gear (304) to rotate, which in turn drives the second gear (305). Simultaneously, the first gear (304) drives the first rotating shaft (302) to rotate, which in turn drives the rotating drum (205). The second gear (305) then drives the second rotating shaft (303) to rotate, which in turn drives the rotating roller (202). As the rotating roller (202) rotates, the absorbent sponges (203) absorb the moisture from the surface of the formed foil in contact with it. Then, the foil rotates... The rotation of the roller (202) drives the water-absorbing sponge (203) to rotate. In the part where the second rotating groove (204) contacts the water-absorbing sponge (203), the water-absorbing sponge (203) is squeezed and deformed. At this time, the suction device (209) works, and then, under the connection of the first rotating hole (208) and the connecting pipe (207), a negative pressure is generated inside the rotating cylinder (205). Under the connection of the connecting hole (206), the rotating cylinder (205) sucks the water squeezed out of the water-absorbing sponge (203) into the rotating cylinder (205) through the connecting hole (206), and then discharges it through the connecting pipe (207) and the first rotating hole (208), so that the water-absorbing sponge (203) can continuously absorb the moisture on the surface of the foil. Step 3: The formed foil moves into the oven (101) through the space between the two absorbent sponges (203). The second servo motor (708) drives the third rotating shaft (705) to rotate. The rotation of the third rotating shaft (705) drives the turntable (704) to rotate. The rotation of the turntable (704) changes the position of the annular groove (706). Through the mutual limiting and guiding of the annular groove (706) and the retaining shaft (707), the slider (702) moves back and forth in the slide groove (701) as the turntable (704) rotates. The movement of the slider (702) drives the corresponding movable rod (601) to move. At this time, the hydraulic oil (607) and the two first piston blocks (602) are in motion. Under the connection, the two movable rods (601) move back and forth. With the cooperation of the first one-way valve (604) and the second one-way valve (605), the movable rods (601) move back and forth, so that the hot air between the two ovens (101) passes through the second air inlet (504), the first one-way valve (604), the first air inlet (503), the second one-way valve (605), the second air inlet slot (501), and the second air expansion chamber (502) in sequence. This allows the formed foil to be preheated by the low-temperature hot air blown out of the second air expansion chamber (502) before it needs to be dried by the drying mechanism. After being preheated, the formed foil moves back to the position of the first air inlet slot (401) and is dried by the high-temperature hot air.

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