CN214043738U

CN214043738U - Clamping fusing device for pole piece of lithium battery

Info

Publication number: CN214043738U
Application number: CN202022946252.7U
Authority: CN
Inventors: 安建军
Original assignee: Guangdong Qianlan Technology Co ltd
Current assignee: Guangdong Qianlan Technology Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-08-24
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a clamping fusing device of a pole piece of a lithium battery, which comprises a winding device, a plurality of winding pins and a plurality of winding pins, wherein the winding pin is driven to rotate by a motor; the feeding device is arranged on two sides above the winding device and comprises a feeding clamp mechanism, a sliding block, a sliding rail and a first driving device, the feeding clamp mechanism is arranged on the sliding block, and the first driving device is used for driving the sliding block to slide back and forth along the sliding rail; the number of the diaphragm cutting devices is 2, the diaphragm cutting devices are respectively arranged on two sides below the winding device and comprise mounting brackets, guide driving devices, cutter driving devices and heating tubes; through setting up unfamiliar cutting device, through setting up the heating tube, heat the cutter before the cutter cuts off the diaphragm, the cutter after the heating enables the quick fusing of diaphragm when cutting off the diaphragm to enable the cutter and cut off the diaphragm fast, reduce the time of cutting off the diaphragm, thereby reduce the latency between twice convoluteing, with the production efficiency who improves electric core.

Description

Clamping fusing device for pole piece of lithium battery

Technical Field

The utility model relates to a battery winding equipment field, in particular to tight fusing device of clamp of pole piece of lithium cell.

Background

In the production of wound elements, two or more webs of material are wound together using a winding apparatus to form wound elements, such as cells and capacitor elements of lithium ion batteries. The lithium ion battery cell is a cylindrical battery cell formed by winding a positive plate, an upper diaphragm, a negative plate and a lower diaphragm. The capacitor element is a winding element formed by winding an aluminum foil, electrolytic paper and a guide pin, the guide pin is fixed on the aluminum foil, and the aluminum foil and the electrolytic paper are mainly wound together in the winding process.

The existing winding equipment generally comprises cutter mechanisms for cutting off the material strips after winding is completed, the existing winding equipment cuts off the material strips after winding elements complete winding, the service life of the traditional cutter is short, the cutter needs to be replaced after long-time cutting for multiple times, and the cutter is poor in cutting quality in the service cycle and cannot guarantee that the material strips are smooth in cuts and influence the quality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tight fuse device of clamp of pole piece of lithium cell can guarantee that the incision levels, increase of service life improves the cutting quality.

According to the utility model discloses a tight fuse device of clamp of pole piece of lithium cell of first aspect embodiment, include:

the winding device comprises a winding needle seat driven by a motor to rotate, and a plurality of winding needles are uniformly distributed on the winding needle seat;

the feeding devices are arranged at two sides above the winding device respectively, and comprise feeding clamp mechanisms, sliding blocks, sliding rails and first driving devices, the feeding clamp mechanisms are arranged on the sliding blocks, and the first driving devices are used for driving the sliding blocks to slide back and forth along the sliding rails;

the number of the diaphragm cutting devices is 2, the diaphragm cutting devices are respectively arranged on two sides below the winding device and comprise mounting brackets, guide driving devices, cutter driving devices and heating tubes; the diaphragm cutting device is characterized in that a guide wheel for guiding a diaphragm is connected to the moving end of the guide driving device, the moving path of the cutter driving device is parallel to the moving path of the guide driving device, a cutter frame is fixed to the moving end of the cutter driving device, a cutter for cutting off the diaphragm is installed on the cutter frame, and the heating tube is fixed to the cutter frame.

According to the utility model discloses tight fuse device of clamp of pole piece of lithium cell has following beneficial effect at least: in the embodiment, the winding device is arranged to position the workpiece and rotate the workpiece, so that the winding needle of the winding station can directly start to wind the next winding element, the interval time between the two winding elements is shortened, and the production efficiency is improved; the automatic conveying of the material belt is realized through the feeding device, and the material rolling efficiency is improved; through setting up unfamiliar cutting device, through setting up the heating tube, heat the cutter before the cutter cuts off the diaphragm, the cutter after the heating enables the quick fusing of diaphragm when cutting off the diaphragm to enable the cutter and cut off the diaphragm fast, reduce the time of cutting off the diaphragm, thereby reduce the latency between twice convoluteing, with the production efficiency who improves electric core. In addition, the stress of the cutter can be reduced by cutting off the diaphragm by the cutter heated by the heating tube, so that the service life of the cutter is prolonged.

According to some embodiments of the utility model, material feeding unit still includes lead screw and threaded connection nut on the lead screw, and the slider is fixed on the nut, and a drive arrangement drive lead screw rotates to make the nut drive the slider slide on the slide rail.

According to some embodiments of the utility model, sliding connection has the removal panel on the installing support, leading wheel and cutter drive arrangement set up in the one end of removal panel, the other end of removal panel is connected direction drive arrangement's removal end, just the cutter is located when not stretching out the leading wheel with between the cutter drive arrangement.

According to some embodiments of the utility model, diaphragm cutting device is still including setting up guide rail on the installing support, sliding connection has the guide block on the guide rail, it fixes to remove the panel on the guide block.

According to some embodiments of the utility model, the guide rail includes mutual parallel arrangement's first guide rail and second guide rail, the guide block including respectively with first guide rail and second guide rail sliding connection's first guide block and second guide block.

According to some embodiments of the utility model, the other end of removal panel is equipped with stop gear, stop gear includes spacing mount pad and installs gag lever post on the spacing mount pad, spacing mount pad is fixed on the terminal surface of removal panel, the direction drive arrangement drive when removing the panel motion to preset position, the gag lever post with the installing support butt.

According to some embodiments of the utility model, the other end of moving panel still is equipped with buffer gear, buffer gear is including buffering mount pad and fixing buffer beam on the buffering mount pad, buffer gear is used for the gag lever post with play the cushioning effect before the installing support butt.

According to some embodiments of the utility model, gag lever post and buffer beam can follow respectively direction of motion adjustment position of direction drive arrangement.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of a feeding device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a diaphragm cutting device according to an embodiment of the present invention;

fig. 4 is another schematic structural diagram of a diaphragm cutting device according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, 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 function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, according to the utility model discloses a tight fuse device of clamp of pole piece of lithium cell of first aspect embodiment includes:

the winding device 100 comprises a winding needle seat 110 driven by a motor to rotate, wherein a plurality of winding needles 111 are uniformly distributed on the winding needle seat 110; the rolling needle seat 110 is provided with one or more than two rolling needles 111, the rolling needles 111 are rotatably arranged on the rolling needle seat 110, and the rolling needles 111 are driven by the rolling needles 111 to rotate so as to roll materials. When there is only one winding needle 111, the winding needle 111 can be inserted into the septum cutting device 300 to perform winding. When the needle winding seat 110 is provided with a plurality of winding needles 111, each winding needle 111 is arranged along the rotation direction of the needle winding seat 110, and each time the needle winding seat 110 rotates, the winding needle 111 on the needle winding seat is driven to rotate one station. After the winding needle 111 is wound to the set specification at the winding station, the winding needle seat 110 rotates, and the winding needle 111 rotates to the second station. After the winding needle 111 is transferred from the winding station to the second station, the separator cutting device 300 cuts the material tape.

The number of the feeding devices 200 is 2, the feeding devices are respectively arranged on two sides above the winding device 100, and each feeding device comprises a feeding clamp mechanism, a sliding block 205, a sliding rail 204 and a first driving device 208, the feeding clamp mechanism is arranged on the sliding block 205, and the first driving device 208 is used for driving the sliding block 205 to slide back and forth along the sliding rail 204; the feed nip mechanism holds the strip of material and is driven by the slide 205 to feed the strip of material to the membrane cutting device 300. The feeding and clamping mechanism comprises two material clamping plates 207 and a material clamping plate 207 driving device for driving the two material clamping plates 207 to open and close, and the material belt passes through between the two material clamping plates 207. In the feeding process of the feeding device 200, the two material clamping plates 207 of the feeding clamping mechanism are closed to clamp the material strip, and the sliding block 205 slides along the sliding rail 204 to drive the material strip to be conveyed towards the feeding direction. During the winding process of the winding device 100, the two material clamping plates 207 of the feeding clamping mechanism are opened to enable the material strip to pass through smoothly.

The membrane cutting devices 300 are 2 in number, are respectively arranged at two sides below the winding device 100 and comprise mounting brackets 301, guide driving devices 320, cutter driving devices 340 and heating tubes 360; a guide wheel 330 for guiding the diaphragm is connected to a moving end of the guide driving device 320, a moving path of the cutter driving device 340 is parallel to a moving path of the guide driving device 320, a cutter holder 350 is fixed to a moving end of the cutter driving device 340, a cutter 351 for cutting the diaphragm is mounted on the cutter holder 350, and the heat pipe 360 is fixed to the cutter holder 350. When the diaphragm is wound, the guide driving device 320 drives the guide wheel 330 to approach the diaphragm to guide the diaphragm. After completion of the winding, the cutter driving device 340 drives the cutter 351 close to the separator to cut the separator. Specifically, the cutter 351 is provided on the cutter holder 350 so as to be adjustable in position, and the temperature at which the cutter 351 cuts the separator can be adjusted by adjusting the relative position between the cutter 351 and the heating tube 360.

In the embodiment, the winding device 100 is arranged to position the workpiece and rotate the workpiece, so that the winding needle 111 of the winding station can directly start to wind the next winding element, the interval time between two winding elements is reduced, and the production efficiency is improved; the automatic conveying of the material belt is realized through the feeding device 200, and the material rolling efficiency is improved; through setting up unfamiliar cutting device 300, through setting up heating tube 360, heat cutter 351 before cutter 351 cuts off the diaphragm, cutter 351 after the heating enables the diaphragm and fuses fast when cutting off the diaphragm to enable cutter 351 and cut off the diaphragm fast, reduce the time of cutting off the diaphragm, thereby reduce the latency between coiling twice, in order to improve the production efficiency of electric core. In addition, the cutting of the diaphragm by the cutter 351 heated by the heating tube 360 can also reduce the stress of the cutter 351, thereby prolonging the service life of the cutter 351.

According to some embodiments of the utility model, material feeding unit 200 still includes lead screw 202 and threaded connection nut 203 on lead screw 202, and slider 205 is fixed on nut 203, and first drive arrangement 208 drives lead screw 202 and rotates, and first drive arrangement 208 adopts the motor, and the output shaft of motor is connected with lead screw 202's one end through a shaft coupling 201, and the lead screw 202 other end rotates the setting, and slider 205 is fixed on nut 203, and lead screw 202 lateral part is located to slide rail 204, and motor drive lead screw 202 rotates to make nut 203 drive slider 205 slide on the slide rail 204.

According to some embodiments of the present invention, in order to ensure that the cutter 351 does not touch the diaphragm when the guide wheel 330 guides, the mounting bracket 301 is slidably connected with the moving panel 311, the guide wheel 330 and the cutter driving device 340 are disposed at one end of the moving panel 311, the other end of the moving panel 311 is connected to the moving end of the guide driving device 320, and the cutter 351 is located between the guide wheel 330 and the cutter driving device 340 when not extending.

According to some embodiments of the present invention, the diaphragm cutting device 300 further comprises a guide rail 312 disposed on the mounting bracket 301, a guide block 313 is slidably connected to the guide rail 312, and the movable panel 311 is fixed on the guide block 313. When the guiding driving device 320 works, the moving panel 311 extends along the guide rail 312 to drive the guide wheel 330 and the cutter driving device 340 to move together, and the cutter 351 is located behind the guide wheel 330 when not extending, so that the cutter 351 cannot contact with the membrane while the membrane is guided by the guide wheel 330. When the diaphragm needs to be cut off, the cutter driving device 340 works, and the cutter 351 is heated by the heating tube 360 to rapidly cut off the diaphragm and then reset.

According to some embodiments of the present invention, in order to make the movement of the movable panel 311 more stable, the guide rail 312 includes a first guide rail (not shown) and a second guide rail (not shown) which are parallel to each other, and the guide block 313 includes a first guide block and a second guide block which are slidably connected to the first guide rail and the second guide rail, respectively.

According to some embodiments of the present invention, in order to make the position where the movable panel 311 stays more accurate, the other end of the movable panel 311 is provided with a limiting mechanism 370, the limiting mechanism 370 includes a limiting mounting seat and a limiting rod 371 installed on the limiting mounting seat, the limiting mounting seat is fixed on the end surface of the movable panel 311, the guiding driving device 320 drives when the movable panel 311 moves to a predetermined position, the limiting rod 371 and the mounting bracket 301 abut.

According to some embodiments of the utility model, in order to make the motion of moving panel 311 more steady, the other end of moving panel 311 still is equipped with buffer gear, buffer gear is including buffering mount pad and fixing buffer rod 381 on the buffering mount pad, buffer gear is used for gag lever post 371 with play the cushioning effect before installing support 301 butt.

According to some embodiments of the present invention, the position of the stop rod 371 and the buffer rod 381 can be adjusted along the moving direction of the guiding driving device 320 respectively to match the stroke of the moving panel 311.

The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a tight fuse device of clamp of pole piece of lithium cell which characterized in that includes:

the winding device (100) comprises a winding needle seat (110) driven by a motor to rotate, wherein a plurality of winding needles (111) are uniformly distributed on the winding needle seat (110);

the feeding devices (200) are arranged in 2 numbers, are respectively arranged on two sides above the winding device (100), and comprise feeding clamp mechanisms, sliding blocks (205), sliding rails (204) and first driving devices (208), wherein the feeding clamp mechanisms are arranged on the sliding blocks (205), and the first driving devices (208) are used for driving the sliding blocks (205) to slide back and forth along the sliding rails (204);

the membrane cutting devices (300) are arranged in 2 numbers, are respectively arranged at two sides below the winding device (100), and comprise mounting brackets (301), guide driving devices (320), cutter driving devices (340) and heating tubes (360); the moving end of the guide driving device (320) is connected with a guide wheel (330) for guiding the diaphragm, the moving path of the cutter driving device (340) is parallel to the moving path of the guide driving device (320), the moving end of the cutter driving device (340) is fixed with a cutter frame (350), a cutter (351) for cutting off the diaphragm is installed on the cutter frame (350), and the heating tube (360) is fixed on the cutter frame (350).

2. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 1, wherein: the feeding device (200) further comprises a lead screw (202) and a nut (203) in threaded connection with the lead screw (202), the sliding block (205) is fixed on the nut (203), and the first driving device (208) drives the lead screw (202) to rotate, so that the nut (203) drives the sliding block (205) to slide on the sliding rail (204).

3. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 1, wherein: the mounting bracket (301) is connected with a movable panel (311) in a sliding mode, the guide wheel (330) and the cutter driving device (340) are arranged at one end of the movable panel (311), the other end of the movable panel (311) is connected to the movable end of the guide driving device (320), and the cutter (351) is located between the guide wheel (330) and the cutter driving device (340) when not extending out.

4. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 3, wherein: the diaphragm cutting device (300) further comprises a guide rail (312) arranged on the mounting bracket (301), a guide block (313) is connected to the guide rail (312) in a sliding mode, and the moving panel (311) is fixed to the guide block (313).

5. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 4, wherein: the guide rail (312) comprises a first guide rail and a second guide rail which are arranged in parallel, and the guide block (313) comprises a first guide block and a second guide block which are respectively connected with the first guide rail and the second guide rail in a sliding manner.

6. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 3, wherein: the other end of removal panel (311) is equipped with stop gear (370), stop gear (370) include spacing mount pad and install gag lever post (371) on the spacing mount pad, spacing mount pad is fixed on the terminal surface of removal panel (311), direction drive arrangement (320) drive when removing panel (311) and moving to preset position, gag lever post (371) with installing support (301) butt.

7. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 6, wherein: the other end of moving panel (311) still is equipped with buffer gear, buffer gear is including buffering the mount pad and fixing buffer rod (381) on the buffering mount pad, buffer gear is used for gag lever post (371) with play the cushioning effect before installing support (301) butt.

8. The clamping fusing device of the pole piece of the lithium battery as claimed in claim 7, wherein: the limiting rod (371) and the buffer rod (381) can be respectively adjusted in position along the movement direction of the guide driving device (320).