CN118127576A - Cathode roller and metal foil manufacturing equipment - Google Patents
Cathode roller and metal foil manufacturing equipment Download PDFInfo
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- CN118127576A CN118127576A CN202410540268.8A CN202410540268A CN118127576A CN 118127576 A CN118127576 A CN 118127576A CN 202410540268 A CN202410540268 A CN 202410540268A CN 118127576 A CN118127576 A CN 118127576A
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- shaft core
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000011888 foil Substances 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 title claims abstract description 17
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000010936 titanium Substances 0.000 claims abstract description 84
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 84
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000004020 conductor Substances 0.000 claims abstract description 60
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 239000010949 copper Substances 0.000 claims abstract description 46
- 239000003792 electrolyte Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 12
- 235000017491 Bambusa tulda Nutrition 0.000 description 12
- 241001330002 Bambuseae Species 0.000 description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 12
- 239000011425 bamboo Substances 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 241000227287 Elliottia pyroliflora Species 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The application relates to the technical field of copper foil manufacturing equipment, in particular to cathode roller and metal foil manufacturing equipment, which comprises a cathode shaft core, wherein a conductive copper sleeve is connected to the cathode shaft core; the inner periphery of the titanium cylinder is connected with a supporting cylinder; the two titanium side plates are respectively arranged close to two ends of the titanium cylinder, the titanium side plates are connected with the titanium cylinder, and the titanium side plates are connected with the conductive copper sleeve; the fixed amplitude plate is connected with the conductive copper sleeve and the supporting cylinder; a plurality of movable webs, wherein the movable webs are in sliding connection with the conductive copper sleeve and the supporting cylinder, and an accommodating space is formed between the fixed webs and the movable webs or between the two movable webs; a plurality of deformed conductors which are abutted with the supporting cylinder and the movable web; an adjusting unit that changes a distance between the fixed web and the moving web or between the two moving webs by changing a shape of the deformed conductor; the application has the effect of adjusting the current flowing on the surface of the titanium cylinder so as to improve the uniformity of the current on the surface of the titanium cylinder.
Description
Technical Field
The application relates to the technical field of copper foil manufacturing equipment, in particular to a cathode roller and metal foil manufacturing equipment.
Background
Along with the increase of the lithium ion battery demand, the copper foil demand of the lithium ion battery negative electrode current collector is also driven, at present, the copper foil can be divided into a rolled copper foil and an electrolytic copper foil according to the processing mode, a cathode roller is used as one of key equipment for producing the electrolytic copper foil, and is also called as a heart for producing the lithium ion battery copper foil, and the quality of the cathode roller directly determines the grade and the quality of the electrolytic copper foil.
In the prior art, patent application document CN2300657Y discloses a seamless titanium tube composite cathode roller, which comprises: the roller is axially positioned in an inner cavity of the roller, the roller is fixedly connected with the main shaft through the conductive plate, the two ends of the roller are connected with the blocking plates in a sealing way, the roller is formed by conforming an outer layer and an inner layer, wherein the outer layer is a seamless titanium cylinder, the inner layer is a steel cylinder formed by coiling and welding a steel plate or a copper-steel composite cylinder of steel ladle copper formed by coiling and welding a copper cylinder explosion composite plate, and the roller is formed by interference fit of hot filling and the outer layer seamless titanium cylinder; the conductive plate is arranged as a round steel plate, an elliptical hole is formed in the radial direction, the conductive plate is sleeved on the main shaft, a flange is fixedly welded on the outer wall of the main shaft, the inner wall of the inner layer of the roller is an annular step layer, the outer diameter of the conductive plate is welded on the annular step layer of the inner wall of the inner layer of the roller layer by layer, and the inner diameter of the conductive plate is fixed on the flange through bolts.
Aiming at the related technology, when the cathode roller is processed to finish trial-manufacture metal foil, due to the limitation of the processing level of the prior part or the size disturbance caused in the installation process, the current passing through the outer seamless titanium tube is easily uneven, the uneven current can cause uneven thickness of the copper foil formed on the outer periphery side of the seamless titanium tube in the electrolysis process, the quality of the copper foil is affected, and the current flowing path of the cathode roller disclosed in the prior art is unchanged after the processing is finished, and cannot be adjusted according to the trial-manufacture condition.
Disclosure of Invention
In order to adjust the current flowing on the surface of the titanium cylinder to improve the uniformity of the current on the surface of the titanium cylinder, the application provides a cathode roller and metal foil manufacturing equipment.
The application provides a cathode roller and metal foil manufacturing equipment, which adopts the following technical scheme:
in a first aspect, the present application provides a cathode roll.
A cathode roll comprising:
the cathode shaft core is sleeved with a conductive copper sleeve;
The titanium cylinder is coaxially arranged with the cathode shaft core, the inner periphery of the titanium cylinder is connected with a supporting cylinder, and the supporting cylinder is coaxially arranged with the cathode shaft core;
The two titanium side plates are respectively arranged near two ends of the titanium cylinder along the axial direction of the cathode shaft core, the titanium side plates are connected with the titanium cylinder, and the titanium side plates are connected with the conductive copper sleeve;
the fixed web is positioned in the inner cavity of the supporting cylinder and is connected with the conductive copper sleeve and the supporting cylinder;
The movable webs are in sliding connection with the conductive copper sleeves, are in sliding connection with the supporting cylinders, slide along the axial direction of the cathode shaft core, and form accommodating spaces between the fixed webs and the movable webs or between the movable webs;
A plurality of deformed conductors positioned in the accommodation space and simultaneously abutting against the support cylinder and the moving web;
The adjusting units are positioned in the inner cavity of the supporting cylinder, are connected with the deformation conductors and the movable web, and change the distance between the fixed web and the movable web or between the two movable webs by changing the form of the deformation conductors.
According to the technical scheme, current is input to the anode plate through external power supply equipment, the current flows into the titanium cylinder after passing through electrolyte, then the current is input into the conductive copper sleeve through the supporting cylinder and the titanium side plate, finally a complete loop is formed through conductive rings at two ends of the cathode shaft core, in the electrolytic copper foil manufacturing process, the current flowing condition of the titanium cylinder along the radial direction can be known through detecting the thickness of the copper foil, at the moment, the deformation conductor is forced to deform through the adjusting unit, the deformation conductor is forced to the fixed web and the movable web, the contact surface of the deformation conductor and the supporting cylinder is expanded, and the current intensity of a local area of the titanium cylinder is controlled; the cathode roller of design is convenient for form rotatable installation basis through cathode axle core and electrically conductive copper sheathing, can cooperate titanium curb plate realization and electrically conductive copper sheathing through the titanium section of thick bamboo, and realize the manufacturing of copper foil, can realize the support to the titanium section of thick bamboo through the support section of thick bamboo, can form a plurality of width-variable accommodation spaces through fixed web and polylith movable web, and, can provide a location datum point for the removal of movable web through fixed web, make the direction of movement of movable web be definite, through deformation conductor and adjusting unit cooperation, can cooperate the movable web to realize deformation conductor and support the change of barrel contact conduction area, and then change the regional electric current size of titanium section of thick bamboo, can adjust the electric current that flows on the titanium section of thick bamboo surface in order to improve titanium section of thick bamboo surface current's homogeneity, finally improve copper foil's thickness homogeneity.
In a specific embodiment, the adjusting unit comprises
The annular air bag is sleeved on the cathode shaft core and is positioned in the accommodating space, and the annular air bag is abutted with the deformation conductor;
An adjustment assembly connected to both the fixed web and the moving web or to both of the moving webs for reducing the distance between the fixed web and the moving web or between the moving webs;
The air pump is connected with the cathode shaft core, and the air pump is communicated with the annular air bag through an air pipe.
Through adopting above-mentioned technical scheme, the adjusting unit of design is convenient for be supplied with air in to annular gasbag through the air pump, changes annular gasbag and to the external force size that warp the electric conductor and apply, and then cooperates adjusting assembly to realize the change of the distance between fixed web and the movable web or between two movable webs, accomplishes the change of titanium section of thick bamboo local current size.
In a specific embodiment, the adjustment assembly comprises a plurality of springs, one end of which is connected to the moving web and the other end is connected to the fixed web or to the other moving web, and the plurality of springs are uniformly distributed around the circumference of the cathode shaft core.
According to the technical scheme, according to the multi-point measurement of the metal foil obtained by production, when the current passing through the titanium cylinder locally needs to be increased or reduced, and the current of a corresponding area needs to be increased, the air pump inputs air into the annular air bag through the air pipe, the input air is optimal by inert gas, the air in the inner cavity of the annular air bag is increased, so that the volume of the annular air bag is expanded, the annular air bag is expanded and simultaneously applies force to the movable web, the movable web moves along the axial direction of the cathode shaft core towards the side far away from the fixed web, meanwhile, the annular air bag applies force to the deformed conductor, the deformed conductor deforms along with the movable web, the contact area of the deformed conductor with the supporting cylinder is increased, and then the current is increased, and when the current of the corresponding area needs to be reduced, the air in the annular air bag is pumped out through the air pump, at the moment, the restoring force of the spring overcomes the thrust of the annular air bag, the axial direction of the movable web along the cathode shaft core is close to one side of the fixed web, the annular air bag is compressed by the volume until the thrust exerted by the annular air bag is balanced with the tension exerted by the spring, and the deformed conductor deforms along with the deformation conductor, and the contact area of the deformed conductor with the supporting cylinder is reduced, and the current is reduced; the adjusting component is designed to enable the movable web to approach towards the fixed web or another movable web along the axial direction of the cathode shaft core through the spring.
In a specific embodiment, the cathode shaft core is provided with at least one guide groove, the guide groove penetrates through the conductive copper sleeve, and the extending section of the movable web extends into the guide groove.
Through adopting above-mentioned technical scheme, the guide way of design can prevent to remove the relative rotation of web and conductive copper sheathing emergence circumferencial direction when realizing removing the axial slip of web along the cathode axle core.
In a specific embodiment, the fixed web and the movable web are provided with a plurality of ventilation holes, and the ventilation holes and the deformed conductor are staggered along the radial direction of the cathode shaft core.
Through adopting above-mentioned technical scheme, the bleeder vent of design can reduce the resistance when moving the axial slip of web along the negative pole axle core.
In a specific embodiment, a flexible conductive wire is fixedly connected between the moving web and the conductive copper sleeve.
By adopting the technical scheme, after the sliding connection part of the movable web and the conductive copper sleeve or the supporting cylinder is worn after long-term use, the current conduction stability between the movable web and the conductive copper sleeve or the supporting cylinder is maintained.
In a specific embodiment, the cathode shaft is hollow, and the cathode shaft cavity is in communication with the outside.
By adopting the technical scheme, the gas exchange between the gas in the accommodating space and the outside can be conveniently realized.
In a second aspect, the present application provides a metal foil manufacturing apparatus comprising:
A cathode roller;
The electrolytic cell is connected to the mounting frame, an anode plate is arranged in the inner cavity of the electrolytic cell, and a cathode roller is rotationally connected to the electrolytic cell;
the two conductive rings are respectively positioned at two ends of the titanium cylinder and are movably connected with the conductive copper sleeve;
The liquid exchange unit is connected with the mounting frame, and is communicated with the inner cavity of the electrolytic tank and used for replacing electrolyte in the electrolytic tank.
According to the technical scheme, electrolyte is input into the inner cavity of the electrolytic tank through the electrolyte exchange unit, at the moment, an external power supply supplies power to the anode plate, current flows into the titanium cylinder after passing through the electrolyte, then the current is input into the conductive copper sleeve through the support cylinder and the titanium side plate, finally a complete loop is formed through the conductive rings at the two ends of the cathode shaft core, in the electrolytic copper foil manufacturing process, the current flowing condition of the titanium cylinder along the radial direction can be known through detecting the thickness of the copper foil, at the moment, the deformation conductor is forced to deform through the adjusting unit, the deformation conductor is forced to the fixed web and the movable web, the contact surface of the deformation conductor and the support cylinder is expanded, and the current intensity of a local area of the titanium cylinder is controlled; the designed metal foil manufacturing equipment is convenient to form a rotatable installation foundation through the cathode shaft core and the conductive copper sleeve, current conduction with the conductive copper sleeve can be realized through the titanium cylinder in cooperation with the titanium side plate, copper foil manufacturing is realized, support of the titanium cylinder can be realized through the support cylinder, a plurality of accommodating spaces with variable widths can be formed through the fixed webs and the plurality of movable webs, the contact conduction area between the deformed conductors and the support cylinder can be changed through cooperation of the deformed conductors and the adjusting unit, the current of a local area of the titanium cylinder is changed, and the current flowing on the surface of the titanium cylinder can be adjusted to improve the uniformity of the current on the surface of the titanium cylinder, and finally the thickness uniformity of the copper foil is improved; the installation of the electrolytic tank is convenient for through the mounting frame, the electrolyte is convenient to contain through the electrolytic tank, the electrolysis is realized through the anode plate and the cathode roller, the conduction of current can be realized when the cathode shaft core rotates through the conducting ring, the electrolyte in the electrolytic tank is convenient to replace through the electrolyte replacing unit, and the electrolyte in the electrolytic tank is always kept in an ideal state.
In summary, the present application includes at least one of the following beneficial technical effects:
The cathode roller of design is convenient for form rotatable installation basis through cathode axle core and electrically conductive copper sheathing, can cooperate the titanium curb plate to realize the electric current that leads with electrically conductive copper sheathing through the titanium section of thick bamboo, and realize the manufacturing of copper foil, can realize the support to the titanium section of thick bamboo through supporting the section of thick bamboo, can form a plurality of width-variable accommodation spaces through fixed web and polylith movable web, through deformation conductor and adjusting unit cooperation, can cooperate movable web to realize deformation conductor and support the change of the barrel contact conduction area, and then change the regional electric current size of titanium section of thick bamboo, can adjust the electric current that flows through in order to improve titanium section of thick bamboo surface current's homogeneity, finally improve the thickness homogeneity of copper foil.
The cathode roller is convenient for supply air in the annular air bag through the air pump, changes the external force applied by the annular air bag to the deformed conductor, and further cooperates with the adjusting component to realize the change of the distance between the fixed web and the movable web or between the two movable webs, thereby completing the change of the local current of the titanium cylinder.
The designed cathode roller can realize the axial sliding of the movable web along the cathode shaft core and simultaneously prevent the movable web and the conductive copper sleeve from relative rotation in the circumferential direction through the guide groove.
Drawings
Fig. 1 is a schematic view showing the structure of a cathode roll according to an embodiment of the present application.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is another angular cross-sectional view of fig. 1, intended to illustrate a flexible conductive wire.
Fig. 5 is a schematic view showing the overall structure of a metal foil manufacturing apparatus in the embodiment of the present application.
Fig. 6 is a sectional view taken along line B-B of fig. 5.
Reference numerals illustrate: 1. a cathode core; 11. a conductive copper sleeve; 12. a guide groove; 2. a titanium cylinder; 3. a support cylinder; 4. a titanium side plate; 5. a fixed web; 51. ventilation holes; 6. moving the web; 61. a flexible conductive wire; 7. deforming the electrical conductor; 8. an adjusting unit; 81. an annular air bag; 82. an adjustment assembly; 821. a spring; 83. an air pump; 9. a mounting frame; 91. an electrolytic cell; 92. an anode plate; 93. a conductive ring; 94. and a liquid exchange unit.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a cathode roller and metal foil manufacturing equipment.
In a first aspect, embodiments of the present application disclose a cathode roll.
Referring to fig. 1 and 2, a cathode roller includes a cathode shaft core 1, a conductive copper sleeve 11, a titanium cylinder 2, a supporting cylinder 3 and a titanium side plate 4, wherein the conductive copper sleeve 11 is coaxially sleeved on the cathode shaft core 1, two ends of the titanium cylinder 2 are opened, and the titanium cylinder 2 is coaxially arranged with the cathode shaft core 1; the number of the titanium side plates 4 is two, the two titanium side plates 4 are respectively close to two ends of the titanium cylinder 2 along the axial direction of the cathode shaft core 1, the titanium side plates 4 are welded and fixed with the titanium cylinder 2, the titanium side plates 4 are welded and fixed with the supporting cylinder 3at the same time, and the titanium side plates 4 are welded and fixed with the conductive copper sleeve 11.
Referring to fig. 1 and 2, in order to further reduce the deformation probability of the supporting cylinder 3 and to achieve the adjustment of the surface current of the titanium cylinder 2, the cathode roll further comprises a fixed web 5 and a plurality of movable webs 6, the fixed web 5 is positioned in the inner cavity of the supporting cylinder 3 and the fixed web 5 is welded and fixed with the conductive copper bush 11, the fixed web 5 is welded and fixed with the supporting cylinder 3, in the present application, the fixed web 5 is disposed near the middle area in the length direction of the cathode core 1 and the fixed web 5 is made of conductive material such as copper; a plurality of movable webs 6 are distributed along the axial direction of the cathode shaft core 1, the movable webs 6 are simultaneously connected with the conductive copper sleeve 11 and the supporting cylinder 3 in a sliding manner along the axial direction of the cathode shaft core 1, and an accommodating space is formed between the fixed webs 5 and the movable webs 6 or between the two movable webs 6; in this embodiment, the number of moving webs 6 is two, and the two moving webs 6 are located on opposite sides of the fixed web 5, respectively.
Referring to fig. 2 and 3, in order to facilitate the position adjustment of the moving web 6 and further to finely control the magnitude of the current flowing through the titanium tube 2, the cathode roller further includes a deformed conductor 7 and an adjusting unit 8, the number of the deformed conductors 7 is consistent with the number of the accommodating spaces, the deformed conductor 7 is located in the accommodating spaces, and the deformed conductor 7 is simultaneously abutted against the supporting tube 3, the fixed web 5 and the moving web 6 to realize the conduction of the current, in the present application, the deformed conductor 7 may be composed of a plurality of conductive particles made of conductive materials, such as graphite particles, or may be composed of deformable conductive gel, or may be a mixture of graphite particles and conductive gel, or may be any other conductive material capable of being deformed by applying an external force during the use.
Referring to fig. 2 and 3, the number of the adjusting units 8 is identical to the number of the deformed conductors 7, the adjusting units 8 are located in the inner cavity of the supporting cylinder 3, and the adjusting units 8 are connected with the deformed conductors 7 and the moving web 6, and the distance between the fixed web 5 and the moving web 6 or between the two moving webs 6 is changed by adjusting the shape of the deformed conductors 7; in the application, the adjusting unit 8 may be a linear module, and the movable module of the linear module penetrates through the cathode shaft core 1 and the conductive copper sleeve 11 to be connected with the movable web 6, so that the movable web 6 moves along the axial direction of the cathode shaft core 1, or may be an electric telescopic rod, and a piston rod of the electric telescopic rod is connected with the movable web 6 through a connecting piece, so that the movable web 6 moves along the axial direction of the cathode shaft core 1, or may be any other structure capable of changing the distance between the fixed web 5 and the movable web 6 or between the two movable webs 6.
Referring to fig. 3, in this embodiment, the adjusting unit 8 includes an annular air bag 81, an adjusting component 82 and an air pump 83, the annular air bag 81 is sleeved on the cathode shaft core 1, and the annular air bag 81 is located in the accommodating space, the annular air bag 81 is abutted with the deformed conductor 7, the adjusting component 82 is connected with the fixed web 5 and the moving web 6 at the same time, for reducing the distance between the fixed web 5 and the moving web 6, the air pump 83 is connected with the cathode shaft core 1, and the air pump 83 is communicated with the annular air bag 81 through an air pipe, for controlling the volume of air in the annular air bag 81.
Referring to fig. 3, the adjusting assembly 82 includes a plurality of springs 821, wherein the plurality of springs 821 are uniformly distributed around the circumference of the cathode shaft core 1, one end of each spring 821 is welded and fixed with the movable web 6, and the other end is welded and fixed with the fixed web 5, in order to facilitate controlling the sliding direction of the movable web 6, at least one guide groove 12 is formed on the cathode shaft core 1, the guide groove 12 is formed along the axial direction of the cathode shaft core 1, the guide groove 12 is arranged to penetrate through the conductive copper sleeve 11, and the extending section of the movable web 6 is arranged to extend into the guide groove 12 to avoid the relative rotation between the movable web 6 and the conductive copper sleeve 11; according to the multipoint measurement of the produced metal foil, when the current passing through the titanium cylinder 2 locally needs to be increased or decreased, and the current of a corresponding area needs to be increased, the air pump 83 inputs air into the annular air bag 81 through the air pipe, the input air is optimal by inert gas, the air in the inner cavity of the annular air bag 81 is increased, so that the volume of the annular air bag 81 is expanded, the annular air bag 81 is simultaneously applied with force to the moving web 6, the moving web 6 moves towards one side far away from the fixed web 5 along the axial direction of the cathode shaft core 1, meanwhile, the annular air bag 81 is applied with force to the deformed conductor 7, the deformed conductor 7 is deformed along with the deformation, the contact area between the deformed conductor 7 and the supporting cylinder 3 is increased after the deformation, further the current is increased, and when the current of the corresponding area needs to be reduced, the air in the annular air bag 81 is pumped out through the air pump 83, at the moment, the restoring force of the spring 821 overcomes the thrust of the annular air bag 81, the moving web 6 slides towards one side close to the fixed web 5 along the axial direction of the cathode shaft core 1, the annular air bag 81 is again increased due to the volume compression, the thrust force applied by the air is kept to the annular air bag 81 and the tensile force exerted by the annular air bag 81 is kept in balance with the tensile force applied by the spring 81, and the tensile force applied by the spring 7 is kept small, and the tensile force applied by the annular air bag 81 is balanced with the tensile force is kept in contact with the tensile force of the conductive conductor 7, and the tensile force is reduced along with the tensile force, and the tensile force is deformed, and the tensile strength is deformed along with the tensile strength is reduced, and is deformed, and when the tensile strength is deformed along the tensile stress is due.
Referring to fig. 3, in order to reduce the resistance when the moving web 6 slides along the axial direction of the cathode axis 1, a plurality of ventilation holes 51 are formed in both the fixed web 5 and the moving web 6, and the ventilation holes 51 are staggered with the deformed conductor 7 along the radial direction of the cathode axis 1, so that the deformed conductor 7 is prevented from passing through the moving web 6 or the fixed web 5 through the ventilation holes 51.
Referring to fig. 3 and 4, in order to maintain the stability of current conduction between the moving web 6 and the conductive copper bush 11 after abrasion occurs at the sliding connection of the moving web 6 and the conductive copper bush 11 or the supporting cylinder 3 for a long period of time, a flexible conductive wire 61 is welded and fixed between the moving web 6 and the conductive copper bush 11; in order to facilitate the gas exchange between the gas in the accommodating space and the outside, the cathode shaft core 1 is hollow, and the inner cavity of the cathode shaft core 1 is communicated with the outside, and the air pump 83 is arranged in the inner cavity of the cathode shaft core 1.
The implementation principle of the cathode roller in the embodiment of the application is as follows: the current is input to the anode plate 92 through external power supply equipment, the current flows into the titanium cylinder 2 after passing through the electrolyte, then the current is input into the conductive copper sleeve 11 through the support cylinder 3 and the titanium side plates 4, finally a complete loop is formed through the conductive rings 93 at the two ends of the cathode shaft core 1, in the electrolytic copper foil manufacturing process, the current flowing condition of the titanium cylinder 2 along the radial direction can be known through detecting the thickness of the copper foil, at the moment, the deformation conductor 7 is forced to deform through the adjusting unit 8, the deformation conductor 7 is forced to the fixed web 5 and the movable web 6, the contact surface of the deformation conductor 7 and the support cylinder 3 is expanded, and the current intensity of the local area of the titanium cylinder 2 is controlled.
In a second aspect, embodiments of the present application disclose a metal foil manufacturing apparatus.
Referring to fig. 5 and 6, a metal foil manufacturing apparatus includes a mounting frame 9, an electrolytic tank 91, an anode plate 92, a conductive ring 93, a liquid exchange unit 94, and a cathode roller according to the first aspect of the present application, where the electrolytic tank 91 is bolted to the mounting frame 9, the anode plate 92 is disposed at the bottom of the cavity of the electrolytic tank 91, the anode plate 92 is bolted to the electrolytic tank 91, a bare portion of a cathode shaft core 1 of the cathode roller, which is not covered by a conductive copper sleeve 11, is rotatably connected to the electrolytic tank 91 through a bearing, and the cathode shaft core 1 and the anode plate 92 are coaxially disposed.
Referring to fig. 5 and 6, the number of the conductive rings 93 is two, the two conductive rings 93 are respectively located at two opposite ends of the titanium cylinder 2 along the axial direction of the cathode shaft core 1, the conductive rings 93 are movably connected with the conductive copper sleeve 11, current conduction is realized under the condition that the conductive copper sleeve 11 rotates, the liquid exchange unit 94 is connected with the mounting frame 9, and the liquid exchange unit 94 is communicated with the inner cavity of the electrolytic tank 91 and is used for exchanging electrolyte in the electrolytic tank 91; in the present application, the liquid exchange unit 94 may include a liquid storage tank, a liquid exchange pump, and two liquid pipes, or may have another structure capable of exchanging the electrolyte in the electrolytic tank 91.
The implementation principle of the metal foil manufacturing equipment provided by the embodiment of the application is as follows: the electrolyte is input into the inner cavity of the electrolytic tank 91 by the electrolyte exchange unit 94, at the moment, an external power supply supplies power to the anode plate 92, current flows into the titanium cylinder 2 after passing through the electrolyte, then the current is input into the conductive copper sleeve 11 through the support cylinder 3 and the titanium side plate 4, finally a complete loop is formed through the conductive rings 93 at the two ends of the cathode shaft core 1, in the electrolytic copper foil manufacturing process, the current flowing condition of the titanium cylinder 2 along the radial direction can be known by detecting the thickness of the copper foil, at the moment, the deformed conductor 7 is forced to deform by the adjusting unit 8, the deformed conductor 7 deforms, the deformed conductor 7 is forced to the fixed web 5 and the movable web 6, the contact surface of the deformed conductor 7 and the support cylinder 3 is expanded, and the current intensity of the local area of the titanium cylinder 2 is controlled.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. A cathode roll, characterized by: comprising the following steps:
a cathode shaft core (1), wherein a conductive copper sleeve (11) is sleeved on the cathode shaft core (1);
the titanium cylinder (2) is coaxially arranged with the cathode shaft core (1), the inner periphery of the titanium cylinder (2) is connected with a supporting cylinder (3), and the supporting cylinder (3) is coaxially arranged with the cathode shaft core (1);
The two titanium side plates (4) are respectively arranged close to two ends of the titanium cylinder (2) along the axial direction of the cathode shaft core (1), the titanium side plates (4) are connected with the titanium cylinder (2), and the titanium side plates (4) are connected with the conductive copper sleeve (11);
A fixed web (5), wherein the fixed web (5) is positioned in the inner cavity of the supporting cylinder (3), and the fixed web (5) is connected with the conductive copper sleeve (11) and the supporting cylinder (3);
A plurality of movable webs (6), wherein the movable webs (6) are in sliding connection with the conductive copper sleeves (11), the movable webs (6) are in sliding connection with the supporting cylinders (3), the movable webs (6) slide along the axial direction of the cathode shaft core (1), and a containing space is formed between the fixed webs (5) and the movable webs (6) or between the movable webs (6);
a plurality of deformed conductors (7), wherein the deformed conductors (7) are positioned in the accommodating space, and the deformed conductors (7) are simultaneously abutted with the supporting cylinder (3) and the movable web (6);
A plurality of adjusting units (8), the adjusting units (8) are positioned in the inner cavity of the supporting cylinder (3), and the adjusting units (8) are connected with the deformation conductor (7) and the moving web (6), and the distance between the fixed web (5) and the moving web (6) or between the two moving webs (6) is changed by changing the shape of the deformation conductor (7).
2. The cathode roll according to claim 1, wherein: the adjusting unit (8) comprises
The annular air bag (81) is sleeved on the cathode shaft core (1), the annular air bag (81) is positioned in the accommodating space, and the annular air bag (81) is abutted with the deformation conductor (7);
-an adjustment assembly (82), said adjustment assembly (82) being connected to said fixed web (5) and to said moving web (6) or to both of said moving webs (6) for reducing the distance between said fixed web (5) and moving web (6) or between both of said moving webs (6);
the air pump (83), the air pump (83) with negative pole axle core (1) is connected, just air pump (83) with annular gasbag (81) are through the gas-supply pipe intercommunication.
3. The cathode roll according to claim 2, wherein: the adjusting assembly (82) comprises a plurality of springs (821), one end of each spring (821) is connected with the movable web (6), the other end of each spring is connected with the fixed web (5) or the other movable web (6), and the plurality of springs (821) are uniformly distributed around the circumference of the cathode shaft core (1).
4. A cathode roll according to claim 3, characterized in that: at least one guide groove (12) is formed in the cathode shaft core (1), the guide groove (12) penetrates through the conductive copper sleeve (11), and the extending section of the movable web (6) extends into the guide groove (12).
5. The cathode roll according to claim 2, wherein: a plurality of ventilation holes (51) are formed in the fixed web (5) and the movable web (6), and the ventilation holes (51) and the deformation conductors (7) are arranged in a staggered mode along the radial direction of the cathode shaft core (1).
6. The cathode roll according to claim 1, wherein: a flexible conductive wire (61) is fixedly connected between the movable web (6) and the conductive copper sleeve (11).
7. The cathode roll according to claim 4, wherein: the cathode shaft core (1) is arranged in a hollow mode, and the inner cavity of the cathode shaft core (1) is communicated with the outside.
8. A metal foil manufacturing apparatus characterized in that: comprising the following steps:
a cathode roll according to any one of claims 1-7;
the device comprises a mounting frame (9), wherein an electrolytic tank (91) is connected to the mounting frame (9), an anode plate (92) is arranged in an inner cavity of the electrolytic tank (91), and a cathode roller is rotatably connected to the electrolytic tank (91);
the two conductive rings (93) are respectively positioned at two ends of the titanium cylinder (2), and the conductive rings (93) are movably connected with the conductive copper sleeve (11);
the liquid exchange unit (94), the liquid exchange unit (94) with the mounting bracket (9) is connected, just liquid exchange unit (94) with electrolysis trough (91) inner chamber intercommunication is used for changing electrolyte in electrolysis trough (91).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410540268.8A CN118127576B (en) | 2024-04-30 | 2024-04-30 | Cathode roller and metal foil manufacturing equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410540268.8A CN118127576B (en) | 2024-04-30 | 2024-04-30 | Cathode roller and metal foil manufacturing equipment |
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| CN118127576B CN118127576B (en) | 2024-07-12 |
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| CN118127576B (en) | 2024-07-12 |
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