CN218849546U

CN218849546U - Winding device

Info

Publication number: CN218849546U
Application number: CN202223072542.9U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-04-11
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a winding device, which comprises a discharging mechanism, a rotating disk, a first winding part, a second winding part and a cutter assembly, wherein the first winding part and the second winding part respectively comprise a winding needle seat and two winding needles arranged on the winding needle seat, and a winding needle gap is formed between the two winding needles; the winding needle of the first winding part rotates to wind the material belt with the first length conveyed by the discharging mechanism on the winding needle of the first winding part, the rotary disk is used for driving the first winding part to rotate to the discharging station, the second winding part rotates to the winding station, the winding needle of the second winding part slides relative to the rotary disk to extend out to enable the material belt to be located in a winding needle gap of the second winding part, the winding needle of the second winding part rotates to wind the material belt conveyed by the discharging mechanism and the first winding part on the winding needle of the second winding part synchronously, and the cutter assembly is used for cutting off the material belt. This application can avoid the material area to slide for the book needle when processing to the coiling of the less size's electric core to electric core coiling processing's effect has been guaranteed.

Description

Winding device

Technical Field

The application relates to the technical field of battery cell processing equipment, in particular to a winding device.

Background

With the development of battery technology, the demand for miniaturization of batteries is higher and higher, and the most important component of the batteries is the battery core, so the processing quality of the miniaturized battery core is also higher and higher.

In the related art, the winding device generally includes a winding element and a cutter assembly, the winding element includes a first winding element and a second winding element, each winding element includes a winding needle seat and a winding needle disposed on the winding needle seat, and a clamping element, such as an inner clamping needle, is disposed on the winding needle. After the material strip is wound on the winding needle of the first winding piece, before the cutter assembly cuts the material strip between the first winding piece and the second winding piece, the material strip can be clamped and fixed on the winding needle corresponding to the second winding piece through the inner clamping needle on the winding needle of the second winding piece, so that the situation that the material strip slides relative to the winding needle corresponding to the second winding piece due to the tension after being cut by the cutter assembly is prevented, and the situation that the material strip cannot be wound on the winding needle corresponding to the second winding piece is further prevented.

However, the method of fixing the tape by providing the clamping member on the winding pin is only applicable to winding of a large-sized battery cell, and when a small-sized battery cell is wound, the size is limited, and the clamping member cannot be provided on the winding pin, so that when the winding pin corresponding to the first winding member finishes winding and then cuts the tape to wind on the winding pin corresponding to the second winding member, the cut tape cannot be fixed on the winding pin corresponding to the second winding member, and when the winding pin corresponding to the second winding member winds the tape, the tape slides relative to the winding pin under the action of tension, thereby affecting the effect of winding of the battery cell.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model provides a winding device can avoid the material area to slide for the book needle when processing to less size's electric core coiling to electric core coiling's effect has been guaranteed.

In order to solve the above technical problem, in a first aspect, the present invention provides a winding device, including:

a discharge mechanism that conveys a belt;

a rotating disk rotatable about an axis of the rotating disk;

the winding piece comprises a first winding piece and a second winding piece, the first winding piece and the second winding piece respectively comprise a winding needle seat which is rotatably arranged on the rotating disc around the axis of the first winding piece and two winding needles which are arranged on the winding needle seat, the winding needle seat can drive the two winding needles to extend out relative to the rotating disc along the axial direction of the winding needles, and a winding needle gap is formed between the two winding needles;

the cutter assembly comprises a cutter driving part and a cutter connected with the cutter driving part;

when the first winding piece is located at a winding station, the material belt is located in the winding needle gap of the first winding piece, the winding needle seat of the first winding piece is used for driving the corresponding winding needle to rotate so as to wind the material belt of a first length conveyed by the discharging mechanism onto the winding needle of the first winding piece, the rotating disc is used for driving the first winding piece to rotate to a discharging station, the second winding piece to rotate to the winding station, the winding needle seat of the second winding piece can drive the two winding needles to slidably extend relative to the rotating disc so that the material belt is located in the winding needle gap of the second winding piece, the winding needle seat of the second winding piece is used for driving the corresponding winding needle to rotate so as to wind the material belt of a second length conveyed by the discharging mechanism and the material belt of a third length unwound by the first winding piece onto the winding needle of the second winding piece synchronously, and the cutter driving piece is used for driving the cutter to cut off the material belt of the first length and the second length after the first winding piece unwinds to the material belt of the second winding piece, and the cutter driving piece is used for driving the cutter to cut off the material belt of the first winding piece.

In a possible implementation manner of the first aspect, a heating rod is arranged in the cutting knife, and the heating rod is used for heating the cutting knife.

In a possible implementation manner of the first aspect, the winding device further includes a driving element and a connecting shaft connected to the driving element, the rotating disc is coaxial with the connecting shaft, and the rotating disc is fixedly connected to the connecting shaft;

the connecting shaft is provided with a propping piece, and the propping piece is used for providing propping force for the material belt when the material belt is cut off by the cutter.

In a possible implementation manner of the first aspect, the abutting piece is provided with an avoiding groove, and the avoiding groove is used for avoiding the cutter.

In a possible implementation manner of the first aspect, the abutting piece faces towards one side of the material belt and a second adsorption hole is formed in a groove wall of the avoiding groove, and the second adsorption hole is used for adsorbing the material belt.

In a possible implementation manner of the first aspect, the winding device further includes:

the tension assembly comprises a tension driving piece and a roller, the tension driving piece can drive the roller to move towards the direction close to or far away from the abutting piece so as to adjust the tension of the material belt when the winding piece positioned at the blanking station unreels.

In a possible implementation manner of the first aspect, the winding device further includes a first roller and a second roller which are rotatably disposed, the first roller and the second roller are opposite at intervals, and the tension driving member can drive the rollers to move between the first roller and the second roller, so that the material belt which is unwound by the second winding member and passes around the rollers is squeezed between the first roller and the second roller, and the tension of the material belt is adjusted when the winding member at the blanking station is unwound.

In a possible implementation manner of the first aspect, the winding device further includes a displacement sensor, the displacement sensor is electrically connected to the tension driving member, and the displacement sensor is configured to detect a displacement of the roller.

In a possible implementation manner of the first aspect, the winding device further includes a closing-end assembly, the closing-end assembly includes a closing-end pressing piece disposed close to the blanking station, and the closing-end pressing piece is configured to press the material strip close to the blanking station onto the cut-off winding needle of the blanking station.

In a possible implementation manner of the first aspect, the ending component further comprises an ending adsorption piece which is close to the blanking station, and the ending adsorption piece is used for adsorbing the material belt which is close to the blanking station after being cut off, so that the free end of the material belt is prevented from swinging.

In a possible implementation manner of the first aspect, the winding device further includes a second roller which is rotatably disposed;

the ending assembly further comprises a pressing roller, and the pressing roller is used for moving towards the second roller so as to enable the material belt before cutting to be abutted against the second roller.

In a second aspect, the present invention also provides a winding method applied to the winding device of the first aspect, the method including:

arranging a material belt in a winding needle gap of the first winding part positioned at a winding station;

rotating a winding needle seat of a first winding piece so as to wind the material belt of a first length transmitted by the discharging mechanism on the winding needle of the first winding piece;

rotating the rotating disc to rotate the first winding member to the blanking station and the second winding member to the winding station;

the winding needle seat of the second winding part can drive the two winding needles to slide and extend out along the axial direction of the winding needles relative to the rotating disc, so that the material belt is positioned in the winding needle gaps of the second winding part;

rotating a needle rolling seat of a second winding piece so as to synchronously wind a material belt with a second length transmitted by the discharging mechanism and a material belt with a third length unreeled by the first winding piece onto a needle of the second winding piece, wherein the third length is smaller than the first length;

and cutting the material belt between the first winding part and the second winding part after the first winding part unreels the third length of the material belt to the second winding part.

Compared with the prior art, the application has at least the following beneficial effects:

in the application, when the winding device starts to wind, firstly, the first winding part is located at the winding station, the material belt is located in a winding needle gap of the first winding part and is fixed relative to the winding needle, then, the winding needle seat of the first winding part is rotated, the material belt of the first length conveyed by the discharging mechanism is wound on the winding needle of the first winding part, then, the rotating disc is rotated around the axis of the rotating disc, the first winding part and the second winding part are driven to rotate, the rotation of the rotating disc is stopped when the first winding part rotates to the discharging station and the second winding part rotates to the winding station, and when the rotating disc stops rotating, the winding needle seat of the second winding part drives the two winding needles to slide and extend out along the axial direction of the winding needle relative to the rotating disc, so that the material belt between the first winding part and the discharging mechanism is located in the winding needle gap of the second winding part.

The first winding part and the discharging mechanism can pull the material belt in the winding needle gap of the second winding part, so that when the winding needle seat of the second winding part is rotated, the winding needle seat of the second winding part drives the corresponding winding needle to rotate so as to wind the material belt conveyed by the discharging mechanism and the material belt unwound by the first winding part on the winding needle of the second winding part, when the first winding part unwinds the material belt with the third length, the cutter in the cutter assembly cuts the material belt between the first winding part and the second winding part, and as the material belt with the third length unwound by the first winding part is wound on the winding needle of the second winding part, after the cutter cuts the material belt between the first winding part and the second winding part, in the process that the winding needle seat of the second winding part drives the winding needle to continue winding, the material belt unwound by the first winding part and wound on the winding needle of the second winding part cannot slide relative to the winding needle, so that the situation that the material belt slides relative to the winding needle of the second winding part is avoided, and the winding effect of the material belt of the second winding needle of the second winding part is ensured.

In addition, similarly, after the winding needle of the second winding part winds the material belt with the second length provided by the discharging mechanism and the first winding part finishes discharging, the rotating disc is rotated again, the first winding part is rotated to the winding station, the second winding part is rotated to the discharging station, so that the first winding part is wound again, when the first winding part is located at the winding station, the rotating disc is stopped rotating, and meanwhile, the winding needle seat of the first winding part drives the two winding needles to slide and extend out relative to the rotating disc along the axial direction of the winding needles, so that the material belt between the second winding part and the discharging mechanism is located in the winding needle gap of the first winding part, at the moment, the winding needle seat of the first winding part drives the two winding needles to rotate so as to wind the material belt conveyed by the discharging mechanism and the material belt unwound by the second winding part on the winding needles of the first winding part, until the material belt with the third length of the second winding part is wound on the winding needles of the first winding part, the cutter is used for cutting off the material belt between the first winding part, and the material belt cut off from the first winding needle after cutting is cut off, so that the winding effect of the first winding needle is not guaranteed.

It is thus clear that need not to set up the holder in order to fix the material area in this application on the book needle, can avoid the material area that the cutter cut off to slide for the book needle when the book needle is convoluteed, consequently, this take-up device can avoid the material area to slide for the book needle when processing to less size's electric core coiling to the effect of electric core coiling processing has been guaranteed.

Drawings

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

Fig. 1 is a schematic structural diagram of a winding device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first winding member or a second winding member according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a cutter assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the leaning piece at the position where the connecting shaft is provided according to the embodiment of the present invention;

fig. 5 is a front view of an abutting member provided by an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a tension assembly according to an embodiment of the present invention;

fig. 7 is a bottom view of a tension assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural view illustrating a tension assembly adjusting tension of a material strap according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminating assembly according to an embodiment of the present invention;

fig. 10 is a schematic structural view of the ending component acting on the material belt according to the embodiment of the present invention;

fig. 11 is a flowchart of a winding method according to an embodiment of the present invention.

Description of reference numerals:

10-material belt;

100-a winding device; 110-a discharging mechanism;

120-rotating disc; 121-a blanking station; 122-a winding station;

130-a winding member; 131-a first winding member; 132-a second winding; 133-needle rolling seat; 134-winding needle; 1341-needle winding gap;

140-a cutter assembly; 141-a cutter drive; 142-a cutter; 143-heating rod;

161-a connecting shaft; 162-an abutment; 1621-an avoidance slot; 1622-a first adsorption plate; 1623-a second adsorption well; 1624-a first roller; 1625 second roller

170-a tension assembly; 171-a tension driver; 172-a roller;

180-a closeout component; 181-a closeout hold-down; 1811-compression driver element; 1812-pinch rollers; 182-a support; 183-ending adsorption piece; 1831-locking drive; 1832-second adsorption plate; 184-press roll.

Detailed Description

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

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Moreover, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific type and configuration may or may not be the same), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

As described in the background of the present application, in the related art, a winding device generally includes a winding element and a cutter assembly, the winding element includes a first winding element and a second winding element, each winding element includes a winding needle seat and a winding needle disposed on the winding needle seat, and a clamping element, such as an inner clamping needle, is disposed on the winding needle. After the material belt is wound on the winding needle of the first winding piece, before the cutting knife assembly cuts the material belt between the first winding piece and the second winding piece, the material belt can be clamped and fixed on the winding needle corresponding to the second winding piece through the inner clamping needle on the winding needle of the second winding piece, so that the situation that the material belt slides relative to the winding needle corresponding to the second winding piece due to tension after the material belt is cut by the cutting knife assembly is prevented, and the situation that the material belt cannot be wound on the winding needle corresponding to the second winding piece is further prevented.

In order to solve the technical problem mentioned in the background art, the utility model provides a winding device, last first coiling piece and the second coiling piece of being provided with of winding device, first coiling piece and the second coiling piece all include around the axis of self rotatably set up in the coil needle seat of rotary disk and set up two book needles on the coil needle seat, along the axial of book needle, the coil needle seat can drive the coil needle and stretch out for the rotary disk, when first coiling piece is located the coiling station, the material area is arranged in the coil needle gap of first coiling piece, the coil needle seat of first coiling piece is used for driving the corresponding coil needle rotation and convolutes on the coil needle of first coiling piece with the material area of the first length of drop feed mechanism conveying, the rotary disk is arranged in driving first coiling piece rotation to unloading station, the second coiling piece is rotatory to the coiling station, the coil needle seat of second coiling piece and two coil needles can slide and stretch out so that the coil needle seat that makes be arranged in the coil needle gap of second coiling piece relatively corresponding coil needle, the coil needle seat of second coiling piece is used for driving the coil needle rotation of the coil needle and the second coil needle seat and the coil needle of second coiling piece and the synchronous processing of the length of the coil material area of the second coil needle and the second coil needle, thereby the effect of the coil is guaranteed to the coil material area of the winding device in the processing of the third coiling of the coil material area of the second coiling mechanism in the processing of the winding of the second coiling piece.

The present application is illustrated in detail by the following specific examples:

referring to fig. 1, 2 and 3 in combination, the present application provides a winding apparatus 100, the winding apparatus 100 includes a discharging mechanism 110, a rotating disc 120, a winding member and a cutter assembly 140, wherein the discharging mechanism 110 conveys a material strip 10; rotary disk 120 is rotatable about the axis of rotary disk 120; the winding member 130 comprises a first winding member 131 and a second winding member 132, each of the first winding member 131 and the second winding member 132 comprises a winding needle seat 133 rotatably disposed on the rotating disc 120 around its axis and two winding needles 134 disposed on the winding needle seat 133, along the axial direction of the winding needles 134, the winding needle seat 133 drives the two winding needles 134 to extend out relative to the rotating disc, and a winding needle gap 1341 is formed between the two winding needles 134; the cutter assembly 140 includes a cutter driving member 141 and a cutter 142 connected to the cutter driving member 141, wherein the cutter driving member 141 is configured to drive the cutter 142 to cut off the tape 10 between the first winding member 131 and the second winding member 132 when the first winding member 131 unwinds the tape 10 of a third length to the second winding member 132; when the first winding member 131 is located at the winding station 122, the material tape 10 is located in the needle winding slit 1341 of the first winding member 131, the needle winding seat 133 of the first winding member 131 is configured to drive the corresponding needle winding 134 to rotate so as to wind the material tape 10 of the first length conveyed by the discharging mechanism 110 onto the needle winding 134 of the first winding member 131, the rotating disk 120 is configured to drive the first winding member 131 to rotate to the discharging station 121, and the second winding member 132 to rotate to the winding station 122, the needle winding seat 133 of the second winding member 132 is configured to drive the two needle winding 134 to slidably extend along the axial direction of the needle winding 134 relative to the rotating disk 120 so that the material tape 10 is located in the needle winding slit 1341 of the second winding member 132, the needle winding seat 133 of the second winding member 132 is configured to drive the corresponding needle winding 134 to rotate so as to synchronously wind the material tape 10 of the second length conveyed by the discharging mechanism 110 and the material tape 10 of the third length of the first winding member 131 onto the needle winding member 134, and the third length is smaller than the first length.

It should be noted that, when the first winding member 131 winds the first length of the material tape 10 and rotates to the feeding station 121 through the rotating disc 120, the material tape 10 between the first winding member 131 and the discharging mechanism 110 is in a tensioned or approximately tensioned state, in a possible understanding, the material tape 10 may be understood as two layers of diaphragms arranged in a stacked manner, and in another possible understanding, the material tape 10 may be understood as two layers of diaphragms arranged in a stacked manner and a pole piece sandwiched between the two layers of diaphragms.

Based on the above structure, when the winding device 100 starts to wind, the first winding member 131 is firstly located at the winding station 122, and the material strip 10 is located in the winding needle gap 1341 of the first winding member 131 and fixed relative to the winding needle 134, then the winding needle seat 133 of the first winding member 131 is rotated, so that the material strip 10 of the first length conveyed by the discharging mechanism 110 is wound on the winding needle 134 of the first winding member 131, then the rotating disk 120 is rotated, so that the rotating disk 120 rotates around the axis of the rotating disk 120, thereby driving the first winding member 131 and the second winding member 132 to rotate, so that the first winding member 131 rotates to the discharging station 121, the second winding member 132 rotates to the winding station 122 to stop the rotation of the rotating disk 120, and when the rotating disk 120 stops rotating, the winding needle seat 133 of the second winding member 132 drives the two winding needles 134 to slide and extend along the axial direction of the winding needle 134 relative to the rotating disk 120, so that the material strip 10 between the first winding member 131 and the discharging mechanism 110 is located in the winding needle gap 1341 of the second winding member 132.

Since the first winding member 131 and the discharging mechanism 110 can pull the tape 10 in the needle winding gap 1341 of the second winding member 132, when the needle winding base 133 of the second winding member 132 is rotated, the needle winding base 133 of the second winding member 132 can drive the corresponding needle winding 134 to rotate so as to wind the tape 10 conveyed by the discharging mechanism 110 and the tape 10 discharged by the first winding member 131 onto the needle winding 134 of the second winding member 132.

When the first winding member 131 unwinds the third length of the material tape 10, the cutter 142 in the cutter assembly 140 cuts the material tape 10 between the first winding member 131 and the second winding member 132, and since the third length of the material tape 10 unwound by the first winding member 131 is already wound on the winding needle 134 of the second winding member 132, when the cutter 142 cuts the material tape 10 between the first winding member 131 and the second winding member 132, in the process that the winding needle 134 is driven by the winding needle seat 133 of the second winding member 132 to continue winding, the material tape 10 unwound by the first winding member 131 and wound on the winding needle 134 of the second winding member 132 does not slide relative to the winding needle 134, so that the situation that the material tape 10 slides relative to the winding needle 134 of the second winding member 132 is avoided, and the winding effect of the winding needle 134 of the second winding member 132 is ensured.

In addition, similarly, after the winding needle 134 of the second winding member 132 finishes winding the second length of the material tape provided by the discharging mechanism 110 and the first winding member 131 finishes discharging, the rotating disk 120 is rotated again, the first winding member 131 is rotated to the winding station 122, the second winding member 132 is rotated to the discharging station 121, so as to perform the winding of the first winding member 131 again, when the first winding member 131 is located at the winding station 122, the rotating disk 120 is stopped rotating, and simultaneously the winding needle seat 133 of the first winding member 131 drives the two winding needles 134 to slide and extend along the axial direction of the winding needles 134 relative to the rotating disk 120, so that the material tape 10 between the second winding member 132 and the discharging mechanism 110 is located in the winding needle gap 1341 of the first winding member 131, at this time, the reel seat 133 of the first winding member 131 drives the two reels 134 to rotate so as to wind the tape 10 unreeled by the tape discharging mechanism 110 and the tape 10 unreeled by the second winding member 132 around the reels 134 of the first winding member 131, and when the tape 10 unreeled by the second winding member 132 and having the third length is wound around the reels 134 of the first winding member 131, the tape between the first winding member 131 and the second winding member 132 is cut by the cutter 142, and similarly, the cut tape 10 reeled around the reels 134 of the first winding member 131 will not slide relative to the reels 134, thereby ensuring the winding effect of the first winding member 131.

It can be seen that, in this embodiment, there is no need to provide a clamping member on the winding needle 134 to fix the tape 10, and the tape 10 cut by the cutter 142 can be prevented from sliding relative to the winding needle 134 when the winding needle 134 winds, so that the winding device 100 can prevent the tape 10 from sliding relative to the winding needle when winding a smaller-sized battery cell, thereby ensuring the battery cell winding effect.

In the winding of the core of the battery cell, for example, the tape 10 includes two layers of diaphragms, and when the cutter 142 cuts the tape 10 between the first winding member 131 and the second winding member 132, the two layers of diaphragms are easily displaced, thereby affecting the winding effect of the core. Based on this, in some possible embodiments, referring to fig. 3, a heating rod 143 is provided inside the cutter 142, and the heating rod 143 is used to heat the cutter 142.

Because the heating rod 143 can heat the cutter 142, therefore, when the cutter 142 cuts off the material belt 10, two layers of diaphragms can be bonded together, thereby avoiding the displacement of the diaphragms on two sides and further ensuring the winding effect of the winding core.

When the cutter 142 cuts the material tape 10, since the material tape 10 is flexible, in order to ensure the cutting effect of the cutter 142, in some possible embodiments, referring to fig. 4, the winding device 100 further includes a driving member and a connecting shaft 161 connected to the driving member, and the rotating disc 120 is coaxial with the connecting shaft 161 and is sleeved on the connecting shaft 161; the connecting shaft 161 is provided with an abutting member 162, and the abutting member 162 is used for providing an abutting force to the tape 10 when the cutter 142 cuts the tape 10.

Because the abutting piece 162 is arranged on the connecting shaft 161, and the abutting piece 162 provides abutting force for the material tape 10 when the cutter 142 cuts the material tape 10, the abutting force of the cutter 142 on the material tape 10 is opposite to the abutting force of the abutting piece 162 on the material tape 10, so that the material tape 10 is prevented from moving along the abutting force direction of the cutter 142 when the cutter 142 cuts the material tape 10, and the cutting effect of the cutter 142 on the material tape 10 is ensured.

Illustratively, when the abutting member 162 is provided on the rotation shaft, the first roller 1624 and the second roller 1625 are rotatably provided on the abutting member 162.

Further, in some possible embodiments, referring to fig. 4, the abutting member 162 is provided with an avoidance groove 1621, and the avoidance groove 1621 is used for avoiding the cutter 142.

From this, dodge the groove 1621 through setting up, dodge the cutter 142 when can making the cutter 142 cut material area 10 to make the cutter 142 can pierce through the material area 10 and insert and locate in dodging the groove 1621, guaranteed the cutting effect of cutter 142.

In some possible embodiments, referring to fig. 5 and 6 in combination, a side of the abutting member 162 facing the tape 10 is provided with a second adsorption hole 1623, and the second adsorption hole 1623 is used for adsorbing the tape 10.

Specifically, lean on piece 162 and be provided with two first adsorption plates 1622 towards one side in material area 10, two first adsorption plates 1622 all are provided with the second and adsorb hole 1623 on one side in material area 10, and two first adsorption plates 1622 intervals set up, and the clearance between two first adsorption plates 1622 forms dodges groove 1621.

Therefore, when the cutter 142 cuts the material tape 10, firstly, the second adsorption hole 1623 adsorbs and fixes the material tape 10 on the abutting member 162, then the cutter driving member 141 drives the cutter 142 to move towards the abutting member 162 until the cutter 142 penetrates through the material tape 10 and is inserted into the avoiding groove 1621, the cutting of the cutter 142 to the material belt 10 is completed, and it is seen that the stability of the material belt 10 can be ensured by arranging the second adsorption hole 1623 when the cutter 142 cuts the material belt 10, and then the cutting effect of the cutter 142 to the material belt 10 is ensured.

When the first winding member 131 unwinds and winds the second winding member 132, because there are differences in the winding thickness of the tape 10 on the winding needle 134 of the first winding member 131, the rotation speed of the winding needle 134 of the first winding member 131, the winding thickness of the tape 10 on the winding needle 134 of the second winding member 132, the rotation speed of the winding needle 134 of the second winding member 132, and the like, the tension of the tape 10 between the first winding member 131 and the second winding member 132 is very easily fluctuated, so that the winding effect of the second winding member 132, that is, the winding effect of the winding needle 134 of the winding station 122 is influenced. Based on this, in some possible embodiments, referring to fig. 6, 7 and 8 in combination, the winding device 100 further includes a tension assembly 170, the tension assembly 170 includes a tension driving member 171 and a roller 172, and the tension driving member 171 can move the roller 172 to adjust the tension of the material tape 10 when the winding member located at the blanking station 121 is unreeled.

Since the tension driving member 171 can drive the roller 172 to move, the roller 172 has an abutting force forming an angle with the length direction of the tape 10 and acts on the tape 10, so as to change the extending shape of the tape 10 between the first winding member 131 and the second winding member 132, in other words, the extending track of the tape 10 between the first winding member 131 and the second winding member 132 is changed by the roller 172, thereby adjusting the tension of the tape 10 between the first winding member 131 and the second winding member 132.

In some possible embodiments, referring to fig. 8, the winding device 100 further includes a first roller 1624 and a second roller 1625 rotatably disposed, the first roller 1624 and the second roller 1625 are spaced and opposite to each other, and the tension driving member 171 can drive the roller 172 to move between the first roller 1624 and the second roller 1625 to press the tape wound around the roller 172 between the first roller 1624 and the second roller 1625, so as to adjust the tension of the tape 10 when the winding member 130 at the feeding station 121 is unreeled.

Specifically, the first roller 1624 and the second roller 1625 are rotatably disposed on a side of the abutting member 162 facing the tape 10.

By rotating the first and

second rollers

1624, 1625, and the tension driver 171 can drive the roller 172 to move between the first and

second rollers

1624, 1625 to press the tape wound around the roller 172 between the first and

second rollers

1624, 1625, on one hand, the friction between the tape 10 and the abutting member 162 can be changed from sliding friction to rolling friction, in other words, the friction between the tape 10 and the abutting member 162 can be reduced by the first and

second rollers

1624, 1625, so as to ensure the sliding effect of the tape 10 relative to the abutting member 162, on the other hand, the tape 172 is on one side of the tape 10 and can provide a support point for the tape 10, and the roller 172 is on the other side of the tape 10 and can provide a support point for the tape 10, thereby adjusting the tension of the tape 10 to change the track of the tape 10.

In order to achieve an intelligent degree of adjustment of the tension of the strip of material 10 between the first winding member 131 and the second winding member 132, in some possible embodiments, the winding device 100 further comprises a displacement sensor electrically connected to the tension driving member 171, the displacement sensor being configured to detect the displacement of the roller 172 in its movement.

The electrical connection of the displacement sensor to the tension driver 171 means that the displacement sensor is electrically connected to the tension driver 171 through a controller.

In this embodiment, the controller can control the tension driving member 171 to drive the roller 172 to move by a preset displacement according to the tension of the tape 10, and the displacement sensor can feed back the obtained movement displacement of the roller 172 to the controller, so as to achieve accurate control of the tension of the tape 10 between the first winding member 131 and the second winding member 132.

It should be further noted that the tension of the material tape 10 between the first winding member 131 and the second winding member 132 is obtained by a tension sensor, and the tension sensor is electrically connected to the controller to transmit the tension information of the material tape 10 obtained by the tension sensor to the controller, so that the controller can control the tension driving member 171.

The tension driver 171 may be a low friction cylinder, a linear motor, or the like.

In some possible embodiments, referring to fig. 9 and 10, the winding device 100 further includes a closing-end assembly 180, and the closing-end assembly 180 includes a closing-end pressing member 181 disposed adjacent to the blanking station 121, and the closing-end pressing member 181 is configured to press the material tape adjacent to the blanking station 121 onto the cut-off winding needle 134 of the blanking station 121.

The ending pressing member 181 is configured to press the material tape close to the blanking station 121 onto the winding needle 134 of the blanking station 121, and it should be understood that when the first winding member 131 is located at the blanking station 121, the ending pressing member 181 is configured to press the length of the material tape 10 wound around the winding needle 134 of the first winding member 131 onto the winding needle 134 of the first winding member 131, or when the second winding member 132 is located at the blanking station 121, the ending pressing member 181 is configured to press the length of the material tape 10 wound around the winding needle 134 of the second winding member 132 onto the winding needle 134 of the second winding member 132.

Therefore, when the cutting knife 142 cuts the material tape 10 between the first winding member 131 and the second winding member 132, the ending pressing member 181 is arranged, so that the winding effect of the section of the material tape 10 wound on the first winding member 131 or the second winding member 132 can be ensured.

Specifically, the ending component 180 includes a support 182, a pressing driving element 1811 disposed on the support 182, and a pressing roller 1812 connected to the pressing driving element 1811, when the pressing driving element 1811 drives the pressing roller 1812 to press the winding needle 134 of the first winding element 131 or the second winding element 132, on one hand, the pressing roller 1812 can press the tape 10 to ensure the effect of winding the tape 10 on the winding needle 134, and on the other hand, the pressing roller 1812 is in rolling contact with the tape 10, so that the friction between the tape 10 and the pressing roller 1812 can be reduced, and the winding effect of the tape 10 is further ensured.

Referring to fig. 9 and 10, in some possible embodiments, the ending absorption member 183 is disposed near the blanking station 121, and the ending absorption member 183 is used for absorbing the cut material tape 10 near the blanking station 121 to prevent the free end of the material tape 10 from swinging.

Through setting up the ending and adsorbing piece 183, can adsorb one section material area 10 that is close to unloading station 121 to when making one section material area 10 that is close to unloading station 121 convolute on the winding needle 134 of unloading station 121, the wobbling condition can not take place for the free end of material area 10, colloquially, the condition of pendulum tail can not take place for the free end of material area 10, when making one section material area 10 that is close to unloading station 121 convolute on the winding needle 134 of unloading station 121, more neat of coiling.

In some possible embodiments, the endgate assembly 180 further includes a compression roller 184, the compression roller 184 being configured to move toward the second roller 1625 to abut the strip 10 before being cut against the second roller 1625.

Therefore, by providing the pressing roller 184, the tape 10 can be abutted on the second roller 1625 before the tape 10 is cut off, and on one hand, the cutting effect of the cutter 142 can be ensured. On the other hand, the free end of the tape 10 can be prevented from swinging around after the tape 10 is cut.

Specifically, the ending adsorbing element 183 includes a second adsorbing plate 1832, the ending adsorbing element 183 further includes a locking driving element 1831 disposed on the support 182, before the cutter 142 cuts the material tape 10 between the first winding element 131 and the second winding element 132, the locking driving element 1831 drives the pressing roller 184 to abut against the second roller 1625, so that the material tape 10 is fixed on the abutting element 162, and at the same time, the second adsorbing plate 1832 adsorbs a section of the material tape 10 close to the blanking station 121, and then the cutter 142 cuts the material tape 10 between the first winding element 131 and the second winding element 132, thereby ensuring the effect of cutting the material tape 10 by the cutter 142, and after the cutter 142 cuts the material tape 10, the pressing roller 184 can still abut against the second roller 1625, so as to prevent the cut material tape 10 from swaying.

It is thus clear that through setting up ending adsorption element 183, can guarantee that cutter 142 cuts off the effect in material area 10, can also avoid the condition that the tail wagons appear in one section material area 10 that is close to unloading station 121 simultaneously, and then guaranteed the coiling effect of rolling up the core.

Referring to fig. 11, the present embodiment also provides a winding method, which is applied to the winding device 100 in the above embodiment, and the winding method includes:

and S10, arranging the material belt in a winding needle gap of a first winding piece positioned at a winding station.

Specifically, an auxiliary tool or a manual operation is used to set the initial section of the material tape 10 in the needle winding gap 1341 of the first winding member 131, and the initial ends of the material tape 10 of the second winding member 132, the third winding member, and the like are slidably extended out of the needle winding seat 133 through the corresponding needle winding 134 and are inserted into the needle winding gap 1341.

S20, rotating the winding needle seat of the first winding piece to wind the material belt with the first length transmitted by the discharging mechanism on the winding needle of the first winding piece.

Specifically, the winding needle holder 133 of the first winding member 131 may be rotated manually or electrically, and the winding needle holder 133 of the first winding member 131 is generally rotated electrically in consideration of the winding efficiency of the first winding member 131. For example, the winding needle holder 133 of the first winding member 131 is connected to a motor, the motor is electrically connected to a controller, and the controller can control the motor to rotate the winding needle holder 133.

And S30, rotating the rotating disc to enable the first winding piece to rotate to the blanking station and the second winding piece to rotate to the winding station.

Specifically, the rotary disk 120 may be rotated manually or electrically, and also, in consideration of the winding efficiency of the winding core, a motor electrically connected to the controller is provided to drive the rotary disk 120 to rotate. The rotation angle of the rotating disc 120 is also fixed, in other words, each rotation of the rotating disc 120 rotates the first winding member 131 from the winding station 122 to the blanking station 121, while at the same time the second winding member 132 is positioned at the winding station 122. Therefore, the rotation angle of the rotating disk 120 is not limited, and the two winding pins 134 may be rotated and switched between the feeding station 121 and the winding station 122 after the rotating disk 120 rotates.

And S40, the winding needle seat of the second winding part drives the two winding needles to slide along the axial direction of the winding needles to extend out of the rotating disc, so that the material belt is positioned in the winding needle gaps of the second winding part.

When the rotating disc 120 rotates to enable the first winding member 131 to rotate to the blanking station 121 and the second winding member 132 to rotate to the winding station 122, a part of the first length of the strip 10 conveyed by the discharge mechanism 110 is wound on the first winding member 131, and a part of the first length of the strip is located between the first winding member 131 and the discharge mechanism 110, in order to enable the second winding member 132 to be wound smoothly, the winding needle seat 133 can drive the two winding needles 134 to slide relative to the rotating disc 120, so that the winding needles 134 are driven by the winding needle seat 133 to slide and extend relative to the winding needle seat 133, and the strip 10 located between the first winding member 131 and the discharge mechanism 110 can penetrate through the winding needle gap 1341.

And S50, rotating the needle rolling seat of the second winding piece to synchronously wind the material belt with the second length conveyed by the discharging mechanism and the material belt with the third length unwound by the first winding piece on the needle of the second winding piece.

Wherein the third length is less than the first length.

Considering that the first winding member 131 is to unwind the third length of the tape 10 to the second winding member 132, when the first winding member 131 winds the tape 10 conveyed by the discharge mechanism 110 at the winding station, the tape 10 conveyed by the discharge mechanism 110 can be wound by a third length of the tape 10 under the premise of winding to form a core, in other words, after the first winding member 131 unwinds the third length of the tape 10 to the second winding member 132, the first winding member 131 winds the tape 10 to form a core of a cell.

Wherein the third length may be at least 4/3 of a turn of the strip of material 10.

In addition, the second winding member 132 needs to unwind a third length of the material tape 10 to a third winding member, in other words, a previous winding member needs to unwind a third length of the material tape 10 to a next winding member, so as to ensure smooth winding of the next winding member.

It can be seen that, winding of the material tape 10 on the winding needle 134 can be achieved without arranging a clamping member on the winding needle 134, and the material tape winding device is suitable for winding of both a large-sized battery cell and a small-sized battery cell, and compared with the arrangement of the clamping member on the winding needle 134, the winding process of the winding needle 134 is simplified.

And S60, cutting the material belt between the first winding part and the second winding part after the first winding part unreels the material belt with a third length to the second winding part.

In order to form the core of the cell on the first winding member 131, the tape 10 between the first winding member 131 and the second winding member 132 needs to be cut, in this embodiment, the tape 10 between the first winding member 131 and the second winding member 132 is cut by a structure that the cutter driving member 141 drives the cutter 142.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A winding device, comprising:

the discharging mechanism (110), the discharging mechanism (110) is used for conveying the material belt (10);

a rotary disk (120), the rotary disk (120) being rotatable about an axis of the rotary disk (120);

a winding member (130), wherein the winding member (130) comprises a first winding member (131) and a second winding member (132), each of the first winding member (131) and the second winding member (132) comprises a winding needle seat (133) rotatably arranged on the rotating disk (120) around an axis thereof, and two winding needles (134) arranged on the winding needle seats (133), the winding needle seats (133) can drive the two winding needles (134) to axially extend along the winding needles (134) relative to the rotating disk (120), and a winding needle gap (1341) is formed between the two winding needles (134);

the cutter assembly (140), the cutter assembly (140) comprises a cutter driving member (141) and a cutter (142) connected with the cutter driving member (141);

when the first winding member (131) is located at the winding station (122), the material strip (10) is located in the needle winding gap (1341) of the first winding member (131), the needle winding seat (133) of the first winding member (131) is used for driving the corresponding needle winding (134) to rotate so as to wind the material strip (10) with the first length conveyed by the discharging mechanism (110) on the needle winding (134) of the first winding member (131), the rotating disc (120) is used for driving the first winding member (131) to rotate to the discharging station (121), the second winding member (132) to rotate to the winding station (122), the needle winding seat (133) of the second winding member (132) is used for driving the corresponding needle winding (134) to slide and extend relative to the rotating disc (120) so as to enable the material strip (10) to be located in the needle winding gap (1341) of the second winding member (132), the needle winding seat (133) of the second winding member (132) is used for driving the corresponding needle winding seat (133) to drive the second winding needle winding seat (134) to synchronously convey the material strip (10) with the second length conveyed by the needle winding (134) and the material strip (10) of the second winding member (132), the cutter driving member (141) is configured to drive the cutter (142) to cut the material tape (10) between the first winding member (131) and the second winding member (132) after the first winding member (131) unreels the material tape (10) of the third length to the second winding member (132), where the third length is smaller than the first length.

2. Winding device according to claim 1, characterized in that a heating rod (143) is arranged inside the cutter (142), said heating rod (143) being adapted to heat the cutter (142).

3. The winding device according to claim 1, characterized in that it further comprises a drive and a connecting shaft (161) connected to the drive, the rotary disc (120) being coaxial with the connecting shaft (161) and the rotary disc (120) being fixedly connected to the connecting shaft (161);

the connecting shaft (161) is provided with an abutting piece (162), and the abutting piece (162) is used for providing abutting force for the material belt (10) when the cutter (142) cuts the material belt (10);

support and be provided with and dodge groove (1621) to piece (162), dodge groove (1621) and be used for dodging cutter (142).

4. Spooling device according to claim 3, characterized in that the side of the abutment member (162) facing the material web (10) is provided with a second suction aperture (1623), which second suction aperture (1623) is intended for suction of the material web (10).

5. Spooling apparatus as defined in any of claims 1-4, further comprising:

the tension assembly (170) comprises a tension driving piece (171) and a roller (172), wherein the tension driving piece (171) can drive the roller (172) to move so as to adjust the tension of the material belt (10) when the winding piece (130) positioned at the blanking station (121) is unwound.

6. Winding device according to claim 5, further comprising a first roller (1624) and a second roller (1625) rotatably arranged, said first roller (1624) and said second roller (1625) being opposite and spaced apart, said tension drive (171) being adapted to move said roller (172) between said first roller (1624) and said second roller (1625) to press said web (10) passing around said roller (172) between said first roller (1624) and said second roller (1625) to adjust the tension of said web (10) when the winding member (130) at said feeding station (121) is unwound.

7. Spooling device as claimed in claim 6, characterized in that the spooling device further comprises a displacement sensor, which is electrically connected to the tension drive (171), for detecting the displacement of the roller (172) movement.

8. Winding device according to any one of claims 1 to 4, characterized in that it further comprises a closing-out assembly (180), said closing-out assembly (180) comprising a closing-out pressing member (181), said closing-out pressing member (181) being adapted to press said cut strip (10) adjacent to said blanking station (121) against said winding needles (134) of said blanking station (121).

9. Winding device according to claim 8, wherein the endmost assembly (180) further comprises an endmost suction member (183), the endmost suction member (183) being adapted to suck the cut strip (10) close to the blanking station (121) to prevent the free end of the strip (10) from swinging.

10. Spooling apparatus as defined in claim 9, further comprising a second rotatably disposed roller (1625);

the ending component (180) further comprises a pressing roller (184), and the pressing roller (184) is used for moving towards the second roller (1625) so as to abut the material belt (10) before cutting against the second roller (1625).