CN214054052U

CN214054052U - Harmful gas collecting device of closed laser cutting machine

Info

Publication number: CN214054052U
Application number: CN202022867002.4U
Authority: CN
Inventors: 龚圣男; 郭鹤; 李林林; 何深; 陈向阳
Original assignee: Zhengzhou University of Science and Technology
Current assignee: Zhengzhou University of Science and Technology
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-27
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to a closed laser cutting machine harmful gas collection device utilizes first incomplete gear, the incomplete gear of second, carries out reciprocating motion to first rack and realizes that the brush adds the piece that produces in man-hour to laser cutting machine and clears up, concentrates on convenient clearance in a container. When laser cutting machine processing work piece, produced gas can let first rack reciprocating motion when the starter motor, can carry out the inhalation to the poison gas through exhaust fan when clearing up the piece, then purifies through the active carbon of taking out and abandoning in the pipeline, and the air that exhaust purified is not harmful to the human body. The linkage of the rotating shaft of the air exhaust fan and the first incomplete gear shaft end is utilized, so that a power device is saved, the cost is saved, and the benefit is improved.

Description

Harmful gas collecting device of closed laser cutting machine

Technical Field

The utility model belongs to laser cutting equipment field specifically is a closed laser cutting machine harmful gas collection device.

Background

The laser cutting has the following characteristics that firstly, the laser cutting is free of contact and tool abrasion, the cutting seam is narrow, the heat affected zone is small, the roughness value of the surface of the cut is small, the cut parallelism is good, and the processing precision is high; secondly, the cutting speed is high, numerical control and computer control are easy to realize, the automation degree is high, and blind slots can be cut or multi-station operation can be carried out; thirdly, the noise is low, and the pollution is avoided. Laser cutting is the most important application technology in all laser processing industries, and accounts for more than 70% of the whole laser processing market. Compared with other cutting methods, the laser cutting method has the characteristics of high speed, high precision and high adaptability. Laser cutting produces heavy metal vapors when processing metals, which can harm human tissue, cause poisoning, allergic reactions, pulmonary fibrosis, carcinogenesis, etc., and can produce a wide variety of potentially dangerous substances when cutting plastics. May cause poisoning, allergic reaction, respiratory irritation, and pulmonary disease. The cellulose by-product produced during cutting of paper and wood, which is also a health killer, is generally not provided.

The existing laser cutting gas cutting machine has the following defects:

one, generally fixed mounting has the gas pocket on the laser head, carries out the piece clearance that produces to laser after to the work piece cutting, blows in the casing lower extreme with the piece, inconvenient arrangement, and long-term piling up can lead to the drive part of machine to receive the influence to the precision that leads to the cutting is not accurate.

Secondly, when the laser cutting machine cuts plastic workpieces, the generated toxic gas is diffused in the air, so that the toxic gas cannot be collected and purified, the operator is affected, and if the toxic gas is serious, the life risk is even caused to the body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a closed laser cutting machine harmful gas collection device, the piece clearance of going on producing after cutting the work piece to laser has been solved, blow in the casing lower extreme with the piece, inconvenient arrangement, long-term piling up can lead to the drive part of machine to receive the influence, thereby the precision that leads to the cutting is not accurate, when laser cutting machine is cutting plastic workpiece, the poison gas that produces, all give off in the air, can't carry out the collection purification to the poison gas, have the influence to the operator, if serious, cause life dangerous background technical problem even to the health.

The utility model discloses the scheme of taking does: a harmful gas collecting device of a closed laser cutting machine comprises a shell and is characterized in that two groups of first incomplete gears are longitudinally and rotatably connected to the front side wall and the rear side wall of the shell, two groups of second incomplete gears matched with the first incomplete gears are longitudinally and rotatably connected to the front side wall and the rear side wall of the shell, a first rack matched with the first incomplete gears and the second incomplete gears is transversely and slidably connected to the upper end of the shell to realize the reciprocating motion of the first rack, L-shaped connecting plates are fixedly connected to the left end and the right end of the rack, a support which is transversely and slidably matched with the inner side wall of the shell is fixedly connected to one end of each L-shaped connecting plate, the first gear is longitudinally and rotatably connected to the support, a second rack meshed with the first gear is fixedly connected to the inner side wall of the shell, and a second gear is fixedly connected to the other end of the rotating shaft of the first gear, the garbage collecting device is characterized in that the support is transversely and rotatably connected with a first rotating shaft, one end of the rotating shaft is fixedly connected with a third gear meshed with a second gear, the other end of the first rotating shaft is fixedly connected with a disc, one end of the disc is rotatably connected with a pawl, a torsion spring is connected between the pawl and the disc, a garbage collecting plate is transversely and fixedly connected onto the inner side wall of the shell, two groups of rectangular grooves are formed in the left end and the right end of the garbage collecting plate, a brush matched with the garbage collecting plate is coaxially and rotatably connected with the rotating shaft, and a pawl groove matched with the pawl is formed in one end of the brush.

Preferably, the casing about both ends fixedly connected with two sets of exhaust ducts, exhaust duct in be provided with the active carbon net, exhaust duct other end fixedly connected with box, the box in longitudinal interval be provided with three sets of bleed fans, the spline groove has been seted up to one of them bleed fan one end, the spline inslot horizontal sliding fit have the second axis of rotation of rotationally installing on the box, spline groove bottom fixedly connected with electro-magnet, second axis of rotation one end fixedly connected with the armature that uses with the electro-magnet cooperation, electro-magnet and armature between be connected through reset spring, the second axis of rotation on horizontal interval fixedly connected with first helical gear, second helical gear, the box on horizontal rotation be connected with the third pivot, third pivot on fixedly connected with first helical gear, second helical gear meshing third helical gear, And the third rotating shaft is fixedly connected with a first bevel gear, one end of the box body is longitudinally and rotatably connected with a second bevel gear meshed with the first bevel gear, the second bevel gear shaft end is in belt transmission connection with the first incomplete gear shaft end, the third rotating shaft is driven by a power device, and the electromagnet is electrically connected with the controller.

Preferably, the third rotating shaft is driven by a motor fixedly installed at one end of the box body.

Preferably, one end of the rectangular groove is provided with a thirty-degree chamfer.

The utility model has the advantages that: the utility model relates to a closed laser cutting machine harmful gas collection device produces beneficial efficiency as follows:

firstly, utilize first incomplete gear, the incomplete gear of second, carry out reciprocating motion to first rack and realize that the brush clears up the piece that produces when processing laser cutting machine, concentrate to convenient clearance in a container.

Two, when laser cutting machine processing work piece, produced gas can let first rack reciprocating motion when the starter motor, can carry out the suction to the poison gas through exhaust fan when clearing up the piece, then purifies through the active carbon of abandoning in the pipeline, and the air that exhaust purified can not cause the injury to the human body.

And thirdly, the linkage between the rotating shaft of the air exhaust fan and the first incomplete gear shaft end is utilized, so that a power device is saved, the cost is saved, and the benefit is improved.

Drawings

Fig. 1 is one of the three-dimensional views of the present invention.

Fig. 2 is a partially enlarged view a of fig. 1.

Fig. 3 is one of perspective views of the brush transmission of the present invention.

Fig. 4 is a partially enlarged view B of fig. 3.

Fig. 5 is one of perspective views of the brush of the present invention.

Fig. 6 is a partially enlarged view C of fig. 5.

Fig. 7 is one of perspective views of the driving of the exhaust fan of the present invention.

Fig. 8 is a partial enlarged view D of fig. 7.

Fig. 9 is a second perspective view of the utility model.

Fig. 10 is an enlarged view of part E of fig. 9.

In the figure, 1, a housing; 2. a first incomplete gear; 3. a second incomplete gear; 4. a first rack; 5. an L-shaped connecting plate; 6. a support; 7. a first gear; 8. a second rack; 9. a second gear; 10. a first rotating shaft; 11. a third gear; 12. a third gear; 13. a pawl; 14. a torsion spring; 15. a refuse collection plate; 16. a rectangular groove; 17. a brush; 18. a pawl slot; 19. an air extraction pipeline; 20. an activated carbon mesh; 21. a box body; 22. an air extraction fan; 23. a spline groove; 24. a second rotating shaft; 25. an electromagnet; 26. an armature; 27. a return spring; 28. a first helical gear; 29. a second helical gear; 30. a third rotating shaft; 31. a third bevel gear; 32. a fourth helical gear; 33. a first bevel gear; 34. a second bevel gear; 35. an electric motor.

Detailed Description

The foregoing and other features, aspects and utilities of the present invention will be apparent from the following detailed description of the embodiments with reference to the accompanying drawings in which fig. 1-10 are incorporated. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The embodiment I is characterized in that two groups of first incomplete gears 2 are longitudinally and rotatably connected to the front side wall and the rear side wall of the shell 1, two groups of second incomplete gears 3 matched with the first incomplete gears 2 are longitudinally and rotatably connected to the front side wall and the rear side wall of the shell 1, a first rack 4 matched with the first incomplete gears 2 and the second incomplete gears 3 is transversely and slidably connected to the upper end of the shell 1 to realize the reciprocating motion of the first rack 4, the left end and the right end of the rack are fixedly connected with an L-shaped connecting plate 5, one end of the L-shaped connecting plate 5 is fixedly connected with a support 6 in transverse sliding fit with the inner side wall of the shell 1, the support 6 is longitudinally and rotatably connected with a first gear 7, and the inner side wall of the shell 1 is fixedly connected with a second rack 8 meshed with the first gear 7, the other end of the rotating shaft of the first gear 7 is fixedly connected with a second gear 9, the support 6 is transversely rotatably connected with a first rotating shaft 10, one end of the rotating shaft is fixedly connected with a third gear 11 meshed with the second gear 9, the other end of the first rotating shaft 10 is fixedly connected with a disc 12, one end of the disc 12 is rotatably connected with a pawl 13, a torsion spring 14 is connected between the pawl 13 and the disc 12, a garbage collecting plate 15 is transversely and fixedly connected to the inner side wall of the shell 1, two groups of rectangular grooves 16 are formed in the left end and the right end of the garbage collecting plate 15, a brush 17 matched with the garbage collecting plate 15 is coaxially and rotatably connected with the rotating shaft, a pawl groove 18 matched with the pawl 13 is formed in one end of the brush 17, and the first incomplete gear 2 is driven by a motor.

In the embodiment, when the motor 35 is used, the first incomplete gear 2 is controlled to rotate, when the first incomplete gear 2 is meshed with the first rack 4, the second incomplete gear 3 is not meshed with the first rack 4, so that when the first rack 4 rotates in the first incomplete gear 2, the first rack 4 moves leftwards, when the first incomplete gear 2 is separated from the first rack 4, teeth at the lower end of the first incomplete gear 2 are meshed with teeth of the second incomplete gear 3 to drive the second incomplete gear 3 to move, so that the second incomplete gear 3 is meshed with the first rack 4, the first rack 4 moves rightwards, when the first incomplete gear 2 is meshed with the first rack 4, the first rack 4 moves leftwards, and reciprocates in such a way to realize reciprocating motion;

when the first rack 4 moves leftwards, the bracket 5 is driven to move leftwards, when the bracket 5 moves leftwards, one end of the bracket 5 is in sliding fit with the inner side wall of the shell 1, the other end of the bracket rotates to enable the first gear 7 to rotate anticlockwise under the action of the second rack 8, the second gear 9 is driven to rotate coaxially and anticlockwise, the third gear 11 is meshed with the second gear 9, the third gear 11 rotates clockwise, the first rotating shaft 10 also rotates clockwise because the third gear 11 is fixedly installed on the first rotating shaft 10, the first rotating shaft 10 rotates clockwise, the disc 12 is driven to rotate clockwise, the rotation of the disc 12 is under the action of the torsion spring 14, the pawl 13 is matched with a pawl groove 18 formed in one end of the brush 17, the brush 17 rotates clockwise, and scraps on the garbage collecting plate 15 fall into a rectangular groove 16 to be cleaned in the inner cavity of the shell 1, waiting for cleaning;

when the first rack 4 moves rightwards, the bracket 5 is driven to move rightwards, when the bracket 5 moves rightwards, one end of the bracket 5 is in sliding fit with the inner side wall of the shell 1, the other end of the bracket rotates the first gear 7 arranged on the bracket 5, under the action of the second rack 8, the first gear 7 rotates clockwise, the second gear 9 is driven to rotate coaxially and clockwise, the third gear 11 is meshed with the second gear 9, the third gear 11 rotates anticlockwise, the first rotating shaft 10 also rotates anticlockwise, the first rotating shaft 10 rotates anticlockwise, the disc 12 is driven to rotate anticlockwise, the pawl 13 cannot enable the brush 17 to rotate anticlockwise under the action of the torsion spring 14 when the disc 12 rotates, and the brush 17 can rotate clockwise under the action of friction force between the brush 17 and the garbage collecting plate 15, clear up rubbish backward, wait for next time first rack 4 to move left, clear up rubbish to 1 cavity of casing, wait for concentrated clearance rubbish, alleviateed people's burden, saved the time, improved work efficiency.

In the second embodiment, on the basis of the first embodiment, two sets of air exhaust ducts 19 are fixedly connected to the left and right ends of the housing 1, an activated carbon mesh 20 is disposed in each air exhaust duct 19, a case 21 is fixedly connected to the other end of each air exhaust duct 19, three sets of air exhaust fans 22 are longitudinally spaced in the case 21, one end of one air exhaust fan 22 is provided with a spline groove 23, a second rotating shaft 24 rotatably mounted on the case 21 is transversely slidably fitted in the spline groove 23, an electromagnet 25 is fixedly connected to the bottom end of the spline groove 23, an armature 26 used in cooperation with the electromagnet 25 is fixedly connected to one end of the second rotating shaft 24, the electromagnet 25 is connected to the armature 26 through a return spring 27, a first helical gear 28 and a second helical gear 29 are fixedly connected to the second rotating shaft 24 at a transverse interval, a third rotating shaft 30 is rotatably connected to the case 21, the third rotating shaft 30 is fixedly connected with a third bevel gear 31 and a fourth bevel gear 32 which are meshed with the first bevel gear 28 and the second bevel gear 29, the third rotating shaft 30 is fixedly connected with a first bevel gear 33, one end of the box body 21 is longitudinally and rotatably connected with a second bevel gear 34 meshed with the first bevel gear 33, the shaft end of the second bevel gear 34 is in belt transmission connection with the shaft end of the first incomplete gear 2, the third rotating shaft 30 is driven by a power device, and the electromagnet 25 is electrically connected with the controller.

When the embodiment is used, when a laser cutting machine processes a workpiece, a huge amount of toxic gas is generated, when the air extracting fan 22 rotates fast, the electromagnet 25 is powered on by the controller, the spline at the front end of the second rotating shaft 24 overcomes the elastic force action of the return spring 27 in the spline groove 23, the first helical gear 28 is meshed with the third helical gear 31, at this time, the motor 35 is started to enable the third rotating shaft 30 to start rotating, on one hand, the third helical gear 31 is driven to start rotating, so that the second rotating shaft 24 acts, because the spline at the front end of the second rotating shaft 24 is matched with the spline groove 23, the air extracting fan 22 starts to rotate at high speed, because the shaft ends of the three sets of air extracting fans 22 are connected through the synchronous belt, the air extracting fans 22 in the box 21 all start rotating to extract the toxic gas generated when the laser cutting machine processes the workpiece, and the active carbon net in the air extracting pipeline 19 is purified and exhausted, the purification effect is achieved, on the other hand, when the third rotating shaft 30 rotates, the first bevel gear 33 is driven to rotate, the second bevel gear 34 is driven to start to act, and the shaft end of the first incomplete gear 2 is in belt transmission connection with the shaft end of the second bevel gear 34, so that when the motor 35 is started, air suction and garbage cleaning can be achieved;

when the laser cutting machine processes a workpiece, the generated gas is not so much, the extraction fan 22 can normally rotate, the electromagnet 25 is powered off through the controller, the spline at the front end of the second rotating shaft 24 acts in the spline groove 23 through the elastic force of the return spring 27, the second helical gear 29 is meshed with the fourth helical gear 32, at this time, the motor 35 is started to enable the third rotating shaft 30 to start rotating, on one hand, the fourth helical gear 31 is driven to start rotating, the second rotating shaft 24 acts, the extraction fan 22 starts rotating at a normal speed due to the matching of the spline at the front end of the second rotating shaft 24 and the spline groove 23, and the shaft ends of the three groups of extraction fans 22 are connected through the synchronous belt, so that the extraction fans 22 in the box 21 all start rotating to extract toxic gas generated when the laser cutting machine processes the workpiece, and the activated carbon net in the extraction pipeline 19 is purified and exhausted, the purification effect is achieved, on the other hand, when the third rotating shaft 30 rotates, the first bevel gear 33 is driven to rotate, the second bevel gear 34 is driven to start to act, and the shaft end of the first incomplete gear 2 is in belt transmission connection with the shaft end of the second bevel gear 34, so that when the motor 35 is started, air suction and garbage cleaning can be achieved;

multiple sets of corresponding helical gears can be arranged on the second rotating shaft 24 and the third rotating shaft 30, and correspond to each other, and multi-gear control can be performed by setting the number of teeth.

In the third embodiment, on the basis of the second embodiment, the third rotating shaft 30 is driven by a motor 35 fixedly installed at one end of the box 21.

When the motor 35 is started, the garbage can be cleaned while exhausting air, and a power device is saved.

In the fourth embodiment, on the basis of the first embodiment, a thirty-degree chamfer is formed at one end of the rectangular groove 16.

When the brush cleaning device is used, the rectangular groove 16 is provided with the thirty-degree chamfer, so that the brush 17 can clean conveniently, and scraps can enter the inner cavity of the box body 1.

The above description is only for the purpose of illustration, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a closed laser cutting machine harmful gas collection device, includes casing (1), its characterized in that, casing (1) front and back both sides wall on longitudinal rotation be connected with two sets of first incomplete gear (2), casing (1) front and back both sides wall on longitudinal rotation be connected with first incomplete gear (2) complex two sets of incomplete gear (3) of second, casing (1) upper end lateral sliding connect with first incomplete gear (2), incomplete gear (3) complex first rack (4) of second, realize the reciprocating motion of first rack (4), both ends fixedly connected with "L" shape connecting plate (5) about the rack, "L" shape connecting plate (5) one end fixedly connected with along casing (1) inside wall lateral sliding complex support (6), support (6) longitudinal rotation be connected with first gear (7), the garbage collecting device is characterized in that a second rack (8) meshed with a first gear (7) is fixedly connected to the inner side wall of the shell (1), a second gear (9) is fixedly connected to the other end of a rotating shaft of the first gear (7), a first rotating shaft (10) is transversely and rotatably connected to the support (6), a third gear (11) meshed with the second gear (9) is fixedly connected to one end of the rotating shaft, a disc (12) is fixedly connected to the other end of the first rotating shaft (10), a pawl (13) is rotatably connected to one end of the disc (12), a torsion spring (14) is connected between the pawl (13) and the disc (12), a garbage collecting plate (15) is transversely and fixedly connected to the inner side wall of the shell (1), two groups of rectangular grooves (16) are formed in the left end and the right end of the garbage collecting plate (15), and a brush (17) matched with the garbage collecting plate (15) is coaxially and rotatably connected to the rotating shaft, one end of the brush (17) is provided with a pawl groove (18) matched with the pawl (13).

2. The harmful gas collecting device of the closed laser cutting machine according to claim 1, characterized in that two groups of air exhaust pipelines (19) are fixedly connected to the left and right ends of the casing (1), an activated carbon net (20) is arranged in each air exhaust pipeline (19), the other end of each air exhaust pipeline (19) is fixedly connected with a box body (21), three groups of air exhaust fans (22) are longitudinally arranged in each box body (21) at intervals, one end of one air exhaust fan (22) is provided with a spline groove (23), a second rotating shaft (24) rotatably mounted on the box body (21) is transversely matched in the spline groove (23) in a sliding manner, the bottom end of the spline groove (23) is fixedly connected with an electromagnet (25), one end of the second rotating shaft (24) is fixedly connected with an armature (26) matched with the electromagnet (25) for use, and the electromagnet (25) is connected with the armature (26) through a return spring (27), horizontal interval fixedly connected with first helical gear (28), second helical gear (29) on second axis of rotation (24), box (21) go up horizontal rotation and be connected with third pivot (30), third pivot (30) go up fixedly connected with and first helical gear (28), third helical gear (31), fourth helical gear (32) of second helical gear (29) meshing, third pivot (30) on fixedly connected with first bevel gear (33), box (21) one end vertical rotation be connected with second bevel gear (34) with first bevel gear (33) meshing, second bevel gear (34) axle head and first incomplete gear (2) axle head through belt drive be connected, third pivot (30) have the power device drive, electro-magnet (25) and controller between electric connection.

3. The harmful gas collecting apparatus of the enclosed laser cutting machine according to claim 2, wherein the third rotating shaft (30) is driven by a motor (35) fixedly installed at one end of the case (21).

4. The harmful gas collecting device of the enclosed laser cutting machine according to claim 1, characterized in that one end of the rectangular groove (16) is chamfered by thirty degrees.