A kind of electrode of lithium cell processing mold
Technical field
The utility model relates to lithium battery pole slice manufacture field, particularly relates to a kind of electrode of lithium cell processing mold.
Background technology
In recent years, along with the rapid rise of new forms of energy industry, lithium battery also from simple communication, power tool battery gradually to diversification future developments such as power train in vehicle application and energy-storage battery directions, Duo Jia battery enterprise is also emerging rapidly in recent years, is being full of the new forms of energy this emerging industry of challenge with competition, new thinking, new method, at Improving The Quality of Products, reduce costs aspect, play significant role.
Laminated lithium battery electrode machining flow process mainly comprises homogenate, is coated with, rolls, cuts and punching.In the existing production technology of lithium battery pole slice, it is die-cut that pole piece after cutting is completed four limits by punching equipment, is die-cut into required pole piece specification and size, the main waste material using the die-cut removal both sides of mould cutter, then die-cut by cutter, cut off and become required product.Because product can not produce burr in blanking process, so quite high to the requirement of blanking die cutter, but the precision of mould cutter is poor, easily produces deviation time die-cut, thus affects the quality of product.In today that market competition is extremely fierce, if product quality does not pass a test, will seriously restrict the development of enterprise, thus cannot commercially base oneself upon.
The manufacture craft of current domestic high-precision mold is perfect not, and this type of mould leans on external import substantially, and price is very expensive.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of electrode of lithium cell processing mold, this mould is easy to use, precision is high, production cost is low, uses this mould to carry out die-cut to battery pole piece, optimizes pole piece punching technique, substantially increase the precision of pole piece size, thus greatly improve the quality of product.
Concrete technical scheme of the present utility model is: a kind of electrode of lithium cell processing mold, comprises upper die and lower die.
Described patrix comprises top mold frame, supporting plate, upper mold core, main locating hole and auxiliary locating dowel; The lower surface of top mold frame is located at by described supporting plate, described upper mold core is punch and is located at supporting plate lower surface, upper mold core is parallel to each other and be the first upper mold core of strip and the second upper mold core forms by two, the profile of the inner side edge that described first upper mold core is relative with the second upper mold core all with shape adaptation die-cut needed for electrode slice, described main locating hole is located on four angles of top mold frame lower surface, and described auxiliary locating dowel is located at the supporting plate lower surface near the first upper mold core and the second upper mold core.
Described counterdie comprises lower mold holder, lower mold core, backing plate, main locating dowel and auxiliary locating hole; Described lower mold core is two dies and is located at lower mold holder upper surface, the position of described lower mold core corresponds to the position of upper mold core and shape and upper mold core adaptation, described backing plate is located at lower mold holder upper surface and is sandwiched between two dies, backing plate and die contour, described main locating dowel is located at the position and size and main locating hole adaptation that lower mold holder correspond to main locating hole, and described auxiliary locating hole is located at the position and size and auxiliary locating dowel adaptation that lower mold holder correspond to auxiliary locating dowel.
In mould of the present utility model, upper mold core and lower mold core are individually fixed on supporting plate and lower mold holder, and main locating hole, main locating dowel and auxiliary locating hole, auxiliary locating dowel are worked in coordination, and by locked for the position of upper die and lower die, improve the precision of mould.During this mold work; in generation, the part of strip electrode slice of processing entered in mould, and patrix presses down, and upper mold core is thereupon descending and contact with electrode slice; along with the increase of pressure; electrode slice part in compression is punched, and punched part is flushed in the groove of lower mold core by upper mold core, and patrix bounces back; electrode slice continues transmission; the part that electrode slice has completed punching press shifts out mould, and after electrode slice, a part for non-punching press to enter in mould etc. to be punched, completes a punching course to this.
As preferably, the lower surface of described top mold frame is provided with some parallel and be in the deflector roll of same level, described deflector roll can rotating direction and the plane-parallel at the compression face place of the stamping surface of deflector roll place horizontal plane and upper mold core and lower mold core parallel with the direction of the second upper mold core with described first upper mold core.Deflector roll the transmission being conducive on the one hand electrode slice is set, can position electrode slice on the other hand, make the horizontal plane at the electrode slice place in mould parallel with the stamping surface of upper mold core, ensure that accuracy during mould punching.
As preferably, described supporting plate is connected with top mold frame by bolt, is provided with buffer damping between supporting plate and top mold frame.The setting of buffer damping, the pressure that when can avoid punching press, upper mold core presses down too large and cause electrode slice die-cut near part by avulsion.
As preferably, required machined electrode sheet in a mold moving direction and described first upper mold core, the second upper mold core direction is identical.
As preferably, the width of the distance between described first upper mold core and the second upper mold core and required machined electrode sheet is adaptive.
As preferably, the quantity of described main locating hole and main locating dowel is 4, and the quantity of described auxiliary locating hole and auxiliary locating dowel is 6.
Be compared with the prior art, the beneficial effects of the utility model are: this mould is easy to use, and precision is high, production cost is low, uses this mould to carry out die-cut to battery pole piece, optimizes electrode slice punching technique, substantially increase the precision of pole piece size, thus greatly improve the quality of product.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of structural representation of the present utility model;
Fig. 3 is a kind of upper die structure schematic diagram of the present utility model;
Fig. 4 is a kind of lower die structure schematic diagram of the present utility model.
Reference numeral is: patrix 1, counterdie 2, top mold frame 11, supporting plate 12, main locating hole 14, auxiliary locating dowel 15, deflector roll 16, lower mold holder 21, lower mold core 22, backing plate 23, main locating dowel 24, auxiliary locating hole 25, first upper mold core 131, second upper mold core 132.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3, Figure 4: a kind of electrode of lithium cell processing mold, patrix 1 and counterdie 2 is comprised.
Described patrix comprises top mold frame 11, supporting plate 12, upper mold core, 4 main locating holes 14 and 6 auxiliary locating dowels 15; The lower surface of top mold frame is located at by described supporting plate, and described supporting plate is connected with top mold frame by bolt, is provided with buffer damping between supporting plate and top mold frame.Described upper mold core is punch and is located at supporting plate lower surface, upper mold core is parallel to each other and be the first upper mold core 131 of strip and the second upper mold core 132 forms by two, the profile of the inner side edge that described first upper mold core is relative with the second upper mold core all with shape adaptation die-cut needed for electrode slice, described main locating hole is located on four angles of top mold frame lower surface, and described auxiliary locating dowel is located at the supporting plate lower surface near the first upper mold core and the second upper mold core.The lower surface of described top mold frame be provided with 4 parallel and be in the deflector roll 16 of same level, described deflector roll can rotating direction and the plane-parallel at the compression face place of the stamping surface of deflector roll place horizontal plane and upper mold core and lower mold core parallel with the direction of the second upper mold core with described first upper mold core.
Described counterdie comprises lower mold holder 21, lower mold core 22, the main locating dowel 24 of 23,4, backing plate and 6 auxiliary locating holes 25; Described lower mold core is two dies and is located at lower mold holder upper surface, the position of described lower mold core corresponds to the position of upper mold core and shape and upper mold core adaptation, described backing plate is located at lower mold holder upper surface and is sandwiched between two dies, backing plate and die contour, described main locating dowel is located at the position and size and main locating hole adaptation that lower mold holder correspond to main locating hole, and described auxiliary locating hole is located at the position and size and auxiliary locating dowel adaptation that lower mold holder correspond to auxiliary locating dowel.
In the present embodiment, moving direction and described first upper mold core, the second upper mold core direction are identical in a mold for required machined electrode sheet.The width of the distance between described first upper mold core and the second upper mold core and required machined electrode sheet is adaptive.
Embodiment 2
A kind of electrode of lithium cell processing mold, comprises patrix 1 and counterdie 2.
Described patrix comprises top mold frame 11, supporting plate 12, upper mold core, 4 main locating holes 14 and 6 auxiliary locating dowels 15; The lower surface of top mold frame is located at by described supporting plate, described upper mold core is punch and is located at supporting plate lower surface, upper mold core is parallel to each other and be the first upper mold core 131 of strip and the second upper mold core 132 forms by two, the profile of the inner side edge that described first upper mold core is relative with the second upper mold core all with shape adaptation die-cut needed for electrode slice, described main locating hole is located on four angles of top mold frame lower surface, and described auxiliary locating dowel is located at the supporting plate lower surface near the first upper mold core and the second upper mold core.The lower surface of described top mold frame be provided with 4 parallel and be in the deflector roll 16 of same level, described deflector roll can rotating direction and the plane-parallel at the compression face place of the stamping surface of deflector roll place horizontal plane and upper mold core and lower mold core parallel with the direction of the second upper mold core with described first upper mold core.
Described counterdie comprises lower mold holder 21, lower mold core 22, the main locating dowel 24 of 23,4, backing plate and 6 auxiliary locating holes 25; Described lower mold core is two dies and is located at lower mold holder upper surface, the position of described lower mold core corresponds to the position of upper mold core and shape and upper mold core adaptation, described backing plate is located at lower mold holder upper surface and is sandwiched between two dies, backing plate and die contour, described main locating dowel is located at the position and size and main locating hole adaptation that lower mold holder correspond to main locating hole, and described auxiliary locating hole is located at the position and size and auxiliary locating dowel adaptation that lower mold holder correspond to auxiliary locating dowel.
In the present embodiment, moving direction and described first upper mold core, the second upper mold core direction are identical in a mold for required machined electrode sheet.The width of the distance between described first upper mold core and the second upper mold core and required machined electrode sheet is adaptive.
Embodiment 3
A kind of electrode of lithium cell processing mold, comprises patrix 1 and counterdie 2.
Described patrix comprises top mold frame 11, supporting plate 12, upper mold core, 4 main locating holes 14 and 6 auxiliary locating dowels 15; The lower surface of top mold frame is located at by described supporting plate, described upper mold core is punch and is located at supporting plate lower surface, upper mold core is parallel to each other and be the first upper mold core 131 of strip and the second upper mold core 132 forms by two, the profile of the inner side edge that described first upper mold core is relative with the second upper mold core all with shape adaptation die-cut needed for electrode slice, described main locating hole is located on four angles of top mold frame lower surface, and described auxiliary locating dowel is located at the supporting plate lower surface near the first upper mold core and the second upper mold core.
Described counterdie comprises lower mold holder 21, lower mold core 22, the main locating dowel 24 of 23,4, backing plate and 6 auxiliary locating holes 25; Described lower mold core is two dies and is located at lower mold holder upper surface, the position of described lower mold core corresponds to the position of upper mold core and shape and upper mold core adaptation, described backing plate is located at lower mold holder upper surface and is sandwiched between two dies, backing plate and die contour, described main locating dowel is located at the position and size and main locating hole adaptation that lower mold holder correspond to main locating hole, and described auxiliary locating hole is located at the position and size and auxiliary locating dowel adaptation that lower mold holder correspond to auxiliary locating dowel.
In the present embodiment, moving direction and described first upper mold core, the second upper mold core direction are identical in a mold for required machined electrode sheet.The width of the distance between described first upper mold core and the second upper mold core and required machined electrode sheet is adaptive.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong to the protection domain of technical solutions of the utility model.