Dust removal protection device of laser cutting machine

Abstract

The utility model relates to a dust removal protection device of a laser cutting machine, the laser cutting machine comprises a cutting cavity and a laser cutting head, the cutting cavity is provided with a cutting opening, the dust removal protection device comprises an optical glass sheet and an installation part, the optical glass sheet is installed in the cutting opening in a sealing fit mode through the installation part, and the optical glass sheet is provided with a dust removal opening. And a laser beam of the laser cutting head can pass through the optical glass sheet to cut a tab foil area of the pole piece in the cutting cavity. The optical glass sheet is installed in the cutting opening of the cutting cavity in a sealing fit mode through the installation piece, a laser beam of the laser cutting head can cut the pole piece in the cutting cavity through the optical glass sheet, the cutting opening can be sealed, dust generated in the cutting cavity can be effectively prevented from overflowing, and the working efficiency is improved. And the dust removal device can conveniently clean the generated dust in a concentrated manner, and the stability of airflow circulation is ensured, so that the pole piece cutting quality and the production stability are ensured.

Description

Technical Field

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

[0002] Laser cutting is a processing method that uses a high-energy laser beam to cut materials. At present, in the process of cutting pole pieces using a laser cutting machine, a cutting port is set on one side of the cutting chamber of the cutting machine, and then a laser cutting head is used to cut the pole piece material inside through the cutting port. However, a large amount of dust will be generated inside the cutting chamber of the laser cutting machine. If it is not removed in time, it will easily adhere to the pole piece, affecting the production quality of the pole piece. Therefore, a dust removal device with wind dust removal is generally set on the side wall of the cutting chamber. Although it can effectively clean the dust, the cutting chamber equipped with a dust removal device still has the following problems: During the dust removal process, the circulating airflow is prone to turbulence when passing through the cutting port, and dust will overflow, reducing the dust removal effect. In addition, when turbulence occurs, the wind speed of the dust removal is unstable, which can easily cause the cut pole piece to shake, causing the pole piece to be defocused, causing the pole piece to be cut or broken, and reducing the quality of laser cutting. Utility Model Content

[0003] Based on this, it is necessary to address the technical problem that when using a laser cutting machine to cut pole pieces, turbulence and dust overflow are prone to occur at the cutting port of the cutting cavity, which reduces the dust removal effect and affects the pole piece cutting quality. The utility model provides a dust removal protection device for a laser cutting machine.

[0004] The utility model proposes a dust removal and protection device for a laser cutting machine, the laser cutting machine comprises a cutting chamber and a laser cutting head, a cutting opening is opened on the cutting chamber, the dust removal and protection device comprises an optical glass piece and a mounting part, the optical glass piece is sealed and installed in the cutting opening through the mounting part, and the laser beam of the laser cutting head can pass through the optical glass piece to cut the pole piece in the cutting chamber.

[0005] As a further improvement of the above scheme of the utility model, the mounting part includes a protective cover, a fixing plate and a plurality of bolts; the protective cover is arranged in the cutting opening and its outer surface is in contact with the inner surface of the cutting opening, both ends of the protective cover are through-connected, and a mounting groove is formed at one end of the protective cover outside the cutting cavity; a fixing plate is arranged in the mounting groove and the fixing plate is adapted to the mounting groove, and the optical glass sheet is mounted on the fixing plate; a plurality of bolts are used to connect the fixing plate, the protective cover and the cutting cavity.

[0006] As a further improvement of the above solution of the utility model, the dust removal and protection device also includes a dust scraper for regularly cleaning the optical glass sheet.

[0007] As a further improvement of the above-mentioned scheme of the utility model, the scraper includes a scraper plate, a sliding rod and a movable plate. The scraper plate is arranged in the protective cover and fits with the inner surface of the fixed plate; one end of the sliding rod is connected to the scraper plate, and the other end of the sliding rod slides through the protective cover and is connected to the movable plate outside the protective cover. A section of the sliding rod located outside the protective cover or a section of the sliding rod located inside the protective cover is equipped with a spring, which presses or pulls the movable plate to drive the scraper plate to move, thereby cleaning the inner surface of the optical glass sheet.

[0008] As a further improvement of the above solution of the utility model, the dust scraping plate adopts a flexible dust scraping plate.

[0009] As a further improvement of the above solution of the utility model, the dust removal and protection device also includes a dust collecting piece, a dust outlet is opened at the bottom of the protective cover, and the dust collecting piece is connected with the protective cover through the dust outlet to collect dust.

[0010] As a further improvement of the above-mentioned scheme of the utility model, the dust collecting part includes a dust box and a negative pressure pump. The dust box is fixed at the bottom of the protective cover and its top is connected with the protective cover through the dust outlet. The negative pressure pump is installed at the bottom of the dust box and connected with the dust box.

[0011] As a further improvement of the above solution of the utility model, a fixing plate 2 is connected to one side of the dust collecting box, a fixing plate 3 is fixed on the fixing plate 2, and the fixing plate 3 is connected to the cutting cavity.

[0012] As a further improvement of the above-mentioned scheme of the utility model, the dust removal protection device also includes an air expansion hopper and a dust removal pipe. The air expansion hopper is installed on the cutting chamber and is connected to the inside of the cutting chamber. A plurality of observation windows are provided at one end of the air expansion hopper close to the cutting chamber, and the end of the air expansion hopper away from the cutting chamber is connected to the dust removal pipe, and the end of the dust removal pipe away from the air expansion hopper is connected to a docking ring.

[0013] As a further improvement of the above scheme of the utility model, a side opening is provided on the side of the cutting chamber away from the air expansion hopper, dust-proof splints are provided on both sides of the side opening, and the dust-proof splints are detachably installed on the cutting chamber, and conveying roller 1 and conveying roller 2 for conveying the electrode piece are respectively provided above and below the two dust-proof splints. The electrode piece is conveyed between the two dust-proof splints by conveying roller 1 and conveying roller 2, and the ear foil area of ​​the electrode piece enters into the cutting chamber through the side opening.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model uses a mounting piece to seal and install an optical glass piece in the cutting opening of the cutting cavity. The laser beam of the laser cutting head can pass through the optical glass piece to cut the pole piece in the cutting cavity, and the cutting opening can be sealed, which can effectively prevent the dust generated inside the cutting cavity from overflowing, which is beneficial for the dust removal device to centrally clean the generated dust and ensure the stability of the airflow, thereby ensuring the quality of pole piece cutting and the stability of production.

[0016] 2. The utility model provides a scraper. When the optical glass sheet needs to be cleaned, the movable plate is pressed to compress the spring, driving the scraper plate to rise and fall back and forth, thereby scraping off the dust attached to the surface of the optical glass sheet to ensure that the cutting beam of the laser cutting head can stably enter the cutting cavity.

[0017] 3. The utility model provides a dust collecting part and connects a dust collecting box with a negative pressure pump at the bottom of the protective cover. When the dust is generated and settles in the dust collecting box, the settled dust can be sucked out by the negative pressure pump, thereby reducing the dust removal wind speed at the cutting position, avoiding severe shaking of the electrode due to the suction wind speed, and ensuring the stability of electrode production.

[0018] 4. The utility model is provided with an air expansion hopper. After being connected to an external wind dust removal device through a docking ring, the air flow range is expanded through the air expansion hopper, and the wind force can be weakened so as to blow away the attached dust at a lower wind speed. The observation window enclosed on the air expansion hopper can be opened to allow part of the air flow to flow out from the side wall of the air expansion hopper, thereby further reducing the wind force and improving the stability of the electrode processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a dust removal protection device for a laser cutting machine proposed in an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of a dust-proof clamp in a dust removal protection device of a laser cutting machine proposed in an embodiment of the utility model;

[0021] Figure 3 for Figure 2 Side view of

[0022] Figure 4 A schematic diagram of the structure of a mounting member in a dust removal protection device for a laser cutting machine proposed in an embodiment of the utility model;

[0023] Figure 5 for Figure 4 A partial cross-sectional view of

[0024] Figure 6A schematic diagram of the structure of a dust scraper in a dust removal protection device of a laser cutting machine proposed in an embodiment of the utility model;

[0025] Figure 7 The present invention is a schematic structural diagram of an air diffuser in a dust removal protection device of a laser cutting machine proposed in an embodiment of the present invention.

[0026] Figure numerals: 1. cutting chamber; 2. laser cutting head; 3. optical glass sheet; 4. pole piece; 5. protective cover; 6. fixed plate 1; 7. bolt; 8. dust scraper plate; 9. slide bar; 10. movable plate; 11. spring; 12. dust outlet; 13. dust collecting box; 14. negative pressure pump; 15. fixed plate 2; 16. fixed plate 3; 17. air expansion hopper; 18. dust removal pipe; 19. observation window; 20. docking ring; 21. dust isolation splint; 22. mounting table; 23. lower hopper; 24. conveyor roller 1; 25. conveyor roller 2; 26. mounting plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1 The dust removal protection device of the laser cutting machine of this embodiment includes an optical glass sheet 3 and a mounting part.

[0029] The laser cutting machine involved in this embodiment mainly includes a mounting platform 22, a cutting chamber 1 and a laser cutting head 2. The mounting platform 22 is used to mount the laser cutting machine at a specified position to ensure the stable operation of the laser cutting work. The cutting chamber 1 is mounted on the mounting platform 22, a waste outlet is provided at the bottom of the cutting chamber 1, and a lower hopper 23 connected to the waste outlet is installed at the bottom of the mounting platform 22. A side opening is provided on the side of the cutting chamber 1 away from the air diffuser 17, and a lower hopper 23 connected to the waste outlet is installed at the bottom of the mounting platform 22. Figure 2 , Figure 3, dust-proof clamps 21 are arranged on both sides of the side opening, and the dust-proof clamps 21 are detachably mounted on the cutting chamber 1 through the mounting plate 26. Conveying rollers 1 24 and 25 for conveying the electrode piece 4 are arranged above and below the two dust-proof clamps 21, respectively. The electrode piece 4 is conveyed between the two dust-proof clamps 21 through conveying rollers 1 24 and 25, and the tab foil area of ​​the electrode piece 4 enters the cutting chamber 1 through the side opening. The laser cutting head 2 is also mounted on the mounting table 22, and a cutting opening is opened in the cutting chamber 1 facing the laser cutting head 2. The laser beam of the laser cutting head 2 enters the cutting chamber 1 through the cutting opening to cut the tab foil area of ​​the electrode piece 4 inside the cutting chamber 1.

[0030] The optical glass sheet 3 of this embodiment is installed in the cutting opening by sealing with the mounting parts. The laser beam of the laser cutting head 2 can pass through the optical glass sheet 3 to cut the pole piece 4 in the cutting cavity 1, and can seal the cutting opening, which can effectively prevent the dust generated inside the cutting cavity 1 from overflowing, is conducive to the dust removal device to centrally clean the generated dust, and ensures the stability of the airflow, thereby ensuring the quality of cutting the pole piece 4 and the stability of production.

[0031] In combination with 4, the mounting member in this embodiment includes a protective cover 5, a fixing plate 6 and a plurality of bolts 7. The protective cover 5 is arranged in the cutting opening and its outer surface is fitted with the inner surface of the cutting opening. Both ends of the protective cover 5 are connected, and a mounting groove is formed at one end of the protective cover 5 located outside the cutting cavity 1. The fixing plate 6 is arranged in the mounting groove and the fixing plate is adapted to the mounting groove, and the optical glass piece 3 is mounted on the fixing plate 6. A plurality of bolts 7 are used to connect the fixing plate, the protective cover 5 and the cutting cavity 1. When the optical glass piece 3 is damaged, it is only necessary to rotate the bolt 7 to remove the fixing plate 6 with the optical glass piece 3, replace or clean it, thereby saving equipment costs. Of course, in other embodiments, the mounting member can also be a sealing rubber ring or directly a frame. The optical glass piece 3 can be installed in the cutting opening by sealingly connecting the sealing rubber ring or the frame to the outer periphery of the optical glass piece 3, and then sealingly connecting the sealing rubber ring or the frame to the cutting opening.

[0032] In order to facilitate and timely clean the dust attached to the optical glass sheet 3, the dust removal and protection device of this embodiment further includes a dust scraper for regularly cleaning the optical glass sheet 3. Figure 5 , Figure 6The scraper includes a scraper plate 8, two slide bars 9 and a movable plate 10. The scraper plate 8 is arranged inside the protective cover 5 and fits with the inner surface of the fixed plate. One end of the two slide bars 9 is connected to the scraper plate 8, and the other end of the two slide bars 9 slides through the protective cover 5 and is connected to the movable plate 10 on the top of the protective cover 5. A section of the two slide bars 9 located outside the protective cover 5 is provided with a spring 11. Through the above structural arrangement, when it is necessary to clean the optical glass sheet 3, the movable plate 10 is pressed to compress the spring 11, driving the scraper plate 8 to rise and fall back and forth, thereby scraping off the dust attached to the surface of the optical glass sheet 3 to ensure that the cutting beam of the laser cutting head 2 can stably enter the cutting cavity 1. In order to avoid damaging the optical glass sheet 3 during dust removal, the scraper plate 8 of this embodiment adopts a flexible scraper plate 8. Of course, in other embodiments, a hard scraper 8 may be used and a flexible layer may be provided on the side of the hard scraper 8 facing the optical glass sheet 3. When the scraper 8 moves up and down, the flexible layer scrapes off the dust attached to the surface of the optical glass sheet 3.

[0033] The dust removal and protection device of this embodiment also includes a dust collecting part. A dust outlet 12 is provided at the bottom of the protective cover 5. The dust collecting part is connected to the protective cover 5 through the dust outlet 12 to collect dust. The dust collecting part includes a dust collecting box 13 and a negative pressure pump 14. The dust collecting box 13 is fixed at the bottom of the protective cover 5 and its top is connected to the protective cover 5 through the dust outlet 12. A fixing plate 2 15 is connected to one side of the dust collecting box 13. A fixing plate 3 16 is fixed on the fixing plate 2 15. The fixing plate 3 16 is connected to the cutting chamber 1. The negative pressure pump 14 is installed at the bottom of the dust collecting box 13 and is connected to the dust collecting box 13. By connecting the dust collecting box 13 with the negative pressure pump 14 at the bottom of the protective cover 5, the dust can be generated and settled in the dust collecting box 13, and the settled dust can be sucked out by the negative pressure pump 14, thereby reducing the dust removal wind speed at the cutting position, avoiding the violent shaking of the pole piece 4 caused by the suction wind speed, and ensuring the stability of the production of the pole piece 4.

[0034] Combination Figure 7 The dust removal and protection device of this embodiment also includes an air expansion hopper 17 and a dust removal pipe 18. The air expansion hopper 17 is arranged on the side of the cutting chamber 1 away from the side opening. The air expansion hopper 17 is installed on the cutting chamber 1 and communicated with the inside of the cutting chamber 1. A plurality of observation windows 19 are arranged at one end of the air expansion hopper 17 close to the cutting chamber 1. The end of the air expansion hopper 17 away from the cutting chamber 1 is connected to the dust removal pipe 18. The end of the dust removal pipe 18 away from the air expansion hopper 17 is connected to a docking ring 20. After being connected to the dust removal device of the external wind dust removal through the docking ring 20, the air flow range is expanded through the air expansion hopper 17, and the wind force can be weakened so as to blow away the attached dust at a relatively low wind speed. Moreover, by opening the observation window 19 enclosed on the air expansion hopper 17, part of the air flow can flow out from the side wall of the air expansion hopper 17, which plays a role in further reducing the wind force and improving the stability of the processing of the pole piece 4.

[0035] Since the side wall of the cutting chamber 1 is provided with a dust removal device for wind dust removal, two oppositely arranged side openings are opened on the cutting chamber 1, and dust-proof clamps 21 are provided at both side openings. The dust-proof clamps 21 are installed on the cutting chamber 1 through the mounting plate 26, wherein the tab foil area of ​​the pole piece 4 to be cut is located between the two dust-proof clamps 21 and the rest of the area is located between the two dust-proof clamps 21. When cutting is performed inside the cutting chamber 1, the dust-proof clamps 21 are used to stop at the side opening position of the cutting chamber 1, and the two dust-proof clamps 21 are used to keep the airflow flowing, so as to slow down the shaking of the pole piece 4 in the cutting chamber 1 by the airflow, so as to ensure the stability of the processing of the pole piece 4 by the defocus amount of the laser.

[0036] The working principle and use process of the utility model are as follows:

[0037] The pole piece 4 material is conveyed into the cutting chamber 1 by using the conveying roller 1 24 and the conveying roller 2 25, and then the laser cutting head 2 is started. The cutting beam emitted by the laser cutting head 2 passes through the optical glass sheet 3 and cuts the pole ear foil area of ​​the pole piece 4 in the cutting chamber 1. At the same time, the external dust removal device is started to introduce air into the dust removal pipe 18. After the airflow passes through the air expansion bucket 17 to expand the flow range, the incoming wind force is reduced. At the same time, the negative pressure pump 14 is started to draw the airflow and the blown dust in the cutting chamber 1 into the protective cover 5, and then through the dust outlet 12 into the dust collecting box 13 for collection and recovery. The cut waste falls from the bottom of the cutting chamber 1 to the lower hopper 23 for collection. When part of the airflow is led out from the cutting chamber 1, it will be blocked by the dust isolation splint 21 to slow down the airflow velocity and reduce the shaking of the pole piece 4, and at the same time, avoid the overflowed dust from falling off and adhering to the surface of the pole piece 4 during the cutting process.

[0038] After cutting the electrode piece 4 for a period of time, check the cleanliness of the inner wall of the optical glass piece 3, and push the pressing plate downward. The sliding rod 9 pushes the scraper plate 8 downward and compresses the spring 11. The scraper plate 8 scrapes the dust attached to the inner wall of the optical glass piece 3 downward, and then releases the pressing plate. The spring 11 pushes the pressing plate to rise, so that it can be pressed again to achieve reciprocating scraping of the dust attached to the inner wall of the optical glass piece 3 to ensure that the cutting beam of the laser cutting head 2 can stably enter the cutting cavity 1. When the optical glass piece 3 is damaged, it is only necessary to rotate the bolt 7 to remove the fixing plate 6 with the optical glass piece 3 for replacement or cleaning, thereby saving equipment costs.

[0039] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field 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. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A dust removal protection device for a laser cutting machine, the laser cutting machine comprising a cutting chamber (1) and a laser cutting head (2), the cutting chamber (1) being provided with a cutting opening, characterized in that: The dust removal protection device comprises an optical glass sheet (3) and a mounting piece, wherein the optical glass sheet (3) is installed in the cutting opening in a sealing manner through the mounting piece, and a laser beam of a laser cutting head (2) can pass through the optical glass sheet (3) to cut the tab foil area of ​​the pole piece (4) in the cutting cavity (1).

2. The dust removal protection device for a laser cutting machine according to claim 1, characterized in that: The mounting member comprises a protective cover (5), a fixing plate (6) and a plurality of bolts (7); the protective cover (5) is arranged in the cutting opening and its outer surface is in contact with the inner surface of the cutting opening, the two ends of the protective cover (5) are connected, and a mounting groove is formed at one end of the protective cover (5) located outside the cutting cavity (1); the fixing plate (6) is arranged in the mounting groove and the fixing plate (6) is adapted to the mounting groove, and the optical glass sheet (3) is mounted on the fixing plate (6); and the plurality of bolts (7) are used to connect the fixing plate (6), the protective cover (5) and the cutting cavity (1).

3. The dust removal protection device for a laser cutting machine according to claim 2, characterized in that: The dust removal and protection device also comprises a dust scraping member for regularly cleaning the optical glass sheet (3).

4. The dust removal protection device for a laser cutting machine according to claim 3, characterized in that: The scraper comprises a scraper plate (8), a slide bar (9) and a movable plate (10); the scraper plate (8) is arranged inside the protective cover (5) and is fitted with the inner surface of the fixed plate; one end of the slide bar (9) is connected to the scraper plate (8), and the other end of the slide bar (9) slides through the protective cover (5) and is connected to the movable plate (10) outside the protective cover (5); a section of the slide bar (9) located outside the protective cover (5) or a section of the slide bar (9) located inside the protective cover (5) is provided with a spring (11), which presses or pulls the movable plate (10) to drive the scraper plate (8) to move, thereby cleaning the inner surface of the optical glass sheet (3).

5. The dust removal protection device for a laser cutting machine according to claim 4, characterized in that: The dust scraping plate (8) is a flexible dust scraping plate (8).

6. The dust removal protection device for a laser cutting machine according to claim 2, characterized in that: The dust removal and protection device also includes a dust collecting piece. A dust outlet (12) is provided at the bottom of the protection cover (5). The dust collecting piece is connected to the protection cover (5) through the dust outlet (12) to collect dust.

7. The dust removal protection device for a laser cutting machine according to claim 6, characterized in that: The dust collecting component comprises a dust collecting box (13) and a negative pressure pump (14); the dust collecting box (13) is fixed to the bottom of the protective cover (5) and the top of the dust collecting box is connected to the protective cover (5) through a dust outlet (12); the negative pressure pump (14) is installed at the bottom of the dust collecting box (13) and is connected to the dust collecting box (13).

8. The dust removal protection device for a laser cutting machine according to claim 2, characterized in that: A second fixing plate (15) is connected to one side of the dust collecting box (13), a third fixing plate (16) is fixed on the second fixing plate (15), and the third fixing plate (16) is connected to the cutting chamber (1).

9. The dust removal protection device for a laser cutting machine according to claim 1, characterized in that: The dust removal protection device also includes an air diffuser (17) and a dust removal pipe (18); the air diffuser (17) is installed on the cutting chamber (1) and communicated with the interior of the cutting chamber (1); a plurality of observation windows (19) are provided at one end of the air diffuser (17) close to the cutting chamber (1); an end of the air diffuser (17) away from the cutting chamber (1) is connected to the dust removal pipe (18); and an end of the dust removal pipe (18) away from the air diffuser (17) is connected to a docking ring (20).

10. The dust removal protection device for a laser cutting machine according to claim 9, characterized in that: A side opening is provided on a side of the cutting chamber (1) away from the air diffuser (17), dust-proof clamping plates (21) are arranged on both sides of the side opening, and the dust-proof clamping plates (21) are detachably mounted on the cutting chamber (1), and a conveying roller 1 (24) and a conveying roller 2 (25) for conveying the electrode piece (4) are respectively arranged above and below the two dust-proof clamping plates (21), and the electrode piece (4) is conveyed between the two dust-proof clamping plates (21) via the conveying roller 1 (24) and the conveying roller 2 (25), and the electrode ear foil area of ​​the electrode piece (4) enters the cutting chamber (1) via the side opening.

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