CN115574579B - Air knife structure and copper foil oxidation preventing device - Google Patents
Air knife structure and copper foil oxidation preventing device Download PDFInfo
- Publication number
- CN115574579B CN115574579B CN202211101223.8A CN202211101223A CN115574579B CN 115574579 B CN115574579 B CN 115574579B CN 202211101223 A CN202211101223 A CN 202211101223A CN 115574579 B CN115574579 B CN 115574579B
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- copper foil
- roller
- air knife
- assembly
- air
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000011889 copper foil Substances 0.000 title claims abstract description 68
- 230000003647 oxidation Effects 0.000 title claims abstract description 52
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000007664 blowing Methods 0.000 claims abstract description 35
- 230000002265 prevention Effects 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000003064 anti-oxidating effect Effects 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 25
- 206010066054 Dysmorphism Diseases 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 13
- 239000011888 foil Substances 0.000 abstract description 6
- 238000002845 discoloration Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 210000005056 cell body Anatomy 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model discloses an air knife structure and a copper foil oxidation preventing device, comprising: an oxidation prevention tank (1), a liquid spraying pipe assembly (2), an anode plate assembly (3), a roller system transmission assembly (4) and a pair of air knife structures according to any one of claims 1-4, wherein the liquid spraying pipe assembly, the anode plate assembly and the roller system transmission assembly are arranged in the oxidation prevention tank, and the pair of air knife structures are arranged above the oxidation prevention tank. The utility model has the beneficial effects that an asymmetric flow dividing structure is adopted, the first air blowing groove blows liquid and dries in a fast way, the second air blowing groove blows dry in a slow way, the drying effect is good, the air blowing and drying are integrated, and the size of the whole structure of the foil producing machine is reduced; the copper foil and the air knife pass through the air knife almost vertically, so that the influence of gravity is eliminated, the air blowing balance is good, and the shake of the copper foil is reduced; the distance between the anode plate and the copper foil is quickly adjustable, so that the anti-oxidation requirement of the copper foil with different thicknesses and different speeds can be met; after the structure is subjected to oxidation prevention treatment, the copper foil is baked for 30min at 150 ℃ and does not have oxidation discoloration.
Description
Technical Field
The utility model relates to the technical field of copper foil production equipment, in particular to an air knife structure and an electrolytic copper foil oxidation preventing device.
Background
Electrolytic copper foil is an important material for manufacturing Copper Clad Laminate (CCL), printed Circuit Board (PCB) and lithium ion battery. In the current high-speed development of the electronic information industry, the electrolytic copper foil is called a 'neural network' for transmitting and communicating signals and power of electronic products.
The electrolytic copper foil production is a process combining thousands of tiny links, and in all the process, the oxidation prevention treatment of qualified copper foil is a critical process. The performance of the copper foil on the terminal equipment is directly determined, and the performance and quality of the terminal equipment are directly affected. In the copper foil production process, after the raw foil machine is stripped off by a cathode roller, the semi-finished copper foil is subjected to the operations of anti-oxidation liquid spraying, passivation, liquid extrusion and hot air drying in sequence, so that the finished copper foil with the anti-oxidation effect can be obtained. In this process, a series of technical problems need to be solved, so that a qualified product is obtained.
In the prior art, the anti-oxidation process of the electrolytic copper foil is to convey the electrolytic copper foil to an anti-oxidation tank, and perform anti-oxidation treatment on the electrolytic copper foil in the anti-oxidation tank, but the problems of short anti-oxidation time, poor anti-oxidation effect and the like often exist. Meanwhile, the demands of customers on products are diversified, and due to the fact that technological parameters of copper foils with different thicknesses are required to be adjusted, the exchange period of the copper foils is short, and when the products are changed or continuous production is carried out, the corresponding equipment debugging time is reduced, so that a set of anti-oxidation device capable of realizing rapid adjustment is needed.
The air knife is needed to carry out hot air drying operation on the copper foil in the oxidation prevention process, the air speed cannot be adjusted by the existing air knife structure, and the drying effect is poor.
Chinese patent publication No. CN207610521U discloses a novel air knife air supply device, including oxidation prevention groove, guide roll, crowded liquid roller and coiling mechanism, the guide roll is located the copper foil output department of processing through oxidation prevention groove, crowded liquid roller next-door neighbour set up in the upper portion of guide roll, still is equipped with air supply device, air supply device includes air heater, air knife and hot-blast line, and the air knife is located between crowded liquid roller and the coiling mechanism, and air supply device heats the copper foil surface through the air knife by the hot-blast line through the hot-blast line by the hot-blast line produced hot-blast line, and the distance between anode plate and the copper foil can't be adjusted to this patent's oxidation prevention groove, and the hot-blast that the air knife blown out also can't be adjusted.
The Chinese patent publication No. CN205803570U discloses an air knife device for a photovoltaic solder strip, which comprises an air knife rest, an air knife set and a high-pressure air source, wherein the air knife set is formed by combining two air knives; the air knife comprises an air knife body, an air inlet and an air duct; the air knife body consists of a semicircular section, a straight section and a conical section; an air inlet is formed in the straight section of the air knife body and is connected with a high-pressure air source through an air pipe; the air duct is communicated with the air inlet, passes through the straight section and the conical section of the air knife body, and the air outlet of the air duct is positioned at the bottom of the conical section; the air duct is a broken line type air duct. The high pressure air flow blown out by the patent is easy to hurt the surface of the copper foil.
The Chinese patent publication No. CN213067009U discloses a double-air knife device, which comprises an air knife seat, a first air knife plate, a second air knife plate, a third air knife plate, a first air inlet part and a second air inlet part, wherein the first air knife plate, the second air knife plate and the third air knife plate are arranged on the air knife seat, the first air inlet part and the second air inlet part are arranged at two ends of the air knife seat, the air knife seat is provided with an air inlet channel, a first air channel is formed between the first air knife plate and the second air knife plate, the first air channel is provided with a first long-shaped air outlet, a second air channel is formed between the second air knife plate and the third air knife plate, the second air channel is provided with a second long-shaped air outlet, the first air inlet part is provided with a first air inlet, and the second air inlet part is provided with a second air inlet; the first air knife plate or the second air knife plate protrudes into the first air duct to form a first turbulent flow part, and the second air knife plate or the third air knife plate protrudes into the second air duct to form a second turbulent flow part. Although the patent adopts the double air channels and the two air outlets to prevent water brought up by one air outlet from splashing to the surface of the dried glass in the drying process, the two air channels are symmetrically distributed, the flow velocity of wind in the two air channels is the same, and the air flow is stable, but the time for the copper foil to pass through the air outlets is short, so that the drying effect cannot be ensured.
Disclosure of Invention
The utility model aims to solve the technical problems that the drying effect of an air knife structure in the copper foil oxidation prevention process is poor, the structure of an oxidation prevention groove is fixed and cannot be adjusted, and the air knife structure and the copper foil oxidation prevention device are provided.
The technical scheme of the utility model is as follows: the utility model provides an air knife structure, includes the casing and is located the curved cavity of casing, be equipped with in the curved cavity and divide into the reposition of redundant personnel structure of two with curved cavity, the reposition of redundant personnel structure includes the baffle that one end and curved cavity bottom are connected, the other end of baffle expands outward has the dysmorphism structure that matches with curved cavity's profile, form first wind channel and second wind channel between dysmorphism structure and the cavity, the middle part both sides of dysmorphism structure are equipped with the arc buffer of inwards contracting, form between dysmorphism structure's end and the cavity with the external communicating first groove of blowing of casing and second groove of blowing, the partial shrink that dysmorphism structure is close to first groove of blowing and second groove of blowing forms first buffer and second buffer respectively, the area of first buffer is less than the area of second buffer, first groove width of blowing is less than the second groove width of blowing.
The improvement of the scheme is that the wind speed sensor is arranged in the first buffer zone, and the temperature sensor is arranged in the second buffer zone.
In the scheme, the special-shaped structure is in a downward inclined posture.
In the scheme, the width of the first blowing groove is 0.2-mm-0.5 mm, and the width of the second blowing groove is 0.8-mm-1.5 mm.
In the scheme, the shell is made of aluminum alloy, and the outer surface of the shell is coated with heat-insulating materials.
Copper foil oxidation preventing device includes: the anti-oxidation device comprises an anti-oxidation tank, a liquid spraying pipe assembly, an anode plate assembly, a roller system transmission assembly and a pair of air knife structures, wherein the liquid spraying pipe assembly, the anode plate assembly and the roller system transmission assembly are arranged in the anti-oxidation tank, and the pair of air knife structures are positioned above the anti-oxidation tank.
In the above-mentioned scheme the oxidation prevention groove includes the cell body, hydrojet pipe subassembly and roller system drive assembly install between cell body both sides limit, be equipped with the overflow board that is located behind the roller system drive assembly in the cell body, the cell body bottom is equipped with the leakage fluid dram that is located overflow board the place ahead and the back flow that is located overflow board rear, front shroud, well apron and back shroud are installed to the cell body top.
In the scheme, the spray pipe assembly comprises a spray pipe, one end of the spray pipe is communicated with the outside through a valve, a plug is arranged at the other end of the spray pipe in a sealing mode, a fan-shaped adjusting plate is fixedly connected onto the spray pipe, an arc-shaped groove is formed in the fan-shaped adjusting plate, and the arc-shaped groove is connected with the groove body through a screw.
In the above-mentioned scheme the anode plate subassembly includes anode plate and last anode plate down, the anode plate includes the horizontal plate down, the both ends of horizontal plate rigid coupling respectively has first perpendicular board, offer the waist type groove of vertical distribution on the first perpendicular board, go up the anode plate and include the horizontal plate and be located the second perpendicular board at horizontal plate both ends, the second perpendicular board passes through screw and waist type groove cooperation and is connected.
In the above-mentioned scheme roller system drive assembly includes conductive roller and vice roller, conductive roller installs on first bearing frame, action wheel, speed reducer and servo motor are installed to conductive roller's one end, vice roller is installed on the second bearing frame, driven wheel is installed to vice roller's one end, driven wheel passes through the belt and is connected with the action wheel transmission.
The improvement of above-mentioned scheme is still including crowded liquid roller subassembly, crowded liquid roller subassembly is including being located the crowded liquid roller at roller system drive assembly rear, crowded liquid roller both ends are installed on the third bearing frame, the rigid coupling has the slider in the third bearing frame outside, slider sliding connection has the horizontal guide rail, the rigid coupling has the mounting panel in the horizontal guide rail outside, be equipped with the cylinder on the mounting panel, be equipped with the ejector pad on the piston rod of cylinder, the ejector pad is just right with the side of third bearing frame.
The utility model has the beneficial effects that an asymmetric flow dividing structure is adopted, the first air blowing groove blows liquid and dries in a fast way, the second air blowing groove blows dry in a slow way, the drying effect is good, the air blowing and drying are integrated, and the size of the whole structure of the foil producing machine is reduced; the copper foil and the air knife pass through the air knife almost vertically, so that the influence of gravity is eliminated, the air blowing balance is good, and the shake of the copper foil is reduced; the angle of the spray pipe is adjustable, the spray direction can be adjusted during production, the flow is adjustable, and the oxidation prevention effect can be ensured; the distance between the anode plate and the copper foil is quickly adjustable, so that the anti-oxidation requirement of the copper foil with different thicknesses and different speeds can be met; after the structure is subjected to oxidation prevention treatment, the copper foil is baked for 30min at 150 ℃ and does not have oxidation discoloration.
Drawings
FIG. 1 is a schematic view of an electrolytic copper foil oxidation preventing apparatus;
FIG. 2 is a schematic structural view of an oxidation preventing tank;
FIG. 3 is a schematic structural view of a spray tube assembly;
figure 4 is a schematic structural view of an oxidation-protected anode plate assembly;
FIG. 5 is a schematic view of the configuration of the roller train transmission assembly;
FIG. 6 is a schematic structural view of a wringer roller assembly;
FIG. 7 is a structural cross-sectional view of the hot air knife;
FIG. 8 is a cross-sectional view of a preferred embodiment of a hot air duct;
in the figure, 1, an oxidation preventing tank, 11, a tank body, 12, an overflow plate, 13, a front cover plate, 14, a middle cover plate, 15, a rear cover plate, 16, a waste liquid pipe, 17, a return pipe, 2, a liquid spraying pipe assembly, 21, a liquid spraying pipe, 22, a fan-shaped adjusting plate, 23, a plug, 24, a valve, 3, an anode plate assembly, 31, a lower anode plate, 32, an upper anode plate, 33, a screw, 4, a roller system transmission assembly, 41, a conductive roller, 42, a secondary roller, 43, a first bearing seat, 44, a second bearing seat, 45, a driven roller, 46, a belt, 47, a speed reducer, 48, a servo motor, 5, a liquid squeezing roller assembly, 51, a liquid squeezing roller, 52, a third bearing seat, 53, a slide block, 54, a guide rail, 55, a mounting plate, 56, a cylinder, 57, a push block, 58, a rubber, 6, a wind knife, 61, a housing, 62, a curved cavity, 63, a partition plate, 64, a first wind channel, 65, a second wind channel, 66, a special-shaped structure, 67, a first buffer zone, 68, a second buffer zone, 69, a first buffer zone 612, a first wind sensor, a second wind sensor, a copper foil, a 7, and a wind sensor.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in the following in connection with examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. Based on the embodiments of the present utility model, all other embodiments of the utility model are within the scope of the present utility model for those of ordinary skill in the art without making any inventive effort.
As shown in figure 1, the electrolytic copper foil oxidation preventing device comprises an oxidation preventing tank 1, a spray pipe assembly 2 is arranged at a side hole of the oxidation preventing tank, an anode plate assembly 3 is arranged at the middle part of the tank, a roller system transmission assembly 4 is arranged in the tank, a liquid squeezing roller assembly 5 is closely followed behind the roller system transmission assembly, copper foil upwards passes through symmetrically arranged air knives 6, copper foil 7 enters the oxidation preventing tank after being stripped by a cathode roller, the copper foil horizontally passes through the anode plate, a small amount of the roller system transmission assembly is immersed in oxidation preventing liquid through the roller system transmission assembly arranged in the oxidation preventing tank and used for transmitting the copper foil, the copper foil bypasses the roller system transmission assembly and is transmitted to the air knives, the roller system transmission assembly comprises a plurality of transmission rollers, and the copper foil is approximately vertically upwards transmitted to the hot air knives.
After being conveyed to the oxidation preventing tank, the electrolytic copper foil is conveyed by a roller system transmission assembly in the oxidation preventing tank, and after bypassing the roller system transmission assembly, the electrolytic copper foil is conveyed out of the oxidation preventing tank to an air knife drying process. The electrolytic copper foil is conveyed in the oxidation prevention tank through the roller system transmission assembly, so that the oxidation prevention time of the electrolytic copper foil in the oxidation prevention tank is increased, and the oxidation prevention performance of the electrolytic copper foil is improved.
As shown in figure 2, preferably, the oxidation preventing tank is formed by welding transparent plastics, the tank body 11 is provided with a roller system abdicating tank and a spray pipe mounting hole, the rear side of the tank body is provided with an overflow baffle 12, the overflow baffle is provided with a row of uniformly distributed overflow holes, the bottom of the tank body is formed by splicing four plates, a waste liquid pipe 16 is arranged at a liquid outlet, the liquid outlet is provided with a liquid containing tank lowest position, the rear of the overflow baffle is provided with a circulating opening, the lower part of the overflow baffle is provided with an oxidation preventing liquid backflow pipe 17, the oxidation preventing tank comprises a front cover plate 13, a middle cover plate 14 and a rear cover plate 15, the three cover plates are provided with mounting and dismounting handles, the bottom of the overflow baffle is provided with a welding baffle, and the bottom of the overflow baffle is limited by adopting a clamping type convenient maintenance and taking and placing.
As shown in FIG. 3, preferably, the spray pipe 21 of the spray pipe assembly is made of plastic, a plurality of round holes with the aperture of 1.5-3mm are uniformly distributed on the spray pipe assembly, the spray coverage surface of the spray pipe assembly exceeds the width of copper foil, the tail end of the spray pipe assembly is welded with a fan-shaped adjusting plate 22 and a sealing plug 23, the fan-shaped adjusting plate is provided with an arc-shaped groove, the arc-shaped adjusting plate is fixed on the side surface of the anti-oxidation groove through a screw and used for adjusting the spray angle to adapt to the passivation requirement of the copper foil, and the liquid inlet side of the spray pipe is provided with a valve 24, preferably a manual ball valve, and the liquid inlet flow under different process parameters is controlled.
As shown in fig. 4, the anode plate assembly comprises a lower anode plate 31 and an upper anode plate 32, wherein the lower anode plate comprises a horizontal plate, two ends of the horizontal plate are respectively and fixedly connected with a first vertical plate, a vertically distributed waist-shaped slot is formed in the first vertical plate, the upper anode plate comprises a horizontal plate and a second vertical plate positioned at two ends of the horizontal plate, and the second vertical plate is connected with the waist-shaped slot in a matched manner through screws. The upper anode plate moves in the waist-shaped slot range of the lower anode plate, the distance between the anode plate and the foil surface can be quickly adjusted, and the upper anode plate is screwed by the screw 33 after being adjusted to a proper distance according to the process requirement and the product requirement.
As shown in fig. 5, the roller system transmission assembly is composed of two or more guide rollers, the conductive roller 41 of which is fixed by a first bearing seat 43, one end is provided with a driving wheel 44 and a speed reducer 47, the speed reducer is connected with a servo motor 48, the auxiliary roller 42 of which is fixed by a second bearing seat 44, one end is provided with a driven wheel 45, and the belt wheel is connected and transmitted by a belt 46.
As shown in FIG. 6, the squeeze roller assembly has a squeeze roller 51 with a roller surface coated with rubber, the thickness of the coated rubber is 10-20mm, the Shore A is 40-55 degrees, the two ends of the squeeze roller are provided with a third bearing seat 52, the bearing seat is provided with four threaded holes and is connected with a sliding block 53, the sliding block is sleeved on a guide rail 54 to move horizontally, the guide rail is fixed on a mounting plate 55, the mounting plate is also provided with a stroke-adjustable cylinder 56, the rear end piston rod of the cylinder is provided with a nut for adjusting the stroke to adapt to different mounting positions, the front section piston rod of the cylinder is provided with a push block 57, the push block 57 is provided with a rubber 58, the rubber is mounted on the push block in an adhesive or screw connection mode, the rubber hardness is lower than that of the squeeze roller, and the cylinder is provided with a pressure regulating valve. The pushing block is opposite to the side face of the third bearing seat.
The two air knives are symmetrically arranged on two sides of the copper foil, and the air blowing openings of the two air knives are slightly downward. The inner structure of the air knife is shown in fig. 7, the shell 61 is made of aluminum alloy, the outer surface of the air knife is coated with heat insulation material, the air knife comprises a shell and a curved cavity positioned in the shell, a split structure for splitting the curved cavity into two parts is arranged in the curved cavity, the curved cavity 62 is divided into two asymmetric parts, the split structure comprises a baffle 63 with one end connected with the bottom of the curved cavity, the other end of the baffle is externally expanded with a special-shaped structure matched with the outline of the curved cavity, two sides of the middle part of the special-shaped structure are provided with inward contracted arc-shaped buffer parts, a first air duct 64 and a second air duct 65 are formed between the special-shaped structure and the cavity, the first air duct and the second air duct are bent in paths, a first air blowing groove 69 and a second air blowing groove 610 which are communicated with the outside of the shell are formed between the tail end of the special-shaped structure and the cavity, a first buffer area 67 and a second buffer area 68 are formed by the part, close to the first air blowing groove and the second air blowing groove, of the special-shaped structure in a shrinking mode, the first buffer area 67 is connected with the first air blowing groove 69, the area is smaller than a semicircle, the second buffer area 68 is connected with the second air blowing groove 610, the area is larger than the semicircle, the step on the air outlet side is slightly higher, the width of the first air blowing groove is 0.2-0.5mm, and the width of the second air blowing groove is 0.8-1.5mm.
The hot air blown by the air heater respectively enters two chambers of the curved cavity separated by the partition plate and is blown out along the first air duct and the second air duct, so that the parameters of the air heater can be adjusted in real time, the purposes of drying effect and reducing damage to the surface of the copper foil are achieved, and as shown in fig. 8, the improvement of the scheme is that an air speed sensor is arranged in the first buffer area, and a temperature sensor is arranged in the second buffer area. The air speed sensor and the temperature sensor are in signal connection with the air heater, the air speed in the first air channel and the temperature in the second air channel can be monitored in real time through the air speed sensor and the temperature sensor, and the air speed and the temperature can meet the requirements, so that the drying effect is achieved, and the damage to the surface of the copper foil is reduced.
The utility model is characterized in that:
1. the copper foil horizontally passes through the oxidation prevention groove, the soaking span is large, the passivation time is long under the same speed, and the effect is better;
2. the vertical dimension of the anode groove is reduced by more than 400mm, so that the foil penetrating, checking and equipment replacement and overhaul are facilitated;
3. the anode tank body is made of transparent materials, so that the running condition can be observed, the sealing cover is convenient to take and place, and the operation is time-saving and labor-saving;
4. the anti-oxidation waste liquid is discharged, and the waste residue at the bottom of the anti-oxidation tank is convenient and thorough to clean;
5. the anti-oxidation reflux mode can effectively improve the circulation speed of the anti-oxidation liquid and ensure the ion concentration;
6. the angle of the spray pipe is adjustable through the fan-shaped adjusting plate, the spray direction can be adjusted during production, the flow is adjustable, and the oxidation prevention effect can be ensured;
7. the distance between the anode plate and the copper foil is quickly adjustable, so that the anti-oxidation requirement of the copper foil with different thicknesses and different speeds can be met;
8. after the structure is subjected to oxidation prevention treatment, the copper foil is baked for 30min at 150 ℃ and does not have oxidation discoloration;
9. the driving roller system does not need to be completely immersed in the anti-oxidation liquid, so that the shaft head sealing is canceled, and the cost and the maintenance workload are greatly reduced;
10. the roller systems are driven by a belt, and the auxiliary roller is changed into a main roller, so that the influence of the original driven roller on the copper foil is eliminated;
11. the liquid squeezing roller is horizontally arranged, so that the installation difficulty is reduced, and the influence of the dead weight of the roller on the copper foil is eliminated;
12. the constant pressure adjustment of the liquid squeezing roller is more reliable than manual adjustment, so that the labor is saved, and the automatic adjustment is realized;
13. the copper foil and the air knife pass through the air knife almost vertically, so that the influence of gravity is eliminated, the air blowing balance is good, and the shake of the copper foil is reduced;
14. the double-groove air knife has the advantages that the first air blowing groove is used for fast blowing liquid and drying, and the second air blowing groove is used for slow blowing drying, so that the drying effect is good;
15. the integrated blowing and drying reduces the size of the whole structure of the foil producing machine.
Claims (8)
1. The utility model provides an air knife structure, its characterized in that includes casing and curved cavity (62) that are located the casing, be equipped with in the curved cavity and divide into the reposition of redundant personnel structure of two with curved cavity, the reposition of redundant personnel structure includes baffle (63) that one end and curved cavity bottom are connected, the other end of baffle expands outward has dysmorphism structure (66) that match with curved cavity's profile, form first wind channel (64) and second wind channel (65) between dysmorphism structure and the cavity, the middle part both sides of dysmorphism structure are equipped with the arc buffer of inwards shrink, form between dysmorphism structure's end and the cavity with the communicating first groove (69) of blowing of casing external world and second groove (610) of blowing, the partial shrink that dysmorphism structure is close to first groove and second groove of blowing forms first buffer (67) and second buffer (68) respectively, the area of first buffer is less than the area of second buffer, first groove width of blowing is less than second groove width.
2. The air knife structure according to claim 1, wherein the first buffer zone is internally provided with a wind speed sensor (611), and the second buffer zone is internally provided with a temperature sensor (612).
3. The air knife structure of claim 1 wherein the contoured structure assumes a downwardly sloped position.
4. The air knife structure of claim 1 wherein the first air blast slot width is between 0.2 and mm mm and the second air blast slot width is between 0.8 and mm and 1.5mm.
5. Copper foil oxidation preventing device, characterized by: comprising the following steps: an oxidation prevention tank (1), a liquid spraying pipe assembly (2), an anode plate assembly (3), a roller system transmission assembly (4) and a pair of air knife structures according to any one of claims 1-4, wherein the liquid spraying pipe assembly, the anode plate assembly and the roller system transmission assembly are arranged in the oxidation prevention tank, and the pair of air knife structures according to any one of claims 1-4 are arranged above the oxidation prevention tank; the spray pipe assembly comprises a spray pipe (21), one end of the spray pipe is communicated with the outside through a valve (24), a plug (23) is arranged at the other end of the spray pipe in a sealing mode, a fan-shaped adjusting plate (22) is fixedly connected to the spray pipe, an arc-shaped groove is formed in the fan-shaped adjusting plate, and the arc-shaped groove is connected with the groove body through a screw; the anode plate assembly comprises a lower anode plate (31) and an upper anode plate (32), wherein the lower anode plate comprises a horizontal plate, two ends of the horizontal plate are fixedly connected with first vertical plates respectively, vertically distributed waist-shaped grooves are formed in the first vertical plates, the upper anode plate comprises a horizontal plate and second vertical plates located at two ends of the horizontal plate, and the second vertical plates are connected with the waist-shaped grooves in a matched mode through screws.
6. The copper foil oxidation preventing apparatus according to claim 5, wherein: the anti-oxidation groove comprises a groove body (11), a liquid spraying pipe assembly and a roller system transmission assembly are arranged between two side edges of the groove body, an overflow plate (12) positioned behind the roller system transmission assembly is arranged in the groove body, a liquid spraying pipe (16) positioned in front of the overflow plate and a return pipe (17) positioned behind the overflow plate are arranged at the bottom of the groove body, and a front cover plate (13), a middle cover plate (14) and a rear cover plate (15) are arranged above the groove body.
7. The copper foil oxidation preventing apparatus according to claim 5, wherein: the roller system transmission assembly comprises a conductive roller (41) and a secondary roller (42), wherein the conductive roller is arranged on a first bearing seat (43), one end of the conductive roller is provided with a driving wheel, a speed reducer (47) and a servo motor (48), the secondary roller is arranged on a second bearing seat (44), one end of the secondary roller is provided with a driven wheel (45), and the driven wheel is in transmission connection with the driving wheel through a belt (46).
8. The copper foil oxidation preventing apparatus according to claim 5, wherein: still include crowded liquid roller assembly (5), crowded liquid roller assembly is including being located crowded liquid roller (51) at roller system drive assembly rear, crowded liquid roller both ends are installed on third bearing frame (52), the rigid coupling in third bearing frame outside has slider (53), slider sliding connection has guide rail (54), the rigid coupling in the guide rail outside has mounting panel (55), be equipped with cylinder (56) on the mounting panel, be equipped with ejector pad (57) on the piston rod of cylinder, the ejector pad is just right with the side of third bearing frame.
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| CN202211101223.8A CN115574579B (en) | 2022-09-09 | 2022-09-09 | Air knife structure and copper foil oxidation preventing device |
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| CN202211101223.8A CN115574579B (en) | 2022-09-09 | 2022-09-09 | Air knife structure and copper foil oxidation preventing device |
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