CN115663301A - Composite battery winding all-in-one machine - Google Patents
Composite battery winding all-in-one machine Download PDFInfo
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- CN115663301A CN115663301A CN202211062225.0A CN202211062225A CN115663301A CN 115663301 A CN115663301 A CN 115663301A CN 202211062225 A CN202211062225 A CN 202211062225A CN 115663301 A CN115663301 A CN 115663301A
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Abstract
The invention discloses a winding all-in-one machine of a composite battery, which comprises a first diaphragm unwinding unit, a negative electrode unwinding unit, a second diaphragm unwinding unit, a composite unit, a positive electrode unwinding unit and a winding unit, wherein the first diaphragm unwinding unit, the negative electrode unwinding unit and the second diaphragm unwinding unit are connected with the winding unit through the composite unit, the positive electrode unwinding unit is connected with the winding unit, the first diaphragm unwinding unit, the negative electrode unwinding unit and the second diaphragm unwinding unit compound a first diaphragm, a negative electrode plate and a second diaphragm through the composite unit to form a composite sheet, and the composite sheet and the positive electrode plate are wound into a battery core through the winding unit. According to the invention, the two layers of diaphragms are firstly compounded with the negative pole piece and then wound with the positive pole piece to form the battery cell, so that the rigidity of the negative pole piece can be enhanced, the positive and negative sides of the negative pole piece are detected in real time by combining with the CCD, the winding of the negative pole piece can be ensured not to wrinkle, the corner of the battery cell is ensured not to fall off powder, the head of the negative pole is ensured not to roll up, and the production yield is improved.
Description
Technical Field
The invention relates to the technical field of battery core manufacturing, in particular to a composite battery winding all-in-one machine.
Background
The electric core is generally formed by sequentially winding a first layer of diaphragm, a negative pole piece, a second diaphragm and a positive pole piece, the winding needs to be completed through a winding machine, the existing winding machine is a mode that four materials are gathered together through a plurality of rollers, the mode has the defects of difficult tension control and poor deviation correction alignment degree, and because the rigidity of the negative pole piece is not enough, a series of problems such as wrinkles are easily generated during winding, the quality of an electric core product is poor, and the consistency of the product is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a composite battery winding all-in-one machine.
The technical scheme of the invention is as follows:
the utility model provides a composite battery coiling all-in-one, includes that first diaphragm unreels the unit, negative pole unreels the unit, the second diaphragm unreels the unit, compound unit, positive pole unreels unit and coiling unit, first diaphragm unreels the unit, negative pole unreels the unit, the second diaphragm unreels the unit and passes through compound unit and coiling unit connection, negative pole unreels the mechanism, negative pole piece brush dust removal mechanism, decides rubberizing mechanism, first negative pole piece drive mechanism, rubberizing buffer memory mechanism, negative pole piece mechanism, second negative pole piece drive mechanism, negative pole piece tension control mechanism and negative pole piece length measuring device that the negative pole unreeled the unit and set gradually along the tape transport direction, positive pole unreel the unit and be connected with the coiling unit, positive pole unreel the unit and include positive pole piece unreel the mechanism, positive pole piece brush dust removal mechanism, positive pole unreel buffer memory mechanism, first positive pole piece drive mechanism, positive pole piece tension control mechanism, positive pole piece length measuring device, second positive pole piece and feeding mechanism that set gradually along the tape transport direction, first positive pole piece unreels the unit, negative pole piece, the negative pole piece unreels the unit and coil the compound piece and coil positive pole piece and the negative pole piece and pass through compound piece with the negative pole piece.
Further, compound unit includes along the preheating component, compound subassembly, the positive CCD detection device that crumples that sets gradually of tape transport direction, back crumples CCD detection device, compound buffer gear, compound piece drive mechanism, compound piece tension control mechanism, compound piece mechanism and compound piece length measuring device of rectifying, preheat the subassembly and preheat the material before compounding, compound subassembly carries out the compound action of first diaphragm, negative pole piece and second diaphragm, the positive CCD detection device that crumples uses the line to sweep the camera and carries out real-time detection to the front of compound piece, the back is crumpled CCD detection device and is used the line to sweep the camera and carry out real-time detection to the back of compound piece, compound buffer gear carries out the compound piece of combined material storage, compound piece drive mechanism pulls before convoluteing, compound piece tension control mechanism carries out the coiling tension control of compound piece, the mechanism of rectifying rectifies and rectifies before convolutes compound piece, compound piece length measuring device carries out the length measuring before convoluteing.
Further, the winding unit includes that the winding head, compound piece are supplementary to rectify mechanism, anodal supplementary mechanism, the diaphragm cutting mechanism of rectifying, ending rubberizing mechanism and unloading mechanism of rectifying, the winding head sets up for rotating, the winding head is equipped with winding station, ending rubberizing station and unloading station along the direction of rotation in proper order, the supplementary mechanism setting of rectifying of compound piece is between compound unit and winding station, anodal supplementary mechanism setting of rectifying is between anodal unwinding unit and winding station, diaphragm cutting mechanism sets up the corresponding winding station in one side of winding head, ending rubberizing mechanism sets up and corresponds ending rubberizing station in one side of winding head, unloading mechanism sets up and corresponds unloading station in one side of winding head.
Further, diaphragm cutting mechanism includes that laser instrument, laser instrument adjust the module, goes up the compression roller and stretches out the cylinder, lower compression roller and stretch out sharp module, it stretches out cylinder, laser instrument adjust the module, lower compression roller and stretches out sharp module from last down and down set gradually to go up the compression roller, and the output all faces the coiling station, it stretches out the output of cylinder with last compression roller and is connected to go up the compression roller, the laser instrument is connected with the output of laser instrument adjust the module, the compression roller is connected with the output that lower compression roller stretched out sharp module.
Further, unloading mechanism includes the unloading clamp, unloading belt line and the pre-compaction device of electric core that set gradually along the unloading direction.
Furthermore, the first diaphragm unwinding unit comprises a first diaphragm unwinding mechanism, a first diaphragm tension control mechanism and a first diaphragm length measuring device which are sequentially arranged along the tape running direction.
Furthermore, the second membrane unreeling unit comprises a second membrane unreeling mechanism and a second membrane tension control mechanism which are sequentially arranged along the tape transport direction.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, a mode that two layers of diaphragms are firstly compounded with a negative pole piece and then are wound with a positive pole piece to form the battery cell is adopted, the two layers of diaphragms are firstly compounded with the negative pole piece, the rigidity of the negative pole piece can be enhanced, and the positive and negative sides of the negative pole piece are detected in real time (compound crumpling detection or adhesive crumpling detection) in combination with a CCD (charge coupled device), so that the winding of the negative pole piece can be ensured not to be crumpled, the corner of the battery cell is ensured not to fall off powder, the head of the negative pole is ensured not to be curled, the production yield is improved, the defective piece can be ensured to be independently wound and removed, materials can be saved, and the defective piece can be ensured not to enter a normal battery cell;
2. the negative pole piece is compounded after cutting and rubberizing, (1) the continuity of the negative pole piece during compounding can be guaranteed, frequent acceleration and deceleration are not needed, the compounding efficiency is improved, (2) the rubberizing of a cut opening of the negative pole piece can guarantee that burrs of the negative pole piece at the cutting position cannot pierce through a diaphragm, the safety of an electric core is improved, and (3) the tension of the negative pole piece can be increased before compounding, so that the negative pole piece is prevented from being wrinkled;
3. the two layers of diaphragms are preheated before being compounded with the negative pole piece, so that the diaphragms are preheated in advance, the compounding effect can be optimized, and the compounding line speed can be increased;
4. after the composite sheet CCD is detected, closed-loop correction is carried out through a composite sheet auxiliary correction mechanism, so that the alignment degree of the composite sheet can be well ensured;
5. the winding unit is used for pasting glue on the winding needle and pasting the diaphragm on the gummed paper adsorbed by the winding needle for winding by using a non-clamping needle blanking mode (clamping jaw blanking), so that the diaphragm does not pass through the center of the winding needle to realize non-stop winding, the blanking time and the auxiliary time can be saved, and the winding efficiency is improved;
6. cutting by a diaphragm cutting mechanism after winding, (1) the diaphragm cutting mechanism can realize the diaphragm chasing and cutting function, (2) the head part of the diaphragm is pressed by an upper press roller and a lower press roller during chasing and cutting, follow the book needle and convolute, realize that the coiling does not have diaphragm and press from both sides the needle and take up, (3) laser cutting mode, the dust is few, (4) the adhesive tape cuts off and can not appear melting the limit problem, can guarantee electric core quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and 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 composite battery winding all-in-one machine provided by the invention;
FIG. 2 is a process flow diagram of a composite battery winding integrated machine provided by the invention;
fig. 3 is a schematic structural diagram of a cell winding and laser cutting part of the composite battery winding all-in-one machine provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Examples
Referring to fig. 1 and 2, the embodiment provides a composite battery winding all-in-one machine, which includes a first diaphragm unwinding unit, a negative electrode unwinding unit, a second diaphragm unwinding unit, a composite unit, a positive electrode unwinding unit and a winding unit, wherein the first diaphragm unwinding unit, the negative electrode unwinding unit and the second diaphragm unwinding unit are connected to the winding unit through the composite unit, the positive electrode unwinding unit is connected to the winding unit, the first diaphragm unwinding unit, the negative electrode unwinding unit and the second diaphragm unwinding unit combine the first diaphragm, the negative electrode sheet and the second diaphragm through the composite unit to form a composite sheet, and the composite sheet and the positive electrode sheet are wound into a battery cell through the winding unit.
Specifically, the first membrane unwinding unit comprises a first membrane unwinding mechanism 11, a first membrane tension control mechanism 12 and a first membrane length measuring device 13 which are sequentially arranged along the tape running direction. The first diaphragm tension control mechanism 12 controls the winding tension of the first diaphragm; the first diaphragm length measuring device 13 measures the length of the first diaphragm before compounding.
Specifically, the negative pole unreeling unit comprises a negative pole unreeling mechanism 20, a negative pole unreeling caching mechanism 21, a negative pole piece brush dust removal mechanism 22, a cutting rubberizing mechanism 23, a first negative pole piece traction mechanism 24, a rubberizing caching mechanism 25, a negative pole piece deviation rectifying mechanism 26, a second negative pole piece traction mechanism 27, a negative pole piece tension control mechanism 28 and a negative pole piece length measuring device 29 which are sequentially arranged along the tape transport direction. The negative pole pieces are cut and rubberized (single-sided or double-sided) by the cutting rubberizing mechanism 23 before compounding, (1) the continuity of the negative pole pieces during compounding is ensured, the compounding is not stopped due to the fact that the negative pole needs to be cut during compounding, and the compounding efficiency is improved, (2) the rubberizing at the cutting position can ensure that burrs of a fracture do not leak and pierce through a diaphragm, so that the quality of a subsequent finished product battery cell is influenced, (3) the normal operation of a subsequent winding process is ensured, and a diaphragm with a certain length is arranged between the two negative pole pieces; since the cutting rubberizing is asynchronous with the compounding time, the rubberizing caching mechanism 25 is required to store the negative pole piece; the first negative pole piece traction mechanism 24 is used for carrying out pole piece traction for cutting and rubberizing, and the position precision of the negative pole piece cutting and rubberizing in the tape feeding direction is guaranteed; the negative pole piece deviation rectifying mechanism 26 rectifies the deviation before compounding, so that the position accuracy of compounding of the negative pole piece and the diaphragm can be ensured; the second negative pole piece traction mechanism 27 is used for carrying out pole piece traction before compounding, so that the position precision of the negative pole piece in the tape running direction during compounding is ensured; the negative pole piece tension control mechanism 28 controls the winding tension of the negative pole piece so as to ensure the quality of the pole piece and the diaphragm during winding; the negative electrode plate length measuring device 29 measures the length of the electrode plate before compounding, and ensures the position of the electrode plate in the tape transport direction during compounding.
Specifically, the second membrane unwinding unit includes a second membrane unwinding mechanism 31 and a second membrane tension control mechanism 32, which are sequentially arranged along the tape running direction. The second diaphragm tension control mechanism 32 controls the winding tension of the second diaphragm.
Specifically, the composite unit comprises a preheating assembly 41, a composite assembly 42, a front-face crumpling CCD detection device 43, a back-face crumpling CCD detection device 44, a composite cache mechanism 45, a composite sheet traction mechanism 46, a composite sheet tension control mechanism 47, a composite sheet deviation correction mechanism 48 and a composite sheet length measuring device 49 which are sequentially arranged along the tape transport direction. Preheating the material before the preheating component 41 is compounded; the composite assembly 42 performs a composite action (continuous composite or intermittent composite) of the first diaphragm, the negative pole piece and the second diaphragm, so that the negative pole composite is adhered to the diaphragm without falling off, arching and bubble, the negative pole supplied materials comprise continuous smooth foils, negative pole gap coating (continuous middle smooth foil) and negative pole continuous coating, and because the two diaphragms and the negative pole are combined together, (1) the negative pole supplied materials are the continuous smooth foils or the gap coating and can be continuously combined without cutting and rubberizing, when winding is completed, cutting is performed by laser cutting (two diaphragms and two smooth foils are cut off), (2) the negative pole supplied materials are the continuous coating, cutting and rubberizing are performed first and then are continuously combined, cutting can be performed by laser cutting and can also be performed by conventional hot cutting (two diaphragms and two gummed papers are cut off); the front-surface wrinkling CCD detecting device 43 uses a line-scanning camera to detect the front surface of the composite sheet in real time, the back-surface wrinkling CCD detecting device 44 uses a line-scanning camera to detect the back surface of the composite sheet in real time, whether wrinkling exists in the composite and post-composite adhesive tape is ensured, and the wrinkling is fed back to the PLC for subsequent independent winding and removal; because the linear speeds of the composite assembly 42 and the winding part are asynchronous, composite material storage is required to be carried out through the composite cache mechanism 45; the composite sheet traction mechanism 46 is used for traction of the composite sheet before winding, so that the position precision of the composite sheet in the winding direction is ensured; the composite sheet tension control mechanism 47 controls the winding tension of the composite sheet; the composite sheet deviation rectifying mechanism 48 rectifies the deviation of the composite sheet before winding; the composite sheet length measuring device 49 measures the length of the composite sheet before winding.
Specifically, the positive electrode unwinding unit includes a positive electrode unwinding mechanism 51, a positive electrode brush dust removal mechanism 52, a positive electrode unwinding buffer mechanism 53, a first positive electrode deviation correcting mechanism 54, a positive electrode traction mechanism 55, a positive electrode tension control mechanism 56, a positive electrode length measuring device 57, a second positive electrode deviation correcting mechanism 58, and a positive electrode feeding mechanism 59, which are sequentially arranged along the tape transport direction.
Specifically, the winding unit includes a winding head 61, a composite sheet auxiliary deviation correcting mechanism 62, an anode auxiliary deviation correcting mechanism 63, a diaphragm cutting mechanism 64, a tail-ending rubberizing mechanism 65 and a blanking mechanism, the winding head 61 is rotatably arranged, the winding head 61 is sequentially provided with a winding station 611, a tail-ending rubberizing station 612 and a blanking station 613 along a rotating direction, the composite sheet auxiliary deviation correcting mechanism 62 is arranged between the composite unit and the winding station 611, the anode auxiliary deviation correcting mechanism 63 is arranged between the anode unwinding unit and the winding station 611, the diaphragm cutting mechanism 64 is arranged on one side of the winding head 61 corresponding to the winding station 611, the tail-ending rubberizing mechanism 65 is arranged on one side of the winding head 61 corresponding to the tail-ending rubberizing station 612, and the blanking mechanism is arranged on one side of the winding head 61 corresponding to the blanking station 613. The compound sheet auxiliary deviation rectifying mechanism 62 carries out closed-loop feedback deviation rectifying after detecting the position of the compound sheet in real time by using a line scanning camera, so as to ensure the alignment degree of the compound sheet before rolling; the positive electrode auxiliary deviation rectifying mechanism 63 realizes the main driving-in of the positive electrode plate by using four-roller driving, the precision of the main driving-in of the positive electrode plate is ensured, and the alignment degree of the positive electrode plate before the positive electrode plate is rolled is ensured by detecting the position of the positive electrode plate in real time and rectifying deviation through the alignment degree detection device 66 on one side; referring to fig. 3, the diaphragm cutting mechanism 64 includes a laser 641, a laser adjustment module 642, an upper press roller 643, an upper press roller extending cylinder 644, a lower press roller 645 and a lower press roller extending linear module 646, wherein the upper press roller extending cylinder 644, the laser adjustment module 642 and the lower press roller extending linear module 646 are sequentially arranged from top to bottom, output ends of the upper press roller extending cylinder 644, the laser adjustment module 642 and the lower press roller extending linear module 646 face a winding station 611, the upper press roller 643 is connected with the output end of the upper press roller extending cylinder 644, the laser 641 is connected with the output end of the laser adjustment module 642, the lower press roller 645 is connected with the output end of the lower press roller extending linear module 646, and a roll material is pressed by the upper press roller 643 and the lower press roller 645 during laser cutting; the ending adhesive tape sticking mechanism 65 sticks adhesive tape on the winding needle, and sticks the diaphragm after the station is changed to the winding position, so as to ensure that the diaphragm can be adsorbed on the winding needle; unloading mechanism includes the unloading clamp 67, unloading belt line 68 and the pre-compaction device 69 of electric core that set gradually along the unloading direction, and during the unloading, use unloading clamp 67 to take out electric core and carry out the pre-compaction setting and shift, saved the unloading and pressed from both sides the needle action, improved complete machine efficiency.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a compound battery coiling all-in-one which characterized in that: the cathode unwinding unit comprises a cathode unwinding mechanism, a cathode unwinding caching mechanism, a cathode brush dust removal mechanism, a cutting rubberizing mechanism, a first cathode sheet traction mechanism, a rubberizing caching mechanism, a cathode sheet deviation correction mechanism, a second cathode sheet traction mechanism, a cathode sheet tension control mechanism and a cathode sheet length measuring device, the cathode unwinding mechanism, the cutting rubberizing mechanism, the first cathode sheet traction mechanism, the rubberizing caching mechanism, the cathode sheet deviation correction mechanism, the second cathode sheet traction mechanism, the cathode sheet tension control mechanism and the cathode sheet length measuring device are sequentially arranged along a belt direction, the cathode unwinding unit is connected with the winding unit, the cathode unwinding unit comprises a cathode unwinding mechanism, an anode brush sheet dust removal mechanism, a cathode unwinding caching mechanism, a first anode sheet traction mechanism, an anode sheet tension control mechanism, a cathode sheet length measuring device, a second anode sheet tension control mechanism and a feeding mechanism, and the first cathode sheet unwinding unit, the second cathode sheet unwinding unit and the second diaphragm unwinding unit form a composite sheet by winding the cathode sheet and the cathode sheet through the composite diaphragm unwinding unit and the composite sheet winding unit.
2. The compound battery winding all-in-one machine of claim 1, characterized in that: the composite unit comprises a preheating assembly, a composite assembly, a front wrinkle-removing CCD detection device, a back wrinkle-removing CCD detection device, a composite caching mechanism, a composite piece traction mechanism, a composite piece tension control mechanism, a composite piece deviation-correcting mechanism and a composite piece length measuring device which are sequentially arranged along the tape traveling direction, the material is preheated before the preheating assembly is compounded, the composite assembly performs composite action of a first diaphragm, a negative pole piece and a second diaphragm, the front wrinkle-removing CCD detection device performs real-time detection on the front of the composite piece by using a line scanning camera, the back wrinkle-removing CCD detection device performs real-time detection on the back of the composite piece by using a line scanning camera, the composite caching mechanism performs composite material traction on the composite piece before storing, the composite piece tension control mechanism performs composite piece winding tension control, the composite piece tension control mechanism performs deviation correction on the composite piece before deviation winding, and the length measuring device performs length measurement before winding.
3. The compound battery winding all-in-one machine of claim 1, characterized in that: the winding unit includes that winder, compound piece are supplementary to rectify mechanism, anodal supplementary mechanism, diaphragm cutting mechanism, the rubberizing mechanism of ending and unloading mechanism of rectifying, the winder sets up for rotating, the winder is equipped with winding station, ending rubberizing station and unloading station along the direction of rotation in proper order, compound piece is supplementary to rectify the mechanism and sets up between compound unit and winding station, anodal supplementary mechanism of rectifying sets up at anodal unreeling between unit and the winding station, diaphragm cutting mechanism sets up and corresponds the winding station in one side of winder, the rubberizing mechanism of ending sets up and corresponds the rubberizing station of ending in one side of winder, unloading mechanism sets up and corresponds the unloading station in one side of winder.
4. The composite battery winding all-in-one machine according to claim 3, characterized in that: diaphragm cutting mechanism includes laser instrument, laser instrument adjustment module, goes up the compression roller and stretches out the cylinder, lower compression roller and stretch out sharp module, go up compression roller stretch out cylinder, laser instrument adjustment module, lower compression roller stretch out sharp module from last down set gradually, and the output all towards the station of convoluteing, it stretches out the output of cylinder with last compression roller and is connected to go up the compression roller, the laser instrument is connected with the output of laser instrument adjustment module, the compression roller is connected with the output that lower compression roller stretches out sharp module down.
5. The compound battery winding all-in-one machine according to claim 3, characterized in that: the blanking mechanism comprises a blanking clamp, a blanking belt line and a battery cell prepressing device which are sequentially arranged along the blanking direction.
6. The compound battery winding all-in-one machine according to claim 1, characterized in that: the first diaphragm unwinding unit comprises a first diaphragm unwinding mechanism, a first diaphragm tension control mechanism and a first diaphragm length measuring device which are sequentially arranged along the tape running direction.
7. The compound battery winding all-in-one machine according to claim 1, characterized in that: the second diaphragm unwinding unit comprises a second diaphragm unwinding mechanism and a second diaphragm tension control mechanism which are sequentially arranged along the tape running direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211062225.0A CN115663301A (en) | 2022-08-31 | 2022-08-31 | Composite battery winding all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211062225.0A CN115663301A (en) | 2022-08-31 | 2022-08-31 | Composite battery winding all-in-one machine |
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| Publication Number | Publication Date |
|---|---|
| CN115663301A true CN115663301A (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211062225.0A Pending CN115663301A (en) | 2022-08-31 | 2022-08-31 | Composite battery winding all-in-one machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115663301A (en) |
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2022
- 2022-08-31 CN CN202211062225.0A patent/CN115663301A/en active Pending
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