A dust removal mechanism for laser etching machine

Abstract

A dust removal mechanism for a laser etching machine comprises a pole piece and an outer cover arranged on a pole piece transmission path, wherein a guide assembly for guiding the pole piece tape is arranged inside the outer cover, the guide assembly comprises a first roller and a second roller, and the first roller is provided with an adjusting screw for adjusting the pole piece tape position; a laser sensor for detecting the pole piece position is arranged inside the outer cover, and a laser for marking the pole piece is arranged outside the outer cover; a wind knife for dust removal of the pole piece is arranged on the top of the outer cover, and a dust suction pipe for dust suction in cooperation with the wind knife is arranged at the bottom of the outer cover; compared with the prior art, the wind knife discharges air at the top of the outer cover, and the dust suction pipe suctions dust at the bottom of the outer cover, thereby realizing the upward blowing and downward suction of dust, thereby increasing the speed of dust removal and enhancing the effect of dust removal.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a dust removal mechanism for a laser etching machine. Background Art

[0002] Lithium battery is an energy storage device that uses lithium ions to embed and extract from electrode materials as an electrochemical reaction. It is widely used in electric vehicles, mobile phones, laptops and other fields. It has become the mainstream technology in the current battery field with its high energy density, long life, no pollution, and high safety. Lithium battery has broad development prospects. In the future, it can reduce production costs, pursue higher energy density and cycle life as the goal, and meet the growing energy demand and environmental protection requirements.

[0003] The general preparation process of lithium batteries includes: positive and negative electrode homogenization, coating, scribing, rolling, slitting, winding, shelling and liquid injection, formation and capacity separation. The scribing process can increase the electrolyte infiltration effect and speed, reduce the pore tortuosity of the electrode, improve the effective lithium ion diffusion coefficient, and form grooves to store electrolytes, thereby improving the battery cycle retention rate and reducing the battery internal resistance, and reducing the negative electrode lithium plating. The scribing process usually includes traditional mechanical scribing and laser scribing. Laser scribing has flexible cutting shapes, edge quality control, higher precision, low operating costs, and less dust and burrs during the scribing process. In lithium batteries, dust and burrs may cause battery overheating, short circuits, and even explosions in severe cases.

[0004] To solve the above problems, Chinese patent application number 201810203544.6 discloses an integrated dust removal device for a laser etching machine. The dust removal device disclosed above includes a dust hood body, an air suction nozzle, and a connecting piece. The dust hood body is a square cavity structure, and an air outlet is provided on the lower half of the right side wall. The connecting piece is a funnel-shaped structure that gradually narrows. The large end of the connecting piece is welded to match the shape of the air outlet, and the small end of the connecting piece is smoothly connected to the lower end of the air suction nozzle to form an integrated dust hood component; an annular upper wind shield plate is provided on the dust hood body, which is correspondingly connected to the bottom of the laser scanning head; a narrow strip-shaped air inlet is provided on the lower part of the left side wall, and the upper edge of the air inlet is lower than the horizontal center line of the air outlet; an ion wind rod is installed. A Chinese patent with application number 202210438306.X discloses a dust removal device for laser equipment. The dust removal device disclosed above includes a dust hood, which is installed on the laser lens of the laser equipment and has an opening at the bottom to avoid air; a dust suction connector is arranged on the side of the dust suction connector, and the air inlet part of the dust suction connector is located at the lowest end of the dust suction connector; a slit is arranged on the dust suction connector and at the opposite side of the dust suction connector, and a wind knife is arranged at the slit to blow compressed air into the dust suction hood; a jig table is provided below the bottom of the dust suction hood, and the upper surface of the jig table is 10.8 mm away from the lowest part of the dust suction hood.

[0005] In the above-mentioned prior art, the dust removal function of the laser etcher is realized by cooperating with the suction nozzle, the connecting piece and the ion wind rod. During the dust removal process, the dust is easy to fly around in the dust hood or even adhere to the cover of the dust hood, resulting in poor dust removal effect and incomplete dust removal. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provide a dust removal mechanism for a laser etching machine which can improve the dust removal effect.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a dust removal mechanism for a laser etching machine, comprising a pole piece and an outer cover arranged on the pole piece transmission path, a guide assembly for guiding the pole piece tape is arranged inside the outer cover, the guide assembly comprises a first roller and a second roller, and the first roller is provided with an adjusting screw for adjusting the pole piece tape position; a laser sensor for detecting the pole piece position is arranged inside the outer cover, and a laser for marking the pole piece is arranged outside the outer cover; a wind knife for removing dust from the pole piece is arranged on the top of the outer cover, and a dust suction pipe for dust suction cooperating with the wind knife is arranged at the bottom of the outer cover.

[0008] As a preferred solution of the utility model, the air outlet direction of the wind knife is set downward, and the dust suction direction of the dust suction pipe is set downward.

[0009] As a preferred solution of the utility model, the first roller is arranged above the second roller, and the pole piece passes through the first roller and the second roller.

[0010] As a preferred solution of the utility model, the guide assembly also includes a first mounting seat for mounting the first roller and a second mounting seat for mounting the second roller, and a first waist-shaped hole for adjusting the height of the first roller is formed on the first mounting seat.

[0011] As a preferred solution of the utility model, a second waist-shaped hole for positioning and supporting the second roller is formed on the second mounting seat.

[0012] As a preferred solution of the utility model, the first waist-shaped hole and the second waist-shaped hole are both arranged along the height direction of the outer cover.

[0013] As a preferred solution of the utility model, the adjusting screw is arranged on the top of the first mounting seat, and the adjusting screw is located at two opposite ends of the first roller shaft.

[0014] As a preferred solution of the utility model, a pole piece inlet and a pole piece outlet for entering and exiting the pole piece are formed on the cover shell of the outer cover, and the pole piece inlet and the pole piece outlet are located on the same side of the outer cover. A laser port for laser irradiation is also formed on the outer cover, and the laser port and the pole piece inlet are located on opposite sides of the outer cover.

[0015] As a preferred solution of the utility model, the pole piece inlet is located above the first roller, the pole piece outlet and the second roller are located at the same height, and the laser port, the first roller and the laser are all located at the same height.

[0016] As a preferred solution of the utility model, the laser sensor is located at the same height as the first roller, and the laser sensor is arranged on the moving path of the pole piece.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By setting an outer cover on the transmission path of the electrode, the electrode is dusted, so that during the transmission process, the electrode is blown out at the top of the outer cover by the cooperation of the wind knife set at the top of the outer cover and the dust suction pipe set at the bottom of the outer cover. The dust is sucked at the bottom of the outer cover, thereby realizing the upward blowing and downward suction of the dust, thereby improving the dust removal speed and enhancing the dust removal effect;

[0019] 2. Furthermore, the guide assembly is provided to adjust the running direction of the pole piece, so that the inlet and outlet of the pole piece are located on the same side, reducing the space occupied by the pole piece running, thereby reducing the range of dust dispersion and improving the speed and effect of dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This is the working principle diagram of the utility model

[0023] Figure markings: outer cover 1, pole piece inlet 101, pole piece outlet 102, laser port 103, dust suction pipe 104, wind knife 2, guide assembly 3, first roller 301, second roller 302, first mounting seat 303, first waist-shaped hole 3031, second mounting seat 304, second waist-shaped hole 3041, adjusting screw 305, laser 4, pole piece 5, laser sensor 6. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-Figure 2 As shown, a dust removal mechanism for a laser etching machine includes a pole piece 5 and an outer cover 1 arranged on the transmission path of the pole piece 5, a guide assembly 3 for guiding the pole piece 5 to travel is arranged inside the outer cover 1, the guide assembly 3 includes a first roller 301 and a second roller 302, and the first roller 301 is provided with an adjusting screw 305 for adjusting the traveling position of the pole piece 5; a laser sensor 6 for detecting the position of the pole piece 5 is arranged inside the outer cover 1, and a laser 4 for marking the pole piece 5 is arranged outside the outer cover 1; a wind knife 2 for removing dust from the pole piece 5 is arranged on the top of the outer cover 1, and a dust suction pipe 104 for dust suction cooperating with the wind knife 2 is arranged at the bottom of the outer cover 1.

[0026] Furthermore, the pole piece 5 is arranged through the outer cover 1, and the guide component 3 is arranged on the moving path of the pole piece 5, and the moving direction of the pole piece 5 is adjusted by the guide component 3, so that the pole piece 5 is located on the same side of the outer cover 1 when entering the outer cover 1 and leaving the outer cover 1; the laser sensor 6 is arranged above the pole piece 5 to detect the tape running position of the pole piece 5, so as to determine the scribing position, and the laser is emitted by the laser 4 to irradiate the surface of the pole piece 5 to perform the scribing process; dust burrs will be generated in the process of laser scribing by the laser 4, which may easily cause overheating and short circuit of the battery, and the dust removal function is realized by the cooperation of the wind knife 2 arranged on the top of the outer cover 1 and the dust suction pipe 104 arranged at the bottom of the outer cover 1.

[0027] The air outlet direction of the wind knife 2 is set downward, and the dust suction direction of the dust suction pipe 104 is set downward. Furthermore, the wind knife 2 is set inside the outer cover 1, and the air outlet of the wind knife 2 is set downward. The dust suction pipe 104 is located at the bottom end of the outer cover 1 and is connected to the inside of the outer cover 1. Through the joint action of the wind knife 2 and the dust suction pipe 104, the dust in the outer cover 1 is blown up and sucked down, which avoids the dust from being scattered and flying around in the outer cover 1, thereby improving the dust removal speed and the dust removal effect.

[0028] The first roller 301 is arranged above the second roller 302 , and the pole piece 5 passes through the first roller 301 and the second roller 302 . Further, the first roller 301 and the second roller 302 are located on the same vertical plane, and the pole piece 5 changes its moving direction under the action of the first roller 301 and the second roller 302 .

[0029] The guide assembly 3 also includes a first mounting seat 303 for mounting the first roller 301 and a second mounting seat 304 for mounting the second roller 302. The first mounting seat 303 is formed with a first waist-shaped hole 3031 for adjusting the height of the first roller 301, and the second mounting seat 304 is formed with a second waist-shaped hole 3041 for positioning and supporting the second roller 302. Further, the first waist-shaped hole 3031 and the second waist-shaped hole 3041 are both arranged along the height direction of the outer cover 1. The first roller 301 is connected to the first waist-shaped hole 3031, and the second roller 302 is connected to the second waist-shaped hole 3041. By adjusting the position of the first roller 301 in the first waist-shaped hole 3031, the position of the first roller 301 is adjusted. The adjusting screw 305 is arranged on the top of the first mounting seat 303, and the adjusting screw 305 is located at the opposite ends of the first roller 301. The adjusting screw 305 is rotated to tighten the first roller 301 after the position is adjusted.

[0030] A pole piece inlet 101 and a pole piece outlet 102 for the pole piece 5 to enter and exit are formed on the cover shell of the outer cover 1. The pole piece inlet 101 and the pole piece outlet 102 are located on the same side of the outer cover 1. A laser port 103 for irradiation by the laser 4 is also formed on the outer cover 1. The laser port 103 and the pole piece inlet 101 are located on opposite sides of the outer cover 1. Furthermore, the pole piece inlet 101 is located above the pole piece outlet 102. The pole piece 5 enters the outer cover 1 from the pole piece inlet 101 and comes out from the pole piece outlet 102. The laser port 103 is arranged on the other side wall of the outer cover 1. The laser emitted by the laser 4 is irradiated onto the pole piece 5 through the laser port 103, thereby realizing the marking of the pole piece 5.

[0031] The pole piece inlet 101 is located above the first roller 301, and the pole piece outlet 102 is located at the same height as the second roller 302, ensuring that the pole piece 5 will not touch the outer cover 1 during the tape running process, thereby avoiding damage to the pole piece 5 by the outer cover 1. In addition, the laser port 103, the first roller 301 and the laser 4 are all located at the same height, so that the laser can irradiate the pole piece 5 passing through the first roller 301.

[0032] The laser sensor 6 is located at the same height as the first roller 301 , and is disposed on the moving path of the pole piece 5 , ensuring that the laser sensor 6 can accurately detect the tape position of the pole piece 5 , thereby ensuring the accuracy of the laser 4 marking the pole piece 5 .

[0033] Working principle: the pole piece 5 enters the outer cover 1 through the pole piece inlet 101, the laser sensor 6 patrols the pole piece 5 and locates the required scribing position, the pole piece 5 passes through the first roller 301 and the second roller 302, changes the tape running direction, passes through the pole piece outlet 102, and leaves the outer cover 1; during the tape running process, the laser 4 emits laser at a certain frequency, irradiates the surface of the pole piece 5 through the laser port 103, dissolves the slurry on the pole piece 5, and forms parallel stripes with a certain distance accuracy; dust is inevitably generated during the scribing process, the outer cover 1 confines the dust to the internal space of the outer cover 1, the wind knife 2 blows the dust downward, and the dust suction pipe 104 sucks the dust outward, thereby realizing the dust removal function.

[0034] like Figure 3 As shown, A in the figure is the tape path of the pole piece 5, B in the figure is the air outlet direction of the wind knife 2, C in the figure is the dust suction direction of the dust suction pipe 104, and D in the figure is the laser irradiation path of the laser 4.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0036] Although the following terms are used more frequently in this article: outer cover 1, pole piece inlet 101, pole piece outlet 102, laser port 103, dust suction pipe 104, wind knife 2, guide assembly 3, first roller 301, second roller 302, first mounting seat 303, first waist-shaped hole 3031, second mounting seat 304, second waist-shaped hole 3041, adjusting screw 305, laser 4, pole piece 5, laser sensor 6, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A dust removal mechanism for a laser etching machine, comprising a pole piece (5) and an outer cover (1) arranged on a transmission path of the pole piece (5), characterized in that: The outer cover (1) is provided with a guide assembly (3) for guiding the pole piece (5) to travel, the guide assembly (3) comprising a first roller (301) and a second roller (302), the first roller (301) being provided with an adjustment screw (305) for adjusting the travel position of the pole piece (5); the outer cover (1) is provided with a laser sensor (6) for detecting the position of the pole piece (5), and the outer cover (1) is provided with a laser (4) for marking the pole piece (5); the top of the outer cover (1) is provided with a wind knife (2) for removing dust from the pole piece (5), and the bottom of the outer cover (1) is provided with a dust suction pipe (104) for dust suction in cooperation with the wind knife (2).

2. A dust removal mechanism for a laser etching machine according to claim 1, characterized in that: The air outlet direction of the wind knife (2) is arranged downward, and the dust suction direction of the dust suction pipe (104) is arranged downward.

3. A dust removal mechanism for a laser etching machine according to claim 1, characterized in that: The first roller (301) is arranged above the second roller (302), and the pole piece (5) passes through the first roller (301) and the second roller (302).

4. The dust removal mechanism for a laser etching machine according to claim 1, characterized in that: The guide assembly (3) further comprises a first mounting seat (303) for mounting the first roller (301) and a second mounting seat (304) for mounting the second roller (302); the first mounting seat (303) is formed with a first waist-shaped hole (3031) for adjusting the height of the first roller (301).

5. A dust removal mechanism for a laser etching machine according to claim 4, characterized in that: A second waist-shaped hole (3041) for positioning and supporting the second roller shaft (302) is formed on the second mounting seat (304).

6. A dust removal mechanism for a laser etching machine according to claim 5, characterized in that: The first waist-shaped hole (3031) and the second waist-shaped hole (3041) are both arranged along the height direction of the outer cover (1).

7. The dust removal mechanism for a laser etching machine according to claim 4, characterized in that: The adjusting screw (305) is arranged on the top of the first mounting seat (303), and the adjusting screw (305) is located at two opposite ends of the first roller (301).

8. The dust removal mechanism for a laser etching machine according to claim 1, characterized in that: A pole piece inlet (101) and a pole piece outlet (102) for the pole piece (5) to enter and exit are formed on the cover shell of the outer cover (1), the pole piece inlet (101) and the pole piece outlet (102) being located on the same side of the outer cover (1), and a laser port (103) for irradiation by a laser (4) is also formed on the outer cover (1), the laser port (103) and the pole piece inlet (101) being located on opposite sides of the outer cover (1).

9. A dust removal mechanism for a laser etching machine according to claim 8, characterized in that: The pole piece inlet (101) is located above the first roller (301), the pole piece outlet (102) and the second roller (302) are located at the same height, and the laser port (103), the first roller (301) and the laser (4) are all located at the same height.

10. The dust removal mechanism for a laser etching machine according to claim 1, characterized in that: The laser sensor (6) is located at the same height as the first roller (301), and the laser sensor (6) is arranged on the moving path of the pole piece (5).

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