CN210379294U

CN210379294U - Continuous multi-station battery cell winding device

Info

Publication number: CN210379294U
Application number: CN201921818859.8U
Authority: CN
Inventors: 郭春雷; 吴明雄
Original assignee: Shenzhen Xingheli Precision Machinery Co ltd
Current assignee: Shenzhen Xingheli Precision Machinery Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-04-21
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a continuous multi-station battery cell winding device, which comprises a rotor, wherein a plurality of needle cylinder assemblies are uniformly distributed on the rotor along the circumferential direction of the rotor, and any needle cylinder assembly is correspondingly provided with an elastic pressing assembly; any needle cylinder assembly is connected with a rotary driving assembly for driving the needle cylinder assembly to rotate, the needle cylinder assembly comprises a guide cylinder, two winding needles are slidably mounted in the guide cylinder along the length direction of the guide cylinder, and a gap for a belt material to pass through is formed between the two winding needles; a cylinder is coaxially sleeved on the outer side surface of the rotor, a plurality of lifting driving assemblies for driving the winding needle to slide along the guide cylinder are arranged on the outer side surface of the cylinder, and the lifting driving assemblies are arranged on the rotor; the outer side surface of the rotor is also provided with a material pressing and cutting assembly for pressing and cutting off the strip material, the material pressing and cutting assembly is arranged at the driving end of a reciprocating rotation driving assembly, and the material pressing and cutting assembly reciprocates along the rotation direction of the rotor. The utility model discloses technical scheme improves electric core take-up device job stabilization nature, improves the productivity.

Description

Continuous multi-station battery cell winding device

Technical Field

The utility model relates to a lithium battery processing field, in particular to continuous type multistation electricity core take-up device.

Background

The coiling of the battery core is a basic important process indispensable to the manufacture of most of lithium batteries at present. The current electric core winding machines on the market are basically designed and manufactured with reference to foreign winding machines. There is a common feature in the core making process: the battery cell can be rolled only singly (the core rolling process comprises the steps of 1, feeding and rolling the battery cell, 2, changing a station, cutting a diaphragm, ending and gluing, and 3, pulling a rolling needle and taking materials), the process step time consuming the longest time and the station changing time are the manufacturing period, and the high requirement and subdivision of the current single process step time already reach the bottleneck. Aiming at the problems of severe product competition, low production cost and high production efficiency in the prior art, the conventional battery cell winding device cannot meet the requirements of high yield and high cost performance in the market.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a continuous type multistation electricity core take-up device aims at improving electric core take-up device job stabilization nature, improves the productivity.

In order to achieve the above object, the utility model provides a continuous multi-station cell winding device, which comprises a rotor, wherein a plurality of needle cylinder assemblies for winding the strip are uniformly distributed on the rotor along the circumferential direction of the rotor, and any one of the needle cylinder assemblies is correspondingly provided with an elastic pressing assembly for pressing the strip on the needle cylinder assembly; any needle cylinder assembly is connected with a rotary driving assembly for driving the needle cylinder assembly to rotate, the needle cylinder assembly comprises a guide cylinder, two winding needles are slidably mounted in the guide cylinder along the length direction of the guide cylinder, and a gap for the belt material to pass through is formed between the two winding needles; a cylinder is coaxially sleeved on the outer side surface of the rotor, a plurality of lifting driving assemblies for driving the winding needles to slide along the guide cylinder are arranged on the outer side surface of the cylinder, the lifting driving assemblies are mounted on the rotor, any one of the lifting driving assemblies comprises a first lifting rod and a second lifting rod which are respectively connected with the two winding needles, rollers are respectively mounted on the first lifting rod and the second lifting rod, and guide grooves for the two rollers to move are respectively formed in the outer side surface of the guide cylinder; the outer side face of the rotor is further provided with a material pressing and cutting assembly used for pressing and cutting off the strip material, the material pressing and cutting assembly is installed at the driving end of a reciprocating rotation driving assembly, and the material pressing and cutting assembly reciprocates along the rotation direction of the rotor.

Preferably, a belt guiding assembly is arranged between two adjacent needle cylinder assemblies, any belt guiding assembly comprises two guiding rollers which are arranged side by side along the rotation direction of the rotor, and a conveying belt is sleeved on the outer side surfaces of the two guiding rollers and is in transmission connection with the guiding rollers.

Preferably, the elastic material pressing assembly comprises a material pressing roller which is arranged in parallel corresponding to the winding needle, two ends of the material pressing roller are respectively fixed on a connecting arm, any connecting arm is hinged on a fixed block, and the connecting arm is abutted to the fixed block through a spring.

Preferably, the rotary driving assembly comprises a first driving motor, the driving end of the driving motor is coaxially connected with a driving gear, and a driven gear meshed with the driving gear is arranged on the syringe assembly.

Preferably, any one of the lifting driving assemblies further comprises two first guide rail slider mechanisms, and one ends of the first lifting rod and the second lifting rod are respectively connected with the rotor through the first guide rail slider mechanisms.

Preferably, the reciprocating rotation driving mechanism is set as a crank and rocker driving mechanism, the crank and rocker driving mechanism comprises a driving wheel, the driving wheel is installed at the driving end of a second driving motor, the side face of the driving wheel is hinged to the end portion of a connecting rod, the other end of the connecting rod is hinged to a second guide rail sliding block mechanism, the second guide rail sliding block mechanism is meshed with the outer side face of a driven wheel through a rack structure, the driven wheel is sleeved on the outer side face of the rotor, and the material pressing and cutting assembly is installed on the driven wheel.

Preferably, the material pressing and cutting assembly comprises a first driving cylinder, a first material pressing block is installed at the driving end of the first driving cylinder, a plurality of second material pressing blocks corresponding to the first material pressing blocks are installed on the rotor, a second driving cylinder is further installed at the driving end of the first driving cylinder, a cutter is installed at the driving end of the second driving cylinder, and a through hole for the cutter to pass through is formed in the first material pressing block and the second material pressing block.

Preferably, still include a feeding subassembly, the feeding subassembly includes a feeding motor, a feeding roller of feeding motor drive end coaxial arrangement still includes a plurality of feeding deflector rolls, the feeding roller with connect through the conveyer belt between the feeding deflector roll.

Compared with the prior art, the beneficial effects of the utility model are that: the multi-station battery core winding device has the advantages that the multi-station battery core winding is realized, the time for changing the station is saved, the feeding, the coiling and the cutting are continuously completed while the rotor rotates, the production efficiency is greatly improved, and the rotor does not need to be accelerated and decelerated rapidly, so that the whole machining process is stable. Meanwhile, the guide groove of the cylindrical barrel adopts an improved trapezoidal curve, the working impact is small, the lifting stability of the winding needle is ensured, the noise is reduced, and the space is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the battery cell winding device of the present invention;

fig. 2 is a top view of the battery cell winding device of the present invention;

FIG. 3 is a schematic view of the installation structure of the syringe assembly, the elastic pressing assembly, the rotary driving assembly and the lifting driving assembly of the present invention;

fig. 4 is a schematic structural view of the elastic pressing assembly of the present invention;

FIG. 5 is a schematic view of the cylindrical barrel structure of the present invention;

fig. 6 is a schematic structural view of the material pressing and cutting assembly of the present invention;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1 to 5, the continuous multi-station battery cell winding device provided in this embodiment includes a rotor 1, a plurality of syringe assemblies 3 for winding a tape 2 are uniformly distributed on the rotor 1 along a circumferential direction thereof, and an elastic pressing assembly 4 for pressing the tape 2 onto the syringe assemblies 3 is correspondingly arranged on any one of the syringe assemblies 3; any needle cylinder component 3 is connected with a rotary driving component 5 for driving the needle cylinder component to rotate, the needle cylinder component 3 comprises a guide cylinder 31, two winding needles 32 are slidably mounted in the guide cylinder 31 along the length direction of the guide cylinder, and a gap for the strip 2 to pass through is arranged between the two winding needles 32; a cylinder 6 is coaxially sleeved on the outer side surface of the rotor 1, a plurality of lifting driving assemblies 7 for driving the winding needles 32 to slide along the guide cylinder 31 are arranged on the outer side surface of the cylinder 6, the lifting driving assemblies 7 are mounted on the rotor 1, any one of the lifting driving assemblies 7 comprises a first lifting rod 71 and a second lifting rod 72 which are respectively connected with the two winding needles 32, rollers 73 are respectively mounted on the first lifting rod 71 and the second lifting rod 72, and guide grooves 61 for the two rollers 73 to move are respectively arranged on the outer side surface of the guide cylinder 31; the outer side surface of the rotor 1 is further provided with a material pressing and cutting assembly 8 for pressing and cutting the belt material 2, the material pressing and cutting assembly 8 is mounted at the driving end of a reciprocating rotation driving assembly 95, and the material pressing and cutting assembly 8 reciprocates along the rotation direction of the rotor 1. Still include a feeding subassembly 11, feeding subassembly 11 includes a feeding motor 111, a feeding roller 112 of feeding motor 111 drive end coaxial arrangement still includes a plurality of feeding deflector rolls 113, feeding roller 112 with connect through guide conveyer belt 114 between the feeding deflector roll 113.

Further, be provided with area material direction subassembly 10 between two adjacent cylinder subassemblies 3, arbitrary area material direction subassembly 10 includes two edges guide roll 101 of rotor 1 direction of rotation installation side by side, two a direction conveyer belt 102 transmission connection is established to guide roll 101 lateral surface cover, guarantees the stability that area material 2 removed.

Further, the elastic pressing component 4 includes a pressing roll 41 disposed in parallel and corresponding to the winding needle 32, two ends of the pressing roll 41 are respectively fixed on a connecting arm 42, any one of the connecting arms 42 is hinged on a fixing block 43, and the connecting arm 42 and the fixing block 43 are abutted by a spring (not shown in the figure).

Further, the rotary driving assembly 5 includes a first driving motor 51, a driving gear 52 is coaxially connected to a driving end of the driving motor, and the needle cylinder assembly 3 is provided with a driven gear 33 engaged with the driving gear 52, so as to ensure the stability of rotation of the needle cylinder assembly 3 during material rolling.

Further, any one of the lifting driving assemblies 7 further includes two first guide rail slider mechanisms 74, and one ends of the first lifting rod 71 and the second lifting rod 72 are respectively connected with the rotor 1 through the first guide rail slider mechanisms 74, so as to ensure the lifting stability of the winding needle 32.

Further, the reciprocating rotation driving mechanism is a crank and rocker driving mechanism, the crank and rocker driving mechanism includes a driving wheel 91, the driving wheel 91 is installed at a driving end of a second driving motor 92, a side surface of the driving wheel 91 is hinged to an end portion of a connecting rod 93, the other end of the connecting rod 93 is hinged to a second guide rail slider mechanism 94, the second guide rail slider mechanism 94 is meshed with an outer side surface of a driven wheel 95 through a rack structure, the driven wheel 95 is sleeved on the outer side surface of the rotor 1, and the material pressing and cutting assembly 8 is installed on the driven wheel 95.

Further, referring to fig. 6, the material pressing and cutting assembly 8 includes a first driving cylinder 81, a first material pressing block 82 is installed at a driving end of the first driving cylinder 81, a plurality of second material pressing blocks (not shown in the figure) corresponding to the first material pressing blocks 82 are installed on the rotor 1, a second driving cylinder 84 is further installed at a driving end of the first driving cylinder 81, a cutter 85 is installed at a driving end of the second driving cylinder 84, and a through hole (not shown in the figure) for the cutter 85 to pass through is formed in the first material pressing block 82 and the second material pressing block.

Specifically, before the cell winding is performed, the rollers 73 on the first lifting rod 71 and the second lifting rod 72 are respectively located at the farthest positions of the two guide grooves 61 of the cylindrical drum 6, so that one winding needle 32 of the two winding needles 32 connected to the first lifting rod 71 and the second lifting rod 72 extends out of the guide drum 31, and the other winding needle 32 is retracted in the guide drum 31.

When carrying out electric core and coiling, the staff sends into rotor 1 with area material 2 through feeding subassembly 11 to put in second pressure material piece surface behind the book needle 32 side of will taking 2 tip of material through an extension, first drive actuating cylinder 81 drive first pressure material piece 82 and press to the second pressure material piece, compress tightly area material 2 tip, accomplish the pay-off. At this time, the battery cell winding device is started, the rotor 1 starts to rotate, the syringe assembly 3 and the reciprocating rotation driving assembly 95 start to rotate, wherein the syringe assembly 3 and the reciprocating rotation driving assembly 95 rotate in the same direction, and meanwhile, the syringe assembly 3 reversely rotates. It should be noted that, when the rotor 1 rotates, the lifting driving assembly 7 mounted on the rotor 1 rotates simultaneously with the rotor 1, so that the first lifting rod 71 and the second lifting rod 72 move under the guiding action of the guiding groove 61 through the roller 73 thereon, and since the two guiding grooves 61 of the cylindrical barrel 6 adopt the improved trapezoidal curve design and the two guiding grooves 61 are opened in opposite directions, the higher roller 73 moves along the guiding groove 61 while keeping the same height, and the lower roller 73 moves towards the higher roller 73, so that the winding needle 32 in the guiding barrel 31 extends to clamp the strip 2 between the two winding needles 32 at the initial position.

When the reciprocating rotation driving assembly 95 and the needle cylinder assembly 3 at the initial position rotate to the next station, the belt material 2 on the winding needle 32 completes winding of one electric core, at this time, the outer diameter of the winding needle 32 is increased due to the winding of the belt material 2, and is just abutted against the material pressing roller 41 of the elastic material pressing assembly 4, the spring in the elastic material pressing assembly 4 is compressed, and the belt material 2 is pressed on the winding needle 32. At this moment, the first material pressing block 82 is driven by the first driving cylinder 81 to be retracted, the reciprocating rotary driving assembly 95 reversely rotates to return to the initial position, in the process, the rotor 1 continues to rotate, the rear syringe assembly 3 rotates to the initial feeding position and corresponds to the reciprocating rotary driving assembly 95 returning to the initial position, the reciprocating driving assembly presses the material again through the first driving cylinder 81, the second driving cylinder 84 drives the cutter 85 to press down for cutting, feeding, rolling and cutting of one battery cell are completed. And the multi-station continuous battery cell winding operation can be realized by circulating the processes. It should be noted that after the material is cut by the cutter 85, the tape 2 of the subsequent syringe assembly 3 is pressed between the first pressing block 82 and the second pressing block, and the tail material wound in the front direction can be withdrawn under the rotation of the syringe assembly 3 due to the rotary abutment between the winding needle 32 and the pressing roller 41 of the elastic pressing assembly 4, and is pasted by the subsequent process, and then is taken out by the manipulator. The rubberizing is not the main utility model point of this embodiment with the manipulator takes out, does not give unnecessary details here.

The electric core of multistation has been realized to this embodiment and has been convoluteed, has saved and has traded the station time, and when rotor 1 is rotatory, accomplish the pay-off in succession, the coil stock, the blank has improved production efficiency greatly, and rotor 1 need not to carry out urgent acceleration rate, urgent speed reduction, consequently, whole course of working is steady. Meanwhile, the guide groove 61 of the cylindrical barrel 6 adopts an improved trapezoidal curve, the working impact is small, the lifting stability of the winding needle 32 is ensured, the noise is reduced, and the space is saved.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A continuous multi-station battery cell winding device is characterized by comprising a rotor, wherein a plurality of needle cylinder assemblies for winding a belt material are uniformly distributed on the rotor along the circumferential direction of the rotor, and any one of the needle cylinder assemblies is correspondingly provided with an elastic pressing assembly for pressing the belt material on the needle cylinder assembly; any needle cylinder assembly is connected with a rotary driving assembly for driving the needle cylinder assembly to rotate, the needle cylinder assembly comprises a guide cylinder, two winding needles are slidably mounted in the guide cylinder along the length direction of the guide cylinder, and a gap for the belt material to pass through is formed between the two winding needles; a cylinder is coaxially sleeved on the outer side surface of the rotor, a plurality of lifting driving assemblies for driving the winding needles to slide along the guide cylinder are arranged on the outer side surface of the cylinder, the lifting driving assemblies are mounted on the rotor, any one of the lifting driving assemblies comprises a first lifting rod and a second lifting rod which are respectively connected with the two winding needles, rollers are respectively mounted on the first lifting rod and the second lifting rod, and guide grooves for the two rollers to move are respectively formed in the outer side surface of the guide cylinder; the outer side face of the rotor is further provided with a material pressing and cutting assembly used for pressing and cutting off the strip material, the material pressing and cutting assembly is installed at the driving end of a reciprocating rotation driving assembly, and the material pressing and cutting assembly reciprocates along the rotation direction of the rotor.

2. The continuous multi-station cell winding device according to claim 1, wherein a belt guiding assembly is disposed between two adjacent cylinder assemblies, any belt guiding assembly comprises two guiding rollers arranged side by side along the rotation direction of the rotor, and a belt transmission connection is sleeved on the outer side surfaces of the two guiding rollers.

3. The continuous multi-station battery cell winding device according to claim 1, wherein the elastic pressing assembly comprises a pressing roller arranged in parallel with the winding needle, two ends of the pressing roller are respectively fixed on a connecting arm, any connecting arm is hinged to a fixed block, and the connecting arm abuts against the fixed block through a spring.

4. The continuous multi-station cell winding device of claim 1, wherein the rotary driving assembly comprises a first driving motor, a driving end of the first driving motor is coaxially connected with a driving gear, and the cylinder assembly is provided with a driven gear engaged with the driving gear.

5. The continuous multi-station cell winding device of claim 1, wherein any one of the lift drive assemblies further comprises two first rail-slider mechanisms, and one ends of the first lift rod and the second lift rod are respectively connected to the rotor through the first rail-slider mechanisms.

6. The continuous multi-station cell winding device according to claim 1, wherein the reciprocating rotation driving mechanism is a crank and rocker driving mechanism, the crank and rocker driving mechanism includes a driving wheel, the driving wheel is mounted at a driving end of a second driving motor, a side surface of the driving wheel is hinged to an end portion of a connecting rod, the other end of the connecting rod is hinged to a second guide rail slider mechanism, the second guide rail slider mechanism is meshed with an outer side surface of a driven wheel through a rack structure, the driven wheel is sleeved on the outer side surface of the rotor, and the pressing and cutting assembly is mounted on the driven wheel.

7. The continuous multi-station battery cell winding device of claim 1, wherein the pressing and blanking assembly comprises a first driving cylinder, a first pressing block is mounted at a driving end of the first driving cylinder, a plurality of second pressing blocks corresponding to the first pressing block are mounted on the rotor, a second driving cylinder is further mounted at the driving end of the first driving cylinder, a cutter is mounted at a driving end of the second driving cylinder, and through holes for the cutter to pass through are formed in the first pressing block and the second pressing block.

8. The continuous multi-station cell winding device of claim 1, further comprising a feeding assembly, wherein the feeding assembly comprises a feeding motor, a feeding roller is coaxially mounted at a driving end of the feeding motor, and a plurality of feeding guide rollers are further included, and the feeding roller is connected with the feeding guide rollers through a conveying belt.