CN108306026A - Battery winding equipment - Google Patents

Abstract

The present invention provides a battery winding device, wherein the battery winding device includes: at least two groups of feeding devices, each feeding device is used to output battery winding materials; The winding needle at the output end of the mechanism is provided with multiple winding positions, and the winding needle is used to wind the battery winding materials respectively output by at least two groups of feeding devices to different winding positions. Compared with the prior art, the battery winding equipment provided by the present invention simultaneously winds multiple batteries on one winding device, and feeds materials through multiple groups of feeding equipment, which can greatly improve the working efficiency of the winding device, thereby improving battery production efficiency.

Description

Battery Winding Equipment

technical field

The invention relates to the technical field of battery production equipment, in particular to battery winding equipment.

Background technique

Winding batteries have the advantages of super high-rate discharge capacity, excellent high and low temperature performance, stable high output voltage, safety and durability, etc., and are widely used in instruments and meters, electric tools, fitness equipment, medical equipment, solar lamps, power transmission Equipment, various backup power sources, and the automotive field. When winding the battery for production, the first pole piece, separator, second pole piece, and separator are stacked in sequence, and then wound in a winding device.

After the winding device has finished winding a battery, operations such as cutting and removal need to be performed before the next battery can be wound. However, although the time used for cutting and removing is shorter than the time for winding, it also affects the efficiency of production. Therefore, the technology of using a rotating mechanism to drive a plurality of winding needles in the winding device has occurred. A plurality of winding needles are arranged on a turntable, and when one winding needle is finished winding, the turntable is rotated, and the next winding needle is replaced for winding operation, and the winding needles that have been wound are performed for other operations.

However, this design method can still only complete the winding of one battery at the same time, and the number of winding needles working at the same time is small, and the efficiency of the improvement is low, which does not solve the problem of the slow operation speed of the winding device. , The problem of low production speed.

Contents of the invention

The embodiment of the present invention provides a battery winding device to solve the technical problems of the battery winding device in the prior art, which are slow in operation speed and low in production speed.

In order to solve the above problems, the embodiment of the present invention provides a battery winding equipment, the battery winding equipment includes: at least two sets of feeding equipment, each feeding equipment is used to output battery winding materials; The mechanism and the winding needle arranged at the output end of the rotating mechanism have multiple winding positions, and the winding needle is used to wind the battery winding materials respectively output by at least two groups of feeding devices to different winding positions.

Wherein, the battery winding material includes the first pole piece, the first diaphragm, the second pole piece and the second diaphragm, and the feeding equipment includes the first pole piece feeding equipment, the first diaphragm feeding equipment, the second pole piece, and the second pole piece. Sheet feeding equipment and second diaphragm feeding equipment, the first pole piece feeding equipment is used to output the first pole piece, the first diaphragm feeding equipment is used to output the first diaphragm, and the second pole piece feeding equipment is used to output The second pole piece, the second diaphragm feeding device is used to output the second diaphragm.

Wherein, the winding needle is provided with reinforcing ribs along its axial direction and/or length direction.

Wherein, among the feeding devices, the first pole piece feeding device, the first diaphragm feeding device, the second pole piece feeding device and the second diaphragm feeding device are sequentially arranged along the circumferential direction of the winding needle.

Among them, the first pole piece feeding equipment, the first diaphragm feeding equipment, the second pole piece feeding equipment and the second diaphragm feeding equipment are all equipped with tension equalization devices to stabilize the first pole piece and the first diaphragm. , the tension of the second pole piece and the second diaphragm.

Wherein, the tension balance device is a plurality of tension rollers to form distributed tension control.

Among them, the first pole piece feeding equipment and the second pole piece feeding equipment also include a pole piece discharging support shaft, a pole piece connecting belt part and a pole piece dust removal part, and the pole piece discharging support shaft is used to place the first pole piece The pole piece coil material of the pole piece or the second pole piece, the pole piece belt part is used to replace the pole piece coil material, and the pole piece dust removal part is used to remove the dust on the surface of the first pole piece or the second pole piece.

Among them, a pole piece feeding device is arranged between the first pole piece feeding device and the second pole piece feeding device and the needle, and the pole piece feeding device is used to drive the first pole piece and the second pole piece to move toward the needle .

Among them, the first diaphragm feeding device and the second diaphragm feeding device also include a diaphragm discharging support shaft, a static elimination part, and a diaphragm connecting part. The diaphragm discharging support shaft is used to place the diaphragm coil, and the static removal part is used Remove the static electricity of the first diaphragm and the second diaphragm, and the diaphragm tape part is used to replace the diaphragm roll material.

Wherein, the centerlines of the first pole piece, the first diaphragm, the second pole piece and the second diaphragm output by the same group of feeding devices are located on the same plane perpendicular to the length direction of the winding needle.

Compared with the prior art, the battery winding equipment provided by the present invention simultaneously winds multiple batteries on one winding device, and feeds materials through multiple groups of feeding equipment, which can greatly improve the working efficiency of the winding device, thereby improving battery production efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Figure 1 is a schematic side view of the battery winding device of the present invention;

FIG. 2 is a schematic top view of the battery winding device in FIG. 1;

Fig. 3 is a schematic structural view of the pole piece connecting portion in Fig. 1;

Fig. 4 is a schematic structural view of the pole piece dust removal part in Fig. 1;

Fig. 5 is a schematic block diagram of the side view structure of the coiling part of the battery coiled in Fig. 1 of the pole piece dust removal part.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following embodiments are only used to illustrate the present invention, but not to limit the scope of the present invention. Likewise, the following embodiments are only some but not all of the embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 2 , FIG. 1 is a schematic side view of the battery winding device of the present invention; FIG. 2 is a schematic top view of the battery winding device in FIG. 1 . The battery winding device comprises at least two sets of feeding devices 1 and one winding device 16 . In this embodiment, the number of feeding devices 1 is three. Specifically, each feeding device 1 is used to output battery winding materials. The winding device 16 includes a rotating mechanism 161 and a winding needle 162 arranged at the output end of the rotating mechanism 161. The winding needle 162 is provided with a plurality of winding positions. The winding material is wound to different winding positions.

Compared with the prior art, the battery winding equipment provided by the present invention simultaneously winds multiple batteries on one winding device, and feeds materials through multiple groups of feeding equipment, which can greatly improve the working efficiency of the winding device, thereby improving battery production efficiency.

Specifically, in other embodiments, the battery winding material includes a first pole piece 30a, a first separator 20a, a second pole piece 30b and a second separator 20b. The feeding device 1 includes a first pole piece feeding device 11 , a first diaphragm feeding device 12 , a second pole piece feeding device 13 and a second diaphragm feeding device 10 arranged in sequence. The first pole piece feeding device 11 is used to output the first pole piece 30a, the first diaphragm feeding device 12 is used to output the first diaphragm 20a, and the second pole piece feeding device 13 is used to output the second pole piece 30b. The two-diaphragm feeding device 10 is used to output the second diaphragm 20b. Wherein, the first pole piece feeding device 11, the first diaphragm feeding device 12, the second pole piece feeding device 13 and the second diaphragm feeding device 10 in each feeding device 1 are arranged along the circumferential order of the winding needle 162 set up. This arrangement can make the distances from the output of the first pole piece 30a, the first diaphragm 20a, the second pole piece 30b and the second diaphragm 20b to the winding needle 162 short and not interfere with each other. Of course, other reasonable arrangements may also be adopted. The first pole piece feeding device 11, the first diaphragm feeding device 12, the second pole piece feeding device 13 and the second diaphragm feeding device 10 can be located on the same side of the winding device 16, or can be located on the winding device 16 The two sides can be arranged according to the actual scene. For example, in this embodiment, the first pole piece feeding device 11 is located on one side of the winding device 16, the second pole piece feeding device 13 and the second diaphragm feeding device 10 are located on the other side of the winding device 16, The first membrane feed device 12 is located above the winding device 16 . The first pole piece feeding device 11 , the first diaphragm feeding device 12 , the second pole piece feeding device 13 and the second diaphragm feeding device 10 can be arranged on a panel or a fixed frame. The first pole piece 30 a is, for example, a positive pole piece or a negative pole piece, and the second pole piece 30 b is, for example, a negative pole piece or a positive pole piece. Generally speaking, when the winding is completed, the order from outside to inside is the first pole piece 30a, the first diaphragm 20a, the second pole piece 30b and the second diaphragm 20b.

The first pole piece feeding device 11, the second pole piece feeding device 13, the first diaphragm feeding device 12 and the second diaphragm feeding device 10 are all provided with a tension equalization device 102 to stabilize the first pole piece 30a, The tension of the first diaphragm 20a, the second pole piece 30b and the second diaphragm 20b. In this embodiment, the tension equalization device 102 is a plurality of tension rollers to form distributed tension control. Alternatively, other components such as sliders and guide rails can be added to the tension equalization device 102 , and the sliders and guide rails can cooperate with the tension roller 102 to adjust the tension. In other embodiments, other tension equalization devices can be used to control the tension of the first pole piece 30a, the first diaphragm 20a, the second pole piece 30b and the second diaphragm 20b.

The first pole piece feeding device 11 and the second pole piece feeding device 13 also include a pole piece discharging support shaft 110 , a pole piece connecting portion 111 and a pole piece dust removing portion 112 . The pole piece unwinding support shaft 110 is used to place the pole piece roll material. The pole piece connecting portion 111 is used for replacing the pole piece coil material. Please refer to FIG. 3 further. FIG. 3 is a schematic structural diagram of the pole piece connecting portion in FIG. 1 . Taking the first pole piece feeding device 11 as an example, the pole piece connecting portion 111 includes two pressing handles 1111 and two pressing blocks 1112 opposite to the pressing handles 1111 , and the pressing blocks 1112 are arranged below the pressing handles 1111 . When it is necessary to replace the new pole piece coil material, move two push handles 1111 to make the briquetting block 1112 press the first pole piece 30a, then cut off the first pole piece 30a, and then turn one of the push handles 1111 to make Its relative briquetting block 1112 is unclamped, then replaces the new pole piece coil material, and then toggles the pressing handle 1111, and the briquetting block 1112 presses the newly replaced pole piece coil material, and finally, puts the new pole piece coil material with the old pole piece coil material. The sheets and rolls are joined together to complete the joining of the new and old pole piece rolls. The pole piece dust removing part 112 is used for removing dust on the surface of the first pole piece 30a or the second pole piece 30b. Please refer to FIG. 4 further. FIG. 4 is a schematic structural diagram of the pole piece dust removal part in FIG. 1 . Taking the first pole piece feeding device 11 as an example, the pole piece dust removal part 112 has a brush 1121 , a main roller 1122 , an auxiliary roller 1123 and a main and auxiliary dust collecting tank 1124 . The main roller 1122, the auxiliary roller 1123 and a main and auxiliary dust collection tank 1124 form a closed space. The brush 1121 is used to brush off the dust on the first pole piece 30a or the second pole piece 30b, and the main and auxiliary dust collection tanks 1124 are used to hold the brushed dust, which falls into the main and auxiliary dust collection tanks 1124 under external drive The dust is sucked away, thereby removing the dust on the surface of the first pole piece 30a or the second pole piece 30b. Preferably, both the first pole piece feeding device 11 and the second pole piece feeding device 13 are provided with two pole piece dust removal parts 112, respectively corresponding to the two surfaces of the first pole piece 30a and the second pole piece 30b, The effect of dust removal is better.

In addition, in this embodiment, a pole piece feeding device 15 is provided between the first pole piece feeding device 11 and the second pole piece feeding device 13 and the winding needle 162, and the pole piece feeding device 15 is used to drive the first pole piece The piece 30 a and the second pole piece 30 b move toward the winding needle 162 . The pole piece feeding device 15 includes a pole piece clamp 151, which can move back and forth toward the winding device 16, and is driven by an air cylinder or an oil cylinder to loosen or clamp the first pole piece 30a passing therebetween. Or the second pole piece 30b. Specifically, when the pole piece clamp 151 moves to the first pole piece feeding device 11 or the second pole piece feeding device 13, the first pole piece 30a or the second pole piece 30b is clamped; when the pole piece clamp 151 moves When reaching the winding device 16, the first pole piece 30a or the second pole piece 30b is released, so as to be sent to the winding device 16 for winding. Therefore, both the first pole piece feeding device 11 and the second pole piece feeding device 13 in this embodiment are active feeding devices. Since the first diaphragm feeding device 12 and the second diaphragm feeding device 10 have no corresponding feeding device, the first diaphragm 20a and the second diaphragm 20b are driven by the winding device 16 to move, that is, both are passive feeding devices. In the present invention, it is not limited whether the feeding device 1 is an active feeding device or a passive feeding device, and either active feeding device or passive feeding device can be used.

In this embodiment, the first diaphragm feeding device 12 and the second diaphragm feeding device 10 further include a diaphragm discharging support shaft 101 , a static elimination part 104 and a diaphragm connecting part 105 . The diaphragm feeding support shaft 101 is used to place the diaphragm roll. The diaphragm connecting portion 105 is used to replace the diaphragm roll material, and its structure can be the same as the above-mentioned pole piece connecting portion 111 or other existing structures. The static electricity removing part 104 can use front and back static electricity removing devices to remove the static electricity on the first diaphragm 20a and the second diaphragm 20b, so as to prevent the static electricity on the first diaphragm 20a and the second diaphragm 20b from adversely affecting the battery.

The winding device 16 includes a rotating mechanism 161 and a winding needle 162 disposed at an output end of the rotating mechanism 161 . The winding needle 162 is provided with a plurality of winding positions, and is used to wind the battery winding materials respectively output by at least two groups of feeding devices 1 to different winding positions. The first pole piece 30a, the first diaphragm 20a, the second pole piece 30b and the second diaphragm 20b output by each group of feeding equipment 1 are all wound to the same position of the winding needle 162, and the output of different groups of feeding equipment 1 The first pole piece 30 a , the first diaphragm 20 a , the second pole piece 30 b and the second diaphragm 20 b are wound to different winding positions of the winding needle 162 at intervals. Please refer to FIG. 5 further. FIG. 5 is a schematic block diagram of a side view structure of the rolling needle portion of the battery winding arrangement in FIG. 1 . It can be seen that a plurality of batteries can be wound on one winding needle 162 of the winding device 16 , and each battery includes a first pole piece 30 a , a first separator 20 a , a second pole piece 30 b and a second separator 20 b. Therefore, a plurality of batteries can be wound by one winding needle 162, improving production efficiency. In addition, since the winding needle 162 of the present invention needs to wind a plurality of batteries, its length is relatively long. It is preferable that the winding needle 162 is provided with reinforcing ribs along its axial direction/or lengthwise direction, or adopts a structure with higher strength and lower toughness. material so that the ends do not deflect when rotated. The rotating mechanism 161 is, for example, a motor or an electric motor, the output shaft of which is connected to the winding needle 162 and drives the winding needle 162 to rotate.

The feeding equipment 1 can be arranged on the same side or opposite sides of the winding device 16, and the first pole piece 30a, the first diaphragm 20a, the second pole piece 30b and the second diaphragm 20b output by the same group of feeding equipment 1 The centerlines of are located on the same plane perpendicular to the lengthwise direction of the rolling needle 162.

Correspondingly, in other embodiments, there can be two groups of feeding devices, or more groups, it is only necessary to ensure that one winding device corresponds to at least two groups of feeding devices, and the number can be determined according to actual needs. on the adjustment.

Compared with the prior art, the battery winding equipment provided by the present invention simultaneously winds multiple batteries on one winding device, and feeds materials through multiple groups of feeding equipment, which can greatly improve the working efficiency of the winding device, thereby improving battery production efficiency.

The above descriptions are only some implementations of the present invention, and are not intended to limit the scope of protection of the present invention. Any equivalent device or equivalent process conversion made by using the description and drawings of the present invention, or directly or indirectly used in other related All technical fields are equally included in the scope of patent protection of the present invention.

Claims (10)

1. a kind of battery winding equipment, which is characterized in that the battery winding equipment includes：

At least two groups feeding device, each feeding device is exporting battery winding material；

Winding device, including rotating mechanism and be set to the rotating mechanism output end volume needle, be arranged on the volume needle Multiple winding positions, the battery winding material volume that the volume needle is used to respectively export at least two groups feeding device is not around Same winding position.

2. battery winding equipment according to claim 1, which is characterized in that the battery winding material includes the first pole Piece, the first diaphragm, the second pole piece and the second diaphragm, the feeding device include the first pole piece feeding device set gradually, First diaphragm feeding device, the second pole piece feeding device and the second diaphragm feeding device, the first pole piece feeding device are used To export first pole piece, to export first diaphragm, second pole piece is fed the first diaphragm feeding device Equipment is to export second pole piece, and the second diaphragm feeding device is exporting second diaphragm.

3. battery winding equipment according to claim 2, which is characterized in that the volume needle is along its axial direction and/or length Degree direction is provided with reinforcing rib.

4. battery winding equipment according to claim 2, which is characterized in that first pole in each feeding device Piece feeding device, the first diaphragm feeding device, the second pole piece feeding device and the second diaphragm feeding device Circumferential sequence along the volume needle is arranged.

5. battery winding equipment according to claim 2, which is characterized in that the first pole piece feeding device, described It is both provided with balancing tension in one diaphragm feeding device, the second pole piece feeding device and the second diaphragm feeding device Device, to stablize the tension of first pole piece, first diaphragm, second pole piece and second diaphragm.

6. battery winding equipment according to claim 5, which is characterized in that the tension balancer is multiple tension Roller, to form distributed tension force.

7. battery winding equipment according to claim 6, which is characterized in that the first pole piece feeding device and described the Further include pole piece blowing support shaft, pole piece tape splicing portion and pole piece dust removal unit, the pole piece blowing branch in two pole piece feeding devices Support axis is to place the pole piece coiled strip of first pole piece or second pole piece, and pole piece tape splicing portion is replacing the pole Piece coiled strip, the pole piece dust removal unit is removing the dust of first pole piece or second pole piece.

8. battery winding equipment according to claim 7, which is characterized in that the first pole piece feeding device and described Pole piece feeding device is both provided between second pole piece feeding device and the volume needle, the pole piece feeding device is to drive The first pole piece and second pole piece are stated to the volume needle movement.

9. battery winding equipment according to claim 5, which is characterized in that the first diaphragm feeding device and described the Further include diaphragm blowing support shaft in two diaphragm feeding devices, destatic portion and diaphragm tape splicing portion, the diaphragm blowing support Axis is described to destatic portion to remove the electrostatic of first diaphragm and second diaphragm to place diaphragm coiled strip, described Diaphragm tape splicing portion is replacing diaphragm coiled strip.

10. battery winding equipment according to claim 9, which is characterized in that the institute that feeding device described in same group exports State the first pole piece, first diaphragm, second pole piece and second diaphragm center line be located at it is same perpendicular to In the plane of the volume needle length direction.