Pulsed direct current dust and static electricity removing device

Abstract

A pulsed DC dust removal and static electricity removal device includes an ion generating component. The ion generating component includes a base with a central opening. The device also includes a dust removal component mounted on the back of the base. This dust removal component includes: a fan hood placed within the opening; a fan duct placed within the fan hood; and an air inlet nozzle mounted on the fan hood, one end of which is connected to an air source. The end of the air inlet nozzle extending into the fan duct is sealed and connected to a flexible air outlet pipe. This invention provides a dust removal component mounted on top of the ion generating component, enabling simultaneous static electricity removal and dust removal. The high-speed airflow of the dust removal component blows the ions generated by the ion generating component onto the workpiece surface, thus simultaneously completing the dust removal and static electricity removal operations.

Description

Technical Field

[0001] This utility model relates to the field of dust removal and static electricity removal technology, and in particular to a pulsed DC dust removal and static electricity removal device. Background Technology

[0002] In the electronics industry, some workpieces require spraying or printing after they are manufactured. If the surface of the workpiece has dust or static electricity during the spraying or printing process, it will seriously affect the quality of the spraying or printing. This is because a layer of dust or static electricity on the workpiece surface will hinder the paint from adhering to the workpiece surface, resulting in poor paint adhesion, sagging, uneven ink dispersion, and easy cracking or peeling.

[0003] Therefore, dust removal and static electricity removal are currently carried out during subsequent processing to ensure the cleanliness of the workpiece surface. At present, the dust removal and static electricity removal process is mostly carried out in a separate manner, that is, static electricity removal fans and dust removal devices are used in sequence to remove static electricity and dust respectively. However, this requires extending the production line and requiring two sets of processing devices to complete the process, which increases the production cost and also requires an increase in the floor space occupied by the processing equipment.

[0004] Therefore, a new technical solution is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a pulsed DC dust removal and static electricity removal device to solve the above-mentioned technical problems.

[0006] A pulse-type DC dust removal and static electricity removal device includes an ion generating component, which comprises a base with a hole in the center; the device further includes a dust removal component mounted on the back of the main body, the dust removal component comprising:

[0007] The wind cover is placed within the hole, and the wind cover has an accommodating cavity inside, and the outer wall of the wind cover has several connecting ribs that extend radially and are detachably connected to the base.

[0008] A duct is provided within the accommodating space, and one end of the duct is formed with a connecting end, which is movably connected to the bottom of the accommodating space, while the other end is provided at the air outlet.

[0009] An air inlet is mounted on the shroud, with one end extending into the accommodating space and the other end connected to an air source. The end of the air inlet extending into the accommodating space is sealed to a flexible air outlet pipe, which is located inside the air duct and extends toward the air outlet end.

[0010] Furthermore, the wind shroud is provided with a constriction section and an enlargement section in sequence along the axial direction, and the diameter of the constriction section is smaller than the diameter of the enlargement section. The connecting rib is formed on the enlargement section, and the connecting end of the wind duct is movably connected inside the constriction section.

[0011] Furthermore, the diameter of the enlarged portion gradually increases from the connection point with the contracted portion to the opening and takes the shape of a trumpet.

[0012] Furthermore, the diameter of the connecting end is smaller than the diameter of the contraction part, and an annular groove is formed on the circumferential surface of the connecting end. A limiting member is provided on the inner wall of the contraction part, with one end placed inside the annular groove for axial limiting.

[0013] Furthermore, threaded holes are equally spaced along the circumferential direction on the enlarged part, and a limiting screw is threaded into the threaded hole to limit the swing amplitude of the air duct along the diametrical direction.

[0014] Furthermore, the base body is formed with a mounting cavity around the hole, and a discharge component for ionizing ions is installed inside the mounting cavity.

[0015] Furthermore, the discharge assembly includes:

[0016] The needle holder is annular and installed inside the mounting cavity. A plurality of discharge needles are evenly spaced along the circumferential direction on the needle holder. One end of each discharge needle is located inside the mounting cavity, and the other end extends outward toward the outside of the mounting cavity.

[0017] A high-voltage unit is installed inside the mounting cavity and is electrically connected to a power supply and several discharge needles, so that the discharge needles carry high voltage.

[0018] Furthermore, the base also includes a cover that covers the opening of the mounting cavity to enclose the discharge assembly within the mounting cavity.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] According to the technical solution provided by this utility model embodiment, during the static elimination process, the ion generating component ionizes and produces ions. At this time, the air inlet is connected to the air source, and the high-pressure gas from the air source is blown out through the air outlet pipe. Because the air outlet pipe is flexible, with one end connected to the air inlet and the other end extending towards the air outlet of the air duct, when the high-pressure gas is blown out through the air outlet pipe, the air outlet pipe is driven by the high-speed jet of air to twist randomly and irregularly. At the same time, because the connecting end of the air duct is movably connected within the accommodating cavity of the air hood, it allows the air outlet to... The airflow oscillates under the impact of the twisting of the exhaust pipe, causing the airflow blown out of the exhaust pipe to oscillate and be blown towards the workpiece under the restriction and drive of the air duct. At the same time, the ionized ions generated by the ionization component are carried to the surface of the workpiece for static elimination. Since the high-speed airflow is oscillating, the airflow acting on a specific position on the workpiece is intermittent and pulsed. Therefore, this pulsed blowing method can more thoroughly remove the dust attached to the surface of the workpiece, thereby improving the dust removal effect.

[0021] This utility model provides a pulsed DC dust removal and static electricity removal device. A dust removal component is installed on top of the ion generating component, which can simultaneously perform static electricity removal and dust removal. It eliminates the need to add processing positions according to different processing steps. The dust removal component is installed on top of the ion generating component. When the dust removal component blows high-pressure airflow toward the workpiece for dust removal, the high-speed airflow of the dust removal component can blow the electro-ions generated by the ion generating component toward the surface of the workpiece, thereby simultaneously completing the dust removal and static electricity removal operations. In addition, during the dust removal process, the static electricity of fine dust can be eliminated, avoiding the situation where dust particles gradually increase in size due to mutual attraction caused by static electricity, which would affect the dust removal effect, thereby improving the dust removal effect.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is an exploded structural diagram of the present invention.

[0025] Figure 3 This is a schematic diagram of the exploded structure of the ion-generating component in this utility model.

[0026] Figure 4 This is an exploded structural diagram of the dust removal component in this utility model.

[0027] Figure 5 This is a cross-sectional view of the present invention. Detailed Implementation

[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in the embodiments of this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0031] This utility model embodiment provides a pulsed DC dust removal and static electricity removal device. A dust removal component 200 is provided on top of the ion generating component 100, which can simultaneously complete the static electricity removal and dust removal operations without adding processing positions according to different processing steps. The dust removal component is installed on top of the ion generating component 100. When the dust removal component 200 blows high-pressure airflow toward the workpiece for dust removal, the high-speed airflow of the dust removal component 200 can blow the electro-ions generated by the ion generating component 100 toward the surface of the workpiece, thereby simultaneously completing the dust removal and static electricity removal operations. In addition, during the dust removal process, the static electricity of fine dust can be eliminated, avoiding the situation where dust particles gradually increase in size due to mutual attraction caused by static electricity, which would affect the dust removal effect, thereby improving the dust removal effect.

[0032] Specifically, such as Figure 1-5As shown, this utility model embodiment provides a pulsed DC dust removal and static electricity removal device, including an ion generating component 100, which includes a base 110 with a hole 111 in the middle; the pulsed DC dust removal and static electricity removal device also includes a dust removal component 200 installed on the back of the main body, which includes a fan hood 210, a fan duct 220, and an air inlet 230, wherein the fan hood 210 is placed within the hole 111, and a cavity 211 is formed inside the fan hood 210, and a plurality of edges are formed on the outer wall of the fan hood 210. A connecting rib 212 extends radially and is detachably connected to the base 110; a duct 220 is disposed within the accommodating space, and one end of the duct 220 is formed with a connecting end 221, which is movably connected to the bottom of the accommodating space, and the other end is disposed at the air outlet 222; an air inlet 230 is mounted on the hood 210, one end of which extends into the accommodating space, and the other end is connected to the air source, and the end of the air inlet 230 extending into the accommodating space is sealed to a flexible air outlet pipe 231, which is disposed within the duct 220 and extends toward the air outlet 222.

[0033] During the static elimination process, the ion generator 100 ionizes the gas. At this time, the air inlet 230 is connected to the gas source, and the high-pressure gas from the gas source is blown out through the air outlet pipe 231. Because the air outlet pipe 231 is flexible, with one end connected to the air inlet 230 and the other end extending towards the air outlet 222 of the air duct 220, when the high-pressure gas is blown out through the air outlet pipe 231, the air outlet pipe 231 is driven by the high-speed jet of air to twist randomly and irregularly. At the same time, because the connecting end 221 of the air duct 220 is movably connected within the accommodating cavity 211 of the wind hood 210, it allows the air outlet to... When the end 222 is impacted by the twisting of the air outlet pipe 231, it swings or rotates, causing the airflow blown out of the air outlet pipe 231 to swing towards the workpiece under the restriction and drive of the air duct 220. At the same time, the electro-ion generated by the electro-ion generator 100 is carried to the surface of the workpiece for static removal. Since the high-speed airflow is swinging, the airflow acting on a specific position on the workpiece is intermittent and pulsed. Therefore, through this pulsed airflow method, the dust attached to the surface of the workpiece can be removed more thoroughly, thereby improving the dust removal effect.

[0034] In this embodiment, the hood 210 is provided with a contraction portion 213 and an enlargement portion 214 in sequence along the axial direction. The diameter of the contraction portion 213 is smaller than the diameter of the enlargement portion 214. The connecting rib 212 is formed on the enlargement portion 214, and the connecting end 221 of the air duct 220 is movably connected within the contraction portion 213.

[0035] Specifically, the diameter of the enlarged section 214 gradually increases from the connection point with the contraction section 213 to the opening, forming a trumpet shape. By setting the hood 210 to a generally trumpet-shaped structure, the diameter of the outlet can be increased, allowing the air duct 220 to have a larger swing space and increasing the effective area of ​​dust removal.

[0036] In this embodiment, the diameter of the connecting end 221 is smaller than the diameter of the contraction part 213, and an annular groove 223 is formed on the circumferential surface of the connecting end 221. A limiting member is provided on the inner wall of the contraction part 213, with one end placed inside the annular groove 223 for axial limiting. By extending the limiting member into the annular groove 223, the air duct 220 is movably connected within the contraction part 213 and swings within it. In this embodiment, the portion of the limiting member (not shown in the figure) that extends into the annular groove 223 has a hemispherical surface, thereby enabling the air duct 220 to swing more smoothly.

[0037] In this embodiment, to prevent the duct 220 from swinging too widely, threaded holes 215 are evenly spaced along the circumferential direction on the enlarged portion 214, and a limiting screw is threaded into each threaded hole 215. The limiting screw is used to limit the swing amplitude of the duct 220 along the diametrical direction. By tightening the limiting screw (not shown in the figure), the length of the limiting screw extending into the enlarged portion 214 can be used to limit the swing range of the duct 220, thereby achieving an effective dust removal range.

[0038] In this embodiment, the base 110 is formed with a mounting cavity 112 around the hole 111, and a discharge component 120 for ionizing ions is installed inside the mounting cavity 112.

[0039] The discharge assembly 120 includes a needle holder 121 and a high-voltage unit. Specifically, the needle holder 121 is annular and installed within the mounting cavity 112. A plurality of discharge needles 122 are evenly spaced along the circumference of the needle holder 121, with one end of each needle 122 located within the mounting cavity 112 and the other end extending outwards. The high-voltage unit is installed within the mounting cavity 112 and is electrically connected to the power supply and the discharge needles 122, causing the discharge needles 122 to carry a high voltage. The high-voltage unit can be implemented using existing technology, generally including a control circuit, a boost circuit, and a busbar that abuts against the discharge needles 122. After the high-voltage unit is connected to the power supply, the discharge needles 122 carry a high voltage and discharge into the air, ionizing ions. Under the action of the dust removal assembly 200, a high-speed air mass is blown towards the workpiece surface.

[0040] In this embodiment, the base 110 also includes a cover 123, which covers the opening of the mounting cavity 112 to enclose the discharge assembly 120 within the mounting cavity 112.

[0041] For those skilled in the art, various other corresponding changes and modifications can be obtained based on the structure and principles disclosed in this utility model, and all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A pulse DC dedusting and destaticizing device comprising an ion generating assembly, characterized in that, The electro-ion generating component includes a base, with a hole in the center of the base; the pulsed DC dust removal and static electricity removal device further includes a dust removal component installed on the back of the main body, the dust removal component including: The wind cover is placed within the hole, and the wind cover has an accommodating cavity inside, and the outer wall of the wind cover has several connecting ribs that extend radially and are detachably connected to the base. A duct, wherein the duct is disposed within an accommodating space, and one end of the duct is formed with a connecting end, which is movably connected to the bottom of the accommodating space, and the other end is disposed at the air outlet. An air inlet is mounted on the shroud, with one end extending into the accommodating space and the other end connected to an air source. The end of the air inlet extending into the accommodating space is sealed to a flexible air outlet pipe, which is located inside the air duct and extends toward the air outlet end.

2. The pulse-type DC dust removal and static electricity removal device according to claim 1, characterized in that, The wind shroud is provided with a constriction section and an enlargement section in sequence along the axial direction, and the diameter of the constriction section is smaller than the diameter of the enlargement section. The connecting rib is formed on the enlargement section, and the connecting end of the wind duct is movably connected inside the constriction section.

3. The pulse-type DC dust removal and static electricity removal device according to claim 2, characterized in that, The diameter of the enlarged section gradually increases from the connection point with the contracted section to the opening, and is flared in shape.

4. The pulse-type DC dust removal and static electricity removal device according to claim 2, characterized in that, The diameter of the connecting end is smaller than the diameter of the contraction part, and an annular groove is formed on the circumferential surface of the connecting end. A limiting member is provided on the inner wall of the contraction part, with one end placed inside the annular groove for axial limiting.

5. The pulse-type DC dust removal and static electricity removal device according to claim 4, characterized in that, The enlarged section has threaded holes spaced at equal intervals along the circumference, and a limit screw is threaded into the threaded hole to limit the swing amplitude of the air duct along the diameter direction.

6. The pulse-type DC dust removal and static electricity removal device according to claim 1, characterized in that, The base body is formed with a mounting cavity around the hole, and a discharge component for ionizing ions is installed inside the mounting cavity.

7. The pulse-type DC dust removal and static electricity removal device according to claim 6, characterized in that, The discharge assembly includes: The needle holder is annular and installed inside the mounting cavity. A plurality of discharge needles are evenly spaced along the circumferential direction on the needle holder. One end of each discharge needle is located inside the mounting cavity, and the other end extends outward toward the outside of the mounting cavity. A high-voltage unit is installed inside the mounting cavity and is electrically connected to a power supply and several discharge needles, so that the discharge needles carry high voltage.

8. The pulse-type DC dust removal and static electricity removal device according to claim 7, characterized in that, The base also includes a cover that covers the opening of the mounting cavity to enclose the discharge assembly within the mounting cavity.

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