CN108305985A - The extrusion process of grid - Google Patents

The extrusion process of grid Download PDF

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Publication number
CN108305985A
CN108305985A CN201711461141.3A CN201711461141A CN108305985A CN 108305985 A CN108305985 A CN 108305985A CN 201711461141 A CN201711461141 A CN 201711461141A CN 108305985 A CN108305985 A CN 108305985A
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grid
extrusion
plate
blank holder
soldering iron
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CN108305985B (en
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何幸华
李政文
黎少伟
何可立
马俊
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Guangzhou Zhuoyue Power New Energy Co Ltd
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Guangzhou Zhuoyue Power New Energy Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/04Processes of manufacture in general
    • H01M4/043Processes of manufacture in general involving compressing or compaction
    • H01M4/0435Rolling or calendering
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/04Processes of manufacture in general
    • H01M4/043Processes of manufacture in general involving compressing or compaction
    • H01M4/0433Molding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/14Electrodes for lead-acid accumulators
    • H01M4/16Processes of manufacture
    • H01M4/22Forming of electrodes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Forging (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

This application involves battery processing technique fields, specifically disclose the extrusion process of grid, include the following steps:(1) plank made of calendering will be passed through to compress on the table by blank holder;(2) driving slide moves down, when the changeover portion and web contact of staking punch, locating piece moves down together with staking punch, crushing block moves up simultaneously, until the epimere of staking punch passes through plank and leaves flange, crushing block and plank bottom surface offset and are pressed into flange when squeezing in slot, stop that sliding block is pushed to move down, and press by compressing switch;(3) after electric iron is heated to 328 350 DEG C, keep temperature constant, after the lead melting on flange, release is by compressing switch, until the lead solidification of melting, makes crushing block move down, and staking punch is made to be exited out of blank holder preformed hole;(4) so that blank holder is unclamped grid, and grid is removed from workbench.When this method is punched out plank, prismatic side can be squeezed out in the side of grid.

Description

板栅的挤压成型方法Grid Extrusion Forming Method

技术领域technical field

本发明涉及电池加工技术领域,具体涉及一种板栅的挤压成型方法。The invention relates to the technical field of battery processing, in particular to an extrusion molding method of a grid.

背景技术Background technique

因铅酸电池的性能稳定,且价格低廉,多年来一直被广泛应用于能源、通信、电力、交通和军事等领域。但是,由于铅酸电池的重量比能量较低,从而限制了其在某些技术领域的应用,如电动汽车。Due to its stable performance and low price, lead-acid batteries have been widely used in energy, communication, electric power, transportation and military fields for many years. However, lead-acid batteries have a low weight-to-energy ratio, which limits their application in certain technical fields, such as electric vehicles.

铅酸电池具有较高的重量比能量,但目前铅酸电池所用的板栅的栅格比较小且密集,其用铅量大,不能有效地涂覆活性物质,从而限制了其重量比能量的提高。为了降低用铅量,目前提出了一种碳纤维增强铅合金板栅。目前的碳纤维增强铅合金板栅由以下步骤加工而成,(1)碳纤维布高温脱胶:碳纤维布由单向长碳纤维和环氧树脂制成,将碳纤维布置于高温环境中烘烤,脱除环氧树脂;(2)碳纤维浸渍:在无水和惰性气体保护中,把经过第(1)步脱胶的碳纤维布浸入液态的钠-钾合金中,然后将碳纤维布拉出;(3)热挤压成型:碳纤维布经过第(2)步浸渍后,与高温、高压下铅或铅合金液一起骤冷,并挤压制成板材;(4)压延:第(3)步挤压而成的板材进行压延;(5)冲孔:经过第(4)步压延而成的板材冲压出孔。Lead-acid batteries have a high weight-to-weight ratio, but the grids used in lead-acid batteries are relatively small and dense, and they use a large amount of lead, which cannot effectively coat active materials, thus limiting their weight-to-weight ratio. improve. In order to reduce the amount of lead used, a carbon fiber reinforced lead alloy grid is currently proposed. The current carbon fiber reinforced lead alloy grid is processed by the following steps, (1) High temperature degumming of carbon fiber cloth: carbon fiber cloth is made of unidirectional long carbon fiber and epoxy resin, the carbon fiber is arranged in a high temperature environment and baked, and the ring is removed Oxygen resin; (2) carbon fiber impregnation: in anhydrous and inert gas protection, immerse the carbon fiber cloth degummed in step (1) into the liquid sodium-potassium alloy, and then pull out the carbon fiber; (3) hot extrusion Compression molding: After the carbon fiber cloth is impregnated in step (2), it is quenched with lead or lead alloy liquid under high temperature and high pressure, and extruded into a plate; (4) calendering: extruded in step (3) The plate is rolled; (5) punching: the plate formed by the rolling in step (4) is punched out.

以上方法虽然可以减少用铅量,并增大栅格,但由于板栅与板栅之间需要涂附膏体,当板栅处于竖直状态时,仅有栅格对膏体具有支撑作用,而由于板栅两侧均为平面,即板栅与膏体的接触面积小,因此两板栅之间的膏体常常出现向下滑落的情况,从而使膏体聚集在电池底部,使得电池的储电量降低。Although the above method can reduce the amount of lead used and increase the size of the grid, since the paste needs to be applied between the grid and the grid, when the grid is in a vertical state, only the grid can support the paste. And because both sides of the grid are flat, that is, the contact area between the grid and the paste is small, so the paste between the two grids often slides down, so that the paste gathers at the bottom of the battery, making the battery Reduced power storage.

发明内容Contents of the invention

本发明的目的在于提供一种板栅的挤压成型方法,以在对板材进行冲孔时,能在板栅的侧面挤压出棱形边,从而增大膏体与板栅侧面的接触面积。The purpose of the present invention is to provide a grid extrusion molding method, so that when the plate is punched, a prismatic edge can be extruded on the side of the grid, thereby increasing the contact area between the paste and the side of the grid .

为达到上述目的,本发明的基础方案如下:In order to achieve the above object, the basic scheme of the present invention is as follows:

板栅的挤压成型方法包括如下步骤:The extrusion molding method of the grid comprises the following steps:

(1)将经过压延而成的板材置于工作台上,并启动第一油缸推动压边圈下移,通过压边圈将板材压紧在工作台上;(1) Place the calendered plate on the workbench, start the first oil cylinder to push the blank holder down, and press the plate tightly on the workbench through the bezel;

(2)启动第二油缸驱动滑座向下移动,冲压头的过渡段与板材接触时,定位块与冲压头一同向下移动,同时挤压块向上移动,直至冲压头的上段穿过板材并在板材的底面留下翻边,且挤压块与板材底面相抵并将翻边压入挤压槽内时,使第二油缸停止推动滑块向下移动,此时按压按压开关,使电烙铁接通电源;(2) Start the second oil cylinder to drive the sliding seat to move down. When the transition section of the punching head is in contact with the plate, the positioning block and the punching head move down together, and at the same time the extrusion block moves up until the upper section of the punching head passes through the plate and When the flanging is left on the bottom surface of the plate, and the extrusion block is against the bottom surface of the plate and the flanging is pressed into the extrusion groove, the second oil cylinder is stopped to push the slider to move downward, and at this time, press the push switch to make the electric soldering iron Turn on the power;

(3)电烙铁加热至328-350℃后,保持温度恒定,待翻边上的铅熔融后,释放按压开关,直至熔融的铅凝固,获得成型后的板栅,再使挤压块下移,并启动第二油缸驱动滑座向上移动,直至冲压头从压边圈的预留孔内退出;(3) After the electric soldering iron is heated to 328-350°C, keep the temperature constant. After the lead on the flange is melted, release the push switch until the molten lead solidifies to obtain a formed grid, and then move the extrusion block down , and start the second oil cylinder to drive the sliding seat to move upward until the stamping head withdraws from the reserved hole of the blank holder;

(4)启动第一油缸驱动压边圈向上移动,使压边圈松开板栅,并将板栅从工作台上取下。(4) Start the first oil cylinder to drive the blank holder to move upward, so that the blank holder loosens the grid and removes the grid from the workbench.

本方案板栅的挤压成型方法的原理在于:The principle of extrusion forming method of grid in this scheme is:

以上板栅的挤压成型方法采用一种板栅挤压设备进行;该板栅挤压设备包括座体、固定连接在座体上的工作台、设于工作台上方的压边圈和冲压部,以及设于工作台下方的棱边成型部。压边圈设于工作台和冲压部之间,并设有第一油缸与压边圈连接,以使第一油缸能驱动压边圈上下移动。冲压部包括第二油缸、滑座及固定在滑座底面的冲压头,冲压头包括上段和下段,下段的截面积小于上段的截面积,且上段和下段之间设有锥形的过渡段,压边圈上设有预留孔,冲压头可伸入预留孔内;第二油缸与滑座连接,以使第二油缸能驱动的滑座上下移动。棱边成型部包括固定座,固定座上滑动连接有挤压轴,挤压轴可沿竖直方向上下滑动,且挤压轴与冲压头相对,挤压轴的下方设与挤压轴相抵的压簧;固定座上设有第一油腔和第二油腔,第一油腔位于挤压轴的外周,第二油腔位于第一油腔外周,第一油腔和第二油腔的底部连通,且第一油腔内设有与挤压轴固定连接的活塞。第二油腔内设有将第二油腔上端封堵的挤压块,而第一油腔内设有将第一油腔上端封堵的定位块。挤压块的顶部设有横截面为三角形的挤压槽,且挤压块上端的内部设有电烙铁,挤压轴的下方设有与电烙铁电连接的按压开关。挤压块内设有密闭的气腔及可从挤压块的侧面滑出的定位销,定位销的一端伸入气腔内,固定座上设有可与定位销另一端配合的定位孔,气腔内设有与定位销连接的复位弹簧,且挤压块内设有一端与电烙铁接触、另一端与伸入气腔内的导热片。The extrusion forming method of the above grid is carried out by a grid extrusion equipment; the grid extrusion equipment includes a base body, a workbench fixedly connected to the base body, a blank holder and a stamping part arranged above the workbench, And the edge forming part located under the workbench. The binder ring is arranged between the workbench and the stamping part, and a first oil cylinder is connected with the binder ring, so that the first oil cylinder can drive the binder ring to move up and down. The stamping part includes a second oil cylinder, a sliding seat and a punching head fixed on the bottom surface of the sliding seat. The punching head includes an upper section and a lower section. The cross-sectional area of the lower section is smaller than that of the upper section, and a tapered transition section is provided between the upper section and the lower section. There is a reserved hole on the blank holder ring, and the stamping head can extend into the reserved hole; the second oil cylinder is connected with the sliding seat so that the second oil cylinder can drive the sliding seat to move up and down. The edge forming part includes a fixed seat, which is slidably connected with an extrusion shaft, the extrusion shaft can slide up and down in the vertical direction, and the extrusion shaft is opposite to the stamping head, and the bottom of the extrusion shaft is arranged to offset the extrusion shaft. Compression spring; the fixed seat is provided with a first oil chamber and a second oil chamber, the first oil chamber is located on the outer periphery of the extrusion shaft, the second oil chamber is located on the outer periphery of the first oil chamber, the first oil chamber and the second oil chamber The bottom is connected, and a piston fixedly connected with the extruding shaft is arranged in the first oil chamber. The second oil chamber is provided with an extruding block that blocks the upper end of the second oil chamber, and the first oil chamber is provided with a positioning block that blocks the upper end of the first oil chamber. The top of the extruding block is provided with an extruding groove with a triangular cross section, and an electric soldering iron is arranged inside the upper end of the extruding block, and a push switch electrically connected with the electric soldering iron is arranged under the extruding shaft. There is a closed air cavity inside the extrusion block and a positioning pin that can slide out from the side of the extrusion block. One end of the positioning pin extends into the air cavity, and a positioning hole that can cooperate with the other end of the positioning pin is provided on the fixing seat. The air cavity is provided with a return spring connected with the positioning pin, and the extruding block is provided with one end in contact with the electric soldering iron and the other end with a heat conduction sheet extending into the air cavity.

在步骤(1)中,通过压边圈一方面可以压紧板材,另一方面,在对板材进行冲孔时,压边圈可以避免板材弯曲变形。In step (1), on the one hand, the blank holder can compress the plate, and on the other hand, when the plate is punched, the blank holder can prevent the plate from bending and deformation.

在步骤(2)中,冲压头的下段向板材施压时,定位块对板材的底面具有支撑作用,防止冲压头对板材施加的压力,使板材向下凹陷。另外通过冲压头的下段与定位块配合将对板材形成剪切力,从而与冲压头下段底面相接触的部分将被从板材上剪切掉。随着冲压头继续向下移动,当冲压头的过渡段进入到冲压孔内时,由于过渡段的截面逐渐增大,因此过渡段对冲压头周围的材料具有撕裂作用;且在冲压头过渡段与板材接触后,定位块将与冲压头一同向下移动,从而定位块对板材不再具有支撑作用,因此,随着过渡段不断深入冲压孔内时,被撕裂的材料将在板材的底面形成翻边。在定位块向下移动的同时,挤压块向上移动,而在冲压头的上段穿过板材后,挤压块的上部将与板材相抵,从而板材被夹紧在压边圈和挤压块之间,而翻边被压缩在挤压槽内。In step (2), when the lower section of the stamping head exerts pressure on the plate, the positioning block has a supporting effect on the bottom surface of the plate, preventing the stamping head from exerting pressure on the plate and causing the plate to sag downward. In addition, the cooperation between the lower section of the stamping head and the positioning block will form a shearing force on the plate, so that the part in contact with the bottom surface of the lower section of the stamping head will be sheared off from the plate. As the punching head continues to move downward, when the transition section of the punching head enters the punching hole, because the cross section of the transition section gradually increases, the transition section has a tearing effect on the material around the punching head; and when the punching head transitions After the section is in contact with the plate, the positioning block will move down together with the punching head, so that the positioning block no longer has a supporting effect on the plate. The bottom surface forms a cuff. While the positioning block moves downward, the extrusion block moves upward, and after the upper section of the punching head passes through the plate, the upper part of the extrusion block will be against the plate, so that the plate is clamped between the blank holder and the extrusion block Between, while the flanging is compressed in the extrusion groove.

板栅挤压设备在执行步骤(2)时,具体的过程为,冲压头的下段与板材接触时,定位块一直对板材起到支撑作用;当冲压头的过渡段与板材接触时,冲压头下段的底面与挤压轴的顶部接触,从而驱动挤压轴一同向下移动。第一油腔和第二油腔充满了液压油,且设于第一油腔内的活塞与挤压轴固定连接,因此活塞随挤压轴一同向下移动,则第一油腔内活塞上方的空间逐渐增大,使得定位块下移;而第一油腔内活塞下方的空间逐渐减小,使得第一油腔内的液压油被挤压进第二油腔内,则挤压块将向上移动,当挤压轴与其下方的按压开关接触时,按压开关打开,使得电烙铁接通电源。When the grid extrusion equipment performs step (2), the specific process is that when the lower section of the punching head is in contact with the sheet, the positioning block always supports the sheet; when the transition section of the punching head is in contact with the sheet, the punching head The bottom surface of the lower section is in contact with the top of the extrusion shaft, thereby driving the extrusion shaft to move downward together. The first oil chamber and the second oil chamber are filled with hydraulic oil, and the piston in the first oil chamber is fixedly connected with the extruding shaft, so the piston moves downward with the extruding shaft, and the piston above the first oil chamber The space in the first oil chamber gradually increases, so that the positioning block moves down; while the space under the piston in the first oil chamber gradually decreases, so that the hydraulic oil in the first oil chamber is squeezed into the second oil chamber, and the extrusion block will Move upwards, when the extrusion shaft contacts the push switch below it, the push switch is turned on, so that the electric soldering iron is powered on.

步骤(2)中形成的翻边被压缩到挤压槽内,且电烙铁接通了电源。在步骤(3)中,电烙铁的温度将传导至挤压槽的侧壁上,当电烙铁的升高至328℃后,挤压槽的侧壁的温度也将升高至328℃,该温度为铅的熔点,因此保持该温度一段时间后,铅将呈熔融状态。释放按压开关,停止对电烙铁继续加热,温度降低后铅将凝固并成型为挤压槽的形状,且与板栅融合。The flanging formed in step (2) is compressed into the extrusion groove, and the electric soldering iron is powered on. In step (3), the temperature of the electric soldering iron will be conducted to the side wall of the extrusion tank. When the temperature of the electric soldering iron rises to 328°C, the temperature of the side wall of the extrusion tank will also rise to 328°C. The temperature is the melting point of lead, so when held at this temperature for a period of time, the lead will be in a molten state. Release the push switch and stop heating the soldering iron. After the temperature drops, the lead will solidify and form the shape of the extrusion groove, and fuse with the grid.

板栅挤压设备在执行步骤(3)时,具体的过程为:由于电烙铁与导热片接触,电烙铁的温度将传导至气腔内,气腔内的温度升高将使气腔内的压强增大,从而气腔内的气体作用在定位销上的压力增大,因此定位销向外伸出并与定位孔配合,从而使挤压块与固定座呈固定状态。当冲压头向上移动后,挤压轴在压簧的作用下也向上移动,按压开关被释放,而此时气腔内的温度仍然较高,因此定位销不会立刻缩回。随着电烙铁的温度逐渐降低,挤压槽和气腔内的温度也将逐渐降低,则熔融后的铅将逐渐凝固;温度降低到一定值后,铅将达到不易被破坏的硬度,同时气腔内的压强也将降低,则定位销缩回,定位销与定位孔脱离配合,则挤压块向下移动。When the grid extrusion equipment executes step (3), the specific process is: due to the contact between the electric soldering iron and the heat conducting sheet, the temperature of the electric soldering iron will be conducted to the air cavity, and the temperature rise in the air cavity will make the temperature in the air cavity As the pressure increases, the pressure of the gas in the air cavity acting on the positioning pin increases, so the positioning pin protrudes outward and cooperates with the positioning hole, so that the extrusion block and the fixing seat are in a fixed state. After the stamping head moves upwards, the extrusion shaft also moves upwards under the action of the stage clip, and the push switch is released. At this time, the temperature in the air cavity is still high, so the positioning pin will not retract immediately. As the temperature of the electric soldering iron gradually decreases, the temperature in the extrusion groove and the air cavity will also gradually decrease, and the molten lead will gradually solidify; The pressure inside will also be reduced, then the positioning pin will retract, the positioning pin will disengage from the positioning hole, and then the extrusion block will move downward.

在步骤(4)中,通过使压边圈上移,则可使压边圈松开板栅,从而可将板栅从工作台上取下。In step (4), by moving the blank holder up, the blank holder can release the grid, so that the grid can be removed from the workbench.

本方案产生的有益效果是:The beneficial effects of this program are:

(一)在步骤(3)中,通过对板栅进行冲孔,可同时在冲压孔的周围形成翻边,然后再通过挤压块可将翻边挤压成棱形,从而可以使膏体与板栅侧面的接触面积增大。(1) In step (3), by punching the grid, flanging can be formed around the punching hole at the same time, and then the flanging can be extruded into a prismatic shape by the extrusion block, so that the paste can be made The contact area with the sides of the grid is increased.

(二)在步骤(4)中,通过电烙铁导热可将挤压成型的棱边加热并熔化,然后再冷却成型,从而使棱边与板栅融为一体,可提高棱边强度。(2) In step (4), the extruded edge can be heated and melted by electric soldering iron heat conduction, and then cooled and formed, so that the edge and the grid are integrated, and the strength of the edge can be improved.

优选方案一:作为对基础方案的进一步优化,所述步骤(2)中,冲压头的过渡段与板材接触后,冲压头向下移动的速度为3-5cm/s。在过渡段与板材接触后,定位块开始向下移动,从而定位块对冲压孔的边沿不再具有支撑作用,此时减慢冲压头的移动速度可以避免冲压孔的边沿受到的冲击力过大,有利于冲压孔边沿的板材均匀地撕裂,使冲压孔各边沿处形成大小一致的翻边。Preferred option 1: As a further optimization of the basic solution, in the step (2), after the transition section of the punch head contacts the plate, the punch head moves downward at a speed of 3-5 cm/s. After the transition section is in contact with the plate, the positioning block starts to move downward, so that the positioning block no longer has a supporting effect on the edge of the punching hole. At this time, slowing down the moving speed of the punching head can avoid excessive impact force on the edge of the punching hole , which is conducive to the uniform tearing of the plate at the edge of the punching hole, so that the edges of the punching hole can form flanges of the same size.

优选方案二:作为对优选方案一的进一步优化,所述步骤(3)中,电烙铁的加热至330℃;电烙铁的温度过高,熔融后的铅的流动性较强,从而容易造成铅向下流动主要集中在棱边的下部;另外,熔融铅的温度过高,则铅冷却凝固的时间将延长。Preferred option 2: As a further optimization of preferred option 1, in the step (3), the electric soldering iron is heated to 330°C; the temperature of the electric soldering iron is too high, and the melted lead has a strong fluidity, which easily causes lead The downward flow is mainly concentrated on the lower part of the edge; in addition, if the temperature of the molten lead is too high, the time for the lead to cool and solidify will be prolonged.

优选方案三:作为对优选方案二的进一步优化,所述步骤(3)中,电烙铁的温度维持在330℃的时间为4-6min。加热时间过短将导致铅无法完全融化,而铅的加热时间过长,熔融后的铅将产生一定的流动,从而容易造成部分铅从碳纤维表面脱离。The third preferred option: As a further optimization of the second preferred option, in the step (3), the temperature of the electric soldering iron is maintained at 330° C. for 4-6 minutes. If the heating time is too short, the lead cannot be completely melted, and if the lead heating time is too long, the melted lead will flow to a certain extent, which will easily cause part of the lead to detach from the carbon fiber surface.

优选方案四:作为对优选方案三的进一步优化,所述步骤(3)中,电烙铁的温度降低至150℃以下后,挤压块再向下移动。当电烙铁的温度将降低至150℃以下时,凝固后的铅的温度也将降低至150℃以下,此时铅的表面达到较高的硬度,可避免在卸除板栅时,由于碰撞导致棱边变形。当电烙铁的温度降低至150℃以下后,气腔内的温度也将降低至150℃以下,从而使气腔内的压强降低,则定位销缩回并与定位孔脱离配合。定位销与定位孔脱离配合的温度由气腔的原始压强决定,因此通过调节气腔内的原始压强,可改变定位销和定位孔脱离配合的温度。Preferred option 4: As a further optimization of preferred option 3, in the step (3), after the temperature of the electric soldering iron is lowered below 150° C., the extruding block moves downward again. When the temperature of the electric soldering iron will drop below 150°C, the temperature of the solidified lead will also drop below 150°C. At this time, the surface of the lead will reach a relatively high hardness, which can avoid damage caused by collisions when removing the grid. Edge deformation. When the temperature of the electric soldering iron drops below 150° C., the temperature in the air cavity will also drop below 150° C., thereby reducing the pressure in the air cavity, and the positioning pin retracts and disengages from the positioning hole. The temperature at which the positioning pin and the positioning hole disengage is determined by the original pressure of the air cavity, so by adjusting the original pressure in the air cavity, the temperature at which the positioning pin and the positioning hole disengage can be changed.

附图说明Description of drawings

图1为板栅挤压设备未冲压出冲压孔时的结构示意图;Fig. 1 is a structural schematic diagram of the grid extrusion equipment when punching holes are not punched out;

图2为板栅挤压设备已冲压出冲压孔时的结构示意图;Fig. 2 is a schematic diagram of the structure of the grid extrusion equipment when punching holes have been punched out;

图3为图1中A部分的放大图;Fig. 3 is an enlarged view of part A in Fig. 1;

图4为两板栅相互配合的示意图。Fig. 4 is a schematic diagram of mutual cooperation of two grids.

具体实施方式Detailed ways

下面通过具体实施方式对本发明作进一步详细的说明:The present invention will be described in further detail below by means of specific embodiments:

说明书附图中的附图标记包括:压边圈10、预留孔11、冲压头20、固定座30、按压开关31、第二油腔32、挤压轴33、活塞34、压簧35、挤压块36、定位块37、第一油腔38、气腔41、定位销42、复位弹簧43、定位孔44、导热块45、挤压槽46、电烙铁47、板材50、翻边51、板栅60、棱边61、膏体62。The reference signs in the drawings of the description include: blank holder 10, reserved hole 11, stamping head 20, fixed seat 30, press switch 31, second oil chamber 32, extrusion shaft 33, piston 34, compression spring 35, Extrusion block 36, positioning block 37, first oil chamber 38, air chamber 41, positioning pin 42, return spring 43, positioning hole 44, heat conduction block 45, extrusion groove 46, electric soldering iron 47, plate 50, flange 51 , Grid 60, edge 61, paste 62.

本实施例的板栅60的挤压成型方法采用一种板栅60挤压设备进行。如图1、图2和图3,板栅60挤压设备从上至下依次包括冲压部、压边圈10、工作台和棱边61成型部;且还包括座体,工作台固定在座体上,座体上安装有机架,冲压部和压边圈10均安装在机架上。压边圈10与机架滑动连接,且压边圈10仅可沿竖直方向滑动,并设有第一油缸与压边圈10连接,以驱动压边圈10上下移动。冲压部包括第二油缸、滑座及固定在滑座底部的冲压头20;滑座滑动连接在机架上,且滑座仅能沿竖直方向滑动,第二油缸与滑座连接,从而通过第二油缸可驱动滑座上下滑动。冲压头20包括上段和下段,上段和下段的截面均呈正四边形,下段的截面积小于上段的截面积,上段和下段之间设有棱锥形的过渡段。压边圈10上设有预留孔11,冲压头20可伸入预留孔11内;压边圈10可将板材50压紧在工作台上,则冲压头20下移并伸入预留孔11内可对板材50进行冲孔。The extrusion molding method of the grid 60 in this embodiment is carried out by using a grid 60 extrusion equipment. As shown in Figure 1, Figure 2 and Figure 3, the grid 60 extrusion equipment includes a stamping part, a blank holder 10, a workbench and an edge 61 forming part in sequence from top to bottom; and also includes a base body, and the workbench is fixed on the base body On, a frame is installed on the seat body, and the stamping part and the blank holder 10 are all installed on the frame. The blank holder 10 is slidingly connected with the frame, and the blank holder 10 can only slide vertically, and a first oil cylinder is connected with the blank holder 10 to drive the blank holder 10 to move up and down. The stamping part includes a second oil cylinder, a slide and a stamping head 20 fixed on the bottom of the slide; The second oil cylinder can drive the sliding seat to slide up and down. The stamping head 20 includes an upper section and a lower section, both of which have regular quadrilateral cross-sections, the lower section has a smaller cross-sectional area than the upper section, and a pyramid-shaped transition section is arranged between the upper section and the lower section. The blank holder 10 is provided with a reserved hole 11, and the stamping head 20 can be inserted into the reserved hole 11; The plate 50 can be punched in the hole 11 .

棱边61成型部包括与座体固定的固定座30,固定座30的中部滑动连接有挤压轴33,挤压轴33可沿竖直方向上下滑动,挤压轴33与冲压头20相对,挤压轴33的下方设与挤压轴33相抵的压簧35,当冲压头20向下移动并与挤压轴33相抵时,可克服压簧35的弹力,从而使挤压轴33向下移动;而当挤压轴33向上移动时,在压簧35弹力的作用下,挤压轴33将向上移动。固定座30内设有第一油腔38和第二油腔32,第一油腔38环绕在挤压轴33的外周,第二油腔32环绕在第一油腔38外周,第一油腔38和第二油腔32的顶部在固定座30的上端面上设有开口。第一油腔38内设有可竖直滑动的定位块37,定位块37从第一油腔38顶部的开口向上伸出;第二油腔32内设有可竖直滑动的棱边61挤压块36,棱边61挤压块36从第二油腔32上端的开口向上伸出。第一油腔38和第二油腔32的底部连通,且第一油腔38内设有与挤压轴33固定连接的活塞34,第一油腔38和第二油腔32内填满液压油,当活塞34随挤压轴33向下滑动时,活塞34将第一油腔38内的液压油挤压入第二油腔32内,则棱边61挤压块36向上移动,而定位块37向下移动。棱边61挤压块36的顶部设有横截面为三角形的挤压槽46,且棱边61挤压块36上端的内部设有电烙铁47,挤压轴33的下方设有与电烙铁47电连接的按压开关31,按压开关31受到挤压时,电烙铁47接通电源。棱边61挤压块36底部设有密闭的气腔41及可从棱边61挤压块36的侧面滑出的定位销42,定位销42的一端伸入气腔41内,固定座30上设有可与定位销42另一端配合的定位孔44,气腔41内设有与定位销42连接的复位弹簧43,且棱边61挤压块36内设有导热片,导热片的一端与电烙铁47接触、导热片另一端伸入气腔41内。当电烙铁47温度升高时,气腔41内的温度升高时,气腔41内的压强将增大,从而可使定位销42伸出。调节气腔41的原始压强,即气腔41内部的温度为常温时气腔41的压强,则可改变定位销42在原始状态时的位置,则定位销42与定位孔44脱离配合时气腔41的温度也不同。The forming portion of the edge 61 includes a fixed seat 30 fixed to the seat body. The middle part of the fixed seat 30 is slidably connected with an extruding shaft 33. The extruding shaft 33 can slide up and down in the vertical direction. The extruding shaft 33 is opposite to the stamping head 20. Below the extrusion shaft 33, there is a compression spring 35 that is in contact with the extrusion shaft 33. When the stamping head 20 moves downward and is in contact with the extrusion shaft 33, the elastic force of the compression spring 35 can be overcome, so that the extrusion shaft 33 is pushed downward. and when the extruding shaft 33 moves upward, under the action of the elastic force of the compression spring 35, the extruding shaft 33 will move upward. The fixed seat 30 is provided with a first oil chamber 38 and a second oil chamber 32, the first oil chamber 38 surrounds the outer circumference of the extruding shaft 33, the second oil chamber 32 surrounds the first oil chamber 38, and the first oil chamber 38 and the top of the second oil chamber 32 are provided with openings on the upper end surface of the holder 30 . The first oil chamber 38 is provided with a vertically slidable positioning block 37, and the positioning block 37 protrudes upwards from the opening at the top of the first oil chamber 38; the second oil chamber 32 is provided with a vertically slidable edge 61 to squeeze The pressing block 36 and the edge 61 protrude upward from the opening at the upper end of the second oil chamber 32 . The bottoms of the first oil chamber 38 and the second oil chamber 32 communicate, and the first oil chamber 38 is provided with a piston 34 fixedly connected with the extruding shaft 33, and the first oil chamber 38 and the second oil chamber 32 are filled with hydraulic pressure. Oil, when the piston 34 slides down with the extrusion shaft 33, the piston 34 squeezes the hydraulic oil in the first oil chamber 38 into the second oil chamber 32, and the edge 61 squeezes the block 36 to move upwards, and the positioning Block 37 moves down. The top of the edge 61 extrusion block 36 is provided with an extrusion groove 46 with a triangular cross section, and the inside of the edge 61 extrusion block 36 upper end is provided with an electric soldering iron 47, and the bottom of the extrusion shaft 33 is provided with an electric soldering iron 47. The electrically connected push switch 31, when the push switch 31 is squeezed, the electric soldering iron 47 is powered on. Edge 61 extrusion block 36 bottoms are provided with airtight air cavity 41 and can slide out the positioning pin 42 from the side of edge 61 extrusion block 36, and one end of positioning pin 42 stretches in the air cavity 41, on the fixed seat 30 A positioning hole 44 that can be matched with the other end of the positioning pin 42 is provided. A return spring 43 connected to the positioning pin 42 is provided in the air cavity 41, and a heat conducting sheet is arranged in the edge 61 extrusion block 36, and one end of the heat conducting sheet is connected with the positioning pin 42. The electric soldering iron 47 is in contact with, and the other end of the heat conducting plate stretches into the air cavity 41 . When the temperature of the electric soldering iron 47 rises and the temperature in the air cavity 41 rises, the pressure in the air cavity 41 will increase, so that the positioning pin 42 can be stretched out. Adjust the original pressure of the air chamber 41, that is, the pressure of the air chamber 41 when the temperature inside the air chamber 41 is normal temperature, then the position of the positioning pin 42 in the original state can be changed, and the air chamber when the positioning pin 42 and the positioning hole 44 are disengaged The temperature of 41 is also different.

板栅60挤压设备运行的过程为:将板材50定位并通过压边圈10将板材50压紧工作台上;并使冲压头20向下移动,当冲压头20的下段与板材50接触时,定位块37一直对板材50起到支撑作用,在冲压块和定位块37的剪切作用下,在板材50上将形成冲压孔。当冲压头20的过渡段与板材50接触时,冲压头20下段的底面与挤压轴33的顶部接触,从而驱动挤压轴33一同向下移动。活塞34随挤压轴33一同向下移动,则第一油腔38内活塞34上方的空间逐渐增大,使得定位块37下移;而第一油腔38内活塞34下方的空间逐渐减小,使得第一油腔38内的液压油被挤压进第二油腔32内,则棱边61挤压块36将向上移动,定位块37对板材50不再具有支撑作用,随着过渡段不断深入冲压孔内时,被撕裂的材料将在板材50的底面形成翻边51。棱边61挤压块36向上移动并与板材50相抵,从而板材50被夹紧在压边圈10和棱边61挤压块36之间,而翻边51被压缩在挤压槽46内。The operation process of the grid 60 extrusion equipment is: positioning the plate 50 and pressing the plate 50 onto the workbench through the blank holder 10; , the positioning block 37 has been supporting the plate 50 , and under the shear action of the punching block and the positioning block 37 , a punching hole will be formed on the plate 50 . When the transition section of the punch head 20 is in contact with the plate 50 , the bottom surface of the lower section of the punch head 20 contacts the top of the extrusion shaft 33 , thereby driving the extrusion shaft 33 to move downward together. The piston 34 moves downward together with the extrusion shaft 33, and the space above the piston 34 in the first oil chamber 38 gradually increases, so that the positioning block 37 moves down; while the space below the piston 34 in the first oil chamber 38 gradually decreases , so that the hydraulic oil in the first oil chamber 38 is squeezed into the second oil chamber 32, then the edge 61 extrusion block 36 will move upwards, and the positioning block 37 no longer has a supporting effect on the plate 50, as the transition section When going deeper into the punching hole, the torn material will form a flange 51 on the bottom surface of the plate 50 . The pressing block 36 of the edge 61 moves upwards and abuts against the plate 50 , so that the plate 50 is clamped between the blank holder ring 10 and the pressing block 36 of the edge 61 , and the flange 51 is compressed in the pressing groove 46 .

当挤压轴33与其下方的按压开关31接触时,按压开关31打开,使得电烙铁47接通电源。电烙铁47的温度将传导至气腔41内,气腔41内的温度升高将使气腔41内的压强增大,定位销42向外伸出并与定位孔44配合,使棱边61挤压块36与固定座30呈固定状态。当冲压头20向上移动后,挤压轴33在压簧35的作用下也向上移动,按压开关31被释放,由于气腔41内的温度仍然较高,因此定位销42不会立刻缩回。随着电烙铁47的温度逐渐降低,挤压槽46和气腔41内的温度也将逐渐降低,则熔融后的铅将逐渐凝固;温度降低到一定值后,定位销42与定位孔44脱离配合,则棱边61挤压块36向下移动。当电烙铁47的升高至328℃后,挤压槽46的侧壁的温度也将升高至328℃,保持该温度一段时间后,铅将呈熔融状态。释放按压开关31,停止对电烙铁47继续加热,随着温度降低,铅将凝固并成型为挤压槽46的形状并与板栅60融合。When the extrusion shaft 33 contacts the push switch 31 below it, the push switch 31 is turned on, so that the electric soldering iron 47 is powered on. The temperature of the electric soldering iron 47 will be conducted into the air cavity 41, and the temperature rise in the air cavity 41 will increase the pressure in the air cavity 41, and the positioning pin 42 will protrude outwards and cooperate with the positioning hole 44, so that the edge 61 The extruding block 36 and the fixing seat 30 are in a fixed state. After the stamping head 20 moved upwards, the extruding shaft 33 also moved upwards under the action of the stage clip 35, and the push switch 31 was released. Since the temperature in the air cavity 41 was still high, the positioning pin 42 would not retract immediately. As the temperature of the electric soldering iron 47 gradually decreases, the temperature in the extrusion groove 46 and the air cavity 41 will also gradually decrease, and the melted lead will gradually solidify; after the temperature drops to a certain value, the positioning pin 42 will be disengaged from the positioning hole 44 , then the edge 61 squeezes the block 36 and moves downward. After the electric soldering iron 47 rises to 328 DEG C, the temperature of the sidewall of the extrusion groove 46 will also rise to 328 DEG C, and after keeping this temperature for a period of time, the lead will be in a molten state. Release the push switch 31, stop heating the electric soldering iron 47, and as the temperature decreases, the lead will solidify and form the shape of the extrusion groove 46 and fuse with the grid 60.

板栅60的挤压成型方法包括如下步骤:The extrusion molding method of grid 60 comprises the following steps:

(1)将经过压延而成的板材50置于工作台上,并启动第一油缸推动压边圈10下移,通过压边圈10将板材50压紧在工作台上;并调整气腔41内的初始气压,使定位销42和定位孔44在配合状态下,气腔41内的温度从高温降低至150℃后,定位销42与定位孔44脱离配合。(1) Place the calendered plate 50 on the workbench, start the first oil cylinder to push the blank holder 10 down, press the plate 50 on the workbench through the bezel 10; and adjust the air chamber 41 The initial air pressure inside makes the positioning pin 42 and the positioning hole 44 in a mated state, and after the temperature in the air chamber 41 drops from high temperature to 150° C., the positioning pin 42 and the positioning hole 44 are disengaged.

(2)启动第二油缸驱动滑座向下移动,并使冲压头20穿过压边圈10上的预设孔,冲压头20的下段与板材50接触时,冲压头20向下移动的速度为30cm/s,冲压头20的下段及过渡段与板材50接触时,冲压头20向下移动的速度为5cm/s;冲压头20下段的底部与挤压轴33的顶部接触后,继续向下移动冲压头20,直至挤压轴33的底部按压按压开关31。(2) Start the second oil cylinder to drive the sliding seat to move downward, and make the stamping head 20 pass through the preset hole on the blank holder 10. When the lower section of the stamping head 20 contacts the plate 50, the speed at which the stamping head 20 moves downward is 30cm/s, when the lower section and the transition section of the punching head 20 are in contact with the plate 50, the speed at which the punching head 20 moves downward is 5cm/s; Move the stamping head 20 downward until the bottom of the extruding shaft 33 presses the push switch 31 .

(3)电烙铁47加热至330℃后,保持温度恒定,并使挤压轴33持续按压按压开关31六分钟后,向上移动冲压头20,以释放按压开关31;气腔41内的温度降低至150℃后,定位销42与定位孔44脱离配合,同时棱边61挤压块36向下移动,并获得成型后的板栅60;启动第二油缸驱动滑座向上移动,直至冲压头20从压边圈10的预留孔11内退出。(3) After the electric soldering iron 47 is heated to 330°C, keep the temperature constant, and make the extruding shaft 33 press the push switch 31 continuously for six minutes, then move the stamping head 20 upwards to release the push switch 31; the temperature in the air cavity 41 decreases After reaching 150°C, the positioning pin 42 is disengaged from the positioning hole 44, and at the same time, the extrusion block 36 of the edge 61 moves downward, and the formed grid 60 is obtained; the second oil cylinder is started to drive the sliding seat to move upward until the stamping head 20 Exit from the reserved hole 11 of the blank holder 10.

(4)启动第一油缸驱动压边圈10向上移动,使压边圈10松开板栅60,并将板栅60从工作台上取下。(4) Start the first oil cylinder to drive the blank holder 10 to move upward, so that the blank holder 10 releases the grid 60 and removes the grid 60 from the workbench.

如图4所示,60为通过以上方法获得的板栅60,两板栅60通过图4中的方式设置,并在量板栅60之间填充有膏体62,由于棱边61为棱形,因此可增大膏体62与板栅60表面的接触面积,增大膏体62在板栅60表面的吸附力,从而避免膏体62向下掉落。As shown in Figure 4, 60 is the grid 60 obtained by the above method, the two grids 60 are arranged in the manner in Figure 4, and the paste 62 is filled between the measuring grids 60, because the edge 61 is a prism , so the contact area between the paste 62 and the surface of the grid 60 can be increased, and the adsorption force of the paste 62 on the surface of the grid 60 can be increased, thereby preventing the paste 62 from falling downward.

以上所述的仅是本发明的实施例,方案中公知的具体结构及特性等常识在此未作过多描述。应当指出,对于本领域的技术人员来说,在不脱离本发明结构的前提下,还可以作出若干变形和改进,这些也应该视为本发明的保护范围,这些都不会影响本发明实施的效果和专利的实用性。本申请要求的保护范围应当以其权利要求的内容为准,说明书中的具体实施方式等记载可以用于解释权利要求的内容。What is described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics known in the scheme are not described here too much. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (5)

1.板栅的挤压成型方法,其特征在于:包括如下步骤:1. the extrusion molding method of grid, it is characterized in that: comprise the steps: (1)将经过压延而成的板材置于工作台上,并启动第一油缸推动压边圈下移,通过压边圈将板材压紧在工作台上;(1) Place the calendered plate on the workbench, start the first oil cylinder to push the blank holder down, and press the plate tightly on the workbench through the bezel; (2)启动第二油缸驱动滑座向下移动,冲压头的过渡段与板材接触时,定位块与冲压头一同向下移动,同时挤压块向上移动,直至冲压头的上段穿过板材并在板材的底面留下翻边,且挤压块与板材底面相抵并将翻边压入挤压槽内时,使第二油缸停止推动滑块向下移动,此时按压按压开关,使电烙铁接通电源;(2) Start the second oil cylinder to drive the sliding seat to move down. When the transition section of the punching head is in contact with the plate, the positioning block and the punching head move down together, and at the same time the extrusion block moves up until the upper section of the punching head passes through the plate and When the flanging is left on the bottom surface of the plate, and the extrusion block is against the bottom surface of the plate and the flanging is pressed into the extrusion groove, the second oil cylinder is stopped to push the slider to move downward, and at this time, press the push switch to make the electric soldering iron Turn on the power; (3)电烙铁加热至328-350℃后,保持温度恒定,待翻边上的铅熔融后,释放按压开关,直至熔融的铅凝固,获得成型后的板栅,再使挤压块下移,并启动第二油缸驱动滑座向上移动,直至冲压头从压边圈的预留孔内退出;(3) After the electric soldering iron is heated to 328-350°C, keep the temperature constant. After the lead on the flange is melted, release the push switch until the molten lead solidifies to obtain a formed grid, and then move the extrusion block down , and start the second oil cylinder to drive the sliding seat to move upward until the stamping head withdraws from the reserved hole of the blank holder; (4)启动第一油缸驱动压边圈向上移动,使压边圈松开板栅,并将板栅从工作台上取下。(4) Start the first oil cylinder to drive the blank holder to move upward, so that the blank holder loosens the grid and removes the grid from the workbench. 2.根据权利要求1所述的板栅的挤压成型方法,其特征在于:所述步骤(2)中,冲压头的过渡段与板材接触后,冲压头向下移动的速度为3-5cm/s。2. The extrusion molding method of the grid according to claim 1, characterized in that: in the step (2), after the transition section of the stamping head is in contact with the plate, the speed at which the stamping head moves downward is 3-5cm /s. 3.根据权利要求2所述的板栅的挤压成型方法,其特征在于:所述步骤(3)中,电烙铁的加热至330℃。3. The grid extrusion molding method according to claim 2, characterized in that: in the step (3), the electric soldering iron is heated to 330°C. 4.根据权利要求3所述的板栅的挤压成型方法,其特征在于:所述步骤(3)中,电烙铁的温度维持在330℃的时间为4-6min。4. The grid extrusion molding method according to claim 3, characterized in that: in the step (3), the temperature of the electric soldering iron is maintained at 330° C. for 4-6 minutes. 5.根据权利要求4所述的板栅的挤压成型方法,其特征在于:所述步骤(3)中,电烙铁的温度降低至150℃以下后,挤压块再向下移动。5 . The grid extrusion molding method according to claim 4 , characterized in that: in the step (3), after the temperature of the electric soldering iron is lowered to below 150° C., the extrusion block moves downward again. 6 .
CN201711461141.3A 2017-12-28 2017-12-28 Extrusion forming method of grid Expired - Fee Related CN108305985B (en)

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JP2001266897A (en) * 2000-03-24 2001-09-28 Shin Kobe Electric Mach Co Ltd Continuous cast grid for lead-acid battery and method of manufacturing the same
WO2008086902A1 (en) * 2007-01-16 2008-07-24 Franz Xaver Mittermaier Method for producing a lattice electrode for a lead storage battery
CN201213146Y (en) * 2008-06-24 2009-03-25 高新峰 Double side plunging stereo grid lead strip
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CN202438612U (en) * 2012-02-20 2012-09-19 福建福模精密技术有限公司 Flanging and once molding punch without scrap generation
CN104218247A (en) * 2014-07-16 2014-12-17 深圳市钧蓝自动化设备有限公司 Electrode plate grid of lead-acid battery, producing mould and preparation method of the electrode plate grid
CN104821402A (en) * 2014-08-15 2015-08-05 骆驼集团襄阳蓄电池有限公司 Lead-acid storage battery plate grid and forming surface treatment method
CN206794516U (en) * 2017-04-21 2017-12-26 吉林东光奥威汽车制动系统有限公司 A kind of diel of punching plates Compound Machining synchronous with flange

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001266897A (en) * 2000-03-24 2001-09-28 Shin Kobe Electric Mach Co Ltd Continuous cast grid for lead-acid battery and method of manufacturing the same
WO2008086902A1 (en) * 2007-01-16 2008-07-24 Franz Xaver Mittermaier Method for producing a lattice electrode for a lead storage battery
EP2124274A1 (en) * 2008-05-21 2009-11-25 Wirtz Manufacturing Co., Inc. Reformed battery grids
CN201213146Y (en) * 2008-06-24 2009-03-25 高新峰 Double side plunging stereo grid lead strip
CN202434638U (en) * 2011-12-09 2012-09-12 深圳市雄韬电源科技股份有限公司 Punching grid of lead-acid storage battery and roll-in shaft
CN202438612U (en) * 2012-02-20 2012-09-19 福建福模精密技术有限公司 Flanging and once molding punch without scrap generation
CN104218247A (en) * 2014-07-16 2014-12-17 深圳市钧蓝自动化设备有限公司 Electrode plate grid of lead-acid battery, producing mould and preparation method of the electrode plate grid
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CN206794516U (en) * 2017-04-21 2017-12-26 吉林东光奥威汽车制动系统有限公司 A kind of diel of punching plates Compound Machining synchronous with flange

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