阅读说明：本技术 一种接带不停机设备 (Splicing non-stop equipment ) 是由 李红星 吴玄皓 彭兴 刘斌 张刚强 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种接带不停机设备,包括：极片料卷、备用极片料卷、接带装置、缓存装置和焊接装置,缓存装置位于接带装置和焊接装置之间,极片料卷的牵引端依次通过接带装置、缓存装置和焊接装置,接带装置用于当极片料卷放完极片时,以将极片料卷的极片尾部与备用极片料卷的极片前部接合,缓存装置用于当极片料卷放完极片时,继续给焊接装置提供极片。在放极片的过程中,缓存装置内存储有一定长度的极片,当极片料卷上的极片放完时,缓存装置存储的极片可继续供给焊接装置,同时启动接带装置,以将极片料卷的极片尾部与备用极片料卷的极片前部接合,此时由备用极片料卷提供极片,由于在接片时无需停机,因此可提高生产效率。(The invention discloses a device for splicing a belt without stopping, which comprises: the welding device comprises a pole piece material roll, a spare pole piece material roll, a tape splicing device, a caching device and a welding device, wherein the caching device is positioned between the tape splicing device and the welding device, the traction end of the pole piece material roll sequentially passes through the tape splicing device, the caching device and the welding device, the tape splicing device is used for splicing the tail part of the pole piece material roll with the front part of the pole piece of the spare pole piece material roll when the pole piece material roll finishes unwinding the pole piece, and the caching device is used for continuously providing the pole piece for the welding device when the pole piece material roll finishes. In the process of pole piece placement, pole pieces with a certain length are stored in the buffer memory device, when the pole pieces on the pole piece material roll are placed completely, the pole pieces stored in the buffer memory device can be continuously supplied to the welding device, and meanwhile, the tape splicing device is started to joint the tail part of the pole piece material roll with the front part of the pole piece of the spare pole piece material roll.)

1. A splicing non-stop apparatus, comprising: the buffer device is positioned between the tape splicing device and the welding device, the traction end of the pole piece material roll sequentially passes through the tape splicing device, the buffer device and the welding device, the tape splicing device is used for jointing the tail part of the pole piece material roll with the front part of the pole piece of the spare pole piece material roll when the pole piece material roll finishes unwinding the pole piece, and the buffer device is used for continuously providing the pole piece for the welding device when the pole piece material roll finishes unwinding the pole piece.

2. The splicing non-stop device according to claim 1, wherein the buffer device comprises a moving buffer roller, a fixed buffer roller and a linear displacement driving device, and the linear displacement driving device is used for driving the moving buffer roller to move towards or away from the fixed buffer roller.

3. The apparatus as claimed in claim 2, wherein the apparatus comprises a plurality of said movable buffer rollers and a plurality of said fixed buffer rollers, and the leading end of said roll of pole pieces alternately passes by said fixed buffer rollers and said movable buffer rollers in sequence.

4. The apparatus according to claim 3, wherein the linear displacement driving device is a rodless cylinder, a sliding plate is provided on a sliding block of the rodless cylinder, and a plurality of the moving buffer rollers are fixed on the same sliding plate.

5. The splicing non-stop apparatus according to any one of claims 1 to 4, further comprising a clamping device disposed between said splicing device and said buffer device, said clamping device being configured to clamp said pole pieces when said pole pieces are completely wound.

6. A splicing non-stop apparatus according to claim 5, further comprising a drive roller for drawing said pole pieces into said welding device.

7. A splicing non-stop apparatus according to claim 1, further comprising a primary reel to which the head of said stock roll is secured.

Technical Field

The invention relates to the technical field of lithium battery production, in particular to a non-stop device for tape splicing.

Background

In the manufacturing process of the lithium battery, the discharging mechanisms of the positive and negative pole pieces of the automatic winding machine discharge the material rolls, and the positive and negative pole pieces are finally wound into the battery cell through the procedures of tab welding, protective tape sticking, manipulator feeding, winding head winding and the like. The positive and negative pole piece discharging mechanisms are respectively provided with two hanging shafts, one hanging shaft is provided with a pole piece material roll which is in use, and the other hanging shaft is provided with a spare pole piece material roll.

In the prior art, when the pole piece material roll used by the winding machine is used up, the whole machine needs to be stopped, the automatic tape splicing device is started, the tail part of the pole piece in use and the head part of the spare pole piece material roll are bonded together by using an adhesive tape, and then the whole machine is restarted to continuously roll the battery cell. Because the tape splicing process needs to be stopped, the production efficiency is reduced.

Therefore, how to provide a device without stopping the belt splicing so as to improve the production efficiency is a technical problem which needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide equipment for splicing a belt without stopping, which can effectively improve the production efficiency.

In order to solve the technical problems, the invention provides the following technical scheme:

a splicing non-stop apparatus comprising: the buffer device is positioned between the tape splicing device and the welding device, the traction end of the pole piece material roll sequentially passes through the tape splicing device, the buffer device and the welding device, the tape splicing device is used for jointing the tail part of the pole piece material roll with the front part of the pole piece of the spare pole piece material roll when the pole piece material roll finishes unwinding the pole piece, and the buffer device is used for continuously providing the pole piece for the welding device when the pole piece material roll finishes unwinding the pole piece.

Preferably, the buffer device comprises a movable buffer roller, a fixed buffer roller and a linear displacement driving device, and the linear displacement driving device is used for driving the movable buffer roller to move towards or away from the fixed buffer roller.

Preferably, the pole piece material roll comprises a plurality of movable buffer passing rollers and a plurality of fixed buffer passing rollers, and the traction end of the pole piece material roll sequentially and alternately bypasses the fixed buffer passing rollers and the movable buffer passing rollers.

Preferably, the linear displacement driving device is a rodless cylinder, a sliding plate is arranged on a sliding block of the rodless cylinder, and the plurality of mobile buffer passing rollers are fixed on the same sliding plate.

Preferably, the pole piece winding device further comprises a clamping device arranged between the belt splicing device and the buffer device, and the clamping device is used for clamping the pole piece when the pole piece is completely wound on the pole piece.

Preferably, the welding device further comprises a driving roller for drawing the pole piece into the welding device.

Preferably, the pole piece winding machine further comprises a first winding shaft, and the head part of the standby pole piece winding roll is fixed on the first winding shaft.

Compared with the prior art, the technical scheme has the following advantages:

the invention provides a device for splicing a belt without stopping, which comprises: the welding device comprises a pole piece material roll, a spare pole piece material roll, a tape splicing device, a caching device and a welding device, wherein the caching device is positioned between the tape splicing device and the welding device, the traction end of the pole piece material roll sequentially passes through the tape splicing device, the caching device and the welding device, the tape splicing device is used for splicing the tail part of the pole piece material roll with the front part of the pole piece of the spare pole piece material roll when the pole piece material roll finishes unwinding the pole piece, and the caching device is used for continuously providing the pole piece for the welding device when the pole piece material roll finishes. In the process of pole piece placement, pole pieces with a certain length are stored in the buffer memory device, when the pole pieces on the pole piece material roll are placed completely, the pole pieces stored in the buffer memory device can be continuously supplied to the welding device, and meanwhile, the tape splicing device is started to joint the tail part of the pole piece material roll with the front part of the pole piece of the spare pole piece material roll.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic layout structure diagram of a splicing non-stop device according to an embodiment of the present invention.

The reference numbers are as follows:

the device comprises a pole piece material roll 1, a spare pole piece material roll 2, a pole piece 3, a head of the spare pole piece material roll 4, a roller 5, a tape splicing device 6, a first reel 7, a tape splicing roller 8, a clamping device 9, a rodless cylinder 10, a sliding plate 11, a mobile buffer memory roller 12, a welding device 13, a driving roller 14 and a fixed buffer memory roller 15.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1, fig. 1 is a schematic layout structure diagram of a splicing non-stop apparatus according to an embodiment of the present invention.

One embodiment of the present invention provides a splicing non-stop apparatus, comprising: the pole piece material roll 1, the spare pole piece material roll 2, the tape splicing device 6, the buffer device and the welding device 13, the buffer device is positioned between the tape splicing device 6 and the welding device 13, and specifically comprises a driving roller 14, the pole piece material roll 1 is placed on a hanging shaft of a winding machine, the spare pole piece material roll 2 is placed on an idle hanging shaft of the winding machine, the head 4 of the spare pole piece material roll is fixed on a head reel 7 by bypassing a tape passing roller 8, a servo motor driving the head reel 7 rotates for a certain angle to tighten a drawn pole piece, the drawing end of the pole piece 3 of the pole piece material roll 1 is drawn by the driving roller 14, so that the unwinding operation is realized, the direction of the pole piece 3 can be realized by the passing roller 5, the pole piece 3 with a certain length is stored in the buffer device in the process of unwinding the pole piece 3, when the pole piece 3 on the pole piece material roll 1 is unwound, the pole piece 3 stored in, and simultaneously starting the tape splicing device 6 to joint the tail part of the pole piece material roll 1 with the front part of the pole piece of the spare pole piece material roll 2, wherein the spare pole piece material roll 2 provides the pole piece 3, and the production efficiency can be improved because the machine does not need to be stopped during splicing.

Specifically, the buffer device comprises a movable buffer roller 12, a fixed buffer roller 15 and a linear displacement driving device, wherein the linear displacement driving device is used for driving the movable buffer roller 12 to move towards or away from the fixed buffer roller 15, when the movable buffer roller 12 moves towards the direction of the fixed roller, the stored pole pieces are released, and when the movable buffer roller 12 moves away from the direction of the fixed roller, the pole pieces are stored in the buffer device. The quantity of pole pieces stored in the buffer device depends on the distance between the fixed buffer roller 15 and the movable buffer roller 12, when the distance is large, the storage quantity is large, and when the distance is small, the storage quantity is small. In addition, a plurality of movable buffer cache rollers 12 and a plurality of fixed buffer cache rollers 15 can be arranged to improve the storage capacity of the pole pieces, and the traction end of the pole piece material roll 1 sequentially and alternately bypasses the fixed buffer cache rollers 15 and the movable buffer cache rollers 12, namely the pole pieces sequentially bypass the fixed buffer cache rollers 15 and the movable buffer cache rollers 12 in an S-shaped track.

Specifically, the linear displacement driving device is preferably a rodless cylinder 10, the right side of the rodless cylinder 10 is an air inlet side, and a pressure reducing valve is adopted to control the air pressure of the air inlet side, so that the required pole piece tension force is obtained, a sliding plate 11 is arranged on a sliding block of the rodless cylinder 10, and a plurality of mobile buffer passing rollers 12 are fixed on the same sliding plate 11, namely, the same power device drives the plurality of mobile buffer passing rollers 12 to move, so that the moving synchronization of the mobile buffer passing rollers 12 can be ensured.

Further, the device comprises a clamping device 9 arranged between the belt splicing device 6 and the buffer device, wherein the clamping device 9 is preferably provided with two clamping cylinders at two sides of the pole piece, when the pole piece 3 is completely discharged from the pole piece material roll 1, the pole piece 3 is clamped by the clamping device, then the belt splicing operation is carried out through the belt splicing device 6, and when the pole piece 3 is compressed, the buffer device continues to provide the pole piece 3 for the welding device 13.

The working process of the belt splicing non-stop equipment provided by the invention is as follows:

a: when the running pole piece material roll 1 is to be placed completely, the two clamping cylinders extend out simultaneously to clamp the pole piece 3;

b: starting the tape splicing device 6, cutting off the pole piece 3 in use and the spare pole piece simultaneously, and bonding the tail part of the pole piece in use and the front part of the spare material roll pole piece by using an adhesive tape to realize splicing of the pole piece 3 in use and the spare material roll pole piece;

c: the driving roller 14 drives the pole piece 3 to continuously feed the buffered pole piece in the buffer device into the welding device 13 according to the original beat, the step and the step b are carried out simultaneously, and the time of the buffered pole piece in the buffer device for the welding beat of the welding device 13 is longer than the time of pole piece tape splicing;

d: after the step b is finished, the clamping cylinder retracts to loosen the pole piece, the servo motor of the standby pole piece material roll 2 is driven to operate and discharge materials in an accelerating mode, the movable buffer cache over-roller 12 on the buffer memory device moves towards the direction departing from the fixed buffer cache over-roller 15, and the buffer memory device is filled with the pole piece 3;

e: when the moving buffer in the buffer device runs to the initial position leftwards through the roller 12, the servo motor driving the spare pole piece material roll 2 is recovered to the speed required by the winding of the equipment, and the pole piece material roll is discharged.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.