A dust removal device of a large-format laser flat panel cutting machine

Abstract

The utility model relates to laser cutting equipment technical field discloses a dust collector of large -scale laser flat plate cutting machine, including the dust removal box that is equipped with the air inlet end and the air outlet end, the fan is butt -jointed and is arranged at the air outlet end, is provided with the filter screen in the dust removal box, is provided with the washing mechanism that can utilize the water flow to wash the filter assembly in the dust removal box, the washing mechanism includes the spray head assembly that sets up in the dust removal box and the water supply component that connects the spray head assembly, when using the dust collector in this scheme, the user only needs to open the spray head assembly when preparing to clean the dust removal box, utilizes the water flow to wash away the dust on the filter screen, and the dust mixes with water after entering the collection area, and it is not easy to produce secondary dust raising when cleaning, also can collect dust and centralized treatment through the filtration mode, compared with the prior art, the dust collector in this scheme can protect the user from the harm of secondary dust raising when cleaning the collection area of dust removal box, makes the dust collector more safe and environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting equipment technology, and in particular to a dust removal device for a large-format laser flatbed cutting machine. Background Technology

[0002] Chinese patent CN220679675U discloses a dust removal device for laser cutting. The device includes a dust collection box mounted on guide rails on both sides of a laser cutting machine. The dust collection box has an air inlet and an air outlet. The dust collection box is divided into a working area connected to the air outlet and a dust collection area connected to the air inlet. The working area is equipped with a fan and a filter plate for isolating the working area and the dust collection area. The dust collection area is equipped with a dust collection drawer. When the fan is working, it draws air from near the laser cutting machine's worktable into the dust collection box. The dust in the air is blocked by the filter screen. When the fan stops working, the dust falls into the dust collection drawer, thereby achieving the dust removal effect.

[0003] In the above scheme, operators need to clean the dust collection tray regularly to prevent excessive dust accumulation. However, when the dust collection tray is removed or emptied, the dust pile can easily generate secondary dust, which can harm the human body and the air. Utility Model Content

[0004] In view of the shortcomings of existing dust removal devices for laser cutting machines, which easily generate secondary dust when cleaning the dust collection tray, the purpose of this utility model is to provide a dust removal device for large-format laser flatbed cutting machines that does not easily generate secondary dust during cleaning.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A dust removal device for a large-format laser flatbed cutting machine includes a dust collection box, which is divided into a filtration area and a collection area. The filtration area is provided with an air inlet and an air outlet. A fan is connected to the air outlet. A filter screen is provided inside the dust collection box. A rinsing mechanism is provided inside the dust collection box that can use water flow to rinse the filter components. The rinsing mechanism includes a nozzle assembly installed inside the dust collection box and a water supply assembly connected to the nozzle assembly.

[0007] Using the above solution, when using the dust removal device, the user only needs to open the nozzle assembly when preparing to clean the dust collection box, and use the water flow to wash away the dust on the filter screen. After the dust enters the collection area, it mixes with the water, making it less likely to generate secondary dust during cleaning. The dust can also be collected and centrally treated through filtration. Compared with the existing technology, the dust removal device in this solution can protect the user from the harm of secondary dust when cleaning the collection area of ​​the dust collection box, making the dust removal device safer and more environmentally friendly.

[0008] Preferably, the filter screens are spaced at least two with different mesh sizes. The filter screens are arranged in order of distance from the air inlet and in order of mesh size from smallest to largest. Each filter screen is equipped with a set of nozzle assemblies.

[0009] Using the above scheme, the filter screens are arranged in a graded manner. The filter screen with a smaller mesh size is used to intercept large particles of debris, while the filter screen with a larger mesh size is used to intercept small particles of dust. This achieves graded interception, reduces the wear caused by large particles of debris impacting the filter screen with a larger mesh size, and also prevents the phenomenon of excessive dust accumulation on a single filter screen, which would lead to increased wind resistance.

[0010] Preferably, the filter screen is tilted downwards on the side facing the air inlet, and the nozzle assembly is located on the side of the filter screen facing away from the air inlet.

[0011] Using the above scheme, this scheme is the preferred scheme for filter screen setting. The side of the filter screen facing the air inlet is the interception area. When the water flows to wash the filter screen, some dust can be directly removed from the filter screen with the water flow, which can reduce the situation of dust remaining on the filter screen and increase the washing completion rate.

[0012] Preferably, the dust collector is divided into a filtration zone and a collection zone. The filtration zone is equipped with a drain outlet that connects to the collection zone. A guide plate is installed in the filtration zone to guide the water flow to the drain outlet, and the filter screen is located on the guide plate.

[0013] Preferably, the collection area is equipped with a collection cylinder with a screen facing the drain outlet, the bottom of the collection area is provided with a drain outlet for discharging wastewater, and the dust collection box is provided with a retrieval and placement structure for easy retrieval and placement of the collection cylinder.

[0014] Using the above scheme, the water flows into the drain after passing through the guide plate and then through the collection cylinder. The function of the guide plate is to guide the mixture of dust and water towards the collection area as much as possible, preventing a large amount of dust from remaining in the filtration area. During the above process, larger dust particles in the water will be intercepted by the collection cylinder for preliminary filtration. The remaining wastewater can be directly treated after discharge, eliminating the need for an additional pre-filtration step after wastewater discharge. Users need to remove the collection cylinder regularly for cleaning.

[0015] Preferably, the loading and unloading structure includes a loading and unloading port on the dust collection box, a cover plate for covering the loading and unloading port and sealing it with the loading and unloading port, a mounting bracket protruding from the end face of the cover plate for inserting the collection cylinder, and a mounting base fixedly installed in the collection area at the drain outlet for inserting and suspending the mounting bracket.

[0016] Using the above solution, the mounting base serves to suspend the mounting frame and the collection cylinder. When installing the cover plate, the cooperation between the mounting frame and the mounting base acts as a guide, guiding the collection cylinder to the position aligned with the drain outlet.

[0017] Preferably, an atomizing nozzle is provided inside the dust collection box between the air inlet and the filter screen, and the atomizing nozzle is connected to the water supply assembly.

[0018] Preferably, the water supply assembly includes a water tank and a water pump connected to the water tank, the nozzle assembly, and the atomizing nozzle via pipelines. The output end of the water pump is equipped with an electromagnetic reversing valve that is connected to the nozzle assembly and the atomizing nozzle respectively.

[0019] With the above solution, since the nozzle assembly is only rinsed before cleaning the collection area, dust that does not accumulate on the filter screen will float in the air during the rest of the time. The water flow from ordinary nozzles is difficult to capture the floating dust, resulting in dust flying in the air inside the dust collection box. Therefore, this solution adds an atomizing nozzle and uses an electromagnetic reversing valve to make the atomizing nozzle and nozzle assembly work alternately. The atomizing nozzle can atomize water and spray it into the filter area. The atomized droplets can combine with the dust floating in the air to form a wet clump. The wet clump is heavier and will not float in the air for a long time. It is more likely to stay on the filter screen or fall on the inner wall of the collection box. When the nozzle assembly is turned on, it can also rinse the inner wall of the collection box, making the dust removal and collection effect better.

[0020] Preferably, the dust collection box is fixedly installed on the side of the gantry of the laser cutting machine. The dust collection device also includes an air duct component installed on the crossbeam of the gantry and having several air inlets spaced apart. The air duct component is connected to the air inlet of the dust collection box.

[0021] By adopting the above solution, the air duct component covers the movement path of the laser cutting head on the gantry, which can suck up the debris and dust generated during cutting at close range, reduce the phenomenon of dust escape, and enhance the dust removal effect.

[0022] This utility model, by adopting the above technical solutions, has significant technical effects: When using the dust removal device in this solution, the user only needs to open the nozzle assembly when preparing to clean the dust collection box, and use the water flow to wash away the dust on the filter screen. After the dust enters the collection area, it mixes with the water, making it less likely to generate secondary dust during cleaning. Dust can also be collected and centrally processed through filtration. Compared with the prior art, the dust removal device in this solution can protect the user from the harm of secondary dust when cleaning the collection area of ​​the dust collection box, making the dust removal device safer and more environmentally friendly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of a dust removal device for a large-format laser flatbed cutting machine installed on an injection molding machine according to this embodiment;

[0024] Figure 2This is a schematic diagram of the internal structure of a dust removal device for a large-format laser flatbed cutting machine installed on an injection molding machine according to this embodiment;

[0025] Figure 3 This is a top view of a dust removal device for a large-format laser flatbed cutting machine according to this embodiment;

[0026] Figure 4 yes Figure 3 A sectional view of AA in the middle;

[0027] Figure 5 yes Figure 4 A magnified view of a portion of A1;

[0028] Figure 6 This is a schematic diagram of the structure of the mounting strip in a dust removal device for a large-format laser flatbed cutting machine according to this embodiment;

[0029] Figure 7 This is a schematic diagram showing the disassembled state of a dust removal device for a large-format laser flatbed cutting machine according to this embodiment;

[0030] Figure 8 yes Figure 7 A magnified view of the portion related to B in the image;

[0031] Figure 9 This is a schematic diagram of the pick-and-place structure in a dust removal device for a large-format laser flatbed cutting machine according to this embodiment.

[0032] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Dust collection box; 101. Filter area; 1011. Air inlet; 1012. Air outlet; 102. Collection area; 2. Duct components; 201. Air inlet; 3. Fan; 4. Support frame; 5. Filter screen; 6. Nozzle assembly; 7. Atomizing nozzle; 8. Water tank; 9. Water pump; 10. Solenoid reversing valve; 11. Gas-liquid mixing chamber; 1101. Liquid inlet; 1102. Gas inlet; 12. Drain outlet; 13. Guide plate; 14. Mounting strip; 1401. Notch; 15. Collection cylinder; 16. Loading / unloading port; 17. Cover plate; 1701. Sealing strip; 18. Mounting bracket; 19. Mounting base; 1901. Through hole; 1902. Slot. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0034] Example

[0035] A dust removal device for a large-format laser flatbed cutting machine, according to Figure 1 , 2As shown, the device includes a dust collection box 1 and an air duct component 2. The dust collection box 1 is divided into a filtration area 101 and a collection area 102. The filtration area 101 is provided with an air inlet 1011 and an air outlet 1012. The air outlet 1012 is connected to a fan 3. The air inlet 1011 is connected to the air duct component 2. The air duct component 2 is provided with several air inlets 201 spaced apart. The dust collection box 1 is fixedly installed on the side of the gantry of the laser cutting machine. The side wall of the gantry is provided with a support frame 4 for reinforcing the dust collection box 1. The air duct component 2 is fixedly installed on the crossbeam of the gantry and the air inlets 201 face the worktable. When the laser cutting machine is working, the dust collection device can move synchronously.

[0036] The filtration zone 101 is equipped with a filter screen 5 and a rinsing mechanism that can use water flow to rinse the filter screen 5. Figure 4 , 5 As shown, the rinsing mechanism includes a nozzle assembly 6 disposed in the dust collection box 1, and a water supply assembly for supplying water to the nozzle assembly 6. Two filters 5 are provided, each with a different mesh count. The filter 5 with a smaller mesh count is located between the filter 5 with a larger mesh count and the air inlet 1011. The filter 5 is tilted downwards on the side facing the air inlet 1011. Two sets of nozzle assemblies 6 are provided, each located on the side of each filter 5 facing away from the air inlet 1011. In this embodiment, the angle between the filter 5 and the inner top wall of the dust collection box 1 is approximately 70°. The filter 5 is made of stainless steel. The filter 5 near the air inlet 1011 has a mesh count of 200, and the other filter 5 has a mesh count of 600.

[0037] Inside the dust collector 1, between the air inlet 1011 and the filter 5, there is an atomizing nozzle 7. The atomizing nozzle 7 is connected to the water supply assembly. Figure 4 , 6 As shown, in this embodiment, the water supply assembly includes a water tank 8, which is connected to a water pump 9. The output end of the water pump 9 is connected to an electromagnetic reversing valve 10. The nozzle assembly 6 is connected to one of the output ends of the electromagnetic reversing valve 10. The input end of the atomizing nozzle 7 is provided with a gas-liquid mixing chamber 11. The liquid inlet 1101 of the gas-liquid mixing chamber 11 is connected to the other output end of the electromagnetic reversing valve 10. The gas inlet 1102 of the gas-liquid mixing chamber 11 is connected to the gas source pipeline of the workshop through a gas supply pipe. In this embodiment, a gas-assisted atomizing nozzle 7 is used. When water is input into the gas-liquid mixing chamber 11, it will be torn apart by the high-speed airflow to achieve atomization. The atomized particles obtained by this method are relatively uniform in size and have a faster initial velocity when sprayed, which can spread and fill the filter area 101 more quickly and accelerate the combination speed of small droplets and dust.

[0038] according to Figure 4 , 5As shown, the filtration zone 101 is provided with a drain outlet 12 connecting to the collection zone 102. A guide plate 13 is installed within the filtration zone 101 to guide the water flow towards the drain outlet 12. The filter screen 5 is located on the guide plate 13. Mounting strips 14 for inserting the edges of the filter screen 5 are fixedly installed on the guide plate 13 and the inner wall of the top of the dust collection box 1, respectively. Figure 6 As shown, in this embodiment, the bottom of the mounting strip 14 located on the guide plate 13 is provided with a notch 1401 for water to flow through.

[0039] The collection area 102 is equipped with a collection cylinder 15 with a screen, which is directly opposite the drain outlet 12. A drain outlet (not shown in the attached diagram) is located at the bottom of the collection area 102. The drain outlet is used to discharge filtered wastewater. The dust collector 1 is equipped with a mechanism for easy access to the collection cylinder 15. Figure 7 , 8 As shown in Figures 9 and 1, the loading and unloading structure includes a loading and unloading port 16 on the dust collection box 1. A cover plate 17 is provided at the loading and unloading port 16. The cover plate 17 can cover the loading and unloading port 16 and is sealed to it. In this embodiment, a handle is provided on the outside of the cover plate 17. Stepped surfaces are formed on the cover plate 17 and the loading and unloading port 16, so that the cover plate 17 can be partially inserted into the loading and unloading port 16. A sealing strip 1701 is provided on the outer wall of the part of the cover plate 17 inserted into the loading and unloading port 16. When the cover plate 17 is inserted into the loading and unloading port 16, the sealing strip 1701 presses against the inner wall of the loading and unloading port 16 to form a seal. The cover plate 17 has a protruding mounting bracket 18 for the collection cylinder 15 to be inserted. The mounting bracket 18 is fixedly connected to the cover plate 17 by bolts. The collection area 102 is fixedly provided with a mounting seat 19 directly opposite the drain outlet 12. In this embodiment, the mounting seat 19 is welded to the bottom of the partition plate between the filter area 101 and the collection area 102 and is directly opposite the drain outlet 12. The mounting seat 19 has a through hole 1901 for water to flow through. The two sides of the mounting seat 19 are bent inward to form slots 1902 for the mounting bracket 18 to be inserted. The mounting bracket 18 can be inserted and suspended on the mounting seat 19.

[0040] Based on the above structure, refer to Figures 1-9 It can be seen that the working process of the dust removal device of a large-format laser flatbed cutting machine in this solution is as follows:

[0041] When the laser cutting machine is working, both the fan 3 and the water pump 9 are in operation. The electromagnetic reversing valve 10 is switched to connect with the atomizing nozzle 7. The water mist sprayed by the atomizing nozzle 7 captures dust and forms a wet mass that will remain on the filter screen 5 or the inner wall of the dust collection box 1.

[0042] When the laser cutting machine stops working, the fan 3 stops working, the water pump 9 is in working state, the electromagnetic reversing valve 10 switches to connect with the nozzle assembly 6, the nozzle assembly 6 sprays water to flush the filter screen 5 and the inner wall of the dust collection box 1, the dust flows with the water to the drain outlet 12 and is filtered by the collection cylinder 15. After flushing is completed, the water pump 9 is turned off, the cover plate 17 is pulled out and the collection cylinder 15 is removed for cleaning.

[0043] The dust removal device of the large-format laser flatbed cutting machine in this embodiment can protect users from secondary dust when cleaning the collection area 102 of the dust removal box 1, making the dust removal device safer and more environmentally friendly.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dust removal device for a large-format laser flatbed cutting machine, comprising a dust collection box (1), wherein the dust collection box (1) is divided into a filtration zone (101) and a collection zone (102), the filtration zone (101) is provided with an air inlet (1011) and an air outlet (1012), a fan (3) is connected to the air outlet (1012), and a filter screen (5) is provided inside the dust collection box (1), characterized in that: The dust collection box (1) is equipped with a flushing mechanism that can use water flow to flush the filter components. The flushing mechanism includes a nozzle assembly (6) installed in the dust collection box (1) and a water supply assembly connected to the nozzle assembly (6).

2. The dust removal device for a large-format laser flatbed cutting machine according to claim 1, characterized in that: The filter screens (5) are spaced at least two with different mesh sizes. The filter screens (5) are arranged in order from near to far from the air inlet (1011) and in order from small to large mesh size. Each filter screen (5) is equipped with a set of nozzle assemblies (6).

3. The dust removal device for a large-format laser flatbed cutting machine according to claim 1, characterized in that: The filter screen (5) is tilted downwards on the side facing the air inlet (1011), and the nozzle assembly (6) is located on the side of the filter screen (5) facing away from the air inlet (1011).

4. The dust removal device for a large-format laser flatbed cutting machine according to claim 1, characterized in that: The filtration zone (101) is provided with a drain outlet (12) that connects to the collection zone (102). A guide plate (13) is provided in the filtration zone (101) to guide the water flow to the drain outlet (12). The filter screen (5) is located on the guide plate (13).

5. The dust removal device for a large-format laser flatbed cutting machine according to claim 4, characterized in that: The collection area (102) is equipped with a collection cylinder (15) with a screen and facing the drain outlet (12). The bottom of the collection area (102) is provided with a drain outlet for discharging wastewater. The dust collector (1) is provided with a retrieval and placement structure for easy retrieval and placement of the collection cylinder (15).

6. The dust removal device for a large-format laser flatbed cutting machine according to claim 5, characterized in that: The loading and unloading structure includes a loading and unloading port (16) opened on the dust collection box (1), a cover plate (17) for covering the loading and unloading port (16) and sealingly fitting with the loading and unloading port (16), a mounting bracket (18) protruding from the end face of the cover plate (17) for the collection cylinder (15) to be inserted, and a mounting seat (19) fixedly installed in the collection area (102) at the drain outlet (12) for the mounting bracket (18) to be inserted and suspended.

7. The dust removal device for a large-format laser flatbed cutting machine according to claim 1, characterized in that: Atomizing nozzle (7) is provided inside the dust collection box (1) between the air inlet (1011) and the filter screen (5), and the atomizing nozzle (7) is connected to the water supply assembly.

8. The dust removal device for a large-format laser flatbed cutting machine according to claim 7, characterized in that: The water supply assembly includes a water tank (8) and a water pump (9) that is connected to the water tank (8), the nozzle assembly (6) and the atomizing nozzle (7) respectively via pipelines. The output end of the water pump (9) is equipped with an electromagnetic reversing valve (10) that is connected to the nozzle assembly (6) and the atomizing nozzle (7) respectively.

9. The dust removal device for a large-format laser flatbed cutting machine according to claim 1, characterized in that: The dust collection box (1) is fixedly installed on the side of the gantry of the laser cutting machine. The dust collection device also includes a duct component (2) installed on the crossbeam of the gantry and with several air inlets (201) spaced apart. The duct component (2) is connected to the air inlet end (1011) of the dust collection box (1).

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