CN112331929B - Electricity core prepressing mechanism and electricity core winder - Google Patents
Electricity core prepressing mechanism and electricity core winder Download PDFInfo
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- CN112331929B CN112331929B CN202011219223.9A CN202011219223A CN112331929B CN 112331929 B CN112331929 B CN 112331929B CN 202011219223 A CN202011219223 A CN 202011219223A CN 112331929 B CN112331929 B CN 112331929B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0468—Compression means for stacks of electrodes and separators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery cell prepressing mechanism and a battery cell winding machine, and relates to the technical field of lithium batteries. The battery cell prepressing mechanism comprises a rack, a prepressing platform, a mounting bracket, a battery cell pressing plate, a pressing and holding piece, a first driving piece and a second driving piece. The pre-compaction platform mounting is in the frame, and the installing support is connected with the frame, and first driving piece is installed on the installing support, and with press a transmission and be connected, first driving piece is used for driving to press and holds a part pressure of electric core and hold on the pre-compaction platform, and the second driving piece is installed on the installing support, and is connected with electric core clamp plate transmission, and the second driving piece is used for driving electric core clamp plate towards the direction motion that is close to the pre-compaction platform after the unloading presss from both sides the needle and takes out from. The battery cell prepressing mechanism provided by the invention can perform graded prepressing on the battery cell so as to be convenient for drawing out the blanking clamp needle, prevent the battery cell from shifting, avoid wrinkling and even dropping of a pole piece or a diaphragm in the battery cell, and is practical and reliable.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a battery cell pre-pressing mechanism and a battery cell winding machine.
Background
At present, a winding needle mechanism and a cell prepressing mechanism are all important components of a cell winder. After the coiling needle mechanism finishes coiling the electric core, the electric core is taken off from the coiling needle mechanism under the effect of unloading clamp needle to place on the pre-compaction platform of electric core pre-pressing mechanism, utilize the electric core clamp plate of electric core pre-pressing mechanism to carry out pre-compaction shaping to electric core, take out the unloading clamp needle simultaneously. But so, if the pressure of electric core clamp plate to electric core is held the power not enough, and electric core is not compressed tightly, then takes out and drive electric core aversion from unloading clamp needle, influences the subsequent handling, if electric core clamp plate is held the power too big to electric core's pressure, electric core clamp plate presss from both sides the needle with the unloading and compresses tightly in electric core, then takes out and takes out the condition that pole piece or diaphragm in the unloading clamp needle can drive electric core appear wrinkling or even drop, leads to electric core to damage.
In view of this, it is important to design and manufacture a cell pre-pressing mechanism and a cell winding machine, which are convenient for removing the blanking clamp pin, especially in the production of lithium batteries.
Disclosure of Invention
The invention aims to provide a cell prepressing mechanism which can perform graded prepressing on a cell so as to be convenient for taking out a blanking clamp needle, prevent the cell from shifting, avoid wrinkling and even dropping of a pole piece or a diaphragm in the cell, and is practical and reliable.
Another objective of the present invention is to provide a battery cell pre-pressing mechanism in the battery cell winding machine, which can pre-press the battery cell in stages, so as to facilitate the removal of the blanking clamp needle, prevent the battery cell from shifting, avoid wrinkling or even dropping of the pole piece or diaphragm in the battery cell, and is practical and reliable.
The invention is realized by adopting the following technical scheme.
The utility model provides an electricity core prepressing mechanism, which comprises a frame, the pre-compaction platform, the installing support, electric core clamp plate, press and hold the piece, first driving piece and second driving piece, pre-compaction platform mounting is in the frame, the installing support is connected with the frame, first driving piece is installed on the installing support, and hold a transmission with pressing and be connected, first driving piece is used for driving to press and holds the part pressure of electric core and hold on pre-compaction platform, so that the unloading presss from both sides the needle and takes out from electric core, the second driving piece is installed on the installing support, and be connected with electric core clamp plate transmission, the second driving piece is used for taking out at the unloading presss from both sides the needle and drives electric core clamp plate towards the direction motion that is close to pre-compaction platform from back, in order to carry out the pre-compaction shaping to electric core.
Furthermore, the cell pressing plate is provided with a yielding hole, the pressing and holding piece is arranged in the yielding hole, and the pressing and holding piece can extend out of or retract into the yielding hole.
Further, the pressing and holding piece comprises a pressing and holding portion and a connecting portion, the pressing and holding portion is fixedly connected with the connecting portion, the connecting portion is connected with the first driving piece, the pressing and holding portion is in a long strip shape, and one side, far away from the connecting portion, of the pressing and holding portion is provided with a pressing and holding surface used for pressing and holding the battery cell.
Furthermore, the pressing surface is arc-shaped, and a protective layer is coated outside the pressing surface.
Furthermore, the quantity of second driving piece is two, and two second driving pieces all are connected with electric core pressing plate transmission, and first driving piece sets up between two second driving pieces.
Further, the electric core pre-pressing mechanism further comprises a first limiting column, a first limiting hole is formed in the mounting support, and the first limiting column is fixedly connected to the pressing holding piece, extends into the first limiting hole and is in sliding fit with the first limiting hole.
Further, the cell prepressing mechanism further comprises a second limiting post, a second limiting hole is formed in the mounting support, and the second limiting post is fixedly connected to the cell pressing plate, extends into the second limiting hole and is in sliding fit with the second limiting hole.
Furthermore, the cell prepressing mechanism further comprises a third driving piece, the third driving piece is installed on the rack and is in transmission connection with the installation support, the installation support is in sliding connection with the rack, and the third driving piece can drive the installation support to slide relative to the rack along the direction parallel to the cell pressing plate.
Further, electric core pre-pressing mechanism still includes the driving medium, and the driving medium includes lead screw and sleeve, and the third driving piece is connected with the lead screw, outside the lead screw was located to the sleeve cover, and with lead screw threaded connection, sleeve and installing support fixed connection, the axial of lead screw is on a parallel with electric core clamp plate place plane setting.
The utility model provides an electric core winder, including foretell electric core prepressing mechanism, this electric core prepressing mechanism includes the frame, the pre-compaction platform, the installing support, the electric core clamp plate, press and hold the piece, first driving piece and second driving piece, pre-compaction platform mounting is in the frame, the installing support is connected with the frame, first driving piece is installed on the installing support, and with press and hold a transmission and be connected, first driving piece is used for driving to press and holds the part pressure of electric core and hold on the pre-compaction platform, so that the unloading presss from both sides the needle and takes out from electric core, the second driving piece is installed on the installing support, and be connected with electric core clamp plate transmission, the second driving piece is used for driving electric core clamp plate and moves towards the direction that is close to the pre-compaction platform after the unloading presss from both sides the needle and takes out, in order to carry out the pre-compaction shaping to electric core.
The battery cell pre-pressing mechanism and the battery cell winding machine provided by the invention have the following beneficial effects:
the invention provides a cell prepressing mechanism, which is characterized in that a prepressing platform is arranged on a rack, an installation support is connected with the rack, a first driving piece is arranged on the installation support and is in transmission connection with a pressing piece, the first driving piece is used for driving the pressing piece to press a cell on the prepressing platform so as to be convenient for drawing a blanking clamp pin from the cell, a second driving piece is arranged on the installation support and is in transmission connection with a cell pressing plate, the cell pressing plate and the prepressing platform are arranged in parallel at intervals, and the second driving piece is used for driving the cell pressing plate to translate towards the direction close to the prepressing platform after the blanking clamp pin is drawn away so as to prepress and form the cell. Compared with the prior art, the battery cell prepressing mechanism provided by the invention adopts the pressing and holding piece connected with the first driving piece and the battery cell pressing plate connected with the second driving piece, so that the battery cell can be prepressed in a grading manner, the blanking clamp needle can be conveniently taken out, the battery cell is prevented from shifting, and a pole piece or a diaphragm in the battery cell is prevented from wrinkling or even falling off, and the mechanism is practical and reliable.
The electric core winding machine provided by the invention comprises the electric core prepressing mechanism, can perform graded prepressing on the electric core so as to be convenient for drawing out the blanking clamp needle, prevent the electric core from shifting, avoid wrinkling and even falling of a pole piece or a diaphragm in the electric core, and is practical and reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a view angle of a cell pre-pressing mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another view angle of the cell pre-pressing mechanism according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cell pre-pressing mechanism according to an embodiment of the present invention, when a pressing member performs primary pre-pressing on a cell;
fig. 4 is a schematic structural diagram of a cell prepressing mechanism provided in an embodiment of the present invention, in which a pressing member is disposed in a cell pressing plate;
fig. 5 is a schematic structural diagram of a pressing member in a cell prepressing mechanism according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a transmission member in the cell pre-pressing mechanism according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a sliding fit between a mounting bracket and a rack in a cell pre-pressing mechanism according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of the cell pre-pressing mechanism according to the embodiment of the present invention when the blanking clamp pin is pulled away;
fig. 9 is a schematic structural diagram of the cell pre-pressing mechanism according to the embodiment of the present invention when the cell pressing plate performs secondary pre-pressing on the cell.
Icon: 100-cell pre-pressing mechanism; 110-a rack; 111-a guide rail; 120-prepressing the platform; 130-a mounting bracket; 131-a first limiting hole; 132-a second retaining hole; 133-a slider; 140-cell pressing plate; 141-relief holes; 150-a holding member; 151-a pressure holding portion; 152-a connecting portion; 153-pressure holding surface; 160-a first drive member; 170-a second driving member; 180-a first restraint post; 190-a second restraint post; 200-a third driving member; 210-a transmission; 211-lead screw; 212-a sleeve; 220-electric core; 300-blanking clamping pins; 310-external clamp needle; 320-internal clamp needle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides an electric core winding machine (not shown) for winding production electric cores. The electricity core prepressing mechanism in the electricity core prepressing mechanism can be used for conducting grading prepressing on the electricity core, so that the electricity core is convenient to take out from the blanking clamp needle, the condition that the electricity core is shifted is prevented from occurring, pole pieces or diaphragms in the electricity core are prevented from wrinkling or even falling, and the electricity core prepressing mechanism is practical and reliable.
It should be noted that the cell pre-pressing mechanism 100 is applied to a cell winding machine, and the cell winding machine includes a winding pin mechanism (not shown), the cell pre-pressing mechanism 100, and a blanking clamp pin 300. In the working process of the electric core winding machine, firstly, the winding needle mechanism winds the electric core 220; the battery cell 220 is then removed from the winding pin of the winding pin mechanism by using the blanking clamp pin 300 and placed on the battery cell pre-pressing mechanism 100; then, the cell pre-pressing mechanism 100 performs a step pre-pressing on the cell 220 to perform a pre-pressing molding on the cell 220.
Specifically, the cell pre-pressing mechanism 100 can perform two-stage pre-pressing on the cell 220. Firstly, the cell pre-pressing mechanism 100 performs primary pre-pressing on the cell 220; then, the blanking clip needle 300 is pulled out of the battery cell 220, at this time, the pressing and holding force of the battery cell pre-pressing mechanism 100 on the battery cell 220 is moderate, the pulling-out of the blanking clip needle 300 cannot cause the displacement of the battery cell 220, and the wrinkling and even falling of a pole piece or a diaphragm in the battery cell 220 cannot be caused; then, the cell pre-pressing mechanism 100 performs a secondary pre-pressing on the cell 220 to perform pre-pressing molding on the cell 220.
The cell pre-pressing mechanism 100 includes a frame 110, a pre-pressing platform 120, a mounting bracket 130, a cell pressing plate 140, a pressing member 150, a first driving member 160, a second driving member 170, a first limiting post 180, a second limiting post 190, a third driving member 200, and a transmission member 210. The pre-pressing platform 120 is installed on the rack 110, the pre-pressing platform 120 is used for placing the battery cell 220, and the installation support 130 is connected with the rack 110. First driving piece 160 is installed on installing support 130, and is connected with pressing and holding piece 150 transmission, and pressing and holding piece 150 sets up in the top of pre-compaction platform 120, and first driving piece 160 is used for driving pressing and holding piece 150 and presses the part of electric core 220 and hold on pre-compaction platform 120 to realize one-level pre-compaction, thereby be convenient for the unloading clip needle 300 to take out from electric core 220. Second driving piece 170 installs on installing support 130, and is connected with electric core clamp plate 140 transmission, and electric core clamp plate 140 sets up in pre-compaction platform 120's top, and electric core clamp plate 140 sets up with pre-compaction platform 120 parallel interval, and second driving piece 170 is used for taking out after unloading clip needle 300 takes away from to drive electric core clamp plate 140 and make translational motion towards the direction that is close to pre-compaction platform 120 to realize the second grade pre-compaction, thereby carry out the pre-compaction shaping to electric core 220. The first position-limiting column 180 is fixedly connected to the pressing member 150, and the first position-limiting column 180 is configured to slidably engage with the mounting bracket 130 to limit the moving direction of the pressing member 150. The second position-limiting post 190 is fixedly connected to the cell pressing plate 140, and the second position-limiting post 190 is used for sliding fit with the mounting bracket 130 to limit the moving direction of the cell pressing plate 140.
In this embodiment, the mounting bracket 130 is slidably connected to the frame 110, and the mounting bracket 130 can slide relative to the frame 110, so as to yield the pre-pressing platform 120, and facilitate the feeding clip needle 300 to place the battery cell 220 on the pre-pressing platform 120. Specifically, the third driving element 200 is mounted on the frame 110 and is in transmission connection with the mounting bracket 130 through the transmission element 210, and the third driving element 200 can drive the mounting bracket 130 to move, so that the mounting bracket 130 slides relative to the frame 110.
When the battery cell 220 needs to be placed on the pre-pressing platform 120, the third driving member 200 drives the mounting bracket 130 to move through the transmission member 210, so that the pressing member 150 and the battery pressing plate 140 move in the direction away from the pre-pressing platform 120, at this time, the pressing member 150 and the battery pressing plate 140 are no longer arranged above the pre-pressing platform 120, and the feeding clamp pin 300 can conveniently drive the battery cell 220 to be placed on the pre-pressing platform 120. When needing to carry out the pre-compaction shaping to electric core 220, third driving piece 200 drives installing support 130 through driving medium 210 and resets to make pressing hold piece 150 and electric core clamp plate 140 towards the direction motion that is close to pre-compaction platform 120, until electric core clamp plate 140 is located the top of pre-compaction platform 120, and set up with pre-compaction platform 120 parallel interval, press this moment and hold piece 150 and can carry out the one-level pre-compaction to electric core 220, electric core clamp plate 140 can carry out the second grade pre-compaction to electric core 220.
Referring to fig. 4, it is noted that the cell pressing plate 140 is provided with a relief hole 141, the pressing member 150 is disposed in the relief hole 141, the pressing member 150 can extend out of or retract into the relief hole 141, and the relief hole 141 can accommodate and limit the pressing member 150. Specifically, the hole 141 of stepping down sets up in the middle part of electric core clamp plate 140, and the piece 150 is held in the pressure and can stretch out the hole 141 of stepping down to carry out the one-level pre-compaction to electric core 220, and the piece 150 is held in the pressure and also can the retraction hole 141 of stepping down, in order to avoid taking place to interfere with electric core clamp plate 140, and the electric core clamp plate 140 of being convenient for carries out the second grade pre-compaction to electric core 220.
Referring to fig. 5, the pressing member 150 includes a pressing portion 151 and a connecting portion 152. The pressing portion 151 is fixedly connected to the connecting portion 152, and in the embodiment, the pressing portion 151 and the connecting portion 152 are integrally formed to improve the connection strength. The connecting portion 152 is connected to the first driving member 160, and the first driving member 160 can drive the pressing portion 151 to move through the connecting portion 152. The pressing portion 151 is in a long strip shape, one side of the pressing portion 151, which is away from the connecting portion 152, is provided with a pressing surface 153 for pressing the battery cell 220, and the pressing portion 151 can generate pressing force on the middle portion of the battery cell 220 under the driving of the first driving member 160, so as to press the middle portion of the battery cell 220 onto the pre-pressing platform 120.
In this embodiment, the pressing surface 153 is arc-shaped to reduce the frictional resistance between the pressing portion 151 and the battery cell 220, thereby preventing the battery cell 220 from being damaged during the pre-pressing process. The pressing surface 153 is coated with a protective layer (not shown), and the protective layer can protect the battery cell 220 to prevent the battery cell 220 from being damaged during the pre-pressing process. Specifically, the protective layer is made of a polyurethane material, has good stability, chemical resistance, rebound resilience and mechanical properties, has smaller compression deformability and has a good protective effect.
Referring to fig. 2, in the present embodiment, the number of the second driving members 170 is two, two second driving members 170 are both in transmission connection with the cell pressing plate 140, and the first driving member 160 is disposed between the two second driving members 170. Two second driving pieces 170 act together to drive cell pressing plate 140 to be smoothly close to prepressing platform 120, and press and hold cell 220, thereby improving the stability of the prepressing process and ensuring the prepressing effect.
It should be noted that, the mounting bracket 130 is provided with a first limiting hole 131, the first limiting post 180 is fixedly connected to the pressing and holding member 150, and extends into the first limiting hole 131, and is in sliding fit with the first limiting hole 131, the first limiting post 180 can slide relative to the first limiting hole 131, and the first limiting hole 131 can limit the sliding direction of the first limiting post 180, so as to ensure that the pressing and holding member 150 can only slide along the extending direction of the first limiting post 180. Specifically, the first limiting column 180 extends in the vertical direction, so that the pressing member 150 can only slide up and down in the vertical direction.
Further, the mounting bracket 130 is provided with a second limiting hole 132, the second limiting post 190 is fixedly connected to the cell pressing plate 140, extends into the second limiting hole 132, and is in sliding fit with the second limiting hole 132, the second limiting post 190 can slide relative to the second limiting hole 132, the second limiting hole 132 can limit the sliding direction of the second limiting post 190, and the cell pressing plate 140 can only slide along the extending direction of the second limiting post 190. Specifically, the second limiting column 190 extends in the vertical direction, so that the cell pressing plate 140 can only slide up and down in the vertical direction.
In this embodiment, the number of the second limiting posts 190 and the second limiting holes 132 is two, the two second limiting posts 190 are arranged on the cell pressing plate 140 in parallel at intervals, each second limiting post 190 is in sliding fit with one second limiting hole 132, and the first limiting post 180 is arranged between the two second limiting posts 190 to improve the limiting effect.
It should be noted that both the cell pressing plate 140 and the pre-pressing platform 120 are disposed on the horizontal plane, and the third driving member 200 can drive the mounting bracket 130 to slide relative to the rack 110 along a direction parallel to the cell pressing plate 140, that is, the third driving member 200 can drive the mounting bracket 130 to move along the horizontal direction, so as to drive the pressing member 150 and the cell pressing plate 140 to move along the horizontal direction.
Referring to fig. 6, in the present embodiment, the transmission member 210 includes a lead screw 211 and a sleeve 212. The third driving member 200 is connected with the screw 211, the third driving member 200 can drive the screw 211 to rotate, the sleeve 212 is sleeved outside the screw 211 and is in threaded connection with the screw 211, the sleeve 212 is fixedly connected with the mounting bracket 130, and the screw 211 rotates to drive the sleeve 212 to translate along the axial direction of the screw 211 so as to drive the mounting bracket 130 to translate along the axial direction of the screw 211. Specifically, the axial direction of the lead screw 211 is parallel to the plane where the cell pressing plate 140 is located, that is, the lead screw 211 extends along the horizontal direction to drive the mounting bracket 130 to move along the horizontal direction.
Referring to fig. 7, it should be noted that the rack 110 is provided with a guide rail 111, the mounting bracket 130 is provided with a slider 133, the slider 133 is slidably engaged with the guide rail 111, the slider 133 can slide relative to the guide rail 111, and the guide rail 111 can limit the sliding direction of the slider 133, so as to ensure that the slider 133 can only slide along the extending direction of the guide rail 111. Specifically, the extending direction of the guide rail 111 is parallel to the plane where the cell pressing plate 140 is located, and the guide rail 111 and the lead screw 211 are parallel and spaced, that is, the guide rail 111 extends along the horizontal direction, so as to ensure that the mounting bracket 130 moves along the horizontal direction.
In this embodiment, the first driving member 160 and the second driving member 170 are both air cylinders, and the third driving member 200 is an electric motor, but the invention is not limited thereto, and in other embodiments, the first driving member 160 and the second driving member 170 may be both hydraulic cylinders, and the third driving member 200 may be a hydraulic motor or a pneumatic motor, and the types of the first driving member 160, the second driving member 170, and the third driving member 200 are not particularly limited.
Referring to fig. 2, fig. 8 and fig. 9, in the working process of the cell pre-pressing mechanism 100, firstly, the blanking clamp pin 300 is used to drive the cell 220 to be placed on the pre-pressing platform 120; then, the third driving member 200 drives the mounting bracket 130 to slide relative to the frame 110, so that the cell pressing plates 140 are arranged above the pre-pressing platform 120 in parallel at intervals; then the first driving member 160 drives the pressing member 150 to extend out of the abdicating hole 141 so as to press and hold the battery cell 220 on the pre-pressing platform 120, in this process, because the battery cell 220 is cylindrical, and the pressing member 150 presses and holds the middle part of the battery cell 220, the pressing member 150 can press and hold the middle part of the battery cell 220 so as to make the battery cell 220 become 8-shaped, at this time, the two blanking clamp needles 300 are respectively located at two sides of the battery cell 220, the battery cell 220 can not only keep motionless under the action of the pressing member 150, but also can provide sufficient space for the blanking clamp needles 300, so that the blanking clamp needles 300 can be conveniently pulled out without damaging the battery cell 220; then the blanking clip needle 300 is pulled away from the battery cell 220, in this process, because the blanking clip needle 300 includes the outer clip needle 310 and the inner clip needle 320, the outer clip needle 310 is disposed on the outer side of the battery cell 220, and the inner clip needle 320 is disposed on the inner side of the battery cell 220, the outer clip needle 310 and the inner clip needle 320 need to be pulled away after being opened, and the space left out in the battery cell 220 is convenient for displacement of the inner clip needle 320, so that opening of the outer clip needle 310 and the inner clip needle 320 is convenient to achieve; finally, the second driving member 170 drives the cell pressing plate 140 to move toward the direction close to the pre-pressing platform 120, so as to completely flatten the cell 220 on the pre-pressing platform 120, and at this time, the pressing member 150 retracts into the abdicating hole 141, so that interference to the movement of the cell pressing plate 140 is avoided.
In the cell pre-pressing mechanism 100 provided in the embodiment of the present invention, the pre-pressing platform 120 is installed on the rack 110, the installation support 130 is connected to the rack 110, the first driving member 160 is installed on the installation support 130 and is in transmission connection with the pressing member 150, the first driving member 160 is configured to drive the pressing member 150 to press and hold the cell 220 on the pre-pressing platform 120, so as to pull the blanking clip pin 300 away from the cell 220, the second driving member 170 is installed on the installation support 130 and is in transmission connection with the cell pressing plate 140, the cell pressing plate 140 and the pre-pressing platform 120 are arranged in parallel at an interval, and the second driving member 170 is configured to drive the cell pressing plate 140 to translate toward the direction close to the pre-pressing platform 120 after the blanking clip pin 300 is pulled away, so as to pre-press and mold the cell 220. Compared with the prior art, the cell prepressing mechanism 100 provided by the invention adopts the pressing and holding member 150 connected with the first driving member 160 and the cell pressing plate 140 connected with the second driving member 170, so that the cell 220 can be prepressed in a grading manner, the blanking clamp needle 300 can be conveniently pulled away, the cell 220 is prevented from shifting, the pole piece or the diaphragm in the cell 220 is prevented from wrinkling and even falling off, and the cell prepressing mechanism is practical and reliable. The electric core winder has high stability and high yield.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A cell prepressing mechanism is characterized by comprising a rack, a prepressing platform, a mounting bracket, a cell pressing plate, a pressing piece, a first driving piece and a second driving piece, wherein the prepressing platform is mounted on the rack, the mounting bracket is connected with the rack, the first driving piece is mounted on the mounting bracket and is in transmission connection with the pressing piece, the first driving piece is used for driving the pressing piece to press and hold part of a cell on the prepressing platform so as to be convenient for a blanking clamp pin to be drawn out of the cell, the second driving piece is mounted on the mounting bracket and is in transmission connection with the cell pressing plate, the second driving piece is used for driving the cell pressing plate to move towards the direction close to the prepressing platform after the blanking clamp pin is drawn out so as to perform prepressing molding on the cell, and the pressing piece comprises a pressing part and a connecting part, the pressing and holding part is fixedly connected with the connecting part, the connecting part is connected with the first driving part, the pressing and holding part is in a long strip shape, one side of the connecting part, away from the pressing and holding part, is provided with a pressing and holding surface for pressing and holding the battery cell, the pressing and holding surface is in an arc shape, and a protective layer is coated outside the pressing and holding surface.
2. The cell pre-pressing mechanism of claim 1, wherein the cell pressing plate is provided with a hole, the pressing member is disposed in the hole, and the pressing member can extend out of or retract into the hole.
3. The cell pre-pressing mechanism of claim 1, wherein the number of the second driving members is two, the two second driving members are both in transmission connection with the cell pressing plate, and the first driving member is disposed between the two second driving members.
4. The cell pre-pressing mechanism according to claim 1, further comprising a first limiting post, wherein the mounting bracket is provided with a first limiting hole, and the first limiting post is fixedly connected to the pressing member, extends into the first limiting hole, and is in sliding fit with the first limiting hole.
5. The cell pre-pressing mechanism of claim 1, further comprising a second limiting post, wherein the mounting bracket is provided with a second limiting hole, and the second limiting post is fixedly connected to the cell pressing plate, extends into the second limiting hole, and is in sliding fit with the second limiting hole.
6. The cell pre-pressing mechanism according to any one of claims 1 to 5, further comprising a third driving member, the third driving member being mounted on the frame and being in transmission connection with the mounting bracket, the mounting bracket being in sliding connection with the frame, and the third driving member being capable of driving the mounting bracket to slide relative to the frame in a direction parallel to the cell pressing plate.
7. The cell pre-pressing mechanism according to claim 6, further comprising a transmission member, wherein the transmission member includes a lead screw and a sleeve, the third driving member is connected to the lead screw, the sleeve is sleeved outside the lead screw and is in threaded connection with the lead screw, the sleeve is fixedly connected to the mounting bracket, and an axial direction of the lead screw is parallel to a plane where the cell pressing plate is located.
8. An electric core winder, characterized by comprising the electric core pre-pressing mechanism according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011219223.9A CN112331929B (en) | 2020-11-04 | 2020-11-04 | Electricity core prepressing mechanism and electricity core winder |
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| CN202011219223.9A CN112331929B (en) | 2020-11-04 | 2020-11-04 | Electricity core prepressing mechanism and electricity core winder |
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| CN112331929A CN112331929A (en) | 2021-02-05 |
| CN112331929B true CN112331929B (en) | 2022-03-29 |
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| CN112331929A (en) | 2021-02-05 |
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Effective date of registration: 20230323 Address after: 526000 Floor 1, Building B1, Electronic Information Industrial Park, Zhaoqing New Area, Keji 2nd Road, Yong'an Town, Dinghu District, Zhaoqing City, Guangdong Province Patentee after: Zhaoqing Zhaoyang Equipment Technology Co.,Ltd. Address before: 518000 buildings 101-501 and D, building EF, Dejin Industrial Zone, No. 40, Fuyuan 1st Road, Heping community, Fuhai street, Bao'an District, Shenzhen City, Guangdong Province; (business premises are set up in buildings D1 and D2, phase II, Fuqiao 3rd District, Xinhe community, Fuhai street, which are engaged in production and business activities) Patentee before: SHENZHEN GEESUN INTELLIGENT TECHNOLOGY Co.,Ltd. |
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