CN205921044U - Electricity core winder - Google Patents

Abstract

The utility model belongs to the technical field of lithium cell processing equipment technique and specifically relates to indicate an electricity core winder, including rolling up the needle device, should roll up the needle device and include roll up needle subassembly mechanism and can dismantle the fixed needle file of rolling up of being connected with this roll up needle subassembly mechanism, still include the board, slide and set up in the diaphragm frame of board, set up in the diaphragm cutting device of this diaphragm frame top, slide and set up in the commentaries on classics needle of board and remove the seat, remove the fixing base that the seat set up and be used for the drive to roll up needle device pivoted commentaries on classics needle actuating mechanism for changeing the needle, the one end of rolling up needle subassembly mechanism rotationally sets up in changeing the needle and removing the seat, fixed needle. The utility model discloses simple structure is convenient for maintain to reduce use cost, it is convenient just to place, negative pole piece and diaphragm, and the rolling is reliable, and compact structure is convenient for transport and installation, satisfies the demand of production.

Description

A core winding machine

technical field

The utility model relates to the technical field of lithium battery processing equipment, in particular to a battery winding machine.

Background technique

The cell winding machine is used to wind the separator and positive and negative electrode sheets to obtain battery cells. The existing battery winding machine mainly includes a needle winding device for tightening and winding the separator and the positive and negative electrode sheets, the needle winding drive device, the automatic positive and negative electrode sheet loading device, and the like.

In the process of subsequent processing of lithium battery cells, there are often positive and negative electrode sheets and separators scattered, and some unqualified cells need to be wound again, and the existing cell winding machine is used to wind these This type of electric core does not meet the needs of production due to the complex structure of the winding machine, high price, high use cost, and high maintenance cost.

Contents of the invention

The technical problem to be solved by the utility model is to provide a battery winding machine with simple structure, convenient maintenance and low use cost.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A battery winding machine, comprising a needle winding device, the needle winding device includes a needle winding assembly mechanism and a fixed needle winding seat detachably connected to the needle winding assembly mechanism, and also includes a machine table, a diaphragm frame slidably arranged on the machine table , the diaphragm cutting device arranged above the diaphragm frame, the rotating needle moving seat slidably arranged on the machine table, the fixed seat set relative to the rotating needle moving seat, and the rotating needle driving mechanism for driving the needle winding device to rotate, the winding needle One end of the needle assembly mechanism is rotatably arranged on the rotating needle moving seat, and the fixed roll needle seat is rotatably arranged on the fixed seat.

Wherein, the diaphragm frame includes a discharge slide seat and three winding rods arranged side by side on the discharge slide seat, and the machine table is provided with a discharge guide rail, and the discharge slide seat is slidably arranged on the discharge guide rail.

Wherein, the diaphragm cutting device includes a cutting cylinder and a cutting knife connected with the cutting cylinder, and the cutting knife is located above the diaphragm holder.

Wherein, the machine table is provided with a moving seat guide rail, and the rotating needle moving seat is slidably arranged on the moving seat guide rail.

Wherein, the needle rolling assembly mechanism includes a rolling needle mounting seat, a movable rolling needle, a fixed rolling needle and a movable pressing block of the diaphragm, and one end of the movable rolling needle, the fixed rolling needle and the movable pressing block of the diaphragm are all arranged on the rolling needle mounting seat , when winding the battery core, the other end of the movable coil needle, the fixed coil needle and the diaphragm movable briquetting block are inserted into the fixed coil needle seat; the movable coil needle is provided with a briquetting groove for accommodating the diaphragm movable briquetting block, and the The rolling needle mounting seat is provided with a pressing handle for pressing the movable pressing block of the diaphragm to retract into the pressing block groove.

Wherein, the needle-rotating driving mechanism includes a power moving seat arranged on one side of the winding needle assembly mechanism, a driving motor arranged on the power moving seat, a driving wheel drivingly connected with the driving motor, a driven wheel connected with the winding needle assembly mechanism, And a power cylinder for driving the power moving seat to move and make the driving wheel away from or close to the driven wheel.

Among them, it also includes a feeding platform arranged on the machine platform.

Among them, it also includes pole piece boxes arranged on both sides under the machine table.

Among them, it also includes a diaphragm holder arranged on one side of the machine table.

Wherein, it also includes an upper grating sensor arranged on the diaphragm cutting device, and the machine table is provided with a lower grating sensor corresponding to the upper grating sensor.

The beneficial effects of the utility model:

When working, the needle winding device and the diaphragm holder are all located under the diaphragm cutting device. First, fold a diaphragm around the diaphragm frame to form two layers of diaphragms, stack the positive and negative electrodes on the two layers of diaphragms at intervals, use the rolling needle device to clamp the diaphragm, positive and negative electrodes, and the diaphragm cutting device will The membrane at the fold is cut so that the two membranes form two spacers. After the spacer is cut, manually or other driving mechanism moves the diaphragm frame to the right side of the machine to make room for the needle winding device to rotate, and the needle-rotating driving mechanism drives the needle winding device to rotate the winding diaphragm, positive electrode sheet and negative electrode sheet, and finally Form the core. After the winding is completed, manual or other driving mechanism will move the rotating needle moving seat and the rolling needle assembly mechanism to the left side of the machine table. At this time, the needle winding assembly mechanism is separated from the fixed needle winding seat, so that the electric core can be easily removed from the needle winding assembly mechanism. Unloading the battery cell manually or by other means completes the winding of a battery cell. The utility model is simple in structure, easy to maintain, thereby reducing the use cost, it is convenient to place the positive and negative electrode sheets and diaphragm, reliable to roll, and compact in structure, convenient for transportation and installation, and meets the needs of production.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a three-dimensional structure schematic diagram of the utility model when winding the electric core.

Fig. 3 is a schematic diagram of the three-dimensional structure of the utility model when unloading.

Fig. 4 is a three-dimensional structural schematic diagram of the needle winding device described in the present invention.

Fig. 5 is an exploded schematic view of the three-dimensional structure of the needle rolling device of the present invention.

Fig. 6 is a simplified schematic diagram of the operating principle of the diaphragm holder, the diaphragm cutting device and the needle rolling device described in the present invention.

Fig. 7 is a three-dimensional structural schematic view of the needle rolling device, the needle rotating drive mechanism, the diaphragm holder and the diaphragm cutting device of the present invention.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model.

As shown in Figures 1 to 7, a battery winding machine includes a needle winding device 1, the needle winding device 1 includes a needle winding assembly mechanism 11 and a fixed needle winding seat 12 detachably connected to the needle winding assembly mechanism 11 , also includes a machine platform 2, a diaphragm frame 3 slidably arranged on the machine platform 2, a diaphragm cutting device 4 arranged above the diaphragm frame 3, a rotating needle moving seat 5 slidingly arranged on the machine platform 2, and a moving needle moving seat relative to the rotating needle 5 provided with the fixed seat 6 and the rotating needle drive mechanism 7 for driving the needle winding device 1 to rotate, one end of the needle winding assembly mechanism 11 is rotatably arranged on the rotating needle moving seat 5, and the fixed needle winding seat 12 can It is rotatably arranged on the fixed base 6 .

In actual application, the rotating needle moving seat 5 can move left and right on the machine table 2 with the winding needle assembly mechanism 11, so as to facilitate unloading of the rolled battery cells. The diaphragm holder 3 can also move left and right on the machine platform 2, so as to make room for the needle winding device 1 to rotate.

During operation, as shown in FIG. 1 , both the needle winding device 1 and the diaphragm holder 3 are located below the diaphragm cutting device 4 . First, fold a diaphragm 01 around the diaphragm frame 3 to form two layers of diaphragms, stack the positive electrode sheet 02 and the negative electrode sheet 03 on the two layers of diaphragms at intervals, and use the needle rolling device 1 to clamp the diaphragm 01, positive electrode sheet 02 and The negative electrode sheet 03 and the diaphragm cutting device 4 cut off the diaphragm 01 at the fold, so that the two layers of diaphragms form two spacers.

As shown in Figure 2, after the spacer is cut, the diaphragm frame 3 is moved to the right side of the machine table 2 manually or by other driving mechanism, so as to make room for the rotation of the needle winding device 1, and the needle rotation driving mechanism 7 drives the needle winding device 1 to rotate The separator 01, the positive electrode sheet 02 and the negative electrode sheet 03 are rolled up to finally form a cell.

As shown in FIG. 3 , after the winding is completed, the needle moving seat 5 and the needle rolling assembly mechanism 11 are moved to the left of the machine table 2 manually or by other driving mechanisms. At this time, the needle winding assembly mechanism 11 is separated from the fixed needle winding seat 12 , so that the electric core can be easily removed from the needle winding assembly mechanism 11 . Unloading the battery cell manually or by other means completes the winding of a battery cell.

The utility model is simple in structure, easy to maintain, thereby reducing the use cost, it is convenient to place the positive and negative electrode sheets and diaphragm, reliable to roll, and compact in structure, convenient for transportation and installation, and meets the needs of production.

In this embodiment, the diaphragm frame 3 includes a discharging sliding seat 31, three winding rods 32 arranged in parallel on the discharging sliding seat 31, the machine table 2 is provided with a discharging guide rail 21, and the discharging sliding seat 31 is slidably arranged on the discharging guide rail 21.

In this embodiment, the diaphragm cutting device 4 includes a cutting cylinder 41 and a cutting knife 42 connected to the cutting cylinder 41 , and the cutting knife 42 is located above the diaphragm holder 3 . In this embodiment, the machine table 2 is provided with a moving seat guide rail 22 , and the rotating needle moving seat 5 is slidably disposed on the moving seat guide rail 22 .

In this embodiment, the needle winding assembly mechanism 11 includes a winding needle mounting seat 13, a movable winding needle 14, a fixed winding needle 15 and a diaphragm movable pressure block 16, and the movable winding needle 14, the fixed winding needle 15 and the diaphragm movable pressure block One end of the block 16 is arranged on the winding needle mounting seat 13. When winding the electric core, the other ends of the movable winding needle 14, the fixed winding needle 15 and the diaphragm movable pressing block 16 are inserted into the fixed winding needle seat 12; The needle 14 is provided with a briquetting groove 141 for accommodating the movable briquetting block 16 of the diaphragm, and the rolling needle mounting base 13 is provided with a pressing handle 131 for pressing the movable briquetting block 16 of the diaphragm to retract into the briquetting groove 141 . The structure in which the pressing handle 131 presses the movable pressing block 16 of the diaphragm can be realized by using a spring, which belongs to the commonly used prior art, so it will not be repeated here.

When in use, press the handle 131 to retract the diaphragm movable briquetting block 16 into the briquetting block groove 141, then place the diaphragm 01, the positive electrode sheet 02 and the negative electrode sheet 03 between the diaphragm movable briquetting block 16 and the fixed winding needle 15, and then The pressing handle 131 is released, and the diaphragm movable pressing block 16 and the fixed winding needle 15 clamp the diaphragm 01 , the positive electrode sheet 02 and the negative electrode sheet 03 .

As shown in Figure 6, after the diaphragm 01 bypasses one of the winding rods 32, it is spread on the other two outer winding rods 32, and the movable pressing block 16 and the fixed winding needle 15 of the diaphragm 01, the positive electrode piece 02 and the negative electrode The sheet 03 is clamped, the cutter 42 cuts off the diaphragm 01, and then withdraws from the diaphragm holder 3, and the rotating needle drive mechanism 7 drives the needle winding device 1 to rotate and wind the diaphragm 01, the positive electrode sheet 02 and the negative electrode sheet 03.

In this embodiment, the rotating needle driving mechanism 7 includes a power moving seat 71 arranged on one side of the winding needle assembly mechanism 11, a driving motor 72 arranged on the power moving seat 71, a driving wheel 73 drivingly connected to the driving motor 72, The driven wheel 74 connected with the needle rolling assembly mechanism 11 and the power cylinder 75 used to drive the power moving seat 71 to move and make the driving wheel 73 away from or close to the driven wheel 74 .

During work, the driving motor 72 drives the driving wheel 73 to rotate, and the power cylinder 75 pushes the power moving seat 71 to move, so that the driving wheel 73 is close to the driven wheel 74, and drives the driven wheel 74 to rotate, so that the driven wheel 74 drives the needle winding assembly mechanism 11 Rotate, so that the winding needle assembly mechanism 11 winds up the electric core. After winding is finished, power cylinder 75 promotes power moving seat 71 to move, and driving wheel 73 is far away from driven wheel 74, and driving wheel 73 separates with driven wheel 74, and the rolling needle assembly mechanism 11 stops rotating. The rotating needle driving mechanism 7 drives the driven wheel 74 to rotate through the friction between the driving wheel 73 and the driven wheel 74, and adopts a detachable drive to facilitate the movement and unloading of the rolling needle assembly mechanism 11.

In this embodiment, a discharge table 23 provided on the machine 2 is also included, which is convenient for placing the separator 01 , the positive electrode sheet 02 and the negative electrode sheet 03 when winding the battery cell. It also includes pole piece boxes 24 arranged on both sides below the machine platform 2, and a diaphragm holder 25 arranged on one side of the machine platform 2, which is convenient for placing diaphragm raw materials, positive electrode sheet raw materials and negative electrode sheet raw materials.

In this embodiment, an upper grating sensor 8 arranged on the diaphragm cutting device 4 is also included, and the machine table 2 is provided with a lower grating sensor 9 corresponding to the upper grating sensor 8 . Before the diaphragm cutting device 4 cuts the diaphragm 01, the upper grating sensor 8 and the lower grating sensor 9 detect whether there is manual operation or foreign matter, so as to ensure that the diaphragm 01 is cut under safe conditions and improve the safety of equipment use.

The above-mentioned embodiment is a preferred implementation of the utility model. In addition, the utility model can also be realized in other ways, and any obvious replacement is within the protection scope of the utility model without departing from the concept of the technical solution. within.

Claims (10)

1. A battery winding machine, comprising a needle winding device (1), the needle winding device (1) including a needle winding assembly mechanism (11) and a fixed needle winding seat detachably connected to the needle winding assembly mechanism (11) (12), characterized by: It also includes a machine platform (2), a diaphragm frame (3) slidably arranged on the machine platform (2), a diaphragm cutting device (4) arranged above the diaphragm frame (3), and a rotary device slidably arranged on the machine platform (2). The needle moving seat (5), the fixed seat (6) set relative to the rotating needle moving seat (5), and the rotating needle driving mechanism (7) for driving the needle rolling device (1) to rotate, One end of the needle winding assembly mechanism (11) is rotatably arranged on the rotating needle moving seat (5), and the fixed needle winding seat (12) is rotatably arranged on the fixing seat (6). 2. A cell winding machine according to claim 1, characterized in that: the diaphragm frame (3) includes a discharge sliding seat (31), three coils arranged in parallel on the discharge sliding seat (31) rod (32), The machine (2) is provided with a discharge guide rail (21), and the discharge sliding seat (31) is slidably arranged on the discharge guide rail (21). 3. A cell winding machine according to claim 1, characterized in that: the diaphragm cutting device (4) includes a cutting cylinder (41) and a cutting knife (42) connected to the cutting cylinder (41), The cutter (42) is located above the diaphragm frame (3). 4. A battery winding machine according to claim 1, characterized in that: the machine table (2) is provided with a moving seat guide rail (22), and the rotating needle moving seat (5) is slidably arranged on a moving seat rail (22). 5. A battery winding machine according to claim 1, characterized in that: the winding needle assembly mechanism (11) includes a winding needle mounting seat (13), a movable winding needle (14), a fixed winding needle ( 15) and diaphragm movable pressing block (16), One end of the movable winding needle (14), the fixed winding needle (15) and the diaphragm movable pressing block (16) are all set on the winding needle mounting seat (13). When winding the battery core, the movable winding needle (14) 1. Insert the other end of the fixed coil needle (15) and the diaphragm movable pressing block (16) into the fixed coil needle seat (12); The movable rolling needle (14) is provided with a pressing block groove (141) for accommodating the movable pressing block (16) of the diaphragm, and the rolling needle mounting seat (13) is provided with a pressing block for pressing the movable pressing block (16) of the diaphragm to retract. Push handle (131) for block slot (141). 6. A battery winding machine according to claim 1, characterized in that: the rotating needle driving mechanism (7) includes a power moving seat (71) arranged on one side of the winding needle assembly mechanism (11), The driving motor (72) arranged on the power moving seat (71), the driving wheel (73) drivingly connected with the driving motor (72), the driven wheel (74) connected with the winding needle assembly mechanism (11), and the drive wheel (74) for driving The power moving seat (71) moves and makes the driving wheel (73) away from or close to the power cylinder (75) of the driven wheel (74). 7. A cell winding machine according to claim 1, characterized in that it further comprises a discharge table (23) arranged on the machine table (2). 8 . The battery winding machine according to claim 1 , further comprising pole piece boxes ( 24 ) arranged on both sides below the machine table ( 2 ). 9. A cell winding machine according to claim 1, characterized in that it further comprises a diaphragm placing frame (25) arranged on one side of the machine table (2). 10. A cell winding machine according to claim 1, characterized in that it further comprises an upper grating sensor (8) arranged on the diaphragm cutting device (4), and the machine (2) is provided with The upper grating sensor (8) corresponds to the lower grating sensor (9).