CN218088061U - Compound electric core winding equipment of rubberizing after compound - Google Patents

Abstract

The utility model relates to a compound electric core coiling equipment of rubberizing after compound, including the subassembly that unreels, the subassembly that rectifies, tension control assembly, chase after and cut the subassembly, the diaphragm unreels the subassembly, compound subassembly, the rubberizing subassembly, detection component, pay-off subassembly and coiling subassembly, the subassembly that unreels first material of rolling up, first material is rolled up and is moved to the subassembly that rectifies in proper order, tension control assembly and chase after and cut the subassembly, chase after cut the subassembly and tailor first material and roll up and transfer to compound subassembly on first material, the diaphragm unreels the subassembly from the diaphragm and unreels to compound subassembly, compound subassembly is rolled up the compound material of formation to first material with the diaphragm, the rubberizing subassembly is at the compound attached adhesive tape in the position of only compound two-layer diaphragm that rolls up of material, compound material is rolled up behind detection component and tension control assembly, convey to the coiling subassembly to the subassembly, the material is rolled up to the second material through the subassembly that rectifies in proper order, convey to the coiling subassembly behind tension control assembly and the pay-off subassembly to the coiling subassembly, the coiling subassembly is rolled up compound material and is rolled up and is formed electricity core.

Description

Compound electric core winding equipment of rubberizing after compound

Technical Field

The utility model belongs to the technical field of the lithium cell production technique and specifically relates to a compound electric core coiling equipment of compound back rubberizing is related to.

Background

Nowadays, lithium ion batteries have been successfully applied to the fields of portable electronic products, electric automobiles and aerospace, and become a research hotspot for new energy materials. The lithium ion battery has a winding type structure and a laminated structure.

The winding core of the winding-type battery cell is generally formed by winding positive and negative electrode sheets formed by forming the electrode tabs and a diaphragm by using a winding machine. The problem that exists now is, after coiling and accomplishing an electric core, need cut off the pole piece, however after cutting off the pole piece, can produce the burr, and the diaphragm can be punctureed to these burrs, leads to electric core short circuit, and can produce the condition of crumpling after the diaphragm is compound, and these all can influence the quality of electric core to need to shut down and carry out the coiling after the fixed clamp is pressed from both sides to the diaphragm head through rolling up the interior clamp of needle, consequently roll up the needle winding process and can not go on in succession, thereby influence production efficiency.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a compound electric core coiling equipment of rubberizing behind compound to solve above-mentioned technical problem, improve coiling quality and efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a compound electric core coiling equipment of rubberizing after compound, including first unwinding subassembly, first deviation correcting assembly, first tension control subassembly, follow up cut subassembly, diaphragm unwinding subassembly, compound subassembly, rubberizing subassembly, detection component, second tension control subassembly, second unwinding subassembly, second deviation correcting assembly, third tension control subassembly, feeding components and coiling subassembly, first unwinding subassembly unreels the first material book, first material book moves in proper order to first deviation correcting assembly, first tension control subassembly with follow up cut the subassembly, follow cut the subassembly and cut the first material book and reach on the compound subassembly, the diaphragm follows diaphragm unwinding subassembly unreel to compound subassembly, and place the both ends of first material book in, compound material book subassembly will be compound to the both ends of first material book and form compound, rubberized paper is attached to the position of compound two-layer diaphragm only of rubberized paper in compound material book, compound material book after detection component and second tension control subassembly, convey to the coiling subassembly, the second material book feeds the second material book, the second material book passes through second tension control subassembly in proper order the second deviation correcting assembly conveys winding subassembly and coiling subassembly to the electric core winding subassembly, the winding after compound material book is transferred to the deviation correcting assembly and the compound winding subassembly.

As an optimal technical scheme, winding assembly is including first piece structure, the second piece structure of income, winding structure, cutter structure, subsides tail gum structure and blanking structure, first piece structure receipt compound material of income is rolled up and is conveyed winding structure, the second piece structure of income is received the second and is rolled up and convey to winding structure, winding structure roll up the compound material with the second is rolled up the material and is rolled up and form electric core, cutter structure is rolled up the compound material and is decided, paste the tail gum structure and paste the tail gum and attach in electric core surface, blanking structure will accomplish the electric core unloading of pasting the tail gum and to winding structure material loading adhesive tape.

As a preferred technical scheme, the first sheet feeding structure comprises a sheet feeding detection structure and a sheet feeding deviation rectifying structure, the sheet feeding detection structure detects the position of the composite material roll, and the sheet feeding deviation rectifying structure rectifies deviation of the composite material roll.

As a preferred technical scheme, the first unwinding assembly comprises an unwinding structure, an unwinding buffer structure and a brush dust removal structure, the unwinding structure unwinds the first material roll, and the first material roll is transmitted to the brush dust removal structure through the unwinding buffer structure to clean and remove dust on the surface of the first material roll.

As a preferred technical solution, the first tension control assembly includes a tension control structure, a tension sensor and a material roll length measuring structure, the material roll length measuring structure detects the position of the first material roll, the tension sensor senses the tension of the first material roll, and the tension control structure adjusts the tension of the first material roll.

As a preferred technical scheme, the chasing and cutting assembly comprises a pinch deviation correcting structure and a material roll cutter structure, the pinch deviation correcting structure clamps a first material roll, the material roll cutter structure cuts the first material roll, and the pinch deviation correcting structure moves the end part of the first material roll after cutting to the composite assembly.

As a preferred technical scheme, the composite assembly comprises a film combining structure, a preheating structure and a composite structure, wherein the film combining structure presses the membrane on two sides of the first material roll, the preheating structure preheats the membrane in advance, and the composite structure compounds the first material roll and the membrane to form the composite material roll.

As a preferred technical scheme, the detection assembly comprises a first detection structure, a second detection structure and a detection cache structure, wherein the first detection structure detects one side of the composite material roll, the second detection structure detects the other side of the composite material roll, and the detection cache structure caches the composite material roll.

As a preferred technical scheme, the feeding assembly comprises a feeding deviation rectifying structure, an embossing structure and a feeding structure, the feeding deviation rectifying structure rectifies the deviation of the second material roll, the embossing structure presses lines on the second material roll, and the feeding structure transfers the second material roll to the winding assembly.

The beneficial effects of the utility model reside in that: according to the composite battery core winding equipment with the composite back rubberizing, firstly, the diaphragms are compounded to the two ends of the first material roll, the rigidity of the first material roll can be enhanced, crumpling during winding of the material roll can be avoided, powder falling at the corners of the battery core can be avoided, the regularity of the heads of the positive electrode and the negative electrode can be improved, the quality and the safety of the battery core can be improved, gummed paper is pasted at the position where only two layers of diaphragms are compounded on the composite material roll, tensile deformation of the position where only two layers of diaphragms are compounded due to overlarge tension in the transmission process of the composite material roll can be avoided, meanwhile, the end portion of the first material roll can not be rolled up, the battery core formed by winding of the composite material roll is adopted, the diaphragms with a certain length exist between the two material rolls, normal operation of a follow-up winding process is guaranteed, the compounding efficiency is improved, the detection assembly can detect the crumpling condition of the composite material roll, defective products are identified and eliminated, the winding assembly does not need to stop to compound and fix the end portion of composite cutting, and the winding efficiency can be improved.

Drawings

Fig. 1 is a schematic structural view of a composite cell winding apparatus with post-lamination adhesive according to the present invention;

fig. 2 is a schematic view of a part of the structure of a composite cell winding device with composite back adhesive according to the present invention;

fig. 3 is a schematic view of a part of the structure of the composite cell winding device with the composite back tape according to the utility model;

fig. 4 is a schematic view of an end portion of a composite electrical core according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below 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.

As shown in fig. 1 and 4, a composite battery cell winding apparatus with post-lamination adhesive coating comprises a first unwinding assembly 1, a first deviation correcting assembly 2, a first tension control assembly 3, a post-cutting assembly 4, a first membrane unwinding assembly 5, a second membrane unwinding assembly 6, a composite assembly 7, an adhesive coating assembly 8, a detection assembly 9, a second tension control assembly 11, a second unwinding assembly 12, a second deviation correcting assembly 13, a third tension control assembly 14, a feeding assembly 15, a winding assembly 16, a blanking belt line 17 and a pre-pressing assembly 18, wherein the first unwinding assembly 1 unwinds a first membrane roll a, the first membrane roll a sequentially moves to the first deviation correcting assembly 2, the first tension control assembly 3 and the post-cutting assembly 4, the post-cutting assembly 4 moves the first membrane roll a to the composite assembly 7, and two membrane cutting assemblies b respectively unwind from the first membrane unwinding assembly 5 and the second membrane unwinding assembly 6 to the composite assembly 7, the composite material roll is placed at two ends of a first material roll a, a composite assembly 7 compounds a diaphragm b to two ends of the first material roll a to form a composite material roll c, a rubberizing assembly 8 attaches gummed paper e on the diaphragm b of the composite material roll c on one or two end faces between every two sections of the first material rolls a, namely, the gummed paper e is only compounded at two layers of diaphragms b on the composite material roll c, the composite material roll c passes through a detection assembly 9 and a second tension control assembly 11 and is conveyed to a winding assembly 16, a second unwinding assembly 12 unwinds a second material roll d, the second material roll d passes through a second deviation correcting assembly 13, a third tension control assembly 14 and a feeding assembly 15 in sequence and is conveyed to the winding assembly 16, the winding assembly 16 winds the composite material roll c and the second material roll d to form a battery core and discharges the battery core onto a discharging belt line 17, the discharging belt line 17 moves the battery core to a position 18 for prepressing, the method comprises the steps of firstly compounding the diaphragms b to two ends of the first material roll a, strengthening the rigidity of the first material roll a, avoiding wrinkling when the first material roll a is wound, ensuring that powder does not fall at the corners of an electric core, improving the uniformity of the heads of a positive electrode and a negative electrode, improving the quality and the safety of the electric core, pasting gummed paper c on the position of only two layers of diaphragms b compounded on the composite material roll c, avoiding tensile deformation of the position of only two layers of diaphragms b compounded due to overlarge tension in the transmission process of the composite material roll c, simultaneously preventing the end part of the first material roll a from being wound, enabling the electric core formed by winding the composite material roll c to have the diaphragms b with a certain length in the middle of the two material rolls a, ensuring the normal operation of a subsequent winding process, improving the compounding efficiency, detecting assembly 9 capable of detecting the wrinkling condition of the composite material roll c, identifying and eliminating defective products, and winding assembly 16 capable of cutting the end part of the composite material roll c without stopping the machine and fixing the composite material roll c, and improving the winding efficiency. In this embodiment, the first roll a and the second roll d are pole pieces or foils, the first roll a is preferably a negative pole piece, the second roll d is preferably a positive pole piece, and the composite roll c is a composite pole piece formed by compounding two layers of separators b on two end faces of the negative pole piece.

As shown in fig. 2 and fig. 4, in particular, the first unwinding assembly 1 includes a first unwinding structure 101, a first unwinding buffer structure 102, and a first brush dust removing structure 103, where the first unwinding structure 101 unwinds the first material roll a, and the first material roll a is transmitted to the first brush dust removing structure 103 through the first unwinding buffer structure 102 to clean and remove dust on the surface of the first material roll a.

Specifically, the first deviation rectifying assembly 2 includes a first deviation rectifying structure 21 and a first traction structure 22, the first deviation rectifying structure 21 can rectify the deviation of the first material roll a after unwinding, so as to ensure the composite precision of the first material roll a and the diaphragm b, and the first traction structure 22 pulls the first material roll a to the first tension control assembly 3.

Specifically, the first tension control assembly 3 includes a first tension control structure 31, a first tension sensor 32 and a first material roll length measuring structure 33, the first material roll a sequentially passes through the first tension control structure 31, the first tension sensor 32 and the first material roll length measuring structure 33, the first material roll length measuring structure 33 detects the position of the first material roll a, the first tension sensor 32 senses the tension of the first material roll a, and the first tension control structure 31 adjusts the tension of the first material roll a.

Specifically, the chasing and cutting component 4 comprises a clamping and conveying deviation correcting structure 41 and a material roll cutting structure 42, the clamping and conveying deviation correcting structure 41 clamps a first material roll a, the clamping and conveying deviation correcting structure 41 and the material roll cutting structure 42 are driven along with the first material roll a, the first material roll a is cut off by the material roll cutting structure 42 in the moving process of the first material roll a, the clamping and conveying deviation correcting structure 41 moves the cut end portion of the first material roll a to the composite component 7, the material roll a can continue to be driven, the cutting mode can cut the first material roll a in the moving process of the first material roll a, the cutting is not required to be stopped, the composite efficiency is improved, the clamping and conveying deviation correcting structure 41 moves the cut end portion of the first material roll a to the composite component 7 in real time, and the position accuracy between the deviation correcting first material roll a and the diaphragm b is guaranteed.

Specifically, the first membrane unreeling assembly 5 includes a first membrane unreeling structure 51, a first membrane tension control structure 52 and a membrane length measuring structure 53, the membrane b is unreeled through the first membrane unreeling structure 51 and is transmitted to one side of the first material roll a through the first membrane tension control structure 52 and the membrane length measuring structure 53, the first membrane tension control structure 52 adjusts the tension of the membrane b, and the membrane length measuring structure 53 detects the position of the membrane b.

Specifically, the second membrane unreeling assembly 6 includes a second membrane unreeling structure 61 and a second membrane tension control structure 62, the membrane b is unreeled through the second membrane unreeling structure 61 and is transmitted to the other side of the first material roll a through the second membrane tension control structure 62, and the second membrane tension control structure 62 adjusts the tension of the membrane b.

Specifically, the composite assembly 7 comprises a combining structure 71, a preheating structure 72 and a composite structure 73, the combining structure 71 pre-presses two layers of diaphragms b on two sides of a first material roll a in advance, it is guaranteed that the relative positions of the first material roll a and the diaphragms b are not changed, the preheating structure 72 preheats the diaphragms b in advance, the composite linear speed can be improved, the composite efficiency is further improved, the composite structure 73 compounds the first material roll a and the diaphragms b to form a composite material roll c, and it is guaranteed that the first material roll a and the diaphragms b do not fall off or arch or have bubbles. The composite structure 73 comprises an electromagnetic heating shaft, a main drive motor, a dust removal scraper and a wiping roller, wherein the main drive motor drives the electromagnetic heating shaft to rotate, a first material coil a and a diaphragm b are compounded between the two electromagnetic heating shafts to form a composite material coil c, and the dust removal scraper and the wiping roller remove dust from the electromagnetic heating shaft, so that the electromagnetic heating shaft is kept clean, and dust and particles adhered in the compounding process are reduced, and the compounding effect is influenced.

Specifically, the detecting assembly 9 includes a first detecting structure 91, a second detecting structure 92 and a detecting buffer structure 93, the first detecting structure 91 detects one side of the composite material roll c, the second detecting structure 92 detects the other side of the composite material roll c, the first detecting structure 91 and the second detecting structure 92 detect that the composite material roll c is wrinkled, the composite material roll c with wrinkles is regarded as a defective product, and the detecting buffer structure 93 buffers the composite material roll c.

As shown in fig. 3 and fig. 4, in detail, the second tension control assembly 11 includes a second tension control structure 111, a second tension sensor 112 and a second material roll length measuring structure 113, the composite material roll c passes through the second tension control structure 111, the second tension sensor 112 and the second material roll length measuring structure 113 in sequence, the second material roll length measuring structure 113 detects the position of the composite material roll c, the second tension sensor 112 senses the tension of the composite material roll c, and the second tension control structure 111 adjusts the tension of the composite material roll c.

Specifically, the second unwinding assembly 12 includes a second unwinding structure 121, a second unwinding buffer structure 122 and a second brush dust removal structure 123, the second unwinding structure 121 unwinds the second material roll d, and the second material roll d is transmitted to the second brush dust removal structure 123 through the second unwinding buffer structure 122 to clean and remove dust on the surface of the second material roll d.

Specifically, the second deviation rectifying assembly 13 includes a second deviation rectifying structure 131 and a second traction structure 132, the second deviation rectifying structure 131 can rectify the deviation of the second material roll d after unwinding, so as to ensure the winding precision of the second material roll d, and the second traction structure 132 pulls the second material roll d to the third tension control assembly 14.

Specifically, the third tension control assembly 14 includes a third tension control structure 141, a third tension sensor 142 and a third material roll length measuring structure 143, the second material roll d passes through the third tension control structure 141, the third tension sensor 142 and the third material roll length measuring structure 143 in sequence, the third material roll length measuring structure 143 detects the position of the second material roll d, the third tension sensor 142 senses the tension of the second material roll d, and the third tension control structure 141 adjusts the tension of the second material roll d.

Specifically, the feeding assembly 15 includes a feeding deviation rectifying structure 151, an embossing structure 152 and a feeding structure 153, the feeding deviation rectifying structure 151 rectifies the deviation of the second material coil d, the position accuracy of the second material coil d during feeding is guaranteed, the embossing structure 152 presses grains on the second material coil d, and the feeding structure 153 transfers the second material coil d to the winding assembly 16 for winding.

Specifically, the winding assembly 16 includes a first sheet feeding structure 161, a second sheet feeding structure 162, a winding structure 167, a cutter structure 163, a tail glue pasting structure 164, a blanking structure 165, and an alignment degree detection structure 166, where the first sheet feeding structure 161 receives the composite material roll c, performs deviation correction, and then transmits the composite material roll c to the winding structure 167, the second sheet feeding structure 162 receives the second material roll d, performs deviation correction, and then transmits the second material roll d to the winding structure 167, the alignment degree detection structure 166 detects whether the composite material roll c and the second material roll d are aligned, the winding structure 167 winds the composite material roll c and the second material roll d to form a battery cell, the cutter structure 163 cuts off only the composite two-side diaphragm b on the composite material roll c, the tail glue pasting structure 164 pastes the tail glue on the surface of the battery cell, and the blanking structure 165 blanks the battery cell which finishes tail glue pasting, and charges a glue paper e to the winding structure 167. The first sheet feeding structure 161 comprises a sheet feeding detection structure 1611 and a sheet feeding deviation rectifying structure 1612, the sheet feeding detection structure 1611 detects the position of the composite material roll c, and the sheet feeding deviation rectifying structure 1612 rectifies the deviation of the composite material roll c. Winding structure 167 can directly roll up through the tip that the compound material of adhesive e adhesion was rolled up c, need not to shut down the tip of fixed compound material book c, can save down time, improves winding efficiency, and cutter structure 163 can cut off compound material book c at the in-process that winding structure 167 traded the station, need not to shut down and tailors, improves winding efficiency.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims (9)

1. The utility model provides a compound electric core coiling equipment of rubberizing after compound, its characterized in that, including first subassembly, the first subassembly of rectifying, the first tension control subassembly, follow up cut the subassembly, the diaphragm unreels the subassembly, compound subassembly, rubberizing subassembly, detection component, the second tension control subassembly, the second subassembly of unreeling, the second subassembly of rectifying, the third tension control subassembly, the pay-off subassembly and the coiling subassembly, first material book unreels, first material book moves in proper order to the first subassembly of rectifying, the first tension control subassembly with follow up cut the subassembly, follow cut the subassembly and cut first material book and transfer to on the compound subassembly, the diaphragm follows the diaphragm unreels the subassembly unreel to the compound material book subassembly, and place the both ends material book of first material book in, the compound subassembly compounds the diaphragm to the both ends of first material book and forms compound two-layer diaphragm paper, the rubberizing subassembly only compounds the position gummed paper in compound two-layer diaphragm that the material book passes through after detection component and the second tension control subassembly, the coiling subassembly, the second material book, the second subassembly is attached to the second material book, the second winding subassembly of unreels in proper order through the second winding to the winding forms the deviation control subassembly with the winding, the winding subassembly, the winding to follow cut the coil to the compound correction subassembly.

2. The composite battery cell winding device with post-lamination adhesive according to claim 1, wherein the winding assembly includes a first sheet-feeding structure, a second sheet-feeding structure, a winding structure, a cutter structure, a tail adhesive-pasting structure and a blanking structure, the first sheet-feeding structure receives the composite material roll and transmits the composite material roll to the winding structure, the second sheet-feeding structure receives the second material roll and transmits the second material roll to the winding structure, the winding structure winds the composite material roll and the second material roll to form a battery cell, the cutter structure cuts the composite material roll, the tail adhesive-pasting structure pastes the tail adhesive to the surface of the battery cell, and the blanking structure feeds the battery cell which finishes tail adhesive-pasting and feeds adhesive paper to the winding structure.

3. The composite post-rubberized composite electrical core winding apparatus according to claim 2, wherein the first sheet feeding structure comprises a sheet feeding detection structure and a sheet feeding deviation correction structure, the sheet feeding detection structure detects a position of the composite material roll, and the sheet feeding deviation correction structure corrects the deviation of the composite material roll.

4. The composite post-rubberized composite electrical core winding apparatus according to claim 2 or 3, wherein the first unwinding assembly comprises an unwinding structure, an unwinding buffer structure, and a brush dust removal structure, the unwinding structure unwinds the first material roll, and the first material roll is transmitted to the brush dust removal structure through the unwinding buffer structure to clean and remove dust on the surface of the first material roll.

5. The composite post-glued composite cell winding apparatus of claim 4, wherein the first tension control assembly comprises a tension control structure, a tension sensor, and a roll length measuring structure, wherein the roll length measuring structure detects the position of the first roll, wherein the tension sensor senses the tension of the first roll, and wherein the tension control structure adjusts the tension of the first roll.

6. The composite cell winding apparatus of claim 5, wherein the cut-after-rubberizing assembly comprises a pinch deviation-correcting structure and a material roll cutter structure, the pinch deviation-correcting structure clamps the first material roll, the material roll cutter structure cuts the first material roll, and the pinch deviation-correcting structure moves the end of the cut first material roll to the composite assembly.

7. The composite post-rubberized composite cell winding apparatus of claim 6, wherein the composite assembly comprises a film combining structure, a preheating structure and a composite structure, the film combining structure compresses the separator film on both sides of the first material roll, the preheating structure preheats the separator film in advance, and the composite structure combines the first material roll and the separator film to form the composite material roll.

8. The composite post-rubberized composite cell winding apparatus according to claim 7, wherein the detection assembly comprises a first detection structure, a second detection structure, and a detection buffer structure, the first detection structure detects one side of the composite roll, the second detection structure detects the other side of the composite roll, and the detection buffer structure buffers the composite roll.

9. The composite post-rubberized composite electrical core winding apparatus of claim 4, wherein the feeding assembly comprises a feeding deviation rectifying structure, an embossing structure and a feeding structure, the feeding deviation rectifying structure rectifies the second material roll, the embossing structure embosses the second material roll with lines, and the feeding structure transfers the second material roll to the winding assembly.

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