Dust extraction device and laser processing equipment

Abstract

The utility model discloses a dust extraction device and laser processing equipment. The dust extraction device comprises a frame, a base, a first air knife and an air suction assembly, and an air channel is formed in the frame; the base is arranged on the frame, and a through hole is formed in the base; the first air knife is arranged on the base and located on one side of the through hole, and the first air knife is provided with an air outlet. The air suction assembly comprises an air suction piece arranged on one side of the through hole and facing the air outlet, and a connecting pipe connecting the air suction piece and the frame, and the connecting pipe communicates with the air suction piece and the air knife. The laser beam can be emitted from the through hole, the first air knife can form an air curtain at the through hole, smoke dust is prevented from entering the through hole, meanwhile, smoke can be blown to the air suction piece right opposite to the first air knife, and the smoke dust suction efficiency can be further improved.

Description

Technical Field

[0001] This application relates to the field of laser devices, and particularly to a dust extraction device and a laser processing device. Background Art

[0002] Dust extraction devices are usually applied inside equipment to extract the dust generated during processing. The principle is to use air negative pressure to suck the dust and dirt in a certain area. Some laser devices use laser stripping technology to strip the material on the surface of the workpiece, and at the same time, a certain amount of dust will be generated during the stripping process. In related technologies, the effect of some dust extraction devices is limited, and the generated smoke and dust will still enter the laser optical path and contaminate the optical lenses. Utility Model Content

[0003] This application provides a dust extraction device and a laser processing device, which can effectively recover the smoke and dust and avoid the smoke and dust from contaminating the optical lenses.

[0004] This application provides a dust extraction device, including:

[0005] A frame, inside which an air duct is provided;

[0006] A base, provided on the frame, and a through hole is provided on the base;

[0007] A first air knife, provided on the base and located on one side of the through hole, and the first air knife has an air outlet;

[0008] An air suction assembly, including an air suction member provided on one side of the through hole and facing the air outlet, and a connecting pipe connecting the air suction member and the frame, and the connecting pipe communicates the air duct and the air suction member.

[0009] In some embodiments, the dust extraction device further includes a second air knife, the second air knife is provided on the side of the base away from the first air knife, and the blowing direction of the first air knife faces the through hole.

[0010] In some embodiments, the air suction member has an air suction port, the air suction port is arranged in a long strip shape and faces the air outlet.

[0011] In some embodiments, the air suction assembly includes a plurality of the connecting pipes, the connecting pipes are provided at the end of the air suction member away from the air suction port and are arranged along the length direction of the air suction port.

[0012] In some embodiments, the dust extraction device further includes a light shielding member provided at the through hole, and a driving member for driving the light shielding member to move to block the through hole.

[0013] In some embodiments, the light-shielding member includes a light-shielding plate slidably disposed on the base, the light-shielding plate is located on a side of the base away from the first air knife, and the driving member includes an electric cylinder drivingly connected to the light-shielding plate.

[0014] In some embodiments, the dust extraction device further includes a distance measuring sensor disposed on the base, and the detection direction of the distance measuring sensor is vertically downward.

[0015] In some embodiments, a bracket is provided on the base, and two ends of the first air knife are respectively rotatably connected to the bracket, and the included angle between the air outlet direction of the first air knife and the base is adjustable.

[0016] In some embodiments, the connecting pipe is disposed near one side edge of the frame, and an interface communicating with the air duct is further provided on the frame, and the interface is disposed away from the connecting pipe.

[0017] In some embodiments, the dust extraction device further includes a second air knife, the second air knife is disposed on a side of the base away from the first air knife, and the air blowing direction of the first air knife faces the through hole.

[0018] The present application also provides a laser processing device, including the above-mentioned dust extraction device and a frame for mounting the dust extraction device.

[0019] The dust extraction device in the present application includes a frame, a base, a first air knife and a suction assembly. A air duct is provided inside the frame; the base is disposed on the frame, and a through hole is provided on the base; the first air knife is disposed on the base and is located on one side of the through hole, and the first air knife has an air outlet; the suction assembly includes a suction member disposed on one side of the through hole and facing the air outlet, and a connecting pipe connecting the suction member and the frame, and the connecting pipe communicates the air duct and the suction member. The laser beam can be emitted from the through hole, and the first air knife can form an air curtain at the through hole to prevent smoke and dust from entering the through hole. At the same time, the smoke can be blown towards the suction member facing the first air knife, which can further improve the suction efficiency of the smoke and dust. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the dust extraction device in an embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of the dust extraction device in another embodiment of the present application.

[0022] Label Description:

[0023] 10. Frame; 11. Base; 12. Interface; 13. Through hole; 21. First air knife; 22. Second air knife; 23. Bracket; 24. Sensor; 31. Suction member; 32. Connecting pipe; 41. Light-shielding member; 42. Driving member.

[0024] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0025] Next, the solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments in this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of this application are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If this specific posture changes, then the directional indications will also change accordingly.

[0027] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be a middle element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time.

[0028] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] This application proposes a dust extraction device, referring to Figure 1 and Figure 2The dust extraction device comprises: a frame 10, wherein an air duct is provided inside the frame 10; a base 11, which is arranged on the frame 10, wherein a through hole 13 is provided on the base 11; a first air knife 21, which is arranged on the base 11 and is located at one side of the through hole 13, wherein the first air knife 21 has an air outlet; an air suction component, comprising an air suction member 31 which is arranged at one side of the through hole 13 and is arranged toward the air outlet, and a connecting pipe 32 which connects the air suction member 31 and the frame 10, wherein the connecting pipe 32 connects the air duct and the air suction member 31. In this embodiment, the laser beam can be emitted from the through hole 13, and the first air knife 21 can form a wind curtain at the through hole 13 to prevent smoke and dust from entering the through hole 13, and at the same time, the smoke and dust can be blown toward the air suction member 31 which is directly facing the first air knife 21, thereby further accelerating the efficiency of smoke and dust suction. In addition, the dust extraction device can be connected to an external vacuum pump through the frame 10. The frame 10 with an air duct can also be used to transmit smoke and dust, avoiding the installation of messy pipelines in the device, and the overall structure of the device is more regular.

[0030] In some embodiments, reference Figure 1 and Figure 2 The air suction member 31 has an air suction port, which is arranged in a long strip shape and faces the air outlet. The long strip air suction port can cover a larger area and can absorb the scattered smoke and dust. Of course, the air suction member 31 can also be arranged in a bell-mouth shape, and the bell-mouth is the above-mentioned air suction port. In addition, the air suction component includes a plurality of connecting pipes 32, which are arranged at the end of the air suction member 31 away from the air suction port and are arranged along the length direction of the air suction port. The provision of a plurality of connecting pipes 32 can ensure that the flow velocity at each part of the air suction port remains basically consistent, so that the smoke and dust can be evenly absorbed at each part of the air suction port, reducing the amount of smoke and dust escaping in the two end areas.

[0031] In some embodiments, reference Figure 1 and Figure 2 , the dust extraction device also includes a light shielding member 41 disposed at the through hole 13, and a driving member 42 for driving the light shielding member 41 to move so as to shield the through hole. In this embodiment, the light shielding member 41 includes a light shielding plate slidably disposed on the base 11, the light shielding plate is located on the side of the base 11 away from the first wind knife 21, and the driving member 42 includes an electric cylinder drivingly connected to the light shielding plate. The light shielding member 41 can be two light shielding plates slidably disposed at the through hole 13, and the two light shielding plates can be driven to open and close by a clamping cylinder to open or cover the through hole 13, and of course can also be driven by an electric cylinder. Alternatively, the transmission is carried out through other transmission mechanisms, such as setting a screw with different rotation directions at both ends, and correspondingly setting two nuts adapted to the screw, the two nuts respectively corresponding to the two light shielding plates, and the two light shielding plates can also be driven to open and close by driving the screw to rotate by a motor. The light shielding member 41 and the driving member 42 can ensure that the through hole 13 remains closed in the non-processing state to prevent smoke or other impurities from entering the laser light path above.

[0032] In some embodiments, reference Figure 1 andFigure 2 The dust extraction device further includes a ranging sensor 24 disposed on the base 11, and the detection direction of the ranging sensor 24 is vertically downward. The ranging sensor 24 can be an optical type or an acoustic wave type, and it includes a transmitting end and a receiving end. The transmitting end emits signals downward, and the receiving end receives the signals reflected back by the machine table below. The distance value can be obtained according to the time used in the transmitting and receiving processes to determine the distance between the execution end and the machine table.

[0033] In some embodiments, referring to Figure 1 and Figure 2 , a bracket 23 is provided on the base 11, and both ends of the first air knife 21 are rotatably connected to the bracket 23. The included angle between the air outlet direction of the first air knife 21 and the base 11 is adjustable. In this embodiment, the through hole 13 can also be set as a long strip hole. The first air knife 21 is arranged along the length direction of the long strip hole, and both ends of the first air knife 21 are provided with rotating shafts, which are rotatably connected to the bracket 23. Rotating the first air knife 21 can adjust the above-mentioned included angle to ensure that the soot is blown towards the suction member 31 by the air curtain as much as possible, ensuring a better dust extraction effect.

[0034] In some embodiments, referring to Figure 1 and Figure 2 , the connecting pipe 32 is arranged near one side edge of the frame 10. An interface 12 communicating with the air duct is also provided on the frame 10, and the interface 12 is arranged away from the connecting pipe 32. In this embodiment, the frame 10 can be a square frame 10, which can be specifically formed by welding or splicing square pipes, and the above-mentioned air duct is formed inside. The through hole 13 is located in the center of the frame 10, and the suction member 31 is arranged close to the through hole 13. One end of the connecting pipe 32 is connected to the suction member 31, and the other end extends towards the frame 10 and communicates with the air duct. The interface 12 is arranged at one end of the frame 10 away from the connecting pipe 32. After the soot is sucked into the air duct, it can be transported to the interface 12 in two ways. At the same time, for the frame 10 constructed by square pipes, its air duct cross-section is relatively large, which is beneficial to the transmission of soot. Of course, the suction assembly further includes a negative pressure generator communicating with the above-mentioned interface 12. The negative pressure generator can be a suction pump, and the suction pump is communicated with the interface 12 through an air pipe. The interface 12 can be a round pipe arranged on the frame 10, and the air pipe can be sleeved outside the round pipe and tightened by a clamp. The interface 12 can also be a quick-connect interface 12, and a quick-connect joint adapted to it is provided at the end of the air pipe for easy disassembly and maintenance. In addition, the dust extraction device can be installed and connected to other components through the frame 10. Setting the frame 10 with an air duct can also be used to transmit soot, avoiding the arrangement of messy pipelines in this device.

[0035] In some embodiments, referring to Figure 1 and Figure 2, the dust extraction device further includes a second air knife 22. The second air knife is arranged on the side of the base 11 away from the first air knife, and the blowing direction of the first air knife faces the through hole 13. The arrangement of the second air knife 22 causes the air flow to blow outwards from the through hole 13. Even if there is dust escaping to the through hole 13, it can be blocked by the air flow blown out by the second air knife 22, further improving the anti-pollution performance of the dust extraction device.

[0036] This application also proposes a laser processing device. Referring to Figure 1 and Figure 2 , the laser processing device includes the above-mentioned dust extraction device and a frame for installing the dust extraction device. In addition, the laser processing device further includes a machine table arranged below the dust extraction device and a conveying device arranged on the machine table. The conveying device can be used to convey workpieces. During glass processing, the conveying device can drive the workpiece to move in the horizontal direction so that the above-mentioned sensor 24 can measure the distance to the surface of the workpiece, ensuring that the workpiece is placed horizontally, and avoiding inconsistent thickness of the material peeled off during laser peeling.

[0037] In the embodiment of this application, the specific working principle of the dust extraction device is as follows:

[0038] The dust extraction device in this application includes a frame 10, a base 11, a first air knife 21 and a suction assembly. Among them, there is an air duct inside the frame 10; the base 11 is arranged on the frame 10, and there is a through hole 13 on the base 11; the first air knife 21 is arranged on the base 11 and is located on one side of the through hole 13, and the first air knife 21 has an air outlet; the suction assembly includes a suction member 31 arranged on one side of the through hole 13 and facing the air outlet, and a connecting pipe 32 connecting the suction member 31 and the frame 10. The air duct communicated by the connecting pipe 32 and the suction member 31. The laser beam can be emitted from the through hole 13. The first air knife 21 can form an air curtain at the through hole 13 to prevent dust from entering the through hole 13. At the same time, it can also blow the smoke towards the suction member 31 facing the first air knife 21, which can further improve the dust suction efficiency.

[0039] The above are only partial or preferred embodiments of this application. Whether in terms of text or drawings, the scope of protection of this application cannot be limited thereby. Any equivalent structural transformation made using the content of the specification and drawings of this application under the overall concept of this application, or any direct / indirect application in other related technical fields is included in the scope of protection of this application.

Claims

1. A dust extraction device, characterized in that, Comprising: A frame, within which an air duct is provided; A base, provided on the frame, and having a through-hole on the base; A first air knife, provided on the base and located on one side of the through-hole, the first air knife having an air outlet; An air suction assembly, including a suction member provided on one side of the through-hole and facing the air outlet, and a connecting pipe connecting the suction member and the frame, the connecting pipe communicating the air duct and the suction member.

2. The dust extraction device according to claim 1, characterized in that, The dust extraction device further includes a second air knife, which is provided on the side of the base away from the first air knife, and the blowing direction of the first air knife faces the through-hole.

3. The dust extraction device according to claim 1, wherein, The suction member has a suction port, the suction port is arranged in a long strip shape and faces the air outlet.

4. The dust extraction device according to claim 3, characterized in that, The air suction assembly includes a plurality of the connecting pipes, the connecting pipes are provided at the end of the suction member away from the suction port and are arranged along the length direction of the suction port.

5. The dust extraction device according to claim 1, characterized in that, The dust extraction device further includes a light-shielding member provided in the through-hole, and a driving member for driving the light-shielding member to move to block the through-hole.

6. The dust extraction device according to claim 5, characterized in that, The light-shielding member includes a light-shielding plate slidably provided on the base, the light-shielding plate is located on the side of the base away from the first air knife, and the driving member includes an electric cylinder drivingly connected to the light-shielding plate.

7. The dust extraction device according to claim 1, wherein The dust extraction device further includes a distance measuring sensor provided on the base, and the detection direction of the distance measuring sensor is vertically downward.

8. The dust extraction device according to claim 1, characterized in that, A bracket is provided on the base, and both ends of the first air knife are rotatably connected to the bracket, and the included angle between the air outlet direction of the first air knife and the base is adjustable.

9. The dust extraction device according to claim 1, characterized in that, The connecting pipe is provided at the edge of the side close to the frame, and an interface communicating with the air duct is further provided on the frame, and the interface is arranged away from the connecting pipe.

10. A laser processing device, characterized in that, Comprising the dust extraction device according to any one of claims 1 to 9, and a machine frame for installing the dust extraction device.

Images