CN216213656U - Electricity core coiling direction pan feeding device and winder - Google Patents
Electricity core coiling direction pan feeding device and winder Download PDFInfo
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- CN216213656U CN216213656U CN202122558261.3U CN202122558261U CN216213656U CN 216213656 U CN216213656 U CN 216213656U CN 202122558261 U CN202122558261 U CN 202122558261U CN 216213656 U CN216213656 U CN 216213656U
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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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Abstract
The utility model provides a battery cell winding guiding feeding device and a winding machine, and relates to the technical field of battery manufacturing. Simultaneously, through the negative pole direction piece that adopts the activity to set up for the tip of negative pole direction piece is in the active state, and adjusts along with the increase of electricity core diameter, guarantees throughout to be tangent with the income book point of negative pole piece, has avoided the scratch negative pole utmost point ear. Compared with the prior art, the battery cell winding guiding feeding device provided by the utility model can avoid scratching the electrode lugs during guiding and smoothing, and ensures the quality of battery cell winding.
Description
Technical Field
The utility model relates to the technical field of battery manufacturing, in particular to a battery cell winding guiding feeding device and a winding machine.
Background
At present, in the production process of the power lithium battery, positive and negative pole pieces and an isolating film are mainly wound by a winding machine to form a battery cell, and the battery cell is likely to have the phenomenon of lug folding before entering a winding needle for winding, so that the winding effect of the battery cell is influenced.
Further, a tab guiding flattening mechanism appears, which can ensure that tabs on the pole piece can be rolled onto a rolling needle in a free state without being folded, and ensure the quality of a wound battery cell. However, the inventor researches and discovers that the tab guiding mechanism of the existing winding machine can only be made into a fixed type, the battery cell becomes large in the winding process, and the tab is scratched by the guiding sheet due to the change of the pole piece material line, so that the winding quality of the battery cell is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery cell winding guide feeding device and a winding machine, which can avoid scratching a tab during guide flattening and ensure the winding quality of a battery cell.
The embodiment of the utility model is realized by the following steps:
in a first aspect, the utility model provides a cell winding guiding and feeding device, which comprises an anode feeding roller, a cathode feeding roller, an anode guide sheet, a cathode guide sheet and a winding needle, wherein the anode feeding roller is arranged at an interval with the winding needle and used for conveying an anode sheet to the winding needle, the cathode feeding roller is arranged at an interval with the winding needle and used for conveying a cathode sheet to the winding needle, and the winding needle is used for winding the anode sheet and the cathode sheet and forming a cell;
the positive electrode guide sheet is arranged at a positive electrode sheet feeding position of the winding needle and used for guiding the positive electrode sheet and smoothing a positive electrode tab on the positive electrode sheet, and the end part of the positive electrode guide sheet can be close to or far away from the winding needle and is tangent to a winding point of the positive electrode sheet;
the negative pole direction piece sets up roll up negative pole piece pan feeding department of needle, be used for right the negative pole piece leads, and right negative pole utmost point ear on the negative pole piece smooths, just the tip of negative pole direction piece can be close to or keep away from roll up the needle, and be used for with the income of negative pole piece is rolled up some tangently.
In an optional embodiment, the cell winding and guiding feeding device further includes a mounting plate, the positive electrode feeding roller, the negative electrode feeding roller and the winding needle are arranged on the mounting plate at intervals in pairs, and the positive electrode guide sheet is arranged on the mounting plate and can rotate relative to the mounting plate to drive the end of the positive electrode guide sheet to approach or leave the winding needle; the negative pole guide piece is movably arranged on the mounting plate and can move linearly and reciprocally relative to the mounting plate so as to drive the end part of the negative pole guide piece to be close to or far away from the winding needle.
In an optional implementation mode, one end of the positive pole guide sheet is provided with a positive pole driving piece, the other end of the positive pole guide sheet is used for being tangent to a rolling point of the positive pole sheet, and the positive pole driving piece is connected to the mounting plate and used for driving the positive pole guide sheet to rotate so that the other end of the positive pole guide sheet is close to or far away from the rolling needle.
In an optional implementation mode, one end of the negative electrode guide piece is provided with a bearing frame, a negative electrode driving piece is arranged on the bearing frame, the other end of the negative electrode guide piece is used for being tangent to a winding point of the negative electrode piece, and the negative electrode driving piece is connected to the mounting plate and used for driving the bearing frame and the negative electrode guide piece to do linear reciprocating motion so that the other end of the negative electrode guide piece is close to or far away from the winding needle.
In an optional implementation manner, the bearing frame is further provided with a link mechanism, one end of the negative electrode guide piece is hinged to the bearing frame, and the link mechanism is connected with the negative electrode guide piece and used for adjusting an included angle between the negative electrode guide piece and the bearing frame.
In an optional embodiment, the link mechanism includes an adjusting cylinder, one end of the adjusting cylinder is hinged to the negative electrode guide plate, and the other end of the adjusting cylinder is connected to the bearing frame, so as to drive the negative electrode guide plate to rotate relative to the bearing frame.
In optional embodiment, still be provided with anodal piece of blowing on the mounting panel, anodal piece of blowing with anodal guide plate sets up relatively, and with anodal guide plate forms the confession the anodal passageway of blowing that anodal piece passed, anodal piece of blowing is used for the orientation anodal guide plate blows to prevent the anodal utmost point ear of anodal piece turns over and turns over.
In an optional implementation manner, a negative electrode blowing piece is further arranged on the mounting plate, the negative electrode blowing piece is arranged opposite to the negative electrode guide sheet and forms a negative electrode blowing channel for the negative electrode sheet to pass through, and the negative electrode blowing piece is used for blowing air towards the negative electrode guide sheet so as to prevent the negative electrode tab of the negative electrode sheet from being folded.
In an alternative embodiment, the surface of the positive electrode guide sheet on one side for contacting with the positive electrode sheet is coated with a positive electrode insulating layer; and a negative electrode insulating layer is coated on the surface of one side of the negative electrode guide plate, which is in contact with the negative electrode plate.
In a second aspect, the present invention provides a winding machine, including a positive pole unwinding mechanism, a negative pole unwinding mechanism, and the cell winding guiding and feeding device according to any one of the foregoing embodiments, where the positive pole unwinding mechanism is disposed upstream of the positive pole feeding roller and is configured to provide a positive pole piece, and the negative pole unwinding mechanism is disposed upstream of the negative pole feeding roller and is configured to provide a negative pole piece.
The embodiment of the utility model has the beneficial effects that:
the utility model provides a battery cell winding guide feeding device, which is characterized in that a positive electrode guide sheet is movably arranged at a positive electrode sheet feeding position of a winding needle and used for guiding a positive electrode sheet and smoothing a positive electrode tab on the positive electrode sheet, the end part of the positive electrode guide sheet can be close to or far away from the winding needle and is tangent to a winding point of the positive electrode sheet, the end part of the positive electrode guide sheet is in a movable state by adopting the movably arranged positive electrode guide sheet, and the positive electrode guide sheet is adjusted along with the increase of the diameter of a battery cell, so that the tangent to the winding point of the positive electrode sheet is always ensured, and the positive electrode tab is prevented from being scratched. Simultaneously, through setting up the negative pole direction piece activity in the negative pole piece pan feeding department of rolling up the needle, be used for leading to the negative pole piece, and smooth the negative pole utmost point ear on the negative pole piece, and the tip of negative pole direction piece can be close to or keep away from a roll needle, and be used for rolling up some tangents with the income of negative pole piece, through adopting the negative pole direction piece that the activity set up, make the tip of negative pole direction piece be in the active state, and adjust along with the increase of electricity core diameter, guarantee throughout to roll up some tangents with the income of negative pole piece, scratch negative pole utmost point ear has been avoided. Compared with the prior art, the battery cell winding guiding feeding device provided by the utility model can avoid scratching the electrode lugs during guiding and smoothing, and ensures the quality of battery cell winding.
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 cell winding guiding feeding device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cell winding guiding material feeding device according to a first embodiment of the present invention during winding;
fig. 3 is a schematic structural diagram of a cell winding guiding material feeding device according to a first embodiment of the present invention during winding.
Icon:
100-electric core winding and guiding feeding device; 110-positive electrode feeding roller; 120-negative pole feed roll; 130-positive electrode guide sheet; 131-positive drive; 140-negative pole guide plate; 141-a carrier; 143-negative driving member; 145-linkage mechanism; 150-winding needle; 160-a mounting plate; 170-positive pole air blowing piece; 180-negative pole air blowing piece; 200-positive plate; 300-negative pole piece.
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 utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers 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.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," 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.
As disclosed in the background art, the conventional tab flattening mechanism generally adopts a configuration of fixing a straight plate, which is directly attached to the surface of a pole piece to perform a flattening action on a pole piece feeding material. However, in the winding process, as the winding of the pole piece proceeds, the diameter of the battery core increases, the winding material line changes, and the change of the pole piece material line may cause the guide piece to scratch the tab.
In order to solve the problems, the utility model provides a novel battery cell winding guiding feeding device, wherein a positive electrode guide sheet and a negative electrode guide sheet can be synchronously guided along with the change of a pole piece material line, so that the positive and negative pole pieces can be effectively prevented from being folded before being fed, the pole lugs are prevented from being scratched, and the product quality is improved.
First embodiment
Referring to fig. 1 to fig. 3, the present embodiment provides a battery winding guiding feeding device 100, which can guide and smooth a positive plate 200 and a negative plate 300 before feeding, and can avoid scratching a tab during guiding and smoothing, thereby ensuring the quality of battery winding.
The battery cell winding, guiding and feeding device 100 provided in this embodiment includes an anode feeding roller 110, a cathode feeding roller 120, an anode guide sheet 130, a cathode guide sheet 140 and a winding needle 150, where the anode feeding roller 110 and the winding needle 150 are disposed at an interval and are used for conveying the anode sheet 200 to the winding needle 150, the cathode feeding roller 120 and the winding needle 150 are disposed at an interval and are used for conveying the cathode sheet 300 to the winding needle 150, and the winding needle 150 is used for winding the anode sheet 200 and the cathode sheet 300 and forming a battery cell; the positive electrode guide sheet 130 is arranged at the feeding position of the positive electrode sheet 200 of the winding needle 150 and used for guiding the positive electrode sheet 200 and smoothing a positive electrode tab on the positive electrode sheet 200, and the end part of the positive electrode guide sheet 130 can be close to or far away from the winding needle 150 and is used for being tangent to a winding point of the positive electrode sheet 200; the negative electrode guide piece 140 is arranged at the feeding position of the negative electrode piece 300 of the winding needle 150 and used for guiding the negative electrode piece 300 and smoothing a negative electrode lug on the negative electrode piece 300, and the end part of the negative electrode guide piece 140 can be close to or far away from the winding needle 150 and is used for being tangent to a winding point of the negative electrode piece 300.
In this embodiment, the positive electrode guide piece 130 and the negative electrode guide piece 140 are both plate-shaped structures, wherein the lower end of the positive electrode guide piece 130 is tangent to the rolling point of the positive electrode piece 200, so as to ensure the guiding and smoothing effects on the positive electrode piece 200; the lower end of the negative electrode guide piece 140 is tangent to the winding point of the negative electrode piece 300, so that the guiding and smoothing effects on the negative electrode piece 300 are ensured.
In this embodiment, the winding point of the positive electrode sheet 200 refers to the winding point of the positive electrode sheet 200 wound on the winding needle 150, and the winding point of the negative electrode sheet 300 refers to the winding point of the negative electrode sheet 300 wound on the winding needle 150, where the winding point of the positive electrode sheet 200 and the winding point of the negative electrode sheet 300 both refer to a tangent point on the outer circumference circle of the formed battery cell, that is, the tangent point between the positive electrode sheet 200 and the battery cell and the tangent point between the negative electrode sheet 300 and the battery cell.
Further, the battery cell winding guiding feeding device 100 further includes a mounting plate 160, the positive electrode feeding roller 110, the negative electrode feeding roller 120 and the winding needle 150 are arranged on the mounting plate 160 at intervals in pairs, and the positive electrode guiding sheet 130 is arranged on the mounting plate 160 and can rotate relative to the mounting plate 160 to drive the end of the positive electrode guiding sheet 130 to approach or leave the winding needle 150; the negative electrode guide plate 140 is movably disposed on the mounting plate 160 and can reciprocate linearly with respect to the mounting plate 160 to drive the end of the negative electrode guide plate 140 to approach or separate from the winding needle 150.
In this embodiment, the positive electrode feeding roller 110 and the negative electrode feeding roller 120 are both installed on the upper side of the winding needle 150, the positive electrode feeding roller 110 is arranged on the right side, the negative electrode feeding roller 120 is arranged on the left side, the positive electrode sheet 200 and the negative electrode sheet 300 are both wound downwards by the left side of the winding needle 150, and the positive electrode feeding roller 110 and the negative electrode feeding roller 120 are respectively used for feeding the positive electrode sheet 200 and the negative electrode sheet 300.
In this embodiment, one end of the positive electrode guiding sheet 130 is provided with a positive electrode driving member 131, the other end of the positive electrode guiding sheet 130 is used for being tangent to the winding point of the positive electrode sheet 200, and the positive electrode driving member 131 is connected to the mounting plate 160 and is used for driving the positive electrode guiding sheet 130 to rotate, so that the other end of the positive electrode guiding sheet 130 is close to or far away from the winding needle 150. Specifically, the positive driving member 131 is a stepping motor, the stepping motor is disposed on the mounting plate 160, one end of the positive guide piece 130 is connected to the stepping motor and is driven by the stepping motor to rotate, so as to drive the positive guide piece 130 to move along the material line of the positive plate 200, and the positive guide piece 130 is ensured to guide and smooth the positive plate 200 without applying excessive pressure to the tab to scratch the tab.
In other preferred embodiments of the present invention, one end of the positive electrode guide piece 130 may also be hinged to the mounting plate 160 and connected through a torsion spring, and the other end is also tangent to the winding point of the positive electrode piece 200, and the torsion spring applies an elastic force to the positive electrode guide piece 130 against the positive electrode piece 200, and the elastic force is linear within a certain range, so that the positive electrode guide piece 130 can be naturally pushed to rotate along with the increase of the diameter of the battery cell, which also can ensure that the lower end of the positive electrode guide piece 130 is always tangent to the winding point of the positive electrode piece 200, and avoid scratching the tab.
In this embodiment, one end of the negative electrode guide plate 140 is provided with a carrier 141, the carrier 141 is provided with a negative electrode driving member 143, the other end of the negative electrode guide plate 140 is used for being tangent to the winding point of the negative electrode plate 300, and the negative electrode driving member 143 is connected to the mounting plate 160 and is used for driving the carrier 141 and the negative electrode guide plate 140 to make a linear reciprocating motion, so that the other end of the negative electrode guide plate 140 is close to or far from the winding needle 150. Specifically, the negative driving member 143 is a driving motor, the driving motor is disposed on the mounting plate 160, the bearing frame 141 is in transmission connection with the driving motor and can be driven by the driving motor to perform linear reciprocating motion, the transmission structure between the two may be a belt or a chain, that is, the rotational driving force of the driving motor is converted into a linear driving force, so as to drive the bearing frame 141 to perform linear motion, and the specific transmission connection structure is not specifically limited herein.
It should be noted that, in this embodiment, the direction in which the negative electrode driving member 143 drives the bearing frame 141 and the negative electrode guide tab 140 to move is perpendicular to the conveying direction of the negative electrode tab 300, and the lower end of the negative electrode guide tab 140 is always engaged with the winding point of the negative electrode tab 300, so as to ensure the guiding and smoothing effects.
In this embodiment, the bearing frame 141 is further provided with a link mechanism 145, one end of the negative electrode guide tab 140 is hinged on the bearing frame 141, and the link mechanism 145 is connected with the negative electrode guide tab 140 and is used for adjusting an included angle between the negative electrode guide tab 140 and the bearing frame 141. Specifically, the top end of the negative electrode guide piece 140 is hinged to the end of the bearing frame 141, and can rotate relative to the mounting plate 160 under the adjustment of the link mechanism 145, so as to adjust the initial guide leveling position of the negative electrode guide piece 140, and ensure that the lower end of the negative electrode guide piece 140 is always engaged with the winding point of the negative electrode piece 300.
In this embodiment, the link mechanism 145 may include an adjusting cylinder, one end of the adjusting cylinder is hinged to the negative electrode guide plate 140, and the other end of the adjusting cylinder is connected to the carrier 141 for driving the negative electrode guide plate 140 to rotate relative to the carrier 141. Specifically, adjust cylinder's one end and negative pole guide piece 140's middle part position articulated, the other end with bear frame 141 and articulate to through adjust cylinder's telescopic action, can drive the pin joint rotation on negative pole guide piece 140 relative its top, realize angle of guidance's adjustment. Of course, the adjusting cylinder can be replaced by other adjusting parts such as an oil cylinder or an electric push rod.
In this embodiment, the mounting plate 160 is further provided with a positive electrode blowing member 170, the positive electrode blowing member 170 is disposed opposite to the positive electrode guide piece 130 and forms a positive electrode blowing channel through which the positive electrode tab 200 passes with the positive electrode guide piece 130, and the positive electrode blowing member 170 is configured to blow air toward the positive electrode guide piece 130 to prevent the positive electrode tab of the positive electrode tab 200 from being folded. Specifically, the positive electrode blowing piece 170 and the positive electrode guide piece 130 are respectively arranged on two sides of the positive electrode sheet 200, and the positive electrode blowing piece 170 is used for blowing out compressed gas, so that the positive electrode sheet 200 and the positive electrode tab always bear pressure towards the positive electrode guide piece 130, the positive electrode tab is prevented from being turned inwards, and the winding quality of the positive electrode sheet 200 is further ensured.
In this embodiment, the mounting plate 160 is further provided with a negative blowing member 180, the negative blowing member 180 is disposed opposite to the negative guide plate 140 and forms a negative blowing channel for the negative electrode tab 300 to pass through with the negative guide plate 140, and the negative blowing member 180 is configured to blow air toward the negative guide plate 140 to prevent the negative electrode tab of the negative electrode tab 300 from being folded. Specifically, the negative electrode blowing piece 180 and the negative electrode guide piece 140 are respectively arranged on two sides of the negative electrode sheet 300, and the negative electrode blowing piece 180 is used for blowing out compressed gas, so that the negative electrode sheet 300 and the negative electrode tab are always subjected to pressure towards the direction of the negative electrode guide piece 140, the negative electrode tab is prevented from being turned inwards, and the winding quality of the negative electrode sheet 300 is further ensured.
It should be noted that, here, the positive electrode blowing piece 170 and the negative electrode blowing piece 180 are both porous blowing devices, and can blow out uniform air columns through a plurality of blowing holes, so as to form an air curtain, and when acting on the positive electrode sheet 200 or the negative electrode sheet 300, the positive electrode tab or the negative electrode tab can be prevented from turning inwards, and the tab turning outwards can be smoothed through the positive electrode guide sheet 130 and the negative electrode guide sheet 140, so as to ensure the winding quality.
In the present embodiment, the surface of the positive electrode guide sheet 130 on the side for contacting with the positive electrode sheet 200 is coated with a positive electrode insulating layer; the surface of the negative electrode lead 140 on the side for contact with the negative electrode tab 300 is coated with a negative electrode insulating layer. Specifically, the positive electrode insulating layer and the negative electrode insulating layer are made of the same material, wherein the positive electrode guide sheet 130 and the negative electrode guide sheet 140 may be made of metal, and the surfaces of the positive electrode guide sheet and the negative electrode guide sheet are coated with non-conductive coating materials such as teflon or Mylar (Mylar film), so that the positive electrode guide sheet and the negative electrode guide sheet play a role in insulating and isolating and play a role in buffering at the same time, and further avoid scratching tabs.
In summary, the battery cell winding guiding feeding device 100 provided in this embodiment is configured to movably set the positive electrode guide sheet 130 at the feeding position of the positive electrode sheet 200 of the winding needle 150, so as to guide the positive electrode sheet 200 and smooth the positive electrode tab on the positive electrode sheet 200, and the end of the positive electrode guide sheet 130 can be close to or away from the winding needle 150 and is tangent to the feeding point of the positive electrode sheet 200, and by using the movably set positive electrode guide sheet 130, the end of the positive electrode guide sheet 130 is in a movable state, and is adjusted along with the increase of the diameter of the battery cell, so as to always ensure that the positive electrode sheet 200 is tangent to the feeding point, and avoid scratching the positive electrode tab. Meanwhile, the negative pole guide piece 140 is movably arranged at the negative pole piece 300 feeding position of the winding needle 150, the negative pole piece 300 is guided, the negative pole lug on the negative pole piece 300 is smoothed, the end part of the negative pole guide piece 140 can be close to or far away from the winding needle 150, the winding point is tangent with the winding point of the negative pole piece 300, the negative pole guide piece 140 is movably arranged, the end part of the negative pole guide piece 140 is in a movable state, the winding point is always tangent with the winding point of the negative pole piece 300, and the negative pole lug is prevented from being scratched. Compare in conventional coiling direction pan feeding structure, this embodiment can avoid the scratch utmost point ear when guaranteeing to lead and smooth the pole piece, has effectively avoided utmost point ear to turn over and has turned over, has guaranteed the coiling quality of electric core.
Second embodiment
The embodiment provides a winding machine, which includes a cell winding guiding and feeding device 100, wherein the basic structure and principle of the cell winding guiding and feeding device 100 and the generated technical effects are the same as those of the first embodiment, and for brief description, reference may be made to corresponding contents in the first embodiment for parts that are not mentioned in the embodiment.
The winding machine provided by the embodiment comprises an anode unreeling mechanism, a cathode reeling mechanism and a cell reeling guiding and feeding device 100, wherein the cell reeling guiding and feeding device 100 comprises an anode feeding roller 110, a cathode feeding roller 120, an anode guide sheet 130, a cathode guide sheet 140 and a winding needle 150, the anode feeding roller 110 and the winding needle 150 are arranged at intervals and used for conveying an anode sheet 200 to the winding needle 150, the cathode feeding roller 120 and the winding needle 150 are arranged at intervals and used for conveying a cathode sheet 300 to the winding needle 150, and the winding needle 150 is used for winding the anode sheet 200 and the cathode sheet 300 and forming a cell; the positive electrode guide sheet 130 is arranged at the feeding position of the positive electrode sheet 200 of the winding needle 150 and used for guiding the positive electrode sheet 200 and smoothing a positive electrode tab on the positive electrode sheet 200, and the end part of the positive electrode guide sheet 130 can be close to or far away from the winding needle 150 and is used for being tangent to a winding point of the positive electrode sheet 200; the negative electrode guide piece 140 is arranged at the feeding position of the negative electrode piece 300 of the winding needle 150 and used for guiding the negative electrode piece 300 and smoothing a negative electrode lug on the negative electrode piece 300, and the end part of the negative electrode guide piece 140 can be close to or far away from the winding needle 150 and is used for being tangent to a winding point of the negative electrode piece 300. The positive unwinding mechanism is disposed at the upstream of the positive feeding roller 110 for providing the positive plate 200, and the negative unwinding mechanism is disposed at the upstream of the negative feeding roller 120 for providing the negative plate 300.
In this embodiment, the winding machine further includes a conventional tab cutting mechanism, a separator unwinding mechanism, and the like, and the specific structure of the winding machine can refer to the existing winding machine.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (10)
1. The battery cell winding and guiding feeding device is characterized by comprising an anode feeding roller, a cathode feeding roller, an anode guide sheet, a cathode guide sheet and a winding needle, wherein the anode feeding roller and the winding needle are arranged at intervals and used for conveying an anode sheet to the winding needle;
the positive electrode guide sheet is movably arranged at a positive electrode sheet feeding position of the winding needle and used for guiding the positive electrode sheet and smoothing a positive electrode tab on the positive electrode sheet, and the end part of the positive electrode guide sheet can be close to or far away from the winding needle and is tangent to a winding point of the positive electrode sheet;
the negative pole direction piece activity sets up roll up negative pole piece pan feeding department of needle, be used for right the negative pole piece leads, and right negative pole utmost point ear on the negative pole piece smooths, just the tip of negative pole direction piece can be close to or keep away from roll up the needle, and be used for with the income of negative pole piece is rolled up the point tangent.
2. The cell winding guiding and feeding device according to claim 1, further comprising a mounting plate, wherein the positive feeding roller, the negative feeding roller and the winding needle are arranged on the mounting plate at intervals in pairs, and the positive guide piece is arranged on the mounting plate and can rotate relative to the mounting plate to drive the end of the positive guide piece to approach or leave the winding needle; the negative pole guide piece is movably arranged on the mounting plate and can move linearly and reciprocally relative to the mounting plate so as to drive the end part of the negative pole guide piece to be close to or far away from the winding needle.
3. The cell winding guiding feeding device according to claim 2, wherein a positive driving member is disposed at one end of the positive guide plate, and the other end of the positive guide plate is used for being tangent to a feeding point of the positive plate, and the positive driving member is connected to the mounting plate and is used for driving the positive guide plate to rotate, so that the other end of the positive guide plate is close to or far away from the winding needle.
4. The cell winding guiding feeding device according to claim 2, wherein a bearing frame is disposed at one end of the negative electrode guide piece, a negative electrode driving member is disposed on the bearing frame, the other end of the negative electrode guide piece is used for being tangent to a winding point of the negative electrode piece, and the negative electrode driving member is connected to the mounting plate and is used for driving the bearing frame and the negative electrode guide piece to perform linear reciprocating motion, so that the other end of the negative electrode guide piece is close to or far away from the winding needle.
5. The battery cell winding guiding and feeding device according to claim 4, wherein the carrier is further provided with a link mechanism, one end of the negative electrode guide piece is hinged to the carrier, and the link mechanism is connected with the negative electrode guide piece and used for adjusting an included angle between the negative electrode guide piece and the carrier.
6. The battery cell winding guiding feeding device according to claim 5, wherein the link mechanism comprises an adjusting cylinder, one end of the adjusting cylinder is hinged to the negative electrode guide plate, and the other end of the adjusting cylinder is connected to the bearing frame and used for driving the negative electrode guide plate to rotate relative to the bearing frame.
7. The cell winding guiding feeding device according to claim 2, wherein a positive electrode blowing member is further disposed on the mounting plate, the positive electrode blowing member is disposed opposite to the positive electrode guide plate and forms a positive electrode blowing channel for the positive electrode plate to pass through with the positive electrode guide plate, and the positive electrode blowing member is used for blowing air towards the positive electrode guide plate to prevent the positive electrode tab of the positive electrode plate from being folded.
8. The battery cell winding guiding feeding device according to claim 2, wherein a negative electrode blowing member is further disposed on the mounting plate, the negative electrode blowing member is disposed opposite to the negative electrode guide plate and forms a negative electrode blowing channel with the negative electrode guide plate for the negative electrode plate to pass through, and the negative electrode blowing member is configured to blow air toward the negative electrode guide plate to prevent the negative electrode tab of the negative electrode plate from being folded.
9. The cell winding guiding feeding device according to claim 1, wherein a surface of the positive electrode guide sheet on a side contacting with the positive electrode sheet is coated with a positive insulating layer; and a negative electrode insulating layer is coated on the surface of one side of the negative electrode guide plate, which is in contact with the negative electrode plate.
10. A winding machine, comprising an anode unwinding mechanism, a cathode unwinding mechanism and the cell winding guiding and feeding device as claimed in any one of claims 1 to 9, wherein the anode unwinding mechanism is disposed upstream of the anode feeding roller and is used for supplying anode sheets, and the cathode unwinding mechanism is disposed upstream of the cathode feeding roller and is used for supplying cathode sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122558261.3U CN216213656U (en) | 2021-10-22 | 2021-10-22 | Electricity core coiling direction pan feeding device and winder |
Applications Claiming Priority (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115172851A (en) * | 2022-08-08 | 2022-10-11 | 楚能新能源股份有限公司 | Tab straightening device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115172851A (en) * | 2022-08-08 | 2022-10-11 | 楚能新能源股份有限公司 | Tab straightening device |
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