阅读说明：本技术 一种锂电铜箔抗翘的烘烤装置 (Baking equipment that lithium electricity copper foil warp resistance ) 是由 尹卫华 于 2021-09-02 设计创作，主要内容包括：本发明提供了一种锂电铜箔抗翘的烘烤装置,包括烘烤箱,所述烘烤箱的内壁表面固定有隔板,所述隔板的顶端设有处于所述烘烤箱内部的预处理装置、底端设有处于所述烘烤箱内部的展平装置；所述预处理装置包括嵌入于所述隔板壳体上的多个第一引风扇,以及设于所述第一引风扇的上方的第一张紧辊；所述展平装置包括设于所述隔板底端的第二张紧辊,所述第二张紧辊的顶端设有第一烘烤组件、底端设有第二烘烤组件,所述第二烘烤组件的底端设有张紧组件。本发明能够对铜箔进行均匀烘烤的同时,对铜箔进行展平,进而提高铜箔成品的效果。(The invention provides a baking device for resisting warping of a lithium electrolytic copper foil, which comprises a baking box, wherein a partition plate is fixed on the surface of the inner wall of the baking box, a pretreatment device in the baking box is arranged at the top end of the partition plate, and a flattening device in the baking box is arranged at the bottom end of the partition plate; the pretreatment device comprises a plurality of first guide fans embedded in the partition board shell and a first tensioning roller arranged above the first guide fans; the flattening device is including locating the second tensioning roller of baffle bottom, the top of second tensioning roller is equipped with first toasting the subassembly, the bottom is equipped with the second and toasts the subassembly, the bottom that the subassembly was toasted to the second is equipped with the tensioning subassembly. The invention can evenly bake the copper foil and flatten the copper foil at the same time, thereby improving the effect of the finished copper foil.)

1. The baking device for resisting warping of the lithium electrolytic copper foil comprises a baking box (10) and is characterized in that a partition plate (20) is fixed on the surface of the inner wall of the baking box (10), a pretreatment device (30) located inside the baking box (10) is arranged at the top end of the partition plate (20), and a flattening device (40) located inside the baking box (10) is arranged at the bottom end of the partition plate (20);

the pretreatment device (30) comprises a plurality of first guide fans (31) embedded in the shell of the partition board (20), and a first tensioning roller (32) which is arranged above the first guide fans (31) and is rotatably connected with the interior of the baking box (10);

the flattening device (40) comprises a second tensioning roller (41) which is arranged at the bottom end of the partition plate (20) and fixed on the inner wall of the baking box (10), a first baking component (42) is arranged at the top end of the second tensioning roller (41), a second baking component (43) is arranged at the bottom end of the second tensioning roller, and a tensioning component (44) is arranged at the bottom end of the second baking component (43);

first toast subassembly (42) and second toast the structure of subassembly (43) the same, first toast subassembly (42) including locating two inside gyration power unit (421) of toasting case (10), with W shape support frame (422) that the execution end of gyration power unit (421) is connected, and be fixed in two heating copper pipe (423) that just equidistance set up between W shape support frame (422).

2. The baking device of the lithium electrolytic copper foil warping resistance, as claimed in claim 1, wherein the rotary power mechanism (421) includes a first rotating shaft (4211) rotatably connected to an inner wall of the baking box (10) through a bearing, and a connecting rod (4212) rotatably connected to the first rotating shaft (4211), and one end of the connecting rod (4212) far away from the first rotating shaft (4211) is rotatably connected to the W-shaped support frame (422) through a second rotating shaft (4213).

3. The baking device of the lithium electro-copper foil warping resistance as claimed in claim 1, wherein the tensioning assembly (44) comprises a plurality of cylinders (441) which are fixed at the bottom end of the inner wall of the baking box (10) and are arranged at equal intervals, a supporting frame (442) fixed on the upper surface of the cylinders (441), and a third tensioning roller (443) is fixed on the upper surface of the supporting frame (442).

4. The baking device for preventing the lithium-ion battery copper foil from warping according to claim 1, wherein a through hole (21) for a copper foil to pass through is formed in one end of the partition plate (20), water removing strips (22) symmetrically arranged with the through hole (21) as a central axis are fixed on the upper surface of one end of the partition plate (20), and brush strips (23) are fixed on the surfaces of the two sides, close to each other, of the water removing strips (22).

5. The baking device of lithium electro-copper foil warping resistance of claim 1, wherein the inside of the baking oven (10) is sequentially separated into a pretreatment cavity (11) and a baking cavity (12) from top to bottom through a partition plate (20), one end of the baking oven (10) is provided with a feeding hole (13), and the other end of the baking oven is provided with a discharging hole (14).

6. The baking device of lithium electro-copper foil warping resistance according to claim 5, characterized in that bearing seats (15) are symmetrically arranged and fixed on the outer surface of one end of the baking box (10) close to the discharge hole (14), and drum type flattening rollers (16) are rotatably connected between the two bearing seats (15) through rotating shafts.

7. The baking device for resisting warping of lithium electro-copper foil according to claim 6, wherein a second induced fan (17) is arranged at one end of the pretreatment cavity (11), and the second induced fan (17) is fixed on the inner wall surface of the baking box (10).

8. The baking device of lithium electro-copper foil warp resistance of claim 7, characterized in that, the one end external surface of baking oven (10) keeping away from second induced fan (17) is fixed with heat recovery case (50), heat recovery case (50) are close to be fixed with two ventilation pipes (51) from top to bottom in proper order on the one end inner wall of baking oven (10), two be equipped with third induced fan (52) between ventilation pipe (51).

9. The baking device for resisting warping of lithium electro-copper foil according to claim 1, wherein the first tensioning rollers (32) are arranged in a triangular array.

10. The baking device for resisting warping of lithium electro-copper foil according to claim 1, wherein a heat insulation layer (18) is fixed inside the baking box (10), and the heat insulation layer (18) is made of pearl wool.

Technical Field

The invention mainly relates to the technical field of lithium electrolytic copper foil, in particular to a baking device for resisting warping of lithium electrolytic copper foil.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses non-hydrolytic solution, and the electrolytic copper foil is an important material of the lithium ion battery.

According to the drying device provided in patent document CN201822018511.2 in the production process of copper foil for lithium battery, the drying device comprises a pretreatment box and a drying box, wherein the drying box is arranged at the right end of the pretreatment box, a first inlet is formed in the side wall of the left end of the pretreatment box, a first outlet which is symmetrically distributed with the first inlet is formed in the side wall of the right end of the pretreatment box, a second inlet which corresponds to the first outlet is formed in the side wall of the left end of the drying box, a second outlet which is symmetrically distributed with the second inlet is formed in the side wall of the right end of the drying box, first guide rollers which are symmetrically distributed are arranged on the left side and the right side in the pretreatment box, a plurality of first tensioning rollers which are uniformly distributed are arranged between the left first guide roller and the right guide roller, and the first tensioning rollers are positioned below the first guide rollers, this drying device has improved the drying efficiency and the stoving effect of copper foil through carrying out the preliminary treatment to the moisture on copper foil surface.

However, the foregoing baking apparatus still has drawbacks, for example, although the foregoing baking apparatus improves the drying efficiency and drying effect of the copper foil by pretreating the moisture on the surface of the copper foil, the foregoing baking apparatus often causes the copper foil to warp and fold due to insufficient uniform heating in the process of conveying the copper foil, which affects the quality of the finished copper foil product.

Disclosure of Invention

The invention mainly provides a baking device for preventing a lithium electrolytic copper foil from warping, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the baking device comprises a baking box, wherein a partition plate is fixed on the surface of the inner wall of the baking box, a pretreatment device in the baking box is arranged at the top end of the partition plate, and a flattening device in the baking box is arranged at the bottom end of the partition plate;

the pretreatment device comprises a plurality of first induced fans embedded in the partition board shell and a first tensioning roller which is arranged above the first induced fans and is rotatably connected with the interior of the baking oven;

the flattening device comprises a second tensioning roller which is arranged at the bottom end of the partition plate and fixed on the inner wall of the baking box, a first baking assembly is arranged at the top end of the second tensioning roller, a second baking assembly is arranged at the bottom end of the second tensioning roller, and a tensioning assembly is arranged at the bottom end of the second baking assembly;

first toast the subassembly and the second toasts the structure of subassembly the same, first toast the subassembly including locating two gyration power units of toasting incasement portion, with the W shape support frame that gyration power unit's execution end is connected, and be fixed in two the heating copper pipe that just equidistance set up between the W shape support frame.

Further, gyration power unit include through the bearing with bake out the first rotation axis that incasement wall rotated and connects, and with the connecting rod that first rotation axis rotated and connects, the one end that first rotation axis was kept away from to the connecting rod pass through the second rotation axis with the W shape support frame rotates and connects, drives W shape support frame and carries out upper and lower gyration to the copper foil is pressed close to the heating copper pipe periodicity that drives on the W shape support frame.

Further, the tensioning subassembly is including being fixed in bake out a plurality of cylinders that incasement wall bottom and equidistance set up, be fixed in the support frame of cylinder upper surface, the upper surface of support frame is fixed with third tensioning roller to make the copper foil through the promotion of third tensioning roller and further the tensioning exhibition is flat.

Further, the one end of baffle is equipped with the through-hole that supplies the copper foil to pass, the one end upper surface mounting of baffle has the strip that goes water that uses the through-hole to set up as the center pin symmetry, two one side fixed surface that the strip that goes water is close to each other has the brush strip for the baffle supplies the copper foil to alternate through the through-hole on it, and near the strip that goes water of through-hole passes through the scraping between brush strip and the copper foil, thereby adsorbs the moisture on the copper foil.

Further, toast the inside of case and from top to bottom separate for preliminary treatment chamber and toast the chamber in proper order through the baffle, the one end of toasting the case is equipped with the feed inlet, the other end is equipped with the discharge gate, because the preliminary treatment chamber is in the top of toasting the chamber for the preliminary treatment chamber can use the waste heat of toasting the chamber to preheat energy saving consumption.

Further, the one end external surface that toasts the case and is close to the discharge gate is fixed with the bearing frame that the symmetry set up, two rotate through the pivot between the bearing frame and be connected with drum-type nip roll, further flatten to the both ends exhibition of copper foil through drum-type nip roll to prevent that the copper foil from taking place the fold.

Furthermore, one end of the pretreatment cavity is provided with a second induced air fan, the second induced air fan is fixed on the surface of the inner wall of the baking box, and hot air in the air channel is guided by the second induced air fan to flow into the heat recovery box quickly for hot air circulation.

Further, the one end external fixation that the second induced fan was kept away from to the case that toasts has the case that reheats, the case that reheats is close to toast and from top to bottom is fixed with two ventilation pipes in proper order on the one end inner wall of case, two be equipped with the third draught fan between the ventilation pipe, the ventilation pipe through the case bottom that heats reenters and toasts the case and heat for hot-air cyclic utilization to the consumption of the reduction energy.

Furthermore, a plurality of first tensioning rollers are arranged in a triangular array, and the first tensioning rollers are arranged in the triangular array, so that the copper foil is tensioned by forming corners through the first tensioning rollers.

Further, the inside of baking the case is fixed with the insulating layer, the insulating layer is cotton for the pearl and makes to bake the case and pass through insulating layer on it, reduce inside hot air and run off, the energy saving.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the copper foil can be flattened while being uniformly baked, so that the effect of a copper foil finished product is improved, and the method specifically comprises the following steps: the copper foil passes first tensioning roller according to the preface and carries out the pretension, pass a plurality of second tensioning rollers according to the preface again and carry out the tensioning once more, drive W shape support frame through gyration power unit carries out the upper and lower gyration, so that two W shape support frames drive the upper and lower both ends that the copper foil is pressed close to respectively to the heating copper pipe, in order to carry out even toasting to the copper foil, in addition, it rises to drive the support frame through the cylinder, promote the third tensioning roller through the support frame and press on the copper foil, at this moment, the copper foil is through the heating of heating copper pipe and easy deformation, and the copper foil passes through the tensioning of second tensioning roller, so that the copper foil passes through the promotion of third tensioning roller and further tensioning exhibition is flat.

The inner part of the baking box is divided into a pretreatment cavity and a baking cavity by a partition plate, the copper foil is preheated by the baking box through the pretreatment cavity, the copper foil is heated and baked through elements in the baking cavity, and the pretreatment cavity can use the waste heat of the baking cavity to preheat due to the fact that the pretreatment cavity is located above the baking cavity, so that energy consumption is saved.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an isometric view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an exploded view of the present invention;

FIG. 5 is a schematic view of the structure of the flattening apparatus of the present invention;

FIG. 6 is a side view of the present invention;

FIG. 7 is an enlarged view of the structure of region A in FIG. 3;

fig. 8 is an enlarged view of the structure of region B in fig. 3.

In the figure: 10. a baking oven; 11. a pretreatment chamber; 12. a baking chamber; 13. a feed inlet; 14. a discharge port; 15. a bearing seat; 16. a drum type flattening roll; 17. a second induced fan; 18. a thermal insulation layer; 20. a partition plate; 21. a through hole; 22. removing the water strips; 23. a brush bar; 30. a pretreatment device; 31. a first induced fan; 32. a first tension roller; 40. a flattening device; 41. a second tension roller; 42. a first baking assembly; 421. a rotary power mechanism; 4211. a first rotating shaft; 4212. a connecting rod; 4213. a second rotation shaft; 422. a W-shaped support frame; 423. heating the copper pipe; 43. a second baking assembly; 44. a tension assembly; 441. a cylinder; 442. a support frame; 443. a third tension roller; 50. and (4) a heat recovery box.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, referring to fig. 1 to 8, a baking device for preventing a lithium electro-copper foil from warping includes a baking oven 10, a partition plate 20 is fixed on an inner wall surface of the baking oven 10, a pretreatment device 30 located inside the baking oven 10 is arranged at a top end of the partition plate 20, and a flattening device 40 located inside the baking oven 10 is arranged at a bottom end of the partition plate 20;

the pretreatment device 30 includes a plurality of first guide fans 31 embedded in the housing of the partition 20, and a first tension roller 32 disposed above the first guide fans 31 and rotatably connected to the inside of the oven 10;

the flattening device 40 comprises a second tensioning roller 41 which is arranged at the bottom end of the partition plate 20 and fixed on the inner wall of the baking box 10, a first baking component 42 is arranged at the top end of the second tensioning roller 41, a second baking component 43 is arranged at the bottom end of the second tensioning roller, and a tensioning component 44 is arranged at the bottom end of the second baking component 43;

the first baking assembly 42 and the second baking assembly 43 have the same structure, the first baking assembly 42 includes two rotary power mechanisms 421 disposed inside the baking oven 10, W-shaped supporting frames 422 connected to the executing ends of the rotary power mechanisms 421, and heating copper pipes 423 fixed between the two W-shaped supporting frames 422 and disposed at equal intervals;

it should be noted that, in this embodiment, after the copper foil enters the baking oven 10 through the feeding port 13, the worker guides the copper foil to sequentially pass through the first tensioning roller 32 for pretension, the tensioned copper foil passes through the partition 20 into the baking chamber 12, sequentially passes through the plurality of second tensioning rollers 41, and is again tensioned by the second tensioning rollers 41, the tensioned copper foil passes through the discharging port 14 of the baking oven 10 through the guiding of the traction device, in this process, because the W-shaped supporting frame 422 in the first baking assembly 42 is connected with the execution end of the rotary power mechanism 421, the W-shaped supporting frame 422 is driven by the rotary power mechanism 421 to rotate up and down, and because the first baking assembly 42 and the second baking assembly 43 have the same structure, the W-shaped supporting frame 422 in the first baking assembly 42 and the second baking assembly 43 drives the heating copper tube 423 to be close to the upper end and the lower end of the copper foil respectively, in addition, the air cylinder 441 drives the support frame 442 to ascend, the support frame 442 pushes the third tensioning roller 443 to press on the copper foil, at the moment, the copper foil is easy to deform through heating the heating copper pipe 423, and the copper foil is tensioned through the second tensioning roller 41, so that the copper foil is further tensioned and flattened through pushing of the third tensioning roller 443;

further, make toasting case 10 preheat the copper foil through preliminary treatment chamber 11, heat the copper foil through toasting the interior component of chamber 12 and toast, and because preliminary treatment chamber 11 is in the top of toasting chamber 12, make preliminary treatment chamber 11 can use the waste heat of toasting chamber 12 to preheat energy saving consumption.

Specifically, please refer to fig. 3, 4 and 7 again, the rotation power mechanism 421 includes a first rotation shaft 4211 rotatably connected to the inner wall of the oven 10 through a bearing, and a link 4212 rotatably connected to the first rotation shaft 4211, wherein one end of the link 4212 away from the first rotation shaft 4211 is rotatably connected to the W-shaped support frame 422 through a second rotation shaft 4213;

it should be noted that, in this embodiment, when the first rotating shaft 4211 is driven to rotate by the motor connected thereto, the first rotating shaft 4211 drives the upper connecting rod 4212 thereof to rotate, and since the connecting rod 4212 is rotatably connected to the W-shaped support frame 422 through the second rotating shaft 4213, the W-shaped support frame 422 is driven to rotate up and down, so as to drive the heating copper tube 423 on the W-shaped support frame 422 to periodically approach the copper foil.

Specifically, referring to fig. 3 and 4, the tensioning assembly 44 includes a plurality of cylinders 441 equidistantly disposed and fixed to the bottom end of the inner wall of the baking oven 10, a supporting frame 442 fixed to the upper surface of the cylinders 441, and a third tensioning roller 443 fixed to the upper surface of the supporting frame 442;

it should be noted that, in this embodiment, after the air cylinder 441 drives the supporting frame 442 to rise, the supporting frame 442 pushes the third tensioning roller 443 to press on the copper foil, at this time, the copper foil is easily deformed by heating the heating copper tube 423, and the copper foil is tensioned by the second tensioning roller 41, so that the copper foil is further tensioned and flattened by the pushing of the third tensioning roller 443.

Specifically, please refer to fig. 2 and 4 again, a through hole 21 for a copper foil to pass through is arranged at one end of the partition plate 20, dewatering strips 22 symmetrically arranged with the through hole 21 as a central axis are fixed on the upper surface of one end of the partition plate 20, brush strips 23 are fixed on the surfaces of the two sides of the two dewatering strips 22 close to each other, the inside of the baking oven 10 is sequentially divided into a pretreatment cavity 11 and a baking cavity 12 from top to bottom by the partition plate 20, a feeding port 13 is arranged at one end of the baking oven 10, a discharging port 14 is arranged at the other end of the baking oven 10, drum type bearing seats 15 symmetrically arranged are fixed on the outer surface of one end of the baking oven 10 close to the discharging port 14, and a flattening roller 16 is rotatably connected between the two bearing seats 15 through a rotating shaft;

in the present embodiment, the separator 20 is made to pass through the through hole 21 on it for the copper foil to penetrate, and the dewatering strips 22 near the through hole 21 are scraped by the brush strips 23 and the copper foil, so as to adsorb the moisture on the copper foil;

furthermore, the copper foil is preheated by the baking box 10 through the pretreatment cavity 11, the copper foil is heated and baked by elements in the baking cavity 12, and the pretreatment cavity 11 can be preheated by using the waste heat of the baking cavity 12 due to the fact that the pretreatment cavity 11 is located above the baking cavity 12, so that energy consumption is saved;

the baking oven 10 is used for inserting the copper foil through the feeding port 13 and the discharging port 14, and guiding the copper foil to extend into the baking oven 10 and extend out of the baking oven 10;

further, when the copper foil is extended from the discharge port 14 of the oven 10, the copper foil is further flattened toward both ends of the copper foil by the drum flattening rollers 16, thereby preventing the copper foil from being wrinkled.

Specifically, please refer to fig. 2 and 6 again, a second induced fan 17 is disposed at one end of the pretreatment chamber 11, the second induced fan 17 is fixed on the inner wall surface of the baking oven 10, a heat recovery box 50 is fixed on the outer surface of one end of the baking oven 10 away from the second induced fan 17, two ventilation pipes 51 are sequentially fixed on the inner wall of one end of the heat recovery box 50 close to the baking oven 10 from top to bottom, a third induced fan 52 is disposed between the two ventilation pipes 51, the first tensioning rollers 32 are arranged in a triangular array, a heat insulation layer 18 is fixed inside the baking oven 10, and the heat insulation layer 18 is made of pearl wool;

it should be noted that, in this embodiment, the hot air in the pretreatment chamber 11 is blocked by the copper foil tensioned on the first tensioning roller 32, so that an air channel is formed in the pretreatment chamber 11, and the hot air in the air channel is guided by the second induced fan 17 to rapidly flow into the heat recovery box 50 for hot air circulation;

furthermore, after the heat recovery box 50 guides the hot air to flow into the heat recovery box through the ventilation pipe 51, the hot air is guided to flow into the bottom end of the heat recovery box 50 through the third induced draft fan 52 and reenters the baking box 10 through the ventilation pipe 51 at the bottom end of the heat recovery box 50 for heating, so that the hot air is recycled, and the energy consumption is reduced;

further, after the copper foil is tensioned by the plurality of first tensioning rollers 32, the first tensioning rollers 32 are arranged in a triangular array, so that the copper foil is tensioned by the first tensioning rollers 32 to form corners;

furthermore, the baking box 10 can reduce the loss of the hot air inside and save energy through the upper heat insulation layer 18.

The specific operation mode of the invention is as follows:

when the baking device is used for baking the copper foil, after the copper foil enters the baking box 10 through the feeding hole 13, a worker guides the copper foil to sequentially pass through the first tensioning roller 32 for pretension, the tensioned copper foil passes through the partition plate 20 to enter the baking cavity 12, sequentially passes through the plurality of second tensioning rollers 41 and is tensioned again through the second tensioning rollers 41, the tensioned copper foil passes through the discharging hole 14 of the baking box 10 through the guiding of the traction device, in the process, the W-shaped support frame 422 in the first baking assembly 42 is connected with the execution end of the rotary power mechanism 421, so that the W-shaped support frame 422 is driven by the rotary power mechanism 421 to rotate up and down, and the W-shaped support frames 422 in the first baking assembly 42 and the second baking assembly 43 are identical in structure, so that the heating copper pipes 423 are driven by the W-shaped support frames 422 in the first baking assembly 42 and the second baking assembly 43 to be respectively close to the upper end and the lower end of the copper foil, to bake the copper foil evenly;

the supporting frame 442 is driven to ascend through the air cylinder 441, the supporting frame 442 pushes the third tensioning roller 443 to press on the copper foil, at the moment, the copper foil is easy to deform through heating of the heating copper pipe 423, and the copper foil is tensioned through the second tensioning roller 41, so that the copper foil is further tensioned and flattened through pushing of the third tensioning roller 443.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.