阅读说明：本技术 一种锂电池用极片卷料自动换料装置 (Automatic device that reloads of pole piece coil stock for lithium cell ) 是由 江军发 袁治彬 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种锂电池用极片卷料自动换料装置,包括相对设置的第一换料组件和第二换料组件,第一换料组件与第二换料组件之间沿料带送料方向依次设置有切断工位、换料工位和备料工位,第一换料组件包括第一切刀、第一夹轮和第一粘料轮,第二换料组件包括第二切刀、第二夹轮和第二粘料轮,位于备料工位的第一粘料轮或第二粘料轮上粘贴固定新料带的头部,切断工位通过第一切刀或第二切刀将旧料带尾部切断,位于换料工位的第一夹轮和第二夹轮将新料带头部与旧料带尾部夹紧并粘贴固定。本发明结构合理,实现新旧料带的自动更换,提高锂电池生产效率,提高锂电池产量,粘胶轮通过有阻尼的齿面,胶带可以粘贴上去而且不至于粘胶太紧。(The invention discloses an automatic pole piece coil stock changing device for a lithium battery, which comprises a first stock changing assembly and a second stock changing assembly which are oppositely arranged, wherein a cutting station, a stock changing station and a stock preparing station are sequentially arranged between the first stock changing assembly and the second stock changing assembly along a material strip feeding direction, the first stock changing assembly comprises a first cutter, a first clamping wheel and a first adhesive wheel, the second stock changing assembly comprises a second cutter, a second clamping wheel and a second adhesive wheel, the head of a new material strip is fixedly adhered to the first adhesive wheel or the second adhesive wheel positioned on the stock preparing station, the tail of the old material strip is cut off by the cutting station through the first cutter or the second cutter, and the head of the new material strip and the tail of the old material strip are clamped and fixedly adhered by the first clamping wheel and the second clamping wheel positioned on the stock changing station. The automatic replacement device for the lithium battery is reasonable in structure, automatic replacement of new and old material belts is achieved, the production efficiency of the lithium battery is improved, the output of the lithium battery is improved, the adhesive tape can be adhered to the adhesive wheel through the damped tooth surface, and the situation that the adhesive tape is too tight is avoided.)

1. The automatic pole piece coil stock changing device for the lithium battery is characterized by comprising a first material changing assembly and a second material changing assembly which are arranged oppositely, wherein a cutting station, a material changing station and a material preparing station are sequentially arranged between the first material changing assembly and the second material changing assembly along a material belt feeding direction, the first material changing assembly comprises a first cutter, a first clamping wheel and a first material sticking wheel, the second material changing assembly comprises a second cutter, a second clamping wheel and a second material sticking wheel, the head of a new material belt is stuck and fixed on the first material sticking wheel or the second material sticking wheel positioned on the material preparing station, the tail of the old material belt is cut off by the cutting station through the first cutter or the second cutter, and the head of the new material belt and the tail of the old material belt are clamped and stuck and fixed by the first clamping wheel and the second clamping wheel positioned on the material changing station.

2. The automatic pole piece roll material changing device for the lithium battery as claimed in claim 1, wherein the head of the new material tape is provided with an adhesive tape which is connected with the first adhesive wheel or the second adhesive wheel in a sticking manner at a material preparation station and is connected with the tail of the old material tape in a sticking manner at a material changing station.

3. The automatic replacing device for the pole piece coil stock for the lithium battery as claimed in claim 2, wherein the cutting station is provided with a spacer block, the spacer block is provided with two guide surfaces, the two guide surfaces are respectively positioned at two sides of the spacer block facing the first cutter and the second cutter, the new material belt and the old material belt are respectively positioned at the outer sides of the two guide surfaces and are separated by the spacer block, and the two guide surfaces are both provided with a knife groove cooperating with the knife edge of the first cutter or the knife edge of the second cutter.

4. The automatic pole piece roll material changing device for the lithium battery as claimed in claim 3, wherein the two guide surfaces intersect to form a sharp corner of the spacer block, the sharp corner points to the feeding direction of the material belt, and the angle of the sharp corner is 30 degrees.

5. The automatic pole piece coil stock changing device for the lithium battery as claimed in claim 4, wherein the first material changing assembly further comprises a first fixing block, a first knife rest, a first air cylinder, a first wheel frame and a first driving air cylinder, the first air cylinder and the first driving air cylinder are respectively fixed on the first fixing block, the first cutter is connected with the first knife rest, the first knife rest is connected with a driving end of the first air cylinder, the first clamping wheel is connected with the first wheel frame, and the first wheel frame is connected with a driving end of the first driving air cylinder.

6. The automatic pole piece coil stock changing device for the lithium battery as claimed in claim 5, wherein the second material changing assembly further comprises a second fixed block, a second knife rest, a second cylinder, a second wheel carrier and a second driving cylinder, the second cylinder and the second driving cylinder are respectively fixed on the second fixed block, the second cutter is connected with the second knife rest, the second knife rest is connected with a driving end of the second cylinder, the second clamping wheel is connected with the second wheel carrier, and the second wheel carrier is connected with a driving end of the second driving cylinder.

7. The automatic material changing device for the pole piece coil stock for the lithium battery as claimed in claim 6, wherein guide rods are arranged between the first fixing block and the first knife rest, between the first fixing block and the first wheel frame, between the second fixing block and the second knife rest, and between the second fixing block and the second wheel frame, and the guide rods are slidably connected with the first fixing block or the second fixing block.

8. The automatic pole piece roll stock changing device for the lithium battery as claimed in claim 7, wherein the first gluing wheel and the second gluing wheel are both provided with tooth surfaces.

Technical Field

the invention relates to the technical field of lithium battery winding machines, in particular to an automatic pole piece coil stock changing device for a lithium battery.

Background

The development and maturity of new energy technology, the application of lithium cell is also more and more extensive. In current lithium battery devices, a battery formed by assembling and forming battery cells in a winding manner is called a winding battery, and the winding battery is also called a battery cell. Present lithium battery coiler or pelleter need change utmost point sheet material roll coil of strip in the course of the work to guarantee the continuous production of lithium cell, the tradition is to shut down whole machine after, is cutting old material area near unwinding device department, then changes new material roll and to rolling unwinding device on, and connect new material area head and old material area tail through the manual work, accomplishes the reloading, and the reloading is efficient, has reduced the output of electric core, influences the benefit of enterprise.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an automatic material changing device for a lithium battery pole piece coil stock, aiming at the defects in the prior art, so as to solve the problems in the background technology.

The automatic pole piece coil stock changing device comprises a first stock changing assembly and a second stock changing assembly which are arranged oppositely, wherein a cutting station, a stock changing station and a stock preparation station are sequentially arranged between the first stock changing assembly and the second stock changing assembly along a stock strip feeding direction, the first stock changing assembly comprises a first cutter, a first clamping wheel and a first adhesive wheel, the second stock changing assembly comprises a second cutter, a second clamping wheel and a second adhesive wheel, the head of a new stock strip is fixedly adhered to the first adhesive wheel or the second adhesive wheel positioned at the stock preparation station, the tail of the old stock strip is cut off by the cutting station through the first cutter or the second cutter, and the new head and the tail of the old stock strip are clamped and fixedly adhered by the first clamping wheel and the second clamping wheel positioned at the stock changing station.

As a further elaboration of the above technical solution:

In the technical scheme, the head of the new material belt is provided with an adhesive tape which is connected with the first adhesive wheel or the second adhesive wheel in a sticking way at the material preparation station and is connected with the tail of the old material belt in a sticking way at the material changing station.

In the above technical solution, the cutting station is provided with a spacer block, the spacer block is provided with two guide surfaces, the two guide surfaces are respectively located at two sides of the spacer block facing the first cutter and the second cutter, the new material belt and the old material belt are respectively located at the outer sides of the two guide surfaces and are separated by the spacer block, and the two guide surfaces are both provided with a knife slot cooperating with a knife edge of the first cutter or a knife edge of the second cutter.

In the technical scheme, the two guide surfaces are intersected to form a sharp corner of the spacing block, the sharp corner points to the feeding direction of the material belt, and the angle of the sharp corner is 30 degrees.

In the technical scheme, the first material changing assembly further comprises a first fixing block, a first tool rest, a first air cylinder, a first wheel carrier and a first driving air cylinder, the first air cylinder and the first driving air cylinder are respectively fixed on the first fixing block, the first cutter is connected with the first tool rest, the first tool rest is connected with the driving end of the first air cylinder, the first clamping wheel is connected with the first wheel carrier, and the first wheel carrier is connected with the driving end of the first driving air cylinder.

In the technical scheme, the second material changing assembly further comprises a second fixed block, a second tool rest, a second cylinder, a second wheel carrier and a second driving cylinder, the second cylinder and the second driving cylinder are respectively fixed on the second fixed block, the second cutter is connected with the second tool rest, the second tool rest is connected with the driving end of the second cylinder, the second clamping wheel is connected with the second wheel carrier, and the second wheel carrier is connected with the driving end of the second driving cylinder.

In the technical scheme, guide rods are arranged between the first fixing block and the first knife rest, between the first fixing block and the first wheel frame, between the second fixing block and the second knife rest, and between the second fixing block and the second wheel frame, and the guide rods are in sliding connection with the first fixing block or the second fixing block.

In the technical scheme, the first material sticking wheel and the second material sticking wheel are both provided with tooth surfaces.

Compared with the prior art, the invention has the beneficial effects that: the automatic replacement device for the new and old material belts is reasonable in structure, automatic replacement of the new and old material belts is achieved, lithium battery production efficiency is improved, lithium battery yield is improved, the first adhesive wheel and the second adhesive wheel can be used for adhering adhesive tapes without being too tight in adhesive, the new and old material belts are adhered together through the first clamping wheel and the second clamping wheel, the residual part of the tail of the old material belt is cut off through the first cutter or the second cutter, and automatic replacement of the new and old material belts is completed.

Drawings

FIG. 1 is a schematic diagram of the present invention.

In the figure: 11. a cutting station; 12. a material changing station; 13. a material preparation station; 2. a spacer block; 21. a cutter groove; 31. a first cutter; 32. a first tool holder; 33. a first cylinder; 34. a first pinch roller; 35. a first wheel carrier; 36. a first driving cylinder; 37. a first fixed block; 38. a first material sticking wheel; 41. a second cutter; 42. a second tool holder; 43. a second cylinder; 44. a second pinch roller; 45. a second wheel carrier; 46. a second driving cylinder; 47. a second fixed block; 48. a second material sticking wheel; 50. a guide rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; 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 meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1, an automatic material changing device for a pole piece coil for a lithium battery includes a first material changing assembly and a second material changing assembly which are arranged oppositely, a cutting station 11, a material changing station 12 and a material preparing station 13 are sequentially arranged between the first material changing assembly and the second material changing assembly along a material tape feeding direction, the first material changing assembly includes a first cutter 31, a first clamping wheel 34 and a first adhesive wheel 38, the second material changing assembly includes a second cutter 41, a second clamping wheel 44 and a second adhesive wheel 48, a head of a new material tape is adhered and fixed on the first adhesive wheel 38 or the second adhesive wheel 48 of the material preparing station 13, the cutting station 11 cuts off a tail of the old material tape through the first cutter 31 or the second cutter 41, and the first clamping wheel 34 and the second clamping wheel 44 of the material changing station 12 clamp and fix the head of the new material tape and the tail of the old material tape.

The head of the new material belt is provided with an adhesive tape which is connected with the first adhesive wheel 38 or the second adhesive wheel 48 in a sticking way at the material preparing station 13 and is connected with the tail of the old material belt in a sticking way at the material changing station 12.

The cutting station 11 is provided with a spacer 2, the spacer 2 being provided with two guide surfaces, the two guide surfaces being located on respective sides of the spacer 2 facing the first 31 and second 41 cutters, the new and old tapes being located on respective outer sides of the two guide surfaces and being separated by the spacer 2, both guide surfaces being provided with a knife slot 21 cooperating with the cutting edge of the first 31 or the second 41 cutter.

The two guide surfaces are intersected to form a sharp angle of the spacing block 2, the sharp angle points to the feeding direction of the material belt, and the angle of the sharp angle is 30 degrees.

The first material changing assembly further comprises a first fixing block 37, a first cutter frame 32, a first air cylinder 33, a first wheel frame 35 and a first driving air cylinder 36, the first air cylinder 33 and the first driving air cylinder 36 are respectively fixed on the first fixing block 37, the first cutter 31 is connected with the first cutter frame 32, the first cutter frame 32 is connected with the driving end of the first air cylinder 33, the first clamping wheel 34 is connected with the first wheel frame 35, and the first wheel frame 35 is connected with the driving end of the first driving air cylinder 36.

The second reloading assembly further comprises a second fixing block 47, a second tool rest 42, a second air cylinder 43, a second wheel carrier 45 and a second driving air cylinder 46, the second air cylinder 43 and the second driving air cylinder 46 are respectively fixed on the second fixing block 47, the second cutter 41 is connected with the second tool rest 42, the second tool rest 42 is connected with the driving end of the second air cylinder 43, the second clamping wheel 44 is connected with the second wheel carrier 45, and the second wheel carrier 45 is connected with the driving end of the second driving air cylinder 46.

Guide rods 50 are arranged between the first fixing block 37 and the first knife rest 32, between the first fixing block 37 and the first wheel frame 35, between the second fixing block 47 and the second knife rest 42, and between the second fixing block 47 and the second wheel frame 45, and the guide rods 50 are connected with the first fixing block 37 or the second fixing block 47 in a sliding manner.

The first and second tack wheels 38, 48 are each provided with a toothed surface.

In the working process of the invention, the winder comprises two unwinding devices, one is an old material belt unwinding device which is unwinding, the other is a new material belt winding device which is manually placed, and the old material belt sequentially passes through each roller, the space between the second cutter 41 and the spacer block 2, the space between the first clamping wheel 34 and the second clamping wheel 44, and the space between the first bonding wheel 38 and the second bonding wheel 48 according to the feeding direction. One end of the adhesive tape for splicing is stuck to the head of the new material tape, the new material tape sequentially passes through each roller, the space between the first cutter 31 and the spacer block 2 and the space between the first clamping wheel 34 and the second clamping wheel 44 according to the feeding direction, then the head is stuck to the first adhesive wheel 38 through the adhesive tape, the head of the new material tape is wound on the first adhesive wheel 38 through forward rotation of the first adhesive wheel, the tooth surface of the first adhesive wheel is provided with damping, the adhesive tape can be stuck on the adhesive tape without being too tight, when the machine detects that the material tape needs to be automatically replaced, the old material tape unwinding device is stopped, the first clamping wheel 34 and the second clamping wheel 44 clamp the new and old material tape under the action of the first driving cylinder 36 and the second driving cylinder 46, and the first adhesive wheel and the new material tape unwinding device reversely rotate to enable the new material tape to return until the adhesive tape of the new head is stuck with the old material tape under the action of the first clamping wheel 34 and the second clamping wheel 44, then the second cutter 41 cuts off the residual part at the tail part of the old material belt, and the automatic replacement of the new and old material belts is completed.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.