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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CN
China
Prior art keywords
grid
staking punch
plank
blank holder
crushing block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711461141.3A
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Chinese (zh)
Other versions
CN108305985B (en
Inventor
何幸华
李政文
黎少伟
何可立
马俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Zhuoyue Power New Energy Co Ltd
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Guangzhou Zhuoyue Power New Energy Co Ltd
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Priority to CN201711461141.3A priority Critical patent/CN108305985B/en
Publication of CN108305985A publication Critical patent/CN108305985A/en
Application granted granted Critical
Publication of CN108305985B publication Critical patent/CN108305985B/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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

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

The extrusion process of grid
Technical field
The present invention relates to battery processing technique fields, and in particular to a kind of extrusion process of grid.
Background technology
It is and cheap because the performance of lead-acid battery is stablized, be widely used in always for many years the energy, communication, electric power, The fields such as traffic and military affairs.But since the gravimetric specific energy of lead-acid battery is relatively low, to limit it in certain technical fields Application, such as electric vehicle.
Lead-acid battery has higher gravimetric specific energy, but the grid of the grid used in current lead-acid battery is smaller and close Collection, consumption of lead is big, cannot effectively coat active material, to limit the raising of its gravimetric specific energy.In order to reduce use Lead amount is currently suggested a kind of fibre reinforced metal grid.Current fibre reinforced metal grid is by following steps It is process, (1) carbon cloth high temperature degumming:Carbon cloth is made of unidirectional long carbon fiber and epoxy resin, by carbon cloth It is placed in hot environment and toasts, remove epoxy resin;(2) impregnated carbon fiber:In anhydrous and inert gas shielding, passing through the (1) carbon cloth of step degumming immerses in sodium-potassium-sodium alloy of liquid, then pulls out carbon cloth;(3) hot extrusion molding:Carbon Fiber cloth is quenched, and be crushed to plank after (2) step dipping together with lead under high temperature, high pressure or metal liquid;(4) Calendering:The plank that (3) step is extruded from is rolled;(5) punching:Plate stamping portals made of rolling by (4) step.
Although above method can reduce consumption of lead, and increase grid, due to needing coated cream between grid and grid Body, when grid is in vertical state, only grid has supporting role to lotion, and since grid both sides are plane, i.e., The contact area of grid and lotion is small, therefore the case where sliding downwards usually occurs in the lotion between two grids, to make lotion It is gathered in battery bottom so that the reserve of electricity of battery reduces.
Invention content
It, can be with when being punched out to plank the purpose of the present invention is to provide a kind of extrusion process of grid The side of grid squeezes out prismatic side, to increase the contact area of lotion and grid side.
In order to achieve the above objectives, base case of the invention is as follows:
The extrusion process of grid includes the following steps:
(1) plank is placed on workbench made of passing through calendering, and is started the first oil cylinder pushing blank holder and moved down, and is passed through Blank holder by plate compact on the table;
(2) start the second hydraulic oil cylinder driving slide to move down, when the changeover portion and web contact of staking punch, locating piece and punching Pressure head moves down together, while crushing block moves up, until the epimere of staking punch passes through plank and stayed in the bottom surface of plank Lower flange, and crushing block and plank bottom surface offset and be pressed into flange when squeezing in slot, make the second oil cylinder stop pushing sliding block to Lower movement, presses at this time by compressing switch, electric iron is made to power on;
(3) after electric iron is heated to 328-350 DEG C, keep temperature constant, after the lead melting on flange, release is by pressing off Close, until melting lead solidification, obtain grid after molding, then crushing block is made to move down, and start the second hydraulic oil cylinder driving slide to Upper movement, until staking punch is exited out of blank holder preformed hole;
(4) start the first hydraulic oil cylinder driving blank holder to move up, so that blank holder is unclamped grid, and by grid from workbench It removes.
The principle of the extrusion process of this programme grid is:
The extrusion process of the above grid is carried out using a kind of grid extrusion equipment;The grid extrusion equipment includes seat Body, the workbench being fixedly connected on pedestal, blank holder and pressing part above workbench, and below workbench Seamed edge forming part.Blank holder is set between workbench and pressing part, and is connect with blank holder equipped with the first oil cylinder, so that first Oil cylinder can drive blank holder to move up and down.Pressing part includes the second oil cylinder, slide and the staking punch for being fixed on slide bottom surface, punching press Head includes epimere and hypomere, and the sectional area of hypomere is less than the sectional area of epimere, and the transition of taper is equipped between epimere and hypomere Section, blank holder are equipped with preformed hole, and staking punch can stretch into preformed hole;Second oil cylinder is connect with slide, so that the second oil cylinder energy The slide of driving moves up and down.Seamed edge forming part includes fixed seat, and extruding axis is slidably connected in fixed seat, and squeezing axis can be along perpendicular Histogram squeezes that axis is opposite with staking punch to sliding up and down, and squeezes the compression spring for setting below axis and offseting with extruding axis;In fixed seat Equipped with the first oil pocket and the second oil pocket, the first oil pocket is located at the periphery for squeezing axis, and the second oil pocket is located at the first oil pocket periphery, and first The bottom of oil pocket and the second oil pocket is connected to, and the piston being fixedly connected with extruding axis is equipped in the first oil pocket.It is set in second oil pocket There is the crushing block for blocking the second oil pocket upper end, and is equipped with the locating piece for blocking the first oil pocket upper end in the first oil pocket.It squeezes The top of block is equipped with the extruding slot that cross section is triangle, and crushing block upper end is internally provided with electric iron, squeezes the lower section of axis Equipped with being electrically connected with electric iron by compressing switch.It is equipped with closed air cavity in crushing block and can determine from what the side of crushing block skidded off Position pin, one end of positioning pin are stretched into air cavity, and fixed seat is equipped with the location hole that can coordinate with the positioning pin other end, is set in air cavity Have with positioning pin connection resetting spring, and crushing block in contacted with electric iron equipped with one end, the other end with stretch into air cavity Thermally conductive sheet.
In step (1), on the one hand plank can be compressed by blank holder, on the other hand, when being punched out to plank, Blank holder can be to avoid plank flexural deformation.
In step (2), when the hypomere of staking punch presses to plank, locating piece has supporting role to the bottom surface of plank, The pressure for preventing staking punch from applying to plank, makes plank to lower recess.It will additionally by the hypomere and locating piece cooperation of staking punch Shearing force is formed to plank, the part to be in contact with staking punch hypomere bottom surface will be cut off from plank.With punching press Head continues to move down, when the changeover portion of staking punch enters in punching hole, since the section of changeover portion gradually increases, Changeover portion has tearing effect to the material around staking punch;And after staking punch changeover portion and web contact, locating piece will be with Staking punch moves down together, to which locating piece no longer has supporting role to plank, therefore, as changeover portion deepens continuously punching When pressing in hole, the material being torn will form flange in the bottom surface of plank.While locating piece moves down, crushing block is upward It is mobile, and after the epimere of staking punch passes through plank, the top of crushing block will offset with plank, to which plank is clamped at flanging Between circle and crushing block, and flange is compressed in and squeezes in slot.
When executing step (2), specific process is grid extrusion equipment, fixed when the hypomere and web contact of staking punch Position block always plays a supporting role to plank;When the changeover portion of staking punch and web contact, the bottom surface of staking punch hypomere with squeeze The top of last item contacts, to drive extruding axis to move down together.First oil pocket and the second oil pocket are filled with hydraulic oil, and set It is fixedly connected in the piston in the first oil pocket with axis is squeezed, therefore piston moves down together with axis is squeezed, then in the first oil pocket Space above piston gradually increases so that locating piece moves down;And the space below the first oil pocket inner carrier is gradually reduced so that Hydraulic oil in first oil pocket is extruded into the second oil pocket, then crushing block will move up, when squeezing axis and pressing below Compress switch contact when, by compress switch open so that electric iron powers on.
The flange formed in step (2), which is compressed to, to be squeezed in slot, and electric iron has connected power supply.In step (3), electricity The temperature of soldering iron will be conducted to the side wall for squeezing slot, when electric iron is after being increased to 328 DEG C, squeeze the temperature of the side wall of slot Will raise to 328 DEG C, the temperature be lead fusing point, therefore keep the temperature for a period of time after, lead will be in molten condition.Release is pressed It compresses switch, stopping continues to heat to electric iron, and lead will solidify and be shaped to squeeze the shape of slot after temperature reduces, and melt with grid It closes.
When executing step (3), specific process is grid extrusion equipment:Since electric iron is contacted with thermally conductive sheet, electricity irons The temperature of iron will be conducted to air cavity, and the temperature raising in air cavity increases the pressure made in air cavity, to the gas in air cavity The pressure acted on positioning pin increases, therefore positioning pin is protruding and coordinates with location hole, to make crushing block and fixation Seat is in stationary state.After staking punch moves up, squeezes axis and also moved up under the action of compression spring, released by compressing switch It puts, and the temperature in air cavity is still higher at this time, therefore positioning pin will not retract at once.It is gradually dropped with the temperature of electric iron Low, squeezing the temperature of the gentle intracavitary of slot will also continuously decrease, then the lead after melting will gradually solidify;Temperature is reduced to certain value Afterwards, lead is up to the hardness for being not easy to be destroyed, while the pressure in air cavity will also decrease, then positioning pin is retracted, positioning pin with it is fixed Position hole is detached from cooperation, then crushing block moves down.
In step (4), by making blank holder move up, then blank holder can be made to unclamp grid, so as to by grid from work It is removed on platform.
This programme generate advantageous effect be:
(1) in step (3), by being punched out to grid, can flange be formed around punching hole simultaneously, then Flange can be squeezed by prismatic by crushing block again, so as to so that lotion and the contact area of grid side increase.
(2) in step (4), the seamed edge of extrusion forming can be heated and is melted by electric iron heat conduction, then cooled down again Molding, to make seamed edge combine together with grid, can be improved edge stability.
Preferred embodiment one:Advanced optimized as to base case, in the step (2), the changeover portion of staking punch with After web contact, the speed that staking punch moves down is 3-5cm/s.After changeover portion and web contact, positioning BOB(beginning of block) is downward Mobile, to which locating piece no longer has supporting role to the edge of punching hole, slowing down the movement speed of staking punch at this time can keep away Exempt from that the impact force that the edge of punching hole is subject to is excessive, and the plank for being conducive to punching hole edge is equably torn, and makes each side of punching hole Flange of the same size is formed along place.
Preferred embodiment two:As advanced optimizing to preferred embodiment one, in the step (3), electric iron is heated to 330℃;The temperature of electric iron is excessively high, the lead after melting it is more liquid, flow downward main concentration to be easy to cause lead In the lower part of seamed edge;In addition, the temperature of fusion of lead is excessively high, then the time of lead cooled and solidified will extension.
Preferred embodiment three:As advanced optimizing to preferred embodiment two, in the step (3), the temperature of electric iron is tieed up It is 4-6min to hold in 330 DEG C of time.Heating time is too short will to cause lead not melt completely, and the heating time of lead is long, Lead after melting will generate certain flowing, is detached from from carbon fiber surface to be easy to cause part lead.
Preferred embodiment four:As advanced optimizing to preferred embodiment three, in the step (3), the temperature of electric iron drops Down to after 150 DEG C or less, crushing block moves still further below.When the temperature of electric iron will decrease to 150 DEG C or less, the lead after solidification Temperature will also decrease to 150 DEG C hereinafter, the surface of lead reaches higher hardness at this time, can avoid in removal grid, due to Collision causes seamed edge to deform.After the temperature of electric iron is reduced to 150 DEG C or less, the temperature in air cavity will also decrease to 150 DEG C Hereinafter, to make the pressure in air cavity reduce, then positioning pin is retracted and is detached from location hole and coordinated.Positioning pin is detached from location hole The temperature of cooperation is determined by the original pressure of air cavity, therefore by adjusting the original pressure in air cavity, positioning pin can be changed and determine Position hole is detached from the temperature of cooperation.
Description of the drawings
Fig. 1 is structural schematic diagram when grid extrusion equipment does not stamp out punching hole;
Fig. 2 is structural schematic diagram when grid extrusion equipment has stamped out punching hole;
Fig. 3 is the enlarged drawing of part A in Fig. 1;
Fig. 4 is the mutually matched schematic diagram of two grids.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail:
Reference numeral in Figure of description includes:Blank holder 10, preformed hole 11, staking punch 20, fixed seat 30, by pressing off The 31, second oil pocket 32 is closed, axis 33 is squeezed, piston 34, compression spring 35, crushing block 36, locating piece 37, the first oil pocket 38, air cavity 41, determines Position pin 42, location hole 44, heat-conducting block 45, squeezes slot 46, electric iron 47, plank 50, flange 51, grid 60, rib at resetting spring 43 Side 61, lotion 62.
The extrusion process of the grid 60 of the present embodiment is carried out using a kind of 60 extrusion equipment of grid.As shown in Figure 1, Figure 2 and Fig. 3,60 extrusion equipment of grid include pressing part, 61 forming part of blank holder 10, workbench and seamed edge successively from top to bottom;And it also wraps Pedestal is included, workbench is fixed on pedestal, and organic frame is installed on pedestal, and pressing part and blank holder 10 are installed in rack.Pressure Flange 10 is connect with housing slide, and blank holder 10 only can be slided vertically, and is connected equipped with the first oil cylinder and blank holder 10 It connects, to drive blank holder 10 to move up and down.Pressing part includes the second oil cylinder, slide and the staking punch 20 for being fixed on slide bottom; Slide is slidably connected in rack, and slide is only capable of vertically sliding, and the second oil cylinder is connect with slide, to pass through second Oil cylinder can drive slide to slide up and down.Staking punch 20 includes epimere and hypomere, and the section of epimere and hypomere is in regular quadrangle, under The sectional area of section is less than the sectional area of epimere, and the changeover portion of pyramid is equipped between epimere and hypomere.Blank holder 10 is equipped with pre- Box out 11, staking punch 20 can stretch into preformed hole 11;Blank holder 10 can compress plank 50 on the table, then under staking punch 20 Plank 50 can be punched out by moving and stretching into preformed hole 11.
61 forming part of seamed edge include with the fixed fixed seat 30 of pedestal, the middle part of fixed seat 30 slidably connects extruding axis 33, squeezing axis 33 can vertically slide up and down, and squeeze axis 33 and staking punch 20 is opposite, the lower section for squeezing axis 33 sets and squeezes The compression spring 35 that axis 33 offsets can overcome the elastic force of compression spring 35 when staking punch 20 moves down and offsets with extruding axis 33, to Extruding axis 33 is set to move down;And when extruding axis 33 moves up, under the action of 35 elastic force of compression spring, squeezing axis 33 will be upward It is mobile.It is equipped with the first oil pocket 38 and the second oil pocket 32 in fixed seat 30, the first oil pocket 38 is looped around the periphery for squeezing axis 33, and second Oil pocket 32 is looped around 38 periphery of the first oil pocket, and the top of the first oil pocket 38 and the second oil pocket 32 is set on the upper surface of fixed seat 30 There is opening.Be equipped in first oil pocket 38 can vertical sliding locating piece 37, locating piece 37 from the opening at 38 top of the first oil pocket to Upper stretching;Be equipped in second oil pocket 32 can vertical sliding 61 crushing block 36 of seamed edge, 61 crushing block 36 of seamed edge is from the second oil pocket 32 The opening upwards of upper end stretch out.First oil pocket 38 is connected to the bottom of the second oil pocket 32, and is equipped with and extruding in the first oil pocket 38 Fill up hydraulic oil in the piston 34 that axis 33 is fixedly connected, the first oil pocket 38 and the second oil pocket 32, when piston 34 with squeeze axis 33 to When lower slider, the hydraulic oil in the first oil pocket 38 is squeezed into the second oil pocket 32 by piston 34, then 61 crushing block 36 of seamed edge is upward It is mobile, and locating piece 37 moves down.The top of 61 crushing block 36 of seamed edge is equipped with the extruding slot 46 that cross section is triangle, and rib 61 crushing block of side, 36 upper end is internally provided with electric iron 47, squeeze axis 33 lower section be equipped be electrically connected with electric iron 47 by pressing off Close 31, by compress switch 31 be squeezed when, electric iron 47 powers on.61 crushing block of seamed edge, 36 bottom is equipped with closed air cavity 41 And the positioning pin 42 that can be skidded off from the side of 61 crushing block 36 of seamed edge, one end of positioning pin 42 are stretched into air cavity 41, fixed seat 30 It is equipped with the location hole 44 that can coordinate with 42 other end of positioning pin, the resetting spring being connect with positioning pin 42 is equipped in air cavity 41 43, and it is equipped with thermally conductive sheet in 61 crushing block 36 of seamed edge, one end of thermally conductive sheet is contacted with electric iron 47, the thermally conductive sheet other end stretches into gas In chamber 41.When 47 temperature of electric iron increases, when the temperature in air cavity 41 increases, the pressure in air cavity 41 will increase, so as to Positioning pin 42 is set to stretch out.Adjust the original pressure of air cavity 41, i.e., the pressure of air cavity 41 when the temperature inside air cavity 41 is room temperature, then Changeable position of the positioning pin 42 in reset condition, the then temperature of air cavity 41 when positioning pin 42 is detached from cooperation with location hole 44 It is different.
60 extrusion equipment of grid operation process be:Plank 50 is positioned and plank 50 is compressed by work by blank holder 10 On platform;And staking punch 20 is made to move down, when the hypomere of staking punch 20 is contacted with plank 50, locating piece 37 is always to plank 50 It plays a supporting role, under the shear action of pressing block and locating piece 37, punching hole will be formed on plank 50.When staking punch 20 Changeover portion and plank 50 when contacting, the bottom surface of 20 hypomere of staking punch is contacted with the top of extruding axis 33, to drive extruding axis 33 move down together.Piston 34 moves down together with axis 33 is squeezed, then the space of the top of 38 inner carrier of the first oil pocket 34 by It is cumulative big so that locating piece 37 moves down;And the space of 38 inner carrier of the first oil pocket, 34 lower section is gradually reduced so that the first oil pocket 38 Interior hydraulic oil is extruded into the second oil pocket 32, then 61 crushing block 36 of seamed edge will move up, locating piece 37 to plank 50 not There is supporting role again, when deepening continuously in punching hole with changeover portion, the material being torn will be formed in the bottom surface of plank 50 Flange 51.61 crushing block 36 of seamed edge is moved up and is offseted with plank 50, to which plank 50 is clamped at blank holder 10 and seamed edge Between 61 crushing blocks 36, and flange 51 is compressed in and squeezes in slot 46.
When squeeze axis 33 with below by compress switch 31 contact when, by 31 openings that compress switch so that electric iron 47 is connected Power supply.The temperature of electric iron 47 will be conducted to air cavity 41, and the temperature raising in air cavity 41 increases the pressure made in air cavity 41, Positioning pin 42 is protruding and coordinates with location hole 44, and it is in stationary state to make 61 crushing block 36 of seamed edge and fixed seat 30.Work as punching press After first 20 move up, squeezes axis 33 and also moved up under the action of compression spring 35,31 is released by compressing switch, due to air cavity 41 Interior temperature is still higher, therefore positioning pin 42 will not retract at once.As the temperature of electric iron 47 continuously decreases, slot 46 is squeezed It will also be continuously decreased with the temperature in air cavity 41, then the lead after melting will gradually solidify;After temperature is reduced to certain value, positioning pin 42 are detached from cooperation with location hole 44, then 61 crushing block 36 of seamed edge moves down.When electric iron 47 is after being increased to 328 DEG C, squeeze The temperature of the side wall of slot 46 also will raise to 328 DEG C, keep the temperature for a period of time after, lead will be in molten condition.Release pressing Switch 31, stopping electric iron 47 is continued to heat, as temperature reduces, lead will solidify and be shaped to squeeze slot 46 shape and with Grid 60 merges.
The extrusion process of grid 60 includes the following steps:
(1) plank 50 is placed on workbench made of passing through calendering, and is started the first oil cylinder pushing blank holder 10 and moved down, Plank 50 is compressed on the table by blank holder 10;And the initial gas pressure in air cavity 41 is adjusted, make positioning pin 42 and positioning In the engagement condition, the temperature in air cavity 41 after high temperature is reduced to 150 DEG C, with the disengaging of location hole 44 match by positioning pin 42 in hole 44 It closes.
(2) start the second hydraulic oil cylinder driving slide to move down, and staking punch 20 is made to pass through the preset hole on blank holder 10, punching When the hypomere of pressure head 20 is contacted with plank 50, the speed that staking punch 20 moves down is 30cm/s, the hypomere and mistake of staking punch 20 When crossing section and plank 50 and contacting, the speed that staking punch 20 moves down is 5cm/s;The bottom of 20 hypomere of staking punch and extruding axis 33 Top contact after, continue to move down staking punch 20, until squeezing the bottom pressing of axis 33 by compressing switch 31.
(3) it after electric iron 47 is heated to 330 DEG C, keeps temperature constant, and makes 33 Continued depression of extruding axis by compressing switch 31 After six minutes, staking punch 20 is moved up, with release by compressing switch 31;After temperature in air cavity 41 is reduced to 150 DEG C, positioning pin 42 are detached from cooperation with location hole 44, while 61 crushing block 36 of seamed edge moves down, and obtain grid 60 after molding;Start second Hydraulic oil cylinder driving slide moves up, until staking punch 20 is exited out of blank holder 10 preformed hole 11.
(4) start the first hydraulic oil cylinder driving blank holder 10 move up, make blank holder 10 unclamp grid 60, and by grid 60 from It is removed on workbench.
As shown in figure 4,60 be the grid 60 obtained by above method, two grids 60 are arranged by way of in Fig. 4, and It is filled with lotion 62 between template grid 60, since seamed edge 61 is prismatic, connecing for lotion 62 and 60 surface of grid can be increased Contacting surface accumulate, increase lotion 62 60 surface of grid adsorption capacity, to avoid lotion 62 from falling downwards.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification The records such as specific implementation mode can be used for explaining the content of claim.

Claims (5)

1. the extrusion process of grid, it is characterised in that:Include the following steps:
(1) plank is placed on workbench made of passing through calendering, and is started the first oil cylinder pushing blank holder and moved down, and flanging is passed through It encloses plate compact on the table;
(2) start the second hydraulic oil cylinder driving slide to move down, when the changeover portion and web contact of staking punch, locating piece and staking punch It moves down, while crushing block moves up, is turned over until the epimere of staking punch passes through plank and left in the bottom surface of plank together Side, and crushing block and plank bottom surface offset and be pressed into flange when squeezing in slot makes the second oil cylinder stop pushing sliding block to moving down It is dynamic, it is pressed at this time by compressing switch, electric iron is made to power on;
(3) after electric iron is heated to 328-350 DEG C, keep temperature constant, after the lead melting on flange, release by compressing switch, Until the lead solidification of melting, obtains grid after molding, then crushing block is made to move down, and start the second hydraulic oil cylinder driving slide to moving up It is dynamic, until staking punch is exited out of blank holder preformed hole;
(4) start the first hydraulic oil cylinder driving blank holder to move up, so that blank holder is unclamped grid, and grid is taken from workbench Under.
2. the extrusion process of grid according to claim 1, it is characterised in that:In the step (2), staking punch Changeover portion is 3-5cm/s with the speed that after web contact, staking punch moves down.
3. the extrusion process of grid according to claim 2, it is characterised in that:In the step (3), electric iron It is heated to 330 DEG C.
4. the extrusion process of grid according to claim 3, it is characterised in that:In the step (3), electric iron The time that temperature maintains 330 DEG C is 4-6min.
5. the extrusion process of grid according to claim 4, it is characterised in that:In the step (3), electric iron After temperature is reduced to 150 DEG C or less, crushing block moves still further below.
CN201711461141.3A 2017-12-28 2017-12-28 Extrusion forming method of grid Active CN108305985B (en)

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