CN112828288A

CN112828288A - Circulating collection system for cleaning powder of selective laser melting equipment

Info

Publication number: CN112828288A
Application number: CN201911163408.XA
Authority: CN
Inventors: 张成林; 周兵兵; 王亮; 宗进; 罗贤国
Original assignee: Anhui Tuobao Additional Material Manufacturing Technology Co ltd
Current assignee: Anhui Tuobao Additional Material Manufacturing Technology Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-05-25

Abstract

The invention discloses a circular collecting system for cleaning powder of selective laser melting equipment, which belongs to the technical field of selective laser melting and comprises a rack, a cleaning bin with cleaning equipment arranged therein and a circular collecting system thereof, wherein the cleaning bin is arranged on the rack, the circular collecting system consists of a blast box with air blowing equipment arranged therein, a multi-stage dust collecting system and a multi-stage filtering system thereof, an outlet of the blast box is communicated with the cleaning bin through a pipeline, the cleaning bin is communicated with an inlet of the multi-stage dust collecting system through a pipeline, an outlet of the multi-stage dust collecting system is communicated with an inlet of the multi-stage filtering system through a pipeline, and an outlet of the multi-stage filtering system is communicated with the blast box through a pipeline. The collection efficiency and the collection quality of the powder are improved, and convenience is brought to actual production.

Description

Circulating collection system for cleaning powder of selective laser melting equipment

Technical Field

The invention belongs to the technical field of selective laser melting molding, and particularly relates to a circulating collection system for cleaning selective laser melting equipment powder.

Background

At present, the development of selective laser melting in the direction of directly manufacturing metal parts by using a rapid prototyping technology is a new rapid prototyping technology capable of directly prototyping high-density high-precision metal parts.

The working principle of selective laser melting is to make the designed three-dimensional model undergo the processes of slicing dispersion and scanning path planning to obtain the slice profile information capable of controlling laser beam scanning, then the computer can make layer-by-layer circumferential feeding of slice profile information, and control laser beam to selectively melt metal powder by means of scanning galvanometer, and can be stacked layer-by-layer to form the three-dimensional entity identical to model.

When the selective laser melting operation is performed, metal powder remains on the surface of the stacked three-dimensional solid, and the metal powder can be used as a raw material for the next selective laser melting operation, so that when the selective laser melting operation is performed, the metal powder needs to be collected, the three-dimensional solid can be maintained in an attractive appearance, and the resource utilization rate can be improved.

When collecting the powder among the prior art, the effect is relatively poor, and efficiency is lower.

Disclosure of Invention

The invention discloses a circular collecting system for cleaning powder of selective laser melting equipment, aiming at solving the defects.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a be used for district selection laser melting equipment powder to clear up with circulation collecting system, includes the frame, sets up the built-in clearance storehouse and the circulation collecting system that has cleaning equipment that has in the frame, circulation collecting system comprises the blast box, multistage dust collecting system and the multistage filtration system that have air-blast equipment, and the export of blast box passes through the pipeline intercommunication with the clearance storehouse, and the entry intercommunication of clearance storehouse through pipeline and multistage dust collecting system, the entry intercommunication of multistage dust collecting system's export through pipeline and multistage filtration system, and the export of multistage filtration system passes through pipeline and blast box intercommunication.

Preferably, the cleaning bin is provided with an air inlet and an air outlet, the outlet of the blast box is connected with the air inlet through a pipeline, the cleaning equipment arranged in the cleaning bin is connected with the air inlet through a corrugated pipe, and the inlet of the multi-stage dust collecting system is communicated with the air outlet through a pipeline.

Preferably, the multistage dust collecting system is composed of a first-stage cyclone dust collector, a second-stage cyclone dust collector, a first material bottle and a second material bottle, the first-stage cyclone dust collector is installed on the rack, an inlet of the first-stage cyclone dust collector is communicated with the air outlet through a pipeline, taps are arranged on an outlet of the first-stage cyclone dust collector and outlets of the second-stage cyclone dust collector and communicated through a pipeline, an outlet of the lower end of the tap on the outlet of the first-stage cyclone dust collector is communicated with the first material bottle through a pipeline, an outlet of the lower end of the tap on the outlet of the second-stage cyclone dust collector is communicated with the second material bottle through a pipeline, and an outlet of the side end of the tap on the outlet of the second-stage cyclone dust collector is.

Preferably, the multistage filtration system is by installing the one-level filter in the frame, the secondary filter, collection box and feed flask three are constituteed, and the upper end of one-level filter and secondary filter is equipped with feed inlet and air current export, the lower extreme is equipped with the discharge gate, and the discharge gate passes through pipeline and collection box intercommunication, the lower extreme of collection box passes through pipeline and three intercommunications of feed flask, the export of the side of the tap on the export of secondary cyclone's dust collector passes through the pipeline intercommunication with the feed inlet on the one-level filter, the air current export on the one-level filter passes through pipeline and the feed inlet intercommunication on the secondary filter, the air current export on the secondary filter passes through.

Preferably, the primary cyclone dust collector and the secondary cyclone dust collector are respectively provided with a plurality of taps, the outlets of the primary cyclone dust collectors are respectively provided with a tap, the taps are connected in series through a pipeline, the outlets of the secondary cyclone dust collectors are respectively provided with a tap, and the taps are connected in series through a pipeline.

Preferably, the primary filter and the secondary filter are respectively provided with a plurality of primary filters, airflow outlets of the plurality of primary filters are connected in series through pipelines, and airflow outlets of the plurality of secondary filters are connected in series through pipelines.

The invention has the advantages that: when the powder cleaning device is used, a three-dimensional model to be subjected to powder cleaning is placed in a cleaning bin, cleaning equipment in the cleaning bin is used for cleaning, when cleaning is performed, air blowing equipment in a blowing box is started, air flow is blown into the cleaning equipment through a pipeline after the air blowing equipment is started, the cleaning equipment blows the air flow to the three-dimensional model and enters a primary cyclone dust collector through an air outlet through the pipeline, the primary cyclone dust collector collects the powder in the air flow, a large amount of powder is collected in the primary cyclone dust collector, the powder is collected through a first material bottle, at the moment, more powder still exists in the air flow, then the air flow enters a secondary cyclone dust collector through the pipeline, the secondary cyclone dust collector collects the powder in the air flow, a large amount of remaining powder is collected in a secondary cyclone dust collector, the powder is collected through a second material bottle, at the moment, a part of powder still exists in the air flow, then the air current enters a primary filter through a pipeline for filtering, the rest powder basically collects in the primary filter, then enters a recovery box and is collected by a material bottle III, then the air current enters a secondary filter, the secondary filter collects the powder remained in the air current, then enters the recovery box and is collected by the material bottle III, finally the air current doped with trace (or undoped) powder flows back to a blast device in a blast box through the pipeline, and then enters a cleaning device in a cleaning bin for recycling, and in the circulating process, the powder is circularly collected, so that the powder collection efficiency and the powder collection quality are improved.

According to the invention, the multi-stage dust collecting system and the multi-stage filtering system are designed to form a circulating system for collecting powder, so that the powder collecting efficiency and the powder collecting quality are improved, and convenience is brought to actual production.

Drawings

Fig. 1 and 2 are schematic structural views of the present invention.

FIG. 3 is a schematic view of a primary filter and its secondary filter;

FIG. 4 is a functional block diagram of the present invention;

the device comprises a machine frame 1, a cleaning bin 2, a blowing box 3, an air inlet 4, an air outlet 5, a primary filter 61, a secondary filter 62, a recovery box 7, a material bottle III 9, a primary cyclone dust collector 10, a material bottle I, a secondary cyclone dust collector 11, a material bottle II, a material inlet 13, a material outlet 14 and an air flow outlet 15.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.

As shown in fig. 1 to 4, a circulation collection system for cleaning powder of selective laser melting equipment comprises a frame 1, a cleaning bin 2 with built-in cleaning equipment and arranged on the frame 1, and a circulation collection system thereof, wherein the circulation collection system comprises a blast box 3 with built-in air blowing equipment, a multi-stage dust collection system and a multi-stage filtration system thereof, an outlet of the blast box 3 is communicated with the cleaning bin 2 through a pipeline, the cleaning bin 2 is communicated with an inlet of the multi-stage dust collection system through a pipeline, an outlet of the multi-stage dust collection system is communicated with an inlet of the multi-stage filtration system through a pipeline, and an outlet of the multi-stage filtration system is communicated with the blast box 3 through a pipeline.

In this embodiment, be equipped with air intake 4 and air outlet 5 on clearance storehouse 2, pass through the pipe connection between 4 of blast box 3 and the air intake 5, the cleaning equipment of built-in inside clearance storehouse 2 passes through the bellows with air intake 5 and is connected, and the import of multistage dust collecting system passes through the pipeline and communicates with air outlet 4.

In this embodiment, the multi-stage dust collecting system is composed of a primary cyclone dust collector 9, a secondary cyclone dust collector 11, a first material bottle 10 and a second material bottle 12 which are mounted on the frame 1, an inlet of the primary cyclone dust collector 9 is communicated with the air outlet 4 through a pipeline, taps are arranged on an outlet of the primary cyclone dust collector 9 and outlets of the secondary cyclone dust collector 11, the two taps are communicated with each other through a pipeline, an outlet at the lower end of the tap on the outlet of the primary cyclone dust collector 9 is communicated with the first material bottle 10 through a pipeline, an outlet at the lower end of the tap on the outlet of the secondary cyclone dust collector 9 is communicated with the second material bottle 12 through a pipeline, and an outlet at the side end of the tap on the outlet of the secondary cyclone dust collector 11 is communicated with an inlet of the multi-stage filtering system through a.

In this embodiment, the multistage filtration system is composed of a first-stage filter 61, a second-stage filter 62, a recycling bin 7 and a third material bottle 8, wherein the first-stage filter 61 and the second-stage filter 62 are provided with a feeding port 13 and an air flow outlet 15 at the upper ends thereof, the lower ends thereof are provided with a discharging port 14, the discharging port 14 is communicated with the recycling bin 7 through a pipeline, the lower end of the recycling bin 7 is communicated with the third material bottle 8 through a pipeline, the outlet of the side end of a tap on the outlet of the second-stage cyclone dust collector 11 is communicated with the feeding port 13 on the first-stage filter 61 through a pipeline, the air flow outlet 15 on the first-stage filter 61 is communicated with the feeding port 13 on the second-stage filter 62 through a pipeline, and.

In this embodiment, the primary cyclone dust collector 9 and the secondary cyclone dust collector 11 are respectively provided with a plurality of taps, the outlets of the primary cyclone dust collectors 9 are connected in series through a pipeline, the outlets of the secondary cyclone dust collectors 11 are provided with taps, and the taps are connected in series through a pipeline, so as to further improve the powder collection effect.

In this embodiment, each of the primary filter 61 and the secondary filter 62 is provided with a plurality of air outlets 15, the air outlets 15 of the primary filters 61 are connected in series through a pipeline, and the air outlets 15 of the secondary filters 62 are connected in series through a pipeline, so as to further improve the powder collecting effect.

When the powder cleaning device is used, a three-dimensional model to be subjected to powder cleaning is placed in a cleaning bin 2, cleaning equipment in the cleaning bin 2 is used for cleaning, when cleaning is carried out, air blowing equipment in a blowing box 3 is started, after the air blowing equipment is started, air flow is blown into the cleaning equipment through a pipeline, the cleaning equipment blows the air flow to the three-dimensional model and enters a primary cyclone dust collector 9 through an air outlet 5 through the pipeline, the primary cyclone dust collector 9 collects the powder in the air flow, a large amount of powder can be collected in the primary cyclone dust collector 9, and then a material bottle I10 is used for collecting the powder, at the moment, the air flow still contains more powder, then the air flow enters a secondary cyclone dust collector 11 through the pipeline, the secondary cyclone dust collector 11 collects the powder in the air flow, a large amount of the rest powder can be collected in the secondary cyclone dust collector 11 and then is collected by the material bottle II 12, at the moment, the airflow still contains a part of powder, then the airflow enters a primary filter 61 through a pipeline for filtering, the rest powder is basically collected in the primary filter 61, then enters a recovery box 7 and is collected by a material bottle III 8, then the airflow enters a secondary filter 62, the secondary filter 62 collects the powder remained in the airflow, then enters the recovery box 7 and is collected by the material bottle III 8, finally the airflow doped with trace (or undoped) powder flows back to the air blowing device in the air blowing box 3 through the pipeline, and then enters the cleaning device in the cleaning bin 2 for recycling, and in the recycling process, the powder is recycled, so that the powder collection efficiency and the collection quality are improved.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various insubstantial modifications of the invention based on the principles and technical solutions of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims

1. The utility model provides a be used for selective laser melting equipment powder clearance to use circulation collecting system, includes frame (1), sets up clearance storehouse (2) and circulation collecting system that built-in on frame (1) has cleaning equipment, its characterized in that: the circulating collection system is composed of a blast box (3) with built-in blast equipment, a multi-stage dust collection system and a multi-stage filtering system, wherein an outlet of the blast box (3) is communicated with a cleaning bin () through a pipeline, the cleaning bin (2) is communicated with an inlet of the multi-stage dust collection system through a pipeline, an outlet of the multi-stage dust collection system is communicated with an inlet of the multi-stage filtering system through a pipeline, and an outlet of the multi-stage filtering system is communicated with the blast box (3) through a pipeline.

2. The recycling collection system for selective laser melting equipment powder cleaning according to claim 1, wherein: the air cleaning device is characterized in that an air inlet (4) and an air outlet (5) are arranged on the cleaning bin (2), an outlet of the blast box (3) is connected with the air inlet (4) through a pipeline, cleaning equipment arranged in the cleaning bin (3) is connected with the air inlet (4) through a corrugated pipe, and an inlet of the multi-stage dust collecting system is communicated with the air outlet (5) through a pipeline.

3. The recycling collection system for selective laser melting equipment powder cleaning according to claim 2, wherein: the multi-stage dust collecting system consists of a first-stage cyclone dust collector (9), a second-stage cyclone dust collector (11), a first material bottle (10) and a second material bottle (12) which are arranged on the frame (1), the inlet of the first-stage cyclone dust collector (9) is communicated with the air outlet (5) through a pipeline, taps are arranged on the outlet of the first-stage cyclone dust collector (9) and the outlet of the second-stage cyclone dust collector (11), the two taps are communicated through a pipeline, the outlet at the lower end of the tap on the outlet of the primary cyclone dust collector (9) is communicated with the first material bottle (10) through a pipeline, the outlet at the lower end of the tap on the outlet of the secondary cyclone dust collector (11) is communicated with the second material bottle (12) through a pipeline, and the outlet of the side end of the tap on the outlet of the secondary cyclone dust collector (11) is communicated with the inlet of the multi-stage filtering system through a pipeline.

4. The recycling collection system for selective laser melting equipment powder cleaning according to claim 3, wherein: the multistage filtering system consists of a first-stage filter (61), a second-stage filter (62), a recovery box (7) and a material bottle III (8) which are arranged on the frame (1), the upper ends of the first-stage filter (61) and the second-stage filter (62) are provided with a feed inlet (13) and an air outlet (15), the lower ends are provided with a discharge outlet (14), the discharge port (14) is communicated with the recovery box (7) through a pipeline, the lower end of the recovery box (7) is communicated with the third material bottle (8) through a pipeline, an outlet of the side end of a tap on the outlet of the secondary cyclone dust collector (11) is communicated with a feed port on the primary filter (61) through a pipeline, an airflow outlet (15) on the primary filter (61) is communicated with a feed port (13) on the secondary filter (62) through a pipeline, and an airflow outlet (15) on the secondary filter (62) is communicated with the blast box (3) through a pipeline.

5. The recycling collection system for selective laser melting equipment powder cleaning according to claim 3, wherein: first-level cyclone dust collector (9) and second grade cyclone dust collector (11) all are equipped with a plurality ofly respectively, and the position of the export of a plurality of first-level cyclone dust collectors (9) all is equipped with the tap, and the tap is in the same place through the pipeline series connection, and the position of the export of a plurality of second grade cyclone dust collectors (11) all is equipped with the tap, and the tap is in the same place through the pipeline series connection.

6. The recycling collection system for selective laser melting equipment powder cleaning according to claim 3, wherein: the primary filter (61) and the secondary filter (62) are respectively provided with a plurality of air flow outlets (15) of the primary filters (61) which are connected in series through pipelines, and the air flow outlets (15) of the secondary filters (62) which are connected in series through pipelines.