CN112591469A - Negative pressure vacuum station for 3D printing equipment - Google Patents

Negative pressure vacuum station for 3D printing equipment Download PDF

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Publication number
CN112591469A
CN112591469A CN202011362931.8A CN202011362931A CN112591469A CN 112591469 A CN112591469 A CN 112591469A CN 202011362931 A CN202011362931 A CN 202011362931A CN 112591469 A CN112591469 A CN 112591469A
Authority
CN
China
Prior art keywords
vacuum
negative pressure
air
tank
vacuum pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011362931.8A
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Chinese (zh)
Inventor
梁政权
赵龙
郝鹏
任广宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kocel Intelligent Machinery Ltd
Original Assignee
Kocel Intelligent Machinery Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kocel Intelligent Machinery Ltd filed Critical Kocel Intelligent Machinery Ltd
Priority to CN202011362931.8A priority Critical patent/CN112591469A/en
Publication of CN112591469A publication Critical patent/CN112591469A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/24—Gas suction systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention relates to the technical field of negative pressure, and provides a negative pressure vacuum station for 3D printing equipment, which comprises an air storage tank, a vacuum pump and a vacuum tank which are sequentially connected by pipelines; the vacuum tank is located the below of vacuum pump, the inside top of vacuum tank is equipped with the filter core, the filter core passes through the pipeline with the vacuum pump intercommunication the below of vacuum tank install with the canister of vacuum tank bottom intercommunication, the lateral wall of vacuum tank is equipped with at least one interface that admits air. Harmful gas and dust volatilized during conveying of the printing sand mold and the used sand can be effectively collected, air pollution inside a workshop is reduced, and a green operation environment is provided.

Description

Negative pressure vacuum station for 3D printing equipment
Technical Field
The invention relates to the technical field of negative pressure, in particular to an integrated negative pressure vacuum station for 3D printing equipment.
Background
In the working process of the sand mold 3D printing equipment, printing sand required by the sand mixing tank is conveyed to a hopper of the sand mixing tank by a vacuum pump. For practicing thrift the printing cost, every 3D printing apparatus can set up two hoppers usually, one of them hopper is used for holding new sand, another hopper is used for holding the used sand of recycle after printing, and need two vacuum pumps to carry new sand and used sand respectively to two hoppers, be unfavorable for 3D printing apparatus wiring mass production, contain resin and curing agent that can volatilize in the used sand after the printing, the used sand recovery in-process, can volatilize usually and cause operational environment air pollution, can not satisfy the greenization production requirement.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a negative pressure vacuum station for a 3D printing device.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a negative pressure vacuum station for a 3D printing device comprises an air storage tank, a vacuum pump and a vacuum tank; the air storage tank is communicated with the vacuum pump through a pipeline, and the vacuum tank is positioned below the vacuum pump; the inside of vacuum jar is provided with the filter core, the filter core will vacuum jar's inside divide into the chamber of admitting air and goes out the air cavity, vacuum jar's bottom be provided with the canister of the chamber intercommunication of admitting air, just vacuum jar be provided with the interface of admitting air of the chamber intercommunication of admitting air, the chamber of admitting air with the vacuum pump intercommunication.
Further, the filter core is cylindricly, has inside and outside three layer construction, the skin of filter core is the silk screen, and the intermediate level is the cassette, and the inlayer is the active carbon filter screen.
Furthermore, each air inlet connector is also provided with a negative pressure detection meter which is positioned outside the vacuum tank.
Further, the lateral wall of the waste tank is provided with a material level sensor.
Further, the bottom of the waste material tank is provided with a drain outlet, and the drain outlet is also provided with a drain valve.
Further, a filter and a safety valve are sequentially connected between the air storage tank and the vacuum pump.
Furthermore, a plurality of vacuum generating pipes are arranged in the vacuum pump side by side, the gas inlet ends of the vacuum generating pipes are compressed gas inlets, the compressed gas inlets are correspondingly provided with air inlet valves, and the air inlet valves are connected with the safety valves through pipelines; the side wall of the vacuum generating pipe is provided with an adsorption cavity inlet, a vacuum cavity is formed after the space where the adsorption cavity inlet is located is sealed, and the vacuum cavity is communicated with the air outlet cavity.
The invention has the beneficial effects that: the negative pressure vacuum station for the 3D printing equipment is provided, harmful gas and dust volatilized in conveying of printing sand molds and used sand can be effectively collected, air pollution inside a workshop is reduced, and a green operating environment is provided; can be through the closure of control admission valve and then control the operating condition that vacuum took place the pipe to this negative pressure value size of adjusting the air inlet interface department of vacuum jar, negative pressure value size is controllable, and a plurality of air inlet interfaces can provide the negative pressure for many 3D printing apparatus simultaneously, provide the efficiency of having improved the feed for 3D printing apparatus greatly.
Drawings
Fig. 1 is a schematic structural diagram of a negative pressure vacuum station for a 3D printing apparatus according to the present invention.
The device comprises a vacuum pump, a vacuum generating pipe, a vacuum tank, a filter, a safety valve, a vacuum pump, a vacuum inlet valve, a vacuum generating pipe, a vacuum tank, a filter element, a waste tank, a blowdown valve, a material level sensor and a negative pressure detector, wherein the vacuum pump comprises 100 parts, 200 parts, 300 parts, a safety valve, 400 parts, 410 parts, 420 parts.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
A negative pressure vacuum station for a 3D printing device comprises an air storage tank, a vacuum pump and a vacuum tank; the air storage tank is communicated with the vacuum pump through a pipeline, and the vacuum tank is positioned below the vacuum pump; the inside of vacuum jar is provided with the filter core, the filter core will vacuum jar's inside divide into the chamber of admitting air and goes out the air cavity, vacuum jar's bottom be provided with the canister of the chamber intercommunication of admitting air, just vacuum jar be provided with the interface of admitting air of the chamber intercommunication of admitting air, the chamber of admitting air with the vacuum pump intercommunication. The filtering action through the filter core and the collection effect of garbage bin, harmful gas, the dust that can effectively collect and clear up giving out in the sand used, reduce the inside air pollution in workshop, provide green operation environment.
The following description is presented in conjunction with a specific embodiment of a negative pressure vacuum station for a 3D printing apparatus to further illustrate the concepts of the present invention.
Referring to fig. 1, a negative pressure vacuum station for a 3D printing apparatus includes an air tank 100, a vacuum pump 400, and a vacuum tank 500 connected in sequence by pipes, wherein the vacuum tank 500 is located below the vacuum pump 400. In order to filter impurities entering the vacuum tank 500, a filter element 510 is disposed above the inside of the vacuum tank 500, and the inside of the vacuum tank 500 is divided into an air inlet chamber and an air outlet chamber by the filter element 510. The gas outlet cavity is communicated with the vacuum cavity of the vacuum pump 400. The filter element 510 is cylindrical and has an inner layer structure and an outer layer structure, wherein the outer layer structure is a stainless steel wire mesh and mainly filters large-particle impurities; the middle layer filter sheet mainly adsorbs particulate matters such as PM0.3-PM10, and the inner layer is an activated carbon filter screen which mainly removes the irritant odor of formaldehyde and harmful gases.
In order to collect the filtered impurities, a canister 520 is installed below the air inlet chamber of the vacuum tank 500 to communicate with the bottom of the vacuum tank 500. The lateral wall in chamber of admitting air is equipped with at least one interface of admitting air, and the quantity of the interface of admitting air is corresponding with 3D printing apparatus's sand hopper quantity, guarantees to provide the negative pressure for every sand hopper. And a negative pressure detection meter 530 is arranged at each air inlet interface, the negative pressure detection meter 530 is positioned outside the air inlet cavity of the vacuum tank 500 and can detect the negative pressure value at the air inlet interface, and the negative pressure value at the air inlet interface can be freely set through a program. The sidewall of the canister 520 is provided with a level sensor 540 that can detect the internal level of the canister 520, and the bottom of the canister 520 is provided with a drain outlet, where a drain valve 550 is also provided. After the internal level of the canister 520 reaches the upper limit, the level sensor 540 sends a signal, the waste valve 550 opens, and the waste is discharged from the drain.
In the embodiment of the present invention, in order to ensure the improvement of the quality of the air introduced into the vacuum pump, a filter 200 is provided at the air container 100 and the vacuum pump 400 for filtering impurities in the compressed gas in the air container 100, and a safety valve 300 is connected behind the filter 200 for controlling the on/off of the compressed gas. The safety valve 300 can ensure that the pressure of the inflowing compressed gas is within a set value range, and if the fluctuation of the inflowing compressed gas is too large or exceeds the allowable pressure requirement, the safety valve 300 automatically closes and sends out an alarm signal, and the vacuum pump 400 stops running.
In the embodiment of the present invention, a plurality of vacuum generating tubes 430 are arranged in parallel inside the vacuum pump 400, one end of each vacuum generating tube is a compressed gas inlet, the compressed gas inlet is correspondingly provided with an air inlet valve 420, and the air inlet valve 420 is connected with the safety valve 300 through a pipeline; the side wall of the vacuum generating pipe is provided with an adsorption cavity inlet, the space where the adsorption cavity inlet is located is sealed to form a vacuum cavity, and the vacuum cavity is communicated with the air outlet cavity. The vacuum value at the air inlet interface of the vacuum tank 500 can be adjusted by controlling the closing of the air inlet valve 420 to control the working state of the vacuum generating tube 430 and to place the vacuum chamber in a negative pressure state. The number of vacuum generating tubes 430 can be increased or decreased as required by the application.
A negative pressure vacuum station for 3D printing apparatus, the specific working process is as follows: compressed gas in the gas storage tank 100 enters the filter 200, and enters the vacuum pump 400 through the safety valve 300 after being filtered; when the compressed gas entering the vacuum pump 400 flows through the vacuum generating tube 430 through the air inlet valve 420, the air in the vacuum chamber where the inlet of the adsorption chamber is located is extracted, and negative pressure is generated in the vacuum chamber; meanwhile, the vacuum tank 500 communicated with the vacuum chamber generates continuous negative pressure; each air inlet interface of the air inlet cavity of the vacuum tank 500 is connected with a hopper of the 3D printing device, and the feeding requirement of the 3D printing device is met by the negative pressure environment of the vacuum tank 500 when the vacuum pump 400 continuously works. In the process of conveying used sand and printing sand molds, pollutants such as harmful gas and dust emitted by the used sand are filtered and collected, and air pollution inside a workshop is reduced.
In addition, in the existing process of 3D printing equipment, a plurality of vacuum pumps 400 are required to work simultaneously to meet the feeding requirement of the equipment, and the negative pressure vacuum station for the 3D printing equipment provided by the invention is connected with the hopper of the 3D printing equipment through a plurality of air inlet interfaces, so that the material using requirement of one or more equipment working simultaneously can be met. A plurality of interfaces of admitting air can provide the negative pressure for many 3D printing apparatus simultaneously, provides the efficiency of high feed for 3D printing apparatus greatly.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (7)

1. A negative pressure vacuum station for 3D printing equipment is characterized by comprising an air storage tank, a vacuum pump and a vacuum tank; the air storage tank is communicated with the vacuum pump through a pipeline, and the vacuum tank is positioned below the vacuum pump; the inside of vacuum jar is provided with the filter core, the filter core will vacuum jar's inside divide into the chamber of admitting air and goes out the air cavity, vacuum jar's bottom be provided with the canister of the chamber intercommunication of admitting air, just vacuum jar be provided with the interface of admitting air of the chamber intercommunication of admitting air, the chamber of admitting air with the vacuum pump intercommunication.
2. The negative-pressure vacuum station for the 3D printing equipment according to claim 1, wherein the filter element is cylindrical and has an inner layer structure and an outer layer structure, the outer layer of the filter element is a silk screen, the middle layer of the filter element is a filter sheet, and the inner layer of the filter element is an activated carbon filter screen.
3. The negative pressure vacuum station for a 3D printing apparatus according to claim 1, wherein each air inlet interface is further provided with a negative pressure detection gauge, and the negative pressure detection gauge is located outside the vacuum tank.
4. The negative pressure vacuum station for a 3D printing apparatus according to claim 1, wherein the side wall of the canister is provided with a level sensor.
5. The negative pressure vacuum station for a 3D printing apparatus according to claim 1, wherein a drain outlet is provided at a bottom of the canister, and a drain valve is further provided at the drain outlet.
6. The negative pressure vacuum station for a 3D printing apparatus according to claim 1, wherein a filter and a safety valve are further connected between the gas tank and the vacuum pump in sequence.
7. The negative pressure vacuum station for the 3D printing equipment according to claim 6, wherein a plurality of vacuum generating pipes are arranged in parallel inside the vacuum pump, gas inlet ends of the vacuum generating pipes are compressed gas inlets, and the compressed gas inlets are correspondingly provided with air inlet valves which are connected with the safety valves through pipelines; the side wall of the vacuum generating pipe is provided with an adsorption cavity inlet, a vacuum cavity is formed after the space where the adsorption cavity inlet is located is sealed, and the vacuum cavity is communicated with the air outlet cavity.
CN202011362931.8A 2020-11-28 2020-11-28 Negative pressure vacuum station for 3D printing equipment Pending CN112591469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011362931.8A CN112591469A (en) 2020-11-28 2020-11-28 Negative pressure vacuum station for 3D printing equipment

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Application Number Priority Date Filing Date Title
CN202011362931.8A CN112591469A (en) 2020-11-28 2020-11-28 Negative pressure vacuum station for 3D printing equipment

Publications (1)

Publication Number Publication Date
CN112591469A true CN112591469A (en) 2021-04-02

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE892236A (en) * 1981-02-24 1982-06-16 Gofa Gocher Fahrzeugbau G M B CONTAINER-SILO AND METHOD FOR FILLING THE CONTAINER
CN201380979Y (en) * 2009-04-10 2010-01-13 彭智松 Intelligent full-automatic vacuum tea packing machine
CN202673653U (en) * 2012-04-28 2013-01-16 常州科兴铁路装备有限公司 Air compressor vacuum pump overall performance experimental table
CN108905403A (en) * 2018-08-23 2018-11-30 苏州沧海真空机械有限公司 A kind of negative-pressure vacuum system for filtering solid particles and liquid
CN208406521U (en) * 2018-06-27 2019-01-22 高逊懿 A kind of exhaust apparatus of vacuum system
CN208716367U (en) * 2018-09-10 2019-04-09 深圳市鼎达信装备有限公司 Built-in vacuum generator and vacuum absorption device
CN210763178U (en) * 2019-10-31 2020-06-16 巨野天运新能源科技有限公司 Vacuum feeding machine for producing lithium battery precursor material
CN211525030U (en) * 2020-01-07 2020-09-18 厦门市益佳自动化科技有限公司 Portable integrated control vacuum generator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE892236A (en) * 1981-02-24 1982-06-16 Gofa Gocher Fahrzeugbau G M B CONTAINER-SILO AND METHOD FOR FILLING THE CONTAINER
CN201380979Y (en) * 2009-04-10 2010-01-13 彭智松 Intelligent full-automatic vacuum tea packing machine
CN202673653U (en) * 2012-04-28 2013-01-16 常州科兴铁路装备有限公司 Air compressor vacuum pump overall performance experimental table
CN208406521U (en) * 2018-06-27 2019-01-22 高逊懿 A kind of exhaust apparatus of vacuum system
CN108905403A (en) * 2018-08-23 2018-11-30 苏州沧海真空机械有限公司 A kind of negative-pressure vacuum system for filtering solid particles and liquid
CN208716367U (en) * 2018-09-10 2019-04-09 深圳市鼎达信装备有限公司 Built-in vacuum generator and vacuum absorption device
CN210763178U (en) * 2019-10-31 2020-06-16 巨野天运新能源科技有限公司 Vacuum feeding machine for producing lithium battery precursor material
CN211525030U (en) * 2020-01-07 2020-09-18 厦门市益佳自动化科技有限公司 Portable integrated control vacuum generator

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Application publication date: 20210402