A negative pressure pulse dust removal device of a laser slotter

Abstract

The utility model relates to laser cutting technical field, concretely relates to a kind of laser slotter negative pressure pulse dust removal device.The laser slotter negative pressure pulse dust removal device, including collection unit, dust removal unit and air pipe;The collection unit is installed on the rack of laser slotter, including collection mesa and collection cover, and the collection mesa is grid type structure;The dust removal unit includes dust removal box, dust removal bag and dust removal fan.The utility model laser slotter negative pressure pulse dust removal device can effectively prevent the dust produced when laser slotter cuts silicon steel sheet from escaping, realize effective collection and processing dust, and can prevent silicon steel sheet from displacement during the cutting process of laser slotter.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting technology, specifically to a negative pressure pulse dust removal device for a laser grooving machine. Background Technology

[0002] Laser grooving machines are devices that use high-energy laser beams to perform non-contact precision grooving on material surfaces. They are widely used in various industrial fields such as semiconductors, electronics, silicon steel, packaging, and construction. During operation, they often generate fumes, debris, and welding slag, requiring timely dust removal.

[0003] In existing technologies, the most common dust removal methods for laser grooving of silicon steel sheets are wet dust removal and dry dust removal. However, wet dust removal inevitably results in water vapor liquefaction and adhesion to the silicon steel coil during dust treatment, causing corrosion, affecting performance, and resulting in unnecessary material waste. Dry dust removal, on the other hand, allows dust to escape in various places, posing significant health hazards to users, and the escaped dust requires secondary treatment, which is difficult and costly. In summary, existing dust removal methods are insufficient to meet the dust removal requirements for silicon steel sheets. Utility Model Content

[0004] The present invention aims to solve the above problems and provides a negative pressure pulse dust removal device for laser grooving machines, which can effectively prevent the dust generated when the laser grooving machine cuts silicon steel sheets from escaping, and achieve effective collection and treatment of dust.

[0005] According to the technical solution of this utility model, the negative pressure pulse dust removal device for the laser grooving machine includes a collection unit, a dust removal unit, and a duct connecting the collection unit and the dust removal unit; The collection unit is installed on the frame of the laser grooving machine and includes a collection table and a collection cover. The collection table has a grid structure and is set on the worktable of the frame. The collection cover has an outlet that connects to the air duct. The collection cover includes a bottom plate and several side plates. The side plates are installed between adjacent columns of the frame, and the bottom plate is set between the bottoms of all the side plates. The dust removal unit includes a dust collection box, a dust collection bag, and a dust removal fan; the lower part of the dust collection box has an inlet that connects to the air duct, and a dust removal cavity is formed inside the dust collection box; the dust collection bag is installed inside the dust removal cavity, located above the inlet, with the opening of the dust collection bag facing downwards; the dust removal fan is installed inside the dust removal cavity, located above the dust collection bag.

[0006] Furthermore, the collection platform includes several parallel grid strips, and the distance between adjacent grid strips can be adjusted; each pair of adjacent grid strips forms a group, and a collection groove is formed between the two grid strips in each group.

[0007] Furthermore, the outlet can be one or more.

[0008] Furthermore, both the outlet and the inlet are provided with tapered connecting short pipes, the large end of which is connected to the collection hood or the dust collection box, and the small end is connected to the air duct.

[0009] Furthermore, there are multiple dust collection bags installed on a partition plate in the middle of the dust collection chamber, with the openings of the dust collection bags corresponding one-to-one with the through holes on the partition plate.

[0010] Furthermore, a keel is provided above the through hole of the partition, and the dust bag is fitted onto the keel.

[0011] Furthermore, a pulse dust collector is installed on the dust collection box, which is used to spray compressed air onto the dust collection bag.

[0012] Furthermore, a dust collection trough is provided at the bottom of the dust removal chamber, and the dust collection trough is located directly below the opening of the dust removal bag.

[0013] Furthermore, the dust removal fan is a variable frequency fan.

[0014] Furthermore, a silencer is provided on the top of the dust collection box.

[0015] Compared with the prior art, the technical solution of this utility model has the following advantages: it adopts a negative pressure form, with the air inlet below the worktable of the laser grooving machine, so that the cutting dust can be collected in time, and the silicon steel sheet can be adsorbed on the worktable to prevent it from shifting; the generated dust is collected in the dust collection box and can be cleaned regularly; the dust collection box is equipped with a pulse device to periodically spray compressed air into the collection bag, thereby extending the dust collection cycle of the dust collector. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the negative pressure pulse dust removal device for the laser grooving machine of this utility model.

[0017] Figure 2 This is a schematic diagram of the dust removal unit of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1-Collection platform, 1.1-Grate strip, 2-Collection cover, 2.1-Side plate, 3-Air duct, 4-Dust collection box, 5-Dust collection bag, 6-Dust collection fan, 7-Partition plate, 7.1-Through hole, 8-Dust collection trough, 9-Silencer, 10-Solenoid valve, 11-Connecting short pipe, 12-Frame, 12.1-Column, 13-Roller. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0020] like Figure 1 and 2 As shown, this utility model provides a negative pressure pulse dust removal device for a laser grooving machine, including a collection unit, a dust removal unit, and an air duct 3 for connecting the collection unit and the dust removal unit; The collection unit is installed on the frame 12 of the laser grooving machine and includes a collection table 1 and a collection cover 2. The collection table 1 has a grid structure and is set on the worktable of the frame 12, which can directly replace the original worktable as the table for grooving silicon steel sheets. The collection cover 2 includes a base plate and several side plates 2.1. The side plates 2.1 are installed between adjacent columns 12.1 of the frame 12, and the base plate is set between the bottoms of all the side plates 2.1. The side plates 2.1 and the base plate, together with the columns 12.1, form an upward-opening collection space, and the opening of the collection space is the collection table 1. The collection cover 2 has an outlet connected to a ventilation pipe 3, which can be opened on a designated side plate 2.1. During dust removal operations, a negative pressure is formed in the collection space. Dust and debris generated during grooving are sucked in from the grid gaps of the collection table 1, while the silicon steel sheets are adsorbed onto the collection table 1. With the help of other positioning structures on the laser grooving machine, displacement can be avoided, which would cause deviation in the grooving position.

[0021] The dust collection unit includes a dust collection box 4, with an inlet for a ventilation duct 3 at the bottom. The interior of the dust collection box 4 forms a dust collection chamber, inside which dust collection bags 5 and a dust collection fan 6 are installed. Rollers 13 can also be installed at the bottom of the dust collection box 4 for easy movement. The dust collection bags 5 are downward-facing cloth bags, allowing airflow while isolating dust. The installation height of the dust collection bags 5 needs to be higher than the inlet height, and the dust collection fan 6 is installed above the dust collection bags 5. When the dust collection fan 6 operates, the mixed gas in the collection unit enters the dust collection bags 5 through the duct 3. The dust in the gas is isolated by the dust collection bags 5, while the clean air is discharged from the dust collection chamber through the outlet of the dust collection fan 6.

[0022] In some preferred embodiments, the collection platform 1 includes several parallel grid strips 1.1, arranged in pairs. Each pair of grid strips 1.1 can accommodate laser grooving of a single type of silicon steel sheet. A collection groove is formed between each pair of grid strips 1.1, from which dust from laser grooving enters the collection hood 2. The width of the collection groove and the distance between adjacent groups are adjustable. Adjusting the groove width allows for grooving of different sizes, and adjusting the distance between adjacent groups allows for simultaneous grooving of silicon steel sheets of different sizes. Specifically, several screw-nut assemblies perpendicular to the grid strips 1.1 can be installed at the bottom of the grid strips 1.1. The rotation of the screws is controlled by a motor, and the nuts are connected to the grid strips 1.1. Grid strips 1.1 that need to move synchronously can be connected to nuts on the same screw. It is conceivable that threads in different directions can also be provided on the screws to meet the movement requirements of the grid strips 1.1 in different directions. To ensure the parallelism of the movement of the grid bar 1.1, a guide structure can be set, such as setting several slide rails perpendicular to the grid bar 1.1 and setting corresponding sliders on the grid bar 1.1, or using a multi-screw nut assembly for synchronous control.

[0023] The collection hood 2 can have one or more outlets, and multiple outlets can be set on the same side or different sides of the collection hood 2. A tapered connecting pipe 11 is provided outside both the outlet and the inlet. The large end of the connecting pipe 11 is connected to the collection hood 2 or the dust collector 4, and the small end is connected to the air duct 3, which plays a certain role in guiding the flow.

[0024] There are multiple dust bags (5 in total). Figure 2 Twenty dust bags, arranged in a 4x5 pattern, are installed on a partition 7 located in the middle of the dust collection chamber. The openings of the dust bags 5 correspond one-to-one with the through holes 7.1 on the partition 7. A support frame can also be installed above the through holes 7.1 on the partition 7, on which the dust bags 5 are fitted to support them. The support frame can have a mesh structure, which can effectively reduce friction between the dust bags 5 and the support frame, extend the service life of the dust bags 5, and facilitate bag removal.

[0025] A pulse jet dust collector can also be installed on the dust collection box 4. The pulse jet dust collector is used to blow compressed air into the dust collection bag 5. Its main components include a solenoid valve for controlling the release of compressed air, a blowpipe and nozzle for directing the compressed air to the dust collection bag 5, a pulse controller for periodically sending signals to control the opening and closing of the solenoid valve, and an air storage tank for storing the compressed air. Figure 1Due to limited viewing angle, only the solenoid valve 10 of the pulse dust collector is visible in the image. During operation, the pulse dust collector releases compressed air instantaneously, creating a pulse airflow that causes the dust bag 5 to expand and vibrate, thereby removing dust adhering to the dust bag 5. The removed dust falls through the opening of the dust bag 5 to the bottom of the dust collection chamber. To collect this falling dust, a dust collection trough 8 can be installed at the bottom of the dust collection chamber, directly below the opening of the dust bag 5. The dust collection trough 8 can be a drawer-type structure for easy access; correspondingly, an opening for the dust collection trough 8 needs to be provided on the dust collection box 4, for example, by providing an openable door at the bottom of the dust collection box 4.

[0026] The dust removal fan 6 is a variable frequency fan. Its frequency control is interlocked with the silicon steel sheet. Specifically, a PLC (Programmable Logic Controller) can be used to adjust the speed of the dust removal fan 6 in real time based on the size of the silicon steel sheet detected by the laser grooving machine, thereby ensuring air volume and dust removal effect while saving energy to a greater extent.

[0027] A silencer 9 can also be installed on the top of the dust collection box 4 to reduce the noise of the dust collection fan 6 and create a good working environment.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A negative pressure pulse dust removal device for a laser grooving machine, characterized in that, Includes a collection unit, a dust removal unit, and a duct (3) connecting the collection unit and the dust removal unit; The collection unit is installed on the frame of the laser grooving machine and includes a collection table (1) and a collection cover (2); the collection table (1) is a grid structure and is set on the worktable of the frame; the collection cover (2) has an outlet that connects to the air duct (3), and the collection cover (2) includes a bottom plate and several side plates (2.1). The side plates (2.1) are installed between adjacent columns of the frame, and the bottom plate is set between the bottoms of all the side plates (2.1); The dust removal unit includes a dust removal box (4), a dust removal bag (5), and a dust removal fan (6); the lower part of the dust removal box (4) has an inlet that connects to the air duct (3), and a dust removal cavity is formed inside the dust removal box (4); the dust removal bag (5) is installed inside the dust removal cavity, located above the inlet, with the opening of the dust removal bag (5) facing downwards; the dust removal fan (6) is installed inside the dust removal cavity, located above the dust removal bag (5).

2. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, The collection platform (1) includes several parallel grid strips (1.1), and the distance between adjacent grid strips (1.1) can be adjusted; each pair of adjacent grid strips (1.1) forms a group, and a collection groove is formed between the two grid strips (1.1) in each group.

3. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, The outlet can be one or more.

4. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1 or 3, characterized in that, Both the outlet and the inlet are provided with a tapered connecting short pipe (11). The large end of the connecting short pipe (11) is connected to the collection hood (2) or the dust removal box (4), and the small end is connected to the air duct (3).

5. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, Multiple dust collection bags (5) are installed on a partition (7) in the middle of the dust collection chamber. The openings of the dust collection bags (5) correspond one-to-one with the through holes (7.1) on the partition (7).

6. The negative pressure pulse dust removal device for laser grooving machines as described in claim 5, characterized in that, A keel is provided above the through hole (7.1) of the partition (7), and the dust bag (5) is fitted onto the keel.

7. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, A pulse dust collector is installed on the dust collection box (4), which is used to spray compressed air onto the dust collection bag (5).

8. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, The bottom of the dust removal chamber is provided with a dust collection groove (8), which is located directly below the opening of the dust removal bag (5).

9. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, The dust removal fan (6) is a variable frequency fan.

10. The negative pressure pulse dust removal device for laser grooving machines as described in claim 1, characterized in that, A silencer (9) is provided on the top of the dust collection box (4).

Images