CN210551413U

CN210551413U - Cold and hot cutting mechanism for cutting multilayer diaphragm

Info

Publication number: CN210551413U
Application number: CN201921493635.4U
Authority: CN
Inventors: 卢雪军; 张新球
Original assignee: Dongguan Anyang Intelligent Technology Co ltd
Current assignee: Guangdong Anyang Bochuang Intelligent Technology Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-05-19
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a cold and hot cutting mechanism for cutting multilayer diaphragms, which comprises a cutting component and a supporting and carrying component; the cutting assembly and the supporting assembly both comprise mounting seats, linear guide rails extending in the X direction are arranged on the mounting seats, a cutter fixing seat is fixedly arranged at the front end of each linear guide rail X, a cutter seat capable of moving in the Z direction is movably arranged on the cutter fixing seat of the cutting assembly, a cutter pad capable of moving in the Z direction is movably arranged on the cutter fixing seat of the supporting assembly, the cutter fixing seat is also in transmission connection with a driving device fixedly arranged on the mounting seats, and the driving device can drive the cutter fixing seat to drive the cutter seat or the cutter pad to slide along the linear guide rails; the cutter seat is fixedly provided with a hot cutter and a cold cutter which are arranged at intervals in the Z direction, and the cold cutter is opposite to the cutter pad on the arrangement position. The utility model discloses a cutting mechanism assembles cold and hot cutting knife together, and diaphragm cutting machining efficiency is high, fracture and welding position parallel and level after cutting off.

Description

Cold and hot cutting mechanism for cutting multilayer diaphragm

Technical Field

The utility model belongs to the technical field of the diaphragm cutting equipment technique and specifically relates to a cold and hot cutting mechanism for cutting of multilayer diaphragm.

Background

In the existing process of winding the lithium battery cell, the diaphragm is often required to be cut before winding or after winding, so that the cell which is adapted to the winding of the diaphragm during winding and after the winding is finished can be separated from the diaphragm coiled material. When adopting single-deck diaphragm coiling electricity core, the cutting off of diaphragm only need use the cutting mechanism who sets up single cold cutting knife just can satisfy the demand. When the battery core is wound by adopting the double-layer or multi-layer diaphragm, after each layer of diaphragm is cut off, the cuts of the multi-layer diaphragm need to be welded; adopt the cutting mechanism who sets up single cold cutting knife to cut and can't satisfy corresponding requirement, and for solving above-mentioned problem among the current, what adopt usually is to cut respectively through components of a whole that can function independently structure also adopt two stations and weld process. The split structure has the problem that the two cutters are not aligned in place, namely, the cutting position and the welding position are not unified, and the problems of not-in-place welding and poor welding are easily caused. Simultaneously, in the current, still can adopt to set up a hot cutting knife and cut and the welding, but adopt the problem that this kind of mode exists to lie in, in order to satisfy the requirement of cutting, need set up the serrated edge on the cutting knife, and set up the serrated edge and can cause diaphragm incision end formation hard block because of being heated inequality when the welding, make welded multilayer diaphragm weld badly, form the quality of coiled electric core. Furthermore, what the cutting mechanism who sets up single cutting knife among the current adopted is that guide arm cooperation compression spring connects the cutting knife, the process of marcing of cutting knife is unstable to, to the heat-conduction of hot cutting knife carry out the transmission through being connected heat source and guide arm, the guide arm can produce deformation and lead to sliding unsmooth because of temperature variation, influences cutting accuracy and efficiency.

Accordingly, the present inventors have proposed a cold-hot cutting mechanism for multi-layer separator cutting that solves the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provides a problem to among the above-mentioned prior art, provide a cold and hot cutting mechanism for multilayer diaphragm cutting, this cutting mechanism with cold and hot cutting knife assembly together, diaphragm cutting machining efficiency is high, fracture and welding position parallel and level after cutting off.

In order to solve the technical problem, the utility model provides a technical proposal that a cold and hot cutting mechanism for cutting a multilayer diaphragm comprises a cutting component and a supporting component which are symmetrically arranged at the two sides of the multilayer diaphragm in the X direction; the cutting assembly and the supporting assembly both comprise mounting seats, linear guide rails extending in the X direction are arranged on the mounting seats, a cutter fixing seat is fixedly arranged at the front end of each linear guide rail X, a cutter seat capable of moving in the Z direction is movably arranged on the cutter fixing seat of the cutting assembly, a cutter pad capable of moving in the Z direction is movably arranged on the cutter fixing seat of the supporting assembly, the cutter fixing seat is also in transmission connection with a driving device fixedly arranged on the mounting seats, and the driving device can drive the cutter fixing seat to drive the cutter seat or the cutter pad to slide along the linear guide rails; the cutter seat is fixedly provided with a hot cutter and a cold cutter which are arranged at intervals in the Z direction, and the cold cutter is opposite to the cutter pad in the arrangement position; the driving device drives the cutter seat and the cutter pad to move towards opposite directions and enables the cold cutter to be in butt joint with the cutter pad and/or enables the hot cutter to be pressed against the X-direction side end of the cutter pad, the cold cutter is matched with the cutter pad to cut off the multilayer diaphragm, and the hot cutter is matched with the cutter pad to perform hot melting welding on the Y-direction notch of the multilayer diaphragm.

As a further elaboration of the above technical solution:

in the technical scheme, the X-direction front end of the cold cutting knife is provided with a tooth blade, the X-direction front end of the hot cutting knife is provided with a flat blade, and the X-direction side end of the cutting knife pad is concavely provided with a knife pad notch for the cold cutting knife to be clamped in.

In the technical scheme, the hot cutting knife is fixedly arranged at the X-direction side of the cutter seat through the heat insulation sleeve, the cold cutting knife is fixedly connected with the cutter seat through welding or screw locking, and the cold cutting knife is fixedly arranged at the bottom end of the cutter seat and extends out along the X direction.

In the above technical scheme, a Z-direction extending chute is formed in the cutter fixing seat, a sliding bolt fixedly connected with the cutter seat or the cutter pad is arranged in the chute, and the sliding bolt drives the cutter seat or the cutter pad to slide along the chute to match and adjust the Z-direction position of the cutter seat or the cutter pad.

In the technical scheme, the cutter fixing seat is connected with the driving device through a floating connector, and a buffer spring used for buffering the X-direction moving impact force of the cutter seat is further arranged on the floating connector connected with the cutter fixing seat of the cutting assembly.

In the above technical scheme, the driving device is a driving cylinder, the linear guide rail is a square ball linear guide rail, balls of the square ball linear guide rail are fixedly connected with the mounting seat, and the cutter fixing seat is fixedly arranged on a slide rail of the square ball linear guide rail.

The utility model has the advantages that the utility model installs the cutter fixing seat on the linear guide rail, which ensures the high precision of the advancing process, and installs the cold cutter and the hot cutter on the same cutter seat in combination, thereby avoiding the problem that the cold cutter and the hot cutter are not uniform in place due to the adoption of a split structure; the utility model solves the problems that the guide rod is directly connected with the hot cutting knife to cause deformation of the guide rod and unsmooth sliding of the cutting knife in the prior art; furthermore, the utility model discloses set up the spring on connecting cutter seat and drive arrangement's unsteady connector, when cutting off, can prevent that the output dynamics is too big and collapse disconnected cutter.

Drawings

Fig. 1 is an axial view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a plan view of the present invention.

In the figure, 001, a multilayer diaphragm, 100, a cutting assembly, 200, a supporting assembly, 1, a mounting seat, 2, a linear guide rail, 3, a cutter fixing seat, 4, a cutter seat, 5, a cutter pad, 6, a driving device, 7, a hot cutter, 8, a cold cutter, 9, a heat insulation sleeve, 10, a floating connector, 11, a buffer spring, 301, a sliding groove, 501, a cutter pad notch, 701, a flat edge and 801 a tooth edge.

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.

Fig. 1 to 3 illustrate an embodiment of a cold and hot cutting mechanism for cutting a multilayer diaphragm according to the present invention, and referring to fig. 1 to 3, a cold and hot cutting mechanism for cutting a multilayer diaphragm comprises a cutting assembly 100 and a supporting assembly 200 symmetrically disposed on both sides of a multilayer diaphragm 001 in an X direction; the cutting assembly 100 and the carrying assembly 200 both comprise a mounting base 1, a linear guide rail 2 extending in the X direction is arranged on the mounting base 1, a cutter fixing base 3 is fixedly arranged at the front end of the X direction of the linear guide rail 2, in this embodiment, the linear guide 2 is a square ball linear guide, and the balls of the square ball linear guide are fixedly connected with the mounting base 1, the cutter fixing seat 3 is fixedly arranged on a slide rail of the square ball linear guide rail, a cutter seat 4 capable of moving in the Z direction is movably arranged on the cutter fixing seat 3 of the cutting assembly 100, a cutter pad 5 capable of moving in the Z direction is movably arranged on a cutter fixing seat 3 of the supporting component 200, the cutter fixing seat 3 is also in transmission connection with a driving device 6 fixedly arranged on the mounting seat 1, in this embodiment, the driving device 6 is a driving cylinder, preferably a pen-shaped cylinder, and the driving device 6 can drive the cutter fixing seat 3 to drive the cutter seat 4 or the cutter pad 5 to slide along the linear guide rail 2; the cutter seat 4 is fixedly provided with a hot cutter 7 and a cold cutter 8 which are arranged at intervals in the Z direction, and the cold cutter 8 is opposite to the cutter pad 5 in the arrangement position; two drive arrangement 6 transmission cutter saddle 4 and cutter pad 5 are along X to removing in opposite directions and make cold cutting knife 8 and cutter pad 5 butt joint and/or make hot cutting knife 7 press and paste cutter pad 5 along X to the side, cold cutting knife 8 cooperation cutter pad 5 cuts off multilayer diaphragm 001, hot cutting knife 7 cooperation cutter pad 5 carries out the hot melt welding to the Y of multilayer diaphragm 001 to incision (fracture).

In this embodiment, the front end in the X direction of the cold cutting knife 8 is provided with a tooth blade 801, the front end in the X direction of the hot cutting knife 7 is provided with a flat blade 701, and the side end in the X direction of the cutting shim 5 is recessed with a shim notch 501 for the cold cutting knife 8 to be inserted; in this embodiment, the hot cutting knife 7 is fixedly arranged at the side of the cutter seat 4 in the X direction through a heat insulation sleeve 9, the cold cutting knife 8 is fixedly connected with the cutter seat 4 through welding or screw locking, and the cold cutting knife 8 is fixedly arranged at the bottom end of the cutter seat 4 and extends out in the X direction; in this embodiment, a sliding groove 301 extending in the Z direction is formed in the cutter fixing seat 3, a sliding bolt (not shown in the drawing) fixedly connected to the cutter seat 4 or the cutter pad 5 is arranged in the sliding groove 301, and the sliding bolt drives the cutter seat 4 or the cutter pad 5 to slide along the sliding groove 301 to adjust the Z-direction position of the cutter seat 4 or the cutter pad 5 in a matching manner; in this embodiment, the cutter fixing seat 3 with drive arrangement 6 is connected through unsteady connector 10, with still establish on the unsteady connector 10 that the cutter fixing seat 3 of cutting assembly 100 is connected and be used for buffering cutter seat 4 along X to the buffer spring 11 of removing the impulsive force, through this buffer spring 11, when cutting off and welding, can prevent that the output dynamics is too big and break cold cutting knife 8 and hot cutting knife 7.

In the embodiment, the cutter fixing seat is arranged on the linear guide rail, so that the high precision of the advancing process is ensured, and the cold cutter and the hot cutter are combined and arranged on the same cutter seat, so that the problem that the cold cutter and the hot cutter are not unified in place due to the adoption of a split structure is avoided; the problem that the guide rod is deformed and the cutting knife is unsmooth to slide due to the fact that the guide rod is directly connected with the hot cutting knife in the prior art is solved; this embodiment sets up the spring on connecting the unsteady connector of cutter seat and drive arrangement, when cutting off, can prevent that the output dynamics is too big and break the cutter.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A cold and hot cutting mechanism for cutting a multilayer diaphragm is characterized by comprising a cutting assembly and a supporting assembly which are symmetrically arranged on two sides of the multilayer diaphragm in the X direction; the cutting assembly and the supporting assembly both comprise mounting seats, linear guide rails extending in the X direction are arranged on the mounting seats, a cutter fixing seat is fixedly arranged at the front end of each linear guide rail X, a cutter seat capable of moving in the Z direction is movably arranged on the cutter fixing seat of the cutting assembly, a cutter pad capable of moving in the Z direction is movably arranged on the cutter fixing seat of the supporting assembly, the cutter fixing seat is also in transmission connection with a driving device fixedly arranged on the mounting seats, and the driving device can drive the cutter fixing seat to drive the cutter seat or the cutter pad to slide along the linear guide rails; the cutter seat is fixedly provided with a hot cutter and a cold cutter which are arranged at intervals in the Z direction, and the cold cutter is opposite to the cutter pad in the arrangement position; the driving device drives the cutter seat and the cutter pad to move towards opposite directions and enables the cold cutter to be in butt joint with the cutter pad and/or enables the hot cutter to be pressed against the X-direction side end of the cutter pad, the cold cutter is matched with the cutter pad to cut off the multilayer diaphragm, and the hot cutter is matched with the cutter pad to perform hot melting welding on the Y-direction notch of the multilayer diaphragm.

2. A cold and hot cutting mechanism for cutting multilayer diaphragms according to claim 1, wherein the X-direction front end of the cold cutter is provided with a tooth blade, the X-direction front end of the hot cutter is provided with a flat blade, and the X-direction side end of the cutter pad is recessed with a pad notch for the cold cutter to be clamped into.

3. A cold-hot cutting mechanism for cutting multilayer diaphragms according to claim 2, wherein the hot cutter is fixed on the side of the cutter base in the X direction through a heat insulation sleeve, the cold cutter is fixed on the cutter base through welding or screw locking, and the cold cutter is fixed on the bottom end of the cutter base and extends out in the X direction.

4. A cold-hot cutting mechanism for cutting multilayer diaphragms according to any one of claims 1 to 3, wherein the cutter holder is provided with a sliding groove extending in the Z direction, a sliding bolt fixedly connected with the cutter holder or the cutter pad is arranged in the sliding groove, and the sliding bolt drives the cutter holder or the cutter pad to slide along the sliding groove to adjust the Z-direction position of the cutter holder or the cutter pad in a matching manner.

5. A cold and hot cutting mechanism for cutting of multilayer diaphragms as claimed in claim 4, wherein the cutter fixing seat is connected with the driving device through a floating connector, and a buffer spring for buffering the X-direction moving impact of the cutter seat is further arranged on the floating connector connected with the cutter fixing seat of the cutting assembly.

6. A cold and hot cutting mechanism for cutting multilayer diaphragms according to claim 5, wherein the driving device is a driving cylinder, the linear guide rail is a square ball linear guide rail, balls of the square ball linear guide rail are fixedly connected with a mounting seat, and the cutter fixing seat is fixedly arranged on a slide rail of the square ball linear guide rail.