CN216575830U - Cutting mechanism - Google Patents

Abstract

The application is suitable for battery processing technology field, provides a cut mechanism, includes: a frame; the fixed knife is arranged on the frame; a movable seat configured to be movable toward or away from the stationary blade; the movable seat comprises a first movable part, a second movable part and a connecting part, wherein the first movable part and the second movable part are distributed at intervals, the connecting part is arranged between the first movable part and the second movable part, and the first movable part, the second movable part and the connecting part are enclosed to form a cutter groove; the movable knife is inserted in the knife groove and can cut a piece to be cut together with the fixed knife under the driving of the movable seat; the first elastic piece is abutted between the movable knife and the first movable part or between the movable knife and the second movable part, so that the movable knife is elastically abutted between the first movable part and the second movable part. By adopting the technical scheme, the dismounting operation of the movable knife on the movable seat is very simple and convenient, the replacement operation of the movable knife is facilitated, and the replacement efficiency of the movable knife is improved.

Description

Cutting mechanism

Technical Field

The application belongs to the technical field of battery processing, and more specifically relates to a cut mechanism.

Background

In traditional battery winder, the cutting mechanism of pole piece adopts the cutter to realize the operation of cutting to the pole piece, and at present, the cutter adopts the screw to realize fixedly usually for the dismouting operation of cutter is comparatively loaded down with trivial details, thereby causes the change operating efficiency of cutter low.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the application is as follows: the utility model provides a cutting mechanism, aims at solving among the prior art, the technical problem that the change complex operation, the inefficiency of cutter.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

there is provided a cutting mechanism including:

a frame;

the fixed knife is arranged on the rack;

a movable mount configured to be movable toward or away from the stationary blade; the movable seat comprises a first movable part, a second movable part and a connecting part, wherein the first movable part and the second movable part are distributed at intervals, the connecting part is arranged between the first movable part and the second movable part, and the first movable part, the second movable part and the connecting part are enclosed to form a cutter groove;

the movable knife is inserted in the knife groove and can be driven by the movable seat to cut a piece to be cut together with the fixed knife;

the first elastic piece is abutted between the movable knife and the first movable part or between the movable knife and the second movable part, so that the movable knife is elastically abutted between the first movable part and the second movable part.

In one embodiment, the movable knife is concavely provided with a groove; one end of the first elastic piece is abutted against the first movable part or the second movable part, and the other end of the first elastic piece is inserted into the groove and abutted against the movable knife.

In one embodiment, the movable knife comprises a cutting part, and the first elastic piece abuts between the cutting part and the first movable part or between the cutting part and the second movable part; the first limit of cutting portion with the second of stationary knife cuts the limit and all extends the setting along predetermineeing the direction, predetermine the direction perpendicular to respectively the moving direction of sliding seat and the elastic action direction of first elastic component.

In one embodiment, the movable knife further comprises a limiting portion arranged on the cutting portion, and the limiting portion is attached to one side of the fixed knife, so that the first cutting edge and the second cutting edge are overlapped on a section perpendicular to the moving direction of the movable seat.

In one embodiment, the cutting mechanism further comprises:

the pressing plate is positioned on one side, facing the fixed knife, of the first movable part and is arranged opposite to the fixed knife;

the second elastic part is connected with the first movable part and between the pressing plates, so that the movable seat faces towards the fixed knife and supplies when moving, the pressing plates and the fixed knife are elastically clamped to cut the parts, and the movable knife can be clamped by the fixed knife together to cut the parts to be cut between the pressing plates and the fixed knife.

In one embodiment, the fixed knife comprises a knife seat arranged on the frame and a cutting knife arranged on the knife seat, the knife seat is arranged opposite to the pressing plate and can elastically clamp the piece to be cut with the pressing plate, and the cutting knife can cut the piece to be cut together with the movable knife.

In one embodiment, the pressure plate is provided with a guide shaft, and the guide shaft is movably arranged on the first movable part along the moving direction of the movable seat.

In one embodiment, the guide shaft includes a shaft body disposed on the pressing plate and a limiting piece disposed at an end of the shaft body away from the pressing plate, the shaft body is configured to movably penetrate through the first movable portion along a moving direction of the movable seat, and the limiting piece is disposed at a side of the first movable portion facing away from the pressing plate and can abut against the first movable portion.

In one embodiment, the cutting mechanism further comprises an actuator for driving the movable seat to move towards or away from the fixed knife.

In one embodiment, the first movable portion, the second movable portion or the connecting portion is connected to a connecting seat, one of the frame and the connecting seat is provided with a guide rail, and the other is provided with a slide block slidably disposed on the guide rail.

The beneficial effect that the cutting mechanism that this application embodiment provided lies in: compared with the prior art, in this application, through first elastic component butt between activity sword and first movable part or butt between activity sword and second movable part for activity sword elasticity butt is between first movable part and second movable part, with spacing in the sword inslot, thereby has realized the installation of activity sword on the sliding seat, then the activity sword can cut with the stationary knife jointly under the drive of sliding seat and treats the piece that cuts. Therefore, the movable knife can be installed on the movable seat only by compressing the first elastic part and arranging the movable knife between the first movable part and the first elastic part or between the second movable part and the first elastic part so that the movable knife is elastically abutted between the first movable part and the second movable part, and the movable knife is not required to be fixed on the movable seat through screws; correspondingly, only need compress first elastic component, can make the activity sword take the movable part of following and take the movable part of the second between apart, realize the dismantlement of activity sword, like this for the dismouting operation of activity sword on the sliding seat is very simple and convenient, does benefit to the change operation of activity sword, thereby helps improving the change efficiency of activity sword.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a cutting mechanism according to an embodiment of the present application;

fig. 2 is a partial cross-sectional view of the cutting mechanism provided in fig. 1;

fig. 3 is a schematic view of a movable seat of the cutting mechanism provided in fig. 1;

FIG. 4 is a schematic view of a movable knife of the cutting mechanism provided in FIG. 1;

fig. 5 is a partial schematic view of the cutting mechanism provided in fig. 1.

Wherein, in the figures, the respective reference numerals:

1-a frame; 2-fixing the knife; 201-second cut edge; 21-a tool apron; 22-a cutter; 3-a movable seat; 301-a knife slot; 31-a first movable portion; 32-a second movable portion; 33-a connecting portion; 4, moving a knife; 401-grooves; 402-a first cut edge; 41-a cutting part; 42-a limiting part; 5-a first elastic member; 6-pressing a plate; 7-a second elastic member; 8-a guide shaft; 81-shaft body; 82-limiting piece; 9-a driver; 10-a connecting seat; 11-a guide rail; 12-a slide block; m-pole piece; z-a first direction; y-a second direction; x-the third direction.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as 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, wherein two or more includes two.

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 parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The following detailed description is made with reference to the accompanying drawings and examples:

referring to fig. 1 to fig. 3, a cutting mechanism according to an embodiment of the present application is mainly used for cutting a to-be-cut object. In this embodiment, the piece to be cut is a pole piece m; of course, in other embodiments, the to-be-cut piece may also be of other structures that need to be cut, that is, the cutting mechanism provided in this embodiment may also be used to cut off other to-be-cut pieces other than the pole piece m.

The cutting mechanism comprises a frame 1, a fixed knife 2, a movable seat 3, a movable knife 4 and a first elastic piece 5.

In a specific embodiment, the fixed blade 2 is disposed on the frame 1, and the movable seat 3 is configured to be movable toward or away from the fixed blade 2. The movable seat 3 includes a first movable portion 31, a second movable portion 32 and a connecting portion 33, the first movable portion 31 and the second movable portion 32 are distributed at intervals, the connecting portion 33 is disposed between the first movable portion 31 and the second movable portion 32, and the knife slot 301 is formed by the first movable portion 31, the second movable portion 32 and the connecting portion 33. The movable knife 4 is inserted in the knife groove 301 and can be driven by the movable seat 3 to cut a piece to be cut together with the fixed knife 2.

It should be noted that the moving direction of the movable seat 3 is the first direction z, that is, the movable seat 3 and the fixed blade 2 are distributed at intervals along the first direction z, and the movable seat 3 can move toward the fixed blade 2 or move away from the fixed blade 2 along the first direction z; wherein the first direction z is the up-down direction as illustrated in fig. 1 and 2. As shown in fig. 1 and 2, the movable seat 3 is located below the fixed blade 2, the movable blade 4 is mounted on the movable seat 3 and located below the fixed blade 2, and the pole piece m is conveyed between the fixed blade 2 and the movable blade 4 along the second direction y; when the movable seat 3 upwards moves towards the fixed knife 2, the movable knife 4 upwards moves towards the fixed knife 2 under the driving of the movable seat 3, so that the movable knife 4 and the fixed knife 2 move in opposite directions along the first direction z, and the pole piece m passing through the space between the movable knife 4 and the fixed knife 2 is cut together. Wherein the first direction z is substantially perpendicular to the second direction y.

It should be further noted that the knife slot 301 is configured to have an opening facing the fixed knife 2 along the first direction z, and when the movable knife 4 is inserted into the knife slot 301, the first cutting edge 402 of the movable knife 4 can be directly opposite to the second cutting edge 201 of the fixed knife 2 along the first direction z, so that the movable knife 4 and the fixed knife 2 move oppositely along the first direction z, and the movable knife 4 and the fixed knife 2 can cut the pole piece m together along the first direction z; alternatively, the first movable portion 31 and the second movable portion 32 are spaced apart from each other in the second direction y, and the connecting portion 33 is connected between the first movable portion 31 and the second movable portion 32 such that the opening of the pocket 301 faces the fixed blade 2 in the first direction z.

In a specific embodiment, the first elastic member 5 abuts between the movable blade 4 and the first movable portion 31 or between the movable blade 4 and the second movable portion 32, so that the movable blade 4 elastically abuts between the first movable portion 31 and the second movable portion 32, thereby achieving the position limitation of the movable blade 4 in the blade groove 301.

Alternatively, as shown in fig. 2, the first elastic member 5 abuts between the movable blade 4 and the second movable portion 32; specifically, one end of the first elastic element 5 abuts against the second movable portion 32, the other end of the first elastic element 5 abuts against one side of the movable blade 4, and the other side of the movable blade 4 abuts against the first movable portion 31, so that the movable blade 4 abuts between the first movable portion 31 and the second movable portion 32 through the elasticity of the first elastic element 5, and the movable blade 4 is limited in the blade slot 301. The first elastic member 5 may abut between the movable blade 4 and the first movable portion 31 according to actual requirements.

Alternatively, as shown in fig. 2, the first movable portion 31 and the second movable portion 32 are distributed at intervals along the second direction y, the connecting portion 33 is connected between the first movable portion 31 and the second movable portion 32 along the second direction y, and the first elastic element 5 is extended along the second direction y; in this way, one end of the first elastic member 5 along the second direction y abuts against the second movable portion 32, the other end of the first elastic member 5 along the second direction y abuts against one side of the movable knife 4 along the second direction y, and the other side of the movable knife 4 along the second direction y abuts against the first movable portion 31, so that the movable knife 4 elastically abuts between the first movable portion 31 and the second movable portion 32 along the second direction y through the first elastic member 5. In other alternative embodiments, the first movable portion 31 and the second movable portion 32 may also be spaced apart along the third direction x, and the first elastic member 5 extends along the third direction x, so that the movable blade 4 is elastically abutted between the first movable portion 31 and the second movable portion 32 along the third direction x by the first elastic member 5; here, the third direction x is perpendicular to the first direction z and the second direction y, respectively, and even the third direction x may be disposed not parallel to the first direction z and the second direction y, respectively, nor perpendicular thereto.

In some alternative embodiments, the first elastic member 5 may be a spring, a leaf spring, or the like having elastic properties.

In the embodiment of the present application, the first elastic element 5 is abutted between the movable knife 4 and the first movable portion 31 or between the movable knife 4 and the second movable portion 32, so that the elastic abutment of the movable knife 4 is between the first movable portion 31 and the second movable portion 32, and is limited in the knife slot 301, thereby realizing the installation of the movable knife 4 on the movable seat 3, and the movable knife 4 can be driven by the movable seat 3 to cut the to-be-cut piece together with the fixed knife 2. In this way, the movable knife 4 can be mounted on the movable seat 3 by only compressing the first elastic member 5 and arranging the movable knife 4 between the first movable portion 31 and the first elastic member 5 or between the second movable portion 32 and the first elastic member 5 so that the movable knife 4 is elastically abutted between the first movable portion 31 and the second movable portion 32, without fixing the movable knife 4 on the movable seat 3 by screws; correspondingly, only need compress first elastic component 5, can make activity sword 4 unpack apart from between first movable part 31 and the second movable part 32, realize the dismantlement of activity sword 4, like this for the dismouting operation of activity sword 4 on sliding seat 3 is very simple and convenient, does benefit to the change operation of activity sword 4, thereby helps improving the change efficiency of activity sword 4.

It should be noted that, the first elastic member 5 abuts against the movable knife 4, so that one side of the movable knife 4 departing from the first elastic member 5 abuts against the first movable portion 31 or the second movable portion 32, and the movable knife 4 is positioned by the first movable portion 31 and the second movable portion 32, thereby ensuring the position of the movable knife 4, so that the first cutting edge 402 of the movable knife 4 and the second cutting edge 201 of the fixed knife 2 can be overlapped on the cross section perpendicular to the moving direction of the movable seat 3, so that the movable knife 4 can better cut the pole piece m with the fixed knife 2, and preventing the gap between the movable knife 4 and the fixed knife 2 from causing the phenomenon that the pole piece m is burr appears after being cut, thereby improving the quality of the pole piece m after being cut.

In one embodiment, referring to fig. 2 to 4, a recess 401 is formed in a side of the movable blade 4 for abutting against the first elastic element 5. One end of the first elastic member 5 abuts against the first movable portion 31 or the second movable portion 32, and the other end of the first elastic member 5 is inserted into the groove 401 and abuts against the movable knife 4. By adopting the technical scheme, the groove 401 can position the first elastic part 5, so that when the movable knife 4 is installed, after the first elastic part 5 is compressed, the movable knife 4 is only required to be placed in the knife groove 301, and the groove 401 of the movable knife 4 is aligned with the first elastic part 5, so that the first elastic part 5 can be loosened; at this time, the first elastic member 5 is reset and can be accurately abutted against the groove 401 of the movable knife 4, so that the movable knife 4 is accurately limited in the knife groove 301, that is, the movable knife 4 is installed; realize the location to first elastic component 5 through recess 401, realized the location of activity sword 4 in sword groove 301, need not additionally to adjust the position of activity sword 4 in sword groove 301, so further simplified the installation step of activity sword 4, do benefit to the change operation of activity sword 4, further help improving the change efficiency of activity sword 4.

It should be noted that, when one end of the first elastic element 5 abuts against the second movable portion 32, one side of the movable blade 4 facing the second movable portion 32 is recessed to form a groove 401, so that the other end of the first elastic element 5 is inserted into the groove 401 and abuts against one side of the movable blade 4 facing the second movable portion 32, as shown in fig. 2 to 4; when one end of the first elastic element 5 is connected to the first movable portion 31, the groove 401 is recessed at a side of the movable knife 4 facing the first movable portion 31, so that the other end of the first elastic element 5 is inserted into the groove 401 and abuts against a side of the movable knife 4 facing the first movable portion 31.

In an embodiment, referring to fig. 2 and fig. 4, the movable knife 4 includes a cutting portion 41, and the first elastic member 5 abuts between the cutting portion 41 and the first movable portion 31 or between the cutting portion 41 and the second movable portion 32. As can be understood, when the first elastic member 5 abuts between the movable blade 4 and the first movable portion 31, the first elastic member 5 abuts between the cut portion 41 and the first movable portion 31; when the first elastic member 5 abuts between the movable blade 4 and the second movable portion 32, the first elastic member 5 abuts between the cutting portion 41 and the second movable portion 32, as shown in fig. 2.

The first cutting edge 402 of the cutting portion 41 and the second cutting edge 201 of the fixed knife 2 are both extended in a predetermined direction. Wherein, the preset direction is respectively vertical to the moving direction of the movable seat 3 and the elastic action direction of the first elastic piece 5; it is understood that the first cutting edge 402 and the second cutting edge 201 are both extended along a third direction x, and the third direction x is perpendicular to the first direction z and the second direction y.

Through adopting above-mentioned technical scheme for first limit 402 and the second limit 201 that cuts all extend the setting along third direction x, like this, cut the mechanism and can cut the great pole piece m of size on the third direction x, corresponding, cut the mechanism and also can cut the pole piece m that takes place the off normal along third direction x, improved the suitability of cutting the mechanism.

In an embodiment, referring to fig. 2 and fig. 4, the movable knife 4 further includes a limiting portion 42, and the limiting portion 42 is disposed on the cutting portion 41; the limiting portion 42 is attached to one side of the fixed knife 2, so that the first cutting edge 402 and the second cutting edge 201 are overlapped on a cross section perpendicular to the moving direction of the movable seat 3. Through adopting above-mentioned technical scheme, make when movable cutter 4 moves towards stationary knife 2 under the drive of sliding seat 3, spacing portion 42 of movable cutter 4 is removing in one side of stationary knife 2, thereby make on the cross-section on the perpendicular to first direction z, first limit 402 and the coincidence setting of second limit 201 of cutting, so guarantee first limit 402 and the effect that second limit 201 of cutting cut pole piece m jointly, prevent that first limit 402 of cutting from aiming at the second limit 201 of cutting from leading to first limit 402 of cutting and second to cut and have the gap between the limit 201, thereby prevent that first limit 402 of cutting and second cut at least part of pole piece m when limit 201 of cutting pole piece m from not being cut and the phenomenon of burr appears, so improve the quality of pole piece m after cutting.

In one embodiment, referring to fig. 5, the cutting mechanism further includes a pressing plate 6 and a second elastic member 7. The pressing plate 6 is positioned on one side of the first movable part 31 facing the fixed knife 2 and is arranged opposite to the fixed knife 2; the second elastic part 7 is connected between the first movable part 31 and the pressing plate 6 so as to elastically clamp the pressing plate 6 and the fixed knife 2 to be cut when the movable seat 3 moves towards the fixed knife 2, and the movable knife 4 can cut the to-be-cut piece clamped between the pressing plate 6 and the fixed knife 2 together with the fixed knife 2.

As shown in fig. 5, the pressing plate 6 is located above the first movable portion 31 and below the fixed blade 2, and the second elastic member 7 is connected between the pressing plate 6 and the first movable portion 31 and extends along the first direction z.

During operation, the movable seat 3 moves upward toward the fixed knife 2, and then the first movable part 31 moves upward toward the fixed knife 2, so that the pressing plate 6 moves upward toward the fixed knife 2 under the driving of the first movable part 31 and the second elastic element 7; when the pressing plate 6 contacts the fixed knife 2, the movable seat 3 continues to move upwards, the pressing plate 6 is fixed relative to the fixed knife 2 and moves relative to the first movable part 31 along the first direction z, that is, the first movable part 31 moves upwards towards the pressing plate 6, so that the second elastic part 7 is compressed between the pressing plate 6 and the first movable part 31, and the pressing plate 6 and the fixed knife 2 elastically clamp the pole piece m together under the action of the second elastic part 7; and, at this moment, the movable knife 4 is driven by the movable seat 3 to move upwards so as to cut the pole piece m together with the fixed knife 2. Finally, the movable seat 3 moves upward and away from the fixed knife 2, and the second elastic piece 7 is also reset slowly.

Through adopting above-mentioned technical scheme for clamp plate 6 earlier with 2 elasticity centre gripping pole pieces m of stationary knife, movable sword 4 cuts the pole piece m of centre gripping between clamp plate 6 and stationary knife 2 with stationary knife 2 again jointly, has so guaranteed the stable effect of cutting the mechanism, prevents to cut the mechanism and the problem that pole piece m shifted appears cutting the in-process of pole piece m.

In an embodiment, referring to fig. 2 and 5, the fixed knife 2 includes a knife seat 21 and a cutting knife 22, the knife seat 21 is disposed on the frame 1, and the cutting knife 22 is disposed on the knife seat 21. The cutter holder 21 is arranged opposite to the pressing plate 6 and can elastically clamp the to-be-cut piece with the pressing plate 6, and the cutter 22 can cut the to-be-cut piece together with the movable cutter 4. By adopting the technical scheme, when the pressing plate 6 is driven by the first movable part 31 and the second elastic part 7 to move towards the fixed knife 2, the pressing plate 6 and the knife holder 21 of the fixed knife 2 elastically clamp the pole piece m; then, the movable knife 4 is driven by the movable seat 3 to cut the pole piece m clamped between the knife holder 21 and the pressing plate 6 together with the cutter 22, so that the functions of clamping the pole piece m and cutting the pole piece m of the fixed knife 2 are ensured.

In one embodiment, referring to fig. 5, the pressing plate 6 is provided with a guide shaft 8, and the guide shaft 8 is movably disposed through the first movable portion 31 along the moving direction of the movable base 3. By adopting the above technical scheme, when the pressing plate 6 and the first movable portion 31 move relatively along the first direction z, the guide shaft 8 moves relatively to the first movable portion 31 along the first direction z under the driving of the pressing plate 6, so that the guide effect when the pressing plate 6 and the first movable portion 31 move relatively along the first direction z is realized; like this, when clamp plate 6 and 2 elasticity centre gripping pole pieces m of stationary knife, and first movable part 31 moves towards clamp plate 6 along first direction z, the setting of guide shaft 8 for first movable part 31 can be more stable, directionally move towards clamp plate 6 along first direction z, thereby make movable knife 4 can be more stable under the drive of first movable part 31, directionally move, in order to cut pole piece m with stationary knife 2 jointly, so improved pole piece m cut stability.

In one embodiment, referring to fig. 5, the guide shaft 8 includes a shaft body 81 and a limiting plate 82. The shaft 81 is disposed on the pressing plate 6, the limiting piece 82 is disposed at one end of the shaft 81 far from the pressing plate 6, the shaft 81 is movably disposed through the first movable portion 31 along the moving direction of the movable seat 3, and the limiting piece 82 is disposed at one side of the first movable portion 31 back to the pressing plate 6 and can abut against the first movable portion 31. Through adopting above-mentioned technical scheme for spacing piece 82 is located one side of first movable part 31 clamp plate 6 dorsad, and can butt first movable part 31, like this, when the removal that resets of sliding seat 3 stationary knife 2 dorsad, first movable part 31 butt in spacing piece 82 makes axis body 81 drive clamp plate 6 and remove 2 stationary knife 2 dorsad under the drive of spacing piece 82, so can realize the removal that resets of sliding seat 3, movable knife 4 and clamp plate 6 steadily.

In one embodiment, referring to fig. 1, the cutting mechanism further includes an actuator 9, and the actuator 9 is used for driving the movable seat 3 to move toward or away from the fixed knife 2. Through adopting above-mentioned technical scheme, realized cutting the automatic work of mechanism, help improving pole piece m's cutting efficiency.

Optionally, the drive 9 is mounted on the frame 1.

In one embodiment, referring to fig. 1, the first movable portion 31, the second movable portion 32 or the connecting portion 33 is connected to the connecting base 10, one of the frame 1 and the connecting base 10 is provided with a guide rail 11, and the other is provided with a sliding block 12 slidably disposed on the guide rail 11.

As shown in fig. 1, the guide rail 11 is disposed on the frame 1 and extends along the first direction z, and the slider 12 is disposed on the connecting seat 10; when the movable seat 3 moves along the first direction z, the sliding block 12 is slidably arranged on the guide rail 11 along the first direction z, so that the stability of the movable seat 3 during moving is improved, and the stability of the pressing plate 6 and the fixed knife 2 for elastically clamping the pole piece m, the movable knife 4 and the fixed knife 2 for cutting the pole piece m together is improved. Of course, in other alternative embodiments, the sliding block 12 may be provided on the frame 1, and correspondingly, the guide rail 11 is provided on the connecting section 10.

In the traditional scheme, the movable knife 4 is guided by double bearings to realize relative movement with the fixed knife 2, and the movable knife 4 moves towards or away from the fixed knife 2 and is driven by a cam mechanism, so that the overall size of the cutting mechanism is large, the layout of the cutting mechanism in a battery winder is limited, the cutting mechanism is far away from a winding needle, the cutting operation on a pole piece is difficult to realize, and particularly the cutting operation on a narrow pole piece is difficult to realize; in this embodiment, driver 9 is through drive connecting seat 10 to realize the removal of sliding seat 3, thereby realize the removal of activity sword 4, then this embodiment realizes the removal of activity sword 4 through unilateral cantilever support's mode, helps reducing the volume that cuts the mechanism, thereby helps optimizing and cuts the overall arrangement enough in battery winder, so helps realizing the operation of cutting of pole piece m, also can be applicable to the operation of cutting to narrow pole piece.

Referring to fig. 1 to 5, the cutting mechanism provided in this embodiment has the following working principle: when the pole piece m is cut, the driver 9 drives the connecting seat 10 to move upwards, so that the movable seat 3 moves upwards towards the fixed knife 2, and the pressing plate 6 moves upwards under the driving of the first movable part 31 and the second elastic part 7 and contacts the knife holder 21 of the fixed knife 2; at this time, the pressing plate 6 is fixed relative to the tool holder 21; then, the driver 9 continues to drive, the first movable portion 31 continues to move towards the tool apron 21, and then the first movable portion 31 moves towards the pressing plate 6 and moves relative to the shaft 81, so that the second elastic member 7 is in a compressed state, and the pressing plate 6 and the tool apron 21 jointly elastically clamp the pole piece m under the drive of the second elastic member 7; at this time, the movable knife 4 is driven by the first movable portion 31 to move upward, so as to cut the pole piece m clamped between the pressing plate 6 and the knife holder 21 together with the cutting knife 22 of the fixed knife 2. Then, the driver 9 drives the connecting seat 10 to move downward, so that the first movable portion 31 moves downward to return and abuts against the limiting piece 82, the shaft body 81 drives the pressing plate 6 to move downward to return under the driving of the limiting piece 82, and the second elastic element 7 slowly returns; meanwhile, the movable knife 4 is also driven by the first movable portion 31 to move downwards in a reset manner until the movable seat 3, the pressing plate 6 and the second elastic part 7 are all in a reset state, and then the next pole piece m cutting operation is performed.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A cutting mechanism, comprising:

a frame (1);

the fixed knife (2) is arranged on the rack (1);

a movable seat (3) configured to be movable toward or away from the stationary blade (2); the movable seat (3) comprises a first movable part (31) and a second movable part (32) which are distributed at intervals, and a connecting part (33) arranged between the first movable part (31) and the second movable part (32), wherein the first movable part (31), the second movable part (32) and the connecting part (33) enclose to form a knife groove (301);

the movable knife (4) is inserted into the knife groove (301) and can be driven by the movable seat (3) to cut a piece to be cut together with the fixed knife (2);

the first elastic piece (5) is abutted between the movable knife (4) and the first movable part (31) or between the movable knife (4) and the second movable part (32), so that the movable knife (4) is elastically abutted between the first movable part (31) and the second movable part (32).

2. The cutting mechanism according to claim 1, wherein the movable blade (4) is concavely formed with a recess (401); one end of the first elastic piece (5) is abutted against the first movable part (31) or the second movable part (32), and the other end of the first elastic piece (5) is inserted into the groove (401) and abutted against the movable knife (4).

3. The cutting mechanism according to claim 1, wherein the movable blade (4) includes a cutting portion (41), and the first elastic member (5) abuts between the cutting portion (41) and the first movable portion (31) or between the cutting portion (41) and the second movable portion (32); the first limit (402) of cutting of portion (41) with the second of stationary knife (2) cuts limit (201) and all extends the setting along predetermineeing the direction, predetermine the direction perpendicular to respectively the moving direction of sliding seat (3) and the elastic action direction of first elastic component.

4. The cutting mechanism according to claim 3, wherein the movable blade (4) further comprises a limiting portion (42) provided on the cutting portion (41), the limiting portion (42) is attached to one side of the fixed blade (2) so that the first cutting edge (402) and the second cutting edge (201) coincide with each other in a cross section perpendicular to a moving direction of the movable base (3).

5. The cutting mechanism of any one of claims 1-4, further comprising:

the pressing plate (6) is positioned on one side, facing the fixed knife (2), of the first movable part (31) and is arranged opposite to the fixed knife (2);

second elastic component (7), connect in first movable part (31) with between clamp plate (6), in order to be in sliding seat (3) orientation confession when stationary knife (2) remove clamp plate (6) with stationary knife (2) elasticity centre gripping is waited to cut the piece, just movable knife (4) can with stationary knife (2) cut the centre gripping jointly in clamp plate (6) with wait to cut the piece between stationary knife (2).

6. Cutting mechanism according to claim 5, characterized in that the stationary knife (2) comprises a knife holder (21) arranged on the frame (1) and a cutting knife (22) arranged on the knife holder (21), the knife holder (21) being arranged opposite the press plate (6) and being capable of resiliently clamping the piece to be cut with the press plate (6), and the cutting knife (22) being capable of cutting the piece to be cut together with the movable knife (4).

7. The cutting mechanism according to claim 5, wherein a guide shaft (8) is provided on the pressing plate (6), and the guide shaft (8) is configured to be movably inserted through the first movable portion (31) in a moving direction of the movable base (3).

8. The cutting mechanism according to claim 7, wherein the guide shaft (8) comprises a shaft body (81) disposed on the pressing plate (6) and a limiting piece (82) disposed at an end of the shaft body (81) far away from the pressing plate (6), the shaft body (81) is configured to movably penetrate through the first movable portion (31) along a moving direction of the movable seat (3), and the limiting piece (82) is disposed at a side of the first movable portion (31) facing away from the pressing plate (6) and can abut against the first movable portion (31).

9. Cutting mechanism according to any one of claims 1-4, characterized in that the cutting mechanism further comprises an actuator (9), which actuator (9) is adapted to drive the movable holder (3) towards or away from the stationary knife (2).

10. The cutting mechanism according to claim 9, wherein the first movable portion (31), the second movable portion (32) or the connecting portion (33) is connected to a connecting base (10), one of the frame (1) and the connecting base (10) is provided with a guide rail (11), and the other is provided with a slider (12) slidably mounted on the guide rail (11).

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