CN111924606A

CN111924606A - Tape splicing device and lamination equipment

Info

Publication number: CN111924606A
Application number: CN202010776669.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2020-11-13
Anticipated expiration: 2040-08-05
Also published as: CN111924606B

Abstract

The invention relates to a tape splicing device and lamination equipment. The tape splicing device comprises a fixed seat, a first tape splicing assembly and a second tape splicing assembly, wherein the first tape splicing assembly and the second tape splicing assembly can be connected to the fixed seat in a close or far manner, and an output channel for a membrane to pass through is formed between the first tape splicing assembly and the second tape splicing assembly; the first tape splicing assembly comprises a first adsorption surface and a first cutter mechanism for cutting off a film material adsorbed on the first adsorption surface, and the second tape splicing assembly comprises a second adsorption surface; the tape splicing device comprises a first tape splicing state, when the tape splicing device is in the first tape splicing state, the first adsorption surface adsorbs a film material passing through the output channel, the first cutter mechanism cuts off the film material adsorbed on the first adsorption surface, the second adsorption surface is used for adsorbing an adhesive tape attached with a standby film material, and in the process that the first tape splicing assembly and the second tape splicing assembly are close to each other, the cut-off end of the film material on the first adsorption surface is adhered to the adhesive tape on the second adsorption surface.

Description

Tape splicing device and lamination equipment

Technical Field

The invention relates to the technical field of film material unreeling, in particular to a tape splicing device and lamination equipment.

Background

Unwinding of the output membrane is often required during battery manufacturing, for example, during the fabrication of cells using Z-lamination. When the roll of film material is exhausted, a roll change is required. The existing roll change process is as follows: the film material being used is cut off and replaced with a new roll of film material, and then the leading end of the new roll of film material is connected to the trailing end of the film material being used by an adhesive tape, thereby completing the roll replacement. However, the existing roll changing process is completed manually, namely, the film material needs to be cut manually and the tape is connected by using an adhesive tape, so that the defects of low automation degree, low roll changing efficiency, unstable roll changing quality and the like exist.

Disclosure of Invention

Therefore, it is necessary to provide a splicing device and a lamination device for improving the above defects, aiming at the problems of low automation degree, low reel changing efficiency and unstable reel changing quality caused by manual completion of the reel changing process in the prior art.

A tape splicing device comprises a fixed seat, a first tape splicing assembly and a second tape splicing assembly, wherein the first tape splicing assembly and the second tape splicing assembly are connected to the fixed seat in a manner of being capable of approaching to or separating from each other;

the first tape splicing assembly comprises a first adsorption surface and a first cutter mechanism for cutting off a film adsorbed on the first adsorption surface, and the second tape splicing assembly comprises a second adsorption surface;

the tape splicing device comprises a first tape splicing state, when the tape splicing device is in the first tape splicing state, the first adsorption surface adsorbs a film material passing through the output channel, the first cutter mechanism cuts off the film material adsorbed on the first adsorption surface, the second adsorption surface is used for adsorbing a standby film material, and the cut end of the film material on the first adsorption surface is adhered to the standby film material on the second adsorption surface in the process that the first tape splicing assembly and the second tape splicing assembly are close to each other.

In one embodiment, the second tape splicing assembly further comprises a second cutter mechanism for cutting off the film adsorbed on the second adsorption surface;

the tape splicing device further comprises a second tape splicing state, when the tape splicing device is in the second tape splicing state, the second adsorption surface adsorbs the film material passing through the output channel, the second cutter mechanism cuts off the film material adsorbed on the second adsorption surface, the first adsorption surface is used for adsorbing the standby film material, and the cut end of the film material on the second adsorption surface is adhered to the standby film material on the first adsorption surface in the process that the first tape splicing assembly and the second tape splicing assembly are close to each other.

In one embodiment, the first belt connecting component comprises a first mounting seat and a first suction piece with the first suction surface as a side surface; the first mounting seat is arranged on the fixing seat, the first suction attachment is pivotally connected to the first mounting seat, and the first suction attachment comprises a first position where the first suction surface faces the second tape splicing assembly and a second position where the first suction surface is used for sucking standby membrane materials in the rotating process.

In one embodiment, the second tape splicing assembly comprises a second mounting seat and a second adsorption piece with the second adsorption surface as a side surface; the second mount pad set up in the fixing base, the second adsorb a pivot connection in the second mount pad the second adsorbs the surface orientation including the second adsorbs the pivoted in-process of piece the third position of first taping subassembly and the fourth position that is used for adsorbing reserve membrane material.

In one embodiment, the first mounting seat and the second mounting seat are arranged along a first direction, and the first mounting seat and the second mounting seat are respectively movable relative to the fixing seat along the first direction to drive the first suction piece and the second suction piece to approach or move away from each other.

In one embodiment, the first splicing assembly further comprises a first driving member mounted on the fixed seat, and the first driving member is in transmission connection with the first mounting seat to drive the first mounting seat to move along the first direction;

the second tape splicing assembly further comprises a second driving piece mounted on the fixed seat, and the second driving piece is in transmission connection with the second mounting seat so as to drive the second mounting seat to move along the first direction.

In one embodiment, the first suction attachment has a first abutment surface defining a first cutter-avoidance groove;

when the first suction piece is located at the second position, the first abutting surface faces the second adsorption piece, so that in the process that the first suction piece and the second adsorption piece located at the third position are close to each other, the second adsorption surface abuts and presses the film material in the output channel to the first abutting surface, and the second cutter mechanism is matched with the first cutter avoiding groove to cut off the film material.

In one embodiment, the second adsorption part is provided with a second abutting surface, and the second abutting surface is provided with a second cutter avoiding groove;

when the second adsorption piece is located at the fourth position, the second abutting surface faces the first adsorption piece, so that in the process that the second adsorption piece and the first adsorption piece located at the first position are close to each other, the first adsorption surface abuts against and presses the film material in the output channel to the second abutting surface, and the first cutter mechanism is matched with the second cutter avoiding groove to cut off the film material.

In one embodiment, the first belt connecting assembly further comprises a third driving member, the third driving member comprises a first mounting end and a first telescopic end which is telescopic relative to the first mounting end, the first mounting end is pivotally connected to the fixing base, and the first telescopic end is hinged to the first suction attachment so as to drive the first suction attachment to rotate relative to the fixing base when the first telescopic end is telescopic relative to the first mounting end;

the second connects takes subassembly still includes the fourth driver, the fourth driver includes the second installation end and relative the flexible end of second stiff end telescopic second, the second installation end pivot connect in the fixing base, just the flexible end of second hinge joint connect in the second adsorbs the piece, so that the flexible end of second is relative drive when the second installation end is flexible the second adsorbs the piece relatively the fixing base rotates.

A lamination apparatus comprising a splicing device as described in any one of the embodiments above.

According to the tape splicing device and the lamination device, when the working film material is unreeled and needs to be changed, the first adsorption surface adsorbs the working film material passing through the output channel. The second adsorption surface adsorbs the starting end of the standby membrane material. Then, the first cutter mechanism cuts off the film material adsorbed on the first adsorption surface, at the moment, the working film material positioned on the upstream section of the output channel can be wound, and the cutting end of the working film material positioned on the downstream section of the output channel is continuously adsorbed on the first adsorption surface. Then, the first tape splicing assembly and the second tape splicing assembly are close to each other, so that the cutting end of the working film material on the first adsorption surface is adhered to the standby film material on the second adsorption surface, the cutting end of the working film material is connected with the starting end of the standby film material, and the standby film material can be unreeled through the output channel and output to the downstream. Therefore, the tape splicing device can complete automatic tape splicing so as to realize reel change, and has the advantages of high automation degree, high reel change efficiency and stable reel change quality.

Drawings

FIG. 1 is a schematic structural view of a splicing apparatus according to an embodiment of the present invention;

FIG. 2 is a front view of a first splicing assembly and a second splicing assembly of the splicing apparatus shown in FIG. 1;

FIG. 3 is a right side view of the first and second splicing assemblies shown in FIG. 2;

FIG. 4 is a schematic view of the belt splicing apparatus shown in FIG. 1;

FIG. 5 is a right side view of the first and second splicing assemblies of the splicing apparatus shown in FIG. 4;

fig. 6 is a schematic structural view of a first splicing assembly of the splicing apparatus shown in fig. 1.

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, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

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; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 4, a tape splicing device according to an embodiment of the present invention is used for unwinding an output film material downstream, and cutting and connecting a working film material to a standby film material when unwinding of the working film material is completed, so as to continuously unwind the output film material and achieve continuous unwinding. The belt connecting device comprises a fixed seat 10 and a first belt connecting component 20 and a second belt connecting component 30 which can be connected to the fixed seat 10 in a approaching or separating mode. An output channel A for the membrane to pass through is formed between the first tape splicing assembly 20 and the second tape splicing assembly 30. That is, the film is discharged downstream from the discharge passage a.

The first tape connecting unit 20 includes a first adsorption surface 211 and a first cutter mechanism (not shown) for cutting off a film adsorbed on the first adsorption surface 211, and the second tape connecting unit 30 includes a second adsorption surface 311. The splicing device comprises a first splicing state (shown in figures 1 and 4). When the tape splicing device is in the first tape splicing state, the first adsorption surface 211 adsorbs a film material (i.e., a working film material) passing through the output channel a, the first cutter mechanism cuts off the film material adsorbed on the first adsorption surface 211, the second adsorption surface 311 is used for adsorbing a standby film material, and in the process that the first tape splicing assembly 20 and the second tape splicing assembly 30 are close to each other, the cut-off end of the film material on the first adsorption surface 211 is adhered to the standby film material on the second adsorption surface 311, so that the working film material and the standby film material are connected.

According to the tape splicing device, when the working film material needs to be changed after unreeling is completed, the first adsorption surface 211 adsorbs the working film material passing through the output channel A. The second adsorption surface 311 adsorbs the leading end of the spare film material. Then, the first cutter mechanism cuts the film material adsorbed on the first adsorption surface 211, at this time, the working film material located at the upstream section of the output channel a can be wound, and the cut end of the working film material located at the downstream section of the output channel a continues to be adsorbed on the first adsorption surface 211. Then, the first tape splicing assembly 20 and the second tape splicing assembly 30 are close to each other, so that the cut end of the working film material on the first adsorption surface 211 is adhered to the standby film material on the second adsorption surface 311, and the cut end of the working film material is connected with the start end of the standby film material, so that the standby film material can be unreeled and output to the downstream through the output channel a. Therefore, the tape splicing device can complete automatic tape splicing so as to realize reel change, and has the advantages of high automation degree, high reel change efficiency and stable reel change quality.

The working film means a film that is output from the output channel a to the downstream. The standby film material is used for performing roll change after the working film material is completely unreeled, so that the working film material before being replaced is output to the downstream film material from the output channel A. That is, the film material being unwound and output from the output path a toward the downstream is a working film material, and the film material to be replaced with the previous tooling film material by roll change is a standby film material. Therefore, the standby film material before the roll change becomes the working film material after the roll change.

It should be noted that, in one embodiment, the leading end of the standby film is adhered with the adhesive tape a, and the adhesive tape a is adsorbed on the second adsorption surface 311, so that when the first tape splicing assembly 20 and the second tape splicing assembly 30 are close to each other, the cut end of the working film of the first adsorption surface 211 is adhered to the adhesive tape a on the second adsorption surface 311, and thus the cut end of the working film and the leading end of the standby film are connected by the adhesive tape a.

It should be further noted that the film may be a diaphragm used for laminating to form a battery cell, and of course, in other embodiments, the film may also be another type of film, which is not limited herein. In the embodiment of the present invention, the second splicing assembly 30 further includes a second cutter mechanism for cutting off the suction to the second suction surface 311. The splicing device further comprises a second splicing state.

When the splicing device is in the second splicing state, the second adsorption surface 311 adsorbs the film material passing through the output passage a. The second cutter mechanism cuts off the film material adsorbed on the second adsorption surface 311. The first adsorption surface 211 is used for adsorbing a standby film material. In the process of the first tape splicing assembly 20 and the second tape splicing assembly 30 approaching each other, the cut end of the film on the second suction surface 311 is stuck to the spare film on the first suction surface 211. Therefore, when the tape splicing device is in the first tape splicing state and the roll change is finished, the film material is continuously output to the downstream through the output channel A. When the unwinding of the film material is completed and the roll needs to be changed again, the tape splicing device is switched to the second tape splicing state, and the first adsorption surface 211 adsorbs the standby film material. First, the second adsorption surface 311 adsorbs the film (i.e., the working film) passing through the output passage a, and the second cutter mechanism cuts off the working film adsorbed on the second adsorption surface 311. At this time, the working film material located at the upstream section of the output channel a can be wound, and the cut end of the working film material located at the downstream section of the output channel a is continuously adsorbed on the second adsorption surface 311. Then, the first tape splicing assembly 20 and the second tape splicing assembly 30 approach each other until the cut end of the working film material on the second adsorption surface 311 is adhered to the standby film material on the first adsorption surface 211, so that the cut end of the working film material is connected with the start end of the standby film material, and the standby film material is continuously unreeled and output to the downstream through the output channel a.

It will be appreciated that after the change of a reel has been completed with the splicing apparatus in the first splicing position, the splicing apparatus can be switched to the second splicing position in preparation for a further change of reel. That is, the splicing device can be alternately switched between the first splicing state and the second splicing state to realize multiple roll changes.

It should be noted that, in one embodiment, the leading end of the standby film is adhered with an adhesive tape a, and the adhesive tape a is adsorbed on the first adsorption surface 211, so that when the first tape splicing assembly 20 and the second tape splicing assembly 30 are close to each other, the cut end of the working film of the second adsorption surface 311 is adhered to the adhesive tape a on the first adsorption surface 211, and thus the cut end of the working film and the leading end of the standby film are connected by the adhesive tape a.

In one embodiment, the first belt assembly 20 includes a first mounting seat 22 and a first suction member 21 with a first suction surface 211 as a side surface. The first mounting seat 22 is disposed on the fixing seat 10, and the first suction attachment 21 is pivotally connected to the first mounting seat 22. The first suction attachment 21 includes a first position (see fig. 1 and 2) in which the first suction surface 211 faces the second tape attachment 30 during rotation, and a second position for sucking the adhesive tape a (in the embodiment shown in fig. 1 and 2, the first suction surface 211 of the first suction attachment 21 faces the right side when the first suction attachment 21 is in the second position).

In this way, when the tape splicing device is in the first tape splicing state, the first suction attachment 21 is rotated to the first position so that the first suction surface 211 of the first suction attachment 21 faces the second tape splicing assembly 30, so that the first suction surface 211 sucks the film material passing through the output passage a between the first tape splicing assembly 20 and the second tape splicing assembly 30. When the tape splicing apparatus is in the second splicing state, the first suction attachment 21 can suck the standby film (i.e., the tape a) at the second position by using the first suction surface 211 and rotate to the first position, at which the first suction surface 211 faces the second splicing module 30, so as to stick the cut end of the working film to the standby film (i.e., the tape a) of the first suction surface 211.

Alternatively, the first suction member 21 has a first inner chamber (not shown) connectable to an external negative pressure device, and the first suction surface 211 has a plurality of first suction holes communicating with the first inner chamber. So, utilize outside negative pressure equipment to form the negative pressure at first inner chamber to adsorb membrane material or sticky tape a through first absorption hole.

Specifically, in the embodiment, the second tape splicing assembly 30 includes a second mounting seat 32 and a second suction member 31 having a second suction surface 311 as a side surface. The second mounting seat 32 is disposed on the fixing seat 10, and the second suction member 31 is pivotally connected to the second mounting seat 32. The process of rotating the second suction member 31 includes a third position where the second suction surface 311 faces the first splicing assembly 20 (in the embodiment shown in fig. 1 and 2, when the second suction member 31 is at the third position, the second suction surface 311 of the second suction member 31 faces upward), and a fourth position (see fig. 1 and 2) for sucking the spare film (i.e., the adhesive tape a).

Thus, when the tape splicing device is in the first tape splicing state, the second adsorption member 31 can adsorb the standby film material at the fourth position by using the second adsorption surface 311 and rotate to the third position, at this time, the second adsorption surface 311 faces the first tape splicing assembly 20, so as to stick the cut end of the working film material on the standby film material (i.e., the adhesive tape a) of the second adsorption surface 311. When the splicing device is in the second splicing state, the second adsorption member 31 rotates to the third position, so that the second adsorption surface 311 of the second adsorption member 31 faces the first splicing assembly 20, so that the second adsorption surface 311 adsorbs the working film material passing through the output passage a between the first splicing assembly 20 and the second splicing assembly 30.

Alternatively, the second suction member 31 has a second inner cavity (not shown) connectable to an external negative pressure device, and the second suction surface 311 has a plurality of second suction holes 312 communicating with the second inner cavity. Thus, negative pressure is formed in the second inner cavity by using an external negative pressure device, so that the working film or the standby film (i.e., the adhesive tape a) is adsorbed through the second adsorption hole 312.

Specifically, in the embodiment, the first mounting seat 22 and the second mounting seat 32 are disposed along a first direction, and the first mounting seat 22 and the second mounting seat 32 are respectively movable along the first direction relative to the fixing seat 10 to drive the first absorbing part 21 and the second absorbing part 31 to approach or move away from each other. In this way, the first and second mounting

seats

22 and 32 can be controlled to move in the first direction, so as to drive the first and

second suction members

21 and 31 to approach each other, so as to stick the cut end of the working film material to the spare film material (i.e. the adhesive tape a) on the first suction surface 211 of the first suction member 21 or the spare film material (i.e. the adhesive tape a) on the second suction surface 311 of the second suction member 31.

Further, the first splicing tape assembly 20 further includes a first driving member 23 mounted on the fixing base 10, and the first driving member 23 is in transmission connection with the first mounting base 22 to drive the first mounting base 22 to move along the first direction. Alternatively, the first driving member 23 may be a cylinder. More specifically, the first mounting seat 22 may be assembled to the fixing seat 10 through a slide rail and slider structure.

Further, the second belt connecting assembly 30 further includes a second driving member 33 mounted on the fixing base 10, and the second driving member 33 is in transmission connection with the second mounting base 32 to drive the second mounting base 32 to move along the first direction. Alternatively, the second driver 33 may be a cylinder. More specifically, the second mounting seat 32 may also be assembled to the fixing seat 10 through a slide rail and slider structure.

Referring to fig. 6, in the embodiment, the first suction member 21 has a first abutting surface 213, and the first abutting surface 213 defines a first cutter-avoiding groove 212.

When the first suction member 21 is located at the second position, the first abutting surface 213 faces the second suction member 31, so that the first suction member 21 and the second suction member 31 located at the third position are close to each other until the second suction surface 311 of the second suction member 31 abuts against the working film material in the suction channel to the first abutting surface 213, so that the working film material is sucked by the second suction surface 311, and the film material is cut off by the second cutter mechanism matching with the first cutter avoiding groove 212.

Further, the second cutter mechanism includes a second cutter (not shown) and a second cutter driving member (not shown). The second suction member 31 has a second cutting hole 313 penetrating the second suction surface 311, and the second cutter can extend out of the second suction surface 311 along the second cutting hole 313, thereby cutting off the film material sucked to the second suction surface 311. The second cutter driving member is mounted on the second suction member 31 and is in transmission connection with the second cutter to drive the second cutter to move along the second cutting hole 313. More specifically, the second cutter hole is disposed corresponding to the first cutter escape groove 212, so that the second cutter extends out of the second adsorption surface 311 and then enters the first cutter escape groove 212, thereby preventing the second cutter from being damaged due to contact with the first adsorption member 21. Alternatively, the second cutter drive may be a pneumatic cylinder.

Specifically, in the embodiment, the second absorbing member 31 has a second abutting surface (not shown), and the second abutting surface is provided with a second cutter avoiding groove. When the second absorbing member 31 is located at the fourth position, the second abutting surface faces the first absorbing member 21, so that in the process that the second absorbing member 31 and the first absorbing member 21 located at the first position approach each other, the first absorbing surface 211 abuts against the film material in the output channel to the second abutting surface, so that the first absorbing surface 211 absorbs the film material, and the first cutting mechanism cooperates with the second cutting knife to avoid the groove to cut off the film material.

Further, the first cutter mechanism comprises a first cutter and a first cutter driving member. The first suction tool 21 has a first cutting hole penetrating the first suction surface 211, and the first cutting tool can extend out of the first suction surface 211 along the first cutting hole to cut the film material sucked on the first suction surface 211. The first cutter driving member is mounted on the first suction member 21 and is in driving connection with the first cutter to drive the first cutter to move along the first cutting hole. More specifically, the first cutter hole and the second cutter avoiding groove are correspondingly arranged, so that the first cutter extends out of the first adsorption surface 211 and then enters the second cutter avoiding groove, and the first cutter is prevented from being damaged due to contact with the second adsorption piece 31. Alternatively, the first cutter drive member may be a cylinder.

Referring to fig. 1 to 5, in an embodiment of the invention, the first belt connecting assembly 20 further includes a third driving element 24, and the third driving element 24 is used for driving the first suction attachment 21 to rotate relative to the fixing base 10.

In one embodiment, the third driving member 24 includes a first mounting end (not shown) and a first telescopic end 241 retractable relative to the first mounting end. The first mounting end is pivotally connected to the fixing base 10, and the first telescopic end 241 is pivotally connected to the first suction attachment 21, so as to drive the first suction attachment 21 to rotate relative to the fixing base 10 when the first telescopic end 241 is telescopic relative to the first mounting end. Alternatively, the third driver 24 may be a cylinder.

It should be noted that, when the first mounting seat 22 drives the first suction attachment 21 to move along the first direction, the first mounting end of the third driving member 24 can adaptively rotate, so as to avoid affecting the movement of the first mounting seat 22 and the first suction attachment 21 along the first direction.

Further, the first suction attachment 21 is pivotally connected to the first mounting seat 22 by a first pivot shaft 25, and the first mounting end is pivotally connected to the fixing seat 10 by a second pivot shaft (not shown). The axes of the first pivot axle 25 and the second pivot axle are both parallel to the second direction, and the second direction is perpendicular to the first direction. In the embodiment shown in fig. 3, the first direction is an up-down direction and the second direction is a left-right direction.

In the embodiment of the present invention, the second splicing assembly 30 further includes a fourth driving component 33, and the fourth driving component 33 is configured to drive the second absorbing component 31 to rotate relative to the fixed base 10.

In one embodiment, the fourth driving member 33 includes a second mounting end and a second telescopic end 341 retractable relative to the second mounting end. The second mounting end is pivotally connected to the fixing base 10, and the second retractable end 341 is pivotally connected to the second absorbing member 31, so as to drive the second absorbing member 31 to rotate relative to the fixing base 10 when the second retractable end 341 is retracted relative to the second mounting end. Alternatively, the fourth driving member 33 may be a cylinder.

It should be noted that, when the second mounting seat 32 drives the second absorbing member 31 to move along the first direction, the second mounting end of the fourth driving member 33 can rotate adaptively, so as to avoid affecting the movement of the second mounting seat 32 and the second absorbing member 31 along the first direction.

Further, the second suction member 31 is pivotally connected to the second mounting seat 32 by a third pivot shaft 35, and the second mounting end is pivotally connected to the fixing seat 10 by a fourth pivot shaft. Wherein the axis of the third pivot shaft 35 and the axis of the fourth pivot shaft are both parallel to the second direction.

In the embodiment of the present invention, the splicing device further includes a first unwinding mechanism 40 and a first passing roller 50. The first unwinding mechanism 40 is disposed on an upstream side of the output passage a, and is configured to convey the film material to the output passage a. The first roller 50 is installed on the first suction device 21 to guide the film unwound and output by the first unwinding mechanism 40 to the output channel a when the first suction device 21 is at the first position. Further, the first pass roller 50 is mounted to the first suction member 21 by a first pass roller 50 mounting plate.

In the embodiment of the present invention, the splicing device further includes a second unwinding mechanism 60 and a second passing roller 70. The second unwinding mechanism 60 is disposed on the upstream side of the output passage a, and is configured to convey the film material to the output passage a. The second roller 70 is mounted on the second suction member 31 to guide the film unwound and output by the second unwinding mechanism 60 to the output channel a when the second suction member 31 is at the third position. Further, the second pass roller 70 is mounted to the second suction member 31 by a second pass roller 70 mounting plate.

The operation of the tape device is described below with reference to the accompanying drawings:

referring to fig. 1 to 5, the splicing device is in a first splicing state: when the first suction attachment 21 rotates to the first position (i.e. the first suction surface 211 faces downward), the film unwound and output by the first unwinding mechanism 40 enters the output channel a under the guidance of the first roller 50, and is conveyed downstream through the output channel a; the second adsorption member 31 is located at the fourth position (i.e. the second adsorption surface 311 faces to the right), and the adhesive tape a can be manually attached to the second adsorption surface 311 of the second adsorption member 31 (the adhesive tape a is adsorbed by the second adsorption surface 311), and the leading end of the standby film unwound and output by the second unwinding mechanism 60 is attached to the adhesive tape a (at this time, the leading end of the standby film only occupies a partial area of the adhesive tape a, that is, a partial area is reserved, so that the cut end of the film of the subsequent first adsorption surface 211 is attached to the reserved partial area);

when the unwinding of the first unwinding mechanism 40 is completed, the first absorbing member 21 moves toward the second absorbing member 31, so that the first absorbing surface 211 of the first absorbing member 21 absorbs the film material and presses the film material against the second abutting surface, the first cutter mechanism cuts off the film material on the first absorbing surface 211, and the first unwinding mechanism 40 winds up the cut film material. At this time, the cut end of the film material located at the downstream stage of the discharge passage a remains adsorbed on the first adsorption surface 211. The first suction member 21 is moved away from the second suction member 31 to be reset;

the second absorbing member 31 rotates from the fourth position to the third position (the second absorbing surface 311 faces upward), such that the second absorbing surface 311 is opposite to the first absorbing surface 211 (it should be noted that, before the second absorbing member 31 rotates from the fourth position to the third position, the second unwinding mechanism 60 may be controlled to unwind and output a section of standby film material, so as to prevent the standby film material from being tensioned and separated from the second absorbing surface 311 when the second absorbing member 31 rotates from the fourth position to the third position). The first suction member 21 and the second suction member 31 are close to each other until the cut end of the film on the first suction surface 211 is stuck to the tape a of the second suction surface 311, so that the cut end of the film and the leading end of the spare film are connected by the tape a. The first suction member 21 and the second suction member 31 are away from each other and reset, and the standby film unwound and output by the second unwinding mechanism 60 enters the output channel a under the guidance of the second roller 70 and is conveyed downstream through the output channel a. At this time, the standby film may be loaded on the first unwinding mechanism 40 to prepare for the next unwinding.

The belt splicing device is switched to a second belt splicing state: the first absorbing part 21 rotates to the second position (that is, the first absorbing surface 211 faces to the right), the adhesive tape a can be manually attached to the first absorbing surface 211 of the first absorbing part 21 (the adhesive tape a is absorbed by the first absorbing surface 211), and the leading end of the standby film unreeled and output by the first unreeling mechanism 40 is attached to the adhesive tape a (at this time, the leading end of the standby film only occupies a partial area of the adhesive tape a, that is, a partial area is reserved, so that the cut end of the film of the subsequent second absorbing surface 311 is attached to the reserved partial area);

when the second unwinding mechanism 60 finishes unwinding, the second adsorption part 31 moves towards the first adsorption part 21, so that the second adsorption surface 311 of the second adsorption part 31 adsorbs the film material and supports and presses the film material to the first support surface, the second cutter mechanism cuts off the film material on the second adsorption surface 311, and the second unwinding mechanism 60 winds up the cut film material. At this time, the cut end of the film material located at the downstream stage of the output passage a remains adsorbed on the second adsorption surface 311. The second suction member 31 is moved away from the first suction member 21 to be reset;

the first suction element 21 rotates from the second position to the first position (i.e. the first suction surface 211 faces downward), such that the first suction surface 211 is opposite to the second suction surface 311 (it should be noted that, before the first suction element 21 rotates from the second position to the first position, the first unwinding mechanism 40 may be controlled to unwind and output a section of the standby film, so as to prevent the standby film from being tensioned and being disengaged from the first suction surface 211 when the first suction element 21 rotates from the second position to the first position). The first suction member 21 and the second suction member 31 approach each other until the cut end of the film on the second suction surface 311 is stuck on the tape a of the first suction surface 211, so that the cut end of the film and the leading end of the spare film are connected by the tape a. The first suction member 21 and the second suction member 31 are away from each other and reset, and the standby film unwound and output by the first unwinding mechanism 40 enters the output channel a under the guidance of the first roller 50 and is conveyed downstream through the output channel a. At this time, the standby film may be loaded on the second unwinding mechanism 60 to prepare for the next unwinding.

Based on the tape splicing device, the invention further provides lamination equipment, and the lamination equipment is used for laminating to form the battery cell. The lamination device comprises the tape splicing device in any embodiment, and the tape splicing device is used for unreeling the output membrane. Specifically, the lamination equipment further comprises a pole piece carrying device, a lamination platform and a lamination device, wherein the pole piece carrying device is arranged between the tape splicing device and the lamination platform and used for attaching a pole piece to a diaphragm unreeled and output by the tape splicing device so as to form a lamination unit. The lamination device is used for conveying the lamination unit to the lamination platform, so that one-time lamination is realized, and the battery core is formed through multiple times of lamination.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The tape splicing device is characterized by comprising a fixed seat, a first tape splicing component and a second tape splicing component, wherein the first tape splicing component and the second tape splicing component are connected to the fixed seat in a manner of approaching to or separating from each other;

2. The splicing apparatus according to claim 1, wherein said second splicing assembly further comprises a second cutter mechanism for cutting off a film material adsorbed to said second adsorption surface;

3. The splicing device of claim 2, wherein the first splicing assembly includes a first mounting base and a first suction member having the first suction surface as a side surface; the first mounting seat is arranged on the fixing seat, the first suction attachment is pivotally connected to the first mounting seat, and the first suction attachment comprises a first position where the first suction surface faces the second tape splicing assembly and a second position where the first suction surface is used for sucking standby membrane materials in the rotating process.

4. The splicing device according to claim 3, wherein the second splicing assembly includes a second mounting base and a second suction member having the second suction surface as a side surface; the second mount pad set up in the fixing base, the second adsorb a pivot connection in the second mount pad the second adsorbs the surface orientation including the second adsorbs the pivoted in-process of piece the third position of first taping subassembly and the fourth position that is used for adsorbing reserve membrane material.

5. The splicing device of claim 4, wherein the first and second mounting seats are disposed along a first direction, and the first and second mounting seats are respectively movable along the first direction relative to the fixing seat to drive the first and second suction members to approach or move away from each other.

6. The splicing apparatus of claim 5, wherein the first splicing assembly further comprises a first driving member mounted to the fixed base, the first driving member being drivingly connected to the first mounting base for driving the first mounting base to move in the first direction;

7. The splicing device of claim 5, wherein the first suction attachment member has a first abutment surface defining a first cutter-relief groove;

8. The splicing device according to claim 5, wherein the second absorbing member has a second abutting surface, and the second abutting surface is provided with a second cutter avoiding groove;

9. The belt connecting device of claim 4, wherein the first belt assembly further comprises a third driving member, the third driving member comprising a first mounting end and a first telescopic end that is telescopic relative to the first mounting end, the first mounting end being pivotally connected to the fixed base, and the first telescopic end being hingedly connected to the first suction attachment member to drive the first suction attachment member to rotate relative to the fixed base when the first telescopic end is telescopic relative to the first mounting end;

10. A lamination device, comprising a splicing arrangement according to any one of claims 1 to 9.