Automatic rotary air door device and laser cutting machine

Abstract

The utility model provides an automatic rotating air door device and a laser cutting machine, and the automatic rotating air door device comprises an exhaust pipe with a first direction and a second direction which form an included angle; the two blocking strips are arranged on the two opposite inner walls, arranged in the first direction, of the exhaust pipe respectively and protrude out of the inner walls, and the blocking strips extend in the second direction; the air door is rotatably arranged in the exhaust pipe through a rotating shaft parallel to the second direction, and the exhaust pipe is closed when the air door rotates until the two ends of the air door abut against the two blocking strips respectively; and the driver is connected with the air door to drive the air door to rotate. According to the automatic rotating air door device, the air door can be automatically opened and closed, the sealing effect is good, and the device is more convenient and safer.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser processing, and more particularly relates to an automatic rotating air door device and a laser cutting machine. BACKGROUND

[0002] In the state of machine cutting, a lot of smoke and dust will be generated, which will affect the cutting effect, the pollution of key components and the pollution of the working environment, manual opening and closing of the door is troublesome and unsafe, and the use is inconvenient. Although the automatic air door mechanism used in the related art can automatically open and close, the gap reserved to ensure the rotation of the air door causes edge leakage when the air door is closed, which still causes smoke and dust pollution. CONTENT OF THE UTILITY MODEL

[0003] The application embodiment provides an automatic rotating air door device which can automatically open and close the air door, has good sealing effect, and is more convenient and safe.

[0004] The technical scheme adopted by the application embodiment is as follows: an automatic rotating air door device is provided, which comprises:

[0005] An air suction pipe has a first direction and a second direction arranged at an included angle;

[0006] Two blocking strips are arranged on opposite inner walls of the air suction pipe along the first direction, and protrude from the inner walls, and the blocking strips extend along the second direction;

[0007] An air door is rotatably arranged inside the air suction pipe with a rotation shaft parallel to the second direction, and the air door is closed when the air door is rotated to abut against the two blocking strips at two ends; and a driver is connected to the air door to drive the rotation of the air door.

[0008] Further, the cross-sectional shape of the air suction pipe perpendicular to the gas flow direction during air suction is rectangular, and the air door is rectangular and matches the cross-sectional shape of the air suction pipe.

[0009] Further, the blocking strip is located on the inner wall of the air suction pipe parallel to the rotation axis of the air door, and the blocking strip extends along the rotation axis direction.

[0010] Further, the air door is provided with a rotating part at both ends of the rotation axis, the air suction pipe is provided with a shaft hole matched with the rotating part for rotation, and the driver is arranged at one end outside the air suction pipe and connected to the rotating part to drive the rotation of the rotating part.

[0011] Further, the rotating member comprises a cylindrical portion, a first connecting portion and a second connecting portion, the cylindrical portion is rotatably arranged in the shaft hole, the first connecting portion and the second connecting portion are respectively located at two ends of the cylindrical portion, the first connecting portion is connected with the driver, the second connecting portion comprises a first end face and a second end face which are perpendicular to each other, the first end face is perpendicular to the axis of the cylindrical portion, one end of the damper which is perpendicular to the rotation axis of the damper abuts against the first end face, and one end of the damper which is parallel to the rotation axis of the damper is fixedly attached to the second end face.

[0012] Further, the automatic rotating damper device further comprises a fixing frame which is fixed outside the air exhaust pipe, the fixing frame partially extends to be opposite to the shaft hole, the fixing frame is provided with a through hole which is opposite to the shaft hole, the driver is arranged in the fixing frame, and one end of the rotating member which is away from the damper passes through the through hole and is connected with the driver.

[0013] Further, the automatic rotating damper device further comprises a limiting protrusion which is arranged on the inner wall of the air exhaust pipe, one side edge of the damper is located between the limiting protrusion and the blocking strip, and the limiting protrusion abuts against the side edge when the damper is opened to the maximum.

[0014] Further, the automatic rotating damper device further comprises a filter screen which is detachably arranged at the inlet end of the air exhaust pipe.

[0015] Further, the automatic rotating damper device further comprises a protective cover which is arranged outside the air exhaust pipe, and the driver is located on the inner side of the protective cover.

[0016] The embodiment of the present application further provides a laser cutting machine which comprises a bed body and the automatic rotating damper device as any one of the above, and the air exhaust pipe is arranged in the bed body.

[0017] The automatic rotating damper device provided by the embodiment of the present application has the beneficial effects that the driver is arranged in the automatic rotating damper device to drive the rotation of the damper in the air exhaust pipe, the automatic control of the opening and closing action of the damper is realized, the manual operation is completely replaced, and the safety risk of the operator triggering the switch at a close distance in the dust environment is avoided. The two blocking strips arranged on the two opposite inner walls of the air exhaust pipe along the first direction are protruded from the inside and extended along the second direction, so that the two ends of the damper abut against the blocking strips when the damper is closed, the linear contact or surface contact sealing is formed, the edge gap of the traditional rotating damper is effectively eliminated, the leakage of the smoke and dust through the edge of the damper is prevented, and thus the pollution probability of the key components and the dust concentration of the working environment are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 A perspective view of the automatic rotating air door device in a closed state according to an embodiment of the present application is shown in FIG. 2.

[0020] Figure 2 A sectional view of the automatic rotating air door device in a closed state according to an embodiment of the present application is shown in FIG. 3.

[0021] Figure 3 A perspective view of the automatic rotating air door device in an open state according to an embodiment of the present application is shown in FIG. 4.

[0022] Figure 4 A sectional view of the automatic rotating air door device in an open state according to an embodiment of the present application is shown in FIG. 5.

[0023] Figure 5 A perspective view of the air suction pipe according to an embodiment of the present application is shown in FIG. 6.

[0024] Figure 6 A perspective view of the rotating member according to an embodiment of the present application is shown in FIG. 7.

[0025] Figure 7 A schematic view of the automatic rotating air door device installed on the main body of the bed according to an embodiment of the present application is shown in FIG. 8.

[0026] Figure 8 A perspective view of the automatic rotating air door device according to an embodiment of the present application is shown in FIG. 9. Figure 7 An enlarged view of position A in FIG. 9.

[0027] In the drawings, the reference signs are as follows:

[0028] 10, air suction pipe; 11, shaft hole; 20, air door; 30, driver; 40, blocking strip; 50, rotating member; 51, first connecting part; 52, cylindrical part; 53, second connecting part; 531, first end surface; 532, second end surface; 60, fixing frame; 61, fixing block; 62, fixing plate; 70, limiting protrusion; 80, filter screen; 90, protective cover; 100, main body of bed; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application.

[0030] It should 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 indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0033] Please refer to Figure 1 , the automatic rotating damper 20 device provided by the embodiment of the present application will be described. The automatic rotating damper 20 device provided by the embodiment of the present application comprises an air suction pipe 10, a damper 20, a driver 30 and two blocking strips 40.

[0034] Among them, referring to Figure 1 and Figure 5 , the air suction pipe 10 is the air flow channel of the entire device. The cross-sectional shape of the air suction pipe 10 can be rectangular. The air suction pipe 10 has a first direction X and a second direction Y arranged at an angle. Among them, the first direction X can be the up-down direction, and the second direction Y can be the left-right direction. Or the first direction X is the left-right direction, and the second direction Y is the up-down direction. In the embodiment of the present application, the first direction X is the up-down direction, and the second direction Y is the left-right direction.

[0035] Referring to Figure 2 , the two blocking strips 40 are respectively arranged on the opposite two inner walls of the air suction pipe 10 along the first direction X, and protrude from the inner walls, and the blocking strips 40 extend along the second direction Y.

[0036] Two of the baffle strips 40 are arranged on two opposite inner walls of the air duct 10, for example, one baffle strip 40 is arranged on the top wall and the other baffle strip 40 is arranged on the bottom wall. The two baffle strips 40 extend along the second direction Y, for example, from left to right, i.e., from one side inner wall to the other side inner wall.

[0037] With reference to Figure 1 and Figure 2 , the damper 20 is rotatably arranged inside the air duct 10 with a rotation axis parallel to the second direction Y, and the air duct 10 is closed when the damper 20 is rotated to abut against the two baffle strips 40 at two ends. The damper 20 is a key component for controlling the air flow of the air duct 10. The damper 20 and the air duct can be connected by a shaft, so that the damper 20 can rotate flexibly around the shaft axis parallel to the second direction Y. When it is necessary to open the air duct, the damper 20 is rotated around the shaft axis, so as to open the passage of the air duct 10 and enable the air flow to pass through smoothly; when it is necessary to close the air duct, the damper 20 is rotated reversely until it completely covers the passage of the air duct 10, and the two ends of the damper 20 abut against the two baffle strips 40, so as to cut off the air flow.

[0038] Since the baffle strips 40 extend along the second direction Y, when the baffle strips 40 abut against the damper 20, the abutment can form a sealing effect of line contact or surface contact (continuous without gaps), effectively eliminating the gap existing at the edge of the traditional rotating damper 20 when it is closed, thereby greatly reducing the probability of contamination of the key component, and significantly reducing the dust concentration in the working environment, providing a strong guarantee for the long-term stable operation of the equipment and the health of the workers.

[0039] It can be understood that when the cross section of the air duct 10 is rectangular, the damper 20 is also rectangular.

[0040] With reference to Figure 1 , the driver 30 is connected to the damper 20 to drive the damper 20 to rotate. The driver 30 is the power source for rotating the damper 20. Specifically, the driver 30 can be an electric motor or a cylinder linkage mechanism.

[0041] With reference to Figure 1 and Figure 2 , the cross section of the air duct 10 perpendicular to the direction of air flow during air extraction is rectangular, and the damper 20 is rectangular and matches the cross section shape of the air duct 10.

[0042] The cross section of the air duct 10 is rectangular, and is generally a rectangular tube (or square tube). It can be understood that the air duct 10 has a top plate, a bottom plate and two side plates, which are connected to form a rectangle. The air door 20 is also rectangular to fit the air duct 10. In some embodiments, the rotation axis of the air door 20 is horizontal, located between the top plate and the bottom plate. It can be understood that the end of the air door 20 perpendicular to the axis is parallel to the top plate and the bottom plate of the air duct 10, and the two sides of the air door 20 are in contact with the two side plates to minimize air leakage.

[0043] Referring to Figure 2 In some embodiments, the air door 20 is rectangular, and the rotation axis thereof passes through the midpoint of the two short sides, that is, the axis of the air door 20 is on the symmetry axis thereof. The two stoppers 40 are symmetrically arranged on the inner wall of the air duct 10 with respect to the rotation axis of the air door 20.

[0044] Referring to Figure 2 and Figure 5 The stopper 40 is located on the inner wall of the air duct 10 parallel to the rotation axis of the air door 20, and extends along the direction of the rotation axis. For example, the two stoppers 40 are arranged on the top plate and the bottom plate, respectively. When the air door 20 is closed, the upper and lower edges of the air door 20 abut against the two stoppers 40, respectively. The stopper 40 extends linearly and can cooperate with the upper and lower edges of the air door 20 to seal the gap between the air door 20 and the top plate and the bottom plate of the air duct 10, and also limits the air door 20 to ensure that the air door 20 stays in the closed position.

[0045] Referring to Figure 2 The stopper 40 is integrally connected with the corresponding top plate or bottom plate of the air duct 10. Preferably, a sealing rubber strip can be installed on the stopper 40 to further improve the sealing effect.

[0046] Referring to Figure 2 , Figure 5 and Figure 6 The air door 20 is provided with rotating members 50 at both ends along the rotation axis thereof, the air duct 10 is provided with shaft holes 11 that cooperate with the rotating members 50 to rotate, and the drive 30 is arranged at one end outside the air duct 10 and connected with one of the rotating members 50 to drive the rotating member 50 to rotate. That is, the air door 20 is connected with the air duct 10 through the two rotating members 50 to rotate. Specifically, the rotating member 50 can be a rotating shaft, which can be connected with the shaft hole 11 through a bearing.

[0047] Referring to Figure 6The rotating member 50 includes a cylindrical portion 52, a first connecting portion 51 and a second connecting portion 53. The cylindrical portion 52 is rotatably arranged in the shaft hole 11. The first connecting portion 51 and the second connecting portion 53 are respectively arranged at two ends of the cylindrical portion 52. The first connecting portion 51 is connected with the driver 30. The second connecting portion 53 includes a first end surface 531 and a second end surface 532 which are perpendicular to each other. The first end surface 531 is perpendicular to the axis of the cylindrical portion 52. One end of the damper 20 which is perpendicular to the rotation axis of the damper 20 abuts against the first end surface 531. One end of the damper 20 which is parallel to the rotation axis of the damper 20 is fixedly attached to the second end surface 532.

[0048] That is, the rotating member 50 is connected with the driver 30 through the first connecting portion 51 to transmit the rotation power of the driver 30. The rotating member 50 is rotatable in the shaft hole 11 through the circumferential surface of the cylindrical portion 52. The second connecting portion 53 has the first end surface 531 and the second end surface 532 which are perpendicular to each other and form an L-shaped structure. The second end surface 532 can be fixedly attached to the damper 20 to ensure that the plate surface of the damper 20 is parallel to the rotation axis. The first end surface 531 can limit the damper 20 to prevent the damper 20 from being deviated in the direction of the rotation axis.

[0049] With reference to Figure 1 The automatic rotating damper 20 device further includes a fixing frame 60 which is fixed to the outside of the air duct 10. The fixing frame 60 partially extends to be opposite to the shaft hole 11. The fixing frame 60 is provided with a through hole which is opposite to the shaft hole 11. The driver 30 is arranged on the fixing frame 60. One end of the rotating member 50 which is away from the damper 20 passes through the through hole to be connected with the driver 30.

[0050] The fixing frame 60 is fixed to the outside of the air duct 10 to connect and fix the driver 30 with the air duct 10, thereby ensuring the stable installation of the driver 30. The through hole provided on the fixing frame 60 is used for the rotating member 50 to pass through and be connected with the driver 30.

[0051] Specifically, the fixing frame 60 includes a fixing block 61 and a fixing plate 62. The fixing block 61 is arranged outside the air duct 10 and located at one side of the shaft hole 11. One end of the fixing plate 62 is connected with the fixing block 61, and the other end extends to be opposite to the shaft hole 11. The through hole is arranged on the fixing plate 62. The driver 30 is arranged on the fixing plate 62. The fixing block 61 is fixed to the outside of the air duct 10 by means of screws or welding. One end of the fixing plate 62 is fixed with the fixing block 61 by means of screws or welding. The driver 30 is installed on the fixing plate 62 by means of screws or bolts.

[0052] With reference to Figure 2 , Figure 4 and Figure 5The automatic rotating damper 20 device further comprises a limiting protrusion 70, which is arranged on the inner wall of the air duct 10, and one side edge of the damper 20 is located between the limiting protrusion 70 and the blocking strip 40 and abuts against the limiting protrusion 70 when the damper 20 is opened to the maximum.

[0053] The limiting protrusion 70 functions to limit the angle of the damper 20 when the damper 20 is opened. When the damper 20 is turned from the closed state to the opened state, one side edge of the damper 20 gradually moves away from the blocking strip 40 and gradually approaches the limiting protrusion 70 and is opened to the maximum after abutting against the limiting protrusion 70. Specifically, the limiting protrusion 70 is a limiting block which is integrally connected with one side plate of the air duct 10.

[0054] The angle of the damper 20 when the damper 20 is in the closed state and the opened maximum state is 80°-110°, preferably 90°.

[0055] With reference to Figure 1 The automatic rotating damper 20 device further comprises a filter screen 80 which is detachably arranged at the inlet end of the air duct 10. The filter screen 80 and the air duct 10 can be detachably connected by using a buckle structure, a screw or a bolt. The filter screen 80 functions to filter the smoke dust extracted to prevent large foreign matters from entering the air duct 10 and causing damage to the subsequent structure.

[0056] With reference to Figure 7 and Figure 8 The automatic rotating damper 20 device further comprises a protective cover 90 which is arranged outside the air duct 10 and the driver 30 is located inside the protective cover 90.

[0057] The application further provides a laser cutting machine comprising a bed body 100 and the automatic rotating damper 20 device according to any of the above embodiments, and the air duct 10 is arranged in the bed body 100.

[0058] The laser cutting machine according to the embodiments of the application has the beneficial effects of the automatic rotating damper 20 device according to any of the above embodiments, and details are not repeated here.

[0059] The above merely describes preferred embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An automatic rotating damper device, characterized by, The automatic rotating damper device comprises: an air suction pipe having a first direction and a second direction arranged at an included angle; two baffle strips, each of which is arranged on an opposite inner wall of the air suction pipe along the first direction and protrudes from the inner wall, and extends along the second direction; a damper rotatably arranged inside the air suction pipe with a rotation shaft parallel to the second direction, the damper being closed when rotated to abut against the two baffle strips at two ends thereof; and a driver connected to the damper to drive the damper to rotate.

2. The automatic rotating damper device of claim 1, wherein The cross section of the air suction pipe perpendicular to the direction of gas flow during air suction is rectangular, and the damper is rectangular and matches the cross section of the air suction pipe.

3. The automatic rotating damper device of claim 1, wherein The damper is provided with a rotating member at each end of the rotation axis thereof, the air suction pipe is provided with a shaft hole for cooperating with the rotating member to rotate, and the driver is arranged at one end outside the air suction pipe and connected to one of the rotating members to drive the rotating member to rotate.

4. The automatic rotating damper device of claim 3, wherein The rotating member comprises a cylindrical portion rotatably arranged in the shaft hole, a first connecting portion and a second connecting portion arranged at two ends of the cylindrical portion respectively, the first connecting portion is connected to the driver, and the second connecting portion comprises a first end surface and a second end surface perpendicular to each other, the first end surface is perpendicular to the axis of the cylindrical portion, one end of the damper perpendicular to the rotation axis thereof abuts against the first end surface, and one end of the damper parallel to the rotation axis thereof is fixed to the second end surface.

5. The automatic rotating damper device of claim 4, wherein The automatic rotating damper device further comprises a fixing frame fixed to the outside of the air suction pipe, the fixing frame partially extends to be opposite to the shaft hole, the fixing frame is provided with a through hole opposite to the shaft hole, the driver is arranged in the fixing frame, and one end of the rotating member away from the damper passes through the through hole and is connected to the driver.

6. The automatic rotating damper device of claim 1, wherein The automatic rotating damper device further comprises a limiting protrusion arranged on the inner wall of the air suction pipe, one side edge of the damper is located between the limiting protrusion and one of the baffle strips, and the limiting protrusion abuts against the damper when the damper is opened to the maximum.

7. The automatic rotating damper device of claim 1, wherein The automatic rotating damper device further comprises a filter screen detachably arranged at the inlet end of the air suction pipe.

8. The automatic rotating damper device of claim 1, wherein The automatic rotating damper device further comprises a protective cover arranged outside the air suction pipe, and the driver is located inside the protective cover.

9. A laser cutting machine characterized in that, The automatic rotating damper device comprises a bed body and the automatic rotating damper device according to any one of claims 1 to 8, and the air suction pipe is arranged in the bed body.

Images