Automatic tab angle alignment mechanism of reverse-winding electric core winding machine
阅读说明：本技术 反卷电芯卷绕机自动极耳角度对齐机构 (Automatic tab angle alignment mechanism of reverse-winding electric core winding machine ) 是由 许炎 童焰 陈志勇 于 2020-06-29 设计创作，主要内容包括：本发明涉及电池生产技术领域,具体涉及一种反卷电芯卷绕机自动极耳角度对齐机构,包括与卷绕机卷针相邻设置的正极压紧输送组件,安装于卷绕机上,用于压紧正极片往卷绕机卷针送料；负极压紧输送组件,安装于卷绕机上,用于压紧负极片往卷绕机卷针送料；且所述正极压紧输送组件输出端距离卷针的距离小于所述负极压紧输送组件输出端距离卷针的距离。本发明的反卷电芯卷绕机自动极耳角度对齐机构,采用正极压紧输送组件和负极压紧输送组件,对正极片和负极片分别进行先压紧定位后送料卷绕的操作,可有效的控制正极耳和负极耳之间形成的角度。(The invention relates to the technical field of battery production, in particular to an automatic tab angle alignment mechanism of a reverse-winding electric core winder, which comprises an anode pressing conveying assembly arranged adjacent to a winding needle of the winder, and a feeding mechanism arranged on the winder and used for pressing an anode sheet to feed to the winding needle of the winder; the negative electrode pressing and conveying assembly is arranged on the winding machine and is used for pressing the negative electrode piece and feeding the negative electrode piece to a winding needle of the winding machine; and the distance from the output end of the positive electrode pressing and conveying assembly to the winding needle is smaller than the distance from the output end of the negative electrode pressing and conveying assembly to the winding needle. According to the automatic tab angle alignment mechanism of the reverse-winding electric core winding machine, the positive electrode pressing conveying assembly and the negative electrode pressing conveying assembly are adopted, the positive electrode tab and the negative electrode tab are respectively subjected to the operations of pressing, positioning and feeding winding, and then the angle formed between the positive electrode tab and the negative electrode tab can be effectively controlled.)
1. Automatic utmost point ear angle alignment mechanism of anti-book electric core coiler which characterized in that includes: arranged adjacent to the winding-needle of the winder
The positive electrode pressing and conveying assembly is arranged on the winding machine and is used for pressing the positive electrode plate to feed materials to a winding needle of the winding machine;
the negative electrode pressing and conveying assembly is arranged on the winding machine and is used for pressing the negative electrode piece and feeding the negative electrode piece to a winding needle of the winding machine;
and the distance from the output end of the positive electrode pressing and conveying assembly to the winding needle is smaller than the distance from the output end of the negative electrode pressing and conveying assembly to the winding needle.
2. The automatic tab angle alignment mechanism of a reverse winding electric core winder according to claim 1, wherein the positive compression feed assembly comprises:
the positive electrode component mounting frame is fixedly arranged on the winding machine and used for mounting and fixing the rest components of the positive electrode pressing conveying component;
the positive plate conveying plate is fixedly arranged at the bottom of the positive assembly mounting rack and used for conveying and transferring the positive plate;
the positive lug detection groove is formed in the positive conveying plate and used for realizing in-place detection of the positive lugs by the induction element;
the positive tab sensing assembly is arranged at the bottom of the positive plate conveying plate and at a position close to the positive tab detection groove and is used for detecting and sensing whether the positive tabs are in place or not;
and the positive electrode pressing sheet assembly is arranged on the positive electrode assembly mounting frame and used for rolling and pressing the positive electrode sheet.
3. The automatic tab angle alignment mechanism of the reverse winding electric core winder according to claim 1, wherein the negative compression conveyor assembly comprises:
the negative electrode component mounting frame is fixedly arranged on the winding machine and used for mounting and fixing the rest components of the negative electrode pressing and conveying component;
the negative plate conveying plate is fixedly arranged at the bottom of the negative component mounting rack and used for conveying and transferring the negative plates;
the negative electrode lug detection groove is formed in the negative electrode conveying plate and is used for realizing in-place detection of the sensing element on the negative electrode lugs;
the negative electrode tab sensing assembly is arranged at the bottom of the negative electrode sheet conveying plate and close to the negative electrode tab detection groove and is used for detecting and sensing whether the negative electrode tabs are in place or not;
and the negative pole tabletting component is arranged on the negative pole component mounting frame and is used for rolling and pressing the negative pole piece.
4. The automatic tab angle alignment mechanism of the reverse-winding electric core winder as claimed in claim 3, wherein the negative and positive electrode tab assemblies each comprise:
the pressing driving assembly and the rotating driving assembly are arranged on the positive electrode assembly mounting frame and the negative electrode assembly mounting frame and are used for providing power sources for pressing and rotating the assemblies;
one end of the linkage block is hinged with the pressing driving component, and the other end of the linkage block is connected with the rotating driving component and used for realizing the pressing and rotating combined motion of the components;
the transmission assembly is arranged on the linkage block, one end of the transmission assembly is connected with the rotary driving assembly, and the transmission assembly is used for transmitting rotary power;
and the tabletting idler wheel is arranged on one side of the transmission assembly, which is far away from the side connected with the rotary driving assembly, and is used for rolling and pressing the positive plate and the negative plate.
5. The automatic tab angle alignment mechanism of the reverse-winding electric core winder according to claim 4, wherein the surface of the pressing roller is coated with an insulating buffer layer, and the buffer layer is a buffer foam layer, an insulating rubber layer or an insulating silica gel layer.
6. The automatic tab angle alignment mechanism of an anti-wind core winder as claimed in claim 3, wherein said negative tab sensing assembly and positive tab sensing assembly each comprise:
the inductor mounting rack is mounted at the bottoms of the positive plate conveying plate and the negative plate conveying plate and used for mounting and fixing the induction elements;
and the in-place sensor is arranged on the sensor mounting frame and the positions corresponding to the positive lug detection groove and the negative lug detection groove and is used for in-place detection of the positive lug and the negative lug.
7. The automatic tab angle alignment mechanism of the reverse-winding electric core winder according to claim 3, wherein a pole piece support bar is additionally arranged on one side of the negative pole conveying plate and the positive pole conveying plate close to the pressing roller for auxiliary support in the conveying and transferring process of the positive pole piece and the negative pole piece.
8. The automatic tab angle aligning mechanism of the reverse winding core winder according to claim 3, wherein the negative plate conveying plate and the positive plate conveying plate are provided with a tab deviation correcting bar for adjusting the side edge of the positive plate to align with the side edge of the positive plate conveying plate adjacent to the pressing roller or the side edge of the tab supporting bar, and adjusting the side edge of the negative plate to align with the side edge of the negative plate conveying plate adjacent to the pressing roller or the side edge of the tab supporting bar.
9. The automatic tab angle alignment mechanism of an anti-wind core winder as claimed in claim 8, wherein the pole piece correction strip comprises:
the mounting part is fixedly and movably connected to the positive plate conveying plate and the negative plate conveying plate and is used for limiting and adjusting the overall position of the pole piece deviation rectifying strip;
the front end deviation rectifying part is arranged on one side of the positive plate conveying plate and the negative plate conveying plate close to a winding needle of the winding machine and is used for adjusting and rectifying the front end positions of the positive plate and the negative plate;
the tail end deviation rectifying part is arranged on one side of the positive plate conveying plate and the negative plate conveying plate, which is far away from the winding needle of the winding machine, and is used for adjusting and rectifying the tail end positions of the positive plate and the negative plate;
and the detection groove avoiding part is arranged above the positive lug detection groove and the negative lug detection groove and is used for avoiding the positions of the detection grooves.
10. The automatic tab angle alignment mechanism of the reverse winding electric core winder according to claim 1, wherein the output plane of the positive electrode pressing and conveying assembly and the output plane of the negative electrode pressing and conveying assembly form an included angle of 45 ° or more with the winding needle tangent plane of the winder.
Technical Field
The invention relates to the technical field of battery production, in particular to an automatic tab angle aligning mechanism of a reverse winding electric core winding machine.
Background
Cells are generally classified into laminated cells and wound cells. In the prior art, in the process of winding the positive plate and the negative plate to form the winding battery core, the angles of the positive lug and the negative lug cannot be effectively adjusted before entering a winding needle of the winding machine, the positions and angles of the negative lug need to be manually adjusted and aligned after the winding process is completed, the angle adjustment efficiency between the positive and negative poles is low, and the position degree deviation of the positive plate and the negative plate before entering the winding needle of the winding machine can be continuously increased along with the winding of the pole piece.
Disclosure of Invention
The invention aims to provide an automatic tab angle alignment mechanism of a reverse-winding electric core winding machine, which can effectively adjust the angle between a positive tab and a negative tab.
The invention is mainly realized by the following technical scheme:
the invention discloses an automatic tab angle alignment mechanism of a reverse-winding electric core winder, which comprises an anode pressing and conveying assembly, a winding machine winding needle and a winding machine winding needle, wherein the anode pressing and conveying assembly is arranged adjacent to the winding machine winding needle and is arranged on the winding machine and used for pressing an anode sheet to feed the anode sheet to the winding machine winding needle; the negative electrode pressing and conveying assembly is arranged on the winding machine and is used for pressing the negative electrode piece and feeding the negative electrode piece to a winding needle of the winding machine;
and in order to adapt to the structure that the initial section length of the negative pole piece of the winding battery core is greater than that of the positive pole piece, the distance from the output end of the positive pole pressing and conveying assembly to the winding needle is smaller than the distance from the output end of the negative pole pressing and conveying assembly to the winding needle.
In one embodiment, the positive compression conveying assembly comprises:
the positive electrode component mounting frame is fixedly arranged on the winding machine and used for mounting and fixing the rest components of the positive electrode pressing conveying component;
the positive plate conveying plate is fixedly arranged at the bottom of the positive assembly mounting rack and used for conveying and transferring the positive plate;
the positive lug detection groove is formed in the positive conveying plate and used for smoothly passing a detection signal of the positive lug sensing element and detecting whether the positive lug is in place or not;
the positive tab sensing assembly is arranged at the bottom of the positive plate conveying plate and at a position close to the positive tab detection groove and is used for detecting and sensing whether the positive tabs are in place or not;
and the positive electrode pressing sheet assembly is arranged on the positive electrode assembly mounting frame and used for rolling and pressing the positive electrode sheet.
In one embodiment, the negative compression delivery assembly comprises:
the negative electrode component mounting frame is fixedly arranged on the winding machine and used for mounting and fixing the rest components of the negative electrode pressing and conveying component;
the negative plate conveying plate is fixedly arranged at the bottom of the negative component mounting rack and used for conveying and transferring the negative plates;
the negative electrode tab detection groove is formed in the negative electrode conveying plate and used for smoothly passing a detection signal of the negative electrode tab sensing element and detecting whether the negative electrode tab is in place;
the negative electrode tab sensing assembly is arranged at the bottom of the negative electrode sheet conveying plate and close to the negative electrode tab detection groove and is used for detecting and sensing whether the negative electrode tabs are in place or not;
and the negative pole tabletting component is arranged on the negative pole component mounting frame and is used for rolling and pressing the negative pole piece.
In one embodiment, the negative electrode sheet assembly and the positive electrode sheet assembly each include:
the pressing driving assembly and the rotating driving assembly are arranged on the positive electrode assembly mounting frame and the negative electrode assembly mounting frame and are used for providing power sources for pressing and rotating the assemblies; the pressing driving assembly presses the pole piece on the conveying plate, and then the rotary driving assembly drives the pole piece to be conveyed and transferred to a winding needle of the winding machine, so that rolling pressing feeding of the pole piece is achieved.
One end of the linkage block is hinged with the pressing driving component, and the other end of the linkage block is connected with the rotating driving component and used for realizing the pressing and rotating combined motion of the components;
the transmission assembly is arranged on the linkage block, one end of the transmission assembly is connected with the rotary driving assembly, and the transmission assembly is used for transmitting rotary power;
and the tabletting idler wheel is arranged on one side of the transmission assembly, which is far away from the side connected with the rotary driving assembly, and is used for rolling and pressing the positive plate and the negative plate.
In one embodiment, the surface of the pressing roller is coated with an insulating buffer layer, the buffer layer is a buffer foam layer, an insulating rubber layer or an insulating silica gel layer, so that the stress applied to the pole piece by the pressing roller can be effectively buffered at the moment when the pressing roller presses the pole piece, and the pressing roller has good insulating property and anti-slip property and can effectively ensure the stability of feeding and winding of the pole piece.
In one embodiment, the negative tab sensing assembly and the positive tab sensing assembly each comprise:
the inductor mounting rack is mounted at the bottoms of the positive plate conveying plate and the negative plate conveying plate and used for mounting and fixing the induction elements;
and the in-place sensor is arranged on the sensor mounting frame and the positions corresponding to the positive lug detection groove and the negative lug detection groove and is used for in-place detection of the positive lug and the negative lug.
When the positive lug sensing assembly detects that the positive lug on the positive plate is in place, the in-place sensor transmits a signal to a control system of the winding machine, and the control system of the winding machine controls the pressing driving assembly to start to press the positive plate, so that the initial winding position of the positive lug is limited; when the cathode lug sensing assembly detects that the cathode lug on the cathode plate is in place, the in-place sensor transmits a signal to a control system of a winding machine, and the control system of the winding machine controls the pressing driving assembly to start to press the cathode plate, so that the initial winding position of the cathode lug is limited; when the in-place sensor detects that the positive tab and the negative tab are in place, the winder control system controls the rotary driving assembly to operate, the positive tab and the negative tab are simultaneously rotated to drive feeding, the positive tab and the negative tab are conveyed to a winding needle of a winder, and the positive tab and the negative tab are wound and formed. The angle formed between the positive tab and the negative tab is mainly adjusted by the position difference between the in-place sensors which respectively detect whether the positive tab and the negative tab are in place.
In one embodiment, pole piece support bars are additionally arranged on the sides, close to the tabletting rollers, of the negative pole conveying plate and the positive pole conveying plate and used for assisting in the conveying and transferring processes of the positive pole pieces and the negative pole pieces.
In one embodiment, the pole piece deviation rectifying strips are arranged on the negative pole piece conveying plate and the positive pole piece conveying plate, the side edge of the positive pole piece or the side edge of the pole piece supporting strip is close to the pressing roller when the side edge of the positive pole piece is aligned, the side edge of the negative pole piece or the side edge of the pole piece supporting strip is aligned when the side edge of the negative pole piece is aligned, the side edge of the pressing roller or the side edge of the pole piece supporting strip is close to the negative pole piece conveying plate, so that the alignment degree and the consistency of the positive pole piece and the negative pole piece in the winding needle are adjusted, the positive pole piece and the negative pole piece are prevented from not being aligned when the.
In one embodiment, the pole piece deviation rectifying strip comprises:
the mounting part is fixedly and movably connected to the positive plate conveying plate and the negative plate conveying plate and is used for limiting and adjusting the overall position of the pole piece deviation rectifying strip;
the front end deviation rectifying part is arranged on one side of the positive plate conveying plate and the negative plate conveying plate close to a winding needle of the winding machine and is used for adjusting and rectifying the front end positions of the positive plate and the negative plate;
the tail end deviation rectifying part is arranged on one side of the positive plate conveying plate and the negative plate conveying plate, which is far away from the winding needle of the winding machine, and is used for adjusting and rectifying the tail end positions of the positive plate and the negative plate;
and the detection groove avoiding part is arranged above the positive lug detection groove and the negative lug detection groove and used for avoiding the position of the detection groove and preventing the pole piece deviation rectifying strip from blocking the transmission of the in-place sensor signal.
In one embodiment, the output plane of the positive electrode pressing and conveying assembly and the output plane of the negative electrode pressing and conveying assembly form an included angle of more than 45 degrees with the tangent plane of the winding needle of the winding machine.
The automatic tab angle aligning mechanism of the reverse-winding electric core winding machine has the following advantages:
1. according to the automatic tab angle alignment mechanism of the reverse-winding electric core winding machine, the positive electrode pressing conveying assembly and the negative electrode pressing conveying assembly are adopted, the positive electrode tab and the negative electrode tab are respectively subjected to the operations of pressing, positioning and feeding winding, and then the angle formed between the positive electrode tab and the negative electrode tab can be effectively controlled.
2. According to the positive electrode pressing and conveying assembly and the negative electrode pressing and conveying assembly, an angle formed between a positive electrode tab and a negative electrode tab is adjusted mainly through a position difference between the positive electrode tab sensing assembly and the negative electrode tab sensing assembly; after the positive tab sensing assembly and the negative tab sensing assembly with position difference respectively detect whether the positive tab and the negative tab are in place, the pressing driving assembly presses and positions the positive plate and the negative plate, and then the positive plate and the negative plate are conveyed to a winding needle of a winding machine together to be wound to form a battery cell.
3. The positive pole pressing and conveying assembly and the negative pole pressing and conveying assembly are provided with the pole piece deviation rectifying strips, so that the initial angle of the positive pole piece and the negative pole piece entering the winding needle can be effectively corrected, and the winding alignment degree and consistency of the positive pole piece and the negative pole piece are ensured.
Drawings
Fig. 1 is a schematic perspective view of an automatic tab angle alignment mechanism of an anti-wind electric core winder according to an embodiment.
Fig. 2 is a front view of the automatic tab angle alignment mechanism of the reverse winding electric core winder of fig. 1.
Fig. 3 is a schematic structural diagram of the positive electrode pressing and conveying assembly in one embodiment.
Fig. 4 is a schematic structural diagram of the negative electrode pressing and conveying assembly in one embodiment.
FIG. 5 is a schematic structural diagram of a pole piece deviation rectifying strip in an embodiment.
Detailed Description
The automatic tab angle aligning mechanism of the reverse winding electric core winder of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships, are used based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and for the simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, in a preferred embodiment, the automatic tab
As shown in fig. 3, the positive electrode compacting
As shown in fig. 4, the negative electrode compacting
As shown in fig. 3 and 4, the negative
The surface cladding of preforming
As shown in fig. 3 and 4, the negative
Specifically, after the positive
In addition, as shown in fig. 3 and 4, the negative
As shown in fig. 5, the pole piece
The automatic tab angle alignment mechanism of the reverse-winding electric core winder in the embodiment adopts the positive electrode compression conveying assembly and the negative electrode compression conveying assembly, and the positive electrode tab and the negative electrode tab are respectively subjected to the operation of firstly compressing, positioning and then feeding and winding, so that the angle formed between the positive electrode tab and the negative electrode tab can be effectively controlled. The positive electrode pressing and conveying assembly and the negative electrode pressing and conveying assembly adjust an angle formed between the positive electrode tab and the negative electrode tab mainly through a position difference between the positive electrode tab sensing assembly and the negative electrode tab sensing assembly; after the positive tab sensing assembly and the negative tab sensing assembly with position difference respectively detect whether the positive tab and the negative tab are in place, the pressing driving assembly presses and positions the positive plate and the negative plate, and then the positive plate and the negative plate are conveyed to a winding needle of a winding machine together to be wound to form a battery cell. In addition, pole piece deviation rectifying strips are arranged on the positive pole pressing conveying assembly and the negative pole pressing conveying assembly, so that the initial angle of the positive pole piece and the negative pole piece entering the winding needle can be effectively rectified, and the winding alignment degree and consistency of the positive pole piece and the negative pole piece are guaranteed.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.
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