Dust removal device for plasma cutting

Abstract

The utility model discloses a dust removal device for plasma cutting, which relates to the technical field of plasma cutting and comprises a dust collection frame, a plurality of dust collection grooves are arranged in the dust collection frame, round holes are symmetrically arranged on two sides of each dust collection groove, a positive pressure fan is connected in the round hole on one side of one dust collection groove, and a negative pressure fan is connected in the round hole on the other side of the dust collection groove. Wherein a negative pressure dust suction pipe is connected into the circular hole in the other side of one dust suction groove, the end of the negative pressure dust suction pipe is connected with a negative pressure collector, an auxiliary mechanism matched with the dust suction grooves is arranged on the side wall of one side of the dust suction frame in a penetrating mode, and a steel plate is arranged at the top of the dust suction frame. The dust removal device is reasonable and reliable in structure and simple to operate, the guide plate can be replaced and cleaned under the action of the auxiliary assembly, and the phenomenon that smoke dust attachments on the surface of the guide plate affect subsequent flow guide work and follow-up airflow trend after long-time use is avoided, so that the dust removal efficiency of the dust removal device is improved, the convenience is improved, and the dust removal efficiency is improved. And the adaptability is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to plasma cutting technical field, concretely related to a dust collector for plasma cutting. BACKGROUND

[0002] Plasma cutting is a processing method that utilizes the heat of high-temperature plasma arc to melt or partially melt the metal at the cutting edge of a workpiece (and evaporate it), and uses the momentum of high-speed plasma to remove molten metal to form a cut. Plasma cutting machines can cut various metals that are difficult to cut with oxygen cutting, especially non-ferrous metals (stainless steel, carbon steel, aluminum, copper, titanium, and nickel), with better cutting effect. However, in the cutting process, a large amount of smoke and dust is generated, which pollutes the air environment of the workshop and has a negative impact on the health of workers. However, the existing dust removal device for plasma cutting is not convenient to adjust the angle of the guide plate according to the amount of smoke and dust, and after a long time of dust removal, the surface of the guide plate is easy to attach smoke and dust, which is not convenient to replace and clean the guide plate, which may affect the direction of the airflow, and it is not convenient to absorb the welding slag to prevent burns or fires, thereby reducing the dust removal efficiency.

[0003] For example, Chinese patent CN212734722U discloses a dust removal device for a plasma cutting machine, which includes a sliding block, a cutting machine body, and a cabinet. The surface of the cutting machine body is fixedly installed with a guide rail, the outer periphery of the guide rail is movably installed with a gantry, the sliding block is slidably installed on the outer periphery of the guide rail on one side of the gantry, the top of the sliding block is fixedly installed with a wind box, the bottom of the gantry is fixedly installed with the cabinet, the surface of the cabinet is movably installed with a door, the inside of the cabinet is fixedly installed with a fan, the inside of the fan and the wind box is fixedly installed with a wind pipe, and the bottom of the fan is fixedly installed with an activated carbon filter.

[0004] The dust removal device for the plasma cutting machine has the following disadvantages: although the wind box can expand the air inlet of the wind pipe during use to collect dust, it is not convenient to adjust the angle of the guide plate according to the amount of smoke and dust, and after a long time of dust removal, the surface of the guide plate is easy to attach smoke and dust, which may affect the direction of the airflow, and it is not convenient to absorb the welding slag to prevent burns or fires, thereby reducing the dust removal efficiency.

[0005] Currently, there is no effective solution to the problems in the related art. UTILITY MODEL CONTENT

[0006] In view of the problems in the related art, the utility model provides a dust removal device for plasma cutting to overcome the above technical problems existing in the prior art.

[0007] Therefore, the utility model adopts the following specific technical solutions:

[0008] The dust removal device for plasma cutting comprises a dust suction frame, a plurality of dust suction grooves are formed in the dust suction frame, circular holes are symmetrically formed on both sides of the dust suction grooves, a positive pressure fan is connected to one of the circular holes, a negative pressure dust suction pipe is connected to the other circular hole, an end of the negative pressure dust suction pipe is connected to a negative pressure collector, an auxiliary mechanism is arranged through the side wall of the dust suction frame and matched with the dust suction grooves, and a steel plate is arranged on the top of the dust suction frame.

[0009] Further, under the action of the auxiliary mechanism, the angle of the guide plate can be adjusted according to the amount of smoke dust, so that the guide plate can guide and turbulate the smoke dust, thereby stabilizing the airflow direction and improving the dust removal efficiency of the dust removal device.

[0010] Further, under the action of the auxiliary mechanism, the angle of the guide plate can be adjusted according to the amount of smoke dust, so that the guide plate can guide and turbulate the smoke dust, thereby stabilizing the airflow direction and improving the dust removal efficiency of the dust removal device.

[0011] The dust removal device has the advantages that:

[0012] The utility model has reasonable and reliable structure and simple operation. The object to be cut is placed on the steel plate, and the steel plate is placed on the dust suction trough, and the object can be cut. During the cutting process, welding slag and smoke are generated. The positive pressure fan and the negative pressure collector are turned on by the external controller. The air volume of the positive pressure fan is very small, which acts as the distribution air for the negative pressure collector. In this way, the smoke can be sucked into the dust suction trough under the negative pressure environment in the dust suction trough. In addition, a layer of water is laid on the inner bottom of the dust suction trough, which can prevent welding slag from splashing and can also absorb part of the welding smoke. Under the action of the auxiliary mechanism, the angle of the guide plate can be adjusted according to the amount of smoke, so as to play the role of guiding and turbulent flow for the smoke. At the same time, under the action of the auxiliary component, the guide plate can be replaced and cleaned to avoid the smoke and dust attachment on the surface of the guide plate affecting the subsequent guiding work and the direction of the continuous airflow after long-term use, thereby improving the dust removal efficiency of the dust removal device, improving convenience and wider adaptability.

[0013] 2. By setting up an auxiliary mechanism, when it is necessary to adjust the angle of the guide plate, the servo motor is started through the external controller to drive the rotating shaft to rotate. Under the action of the rotation of the rotating shaft, the worm is driven to rotate. Under the action of the rotation of the worm, the worm drives the worm wheel to rotate. The rotation of the worm wheel drives the rotating shaft to rotate. Under the action of the rotating shaft, the auxiliary component drives the guide plate to rotate. Therefore, the angle of the guide plate can be adjusted according to the amount of smoke and dust required, so that the smoke and dust can be guided and turbulent, thereby stabilizing the direction of the airflow and improving the dust removal efficiency of the dust removal device.

[0014] 3. By setting up an auxiliary component, when the guide plate needs to be fixed, the side walls at both ends of the guide plate are brought into contact with one side wall of the connecting block, and then the pressure plate is released. Under the rebound of the spring and the rotation of the rotating rod, the end of the limiting column is inserted into the limiting hole and conflicts with the inside of the limiting hole, thereby completing the fixed installation of the guide plate. When the guide plate needs to be removed, by pressing one end of the pressure plate, the end of the limiting column leaves the limiting hole under the compression of the spring and the rotation of the rotating rod, and then the guide plate is removed, and the guide plate can be replaced and cleaned, thereby avoiding the phenomenon that smoke and dust attachments on the surface of the guide plate affect the subsequent diversion work and the direction of the continuous airflow after long-term use, thereby improving the convenience of the dust removal device and making it more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1is a perspective view of a dust removal device for plasma cutting according to an embodiment of the present application;

[0017] Figure 2 is another angle perspective view of a dust removal device for plasma cutting according to an embodiment of the present application;

[0018] Figure 3 is a structure schematic view of an auxiliary mechanism in a dust removal device for plasma cutting according to an embodiment of the present application;

[0019] Figure 4 is Figure 3 is a local enlarged view at A in the figure;

[0020] Figure 5 is a sectional view of an auxiliary mechanism in a dust removal device for plasma cutting according to an embodiment of the present application;

[0021] Figure 6 is a structure schematic view of an auxiliary assembly in a dust removal device for plasma cutting according to an embodiment of the present application;

[0022] Figure 7 is a three-dimensional assembly view of an auxiliary assembly in a dust removal device for plasma cutting according to an embodiment of the present application;

[0023] Figure 8 is a structure schematic view of a flow guide plate in a dust removal device for plasma cutting according to an embodiment of the present application.

[0024] in the figure:

[0025] 1, dust absorption frame; 2, dust absorption groove; 3, circular hole; 4, positive pressure fan; 5, negative pressure dust absorption pipe; 6, negative pressure collector; 7, auxiliary mechanism; 701, limiting plate; 702, servo motor; 703, rotating shaft; 704, limiting rod; 705, driving piece; 7051, mounting block; 7052, mounting cavity; 7053, worm; 7054, worm gear; 706, rotating shaft; 707, auxiliary assembly; 7071, fixing piece; 70711, connecting block; 70712, fixed block; 70713, mounting hole; 7072, dismounting piece; 70721, through hole; 70722, pressing plate; 70723, spring; 70724, convex plate; 70725, rotating rod; 70726, limiting hole; 70727, limiting column; 708, flow guide plate; 8, steel plate. DETAILED DESCRIPTION

[0026] To further illustrate the embodiments, the utility model provides with the drawings, these drawings are part of the utility model disclosure, it is mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0027] According to the embodiment of the utility model, a dust removal device for plasma cutting is provided.

[0028] The utility model is further illustrated in combination with the drawings and specific embodiments, as Figures 1-8 The dust removal device for plasma cutting according to the embodiment of the utility model, as shown in the drawings, includes dust collection frame 1, and is characterized in that a plurality of dust collection grooves 2 are formed in the dust collection frame 1, a layer of water is laid at the inner bottom of the dust collection groove 2 in specific application, not shown in the drawing, a circular hole 3 is symmetrically formed at both sides of the dust collection groove 2, a positive pressure fan 4 is connected in the circular hole 3 at one side of one of the dust collection grooves 2, a negative pressure dust collection pipe 5 is connected in the circular hole 3 at the other side of one of the dust collection grooves 2, a negative pressure collector 6 is connected at the end of the negative pressure dust collection pipe 5, an auxiliary mechanism 7 matched with the dust collection groove 2 is through-set at one side wall of the dust collection frame 1, and a steel plate 8 is arranged at the top of the dust collection frame 1.

[0029] In addition, the structure and working principle of the positive pressure fan 4, the negative pressure dust collection pipe 5, the negative pressure collector 6, the servo motor 702 and the external controller are all prior art, which will not be described in detail here.

[0030] In one embodiment, for the auxiliary mechanism 7 described above, the auxiliary mechanism 7 comprises limiting plates 701 symmetrically arranged on both sides of one end of the dust collection frame 1, one side of one of the limiting plates 701 is provided with a servo motor 702 penetratingly arranged, the output end of the servo motor 702 is connected with a rotating shaft 703, the bottoms of the two limiting plates 701 are connected through a limiting rod 704, the circumferential outer portions of the rotating shaft 703 and the limiting rod 704 are both sleeved with a plurality of driving pieces 705, one end of each of the driving pieces 705 is connected with a plurality of rotating shafts 706 penetratingly arranged through the side wall of one end of the dust collection frame 1, one end of each of the two rotating shafts 706 is connected with an auxiliary assembly 707, the two auxiliary assemblies 707 are both provided with a flow guide plate 708 matched with the dust collection groove 2, the driving piece 705 comprises a mounting block 7051 sleeved on the circumferential outer portions of the rotating shaft 703 and the limiting rod 704, the inner top portion of the mounting block 7051 is provided with a mounting cavity 7052, the circumferential outer wall of the rotating shaft 703 in the inner portion of the mounting cavity 7052 is sleeved with a worm 7053, the top portion of the worm 7053 is provided with a worm gear 7054 in meshing manner, one end side wall of the worm gear 7054 is connected with the rotating shaft 706, so that under the action of the auxiliary mechanism 7, the angle of the flow guide plate 708 can be adjusted according to the size of the smoke dust, so that the flow guide plate 708 can play a role in guiding and turbulent flow of the smoke dust, thereby stabilizing the airflow direction, and further improving the dust removal efficiency of the dust removal device.

[0031] The specific working principle of the auxiliary mechanism 7 is as follows: when it is necessary to adjust the angle of the flow guide plate 708, the servo motor 702 is started through an external controller to drive the rotating shaft 703 to rotate, under the action of the rotating shaft 703, the worm 7053 is driven to rotate, under the action of the rotation of the worm 7053, the worm 7053 drives the worm gear 7054 to rotate, the rotation of the worm gear 7054 drives the rotating shaft 706 to rotate, under the action of the rotating shaft 706, the auxiliary assembly 707 drives the flow guide plate 708 to rotate, so that the angle of the flow guide plate 708 can be adjusted according to the size of the smoke dust, so that the flow guide plate 708 can play a role in guiding and turbulent flow of the smoke dust, thereby stabilizing the airflow direction, and further improving the dust removal efficiency of the dust removal device.

[0032] In one embodiment, for the auxiliary assembly 707 described above, the auxiliary assembly 707 comprises a fixing piece 7071 connected to one end of the rotating shaft 706, and the fixing piece 7071 is symmetrically provided with a dismounting piece 7072 on both sides, the fixing piece 7071 comprises a connecting block 70711 connected to one end of the rotating shaft 706, the connecting block 70711 is provided with two symmetrical fixing blocks 70712 on both sides of one end, and the connecting block 70711 is symmetrically provided with a mounting hole 70713 on both sides of the other end, the dismounting piece 7072 comprises a through hole 70721 formed in the side wall of the fixing block 70712, the connecting block 70711 is symmetrically provided with a pressing plate 70722, the inner side of one end of the pressing plate 70722 is provided with a spring 70723 matched with the mounting hole 70713, the inner side of the middle part of the pressing plate 70722 is provided with a convex plate 70724, the top end and the bottom end of the convex plate 70724 are provided with a rotating rod 70725 matched with the through hole 70721, and the two sides of the guide plate 708 are provided with a limiting hole 70726, and the other end of the inner side of the pressing plate 70722 is provided with a limiting column 70727 matched with the limiting hole 70726, so that the guide plate 708 can be replaced and cleaned under the action of the auxiliary assembly 707, and the phenomenon that the smoke dust attached on the surface of the guide plate 708 affects the subsequent guide work and the airflow direction after long-term use is avoided, thereby improving the convenience of the dust removal device and the adaptability is wider.

[0033] The specific working principle of the auxiliary assembly 707 is as follows: when it is necessary to fix the guide plate 708, the two end side walls of the guide plate 708 are brought into contact with the side wall of the connecting block 70711, then the pressing plate 70722 is loosened, the end of the limiting column 70727 is inserted into the limiting hole 70726 and abuts against the inside of the limiting hole 70726 under the rebound of the spring 70723 and the rotation of the rotating rod 70725, and the fixing and installation of the guide plate 708 are completed, when it is necessary to dismount the guide plate 708, one end of the pressing plate 70722 is pressed, the end of the limiting column 70727 is separated from the limiting hole 70726 under the compression of the spring 70723 and the rotation of the rotating rod 70725, and then the guide plate 708 is taken off, so that the guide plate 708 can be replaced and cleaned, thereby avoiding the phenomenon that the smoke dust attached on the surface of the guide plate 708 affects the subsequent guide work and the airflow direction after long-term use, and improving the convenience of the dust removal device and the adaptability is wider.

[0034] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is described in detail below.

[0035] In actual application, first, the article to be cut is placed on the steel plate 8, the steel plate 8 is placed on the dust absorption groove 2, the article cutting can be carried out, in the cutting process, the welding slag and the smoke dust are generated, the positive pressure fan 4 and the negative pressure collector 6 are started through the external controller, the air volume of the positive pressure fan 4 is very small, the positive pressure fan 4 acts as the distribution wind of the negative pressure collector 6, in this way, the smoke dust can be sucked into the dust absorption groove 2 under the negative pressure environment in the dust absorption groove 2, under the action of the auxiliary mechanism 7, the angle of the flow guide plate can be adjusted according to the size of the smoke dust, thereby the flow guide and the turbulence can be realized on the smoke dust, and a layer of water is laid on the inner bottom of the dust absorption groove 2, the welding slag can be prevented from splashing, part of the welding fume can also be absorbed, under the action of the auxiliary assembly 707, the flow guide plate 708 can be replaced and cleaned, the smoke dust attachments on the surface of the flow guide plate 708 are avoided from affecting the subsequent flow guide work after long time use, the phenomenon that the airflow direction is affected is avoided, and the dust removal efficiency of the dust removal device is improved, the convenience is improved, and the adaptability is wider.

[0036] In the utility model, unless another definite provision and limitation, the terms "installation", "arrangement", "connection", "fix", "screw joint" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electric connection, can be direct connection, also can pass through the indirect connection of intermediate medium, can be the intercommunication of two elements or the interaction of two elements, unless another definite limitation, for the ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to the specific situation.

[0037] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that are made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dust extraction device for plasma cutting comprising a dust extraction hood (1), characterized in that, The dust absorption frame (1) is internally provided with a plurality of dust absorption grooves (2), the two sides of the dust absorption groove (2) are symmetrically provided with a circular hole (3), one side of one of the dust absorption grooves (2) is connected with a positive pressure fan (4) in the circular hole (3), the other side of one of the dust absorption grooves (2) is connected with a negative pressure dust absorption pipe (5) in the circular hole (3), the end of the negative pressure dust absorption pipe (5) is connected with a negative pressure collector (6), and the side wall of the dust absorption frame (1) is provided with an auxiliary mechanism (7) matched with the dust absorption groove (2).

2. A dust extraction device for plasma cutting according to claim 1, wherein, The auxiliary mechanism (7) comprises limiting plates (701) symmetrically arranged on the two sides of one end of the dust absorption frame (1), a servo motor (702) is provided through one side of one of the limiting plates (701), an output end of the servo motor (702) is connected with a rotating shaft (703), the bottoms of the two limiting plates (701) are connected through a limiting rod (704), the rotating shaft (703) and the circumferential outer portion of the limiting rod (704) are both sleeved with a plurality of driving elements (705), one end of the driving element (705) is connected with a plurality of rotating shafts (706) penetrating through the side wall of one end of the dust absorption frame (1), one end of each two rotating shafts (706) is connected with an auxiliary assembly (707), and each two auxiliary assemblies (707) are provided with a guide plate (708) matched with the dust absorption groove (2).

3. A dust extraction device for plasma cutting according to claim 2, wherein, The driving element (705) comprises a mounting block (7051) sleeved on the circumferential outer portion of the rotating shaft (703) and the limiting rod (704), an installation cavity (7052) is formed in the inner top of the mounting block (7051), a worm (7053) is sleeved on the circumferential outer wall of the rotating shaft (703) in the installation cavity (7052), a worm wheel (7054) is engagedly arranged on the top of the worm (7053), and one end of the worm wheel (7054) is connected with the rotating shaft (706).

4. A dust extraction device for plasma cutting according to claim 3, wherein, The auxiliary assembly (707) comprises a fixing element (7071) connected to one end of the rotating shaft (706), and symmetrically arranged on the two sides of the fixing element (7071) are dismounting elements (7072).

5. A dust extraction device for plasma cutting according to claim 4, wherein, The fixing element (7071) comprises a connecting block (70711) connected to one end of the rotating shaft (706), two symmetrically arranged fixing blocks (70712) are arranged on the two sides of one end of the connecting block (70711), and symmetrically arranged installation holes (70713) are formed in the other end of the connecting block (70711).

6. A dust extraction device for plasma cutting according to claim 5, wherein, The dismounting element (7072) comprises a through hole (70721) formed in the side wall of the fixing block (70712), pressure plates (70722) are symmetrically arranged on the two sides of the connecting block (70711), and springs (70723) matched with the installation holes (70713) are arranged on the inner side of one end of the pressure plates (70722).

7. A dust extraction device for plasma cutting according to claim 6, wherein, The inner middle part of the pressing plate (70722) is provided with a convex plate (70724), the top end and the bottom end of the convex plate (70724) are provided with a rotating rod (70725) matched with the through hole (70721), the two sides of the flow guide plate (708) are provided with a limiting hole (70726), and the other end of the inner side of the pressing plate (70722) is provided with a limiting column (70727) matched with the limiting hole (70726).

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