Search

CN-224207667-U - Circulating filter device of 3D printing equipment

CN224207667UCN 224207667 UCN224207667 UCN 224207667UCN-224207667-U

Abstract

The utility model discloses a circulating filter device of 3D printing equipment, relates to the technical field of 3D printing, and aims to solve the problem of poor circulating filter efficiency in the existing 3D printing process. The circulating filter device of the 3D printing equipment comprises a support, a filter structure and a power source, wherein the filter structure is arranged on the support and comprises a primary filter cabinet and a secondary filter cabinet which are communicated, the filter structure is used for smoke dust in gas, the power source is connected with the filter structure through a conveying pipeline, an air outlet of the power source is connected with the primary filter cabinet, and an air inlet of the power source is connected with the secondary filter cabinet to form circulating filtration. The circulating filter device of the 3D printing equipment is used for improving the gas circulating filter efficiency.

Inventors

  • WANG BOWEN
  • SUN HONGTAO

Assignees

  • 苏州容智三维科技有限公司

Dates

Publication Date
20260508
Application Date
20250409

Claims (7)

  1. 1. A 3D printing apparatus circulation filter device, comprising: A bracket; The filter structure is arranged on the bracket and comprises a primary filter cabinet and a secondary filter cabinet which are communicated, and the filter structure is used for smoke dust in gas; The power source is connected with the filtering structure through a conveying pipeline, an air outlet of the power source is connected with the primary filtering cabinet, and an air inlet of the power source is connected with the secondary filtering cabinet to form circulating filtration.
  2. 2. The 3D printing apparatus circulating filter arrangement of claim 1, wherein the primary filter cabinet includes a plurality of primary filter cartridges, the plurality of primary filter cartridges for filtering larger particulate soot in the gas.
  3. 3. The 3D printing apparatus circulating filter device of claim 2, wherein the number of the primary filter elements is eight, and eight primary filter elements are arranged in an array in the bracket.
  4. 4. The 3D printing apparatus circulating filter arrangement of claim 2, wherein the primary filter cabinet further comprises a blowback air bag and a differential pressure sensor, the differential pressure sensor being disposed at both ends of the primary filter element for monitoring a pressure difference of the primary filter element, the blowback air bag being disposed toward a center of the primary filter element for blowing off smoke accumulated on the primary filter element.
  5. 5. The 3D printing apparatus circulating filter apparatus of claim 4, further comprising a flash tank disposed at a bottom of the primary filter cabinet, the flash tank being for collecting soot blown off from the primary filter cabinet.
  6. 6. The 3D printing apparatus circulating filter arrangement of claim 1, wherein the secondary filter cabinet comprises a T-tee and two secondary filter elements, the T-tee being adapted to connect outlets of the two secondary filter elements and to the air inlet of the power source.
  7. 7. The circulating filter apparatus of 3D printing equipment according to claim 1, wherein an anemometer for detecting a flow rate of the gas in the transport pipe and a control valve for controlling a circulation of the gas in the transport pipe are further connected to the transport pipe.

Description

Circulating filter device of 3D printing equipment Technical Field The utility model relates to the technical field of 3D printing, in particular to a circulating filter device of 3D printing equipment. Background In the metal 3D printing process, a large amount of smoke dust can be generated, and if the smoke dust is not treated in time, the printing quality can be affected, and the equipment can be damaged. For small-format or medium-format metal 3D printing devices, the circulating filtration system typically employs 4 cylindrical filter cartridges without blowback pockets. With the increase of printing time, a large amount of smoke dust can be accumulated on the filter element, so that the pressure difference of the filter element is higher and higher, the final equipment cannot continuously print, and a new filter element needs to be frequently replaced, so that the cost is increased, and the production efficiency is influenced. Disclosure of Invention The utility model aims to provide a circulating filter device of 3D printing equipment, which is used for improving circulating filter efficiency. In order to achieve the above object, the present utility model provides the following technical solutions: A 3D printing device loop filter apparatus, comprising: A bracket; The filter structure is arranged on the bracket and comprises a primary filter cabinet and a secondary filter cabinet which are communicated, and the filter structure is used for smoke dust in gas; The power source is connected with the filtering structure through a conveying pipeline, an air outlet of the power source is connected with the primary filtering cabinet, and an air inlet of the power source is connected with the secondary filtering cabinet to form circulating filtration. Optionally, the first-stage filter cabinet comprises a plurality of first-stage filter cores, and the plurality of first-stage filter cores are used for filtering the smoke dust with larger particles in the gas. Optionally, the number of the first-stage filter elements is eight, and the eight first-stage filter elements are arranged in the support in an array manner. Optionally, the first-stage filter cabinet further comprises a blowback air bag and a differential pressure sensor, wherein the differential pressure sensor is arranged at two ends of the first-stage filter core and used for monitoring the pressure difference of the first-stage filter core, and the blowback air bag is arranged towards the center of the first-stage filter core and used for blowing off the accumulated smoke dust on the first-stage filter core. Optionally, the 3D printing device circulating filter device further comprises a flash bucket arranged at the bottom of the primary filter cabinet, and the flash bucket is used for collecting dust blown off from the primary filter cabinet. Optionally, the second grade filter cabinet includes T type three-way pipe and two second grade filter cores, the T type three-way pipe is used for with two the exit linkage of second grade filter core, and lead to the air intake of power supply. Optionally, the conveying pipeline is further connected with an anemometer and a control valve, the anemometer is used for detecting the flow rate of the gas in the conveying pipeline, and the control valve is used for controlling the circulation of the gas in the conveying pipeline. Compared with the prior art, in the circulating filter device of the 3D printing equipment, the number of the first-stage filter elements and the size of the filter elements are increased, so that the filter area is remarkably increased, the filtering capacity of smoke dust is enhanced, a large amount of smoke dust generated by the large-scale metal 3D printing equipment can be better adapted, the back blowing air bag arranged at the top of the first-stage filter cabinet can be started in time when the pressure difference of the filter elements is too high, the filter elements can be effectively cleaned, the pressure difference is reduced, the service life of the filter elements is greatly prolonged, the frequency of frequent replacement of the filter elements is reduced, the production cost is reduced, the production efficiency is improved, the filtering precision is further improved, the air cleanliness of the circulating inlet air inlet of the fan is ensured, the equipment can be continuously and stably operated, and the printing quality is improved. Drawings The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. Fig. 1 is a schematic structural diagram of a circulating filter device of a 3D printing apparatus according to an embodiment of the present utility model. Fig. 2 is a schematic structural dia