CN104662709A - Method for manufacturing electrode plate group for lead-acid battery - Google Patents
Method for manufacturing electrode plate group for lead-acid battery Download PDFInfo
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- CN104662709A CN104662709A CN201480002463.XA CN201480002463A CN104662709A CN 104662709 A CN104662709 A CN 104662709A CN 201480002463 A CN201480002463 A CN 201480002463A CN 104662709 A CN104662709 A CN 104662709A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/02—Top casting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
- H01M50/541—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges for lead-acid accumulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/04—Casting metal electric battery plates or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/14—Electrodes for lead-acid accumulators
- H01M4/16—Processes of manufacture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Provided is a method for manufacturing an electrode plate group for a lead-acid battery capable of shortening the time required for melting pig lead to produce molten metal when forming a strap. The method for manufacturing an electrode plate group for a lead-acid battery is constituted by first to third processes. In the first process, unheated pig lead made of lead or a lead alloy is preliminarily heated up at a heating station (6) to a temperature at which the lead does not melt. In the second process, the preliminarily heated pig lead (7) is heated at a melting section (8) to a temperature at which the lead is melted to make a molten metal (9). The molten metal (9) is injected into a mold (10), and the cathode ear parts (4) or anode ear parts (5) of electrode plates of the same polarity are immersed in the molten metal (9) in the mold (10) to form a strap. The first process is then executed during the execution of the second process.
Description
Technical field
The present invention relates to the method manufacturing lead acid accumulator electrode group.Especially, the present invention relates to a kind of method manufacturing lead acid accumulator electrode group, wherein being formed the bus-bar (strap) of the ear for connecting same polarity electrode by cast-on strap (cast-onstrap) mode.
Background technology
Fig. 5 illustrates conventional that perform, formed bus-bar by cast-on strap mode in lead acid accumulator electrode group schematic process.Fig. 6 is the schematic perspective view of the lead acid accumulator electrode group formed before bus-bar.
In order to form bus-bar in the lead acid accumulator ear of same polarity electrode in electrode group, first, as shwon in Figures 5 and 6, by positive electrode 1 and negative electrode 3 alternately stacking via dividing plate 2, to make electrode group.Then, solder flux is coated the positive electrode ear 4 of positive electrode 1 and the negative electrode ear 5 of negative electrode 3, and carry out drying (ST101 to ST103).
In addition, the lead of lead or lead alloy is made to melt, to prepare motlten metal.By in the die cavity portion of the bus-bar mold of poured with molten metal after heating, and above-mentioned electrode group is reversed and the ear of same polarity is immersed in the motlten metal in die cavity portion.After motlten metal cooling and solidification, carry out the demoulding to form the bus-bar (ST104 to ST108) for connecting same polarity ear.
This method is commonly referred to as " cast-on strap method ", and is typically used as the production method of the battery being suitable for the large-scale production such as sealed type lead acid battery and Automobile Lead Acid Batteries.
Such as, patent documentation 1 discloses a kind of method, wherein the lead of the scheduled volume needed for formation bus-bar is provided to melting plant (casting ladle), to melt lead and the lead of melting to be injected the die cavity portion of bus-bar mold at every turn.Simultaneously, patent documentation 2 discloses a kind of method, wherein adopt the cavitation effect by producing with the motlten metal of ultrasonic irradiation impregnated electrode ear that oxide skin(coating) etc. is destroyed or dispersion, the defects such as the space formed with the weld interface reduced between bus-bar and electrode ear.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 4-137461 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2002-63891 publication
Summary of the invention
Technical problem
But, as in patent documentation 1, adopt melting plant (casting ladle) to melt in the method for lead during each formation bus-bar, the time of fusing needed for lead becomes bottleneck owing to producing the stand-by period of subsequent handling, thus makes production efficiency reduce.In addition, by be attached to melting plant (casting ladle) residual motlten metal (lead) oxidation and the oxidizing slag produced may be mixed into weld interface, thus cause weld failure.
Simultaneously, as in patent documentation 2, in the method destroyed by making oxide layer with ultrasonic irradiation motlten metal or disperse, oxide skin(coating) may not be destroyed and the fine debris residuing in weld interface or destroyed oxide skin(coating) may be condensed and be mixed into weld interface, thus can cause weld failure.
In order to solve foregoing problems, the object of this invention is to provide a kind of method manufacturing lead acid accumulator electrode group, wherein can shorten in the process formed at bus-bar, fusing lead is to prepare the time needed for motlten metal.
Another object of the present invention is to provide a kind of method manufacturing lead acid accumulator electrode group, wherein can remove equably and remain in motlten metal in melting plant and oxidizing slag thereof.
The scheme of dealing with problems
The present invention improves a kind of method manufacturing lead acid accumulator electrode group, forms the bus-bar of the ear for connecting multiple same polarity electrode in the method.Manufacturing method according to the invention mainly comprises first step, second step and third step.
First, in a first step, the lead that plumbous or lead alloy are made is transported to heating station, and at this heating station, lead is tentatively heated to plumbous unfused temperature.In the second step, the lead after heating preliminary in first step is transported to melting plant, and by this melting plant, lead is heated to make lead be fused into the temperature of motlten metal.In third step, the motlten metal prepared is injected mold, the ear of same polarity electrode is immersed in the motlten metal in this mold in second step, and motlten metal is cooled to form bus-bar.
In manufacturing method according to the invention, during execution second step, perform first step.Statement " performs first step performing during second step " and means part or all that perform first step during performing second step.In the case, first step and second step can start simultaneously, and first step and second step can terminate simultaneously.
Therefore, two benches heating is adopted.In the first stage, the lead of normal temperature is tentatively heated to unfused temperature.In second stage, the lead after tentatively heating is fused into motlten metal.By performing the first stage during execution second stage, the heating time of to prepare in melting plant needed for motlten metal can be shortened.Therefore, it is possible to significantly shorten the time formed needed for bus-bar.
In addition, by as in the present invention, heat the lead that will be melted in the second step in a first step in advance, compared with the lead under ambient temperature being introduced the method for melting plant, the temperature difference between the temperature that can reduce melting plant and the temperature of the lead being introduced into melting plant.Thus, can avoid when lead is introduced into melting plant, occur the sharply decline of temperature in the part of the melting plant contacted with lead.Therefore, it is possible to suppress the thermal shock putting on melting plant, alleviate the local contraction of melting plant, thus prevent the damage of melting plant.
In manufacturing method according to the invention, first conveying arrangement is set, in order to the heating station that will be transported to without preliminarily heated lead in first step in first step, and the second conveying arrangement is set, in order to the lead after heating preliminary in first step to be transported to the melting plant in second step.The operations linkage lead after tentatively heating being transported to melting plant performed with the second conveying arrangement, the first conveying arrangement starts the operation by being transported to heating station without preliminarily heated lead.Statement " the transport operations linkage performed with the second conveying arrangement; the first conveying arrangement starts transport operation " means the first conveying arrangement when the second conveying arrangement terminates transport operation and starts the situation of transport operation, while the second conveying arrangement performs transport operation, the first conveying arrangement starts the situation of transport operation, and the first conveying arrangement starts the situation of transport operation while the second conveying arrangement starts transport operation.
Such as, if use common conveying arrangement as the first conveying arrangement and the second conveying arrangement, then can the second conveying arrangement by tentatively heating after lead be transported to melting plant after, while preparing motlten metal, the first conveying arrangement starts the operation by being transported to heating station without preliminarily heated lead.
Simultaneously, if use conveying arrangement separately as the first conveying arrangement and the second conveying arrangement, then can second conveying arrangement perform by tentatively heating after lead be transported to the operation of melting plant while, the first conveying arrangement will be transported to heating station without preliminarily heated lead.
If start the first transport with transporting operations linkage with second in this way to operate, then can perform first step and second step concurrently.Thus, the activity duration for the preparation of motlten metal can reliably be shortened.Therefore, it is possible to significantly increase the output of time per unit electrode group.
In manufacturing method according to the invention, removal device is set, after motlten metal being injected mold in third step, removes the residue remaining in melting plant.Such as, preferably, the scraper of the motlten metal and derivative thereof that can strike off the bottom surface being attached to melting plant is used as removal device.By by motlten metal from melting plant inject mold die cavity portion after, removal device (scraper) is used to remove the motlten metal and derivative thereof that remain on the bottom surface of melting plant, the steady quality of weld interface can be made, and be formed in the less high-quality bus-bar with defects such as spaces of weld interface.
Can controller be set, in order to adjust the preliminarily heated heating-up temperature and heating time that perform in a first step, and the heating-up temperature of the heating performed in the second step and heating time, although make to determine the heating-up temperature in first step and second step and heating time as required, also predetermined temperature can be reached in the given time.Such as, can will have the heater of heating-up temperature adjustment function and there is the timer of set-up function heating time as controller.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the operation of the manufacture lead acid accumulator electrode group illustrated according to the embodiment of the present invention.
Fig. 2 A to 2C is the show in schematic partial sections of a part (heating station, melting plant and mold) for embodiments of the present invention respectively.
Fig. 3 is the show in schematic partial sections of a part (melting plant and scraper) for embodiments of the present invention.
Fig. 4 is the schematic diagram of a part (scraper and scraper maintaining part) for the embodiments of the present invention arrived from the side.
Fig. 5 is the schematic diagram of the operation of the manufacture lead acid accumulator electrode group illustrated according to prior art.
Fig. 6 is the schematic perspective view of the lead acid accumulator electrode group used in prior art.
Embodiment
Below, embodiments of the present invention are described in detail with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of the operation of the manufacture lead acid accumulator electrode group illustrated according to the embodiment of the present invention.The lead acid accumulator electrode group used in the present embodiment is the conventional electrode group (see Fig. 6) used, and makes as follows.
The making > of < electrode
Positive electrode and negative electrode have the active material remained on grid substrate.Grid substrate can be cast sheet gate substrate or draw in the net grid substrate.
Grid substrate comprises the lead as main component, and can comprise the tin, calcium, antimony etc. of interpolation.Especially, grid substrate preferably comprises calcium and the tin of interpolation.Add calcium and can reduce self-discharge rate.In addition, the possibility of contingent electrode corrosion when tin can suppress to add calcium is added.
The pasty state active material easily coating above-mentioned grid substrate can be used.The composition of pasty state active material is not particularly limited.Pasty state active material is made by mixing lead powder, water, sulfuric acid etc. containing lead monoxide (according to the characteristic of positive electrode and negative electrode, also adding the additives such as cutting fibre, carbon dust, lignin, barium sulfate and red lead once in a while).If grid is buried by amount completely that coat the pasty state active material of grid substrate, is enough.Preferably, being coated with pasty state active material makes its thickness reach the frame thickness or thicker at the most external place of grid.
By aging for such positive and negative electrode and dry, to make inchoate electrode.
The making > of < electrode group
Above-mentioned positive electrode and negative electrode is used to make electrode group (see Fig. 6).That is, the dividing plate 2 three positive electrodes 1 and four negative electrodes 3 made via glass fibre is alternately stacking, to make electrode group (ST1).Solder flux is coated positive electrode ear 4 and negative electrode ear 5 (ST2).In the present embodiment, replace the conventional liquid flux used, use pasty state solder flux to omit drying process (ST2).
The making > of < motlten metal
Fig. 2 is the partial sectional view of a part for the device used in the operation of the manufacture lead acid accumulator electrode group illustrated according to the embodiment of the present invention.
As shown in Figures 1 and 2, in the manufacturing process of lead acid accumulator according to the present embodiment by electrode group, heating station 6 is set in a first step, melting plant 8 is set in the second step, in third step, use mold 10, and conveying arrangement (not shown) is set.
First, in a first step, the first conveying arrangement will be transported to heating station 6 without preliminarily heated lead 7, and then lead 7 is tentatively heated to unfused predetermined temperature (see ST3, ST4 and Fig. 2 A).In the present embodiment, the pure lead containing inevitable impurity or lead alloy (terne metal etc.) can be used as above-mentioned lead.In the second step, the second conveying arrangement by tentatively heating after lead 7 be transported to melting plant 8, then lead 7 is heated to make lead be fused into the temperature (see ST5 and Fig. 2 B) of motlten metal 9 by melting plant 8.
The conveying arrangement that first conveying arrangement and the second conveying arrangement can be same conveying arrangement or separate.If use same conveying arrangement, then this conveying arrangement by tentatively heating after lead 7 be transported to melting plant 8 after, in melting plant 8, prepare motlten metal while, start the operation by being transported to heating station 6 without preliminarily heated lead 7.If use conveying arrangement separately, the operations linkage lead 7 after tentatively heating being transported to melting plant 8 then by performing with the second conveying arrangement, heating station 6 will be transported to without preliminarily heated lead 7 by the first conveying arrangement, the preliminary heating of lead 7 and the preparation of motlten metal can be performed concurrently.
Therefore, two benches heating is adopted.These two stages implement respectively in first step and second step.With heat the conventional method of lead in a same containers compared with, by performing first step to shorten the time of motlten metal preparation section during execution second step.This is because, although specific lead is melted and the total time reached needed for predetermined temperature almost identical in method of the present invention with conventional method, according to the present invention, the preliminary heating of lead and the preparation of motlten metal can be performed concurrently.Therefore, as bottleneck of the prior art motlten metal preparation section needed for time can relatively be shortened.In the present embodiment, the pitch time manufacturing the operation of lead acid accumulator electrode group can foreshorten to about 1/4th of prior art.
In addition, in the present embodiment, the lead 7 will melted by melting plant 8 is heated in advance at heating station 6.Therefore, with the lead under ambient temperature is introduced melting plant according to compared with the method for prior art, the temperature difference between the temperature that can reduce melting plant 8 and the temperature of the lead 7 being introduced into melting plant 8.Thus, can avoid, when new lead 7 is introduced into melting plant 8, occurring the sharply decline of temperature in the part of the melting plant 8 contacted with lead 7.Therefore, it is possible to suppress the thermal shock (and alleviating the local contraction of the melting plant 8 caused) putting on melting plant 8, this can prevent the damage to melting plant 8.
In the present embodiment, particularly, the articulated robot being configured to serve as the first conveying arrangement and the second conveying arrangement can be used, and two pawl air spiders can be used as end effector.
First, the lead 7 being positioned over lead inventory locations (not shown) is captured by two pawl air spiders, and is transported to the heating station 6 shown in Fig. 2 A.Lead has been processed to the cuboid that volume that volume is substantially equal to the die cavity portion 11 of mold 10 deducts the volume of the electrode group ear in the motlten metal immersed in die cavity portion 11.
Then, the lead 7 being heated to predetermined temperature at heating station 6 is captured by above-mentioned two pawl air spiders, and is transported to the melting plant 8 shown in Fig. 2 B.Afterwards, prepare motlten metal in melting plant 8 while, two pawl air spiders move to lead inventory locations and capture without preliminarily heated lead, and lead is transported to heating station 6.Now, lead 7 is arranged in both heating station 6 and melting plant 8, heats concurrently.
In the present embodiment, heating station 6 and melting plant 8 are provided with and are configured to adjustment heating-up temperature and the controller of heating time.Particularly, heating station 6 and melting plant 8 can comprise the timer (not shown) being configured to adjust heating time, and heating station 6 and melting plant 8 can comprise embedding inside to adjust the heater (not shown) of temperature.
In this case, even if ambient temperature and pipeline speed change, also can realize predetermined preliminary heating-up temperature and predetermined molten metal temperature with timer and heater, thus guarantee high welding quality.
In addition, because the surface of motlten metal is easily oxidized, and if oxidizing slag is mixed into the weld interface then welding quality reduction between ear and bus-bar, so by adjusting the time of preparing motlten metal according to the pitch time of fusing and subsequent handling, can suppress the generation of oxidizing slag.In addition, the viscosity of motlten metal can be adjusted by the temperature adjusting motlten metal.Therefore, even if there is the difformity in the shape of multiple bus-bar or the die cavity portion 11 of mold 10, the flowing of motlten metal also can be adjusted by the viscosity adjusting motlten metal.This prevents from forming the faults such as pore in bus-bar, thus can obtain good casting.
In order to support the fluctuation of lead composition, the seasonal fluctuation of ambient temperature, the diversity of die cavity portion shape and depend on the fluctuation of line speed of front and back operation, heter temperature and timer value can be set to, the temperature of the lead after preliminary heating can be adjusted in the scope of 280 DEG C ~ 320 DEG C, and the temperature of motlten metal can adjust in the scope of 480 DEG C ~ 520 DEG C.In addition, adopt there is good thermal endurance, thermal shock resistance properties and the corrosion proof cast iron material as heating station 6 and melting plant 8.
The casting > of < bus-bar
In third step, the motlten metal prepared in second step is injected mold, the ear of same polarity electrode is immersed in the motlten metal in mold, motlten metal is cooled, and carries out the demoulding, to complete bus-bar (ST6 to ST8).Particularly, the motlten metal 9 melted by melting plant 8 by the melting plant 8 that tilts as shown in FIG. 2 C injects die cavity portion 11, casts bus-bar.Melting plant 8 is rotatably supported by support (not shown), and cylinder, hydraulic cylinder, stepping motor etc. can be used to tilt.In the present embodiment, melting plant 8 is arranged on the top in die cavity portion 11, and only carries out by the operation of tilting.But, if owing to manufacturing the installing space of lead acid accumulator with the device of electrode group or the reason of pipeline structure, melting plant 8 and die cavity portion 11 are separated from each other setting, then melting plant 8 can move to die cavity portion 11 and motlten metal 9 be injected die cavity portion 11 while maintenance motlten metal 9.
Next, make the electrode group turned upside down made in advance, ear's (being coated with pasty state solder flux) of same polarity is immersed in the motlten metal 9 in die cavity portion 11, motlten metal 9 is made to cool and solidify by the cooling device (not shown) embedded in mold 10, then the demoulding is carried out, to complete bus-bar.
The removal > of < residue
In above-mentioned bus-bar casting process, the bottom that motlten metal 9 and oxidizing slag thereof are easily attached to melting plant 8 becomes residue.If do not remove such residue and cast next bus-bar, then cast bus-bar, the formation gap, interface thus between the bus-bar completed and ear under the state be mixed in motlten metal 9 at residue.This allows electrolyte to rise to enter this gap and cause corrosion, the fault thus the bad connection that can cause between electrode group and bus-bar or bus-bar come off etc.In addition, depending on the mixed volume of residue and be mixed into position, can there is fluctuation in the extent of corrosion of bus-bar, and this is easy to make the quality of lead acid accumulator unstable.In the prior art, blow pressure-air to the inner surface of melting plant 8 and remove residue.But residue may be interspersed within the surrounding enviroment comprising electrode group manufacturing installation, thus inevitably makes ecological deterioration.So residue is spreadable makes lead acid accumulator short circuit to electrode group.
Therefore, in the present embodiment, removal device is set, after motlten metal 9 being injected mold 10 in third step, removes the residue remained in melting plant 8.In the present embodiment, use the scraper 12 shown in Fig. 3 as this removal device.Fig. 3 illustrates that scraper 12 strikes off the residue of motlten metal to remove the schematic cross sectional views of the state of this residue.Fig. 4 is the schematic diagram of a part (scraper 12 and scraper maintaining part 13) for the embodiments of the present invention arrived from the side.
As shown in Figure 3, in the present embodiment, after the die cavity portion 11 by inclination melting plant 8 motlten metal 9 prepared by melting plant 8 being injected mold 10, change the inclination of melting plant 8, make the surface that contacts with motlten metal 9 relative to the installed surface maintenance level of welder.Then, by drive unit (not shown) the terminal part of scraper 12 is pressed on the surface contacted with motlten metal, make scraper 12 along the surface contacted with motlten metal 9, in the horizontal direction relative to welder installed surface, or the left and right directions seen in side view swings, remove above-mentioned residue with scraping.In the present embodiment, be configured to drive the device of scraper 12 to comprise the scraper maintaining part 13 shown in Fig. 4, it is arranged on and utilizes two cylinder (not shown) on fore-and-aft direction and the moveable arm of above-below direction.Scraper maintaining part 13 is made up of the scraper 12 shown in the schematic side elevation of Fig. 4 and spring 14.In figure 3 strike off the operation of residue during, the contact that spring 14 adjustment puts on the scraper 12 of the bottom surface of melting plant 8 makes it excessively unlikely, thus prevents the bottom surface of scratch melting plant 8 or damage scraper 12.In addition, adjust the enlargement and contraction of spring to adjust the repulsion of spring 14 thus the contact of adjustment scraper 12 by screwing and loosening the screw being arranged on spring 14 top, suitably can adjust residue and remove state.Because scraper 12 is for the residue before scraping cooling, therefore the material of scraper can adopt and easily obtains and have the SUS 304 compared with high corrosion-resistant and thermal endurance.The part contacted with the bottom surface of melting plant 8 of scraper 12 is processed to leave scratch on melting plant 8.
In the present embodiment, the width of scraper 12 is set to be less than the width in the residue removal face of melting plant 8.Thus, after scraper 12 swings and strikes off residue, the side that scraper 12 is being orthogonal to swaying direction moves up, and again swings to remove the residue not yet struck off.In the present embodiment, with compared with the method for prior art, the residue of motlten metal and the residue of oxidizing slag can not disseminate.Therefore, the environmental energy around electrode group manufacturing installation accesses improvement, thus reduces the fault of lead acid accumulator in welding sequence.
Although specifically illustrate embodiments of the present invention above, but the present invention is not limited to such execution mode, and the size of the assembly recorded in this embodiment, material, shape, relative position etc. can make a change with when thought when not departing from the scope of the present invention.
Industrial usability
According to the present invention, by performing first step during execution second step, the heating time that melting plant prepares motlten metal can be shortened.Thus, the time formed needed for bus-bar can significantly be shortened.Therefore, the present invention is applicable to the method and apparatus manufacturing lead acid accumulator electrode group, and applies electrode group and the lead acid accumulator of the manufacture of this method and apparatus.
The explanation of Reference numeral
1 positive electrode
2 dividing plates
3 negative electrodes
4 positive electrode ears
5 negative electrode ears
6 heating stations
7 leads
8 melting plants
9 motlten metals
10 molds
11 die cavity portions
12 scrapers
13 scraper maintaining parts
14 spring
Claims (7)
1. manufacture a method for lead acid accumulator electrode group, wherein form the bus-bar of the ear for connecting multiple same polarity electrode, described method comprises:
The lead plumbous or lead alloy made tentatively is heated to the first step of plumbous unfused temperature at heating station;
By melting plant, the described lead after described preliminary heating is heated to make lead be fused into the second step of the temperature of motlten metal; And
Described motlten metal is injected mold and the described motlten metal described ear immersed in described mold to form the third step of described bus-bar, wherein:
First conveying arrangement is set, in order to the described heating station that will be transported to without preliminarily heated described lead in described first step in described first step;
Second conveying arrangement is set, in order to the described lead after heating preliminary in described first step to be transported to the described melting plant in described second step;
The operations linkage described lead after described preliminary heating being transported to described melting plant performed with described second conveying arrangement, described first conveying arrangement starts the described operation being transported to described heating station without preliminarily heated described lead, makes to perform described first step during the described second step of execution; And
Removal device is set, after described motlten metal being injected described mold in described third step, removes the residue remained in described melting plant.
2. manufacture a method for lead acid accumulator electrode group, wherein form the bus-bar of the ear for connecting multiple same polarity electrode, described method comprises:
The lead plumbous or lead alloy made tentatively is heated to the first step of plumbous unfused temperature at heating station;
By melting plant, the described lead after described preliminary heating is heated to make lead be fused into the second step of the temperature of motlten metal; And
Described motlten metal is injected mold and the described motlten metal described ear immersed in described mold to form the third step of described bus-bar, wherein:
Described first step is performed during the described second step of execution.
3. the method for manufacture lead acid accumulator electrode group according to claim 2, wherein:
First conveying arrangement is set, in order to the described heating station that will be transported to without preliminarily heated described lead in described first step in described first step;
Second conveying arrangement is set, in order to the described lead after heating preliminary in described first step to be transported to the described melting plant in described second step; And
The operations linkage described lead after described preliminary heating being transported to described melting plant performed with described second conveying arrangement, described first conveying arrangement starts the described operation being transported to described heating station without preliminarily heated described lead.
4. the method for manufacture lead acid accumulator electrode group according to claim 3, wherein
After the described lead after described preliminary heating is transported to described melting plant by described second conveying arrangement, described first conveying arrangement starts the described operation being transported to described heating station without preliminarily heated described lead.
5. the method for manufacture lead acid accumulator electrode group according to claim 3, wherein
While the described lead after described preliminary heating is transported to described melting plant by described second conveying arrangement, described first conveying arrangement is transported to described heating station by described without preliminarily heated described lead.
6. the method for electrode group of the manufacture lead acid accumulator according to any one of claim 2 ~ 5, wherein
Removal device is set, after described motlten metal being injected described mold in described third step, removes the residue remained in described melting plant.
7. the method for electrode group of the manufacture lead acid accumulator according to any one of claim 1 ~ 6, wherein
Controller is set, in order to adjust the described preliminarily heated heating-up temperature that performs in described first step and heating time, and the heating-up temperature of the described heating performed in described second step and heating time.
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| CN201811426221.XA CN110010835A (en) | 2013-01-08 | 2014-01-07 | The method for manufacturing lead-acid accumulator electrode group |
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| JP2013000930 | 2013-01-08 | ||
| JP2013-000930 | 2013-01-08 | ||
| PCT/JP2014/050081 WO2014109315A1 (en) | 2013-01-08 | 2014-01-07 | Method for manufacturing electrode plate group for lead-acid battery |
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| CN201811426221.XA Pending CN110010835A (en) | 2013-01-08 | 2014-01-07 | The method for manufacturing lead-acid accumulator electrode group |
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| JP (1) | JP6107835B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465427A (en) * | 2018-12-27 | 2019-03-15 | 天能电池(芜湖)有限公司 | A kind of control method promoting casting rate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110899668A (en) * | 2019-12-16 | 2020-03-24 | 天能电池(芜湖)有限公司 | Cast-weld production process of storage battery without soldering flux |
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- 2014-01-07 CN CN201480002463.XA patent/CN104662709A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6107835B2 (en) | 2017-04-05 |
| WO2014109315A1 (en) | 2014-07-17 |
| JPWO2014109315A1 (en) | 2017-01-19 |
| CN110010835A (en) | 2019-07-12 |
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