CN116393819A - Laser head of engraving machine - Google Patents

Abstract

The invention discloses a laser head of an engraving machine, which is used for being mounted at the lower end part of a laser and comprises a base body and a laser channel vertically penetrating through the base body, wherein an air blowing pipe interface and an air suction pipe interface are respectively arranged at two sides of the base body, the air blowing pipe interface is communicated with the laser channel, the bottom of the base body is inwards concave to form a first groove, an air suction hole is arranged on the surface of the first groove, and the air suction hole is communicated with the air suction pipe interface. The beneficial effects of the invention are as follows: the laser head integrates the air blowing pipe interface and the air suction pipe interface, can realize the air blowing and air suction functions at the lower end part of the laser, abandons the scheme of packing an acrylic cover, and therefore, the acrylic cover is not required to be frequently opened to take out engraving materials, and a large amount of space is saved.

Description

Laser head of engraving machine

Technical Field

The invention relates to the technical field of accessories of laser engraving machines, in particular to a laser head of an engraving machine.

Background

The small-sized laser engraving machine is widely applied to DIY manufacturing of small-sized products due to the characteristics of small size, easiness in operation and the like, and can process nonmetallic materials such as rubber plates, organic plates, plastic plates, acrylic plates, leather, fabrics and the like. When the ignition point of the material is low, fire may be generated during the laser engraving process. Or, when the material is not completely burned, a large amount of smoke is generated, and the high-concentration smoke is accumulated on the surface of the material for a long time, so that the surface of the material is fumigated to yellow and black, and the product is scrapped. In view of this, chinese patent No. 206662543U proposes a detachable two-axis laser engraving machine air-blowing flame retardant device, which is configured with a detachable flame retardant block, wherein air ejected from an air pump is concentrated in a cavity from three protruding air inlets, and then is blown onto an engraving work vertically from an air outlet, so as to reduce the temperature at a laser point, and to blow and scatter smoke near the laser point, so that the problem that the surface of a material is fumigated to yellow and black by the smoke can be basically solved.

However, the above technical scheme mainly realizes the dispersion of smog through the principle of blowing, can lead to the solid particle in the smog to disperse near the engraver fast, and human long-time inhalation harmful gas can lead to lung injury, so in certain schemes, can also increase an acrylic cover and seal whole engraver to set up an exhaust tube on the acrylic cover, take out the gas that contains a large amount of solid particles outdoors. However, under the scheme, the acrylic cover needs to be frequently uncovered to take out the carved work, and the acrylic cover also occupies a large amount of space and is not suitable for being used on a small-sized laser carving machine.

Disclosure of Invention

The invention provides a laser head of a carving machine, aiming at integrating a blowing structure and a suction structure into the laser head of the carving machine and realizing the miniaturization of the laser carving machine.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides an engraver laser head for install the lower tip at the laser instrument, including the base member, and vertically run through the laser passage of base member, the both sides of base member are provided with gas blowing pipe interface and breathing pipe interface respectively, the gas blowing pipe interface with laser passage intercommunication, the bottom indent of base member becomes first recess, the surface of first recess is provided with the suction port, the suction port with breathing pipe interface intercommunication.

In some embodiments, an air blowing channel is arranged in the base body, one end, away from the laser channel, of the air blowing channel is inclined upwards, the air blowing pipe interface is coaxially arranged with the air blowing channel, and the air blowing pipe interface is communicated with the laser channel through the air blowing channel.

In some embodiments, a cavity is arranged in the base body, the air suction hole is communicated with the air suction pipe interface through the cavity, and the cavity is not communicated with the air blowing channel and the laser channel.

In some embodiments, the interior of the base is provided with an air suction channel through which the air suction tube interface communicates with the cavity.

In some embodiments, the suction channel is transverse and the suction tube interface is disposed coaxially with the suction channel.

In some embodiments, the cavity is major arc shaped and horizontally disposed.

In some embodiments, the laser channel is taken as a center, two eccentric pairs of air suction holes are arranged on the surface of the first groove, one pair of air suction holes is defined as a near-center air suction hole, the other pair of air suction holes is defined as a telecentric air suction hole, the distance between the near-center air suction hole and the laser channel is smaller than the distance between the telecentric air suction hole and the laser channel, the near-center air suction holes are distributed on one side of the first groove close to the air suction pipe interface, and the telecentric air suction holes are distributed on one side of the first groove close to the air blowing pipe interface.

In some embodiments, the whole cavity is offset towards one side of the air blowing pipe interface, two end points of the cavity are arranged on one side close to the air blowing pipe interface, and two telecentric air suction holes are respectively connected with the two end points of the cavity.

In some embodiments, a second groove is disposed between two adjacent ones of the proximal and distal suction holes.

In some embodiments, the proximal suction hole and the peripheral edge of the distal suction hole are provided with chamfers.

The beneficial effects of the invention are as follows: the laser head integrates the air blowing pipe interface and the air suction pipe interface, can realize the air blowing and air suction functions at the lower end part of the laser, abandons the scheme of packing an acrylic cover, and therefore, the acrylic cover is not required to be frequently opened to take out engraving materials, and a large amount of space is saved.

Drawings

FIG. 1 is a perspective view of a laser head of an engraving machine according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a laser head of an engraving machine in accordance with an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a laser head of an engraving machine in accordance with an embodiment of the present invention;

FIG. 4 is a perspective view of a laser head of an engraving machine according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of the airflow direction of the laser head of the engraving machine according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating assembly of a laser head of an engraving machine according to an embodiment of the present invention;

wherein: 1-matrix, 2-laser channel, 3-air blowing pipe interface, 4-breathing pipe interface, 5-first recess, 6-suction hole, 7-cavity, 8-second recess, 9-laser, 10-bolt, 301-air blowing channel, 401-suction channel, 601-near heart suction hole, 602-telecentric suction hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

This embodiment provides a engraver laser head for install the lower tip at the laser instrument, it has integrated gas blowing pipe interface 3 and breathing pipe interface 4, can realize blowing and breathing function in the lower tip position of laser instrument, has abandoned the scheme that the acrylic cover wrapped up, consequently need not frequently to open the acrylic cover and take out carving material, and practiced thrift a large amount of spaces.

As shown in fig. 1, the laser head of the engraving machine comprises a base body 1 and a laser channel 2 vertically penetrating through the base body 1, wherein an air blowing pipe interface 3 and an air suction pipe interface 4 are respectively arranged on two sides of the base body 1, the air blowing pipe interface 3 is communicated with the laser channel 2, the bottom of the base body 1 is inwards concave to form a first groove 5, an air suction hole 6 is arranged on the surface of the first groove, and the air suction hole 6 is communicated with the air suction pipe interface 4.

In this embodiment, an air blowing pipe interface 3 communicated with the laser channel 2 is arranged on one side of the base body 1 to realize an air blowing and cooling function, a first groove 5 and an air suction hole 6 are arranged at the bottom of the base body 1 to provide a certain accommodating space for smoke, and finally, an air blowing pipe interface 3 communicated with the air suction hole 6 is arranged on the other side of the base body 1 to realize an air suction and smoke discharge function.

More specifically, the inside of the base body 1 is provided with an air blowing channel 301, one end of the air blowing channel 301 away from the laser channel 2 is inclined upwards, the air blowing pipe interface 3 is coaxially arranged with the air blowing channel 301, and the air blowing pipe interface 3 is communicated with the laser channel 2 through the air blowing channel 301. The blowing channel 301 is a structure after the base body 1 is perforated, air input by the air blowing pipe connector 3 obliquely downwards enters the laser channel 2 along the blowing channel 301, and most of the air flow is continuously downwards sprayed out along the laser channel 2 due to the downward trend of the air flow, so that the temperature of a laser point is reduced, high-concentration smoke is blown off, and the surface of a material is prevented from being fumigated Huang Xunhei.

To improve the effect of sucking smoke and discharging smoke, in an example, as shown in fig. 2, a cavity 7 is disposed in the base 1, the suction hole 6 is communicated with the suction pipe interface 4 through the cavity 7, and the cavity 7 is not communicated with the blowing channel 301 and the laser channel 2, so as to spatially isolate the cavity 7 from the blowing structure (including the blowing channel 301 and the laser channel 2), and avoid that the negative pressure provided by the suction channel 401 affects the positive pressure blowing effect provided by the blowing pipe interface 3. In this scheme, the space that cavity 7 provided can temporarily hold smog, and through experimental comparison, the phenomenon of yellowing of material surface is obviously reduced.

With continued reference to fig. 2, the base 1 is provided with an air suction channel 401 inside, and the air suction port 4 communicates with the chamber 7 through the air suction channel 401. To sum up, the above structure analyzes the gas flow direction, and as shown by the dotted line with arrow in fig. 5, the gas passes through the gas blowing pipe interface 3, the gas blowing channel 301, and the laser channel 2 in order to reach the first groove 5, then passes through the gas suction hole 6, the cavity 7, and the gas suction channel 401 in order, and finally is discharged from the gas suction pipe interface 4. The air flow direction is unique, and the blowing and the suction processes can not interfere with each other.

More specifically, to reduce the processing difficulty, the air suction channel 401 is horizontally arranged, and the air suction pipe interface 4 is coaxially arranged with the air suction channel 401.

More preferably, in an example, as shown in fig. 3, the cavity 7 is in a major arc shape and is horizontally arranged, with the purpose of avoiding the blowing channel 301 and the laser channel 2 and obtaining a larger space.

In order to obtain the optimal air suction and smoke discharge effect, as shown in fig. 4, two eccentric pairs of air suction holes 6 are arranged on the surface of the first groove 5 by taking the laser channel 2 as the center, wherein one pair of air suction holes 6 is defined as a near-center air suction hole 601, the other pair of air suction holes is defined as a telecentric air suction hole 602, the distance between the near-center air suction hole 601 and the laser channel 2 is smaller than the distance between the telecentric air suction hole 602 and the laser channel 2, the near-center air suction hole 601 is distributed on one side of the first groove 5 close to the air suction pipe interface 4, and the telecentric air suction hole 602 is distributed on one side of the first groove 5 close to the air blowing pipe interface 3. In this solution, the negative pressure provided by the air suction pipe interface 4 is dispersed to the near-heart air suction hole 601 and the telecentric air suction hole 602 through the major arc cavity 7, but because the near-heart air suction hole 601 is closer to the air suction channel 401, according to the gas pressure flow principle, the near-heart air suction hole 601 on the side close to the air suction pipe interface 4 should be closer to the laser channel 2, and the telecentric air suction hole 602 on the side close to the air blowing pipe interface 3 should be relatively far away from the laser channel 2, so that the same and uniform suction force is obtained to the near-heart air suction hole 601 and the telecentric air suction hole 602, and the smoke is prevented from being deposited on the surface of the first groove 5.

More preferably, the laser channel 2 is taken as the center, the included angle of the two near-center air suction holes 601 is 120 degrees, the included angle of the two telecentric air suction holes 602 is 60 degrees, and the purpose of the device is to more conveniently suck the smoke blown off by the air blowing channel 301 in time.

Alternatively, referring to fig. 3 and 4, the cavity 7 is entirely offset toward one side of the air blowing pipe interface 3, and two end points of the cavity 7 are disposed on one side close to the air blowing pipe interface 3, and two telecentric air suction holes 602 are respectively connected with two end points of the cavity 7. In this scheme, the whole cavity 7 that offsets towards one side of the air blowing pipe interface 3 can dodge the air blowing passageway 301 to a certain extent, and more importantly, because two extreme points of cavity 7 set up in the one side that is close to the air blowing pipe interface 3, consequently two telecentric suction holes 602 can directly upwards be connected to two extreme points of cavity 7 with shortest distance, shorten the extraction distance to discharge smog from first recess 5 promptly. In addition, two near-heart suction holes 601 can also be directly connected to the cavity 7 upwards, so as to obtain the shortest suction path. Furthermore, the suction channel 401 may be connected to the arc-shaped vertex of the cavity 7, so as to obtain the same suction path to the two near-center suction holes 601 (telecentric suction holes 602).

Obviously, in the case where there are four or more suction holes 6, the cavity 7 should not be made annular, but should be made in the shape of the major arc described above. For the scheme of the two near-center air suction holes 601 and the two telecentric air suction holes 602, the smoke at the first groove 5 is sucked into the cavity 7 by the near-center air suction holes 601 and the telecentric air suction holes 602, and the smoke sucked at the telecentric air suction holes 602 enters the arc-shaped end points of the cavity 7 due to the fact that the cavity 7 is in a major arc shape, passes through the upper parts of the adjacent near-center air suction holes 601 along the way, then is collected to the arc-shaped top points of the cavity 7 together with the smoke sucked by the near-center air suction holes 601, and finally is discharged from the air suction pipe interface 4 through the air suction channel 401.

More preferably, in an example, as shown in fig. 2, a second groove 8 is arranged between two adjacent proximal suction holes 601 and telecentric suction holes 602, so that the second groove 8 can enlarge the accommodating space between the proximal suction holes 601 and the telecentric suction holes 602, and avoid high-concentration smoke from being deposited between the proximal suction holes 601 and the telecentric suction holes 602.

The peripheral edges of the near-center suction hole 601 and the far-center suction hole 602 are provided with chamfers, so that the suction range of the suction holes is increased.

Referring to fig. 6, the top edge of the base 1 is provided with a positioning post and a screw hole, the lower end of the laser 9 is provided with a positioning hole and a fixing hole corresponding to the positioning post and the screw hole, and the base 1 can be fixed at the lower end of the laser 9 by a bolt 10. Not shown are the blow pipe and the suction pipe, and it is envisioned that the blow pipe and the suction pipe may be mounted on the blow pipe interface 3 and the suction pipe interface 4, respectively, and moved with the laser 9.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the essence of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a engraver laser head for install the lower tip at the laser instrument, its characterized in that includes the base member, and vertically runs through the laser passage of base member, the both sides of base member are provided with gas blowing pipe interface and breathing pipe interface respectively, the gas blowing pipe interface with laser passage intercommunication, the bottom indent of base member becomes first recess, the surface of first recess is provided with the suction port, the suction port with breathing pipe interface intercommunication.

2. The engraving machine laser head of claim 1, wherein an air blowing channel is provided in the base body, one end of the air blowing channel away from the laser channel is inclined upward, the air blowing pipe interface is coaxially provided with the air blowing channel, and the air blowing pipe interface is communicated with the laser channel through the air blowing channel.

3. The engraver laser head of claim 2, wherein a cavity is provided within the base, the suction hole communicates with the suction pipe interface through the cavity, and the cavity is not in communication with both the blowing channel and the laser channel.

4. The engraver laser head of claim 3 wherein an air suction channel is provided within said base, said air suction channel communicating with said cavity through said air suction channel.

5. The engraver laser head of claim 4 wherein said suction channel is transverse and said suction tube interface is coaxially disposed with said suction channel.

6. The engraver laser head of claim 3 wherein said cavity is major arc shaped and horizontally disposed.

7. The engraving machine laser head of claim 6 wherein two eccentric pairs of said suction holes are provided on the surface of said first groove centered on said laser channel, one pair of said suction holes being defined as a near-center suction hole and the other pair of said suction holes being defined as a telecentric suction hole, and the distance between said near-center suction hole and said laser channel being smaller than the distance between said telecentric suction hole and said laser channel, said near-center suction hole being distributed on the side of said first groove near said suction pipe interface, said telecentric suction hole being distributed on the side of said first groove near said blowing pipe interface.

8. The engraving machine laser head of claim 7 wherein said cavity is entirely offset to one side of said air-blowing pipe interface, and two end points of said cavity are disposed on one side adjacent said air-blowing pipe interface, and two said telecentric suction holes are respectively connected to two end points of said cavity.

9. The engraver laser head of claim 8 wherein a second recess is provided between two adjacent said near-center suction holes and said telecentric suction holes.

10. The engraver laser head of claim 7, wherein peripheral edges of the proximal suction hole and the distal suction hole are provided with chamfers.

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