Air knife dust removal mechanism

Abstract

The utility model provides an air knife dust removal mechanism which comprises a supporting seat, a first air knife, a second air knife and a dust removal mechanism, a channel is formed in the middle of the supporting seat, a first cavity structure and a second cavity structure are movably arranged on the supporting seat, and a variable area is formed between the first cavity structure and the second cavity structure to control the size of the channel; and air knife dust extraction units are arranged in the first cavity structure and the second cavity structure so as to remove dust from the pole piece penetrating through the variable area. According to the utility model, the position and the output angle of the air knife can be adjusted, uniform airflow air walls can be output to slightly impact and vibrate the surface of the pole piece, dust is blown and sucked away, and the two surfaces of the pole piece are simultaneously dedusted, so that the dedusting effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to an air knife dust removal mechanism. Background Art

[0002] Pole sheet dust removal is an important step in the production process of lithium batteries, especially in the manufacturing process of positive and negative electrodes. Pole sheet surfaces are prone to dust, which may come from cutting, processing, operation and other links. If not removed in time, it will affect the subsequent use of the pole sheet, or even scratch the pole sheet, thus affecting the performance and quality of the battery.

[0003] Traditional non-contact air blowing dust removal applications have the following defects:

[0004] 1. Dust particles fly around, seriously affecting the health of on-site operators;

[0005] 2. The dust removal position and angle are inconvenient to adjust, maintenance is inconvenient, and the service life is short. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a wind knife dust removal mechanism, which can adjust the wind knife position and output angle, and can output a uniform airflow wall to slightly impact and vibrate the surface of the pole piece, blow up the dust, and suck the dust away, thereby removing dust from both sides of the pole piece at the same time to achieve a dust removal effect.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] A wind knife dust removal mechanism, comprising:

[0009] A support seat, wherein a channel is opened in the middle of the support seat, a first cavity structure and a second cavity structure are movably arranged on the support seat, and a variable area is formed between the first cavity structure and the second cavity structure to control the size of the channel;

[0010] Air knife dust extraction units are provided in both the first cavity structure and the second cavity structure to remove dust from the pole pieces passing through the variable area.

[0011] According to a preferred embodiment, the side walls of the first cavity structure and the second cavity structure opposite to each other both have openings to ensure that the air knife dust extraction unit removes dust from the pole pieces passing through the variable area;

[0012] The air knife dust extraction unit of the first cavity structure is arranged opposite to the air knife dust extraction unit of the second cavity structure.

[0013] According to a preferred embodiment, the wind knife dust extraction unit includes a wind knife structure and a dust extraction structure which are arranged in sequence up and down, and the two wind knife structures are rotatably connected to the inner walls of the first cavity structure and the second cavity structure respectively, and the two dust extraction structures are respectively arranged on the inner walls of the first cavity structure and the second cavity structure.

[0014] According to a preferred embodiment, the negative pressure pipe of the dust extraction structure extends through and outside the first cavity structure or the second cavity structure.

[0015] According to a preferred embodiment, a first horizontal moving structure is provided on a side of the first cavity structure away from the second cavity structure;

[0016] A second horizontal moving structure is provided on a side of the second cavity structure away from the first cavity structure;

[0017] The moving end of the first horizontal moving structure is connected to the first cavity structure, and the moving end of the second horizontal moving structure is connected to the second cavity structure. The first horizontal moving structure and the second horizontal moving structure are used to adjust the width of the variable area.

[0018] According to a preferred embodiment, it also includes a first displacement limiting structure and a second displacement limiting structure both arranged on the support seat, the first cavity structure is connected to the first displacement limiting structure, and the second cavity structure is connected to the second displacement limiting structure.

[0019] According to a preferred embodiment, the first displacement limit structure and the second displacement limit structure both include a limit rod and a limit slider, the two limit rods both have an adjustable lateral range, the two limit sliders are respectively fixed to the first cavity structure and the second cavity structure, and each limit slider can move along the corresponding limit rod within the range of the lateral range.

[0020] According to a preferred embodiment, the top of the opening of the first cavity structure and the top of the opening of the second cavity structure are both provided with an inclined notch;

[0021] The opening bottom of the first cavity structure and the opening bottom of the second cavity structure are both provided with a discharge notch.

[0022] According to a preferred embodiment, a rotating shaft is horizontally fixed to the inner walls of the first cavity structure and the second cavity structure, and the movable end of each rotating shaft is connected to the corresponding wind knife structure.

[0023] According to a preferred embodiment, the wind knife structure and the dust extraction structure are both strip structures, the wind knife structure is horizontally provided with a plurality of air outlets, and the dust extraction structure is horizontally provided with a plurality of negative pressure holes.

[0024] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0025] The utility model can adjust the horizontal position of the wind knife by adjusting the positions of the first cavity structure and the second cavity structure, and can independently adjust the output angles of the wind knife units of the first cavity structure and the second cavity structure, output a uniform airflow wind wall to slightly impact and vibrate the surface of the pole piece, blow up the dust, and suck the dust away, thereby simultaneously removing dust from both sides of the pole piece to achieve a dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of the air knife dust removal mechanism provided in an embodiment of the utility model;

[0028] Figure 2 A schematic side view of the structure of the air knife dust removal mechanism provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the main structure of the air knife dust removal mechanism provided in an embodiment of the utility model;

[0030] Figure 4 for Figure 3 AA cross-sectional structure diagram in;

[0031] Figure 5 A schematic diagram of the structure of a support base provided in an embodiment of the utility model;

[0032] Figure 6 A schematic diagram of a partial three-dimensional structure of an air knife dust removal mechanism provided in an embodiment of the utility model;

[0033] Figure 7 A partial top view structural schematic diagram of the air knife dust removal mechanism provided in an embodiment of the utility model.

[0034] Icons: 1. Support seat; 2. Channel; 3. First cavity structure; 4. Second cavity structure; 5. Wind knife dust extraction unit; 51. Wind knife structure; 52. Dust extraction structure; 6. Negative pressure duct; 7. First horizontal moving structure; 8. Second horizontal moving structure; 9. Limit rod; 10. Slider; 11. Inclined notch; 12. Rotating axis. DETAILED DESCRIPTION

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] Example

[0039] Please refer to Figures 1 to 7 A wind knife dust removal mechanism comprises: a support base 1, a channel 2 is opened in the middle of the support base 1, a first cavity structure 3 and a second cavity structure 4 are movably arranged on the support base 1, a variable area is formed between the first cavity structure 3 and the second cavity structure 4 to control the size of the channel 2; wind knife dust extraction units 5 are arranged in the first cavity structure 3 and the second cavity structure 4 to remove dust from the pole piece passing through the variable area.

[0040] Preferably, the side walls opposite to the first cavity structure 3 and the second cavity structure 4 both have openings to ensure that the wind knife dust extraction unit 5 removes dust from the pole pieces passing through the variable area; the wind knife dust extraction unit 5 of the first cavity structure 3 and the wind knife dust extraction unit 5 of the second cavity structure 4 are arranged opposite to each other.

[0041] Preferably, the wind knife dust extraction unit 5 includes a wind knife structure 51 and a dust extraction structure 52 which are arranged in sequence up and down, the two wind knife structures 51 are rotatably connected to the inner wall of the first cavity structure 3 and the inner wall of the second cavity structure 4, respectively, and the two dust extraction structures 52 are respectively arranged on the inner wall of the first cavity structure 3 and the inner wall of the second cavity structure 4.

[0042] Preferably, the negative pressure pipe 6 of the dust extraction structure 52 extends through and to the outside of the first cavity structure 3 or the second cavity structure 4 .

[0043] Preferably, a first horizontal moving structure 7 is provided on the side of the first cavity structure 3 away from the second cavity structure 4; a second horizontal moving structure 8 is provided on the side of the second cavity structure 4 away from the first cavity structure 3; the moving end of the first horizontal moving structure 7 is connected to the first cavity structure 3, so the moving end of the second horizontal moving structure 8 is connected to the second cavity structure 4, and the first horizontal moving structure 7 and the second horizontal moving structure 8 are used to adjust the width of the variable area.

[0044] Preferably, it also includes a first displacement limiting structure and a second displacement limiting structure both arranged on the support seat 1, the first cavity structure 3 is connected to the first displacement limiting structure, and the second cavity structure 4 is connected to the second displacement limiting structure.

[0045] Preferably, the first displacement limit structure and the second displacement limit structure both include a limit rod 9 and a limit slider 10, the two limit rods 9 both have an adjustable lateral range, the two limit sliders 10 are respectively fixed on the first cavity structure 3 and the second cavity structure 4, and each limit slider 10 can move along the corresponding limit rod 9 within the lateral range.

[0046] Preferably, the top of the opening of the first cavity structure 3 and the top of the opening of the second cavity structure 4 are both provided with an inclined notch 11;

[0047] The opening bottoms of the first cavity structure 3 and the opening bottoms of the second cavity structure 4 are both provided with discharge notches.

[0048] Preferably, a rotating shaft 12 is horizontally fixed to the inner walls of the first cavity structure 3 and the second cavity structure 4 , and a movable end of each rotating shaft 12 is connected to a corresponding wind knife structure 51 .

[0049] Preferably, the wind knife structure 51 and the dust extraction structure 52 are both strip structures, the wind knife structure 51 is horizontally provided with a plurality of air outlets, and the dust extraction structure 52 is horizontally provided with a plurality of negative pressure holes.

[0050] The working principle of this utility model:

[0051] In this embodiment, the first cavity structure 3 and the second cavity structure 4 are hexahedral structures, and the opposite end faces of the first cavity structure 3 and the second cavity structure 4 both have openings. Therefore, the air knife dust extraction unit 5 in the first cavity structure 3 can remove dust from one end face of the pole piece passing through its opening, and the air knife dust extraction unit 5 in the second cavity structure 4 can remove dust from the other end face of the pole piece passing through its opening. In this embodiment, the area between the inclined notch 11 of the first cavity structure 3 and the inclined notch 11 of the second cavity structure 4 can be used for the pole piece to pass through. After the pole piece is dust-removed by the air knife dust extraction units 5 on both sides, it is output through the area between the discharge notch of the first cavity structure 3 and the discharge notch of the second cavity structure 4. An entrance with a wide top and a narrow bottom is formed between the two inclined notches 11, which is convenient for the input of the pole piece and has a guiding effect. The discharge notch is not marked in the attached figure. The two discharge notches are set corresponding to the two inclined notches 11. The two discharge notches can be set inclined or not inclined, which is convenient for transportation and has a guiding effect.

[0052] The wind knife dust extraction unit 5 includes a wind knife structure 51 and a dust extraction structure 52 arranged up and down. The wind knife structure 51 is horizontally arranged in the first cavity structure 3 or the second cavity structure 4 through the rotating shaft 12. The rotating shaft 12 can be rotated to drive the wind knife structure 51 to flip, so that the air outlet direction of the wind knife structure 51 changes, thereby adjusting the wind direction of the wind wall. The air outlet of the wind knife structure 51 of the first cavity structure 3 and the air outlet of the wind knife structure 51 of the second cavity structure 4 are relatively arranged. In this embodiment, they are all arranged tilted downward, which is conducive to blowing or vibrating the dust particles on the pole piece. The dust particles fall directly to the dust extraction structure 52 below due to the wind force or gravity. The dust extraction structure 52 can be connected to an external negative pressure air source. The dust extraction structure 52 is provided with a plurality of evenly distributed negative pressure holes at one end facing the pole piece to adsorb dust particles. In order to improve the movement accuracy of the first cavity structure 3 and the second cavity structure 4, a slide rail can be set on the support seat 1, and the first cavity structure 3 and the second cavity structure 4 are respectively matched with the corresponding slide rails through the slider 10, which is not shown by the reference numerals in the drawings. In order to adjust the distance between the first cavity structure 3 and the second cavity structure 4, it can be regulated by the first horizontal moving structure 7 and the second horizontal moving structure 8. The first horizontal moving structure 7 and the second horizontal moving structure 8 can both be cylinders. The first cavity structure 3 of the first horizontal moving structure 7 moves horizontally back and forth left and right, and the second cavity structure 4 of the second horizontal moving structure 8 moves horizontally back and forth left and right. The wind knife structure 51 has a number of evenly distributed air outlets to ensure uniform air output. The first cavity structure 3 and the second cavity structure 4 are connected to the outside world except for the opening, the inclined notch 11, and the discharge notch. The other end faces are sealing surfaces to prevent dust particles from flying.

[0053] At this time, the negative pressure pipe 6 completely absorbs the dust particles. The air suction port of the negative pressure pipe 6 is connected by multiple small-diameter pipes, and the pipe diameter becomes larger after passing through the multiple pipes. In order to achieve the dust suction wind force standard in a wide area, it is designed according to the principle of proximity and multi-level wind force control principle;

[0054] The wind knife structure 51 outputs a uniform airflow wall to slightly impact and vibrate the surface of the pole piece and blow up the dust; at this time, the negative pressure pipe 6 sucks away the dust in the first cavity structure 3 and the second cavity structure 4; thereby, the two sides of the pole piece are dusted simultaneously to achieve the dust removal effect; compared with the currently common dust removal mechanisms, it has a simple structure, low noise, less than 75 decibels; energy saving, and the gas consumption is 70% less than that of conventional drilled tube air curtains; the airflow is balanced, and the air compression ratio can reach 40:1; the first cavity structure 3 and the second cavity structure 4 are made of aluminum or stainless steel; small size, easy to install, and maintenance-free; it has the characteristics of high efficiency and high stability, and the noise can be further reduced by reducing the distance between the first cavity structure 3 and the second cavity structure 4.

[0055] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A wind knife dust removal mechanism, characterized in that: include: A support seat, wherein a channel is opened in the middle of the support seat, a first cavity structure and a second cavity structure are movably arranged on the support seat, and a variable area is formed between the first cavity structure and the second cavity structure to control the size of the channel; Air knife dust extraction units are provided in both the first cavity structure and the second cavity structure to remove dust from the pole pieces passing through the variable area.

2. The air knife dust removal mechanism according to claim 1, characterized in that: The side walls of the first cavity structure and the second cavity structure opposite to each other both have openings to ensure that the air knife dust extraction unit removes dust from the pole pieces passing through the variable area; The air knife dust extraction unit of the first cavity structure is arranged opposite to the air knife dust extraction unit of the second cavity structure.

3. The air knife dust removal mechanism according to claim 2, characterized in that: The wind knife dust extraction unit includes a wind knife structure and a dust extraction structure which are arranged in sequence up and down. The two wind knife structures are rotatably connected to the inner walls of the first cavity structure and the second cavity structure respectively, and the two dust extraction structures are respectively arranged on the inner walls of the first cavity structure and the second cavity structure.

4. The air knife dust removal mechanism according to claim 3 is characterized in that: The negative pressure pipe of the dust extraction structure extends through and outside the first cavity structure or the second cavity structure.

5. The air knife dust removal mechanism according to claim 2, characterized in that: A first horizontal moving structure is disposed on a side of the first cavity structure away from the second cavity structure; A second horizontal moving structure is provided on a side of the second cavity structure away from the first cavity structure; The moving end of the first horizontal moving structure is connected to the first cavity structure, and the moving end of the second horizontal moving structure is connected to the second cavity structure. The first horizontal moving structure and the second horizontal moving structure are used to adjust the width of the variable area.

6. The air knife dust removal mechanism according to claim 5, characterized in that: It also includes a first displacement limiting structure and a second displacement limiting structure both arranged on the support seat, the first cavity structure is connected to the first displacement limiting structure, and the second cavity structure is connected to the second displacement limiting structure.

7. The air knife dust removal mechanism according to claim 6, characterized in that: The first displacement limit structure and the second displacement limit structure both include a limit rod and a limit slider, the two limit rods both have an adjustable lateral range, the two limit sliders are respectively fixed to the first cavity structure and the second cavity structure, and each limit slider can move along the corresponding limit rod within the lateral range.

8. The air knife dust removal mechanism according to claim 2, characterized in that: The top of the opening of the first cavity structure and the top of the opening of the second cavity structure are both provided with an inclined notch; The opening bottom of the first cavity structure and the opening bottom of the second cavity structure are both provided with a discharge notch.

9. The air knife dust removal mechanism according to claim 3, characterized in that: A rotating shaft is horizontally fixed to the inner walls of the first cavity structure and the second cavity structure, and a movable end of each rotating shaft is connected to the corresponding wind knife structure.

10. The air knife dust removal mechanism according to claim 3, characterized in that: The wind knife structure and the dust extraction structure are both strip structures. The wind knife structure is horizontally provided with a plurality of air outlets, and the dust extraction structure is horizontally provided with a plurality of negative pressure holes.

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