CN218014617U - Dust collector and pole piece die cutting equipment - Google Patents

Abstract

The application relates to the technical field of battery pole piece dust removal, and provides a dust removal device and pole piece die cutting equipment. The dust removing device comprises a main body. The main part has air inlet channel, and air inlet channel's one end is used for communicating with high-pressure air source, and air inlet channel's the other end is opened in order to form the mouth of blowing. The aperture of the air blowing port is matched with the air pressure in the air inlet channel, so that the air flow flows out through the air blowing port to generate ultrasonic waves, and the flow path of the air flow passes through the product placing area to apply vibration to dust on the product, so that the dust is peeled. The main part has exhaust passage, and exhaust passage's one end is used for communicating with the negative pressure source, and exhaust passage's the other end is opened in order to form the gas vent, and the gas vent is used for extracting the dust. This application has improved dust removal effect to simple structure, low in manufacturing cost.

Description

Dust collector and pole piece die cutting equipment

Technical Field

The application relates to the technical field of battery pole piece dust removal, in particular to a dust removal device and pole piece die cutting equipment.

Background

In the production of products (e.g., pole pieces, membranes), the products are typically slit using a hardware knife or laser to form the product into a set width. Dust remains on the product after slitting, which affects the quality of the product. Under the condition that the product is a pole piece, dust can affect the performance of the battery.

The existing dust removal device generally adopts air draft dust removal or brush roller dust removal. Some dust firmly attached to the product cannot be peeled off by air draft dust removal. Although the dust stripping capability of the brush roller is slightly strong, the dust stripping capability is still not ideal, and particularly when the surface to be dedusted of the product is in a complex contour, the brush roller is difficult to uniformly cover the surface to be dedusted of the product, so that the dust removal effect is poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem that this application mainly solved provides a dust collector and pole piece die cutting equipment, improves the dust removal effect.

In order to solve the technical problem, the application adopts a technical scheme that: a dust removing device is provided, which includes a main body. The main part has inlet channel, and inlet channel's one end is used for communicating with high-pressure air source, and inlet channel's the other end opens in order to form the mouth of blowing. The aperture of the air blowing port is matched with the air pressure in the air inlet channel, so that the air flow flows out through the air blowing port to generate ultrasonic waves, and the flow path of the air flow passes through the product placing area to apply vibration to dust on the product, so that the dust is peeled. The main part has exhaust passage, and exhaust passage's one end is used for communicating with the negative pressure source, and exhaust passage's the other end opens in order to form the gas vent, and the gas vent is used for the extraction dust.

In some embodiments of the present application, the number of the blowing openings is multiple, and the air flows blown by the multiple blowing openings are oriented in different directions, so that the air flows can act on different parts of the product.

In some embodiments of the present application, the number of insufflation ports is at least three. One of the air blowing openings blows air toward the top surface of the product, one of the air blowing openings blows air toward the cut end surface of the product, and the other air blowing opening blows air toward the bottom surface of the product.

In some embodiments of the present application, each of the blowing openings is provided with an exhaust port on both sides of its axis.

In some embodiments of this application, the main part has the recess, and the mouth of blowing and gas vent all set up on the internal face of recess, and the product is placed the position and is located the recess.

In some embodiments of the present application, the recess has a pair of oppositely disposed side wall surfaces and a bottom wall surface connected between the pair of side wall surfaces, the recess being open on opposite sides of the bottom wall surface.

In some embodiments of the present application, a groove extends through the body in a first direction, the groove being for passage of the continuous strip of product in the first direction.

In some embodiments of the present application, the dust extraction device comprises at least two pairs of rollers. The rollers are rotatably disposed in the body, a gap is formed between each pair of rollers to grip a continuous strip-shaped product, and the two pairs of rollers are disposed at an interval in a first direction.

In some embodiments of the present application, the air pressure in the air intake passage is 0.4MPa to 0.9MPa, and the aperture of the air blowing port is 0.5mm to 1.5mm.

In some embodiments of the present application, the air pressure in the air intake passage is 0.7MPa, and the aperture of the air blowing port is 1mm.

For solving above-mentioned technical problem, this application still provides a pole piece cross cutting equipment, and pole piece cross cutting equipment is including cutting mechanism and dust collector. The slitting mechanism is used for slitting the pole piece belts to form narrower pole piece belts; the dust removal device is any one of the dust removal devices, and the dust removal device is used for removing dust of the pole piece belt after slitting.

The beneficial effect of this application is: be different from prior art, in this application, dust collector's main part has inlet channel, inlet channel's one end be used for with high pressurized air source intercommunication, inlet channel's the other end opens in order to form the mouth of blowing. The aperture of the air blowing port is matched with the air pressure in the air inlet channel, so that the air flow flows out through the air blowing port to generate ultrasonic waves. The flow path of the air stream passes through the product placement area to impart vibration to the dust on the product, thereby stripping the dust. The main part has exhaust passage, and exhaust passage's one end is used for communicating with the negative pressure source, and exhaust passage's the other end is opened in order to form the gas vent, and the gas vent is used for extracting the dust. In addition, the airflow can uniformly cover the surface of the product to be dedusted and is not influenced by the shape of the surface to be dedusted. The dust removal device has the advantages of good dust removal effect, simple structure and low manufacturing cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic representation of the product of the present application before slitting;

FIG. 2 is a schematic illustration of the product of the present application after slitting;

FIG. 3 is a front view of an embodiment of the dust removing apparatus of the present application

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a sectional view taken along line B-B of FIG. 3;

fig. 6 is a plan view of the dust removing device shown in fig. 3.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures associated with the present application are shown in the drawings, not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Please refer to fig. 1 and fig. 2. Fig. 1 is a schematic view of the product 1 of the present application before slitting, and fig. 2 is a schematic view of the product 1 of the present application after slitting.

In the process of manufacturing the products 1, the products 1 are cut by a hardware knife or a laser to form the products 1 into a set width. In this example, the product 1 is a pole piece tape. Hardware knife or laser cut product 1 along cutting line L, have the dust to remain on product 1 after cutting, cause the influence to the quality of product 1. The dust remains on the top surface 1a, bottom surface 1b, and notch end surface 1c of the product 1.

Please refer to fig. 3 to 5. Fig. 3 isbase:Sub>A front view of an embodiment of the dust removing apparatus of the present application, fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3, and fig. 5 isbase:Sub>A sectional view taken along line B-B of fig. 3.

In some embodiments, the dust extraction device includes a body 30. The main body 30 has an air inlet passage having one end for communicating with a high pressure air source and the other end opened to form an air blowing port. Illustratively, the main body 30 has 3 intake passages, that is, an intake passage 31a, an intake passage 31b, and an intake passage 31c. The joint 20 is provided on the main body 30 and communicates with the intake passages 31a, 31b, 31c. The joint 20 communicates with a gas delivery pipe of a high-pressure gas source so that the gas inlet passages 31a, 31b, 31c communicate with the high-pressure gas source. The shape and size of the intake passages 31a, 31b, 31c may be set according to actual needs. The other end of the intake passage 31a is open, forming an air blowing port 32a. The other end of the intake passage 31b is open, forming a blow port 32b. The other end of the air intake passage 31c is open, forming an air blowing port 32c. The diameters of the air blowing ports 32a, 32b, and 32c may be the same or different.

The aperture of the air blowing port is matched with the air pressure in the air inlet channel, so that the air flow flows out through the air blowing port to generate ultrasonic waves.

When the high pressure air passes through the outlet ports 32a, 32b, 32c, the flow rate of the air is high due to the difference between the internal and external pressures, and the high pressure air generates turbulence in a distance from the outlet ports 32a, 32b, 32c. Within this distance, high-frequency vibration is generated by the generation and disappearance of turbulence, and ultrasonic waves are generated.

If the size of the product 1 put in the dust removing device is large, the air blowing ports 32a, 32b, 32c need a large aperture to cover the product 1. At this time, the high-pressure air source providing higher air pressure can be replaced, and the air pressure in the air inlet channels 31a, 31b and 31c is increased, so that the air blowing ports 32a, 32b and 32c with larger apertures can also blow the air flow generating ultrasonic waves. If the pressure of the high-pressure air supply is low, the hole diameters of the blowing ports 32a, 32b, 32c can be reduced.

The shape of the air blowing opening is round, oval, rectangular or other irregular shapes.

The aperture specifically refers to the maximum radial dimension of the blowing port. When the blowing opening is circular, the diameter of the hole is the diameter of the blowing opening. When the blowing opening is rectangular, the diameter of the hole is the length of the diagonal line of the blowing opening.

In some embodiments, the air pressure in the air inlet channel is 0.4MPa to 0.9MPa, and the aperture of the air blowing opening is 0.5mm to 1.5mm. Specifically, in one embodiment, the air pressure of the air inlet channel is 0.4MPa, and the aperture of the air blowing port is 0.5mm; in one embodiment, the air pressure of the air inlet channel is 0.9MPa, and the aperture of the air blowing port is 1.5mm; in one embodiment, the air pressure of the air inlet channel is 0.7MPa, and the aperture of the air blowing port is 1mm; in one embodiment, the air pressure of the air inlet channel is 0.45MPa, and the aperture of the air blowing port is 1.45mm; in one embodiment, the air pressure of the air inlet channel is 0.82MPa, and the aperture of the air blowing opening is 0.6mm.

The main body 30 has an exhaust passage, one end of which is for communicating with a negative pressure source, and the other end of which is open to form an exhaust port for extracting dust. Illustratively, the body 30 has 3 exhaust passages, respectively 33a, 33b, 33c. The other end of the exhaust passage 33a is open, forming an exhaust port 34a. The other end of the exhaust passage 33b is open, forming an exhaust port 34b. The other end of the exhaust passage 33c is open, forming an exhaust port 34c. The dust removing device is provided with a dust removing pipe 10, one end of the dust removing pipe 10 is communicated with a negative pressure source, and the other end of the dust removing pipe 10 is connected with one end of the exhaust passages 33a, 33b and 33c. The dust removing duct 10 draws out air in the exhaust passages 33a, 33b, 33c so that the exhaust passages 33a, 33b, 33c are in a vacuum state. The exhaust ports 34a, 34b, 34c at the other ends of the exhaust passages 33a, 33b, 33c are under the action of atmospheric pressure to achieve the extraction of the air flow.

Wherein the flow path of the air flow passes through the product placement area to apply vibration to the dust on the product 1, thereby peeling off the dust. Specifically, the air flow blown out by the air blowing ports 32a, 32b, 32c generates ultrasonic waves, and the ultrasonic waves vibrate the dust on the product 1, so that the dust is detached from the product 1. The air flow forms a loop between the blowing openings 32a, 32b, 32c and the exhaust openings 34a, 34b, 34c, so that the dust separated from the product 1 enters the exhaust passages 33a, 33b, 33c through the exhaust openings 34a, 34b, 34c by the air flow.

In some embodiments, the number of the air blowing openings is multiple, and the air flow blown by the multiple air blowing openings is oriented in different directions, so that the air flow can act on different parts of the product 1. Specifically, the direction of the air flow blown out from the air blowing port can be determined according to the position of the actual dust. The number of the air blowing openings can also be determined according to the size of the product 1. If the distribution area of the dust on the product 1 is large, a plurality of air blowing openings can be arranged, the blown air flow directions are different, and the air flow coverage working area of the air blowing openings is increased.

In some embodiments, the number of insufflation ports is at least three. One air blowing opening blows air towards the top surface of the product, one air blowing opening blows air towards the cut end surface of the product, and one air blowing opening blows air towards the bottom surface of the product. Since dust is easily accumulated on the bottom surface 1b and the top surface 1a of the product 1, and the notch end surface 1c when the product 1 is cut. The air flow from the air outlet 32a is directed to the top surface 1a of the product 1, so that the dust on the top surface 1a of the product 1 can be removed. The air flow blown out from the air blowing port 32c is directed to the bottom surface 1b of the product 1, and the dust on the bottom surface 1b of the product 1 can be removed. The air flow blown out from the air blowing port 32b is opposite to the notch end face 1c of the product 1, and the dust on the notch end face 1c of the product 1 can be removed.

Referring to fig. 6, fig. 6 is a top view of the dust removing device shown in fig. 3.

In some embodiments, each of the blowholes is provided with an exhaust port on both sides of its axis. Illustratively, one exhaust port 34a is provided to the left of the outlet 32a, and one exhaust port 34a is provided to the right of the outlet 32a. Similarly, one exhaust port 34c is provided to the left of the outlet 32c, and one exhaust port 34c is provided to the right of the outlet 32c. As shown in fig. 3, one exhaust port 34b is provided on the left side of the outlet 32b, and one exhaust port 34b is provided on the right side of the outlet 32b. Since the air flow blown out from the air outlets 32a, 32b, and 32c can generate ultrasonic waves, the ultrasonic waves can cause the product 1 to shake, and dust on the product 1 may spread around. Two sides of each air blowing opening 32a, 32b and 32c are respectively provided with an air outlet 34a, 34b and 34c, so that dust diffused to the periphery can be completely extracted by the air outlets 34a, 34b and 34c under the drive of air flow, and the environment is prevented from being polluted.

In some embodiments, the body 30 has a recess 40, and both the air blowing port and the air exhaust port are provided on an inner wall surface of the recess 40, and the product placement region is located in the recess 40. Specifically, the inner walls of the grooves 40 are provided with air blowing ports and air exhaust ports. The blow port and the exhaust port cooperate to allow the air flow to flow within the recess 40 and form a circuit. The dust on the product 1 is stripped by the airflow blown out from the air blowing opening and is positioned in the groove 40, so that the dust is prevented from being blown down to other places by the airflow to pollute the environment. The product placement area in the groove 40 is within the action range of ultrasonic waves formed by air flow blown out of the air blowing opening, and dust on the product 1 is peeled off under the action of the ultrasonic waves.

Please refer to fig. 4 again. In some embodiments, the recess 40 has a pair of oppositely disposed side wall surfaces 41 and a bottom wall surface 42 connected between the pair of side wall surfaces 41, the recess 40 being open on opposite sides of the bottom wall surface 42. Specifically, the upper side wall surface 41 of the recess 40 is provided with the blow port 32a, and the lower side wall surface 41 of the recess 40 is provided with the blow port 32c. The bottom wall surface 42 is provided with an air blowing port 32b. In this embodiment, the dust is distributed on the top surface 1a, the bottom surface 1b and the notch end surface 1c of the product 1. In actual operation, the cut end face 1c of the product 1 faces the bottom wall face 42 of the recess 40. The top surface 1a of the product 1 faces the upper side wall surface 41 of the recess 40. The bottom surface 1b of the product 1 faces the lower side wall surface 41 of the recess 40. The dust on the top surface 1a and the bottom surface 1b is removed by the air currents blown out from the air outlets 32a, 32c on the side wall surface 41 of the recess 40, and the air outlet 32b on the bottom wall surface 42 removes the dust on the notch end surface 1c. The grooves 40 are open on the opposite side of the bottom wall surface 42, so that the products 1 can be placed in the grooves 40 from the open positions, and after dust is removed, the products 1 are taken away from the open positions, and the loading and unloading operation is very simple. The number of the blowing ports and the exhaust ports on the side wall surface 41 and the bottom wall surface 42 of the recess 40 can be set as required. If the number of the air blowing openings and the air exhaust openings on the inner wall surface of the groove 40 is increased according to the size of the product 1, the dust removing range of the dust removing device is expanded, so that the flow path of the air flow can cover the whole product 1, and dust on the product 1 can be removed.

In some embodiments, a groove 40 extends through the body 30 in the first direction D1, the groove 40 being configured to allow the continuous strip of product 1 to pass along the first direction D1. For example, the dust removing device needs to act on the belt-like product 1 to remove dust on the surface thereof. The groove 40 extends through the body 30 in the first direction D1, so that the strip-shaped product 1 can continuously pass through the groove 40 from the first direction D1, and the strip-shaped product 1 is always located in the groove 40 during the movement. In this way, the products 1 do not need to be continuously put in and taken out, and the processing efficiency of the strip-shaped products 1 is greatly improved.

In some embodiments, the dust extraction device includes at least two pairs of rollers 50. The rollers 50 are rotatably provided to the main body 30, and a gap is formed between each pair of rollers 50 to nip the continuous belt-shaped product 1. The two pairs of rollers 50 are disposed at an interval in the first direction D1.

The cut end face 1c of the product 1 is opposed to the air blowing port 32b with the support of the roller 50.

Illustratively, two pairs of rollers 50 are provided on the body 30. The two pairs of rollers 50 rotate in the same direction and are located on both sides of the groove 40. The roller 50 can be rotated by a motor so that the strip-shaped product 1 located in the gap between the counter roller 50 is moved continuously through the product placement zone in the recess 40. But may be driven by another drive member to drive the roller 50. Alternatively, the roller 50 does not actively drive the product 1 to move, but rotates with the product 1.

The number and the position of the rollers 50 can be set according to the requirements in actual production, so that the product 1 can be placed in the groove 40 more quickly and conveniently, and the production efficiency is improved. It is of course possible to add a controller to control the time during which the roller 50 rotates. For example, after the product 1 is moved to the product placement area within the recess 40, the roller 50 stops rotating. After the product 1 reaches the preset time in the product placement area, the controller controls the roller 50 to rotate again, and the product 1 is moved to the next station. And in the preset time that the product 1 stays in the product placing area, the dust can be completely peeled from the product 1 by the airflow blown out of the air blowing opening.

This application still provides a pole piece cross cutting equipment, and pole piece cross cutting equipment is including cutting mechanism and dust collector. The slitting mechanism is used to slit the pole piece strips to form narrower pole piece strips. The dust collector of any one of the above embodiments is used for removing dust from the pole piece strips after slitting.

The above description is only an embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A dust removing device characterized by comprising:

a main body, a plurality of first and second fixing parts,

the main body is provided with an air inlet channel, one end of the air inlet channel is used for being communicated with a high-pressure air source, the other end of the air inlet channel is opened to form an air blowing opening, the aperture of the air blowing opening is matched with the air pressure in the air inlet channel, so that air flow flows out of the air blowing opening to generate ultrasonic waves, and the flow path of the air flow passes through a product placing area to apply vibration to dust on a product, so that the dust is peeled off;

the main part has exhaust passage, exhaust passage's one end is used for communicating with the negative pressure source, exhaust passage's the other end opens in order to form the gas vent, the gas vent is used for the extraction the dust.

2. The dust removing apparatus according to claim 1,

the number of the air blowing openings is multiple, and the air flow blown out by the air blowing openings faces different directions, so that the air flow can act on different parts of the product.

3. The dust removing apparatus according to claim 2,

the number of the air blowing openings is at least three, the air flow blown out by one air blowing opening faces the top surface of the product, the air flow blown out by one air blowing opening faces the cut end surface of the product, and the air flow blown out by one air blowing opening faces the bottom surface of the product.

4. The dust removing apparatus according to claim 1,

and the air outlets are arranged on two sides of the axis of each air blowing opening.

5. The dust removing apparatus according to any one of claims 1 to 4,

the main body is provided with a groove, the air blowing port and the air exhaust port are both arranged on the inner wall surface of the groove, and the product placing area is located in the groove.

6. The dust removing apparatus according to claim 5,

the recess has a pair of oppositely disposed side wall surfaces and a bottom wall surface connected between the pair of side wall surfaces, the recess being open on opposite sides of the bottom wall surface.

7. The dust removing apparatus according to claim 5,

the groove penetrates through the main body along a first direction, and the groove is used for allowing the continuous strip-shaped product to pass along the first direction.

8. The dust removing device according to claim 7, comprising:

at least two pairs of rollers rotatably disposed in said body, each pair of said rollers defining a gap therebetween for gripping said continuous strip of said product, two pairs of said rollers being spaced apart in said first direction.

9. The dust removing apparatus according to claim 1,

the air pressure in the air inlet channel is 0.4MPa to 0.9MPa, and the aperture of the air blowing opening is 0.5mm to 1.5mm.

10. A pole piece die cutting equipment, comprising:

a slitting mechanism for slitting the pole piece tape to form a narrower pole piece tape;

the dust removal device of any one of claims 1 to 9, wherein the dust removal device is used for removing dust from the slit pole piece strips.

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