US-20260124649-A1 - Dust Collecting Device

US20260124649A1US 20260124649 A1US20260124649 A1US 20260124649A1US-20260124649-A1

Abstract

A dust collecting device includes a frame having a plurality of shielding sides surrounding a working space and an open side. A plurality of impact-resistant plates made of heat-resistant and anti-stick material is detachably disposed on at least one of the plurality of shielding sides facing the open side. A receiving plate is disposed on a bottom portion of the frame and includes at least one slope and a pipe intercommunicating with a storage box. The at least one slope is inclined toward the pipe and includes a bottom end contiguous to an upper opening of the pipe. An angle between a bottom edge of the at least one slope and an edge of the upper opening of the pipe is greater than 90 degrees. A vibration module drives the receiving plate to vibrate to move dusts on the at least one slope into the storage box through the pipe.

Inventors

Chi-An Chen
Yue-Jun Wang
Shu-Feng Lee
Chin-Jou Chang
Li-Wen Weng
Hsin-Fei WANG
Chun-Chieh Tseng

Assignees

METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE

Dates

Publication Date: 20260507
Application Date: 20241104

Claims (14)

1 . A dust collecting device comprising: a frame including a plurality of shielding sides and an open side, wherein the plurality of shielding sides surrounds a working space, and wherein the open side is a lateral opening of the working space; a plurality of impact-resistant plates detachably disposed on at least one of the plurality of shielding sides facing the open side, wherein the plurality of impact-resistant plates is made of heat-resistant and anti-stick material; a receiving plate disposed on a bottom portion of the frame and including at least one slope and a pipe, wherein the at least one slope is inclined toward the pipe and includes a bottom end contiguous to an upper opening of the pipe, and wherein an angle between a bottom edge of the at least one slope and an edge of the upper opening of the pipe is greater than 90 degrees; a storage box intercommunicating with the pipe; and a vibration module configured for driving the receiving plate to vibrate, such that dusts move from the at least one slope and pass through the pipe into the storage box.
2 . The dust collecting device as claimed in claim 1 , wherein the frame further includes a slant located on a top portion of the frame, wherein the slant includes an inner face facing the working space and the open side, and wherein the slant includes a through-hole intercommunicating with the working space.
3 . The dust collecting device as claimed in claim 1 , wherein the plurality of impact-resistant plates is disposed on the plurality of shielding sides not facing the open side.
4 . The dust collecting device as claimed in claim 1 , wherein the plurality of impact-resistant plates is made of graphite, silicon carbide, silicon oxide, zirconium oxide, or aluminum oxide.
5 . The dust collecting device as claimed in claim 1 , wherein at least two magnet strips are adhered to a rear side of each of the plurality of impact-resistant plates, and wherein at least two magnetic attraction elements are disposed in a corresponding location of each of the plurality of shielding sides.
6 . The dust collecting device as claimed in claim 1 , wherein each of the plurality of shielding sides includes at least two holes in a location to which a respective one of the plurality of impact-resistant plates is mounted, and wherein each of the plurality of impact-resistant plates includes at least two alignment members associated with the at least two holes.
7 . The dust collecting device as claimed in claim 1 , wherein the at least one slope of the receiving plate includes a plurality of slopes, wherein the plurality of slopes is consecutively connected to each other to form a plate surface of the receiving plate, and wherein bottom ends of the plurality of slopes converge and are contiguous to a peripheral edge of the upper opening of the pipe.
8 . The dust collecting device as claimed in claim 7 , wherein the vibration module includes a plurality of vibrating elements respectively located below lower surfaces of the plurality of slopes, and wherein two adjacent vibrating elements are located on two different slopes.
9 . The dust collecting device as claimed in claim 1 , wherein the vibration module vibrates at a frequency of 300-2000 Hz.
10 . The dust collecting device as claimed in claim 1 , further comprising a hole cover detachably mounted to the receiving plate, wherein the hole cover covers the upper opening of the pipe, and wherein a gap is formed between an edge of the hole cover and the plate surface of the receiving plate.
11 . The dust collecting device as claimed in claim 10 , wherein the hole cover includes a cap and a supporting member, wherein the cap is conic and has a tip facing upward, wherein an end of the supporting member is fixed to a lower surface of the cap, wherein another end of the supporting member abuts against an inner periphery of the pipe, and wherein the supporting member supports the cap in a position above the upper opening.
12 . The dust collecting device as claimed in claim 10 , wherein an edge of the hole cover extends downward to form at least two protrusions in contact with the plate surface of the receiving plate, and wherein the at least two protrusions separate the edge of the hole cover and the plate surface of the receiving plate to form the gap.
13 . The dust collecting device as claimed in claim 1 , further comprising a pumping unit intercommunicating with a side opening of the pipe, wherein the pumping unit generates air currents in the pipe, and wherein the air currents are discharged in a lateral direction.
14 . The dust collecting device as claimed in claim 13 , wherein a velocity of the air currents generated by the pumping unit is 12-20 meters/second.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for recovering processing materials and, more particularly, to a dust collecting device for avoiding splash and sticking of dust during processing to thereby increase the recovery rate of materials. 2. Description of the Related Art A conventional thermal spraying technique is a method of processing a special coating on a surface of a workpiece, wherein a coating material heated to a molten or semi-molten state is sprayed onto a pre-treated surface of a workpiece to form a coating on the surface of the workpiece. For example, to increase the stability and wear-resistance of a bone implant or a dental implant, plasma can be used to melt a material having a high melting point, such as stainless steel, titanium alloy, or cobalt alloy. Then, compressed air is used to spray the molten material onto a surface of an implant to form a coating. Coating materials of different properties may provide different modification and reinforcing effects on the surface properties. The above conventional thermal spraying technique enables rapid processing and wide applications. Typical plasma spraying can treat materials with high melting points and high cleanliness. A metal material with a high purity has a higher cost. However, during the high-pressure spraying process of plasma, the coating materials in the form of powders may reach a high temperature up to 1300-1700° C. Furthermore, at the high speed of 300 meters/second, only 30% of the coating materials can be stably adhered to the surface of the workpiece while the remaining 70% of the coating materials will splash into the environment, which results in metal dust hazard. Besides, the high-temperature coating materials with irregular shapes may stick to the ambient equipment or fall onto the ambient ground, such that most of the coating materials are difficult to recycle and reuse. Particularly, the materials for medical implants must be free of pollution and have high purity. As a result, the coating materials which scatter and are mixed with impurities cannot be reused. Thus, it is necessary to improve the conventional thermal spraying technique. SUMMARY OF THE INVENTION To solve the above problem, it is an objective of the present invention to provide a dust collecting device which may improve the material recovery efficiency. It is another objective of the present invention to provide a dust collecting device which may avoid splash of dust. It is yet another objective of the present invention to provide a dust collecting device which permits sorting of the powder materials by the sizes of particles. It is a further objective of the present invention to provide a dust collecting device which may increase the purity of the recycled materials. As used herein, the term “a”, “an” or “one” for describing the number of the elements and members of the present invention is used for convenience, provides the general meaning of the scope of the present invention, and should be interpreted to include one or at least one. Furthermore, unless explicitly indicated otherwise, the concept of a single component also includes the case of plural components. A dust collecting device according to the present invention includes a frame, a plurality of impact-resistant plates, a receiving plate, a storage box, and a vibration module. The frame includes a plurality of shielding sides and an open side. The plurality of shielding sides surrounds a working space. The open side is a lateral opening of the working space. The plurality of impact-resistant plates is detachably disposed on at least one of the plurality of shielding sides facing the open side. The plurality of impact-resistant plates is made of heat-resistant and anti-stick material. The receiving plate is disposed on a bottom portion of the frame and includes at least one slope and a pipe. The at least one slope is inclined toward the pipe and includes a bottom end contiguous to an upper opening of the pipe. An angle between a bottom edge of the at least one slope and an edge of the upper opening of the pipe is greater than 90 degrees. The storage box intercommunicates with the pipe. The vibration module is configured for driving the receiving plate to vibrate, such that dusts move from the at least one slope and pass through the pipe into the storage box. Therefore, in the dust collecting device according to the present invention, thermal spraying process is carried out in the working space defined by the plurality of impact-resistant plates and the frame, which may not only concentrate and collect the spraying material which splash in all directions but also avoid sticking and environmental pollution by the spraying material while enabling recycling and reuse. Furthermore, the plurality of impact-resistant plates may be replaced respectively according to the damage status and the type of the spraying material, which increases the rec