Dust removal structure for coating machine

Abstract

The utility model relates to the technical field of coating machine dust removal, disclose a dust removal structure for coating machine, including pipe body, upper dust collection channel, lower dust collection channel and negative pressure source. Pipe body is used for corresponding dust collection of coating operation area, upper dust collection channel and lower dust collection channel are established in the top and bottom of pipe body respectively, and the dust collection mouth of upper dust collection channel and lower dust collection channel all face the coating operation surface, at least two negative pressure sources are communicated with upper dust collection channel and lower dust collection channel respectively, and are used for providing negative pressure suction force for upper dust collection channel and lower dust collection channel to collect dust from the upper and lower sides of coating operation surface simultaneously. Through the independent dust collection channel of pipe body upper and lower division and matching corresponding negative pressure source, make that upper and lower dust collection mouth can adjust suction force pertinence, realize the synchronous directional collection of the dust of the upper and lower sides of coating operation surface, thereby avoid the dust escape caused by one -sided dust collection, improve dust removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for coating machines, specifically a dust removal structure for coating machines. Background Technology

[0002] The dust removal structure for coating machines is used to remove dust generated during the coating process, preventing dust adhesion from affecting coating accuracy and product quality.

[0003] Existing structures mostly use a single suction channel with a single negative pressure source, which can only suction from one side and the suction power cannot be adjusted independently. This results in a relatively high dust escape rate and uneven suction between the upper and lower areas, which can easily affect the suction effect.

[0004] Therefore, there is an urgent need for a dust removal structure for coating machines to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a dust removal structure for a coating machine to solve the problem of material dust collection in the coating machine.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A dust removal structure for a coating machine includes: The pipe body is used for dust collection in the corresponding coating operation area; The upper and lower dust suction channels are respectively located at the top and bottom of the tube body, and the suction ports of the upper and lower dust suction channels face the coating surface. At least two negative pressure sources are respectively connected to the upper and lower dust suction channels to provide negative pressure suction for the upper and lower dust suction channels, so as to collect dust from the upper and lower sides of the coating surface simultaneously.

[0007] As a preferred embodiment of a dust removal structure for a coating machine, the upper dust suction channel includes a plurality of first suction ports and a first main branch. The plurality of first suction ports are arranged at intervals along the direction of the coating working surface in the tube body, and the dust suction port of each first suction port faces the coating working surface. The first main branch is located inside the tube body, and the end of each first suction port is connected to the first main branch. The end of the first main branch away from the first suction port is connected to the corresponding negative pressure source. The lower suction channel includes several second suction ports and a second main branch. The several second suction ports are arranged at intervals along the direction of the coating surface in the tube body, and the second suction ports face away from the first suction ports. The second main branch is located inside the tube body, and the end of each second suction port is connected to the second main branch. The second main branch is offset from the first main branch, and the end of the second main branch away from the second suction port is connected to the corresponding negative pressure source.

[0008] As a preferred embodiment of a dust removal structure for a coating machine, it further includes a protective cover, one end of which is an open end and the other end is a closed end. The tube body is disposed inside the protective cover, and an annular connecting channel is formed between the outer wall of the tube body and the inner wall of the protective cover. The upper dust suction channel faces the closed end of the protective cover, and the lower dust suction channel faces the open end of the protective cover.

[0009] As a preferred embodiment of a dust removal structure for a coating machine, the protective cover is trumpet-shaped, with the end of the protective cover facing the coating work surface being an open flared end and the closed end facing away from the open flared end being a closed shrinkage end.

[0010] As a preferred embodiment of a dust removal structure for a coating machine, the protective cover has a first rotation source on its side. The power output end of the first rotation source is connected to the shaft end of the protective cover. The first rotation source is used to drive the protective cover to rotate the tube body around the axis to adjust the orientation angle of the flared end of the protective cover.

[0011] As a preferred embodiment of a dust removal structure for a coating machine, it also includes an ion air knife, which is located on the side of the tube body close to the coating surface. The air outlet of the ion air knife faces the coating surface and is used to blow airflow containing positive and negative ions onto the coating surface.

[0012] As a preferred embodiment of a dust removal structure for a coating machine, the side of the ion air knife is provided with a second rotation source, which is used to drive the ion air knife to rotate around its own axis in order to adjust the blowing angle of the air outlet of the ion air knife.

[0013] As a preferred embodiment of a dust removal structure for a coating machine, it further includes at least two filter chambers disposed between any of the dust suction channels and any of the negative pressure sources, wherein the filter chambers are used to filter the dust collected by the upper dust suction channel and the lower dust suction channel.

[0014] As a preferred embodiment of a dust removal structure for a coating machine, the filter chamber includes a chamber body, a built-in filter screen and a dustproof screen. The two ends of the chamber body are respectively provided with a dust inlet and a dust outlet. The dust inlet is connected to the upper dust suction channel or the lower dust suction channel through a pipe, and the dust outlet is connected to the negative pressure source through a pipe.

[0015] As a preferred embodiment of a dust removal structure for a coating machine, the dustproof net includes a frame, a first filter sheet, and a second filter sheet. The frame is installed inside the filter chamber, and both the first and second filter sheets are fixed to the frame and arranged in a stacked manner. The pore gap of the first filter sheet is larger than that of the second filter sheet, and the first filter sheet faces the dust inlet of the chamber, while the second filter sheet faces the dust outlet of the chamber. The two negative pressure sources are connected through the corresponding dust outlets of the filter chambers.

[0016] The beneficial effects of this utility model are as follows: by setting independent dust collection channels at the top and bottom of the tube and matching them with corresponding negative pressure sources, the suction power of the upper and lower dust collection ports can be adjusted in a targeted manner, so as to realize the synchronous and directional collection of dust on both sides of the coating surface, thereby avoiding dust escape caused by unilateral dust collection and improving dust removal efficiency; at the same time, the independent channel design reduces airflow interference, ensuring that there are no dead corners in the dust collection in the upper and lower areas, and improving the dust removal effect. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a dust removal structure for a coating machine provided by this utility model; Figure 2 A schematic diagram of the overall structure of a dust removal structure for a coating machine equipped with an ion air knife, provided by this utility model; Figure 3 A schematic diagram of the overall structure of the tube body in a dust removal structure for a coating machine provided by this utility model; Figure 4 Exploded view of the tube body and protective cover in a dust removal structure for a coating machine provided by this utility model; Figure 5 A schematic diagram of the overall structure of the filter chamber in a dust removal structure for a coating machine provided by this utility model; Figure 6 An exploded view of the filter chamber in a dust removal structure for a coating machine provided by this utility model.

[0018] The following are the reference numerals in the attached diagram: 1. Pipe body; 2. Upper suction channel; 3. Lower suction channel; 4. Negative pressure source; 5. First suction port end; 6. First main branch; 7. Second suction port end; 8. Second main branch; 9. Protective cover; 10. Annular connecting channel; 11. Expanded open end; 12. Shrinkable closed end; 13. First rotating source; 15. Ion air knife; 16. Second rotating source; 17. Filter chamber; 18. Chamber body; 19. Filter screen; 20. Dustproof screen; 21. Dust inlet; 22. Dust outlet; 23. Pipe; 24. Frame; 25. First filter element; 26. Second filter element. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0024] In one embodiment of this utility model, such as Figure 1-6As shown, a dust removal structure for a coating machine is provided, including: a pipe body 1, an upper dust suction channel 2, a lower dust suction channel 3, and negative pressure sources 4. The pipe body 1 is used for dust collection corresponding to the coating operation area; the upper dust suction channel 2 and the lower dust suction channel 3 are respectively opened at the top and bottom of the pipe body 1, and the suction ports of the upper dust suction channel 2 and the lower dust suction channel 3 both face the coating operation surface; at least two negative pressure sources 4 are respectively connected to the upper dust suction channel 2 and the lower dust suction channel 3, and are used to provide negative pressure suction for the upper dust suction channel 2 and the lower dust suction channel 3 to collect dust simultaneously from the upper and lower sides of the coating operation surface.

[0025] The dust removal structure for coating machines provided by this utility model has independent dust collection channels at the top and bottom of the tube body 1 and is matched with corresponding negative pressure sources 4. This allows the suction power of the upper and lower dust collection ports to be adjusted in a targeted manner, so as to realize the synchronous and directional collection of dust on both sides of the coating surface, thereby avoiding dust escape caused by unilateral dust collection and improving dust removal efficiency. At the same time, the independent channel design reduces airflow interference and ensures that there are no dead corners in the dust collection in the upper and lower areas, solving the problems of uneven dust collection and secondary pollution caused by traditional single-channel dust collection.

[0026] Preferably, the upper suction channel 2 includes a plurality of first suction port ends 5 and a first main branch 6. The plurality of first suction port ends 5 are arranged at intervals along the direction of the coating operation surface in the pipe body 1. The suction port of each first suction port end 5 faces the coating operation surface. The first main branch 6 is located inside the pipe body 1, and the end of each first suction port end 5 is connected to the first main branch 6. The end of the first main branch 6 away from the first suction port end 5 is connected to the corresponding negative pressure source 4. The lower suction channel 3 includes several second suction ports 7 and a second main branch 8. Several second suction ports 7 are arranged at intervals along the direction of the coating operation surface in the pipe body 1, and the second suction ports 7 and the first suction ports 5 face opposite directions. The second main branch 8 is located inside the pipe body 1, and the end of each second suction port 7 is connected to the second main branch 8. The second main branch 8 is offset from the first main branch 6. The end of the second main branch 8 away from the second suction port 7 is connected to the corresponding negative pressure source 4.

[0027] In the dust generated during the coating operation, the floating dust is sucked in by several first suction ports 5 at the top of the pipe body 1, and after being combined by the first main branch 6, it is extracted by the corresponding negative pressure source 4; the dust that sinks and adheres to the working surface is captured by several second suction ports 7 at the bottom of the pipe body 1, and after being combined by the independent second main branch 8, it is extracted by another negative pressure source 4.

[0028] The multiple suction ports are arranged at intervals along the working surface, expanding the upper and lower dust collection coverage and avoiding local dust accumulation. The staggered arrangement of the first and second main branches reduces airflow interference and ensures stable suction at each suction port. The independent confluence structure of the upper and lower channels allows dust from different areas to be discharged in a directional and efficient manner, solving the problems of uneven suction and dust backflow that are common in traditional single-channel multi-port systems, and further improving the comprehensiveness and stability of dust removal.

[0029] The dust removal structure used in the coating machine also includes a protective cover 9, one end of which is an open end and the other end is a closed end. The tube body 1 is set inside the protective cover 9, and the outer wall of the tube body 1 and the inner wall of the protective cover 9 form an annular connecting channel 10. The upper dust suction channel 2 faces the closed end of the protective cover 9, and the lower dust suction channel 3 faces the open end of the protective cover 9.

[0030] Furthermore, the protective cover 9 is trumpet-shaped, with the end of the protective cover 9 facing the coating surface being the flared open end 11, and the closed end facing away from the flared open end 11 being the shrink closed end 12.

[0031] Dust scattered below and around the coating surface can be efficiently captured by the lower suction channel 3 facing the open end, and can also be guided by the suction of the upper suction channel 2. Under the guidance of the flared open end 11, it converges to the closed end of the protective cover 9 through the annular connecting channel 10, and is finally sucked in and discharged by the independent upper suction channel 2.

[0032] The ring-shaped connecting channel 10 allows dust to flow in an orderly manner under suction, avoiding secondary pollution caused by disorderly diffusion. Furthermore, the semi-enclosed structure of the protective cover 9 creates a semi-enclosed dust removal space, effectively isolating external interfering airflow, reducing dust escape into the external environment, ensuring stable operation of the dust removal function, and further enhancing the reliability and durability of the overall dust removal effect.

[0033] Preferably, the protective cover 9 is provided with a first rotation source 13 on its side. The power output end of the first rotation source 13 is connected to the shaft end of the protective cover 9. The first rotation source 13 is used to drive the protective cover 9 to rotate the tube body 1 around the axis to adjust the orientation angle of the flared end of the protective cover 9 to adapt to the dust collection needs of different coating operation areas. The first rotation source 13 can be a slip ring, and its rotation angle can be precisely adjusted by the control module.

[0034] Preferably, the dust removal structure used in the coating machine also includes an ion air knife 15. The ion air knife 15 is located on the side of the tube body 1 close to the coating working surface. The air outlet of the ion air knife 15 faces the coating working surface and is used to blow airflow with positive and negative ions onto the coating working surface to neutralize the static electricity on the surface of the coating material and prevent static electricity from adsorbing dust. At the same time, it helps to blow the dust into the suction ports of the upper suction channel 2 and the lower suction channel 3.

[0035] Furthermore, a second rotation source 16 is provided on the side of the ion air knife 15. The second rotation source 16 is used to drive the ion air knife 15 to rotate around its own axis, so as to adjust the blowing angle of the air outlet of the ion air knife 15 and ensure that the airflow can cover different areas of the coating surface. Preferably, the control signal of the second rotation source 16 is linked with that of the first rotation source 13, and can synchronously adapt to the rotation angle of the protective cover 9.

[0036] Preferably, the dust removal structure for the coating machine also includes at least two filter chambers 17, which are installed between any dust suction channel and any negative pressure source 4 via pipes 23. The filter chambers 17 are used to filter the dust collected by the upper dust suction channel 2 and the lower dust suction channel 3 to prevent dust from entering the interior of the negative pressure source 4 and causing equipment wear or blockage.

[0037] Furthermore, the filter chamber 17 includes a chamber body 18, a built-in filter screen 19, and a dustproof net 20. The chamber body 18 has a dust inlet 21 and a dust outlet 22 at its two ends, respectively. The dust inlet 21 is connected to the upper suction channel 2 or the lower suction channel 3 via a pipe 23, and the dust outlet 22 is connected to the negative pressure source 4 via a pipe 23. The filter screen 19 is used for preliminary filtration of large dust particles; the dustproof net 20 is used to prevent the filtered dust from flowing back into the pipe body 1 when the negative pressure source 4 is stopped.

[0038] Furthermore, the dustproof net 20 includes a frame 24, a first filter 25, and a second filter 26. The frame 24 is installed inside the chamber 18 of the filter chamber 17, and both the first filter 25 and the second filter 26 are fixed to the frame 24 in a stacked arrangement. The pore gap of the first filter 25 is larger than that of the second filter 26. The first filter 25 faces the dust inlet 21 of the chamber 18, and the second filter 26 faces the dust outlet 22 of the chamber 18. The two negative pressure sources 4 are connected through the corresponding dust outlets 22 of the filter chamber 17. The first filter 25, facing the dust inlet 21 (inner side) of the chamber 18, is used to intercept medium-sized dust particles, while the second filter 26, facing the dust outlet 22 (outer side) of the chamber 18, is used to further intercept fine dust particles, ensuring that the air entering the negative pressure source 4 reaches a high level of cleanliness, avoiding blockage of the negative pressure source 4, and ensuring that the dust removal work proceeds normally.

[0039] In this embodiment, a support frame can be installed and fixed to the coating machine with screws to ensure that it remains stable during the operation of the coating machine and will not shake or shift due to vibration or external force, thereby ensuring that the dust removal structure can continuously and effectively perform its dust removal function.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A dust removal structure for a coating machine, characterized in that, include: The pipe body is used for dust collection in the corresponding coating operation area; The upper and lower dust suction channels are respectively located at the top and bottom of the tube body, and the suction ports of the upper and lower dust suction channels face the coating surface. At least two negative pressure sources are respectively connected to the upper and lower dust suction channels to provide negative pressure suction for the upper and lower dust suction channels, so as to collect dust from the upper and lower sides of the coating surface simultaneously.

2. The dust removal structure for a coating machine according to claim 1, characterized in that, The upper suction channel includes a plurality of first suction ports and a first main branch. The plurality of first suction ports are arranged at intervals along the direction of the coating working surface in the tube body. The suction port of each first suction port faces the coating working surface. The first main branch is located inside the tube body, and the end of each first suction port is connected to the first main branch. The end of the first main branch away from the first suction port is connected to the corresponding negative pressure source. The lower suction channel includes several second suction ports and a second main branch. The several second suction ports are arranged at intervals along the direction of the coating surface in the tube body, and the second suction ports face away from the first suction ports. The second main branch is located inside the tube body, and the end of each second suction port is connected to the second main branch. The second main branch is offset from the first main branch, and the end of the second main branch away from the second suction port is connected to the corresponding negative pressure source.

3. A dust removal structure for a coating machine according to claim 1 or 2, characterized in that, It also includes a protective cover, one end of which is an open end and the other end is a closed end. The tube body is disposed inside the protective cover, and an annular connecting channel is formed between the outer wall of the tube body and the inner wall of the protective cover. The upper suction channel faces the closed end of the protective cover, and the lower suction channel faces the open end of the protective cover.

4. The dust removal structure for a coating machine according to claim 3, characterized in that, The protective cover is horn-shaped, with the end of the protective cover facing the coating surface being the flared open end and the closed end facing away from the flared open end being the shrinkable closed end.

5. A dust removal structure for a coating machine according to claim 4, characterized in that, The protective cover is provided with a first rotation source on its side. The power output end of the first rotation source is connected to the shaft end of the protective cover. The first rotation source is used to drive the protective cover to rotate the tube body around the axis to adjust the orientation angle of the flared end of the protective cover.

6. A dust removal structure for a coating machine according to claim 1, 2, 4, or 5, characterized in that, It also includes an ion air knife, which is located on the side of the tube body near the coating surface. The air outlet of the ion air knife faces the coating surface and is used to blow airflow containing positive and negative ions onto the coating surface.

7. A dust removal structure for a coating machine according to claim 6, characterized in that, The side of the ion air knife is provided with a second rotation source, which is used to drive the ion air knife to rotate around its own axis in order to adjust the blowing angle of the air outlet of the ion air knife.

8. A dust removal structure for a coating machine according to claim 1, 2, 4, 5, or 7, characterized in that, It also includes at least two filter chambers disposed between any of the suction channels and any of the negative pressure sources, the filter chambers being used to filter the dust collected by the upper suction channel and the lower suction channel.

9. A dust removal structure for a coating machine according to claim 8, characterized in that, The filter chamber includes a chamber body, a built-in filter screen and a dustproof screen. The two ends of the chamber body are respectively provided with a dust inlet and a dust outlet. The dust inlet is connected to the upper dust suction channel or the lower dust suction channel through a pipe, and the dust outlet is connected to the negative pressure source through a pipe.

10. A dust removal structure for a coating machine according to claim 9, characterized in that, The dustproof net includes a frame, a first filter element, and a second filter element. The frame is installed inside the filter chamber, and both the first and second filter elements are fixed to the frame and arranged in a stacked manner. The pore gap of the first filter element is larger than that of the second filter element. The first filter element faces the dust inlet of the chamber, and the second filter element faces the dust outlet of the chamber. The two negative pressure sources are connected through the dust outlets of the corresponding filter chambers.

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