CN210230972U

CN210230972U - Laser sintering waste gas collection device

Info

Publication number: CN210230972U
Application number: CN201921244472.6U
Authority: CN
Inventors: Jianyuan Hu; 胡建元
Original assignee: Guizhou Feiyunling Pharmaceutical Co ltd
Current assignee: Hongyun Pharmaceutical Guizhou Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-04-03
Anticipated expiration: 2029-08-02

Abstract

The utility model provides a laser sintering exhaust gas collection device, relates to the pharmaceutical equipment field, and it includes interconnect's first pipeline and second pipeline. Wherein, the second pipeline is flexible hose, and flexible length and angle can be adjusted at will to flexible hose to reach better air exhaust effect. The exhaust gas pumped by the second pipeline enters the first pipeline through the air vent and is pumped away. The first pipeline is provided with the apron in vent department, and when normal during operation, apron top formation negative pressure, the gas in the second pipeline can upwards push open the apron, guarantees to bleed smoothly. When the vacuum pump breaks down or the first pipeline is blocked to damage the negative pressure environment, the cover plate can fall back to cover the air vent in time, and the exhaust gas pumped away in the first pipeline is prevented from flowing backwards. This laser sintering exhaust gas collection device's simple structure, convenient operation can effectively handle the waste gas that produces among the laser sintering process, and the protection staff's is healthy.

Description

Laser sintering waste gas collection device

Technical Field

The utility model relates to a pharmaceutical equipment field particularly, relates to a laser sintering waste gas collection device.

Background

Laser marking technology is one of the largest application areas of laser processing. Laser marking is a marking method in which a workpiece is irradiated locally with high-energy-density laser to vaporize a surface layer material or to undergo a chemical reaction of color change, thereby leaving a permanent mark. The laser marking can print various characters, symbols, patterns and the like, and the size of the characters can be from millimeter to micron, which has special significance for the anti-counterfeiting of products.

In the pharmaceutical process, the laser marking technology is also widely applied, such as anti-counterfeiting marking, production date and the like on medicine bottles and medicine boxes. However, in the existing laser marking process, waste gas caused by vaporization of a surface layer material cannot be well treated, and the body of a worker is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laser sintering exhaust gas collection device, its simple structure, convenient operation can the effective processing laser sintering in-process waste gas that produces, and protection staff's is healthy.

The embodiment of the utility model is realized like this:

a laser sintering waste gas collecting device comprises a first pipeline and a second pipeline which are connected with each other; the first pipeline is arranged along the vertical direction, one end of the first pipeline, which is far away from the second pipeline, is communicated with the vacuum pump, and one end of the first pipeline, which is close to the second pipeline, is provided with a vent; the air vent is arranged along the vertical direction, and the first pipeline and the second pipeline are communicated through the air vent; a cover plate used for covering the air vent is arranged above the air vent, and one end of the cover plate is hinged with the first pipeline, so that the cover plate can be turned towards the inside of the first pipeline along the hinged end, and the air vent below the cover plate is exposed; the second pipeline is a flexible hose.

Further, in other preferred embodiments of the present invention, the first pipeline is provided with an exhaust port on the pipe wall near the vent; the exhaust port is communicated with an air bag arranged outside the first pipeline.

Further, in other preferred embodiments of the present invention, the air bag is detachably connected to the first pipe.

Further, in other preferred embodiments of the present invention, the connection mode between the air bag and the first pipeline is a threaded connection or a snap connection.

Further, in other preferred embodiments of the present invention, the vent is provided with a sealing cushion ring, and the sealing cushion ring is disposed around the vent along the upper edge of the vent.

Further, in other preferred embodiments of the present invention, the second pipeline is provided with an air exhaust opening at one end far away from the first pipeline, and the air exhaust opening is provided with a foldable shielding piece; the shielding piece comprises a rotating shaft, a supporting part and a flexible connecting part; the rotating shaft is arranged at the lower edge of the air extraction opening, is arranged along the radial direction of the second pipeline and penetrates through the pipe wall of the second pipeline, and divides the lower edge of the air extraction opening into a first edge and a second edge; the supporting part is in an arc shape, and two ends of the supporting part are respectively in rotating connection with two ends of the rotating shaft; the supporting part is connected with the first edge through a flexible connecting part.

Further, in other preferred embodiments of the present invention, the diameter of the supporting portion is slightly larger than the diameter of the second pipe.

Further, in other preferred embodiments of the present invention, a plurality of auxiliary supporting portions are further disposed between the supporting portion and the first edge, each auxiliary supporting portion is arc-shaped, two ends of each auxiliary supporting portion are rotatably connected to two ends of the rotating shaft, and the flexible connecting portion is divided into a plurality of sub-connecting portions by the plurality of auxiliary supporting portions; the two adjacent auxiliary supporting parts are connected through the sub-connecting part, and the auxiliary supporting part closest to the supporting part is connected with the supporting part through the sub-connecting part; the auxiliary support part closest to the first edge is connected with the first edge through the sub-connecting part.

Further, in other preferred embodiments of the present invention, the first pipe and the second pipe are detachably connected.

Further, in other preferred embodiments of the present invention, the connection mode between the first pipe and the second pipe is a threaded connection or a snap connection.

The embodiment of the utility model provides a beneficial effect is:

the embodiment of the utility model provides a laser sintering exhaust gas collecting device, it includes interconnect's first pipeline and second pipeline. Wherein, the second pipeline is flexible hose, and flexible length and angle can be adjusted at will to flexible hose to reach better air exhaust effect. The exhaust gas pumped by the second pipeline enters the first pipeline through the air vent and is pumped away. The first pipeline is provided with the apron in vent department, and when normal during operation, apron top formation negative pressure, the gas in the second pipeline can upwards push open the apron, guarantees to bleed smoothly. When the vacuum pump breaks down or the first pipeline is blocked to damage the negative pressure environment, the cover plate can fall back to cover the air vent in time, and the exhaust gas pumped away in the first pipeline is prevented from flowing backwards. This laser sintering exhaust gas collection device's simple structure, convenient operation can effectively handle the waste gas that produces among the laser sintering process, and the protection staff's is healthy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a laser sintering exhaust gas collecting device according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a laser sintering exhaust gas collecting device at II according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of a laser sintering exhaust gas collecting device at position III according to an embodiment of the present invention.

Icon: 100-laser sintering waste gas collecting device; 110-a first conduit; 111-vent; 112-a cover plate; 113-an exhaust port; 114-an air bag; 120-a second conduit; 121-an air extraction opening; 1211 — a first edge; 1212 — a second edge; 122-a shield; 1221-a rotating shaft; 1222-a support; 1223-a flexible connection; 1224-an auxiliary support; 200-laser sintering device.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present embodiment provides a laser sintering exhaust gas collecting device 100, which includes a first pipe 110 and a second pipe 120 connected to each other.

As shown in fig. 1 and 2, the first pipe 110 is disposed in a vertical direction, an end of the first pipe 110, which is far from the second pipe 120, is communicated with a vacuum pump (not shown), and an end of the first pipe 110, which is near to the second pipe 120, is provided with a vent 111. The vent 111 is disposed in a vertical direction, and the first duct 110 and the second duct 120 are communicated by the vent 111. When the vacuum pump is operated, a negative pressure is formed in the first pipe 110 and the second pipe 120, and an end of the second pipe 120 far away from the first pipe 110 extends to a position above the operation table of the laser sintering device 200 to extract the exhaust gas. The first pipe 110 and the second pipe 120 are detachably connected, and the connection mode can be a threaded connection or a snap connection.

A cover plate 112 is arranged above the air vent 111, and the shape of the cover plate 112 is circular, and the diameter of the cover plate is larger than the aperture of the air vent 111. The cover plate 112 may completely cover the vent opening 111 in the case where the vacuum pump is not in operation. One end of the cover plate 112 is hinged to the first duct 110 such that the cover plate 112 can be flipped over along the hinged end into the first duct 110 to expose the vent 111 below. When the vacuum pump is operated, a negative pressure is formed in the first pipe 110, and the air in the second pipe 120 pushes up the cover plate 112 and enters the first pipe 110 to form a complete pumping channel. When the vacuum pump stops working or the first pipeline 110 is blocked to destroy the negative pressure environment, the cover plate 112 can fall back under the action of gravity to cover the air vent 111, so that the isolation effect is achieved, and the backflow of waste gas is prevented.

Further, as shown in fig. 1 and 2, the first duct 110 is provided with an exhaust port 113 on a duct wall near the vent 111; the exhaust port 113 communicates with an airbag 114 disposed outside the first duct 110. When the reverse flow occurs, the reverse flow of exhaust gas can enter the air bag 114 through the exhaust port 113, so as to avoid the transient over-high air pressure in the first pipeline 110. Optionally, the air bag 114 is detachably connected to the first conduit 110. The specific connection mode can adopt a threaded connection or a snap connection. The removable arrangement may facilitate repair and replacement of the bladder 114 by personnel.

Alternatively, the vent 111 may be provided with a sealing cushion ring (not shown), the sealing cushion ring is disposed around the vent 111 along the upper edge of the vent 111, and the sealing cushion ring may be made of rubber or the like. On one hand, the sealing buffer ring can play a certain buffer role when the cover plate 112 falls back, and the service life of the cover plate 112 is prolonged. On the other hand, the sealing cushion ring can increase the sealing performance between the cover plate 112 and the vent hole, and further prevent the exhaust gas from flowing backwards.

As shown in fig. 1 and 3, the second pipeline 120 is a flexible hose, the second pipeline 120 is provided with an air suction port 121 at an end far away from the first pipeline 110, the flexible hose itself is a common arrangement method in the art, and the specific structural shape thereof can refer to the prior art, which is not described herein again. Unlike the prior art, in the present embodiment, a foldable shutter 122 is disposed at the air suction port 121. The shutter 122 includes a rotation shaft 1221, a support portion 1222, and a flexible connection portion 1223. The rotation shaft 1221 is disposed at a lower edge of the suction opening 121, the rotation shaft 1221 is disposed along a radial direction of the second pipe 120 and penetrates a pipe wall of the second pipe 120, and the rotation shaft 1221 divides the lower edge of the suction opening 121 into a first edge 1211 and a second edge 1212. The supporting portion 1222 is arc-shaped, and two ends of the supporting portion 1222 are respectively rotatably connected to two ends of the rotating shaft 1221, and a diameter of the supporting portion 1222 is slightly larger than a diameter of the second duct 120. The support portion 1222 is connected to the first edge 1211 by a flexible connecting portion 1223. If necessary, a shield may be formed between the support 1222 and the first edge 1211 by standing the support 1222. The device can be mainly used in two aspects, including shielding the side direction of an extraction area when waste gas is extracted, and playing a role in preventing wind or increasing extraction force; or when the exhaust gas flows backward, the supporting member is moved from the first edge 1211 to the second edge 1212 directly, so as to seal the whole pumping hole 121 and prevent the exhaust gas that has not been pumped away from the second pipe 120 from escaping.

Further, a plurality of auxiliary supporting portions 1224 are further disposed between the supporting portion 1222 and the first edge 1211, each auxiliary supporting portion 1224 is arc-shaped, both ends of each auxiliary supporting portion 1224 are rotatably connected to both ends of the rotating shaft 1221, and the flexible connecting portion 1223 is divided into a plurality of sub-connecting portions (not labeled) by the plurality of auxiliary supporting portions 1224; two adjacent support parts 1224 are connected by a sub-connecting part, and the support part 1224 closest to the support part 1222 is connected to the support part 1222 by a sub-connecting part; the auxiliary support 1224 closest to the first edge 1211 is connected to the first edge 1211 via a sub-connecting portion. In this connection, the shielding member 122 is folded like a folding fan, so as to be better opened and stored.

To sum up, the embodiment of the present invention provides a laser sintering exhaust gas collecting device 100, which includes a first pipe 110 and a second pipe 120 connected to each other. Wherein, the second pipeline 120 is a flexible hose, and the flexible length and angle can be adjusted at will to the flexible hose to reach better air exhaust effect. The exhaust gas drawn from the second duct 120 is introduced into the first duct 110 through the air vent 111 and is drawn away. The cover plate 112 is disposed at the vent 111 of the first pipe 110, when the first pipe works normally, a negative pressure is formed above the cover plate 112, and the gas in the second pipe 120 can push the cover plate 112 upwards, so as to ensure smooth air exhaust. When the vacuum pump fails or the first pipe 110 is blocked to destroy the negative pressure environment, the cover plate 112 can fall back to cover the vent 111 in time to prevent the exhaust gas pumped from the first pipe 110 from flowing back. This laser sintering exhaust gas collection device 100's simple structure, convenient operation can effectively handle the waste gas that the laser sintering in-process produced, and the protection staff's is healthy.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The laser sintering waste gas collecting device is characterized by comprising a first pipeline and a second pipeline which are connected with each other; the first pipeline is arranged along the vertical direction, one end of the first pipeline, which is far away from the second pipeline, is communicated with the vacuum pump, and one end of the first pipeline, which is close to the second pipeline, is provided with a vent; the air vent is arranged in the vertical direction, and the first pipeline and the second pipeline are communicated through the air vent; a cover plate used for covering the air vent is arranged above the air vent, one end of the cover plate is hinged with the first pipeline, so that the cover plate can be turned towards the inside of the first pipeline along the hinged end, and the air vent below the cover plate is exposed; the second pipeline is a flexible hose.

2. The laser sintering exhaust gas collecting device according to claim 1, wherein the first pipe is provided with an exhaust port on a pipe wall near the vent; the exhaust port is communicated with an air bag arranged outside the first pipeline.

3. The laser sintering exhaust gas collecting device as claimed in claim 2, wherein the air bag is detachably connected with the first pipeline.

4. The laser sintering exhaust gas collecting device as claimed in claim 3, wherein the connection between the air bag and the first pipe is a threaded connection or a snap connection.

5. The laser sintering exhaust gas collection device of claim 4, wherein the vent opening is provided with a sealing cushion ring disposed around the vent opening along an upper edge of the vent opening.

6. The laser sintering exhaust gas collecting device as claimed in claim 1, wherein the second pipe is provided with an exhaust port at an end far away from the first pipe, and a foldable shielding member is arranged at the exhaust port; the shielding piece comprises a rotating shaft, a supporting part and a flexible connecting part; the rotating shaft is arranged at the lower edge of the air suction opening, arranged along the radial direction of the second pipeline and penetrates through the pipe wall of the second pipeline, and divides the lower edge of the air suction opening into a first edge and a second edge; the supporting part is arc-shaped, and two ends of the supporting part are respectively in rotating connection with two ends of the rotating shaft; the supporting part is connected with the first edge through a flexible connecting part.

7. The laser sintering exhaust gas collecting device according to claim 6, wherein the diameter of the support portion is slightly larger than that of the second pipe.

8. The laser sintering exhaust gas collecting device according to claim 7, wherein a plurality of additional supporting portions are further provided between the supporting portion and the first edge, each of the additional supporting portions is arc-shaped, both ends of each of the additional supporting portions are rotatably connected to both ends of the rotating shaft, and the flexible connecting portion is divided into a plurality of sub-connecting portions by the plurality of additional supporting portions; the two adjacent auxiliary supporting parts are connected through the sub-connecting part, and the auxiliary supporting part closest to the supporting part is connected with the supporting part through the sub-connecting part; the auxiliary support portion closest to the first edge is connected to the first edge through the sub-connecting portion.

9. The laser sintering exhaust gas collecting device of claim 1, wherein the first pipe and the second pipe are detachably connected.

10. The laser sintering exhaust gas collecting device as claimed in claim 1, wherein the connection between the first pipe and the second pipe is a threaded connection or a snap connection.