Dust absorption device of mechanical carving machine

Abstract

The utility model relates to a dust absorption device of a mechanical engraving machine, which comprises a horizontal suspension arm arranged on a guide rail of the engraving machine, a dust hood is butted with the tail end of the horizontal suspension arm, the dust hood synchronously moves along with the guide rail, the dust hood is connected with a suction device through a pipeline, and a pressure air duct is arranged below the horizontal suspension arm. The pressure air duct is connected with a machine head sliding seat of the carving machine, the machine head sliding seat drives the pressure air duct to move in the length direction of the guide rail, and the pressure air duct blows dust on the surface of a workpiece to the dust collection cover. Compared with the prior art, the utility model has the beneficial effects that through the structural design of the dust hood, the absorbable range can be increased, and the airflow blown out by the pressure air duct can blow large-particle sweeps on a workpiece, so that the large-particle sweeps are positioned in the absorption range of the dust hood, and the dust hood is prevented from falling off. Therefore, the situation that large-particle sweeps are clamped on the surface of the workpiece is reduced, the cleanliness of the surface of the workpiece is improved, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of equipment matched with engraving machine, and particularly relates to a dust suction device of mechanical engraving machine. BACKGROUND

[0002] The mechanical engraving machine is a kind of equipment for carrying out engraving processing on the surface of various materials, and the engraving head moves on the surface of materials according to instructions under the driving of the motor to carry out accurate actions such as cutting, milling and drilling, so as to shape the required shape and pattern, for example, when an wooden handicraft is engraved, the engraving machine moves the engraving head on the surface of wood according to instructions, and the cutter rotates at high speed to remove wood little by little like using a hand engraving knife, but the removal process is more accurate and efficient, and meanwhile, some waste and dust are generated.

[0003] In the prior art, a dust removal device for a laser engraving machine is disclosed, and the authorization announcement number is CN208289224U, which comprises a support plate, a top plate is fixedly installed on the top of the support plate, a boom is vertically fixedly installed on the bottom surface of the top plate, a laser engraving head is installed on the lower end of the boom, a motor compartment is fixedly installed on the bottom surface of the top plate, a driving motor is installed in the motor compartment, a driving shaft extending downward into the wind pipe is coaxially fixedly installed on the output shaft of the driving motor, blades are fixedly installed on the surface of the driving shaft, a dust collection bin is fixedly installed outside the wind pipe, and a material guiding channel is formed in the side wall of the wind pipe and communicates with the inside of the dust collection bin; during the engraving process, the driving motor is started, the driving motor drives the blades to rotate, the upward airflow carries the dust generated during the engraving process into the wind pipe through the dust cover, and enters the dust collection bin through the material guiding channel.

[0004] However, since a groove with a certain shape is formed on the surface of the workpiece during the engraving process, and the waste cuttings are sometimes stuck in the groove on the surface of the workpiece, the above scheme can only absorb relatively small dust particles, which may cause the waste residues to exist on the surface of the workpiece, and subsequent processing is required, which is troublesome. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a dust suction device of mechanical engraving machine, which can not only absorb small particle dust cuttings, but also absorb large particle waste, so as to increase the cleanliness of the surface of the workpiece.

[0006] To achieve the above object, the utility model discloses technical scheme is a kind of dust absorption device of mechanical engraving machine, including the flat hanger arm of guide rail installation in engraving machine, the dust cover is butt-jointed to the end of flat hanger arm, dust cover moves synchronously with guide rail, dust cover is connected with suction device by pipeline, pressure air cylinder is arranged below flat hanger arm, pressure air cylinder is connected with the head slide of engraving machine, head slide drives pressure air cylinder to move along the length direction of guide rail, pressure air cylinder blows the dust on the surface of workpiece to dust cover, side of pressure air cylinder is provided with steering obstacle arm, steering obstacle arm is installed on engraving machine, when pressure air cylinder moves along the length direction of guide rail and contact with steering obstacle arm, pressure air cylinder overturns horizontally.

[0007] Further, the dust cover includes a central cover body having an opening facing downward, a cover plate and an auxiliary plate are butt-jointed at the opening of the central cover body, the cover plate extends towards the head slide, and the auxiliary plate extends in a direction opposite to the cover plate.

[0008] Further, the cover plate includes a flat plate and a curved plate, the flat plate and the curved plate are connected in a circular arc transition and both are located above the auxiliary plate, and the curved plate is butt-jointed with the opening side of the central cover body.

[0009] Further, the auxiliary plate includes a mounting plate, the mounting plate is butt-jointed with the opening side of the central cover body through a bridge plate with a V-shaped cross section, and a supporting roller is arranged below the mounting plate.

[0010] Further, the length of the central cover body is equal to the length of the guide rail, side baffles are arranged at both ends of the central cover body, and the side baffles block the ends of the cover plate and the auxiliary plate.

[0011] Further, a positioning plate is arranged above the central cover body, the positioning plate is connected with the central cover body through a hanger rod, a vertical hanger arm is arranged at the central position of the positioning plate, a positioning assembly is connected with the vertical hanger arm, and the positioning assembly is fixed at the end position of the flat hanger arm.

[0012] Further, a hanger disc is fixed on the pressure air cylinder, the hanger disc is connected with the lower surface of the head slide through a shaft rod at the center of the hanger disc, and the hanger disc can rotate.

[0013] Further, a tight position washer is sleeved on the shaft rod, a compression return spring is arranged between the tight position washer and the hanger disc, and the compression return spring is sleeved on the shaft rod.

[0014] Further, the steering obstacle arm is located at the side of the guide rail, the steering obstacle arm is in a vertical state and connected with the guide rail through a U-shaped rod, and a return plate is arranged on the guide rail.

[0015] Compared with the prior art, the dust cover has the advantages that: the structure design of the dust cover can increase the absorption range, and the airflow blown by the pressure air cylinder can blow the large-particle waste scraps on the workpiece, so that the large-particle waste scraps are located in the absorption range of the dust cover, the situation that the large-particle waste scraps are stuck on the surface of the workpiece is reduced, the cleanliness of the surface of the workpiece is increased, and the machining efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram when the utility model is assembled on a mechanical engraving machine.

[0017] Figure 2 It is a dust cover and positioning plate connection schematic diagram of the utility model.

[0018] Figure 3 It is a dust cover structure schematic diagram of the utility model.

[0019] Figure 4 It is a pressure air cylinder and machine head sliding seat connection schematic diagram of the utility model.

[0020] Figure 5 It is a steering obstacle arm and guide rail connection schematic diagram of the utility model.

[0021] Wherein, 1-work support, 2-guide rail, 3-machine head sliding seat, 4-engraving machine head, 5-X direction rail, 6-flat hanging arm, 7-dust cover, 8-suction device, 9-center cover body, 10-dust collecting box, 11-positioning plate, 12-hanging rod, 13-air pipe, 14-vertical hanging arm, 15-end position hanging plate, 16-limiting rod, 17-adjusting disc, 18-limiting spring, 19-flat plate, 20-curved plate, 21-carrying plate, 22-bridge plate, 23-side baffle, 24-pressure air cylinder, 25-hanging disc, 26-shaft rod, 27-steering obstacle arm, 28-U-shaped rod, 29-compression reset spring, 30-return plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not intended to limit the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. In the embodiments, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0023] The device is installed on an existing mechanical engraving machine. The existing mechanical engraving machine generally comprises a work table 1, a guide rail 2, a head slide 3 and an engraving head 4. An X-direction rail 5 is arranged on the work table 1. The end of the guide rail 2 is located on the X-direction rail 5. The head slide 3 is installed on the guide rail 2. At this time, the guide rail 2 can slide along the X-direction rail 5. The head slide 3 can slide along the length direction of the guide rail 2. The length direction of the guide rail 2 is Y-direction. The engraving head 4 is slidingly connected to the head slide 3. The engraving head 4 can move vertically on the head slide 3. At this time, the engraving head 4 can move in the directions of X, Y and Z coordinate axes.

[0024] Referring to Figures 1 to 5 The device is a dust absorption device of a mechanical engraving machine. The device comprises a flat hanging arm 6. The flat hanging arm 6 is in a horizontal state. One end of the flat hanging arm 6 is fixed on the guide rail 2. The other end is connected to a dust suction hood 7. The dust suction hood 7 can move vertically until there is a small gap between the dust suction hood 7 and the surface of the workpiece to be engraved. It should be noted that at this time, the connection between the flat hanging arm 6 and the guide rail 2 cannot affect the sliding of the head slide 3 on the guide rail 2. The dust suction hood 7 is connected to a suction device 8 through a pipeline. The suction device 8 can be a negative pressure fan in the prior art. The suction device 8 can be installed on the flat hanging arm 6. In this way, when the guide rail 2 moves in the X-direction on the work table 1, the dust suction hood 7 can be driven to move in the X-direction. The dust suction hood 7 can absorb the dust cut off.

[0025] The dust cover 7 should have a small gap between the dust cover 7 and the surface of the workpiece when it is lowered to the lowest position. The dust cover 7 specifically includes a central cover body 9, which has an opening facing downward, and dust and debris can enter the central cover body 9 through the opening. A plurality of openings are provided on the central cover body 9, and each opening is connected with a dust collection box 10 through an air duct 13. The dust collection box 10 is connected with the suction device 8 through a corrugated pipe. A positioning plate 11 is arranged above the central cover body 9 and is connected with the central cover body 9 through a lifting rod 12. At this time, there is a certain gap between the positioning plate 11 and the central cover body 9, and the dust collection box 10 is located in the gap and is installed on the lower surface of the positioning plate 11. A positioning assembly is fixed at the end position of the horizontal lifting arm 6. The positioning plate 11 is connected with the positioning assembly through a vertical lifting arm 14. At this time, the vertical lifting arm 14 is connected with the center position of the upper surface of the positioning plate 11. The horizontal height of the dust cover 7 can be adjusted through the positioning assembly and the vertical lifting arm 14.

[0026] Specifically, the positioning assembly includes an end-position hanging plate 15 fixed at the end of the horizontal lifting arm 6. The end-position hanging plate 15 is provided with a center hole and a limiting hole. A limiting rod 16 passes through the limiting hole. The lower end of the limiting rod 16 is connected with the positioning plate 11. At this time, the positioning plate 11 can only move vertically, but it cannot rotate. The vertical lifting arm 14 passes through the center hole. The lower end of the vertical lifting arm 14 is fixed at the middle position of the positioning plate 11. An outer thread is arranged on the vertical lifting arm 14. An adjusting disc 17 located above the end-position hanging plate 15 is screwed with the outer thread. When the adjusting disc 17 rotates, it will move along the axis direction of the vertical lifting arm 14. At this time, the lowest horizontal height of the dust cover 7 can be limited. In order to make the dust cover 7 be in the lowest position as much as possible, a limiting spring 18 is sleeved on the vertical lifting arm 14. The upper end of the limiting spring 18 abuts against the lower surface of the end-position hanging plate 15, and the lower end of the limiting spring 18 abuts against the upper surface of the positioning plate 11.

[0027] In order to increase the stability of the dust cover 7 to absorb the debris, the cover plate and the auxiliary plate are connected to the opening of the center cover 9, the auxiliary plate extends in the opposite direction of the cover plate, the cover plate extends towards the head slide, and the auxiliary plate extends away from the head slide, at this time the center cover 9 is located between the auxiliary plate and the cover plate, the cover plate includes a flat plate 19 and a curved plate 20, the flat plate 19 and the curved plate 20 are connected in a circular arc transition, the horizontal height of the flat plate 19 is always higher than the horizontal height of the curved plate 20, the curved plate 20 is connected to the opening side of the center cover 9, the flat plate 19 and the curved plate 20 are located above the auxiliary plate, and the auxiliary plate includes a loading plate 21, the loading plate 21 is connected to the opening side of the center cover 9 through the bridge plate 22 with a V-shaped cross section, the end of the loading plate 21 is connected to the ear plate, the ear plate is connected to the rotatable supporting roller, the supporting roller is located below the loading plate 21, when the supporting roller is placed on the workpiece surface, the flat plate 19 has a vertical spacing with the workpiece surface, the length of the center cover 9 is equal to the length of the guide rail 2, and the both ends are provided with side plates 23, the side plates 23 block the ends of the cover plate and the auxiliary plate, and during the machining of the workpiece surface, the situation that the debris flies out of the working platform can be reduced.

[0028] In order to make the debris as much as possible to be absorbed by the dust cover 7, the pressure air cylinder 24 is connected to the head slide 3 of the engraving machine, the pressure air cylinder 24 is located below the flat hanging arm 6, at this time the pressure air cylinder 24 is not in a horizontal state, the center extension line has an angle with the workpiece surface, the pressure air cylinder 24 blows the dust and debris on the workpiece surface to the dust cover, the pressure air cylinder 24 is fixed with the hanging disc 25 near the end, the hanging disc 25 is located above the pressure air cylinder 24, the shaft rod 26 is fixed at the center of the hanging disc 25, the counter bore is arranged on the lower surface of the head slide 3, the shaft rod 26 can be inserted into the counter bore, and the locking washer is screwed in the counter bore, at this time the hanging disc 25 can rotate but cannot be separated from the head slide 3, the turning blocking arm 27 is arranged beside the pressure air cylinder 24, the turning blocking arm 27 can be arranged beside the guide rail 2, at this time the turning blocking arm 27 is in a vertical state and is connected to the guide rail 2 through the U-shaped rod 28, when the head slide 3 drives the pressure air cylinder 24 to move along the length direction of the guide rail 2 and contacts with the turning blocking arm 27, with the continuous movement of the head slide, the pressure air cylinder 24 will be horizontally flipped, at this time the blowing direction is changed, but no matter which direction the pressure air cylinder 24 blows, the airflow blown by the pressure air cylinder 24 needs to pass through the directly below of the engraving head, the pressure air cylinder 24 is connected with the air compressor through the airflow pipe, so as to reduce the situation that the debris is stuck in the groove of the workpiece surface.

[0029] In order to increase the stability of the pressure air cylinder 24, a tight washer is sleeved on the shaft 26, a compression return spring 29 is arranged between the tight washer and the hanging disc 25, the compression return spring 29 is sleeved on the shaft 26, and through the adjustment of the length of the pressure air cylinder 24, when the pressure air cylinder 24 is turned to the position that the air flow blown by the pressure air cylinder 24 passes through the position directly below the engraving machine head, the pressure air cylinder 24 is separated from the turning blocking arm 27, the return plate 30 is arranged on the guide rail 2, when the machine head sliding seat continuously moves to the position close to the end along the length direction of the guide rail 2, the rear end of the pressure air cylinder 24 will contact the return plate 30, at this time, the pressure air cylinder 24 will be turned by a certain angle, so that when the machine head sliding seat moves to the other end of the guide rail, the pressure air cylinder 24 will contact the turning blocking arm again, so that the pressure air cylinder 24 is turned again.

[0030] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can be electrical connection, can be hydraulic connection, can be direct connection, can also be indirect connection through intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A dust absorption device for a mechanical engraver, characterized by: The dust cover is connected to the end of the flat hanging arm, and the dust cover moves synchronously with the guide rail, and the dust cover is connected with the suction device through the pipeline; The pressure air cylinder is arranged below the flat hanging arm, and the pressure air cylinder is connected with the head slide of the engraving machine, the head slide drives the pressure air cylinder to move along the length direction of the guide rail, and the pressure air cylinder blows the dust on the surface of the workpiece to the dust cover; The pressure air cylinder is arranged below the flat hanging arm, and the pressure air cylinder is connected with the head slide of the engraving machine, the head slide drives the pressure air cylinder to move along the length direction of the guide rail, and the pressure air cylinder blows the dust on the surface of the workpiece to the dust cover; 2. A dust absorption device for a mechanical engraver according to claim 1, characterized in that: The dust cover includes a center cover body, the center cover body has an opening and the opening faces downward, a cover plate and an auxiliary plate are connected to the opening of the center cover body, the cover plate extends towards the head slide, and the auxiliary plate is opposite to the extension direction of the cover plate.

3. A dust extraction device for a mechanical engraver as claimed in claim 2, wherein: The cover plate includes a flat plate and a curved plate, the flat plate and the curved plate are connected in arc transition and both are above the auxiliary plate, and the curved plate is connected to the side of the opening of the center cover body.

4. A dust extraction device for a mechanical engraver according to claim 2 or 3, characterised in that: The auxiliary plate includes a mounting plate, the mounting plate is connected to the side of the opening of the center cover body through a bridge plate with a V-shaped cross section, and a supporting roller is arranged below the mounting plate.

5. A dust extraction device for a mechanical engraver as claimed in claim 2 or 3, wherein: The length of the center cover body is equal to the length of the guide rail, side plates are arranged at both ends of the center cover body, and the side plates block the ends of the cover plate and the auxiliary plate.

6. A dust extraction device for a mechanical engraver as claimed in claim 5, wherein: A positioning plate is arranged above the center cover body, the positioning plate is connected to the center cover body through a hanger, a vertical hanger arm is arranged at the center position of the positioning plate, a positioning assembly is connected to the vertical hanger arm, and the positioning assembly is fixed to the end position of the flat hanging arm.

7. A dust absorption device for a mechanical engraver according to claim 1, characterized in that: A hanger plate is fixed to the pressure air cylinder, the hanger plate is close to the end position of the pressure air cylinder, the center of the hanger plate is connected to the lower surface of the head slide through a shaft, and the hanger plate can rotate.

8. A dust extraction device for a mechanical engraver as claimed in claim 7, wherein: A tight washer is arranged on the shaft, a compression return spring is arranged between the tight washer and the hanger plate, and the compression return spring is arranged on the shaft.

9. A dust absorption device for a mechanical engraver according to claim 1, characterized in that: The turning obstacle arm is arranged beside the guide rail, the turning obstacle arm is in a vertical state and is connected to the guide rail through a U-shaped rod, and a return plate is arranged on the guide rail.

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