CN214588947U - A unloading flattens device for battery production - Google Patents

Abstract

The utility model relates to the technical field of battery production equipment, in particular to a blanking flattening device for battery production, which comprises a blanking station and a transitional flattening station, wherein the blanking station comprises a horizontal base, the rear end of the horizontal base fixedly connected with a vertical plate of a frame is provided with a horizontal moving base moving along the longitudinal direction, the front end and the rear end of a vertical moving base moving along the vertical direction on the horizontal moving base are respectively provided with a front sliding base and a rear sliding base moving along the transverse direction, and the front sliding base and the rear sliding base are respectively arranged on the front sliding base, the two ends of the rear-end sliding base are respectively provided with a longitudinally-moving clamping base, the inner end of the clamping base is fixedly connected with a fixed supporting column, the outer end of the clamping base is provided with a longitudinally-moving supporting column, the top end of the fixed supporting column is connected with a supporting rod, the top end of the moving supporting column is connected with a clamping head, a substrate of a transition flattening station is connected with a stand plate of the frame, and the top end and the bottom end of the substrate are connected with a pressing block on a vertical sliding support moving along the vertical direction; the problem of battery production with unloading flattening device be difficult to guarantee to the processingquality of battery is solved.

Description

A unloading flattens device for battery production

Technical Field

The utility model relates to a battery production facility technical field specifically is an unloading flattening device for battery production.

Background

A lithium battery is a primary battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. At present, consumer lithium ion batteries are mainly divided into two categories, namely a round soft package and a square soft package; the square soft package battery needs a square battery cell, and the square battery cell is divided into two modes of flattening after the circular winding machine is manufactured and manufacturing the square winding machine due to different specifications. Because the tension of the square winding machine is difficult to control and the production speed is slow, and the tension of the circular winding machine is simple to control and the production speed is fast, the flat method after the circular winding machine is manufactured is mostly adopted in the industry to manufacture the square battery cell.

However, the production efficiency of the traditional battery cell flattening process is low, and no automatic battery cell flattening equipment is provided; basically, all adopt the equipment that flattens of simplex position, arrange in by the manual work behind the electric core sabot that will flatten and flatten equipment department and flatten, then the manual work is taken away, leads to production efficiency low. Because the production efficiency of the existing battery cell flattening equipment is low, the existing battery cell flattening equipment cannot adapt to the production efficiency of a circular winding machine, and the material accumulation before the flattening process is reduced by frequently suspending the production of the circular winding machine. In addition, in order to improve the productivity, a plurality of battery cell flattening devices are often required to be additionally arranged to deal with the production speed of the winding machine, so that the investment amount and the labor intervention are increased, and the production cost is increased. Not to mention the automatic production of square electric core is realized in the cooperation of current electric core flattening equipment and circular winder.

With the progress of the scientific and technical level, the organic combination of battery blanking and flattening processes is realized during the production and processing of the battery at present. In actual operation, after the power battery finishes a winding process, the support rods on the two sides of the winding needle are simultaneously inserted into the notches on the two sides of the winding needle, and after the winding needle is retracted, the two support rods respectively move towards the two sides, so that the battery core is changed into an oval shape from a round state; and then the cell transferring mechanism transfers the cell to a prepressing station, the prepressing mechanism of the prepressing station clamps the battery firstly, and the flattening process of the battery is continuously completed after the strut is withdrawn. However, the blanking and flattening device has certain disadvantages, such as:

1. because the stay bar is in a cantilever state, in the process that the stay bar moves towards two sides, the stress of the battery cell is uneven in the length direction of the stay bar, the battery cell becomes more serious as the width of the battery cell becomes larger, the position close to the cantilever point inside the battery cell is damaged, and the position far away from the cantilever point is not stretched in place;

2. after prepressing in the mode, the stress concentration phenomenon exists at the positions of the two ends in the battery core;

3. in the process of retreating the coiling needle, the relative position of the stay bar and the battery core can slide, so that the position of a lug of a battery is changed after prepressing;

4. because the end part of the diaphragm inside the battery core is not fixed, the diaphragm has the risk of being taken out by the winding needle in the process of retreating the winding needle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an unloading flattening device for battery production for solve present battery production and flatten the problem that the device is difficult to the assurance to the processingquality of battery with the unloading.

In order to achieve the above object, the utility model provides a following technical scheme: a blanking flattening device for battery production comprises a rack vertical plate, a winding needle, a battery cell transferring mechanism and a pre-pressing station, wherein the battery cell transferring mechanism is provided with a clamping jaw for clamping a battery cell, and also comprises a blanking station and a transitional flattening station, the blanking station comprises a horizontal base, the rear end of the horizontal base is vertically and fixedly connected with the front surface of the rack vertical plate, the top surface of the horizontal base is provided with a horizontal moving base moving along the longitudinal direction, the horizontal moving base is provided with a vertical moving base moving along the vertical direction, the front end and the rear end of the vertical moving base are respectively provided with a front end sliding base and a rear end sliding base moving along the transverse direction, the two ends of the front end sliding base and the rear end sliding base are respectively provided with a clamping base moving along the longitudinal direction, and the inner end at the top of the clamping base is fixedly connected with a fixed supporting column, the outer end of the top of the clamping base is provided with a movable supporting column which moves longitudinally, the top end of the fixed supporting column is vertically and fixedly connected with a supporting rod, and the top end of the movable supporting column is vertically and fixedly connected with a clamping head;

the transition flattening station comprises a base plate, the back of the base plate is fixedly connected with the vertical plate of the frame, vertical sliding supports which move relatively in the vertical direction are arranged at the top end and the bottom end of the base plate, and pressing blocks are connected to the vertical sliding supports.

Preferably, the positions, close to the two sides, of the top and the bottom of the front surface of the substrate are respectively provided with a slide rail in the vertical direction, the vertical sliding supports are respectively in sliding clamping connection with the slide rails correspondingly, and the top end and the bottom end of the substrate are respectively and correspondingly provided with a power mechanism for driving the vertical sliding supports to slide up and down along the slide rails.

Preferably, the middle part of the opposite face of the vertical sliding support is connected with a buffer spring, the other end of the buffer spring is connected with a buffer support, the two ends of the buffer support are respectively corresponding to the sliding clamping of the sliding rail, and the pressing block is fixedly connected to the middle part of the opposite face of the buffer support.

Preferably, a telescopic loop bar is sleeved in the buffer spring, and two ends of the telescopic loop bar are respectively and fixedly connected with the vertical sliding support and the buffer support in a vertical manner.

Preferably, the power mechanism arranged on the substrate is one of a screw driving mechanism, a cam driving mechanism or a pneumatic telescopic mechanism.

Preferably, the section of the clamping jaw provided by the battery cell transferring mechanism is one of circular or rectangular.

Preferably, the cross section of the clamping head is one of circular, semicircular or elliptical.

Preferably, the horizontal base is provided with a screw rod driving mechanism for driving the horizontal moving base to slide on the top surface of the horizontal base in a reciprocating manner along the longitudinal direction.

Preferably, a screw rod driving mechanism for driving the vertical moving base to slide back and forth along the vertical direction is arranged on the horizontal moving base.

Preferably, the front end and the rear end of the vertical moving base are respectively provided with a pneumatic telescopic cylinder for driving the front end sliding base and the rear end sliding base to slide in a transverse reciprocating manner, the two ends of the front end sliding base and the rear end sliding base are respectively provided with a pneumatic telescopic cylinder for driving the corresponding clamping base to move in a longitudinal reciprocating manner, and the clamping base is respectively provided with a pneumatic telescopic cylinder for driving the moving support column to move in a longitudinal reciprocating manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model relates to a battery unloading flattening device adopts the fixture that four group's vaulting poles and supporting head are constituteed to carry out the centre gripping to electric core fixedly, has changed the effect of vaulting pole, has avoided the vaulting pole to the action of the tensile electric core of both sides motion hard to avoid the uneven phenomenon of atress under the abundant tensile prerequisite of assurance electric core.

2. The utility model relates to a battery blanking flattening device, which adds a transition flattening process before prepressing and forming the battery core, so as to facilitate the release of stress inside the battery core; through multiple transition flattening molding, the internal stress condition of the finished product battery core is improved, and the phenomenon of local stress concentration in the battery core is avoided.

3. The utility model relates to a battery unloading flattening device is by four group's fixture fixed electric cores simultaneously, at the in-process that rolls up the needle backset, electric core and fixture's relative position can not change to utmost point ear position emergence offset after avoiding electric core pre-compaction.

4. The utility model relates to a battery unloading flattening device adopts fixture to carry out the centre gripping fixed time to electric core, carries out the centre gripping fixed to inside diaphragm head to at the in-process that rolls up the needle back-off, avoided the risk that the diaphragm was taken out by rolling up the needle.

Drawings

Fig. 1 is a schematic overall front view structure diagram of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of the blanking station of the utility model;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is the utility model discloses the main view structure sketch map of station is flattened in transition.

In the figure: 100-a stand vertical plate; 200-winding needle; 300-a blanking station; 301-horizontal base; 302-horizontally moving the base; 303-vertically moving the base; 304-a rear slide base; 305-a front end slide base; 306-a clamping base; 307-fixed support columns; 3071-a stay bar; 308-moving the support column; 3081-clamping head; 400-a cell transfer mechanism; 500-prepressing station; 600-transition flattening station; 601-a substrate; 602-vertical sliding support; 603-briquetting; 604-a buffer support; 605-a slide rail; 606-telescopic loop bar; 607-buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution, a blanking flattening device for battery production, comprising a rack vertical plate 100, a winding needle 200, a cell transferring mechanism 400 and a pre-pressing station 500, wherein the cell transferring mechanism 400 is provided with a clamping jaw for clamping a cell, and further comprises a blanking station 300 and a transitional flattening station 600, the blanking station 300 comprises a horizontal base 301, the rear end of the horizontal base 301 is vertically and fixedly connected to the front surface of the rack vertical plate 100, the top surface of the horizontal base 301 is provided with a horizontal moving base 302 moving along the longitudinal direction, the horizontal moving base 302 is provided with a vertical moving base 303 moving along the vertical direction, the front end and the rear end of the vertical moving base 303 are respectively provided with a front end sliding base 305 and a rear end sliding base 304 moving along the transverse direction, the two ends of the front end sliding base 305 and the rear end sliding base 304 are respectively provided with a clamping base 306 moving along the longitudinal direction, the inner end of the top of the clamping base 306 is fixedly connected with a fixed supporting column 307, the outer end of the top of the clamping base 306 is provided with a movable supporting column 308 which moves longitudinally, the top end of the fixed supporting column 307 is vertically and fixedly connected with a supporting rod 3071, and the top end of the movable supporting column 308 is vertically and fixedly connected with a clamping head 3081;

the transitional flattening station 600 comprises a substrate 601, the back of the substrate 601 is fixedly connected with the vertical plate 100 of the frame, vertical sliding supports 602 which move relatively in the vertical direction are arranged at the top end and the bottom end of the substrate 601, and pressing blocks 603 are connected to the vertical sliding supports 602.

In this embodiment, the positions of the top and the bottom of the front surface of the substrate 601 near to the two sides are respectively provided with a slide rail 605 along the vertical direction, the vertical sliding supports 602 are respectively and correspondingly clamped on the slide rails 605 in a sliding manner, and the top and the bottom of the substrate 601 are respectively and correspondingly provided with a power mechanism for driving the vertical sliding supports 602 to slide up and down along the slide rails 605.

In this embodiment, the middle of the opposite surface of the vertical sliding support 602 is connected with a buffer spring 607, the other end of the buffer spring 607 is connected with a buffer support 604, the two ends of the buffer support 604 are correspondingly and slidably clamped with the sliding rail 605, and the pressing block 603 is fixedly connected to the middle of the opposite surface of the buffer support 604.

In this embodiment, the inside of the buffer spring 607 is sleeved with a telescopic rod 606, and two ends of the telescopic rod 606 are vertically and fixedly connected to the vertical sliding support 602 and the buffer support 604 respectively.

In this embodiment, the power mechanism disposed on the substrate 601 is one of a screw driving mechanism, a cam driving mechanism, or a pneumatic telescopic mechanism.

In this embodiment, the section of the clamping jaw provided in the battery cell transfer mechanism 400 is one of circular or rectangular.

In this embodiment, the cross-section of the gripping head 3081 is one of circular, semicircular, or elliptical.

In this embodiment, the horizontal base 301 is provided with a screw driving mechanism for driving the horizontal moving base 302 to slide on the top surface of the horizontal base 301 in a reciprocating manner in the longitudinal direction.

In this embodiment, the horizontal moving base 302 is provided with a screw driving mechanism for driving the vertical moving base 303 to slide back and forth in the vertical direction.

In this embodiment, the front end and the rear end of the vertical moving base 303 are respectively provided with a pneumatic telescopic cylinder for driving the front end sliding base 305 and the rear end sliding base 304 to slide in a reciprocating manner in the transverse direction, the two ends of the front end sliding base 305 and the rear end sliding base 304 are respectively provided with a pneumatic telescopic cylinder for driving the corresponding clamping base 306 to reciprocate in the longitudinal direction, and the clamping base 306 is respectively provided with a pneumatic telescopic cylinder for driving the moving support column 308 to reciprocate in the longitudinal direction.

The working principle is as follows: after the cell winding process is completed, the corresponding driving mechanism drives the horizontal moving base 302, the vertical moving base 303, the rear end sliding base 304, the front end sliding base 305, the clamping base 306 and the moving support column 308 to perform corresponding motions, so that the support rods 3071 on the front end sliding base 305 and the rear end sliding base 304 are respectively inserted into the cell from two sides of the front end and the rear end of the winding needle 200, and the clamping heads 3081 are respectively arranged at two sides of the front end and the rear end of the cell; then the movable support rod 308 drives the clamping head 3081 to move towards the direction of the electric core, so that the clamping head 3081 and the corresponding support rod 3071 clamp and fix the two side positions of the front end and the rear end of the electric core; then, the winding needle 200 is pushed out of the inner cavity of the battery cell backwards to complete the blanking process; then, the battery cell is moved to the position of the transitional flattening station 600 through the relative movement of the horizontal moving base 302 and the vertical moving base 303, and the battery cell is just positioned in the middle of the upper and lower pressing blocks 603; the vertical sliding support 602 and the buffer support 604 respectively slide along the slide rail 605, so that the pressing block 603 respectively performs a transition flattening process towards the top and the bottom of the battery cell; while the transition flattening is performed, the clamping base 306 moves towards the two ends of the front end sliding base 305 and the rear end sliding base 304 respectively, so that the battery cell is pressed into an "∞" shape; at this time, the clamping jaws of the cell transfer mechanism 400 clamp two sides of the cell, and then the support rod 3071 and the clamping head 3081 are respectively separated from the cell and restored to the original position through the corresponding movements of the horizontal moving base 302, the vertical moving base 303, the rear end sliding base 304, the front end sliding base 305, the clamping base 306 and the moving support column 308 of the blanking station 300; the cell is transferred to the pre-pressing station 500 by the cell transfer mechanism 400 to complete the pre-pressing process of the cell.

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

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides an unloading flattening device for battery production, includes frame riser (100), book needle (200), electric core transfer mechanism (400) and pre-compaction station (500), electric core transfer mechanism (400) are provided with the clamping jaw that is used for centre gripping electric core, its characterized in that still includes:

a blanking station (300) and

the blanking station (300) comprises a horizontal base (301), the rear end of the horizontal base (301) is vertically and fixedly connected to the front face of the stand vertical plate (100), a horizontal moving base (302) which moves longitudinally is arranged on the top face of the horizontal base (301), a vertical moving base (303) which moves vertically is arranged on the horizontal moving base (302), a front end sliding base (305) and a rear end sliding base (304) which move transversely are respectively arranged at the front end and the rear end of the vertical moving base (303), a longitudinally moving clamping base (306) is respectively arranged at two ends of the front end sliding base (305) and the rear end sliding base (304), a fixed support column (307) is fixedly connected to the inner end of the top of the clamping base (306), and a longitudinally moving support column (308) is arranged at the outer end of the top of the clamping base (306), the top end of the fixed supporting column (307) is vertically and fixedly connected with a supporting rod (3071), and the top end of the movable supporting column (308) is vertically and fixedly connected with a clamping head (3081);

the transition flattening station (600) comprises a substrate (601), the back of the substrate (601) is fixedly connected with the vertical plate (100) of the frame, vertical sliding supports (602) which move relatively in the vertical direction are arranged at the top end and the bottom end of the substrate (601), and pressing blocks (603) are connected to the vertical sliding supports (602).

2. The blanking and flattening device for battery production according to claim 1, characterized in that: the vertical sliding support is characterized in that sliding rails (605) are respectively arranged at the positions, close to the two sides, of the top and the bottom of the front surface of the base plate (601) in the vertical direction, the vertical sliding supports (602) are correspondingly and slidably clamped on the sliding rails (605), and power mechanisms for driving the vertical sliding supports (602) to slide up and down along the sliding rails (605) are correspondingly arranged at the top end and the bottom end of the base plate (601) respectively.

3. The blanking and flattening device for battery production according to claim 2, characterized in that: the middle part of the opposite face of the vertical sliding support (602) is connected with a buffer spring (607), the other end of the buffer spring (607) is connected with a buffer support (604), the two ends of the buffer support (604) are respectively correspondingly connected with the sliding rails (605) in a sliding clamping manner, and the pressing block (603) is fixedly connected to the middle part of the opposite face of the buffer support (604).

4. The blanking and flattening device for battery production according to claim 3, characterized in that: the buffer spring (607) is sleeved with a telescopic loop bar (606), and two ends of the telescopic loop bar (606) are respectively and fixedly connected with the vertical sliding support (602) and the buffer support (604) in a vertical mode.

5. The blanking and flattening device for battery production according to claim 4, characterized in that: the power mechanism arranged on the base plate (601) is one of a screw rod driving mechanism, a cam driving mechanism or a pneumatic telescopic mechanism.

6. The blanking and flattening device for battery production according to claim 1, characterized in that: the section of a clamping jaw arranged on the battery cell transferring mechanism (400) is one of circular or rectangular.

7. The blanking and flattening device for battery production according to claim 1, characterized in that: the cross section of the clamping head (3081) is one of circular, semicircular or elliptical.

8. The blanking and flattening device for battery production according to claim 1, characterized in that: and a lead screw driving mechanism for driving the horizontal moving base (302) to longitudinally and reciprocally slide on the top surface of the horizontal base (301) is arranged on the horizontal base (301).

9. The blanking and flattening device for battery production according to claim 1, characterized in that: and a lead screw driving mechanism for driving the vertical moving base (303) to slide in a reciprocating manner along the vertical direction is arranged on the horizontal moving base (302).

10. The blanking and flattening device for battery production according to claim 1, characterized in that: the pneumatic telescopic cylinder that front end sliding base (305) and rear end sliding base (304) transversely reciprocated sliding are provided with the drive respectively to front end and rear end on vertical moving base (303), the both ends of front end sliding base (305) and rear end sliding base (304) are provided with the drive respectively and correspond the pneumatic telescopic cylinder of vertical reciprocating motion is followed to centre gripping base (306), be provided with the drive respectively on centre gripping base (306) remove support column (308) along vertical reciprocating motion's pneumatic telescopic cylinder.

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