CN219357223U - Pole piece dust collector - Google Patents

Abstract

The utility model discloses a pole piece dust removal device which is used for removing dust from pole piece coil stock with pole lugs, and comprises a dust removal box, an ion air knife, a first dust collection assembly, a second dust collection assembly and a guide assembly, wherein a penetrating channel which penetrates through the pole piece coil stock from top to bottom in sequence is arranged in the dust removal box, the two ion air knives are symmetrically arranged at left and right opposite sides of the opposite upper side end of the penetrating channel and are used for removing static electricity on the pole piece coil stock and blowing dust on the pole piece coil stock, the first dust collection assembly is arranged at left and right opposite sides of the opposite lower side end of the penetrating channel and is used for guiding and limiting the penetrating direction of the pole piece coil stock and sucking dust blown from the pole piece coil stock, the second dust collection assembly is arranged at the bottom of the dust removal box and is used for sucking dust falling into the dust removal box, and the guide assembly is arranged at the side end of the penetrating channel and is used for guiding and protecting the pole lugs of the pole piece coil stock.

Description

Pole piece dust collector

Technical Field

The utility model relates to battery production equipment, in particular to a pole piece dust removal device for removing dust and static electricity on a pole piece.

Background

The lithium battery is widely applied to energy storage power supply systems of hydraulic power, firepower, wind power, solar power stations and the like due to the excellent performance, and a plurality of fields of electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment, aerospace and the like. The lithium battery cell is generally composed of a positive plate, a negative plate, a diaphragm and electrolyte, a semi-finished product of the positive plate and the negative plate in the battery production process is generally in a coiled material state, lugs are uniformly distributed at the side ends of the coiled material of the electrode plate, and the cell is manufactured through a coiling or lamination process. In the process of forming the tab on the pole piece and winding the pole piece after forming the tab by using technologies such as die cutting or laser die cutting to form a pole piece coil stock, as the coating of the pole piece is a composite material formed by particles, impurity foreign matters such as powder, metal scraps and the like are inevitably adhered to the surface and side end surfaces of the coil stock in the forming process, and if the impurity foreign matters cannot be effectively removed, the impurity foreign matters are brought into the battery to form micro short circuit, so that the quality of the battery is affected, and potential safety hazards exist in severe cases, therefore, the pole piece coil stock needs to be dedusted.

At present, brush dust removal is adopted, but the pole piece is easily damaged in the dust removal mode of contact, and the protruding part of pole piece coil stock edge corresponding to the utmost point ear is easily brushed by the brush, and sunken part can't effectively brush again, influences the dust removal effect to, the brush long-term operation can adhere to more dust, causes secondary pollution to the pole piece coil stock. In addition, because the thickness of the tab is thinner, especially the negative electrode tab, in the process of spreading the coiled pole piece coil material for dust removal, the protruding part of the tab is easy to slightly swing or turn over, and the pole pieces around the tab are driven to deform, so that the dust removal and the subsequent slicing effects are affected.

Therefore, a pole piece dust removing device with simple structure, good dust removing effect and effective protection of the pole lugs is needed to overcome the problems.

Disclosure of Invention

The utility model aims to provide a pole piece dust removal device which has a simple structure and a good dust removal effect and can effectively protect pole lugs.

In order to achieve the above-mentioned purpose, the utility model discloses a pole piece dust removal device for removing dust from pole piece coil stock having pole lugs, the pole piece dust removal device comprises a dust removal box, an ion air knife, a first dust collection assembly, a second dust collection assembly and a guide assembly, wherein the ion air knife, the first dust collection assembly, the second dust collection assembly and the guide assembly are arranged in the dust removal box, a penetrating channel penetrating up and down for the pole piece coil stock to pass through is arranged in the dust removal box, the two ion air knives are symmetrically arranged at left and right opposite sides of opposite upper side ends of the penetrating channel and are used for eliminating static electricity on the pole piece coil stock and blowing dust on the pole piece coil stock, the first dust collection assembly is arranged at left and right opposite sides of opposite lower side ends of the penetrating channel and is used for guiding and limiting the penetrating direction of the pole piece coil stock and sucking dust blown off from the pole piece coil stock, the second dust collection assembly is arranged at the bottom of the dust removal box and is used for sucking dust falling into the dust removal box, and the guide assembly is arranged at the side of the penetrating channel and is used for protecting the pole piece coil stock.

Preferably, the dust removing box comprises a bottom plate, a left side plate, a right side plate, a front side plate, a rear side plate and a top plate, wherein the bottom plate, the left side plate, the front side plate, the right side plate, the rear side plate and the top plate are mutually spliced to form a containing space, an upper through hole and a lower through hole are correspondingly arranged at the central positions of the top plate and the bottom plate, and the upper through hole is communicated with the lower through hole to form the through channel.

Preferably, a positioning plate which is detachably arranged at the upper through hole is arranged on the top plate, and a guide opening corresponding to the width dimension of the pole piece coil stock is formed in the positioning plate.

Preferably, the pole piece dust removal device further comprises a mounting seat arranged in the dust removal box and located at the bottom side end of the penetrating channel, the two ion air knives are obliquely arranged on the left and right opposite sides of the opposite top side end of the mounting seat along the longitudinal direction of the dust removal box respectively, and the first dust collection assembly is arranged on the left and right opposite sides of the opposite bottom side end of the mounting seat along the longitudinal direction of the dust removal box and located between the two ion air knives.

Preferably, the first dust collection assembly comprises two dust collection blocks which are symmetrically arranged at the left side and the right side of the bottom side end of the mounting seat, dust collection cavities are respectively arranged in the two dust collection blocks, dust collection holes are respectively arranged at the opposite ends of the two dust collection blocks, air receiving ports are also arranged at the side ends of the two dust collection blocks, the dust collection holes and the air receiving ports in the dust collection blocks are respectively communicated with the dust collection cavities, and the air receiving ports are also connected with an external air source device.

Preferably, the number of the air receiving ports is two, the two air receiving ports are correspondingly arranged at the front side end and the rear side end of the dust collection block, the number of the dust collection holes is multiple, the dust collection holes are uniformly distributed on the side end surfaces of the dust collection block opposite to the pole piece coil stock at equal intervals, and the shape of the dust collection holes is round or square.

Preferably, the second dust collection component comprises a collecting tank and a dust extraction pipe, the collecting tank is convexly arranged at the opening of the bottom of the dust removal box and is in a funnel shape, and the dust extraction pipe is arranged at the dust falling opening of the collecting tank and is used for extracting dust in the dust removal box to the outside of the dust removal box.

Preferably, the guide assembly comprises two guide plates which are symmetrically arranged at the left side and the right side of the opposite rear side ends of the through channel and are detachably arranged, the guide plates comprise connecting parts arranged on the dust removal box, penetrating parts arranged in the through channel and guide parts suspended outside the dust removal box, and a Y-shaped guide channel is formed between the two guide plates.

Preferably, through holes are uniformly distributed on the penetrating part of the guide piece.

Preferably, the two ion air knives are adjustably arranged in the dust removing box at an inclined angle, the distance between the two ion air knives is adjustably arranged, and the first dust collecting component is adjustably arranged in the dust removing box at a position.

Compared with the prior art, the pole piece dust removal device disclosed by the utility model has the advantages that the penetrating channel penetrating up and down is arranged in the dust removal box, the guide components are arranged at the side ends of the penetrating channel, the two ion air knives are symmetrically arranged at the left and right opposite sides of the opposite upper side end of the penetrating channel, the first dust collection component is arranged at the left and right opposite sides of the opposite lower side end of the penetrating channel, and the second dust collection component is arranged at the bottom of the dust removal box, so that when pole piece coil materials are pulled forward to sequentially penetrate through the penetrating channel, the two ion air knives can not only blow dust attached to the pole piece coil materials from the upper side, but also can eliminate static electricity on the pole piece coil materials, and the first dust collection component can suck the dust blown down by the ion air knives to the outside of the dust removal box.

Drawings

Fig. 1 is a plan view of the pole piece roll of the present utility model after being unwound.

Fig. 2 is a perspective view of the pole piece dust removing device of the present utility model.

Fig. 3 is a side view of the pole piece dust collector of the present utility model.

Fig. 4 is a top view of the pole piece dust removing device of the present utility model.

Fig. 5 is a perspective view of a hidden part of a case of the pole piece dust removing device of the present utility model.

Fig. 6 is a top view of a hidden portion of a housing of the pole piece dust collector of the present utility model.

Fig. 7 is a side view of a hidden portion of a housing of the pole piece dust collector of the present utility model.

Fig. 8 is a cross-sectional view taken along A-A in fig. 4.

Fig. 9 is a cross-sectional view taken along the direction B-B in fig. 6.

Fig. 10 is a perspective view of a guide plate of the present utility model.

Detailed Description

In order to describe the technical content, the constructional features, the achieved objects and effects of the present utility model in detail, the following description is made in connection with the embodiments and the accompanying drawings.

Referring to fig. 1 to 10, the present utility model provides a pole piece dust removal device 100, which is mainly used for removing dust and static electricity from a pole piece coil 200 having a tab 202, wherein the pole piece coil 200 is mainly used for producing a battery core of a lithium battery, and is particularly suitable for the battery core produced by a lamination process. Wherein, each tab 202 is equidistantly protruded at the edge of the side end of the body 201 of the pole piece coil 200. In summary, the pole piece dust removal device 100 disclosed in the preferred embodiment of the present utility model includes a dust removal box 10 and an ion air knife 20, a first dust collection assembly 30, a second dust collection assembly 40 and a guiding assembly 50 arranged in the dust removal box 10. The dust removing box 10 is provided with a penetrating channel 10a (see fig. 8) which penetrates through the pole piece coil stock 200 from top to bottom, and two ion air knives 20 are symmetrically arranged on the left and right opposite sides of the opposite upper side ends of the penetrating channel 10a and are used for removing static electricity on the pole piece coil stock 200 and blowing dust on the pole piece coil stock 200. Wherein, the specific working pressure of the ion air knife 20 is 0.4-0.7 Mpa, and the maximum wind speed is 60 m/s; the first dust suction members 30 are disposed at left and right opposite sides of opposite lower side ends of the passing channel 10a for guiding and defining the passing direction of the passing pole piece roll 200 and sucking dust blown off from the pole piece roll 200. The second dust collection assembly 40 is disposed at the bottom of the dust box 10 for sucking dust falling into the dust box 10. The guide assembly 50 is disposed at a side end of the passing channel 10a for guiding and protecting the tab 202 of the passing pole piece roll 200.

Referring to fig. 2 to 9, the dust box 10 includes a bottom plate 11, a left side plate 12, a right side plate 14, a front side plate 13, a rear side plate 15, and a top plate 16, where the bottom plate 11, the left side plate 12, the front side plate 13, the right side plate 14, the rear side plate 15, and the top plate 16 are spliced together to define a receiving space, and an upper through hole 161 (shown by a dotted line in fig. 4) and a lower through hole 111 (shown by a dotted line in fig. 8) are correspondingly disposed at the central positions of the top plate 16 and the bottom plate 11, and the upper through hole 161 is communicated with the lower through hole 111 to form a through channel 10a. The body 201 and the tab 202 of the pole piece coil 200 which is unwound and stretched after unreeling enter the dust removing box 10 from the lower through hole 111, and then vertically upwards pass through the upper through hole 161 along the direction of the penetrating channel 10a to leave the dust removing box 10, so that dust removal and static electricity removal operations are realized in the penetrating process.

In some embodiments, in order to implement dust removal and static electricity removal operations on pole piece coil materials 200 with different widths, a positioning plate 17 which is detachably arranged at the upper through hole 161 is arranged on the top plate 16, and a guiding opening 171 corresponding to the width dimension of the pole piece coil materials 200 is arranged on the positioning plate 17, and of course, the guiding opening 171 can also correspond to the thickness dimension of the pole piece coil materials 200, so that the positioning plate 17 matching with the width and thickness of the pole piece coil materials 200 can be quickly replaced according to actual needs, and the dust removal efficiency is effectively improved.

Referring to fig. 5 to 9, the pole piece dust removing device 100 of the present utility model further includes a mounting seat 60 disposed in the dust removing box 10 and located at opposite bottom ends of the through channel 10a, and two ion air knives 20 are respectively mounted on opposite left and right opposite sides of opposite top ends of the mounting seat 60 in an inclined manner along the longitudinal direction of the dust removing box 10, so as to blow air obliquely downwards from two sides, and blow dust on the body 201 and the tab 202 of the pole piece coil 200 more effectively. The ion air knives 20 are provided with air inlets so as to be connected with an external air source device, the distance between the two ion air knives 20 is adjustably arranged in the dust removal box 10, and particularly, the distance between the two ion air knives 20 and the positioning seat 60 can be changed by adjusting the positioning positions of the two ion air knives, so that the ion air knives are suitable for carrying out air blowing dust removal and static electricity removal operation on pole piece coiled materials 200 with different thicknesses. Of course, the two ion air knives 20 are also arranged on the positioning seat 60 in an angle adjustable manner, so that the air outlet direction is changed by adjusting the inclination angle on the positioning seat 60.

Specifically, the mounting base 60 is disposed near the rear side plate 15, and includes a base 61 and two support bases 62 disposed at left and right opposite sides of the base 61 in a spaced apart manner, and the two ion fans 20 are rotatably mounted between the two support bases 62 and the left and right opposite sides of the front side plate 13, so as to facilitate the adjustment of the blowing angle. And the two supporting seats 62 are also slidably disposed on the base 61 in the left-right direction so as to adjust the interval therebetween.

Referring to fig. 5 to 9, the first dust collection assembly 30 is disposed at left and right opposite sides of the bottom end of the mounting base 60 in the longitudinal direction of the dust collection box 10, specifically, at the opposite center of the base 61, so as to be located between the two ionic wind knives 20 on the mounting base 60 and be adjustably disposed in the dust collection box 10. Specifically, the first dust collection assembly 30 includes two symmetrically arranged dust collection blocks 31, which are arranged on left and right opposite sides of a bottom side end of the mounting seat 60 along a longitudinal direction of the dust collection box 10, dust collection cavities are respectively arranged in the two dust collection blocks 31, dust collection holes 311 are respectively arranged at opposite ends of the two dust collection blocks 31, and air inlets 32 are respectively arranged at the side ends of the two dust collection blocks, wherein the dust collection holes 311 and the air inlets 32 are respectively communicated with the dust collection cavities, and the air inlets 32 are also connected with an external air source device, so that dust is sucked into the dust collection cavities through the dust collection holes 311, and then the dust in the dust collection cavities is sucked to the outside of the dust collection box 10. The distance between the two dust collection blocks 31 is smaller than the distance between the two ion air knives 20, so that the pole piece coil stock 200 passing through the through passage 10a can be further guided and limited to prevent the offset although the pole piece coil stock 200 is not always in direct contact with the pole piece coil stock 200.

Specifically, because the dust collection block 32 has a certain length, in order to improve dust collection efficiency and effect, the front and rear side ends of the dust collection block 32 are uniformly distributed on the air ports 32, so that dust collection is performed from two sides, and the dust collection effect is better. The number of the dust suction holes 311 may be plural, and the specific shape thereof may be circular or square.

Referring to fig. 3 to 7, the second dust collection assembly 40 includes a collecting tank 41 and a dust suction pipe 42, the collecting tank 41 is convexly disposed at an opening 112 at the bottom of the dust removal box 10 and is funnel-shaped, so that the dust falling onto the bottom plate 16 of the dust removal box 10 slides into the collecting tank 41 and slides toward the dust falling port at the lowest position thereof, so that the dust suction pipe 42 disposed at the dust falling port of the collecting tank 41 pumps the dust falling into the dust removal box 10 to the outside of the dust removal box 10, thereby effectively maintaining the cleanliness in the whole dust removal box 10. Wherein, in order to effectively improve the dust extraction effect, the number of the collecting tank 41 and the dust extraction pipes 42 is 2, and the collecting tanks and the dust extraction pipes are arranged in a one-to-one correspondence manner.

Referring to fig. 5 and 8 to 10, the guide assembly 50 is detachably mounted at the edge of the guide opening 171 of the positioning plate 17 to correspond to the position of the tab 202, so as to be suitable for guiding and protecting the tabs 202 with different sizes. Specifically, the guiding assembly 50 includes two guiding plates 51, where the two guiding plates 51 are symmetrically disposed on the left and right opposite sides of the opposite rear end of the through channel 10a, and are detachably disposed, so as to guide and protect the tab 202 of the through pole piece coil 200 from both sides, and prevent the tab from turning over and deflecting. Specifically, the guide plate 51 includes a connection portion 511, a penetrating portion 512 and a guiding portion 513, the connection portion 511 is detachably disposed on the positioning plate 17, the penetrating portion 512 is located in the penetrating channel 10a, the guiding portion 512 is suspended outside the dust removing box 10, and a Y-shaped guiding channel is formed between the two guide plates 51. Through holes 5121 are uniformly distributed on the penetrating portion 512, so that a good guiding protection effect can be achieved, and dust on the tab 202 cannot be sucked. The connecting portion 511, the penetrating portion 512 and the guiding portion 513 may be integrally formed, or may be three independent components sequentially connected to form the guiding sheet 51. In addition, the positioning plate 17 is further provided with a plurality of positioning holes 172, and the connecting portion 511 is provided with a plurality of mounting holes 5111, so that the guide plate 51 can be selectively fixed in the positioning holes 171 at corresponding positions by screws passing through the mounting holes 5111, thereby simply and conveniently realizing assembly and disassembly, and being suitable for guiding the tabs 202 of the pole pieces 200 with different widths.

The concrete work is as follows: when the pole piece coil stock 200 is pulled and stretched to discharge, the pole piece coil stock 200 enters the dust removing box 10 from the lower through hole 111, and then vertically upwards passes through the upper through hole 161 along the direction of the penetrating channel 10a to leave the dust removing box 10, in the process, the two ion air knives 20 can not only blow off attached dust from the body 201 and the pole lugs 202 of the pole piece coil stock 200 from the upper side, but also can eliminate static electricity on the pole piece coil stock 200, the first dust collection assembly 30 sucks the dust blown off by the ion air knives 20 to the outside of the dust removing box 10 at the lower side, and in order to effectively ensure the dust removing effect, the dust falling into the dust removing box 10 is sucked to the outside of the dust removing box 10 through the second dust collection assembly 40 arranged at the bottom side end, so that the dust in the whole dust removing box 10 is effectively removed through the cooperation of blowing and double suction, and the dust removing effect is effectively improved.

Compared with the prior art, in the pole piece dust removal device 100 disclosed by the utility model, the dust removal box 10 is internally provided with the penetrating channel 10a penetrating up and down, the side ends of the penetrating channel 10a are provided with the guide components 50, the two ion air knives 20 are symmetrically arranged on the left and right opposite sides of the opposite upper side ends of the penetrating channel 10a, the first dust collection component 30 is arranged on the left and right opposite sides of the opposite lower side ends of the penetrating channel 10a, the second dust collection component 40 is arranged at the bottom of the dust removal box 10, when the pole piece coil 200 is pulled to penetrate through the penetrating channel 10a, the two ion air knives 20 not only can blow away dust attached to the pole piece coil 200 from the upper side, but also can eliminate static electricity on the pole piece coil 200, and the first dust collection component 30 can suck the dust blown off by the ion air knives 20 to the outside of the dust removal box 10 at the lower side, and in order to effectively ensure the dust removal effect, and the second dust collection component 40 arranged at the bottom side ends is also used for blowing dust falling into the dust collection box 10 to the dust removal box 10 to the lower than or equal to the two dust collection boxes with the granularity of the dust removal box 10 and the residual dust removal efficiency of the dust removal box is more than or equal to 9. The dust removal efficiency is greater than or equal to 9; and in the dust removal process, the lug 202 at the edge of the pole piece coil stock 200 is guided and limited through the guide assembly 50, so that the removal of dust attached to the lug 202 is not affected, the lug 202 is effectively prevented from deflecting or overturning, the flatness of the unfolded pole piece coil stock is effectively protected, the accuracy of subsequent cutting is further improved, the whole device is simple in structure, the automatic line production of dust removal of the pole piece coil stock 200 with the lug 202 is effectively realized, and the automatic line production device is suitable for the requirement of an automatic production line.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims (10)

1. The utility model provides a pole piece dust collector for remove dust to pole piece coil stock that has the utmost point ear, its characterized in that, pole piece dust collector include the dust removal case with arrange ion air knife, first dust absorption subassembly, second dust absorption subassembly and the direction subassembly in the dust removal case, be equipped with in the dust removal case and link up from top to bottom for the passing of pole piece coil stock put the passageway, two the ion air knife be the symmetry arrange in the left and right opposite sides of the relative upside end of putting the passageway, be used for eliminating static on the pole piece coil stock, and blow off dust on the pole piece coil stock, first dust absorption subassembly arrange in the left and right opposite sides of the relative downside end of putting the passageway, be used for leading to the direction of putting of the pole piece coil stock is prescribing a limit to, and absorbs the dust that drops from on the pole piece coil stock, the second dust absorption subassembly is arranged in the bottom of dust removal case for the dust that falls into in the dust removal case, the direction subassembly is arranged in the side end department of putting the passageway for the pole piece coil stock is used for carrying out the direction ear to the pole piece.

2. The pole piece dust collector of claim 1, wherein the dust collector comprises a bottom plate, a left side plate, a right side plate, a front side plate, a rear side plate and a top plate, the bottom plate, the left side plate, the front side plate, the right side plate, the rear side plate and the top plate are mutually spliced to form a containing space, an upper through hole and a lower through hole are correspondingly arranged at the central positions of the top plate and the bottom plate, and the upper through hole is communicated with the lower through hole to form the through channel.

3. The pole piece dust removal device of claim 2, wherein a positioning plate which is detachably arranged at the upper through hole is arranged on the top plate, and a guide opening corresponding to the width dimension of the pole piece coil stock is formed in the positioning plate.

4. The pole piece dust collector of claim 1, further comprising a mounting base disposed in the dust collection box and located at a bottom side end of the through passage, wherein the two ion air knives are respectively obliquely arranged on left and right opposite sides of an opposite top side end of the mounting base along a longitudinal direction of the dust collection box, and the first dust collection assembly is disposed on left and right opposite sides of an opposite bottom side end of the mounting base along the longitudinal direction of the dust collection box and located between the two ion air knives.

5. The pole piece dust collector of claim 4, wherein the first dust collection assembly comprises two dust collection blocks symmetrically arranged at left and right opposite sides of the bottom end of the mounting seat, dust collection cavities are arranged in the two dust collection blocks, dust collection holes are arranged at opposite ends of the two dust collection blocks, air receiving ports are further arranged at the side ends of the two dust collection blocks, the dust collection holes and the air receiving ports in the dust collection blocks are respectively communicated with the dust collection cavities, and the air receiving ports are also connected with an external air source device.

6. The pole piece dust collector of claim 5, wherein the number of the air receiving ports is two, the two air receiving ports are correspondingly arranged at the front side end and the rear side end of the dust collection block, the number of the dust collection holes is plural, the dust collection holes are equidistantly arranged on the side end surface of the dust collection block opposite to the pole piece coil stock, and the dust collection holes are round or square.

7. The pole piece dust removal device of claim 1, wherein the second dust collection assembly comprises a collecting tank and a dust extraction pipe, the collecting tank is convexly arranged at an opening at the bottom of the dust removal box and is funnel-shaped, and the dust extraction pipe is arranged at a dust falling opening of the collecting tank and is used for extracting dust in the dust removal box to the outside of the dust removal box.

8. The pole piece dust collector of claim 1, wherein the guide assembly comprises two guide pieces symmetrically arranged on left and right opposite sides of opposite rear side ends of the through passage and detachably arranged, the guide pieces comprise a connecting part arranged on the dust collector, a penetrating part arranged in the through passage and a guide part suspended outside the dust collector, and a Y-shaped guide passage is formed between the two guide pieces.

9. The pole piece dust removal device of claim 8, wherein through holes are uniformly distributed on the penetrating part of the guide piece.

10. The pole piece dust collector of claim 1, wherein the two ion air knives are adjustably disposed at an oblique angle in the dust collection box and the spacing between the two ion air knives is adjustably disposed, the first dust collection assembly being adjustably disposed at a position in the dust collection box.