Dust removal head of cleaning machine

Abstract

The utility model relates to the technical field of dust removal equipment, and discloses a dust removal head of a cleaning machine, which comprises a first side plate, a first spraying cavity, a second spraying cavity and a second side plate, the first spraying cavity and the second spraying cavity are oppositely arranged, and the first side plate and the second side plate are respectively arranged on the outer sides of the first spraying cavity and the second spraying cavity; dust removal air ducts are arranged on the outer sides of the first spraying cavity and the second spraying cavity; a first inner open groove is formed in the inner side of the first spraying cavity, and a sealing piece is arranged in the first inner open groove in the circumferential direction of the first inner open groove. The first inner open groove and a second inner open groove formed in the inner side of the second spraying cavity are sealed through a sealing piece, so that an air storage cavity is formed. A first guide face is arranged at the bottom of the side, close to the second spraying cavity, of the first spraying cavity, a second guide face is arranged at the position, corresponding to the first guide face, of the second spraying cavity, and an air outlet channel is defined by the first guide face and the second guide face and communicates with the bottom of the air storage cavity. The scheme is simple in structure and capable of removing dust without contact with workpieces.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically to a dust removal head for a cleaning machine. Background Technology

[0002] During the production process, workpieces such as PCB boards inevitably become contaminated by airborne dust, droplets, and particles. Cleaning machines are then needed to clean these PCB boards. However, existing cleaning machines are generally contact-type, using brushes to agitate dust while simultaneously suctioning out the air. A rubber roller then rolls over the workpiece surface to remove some dust. This method involves contact between the brushes / rollers and the workpiece, resulting in limited dust removal efficiency and potential damage to the workpiece, secondary contamination, and reduced cleaning efficiency. Therefore, a simple, non-contact dust removal head for cleaning machines is needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a novel dust removal head for cleaning machines, thereby solving the problem of poor dust removal performance of existing dust removal heads for cleaning machines.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A dust removal head for a cleaning machine, used for non-contact dust removal from workpieces, includes a first side plate, a first spray chamber, a second spray chamber, and a second side plate. The first spray chamber and the second spray chamber are arranged opposite to each other. The first side plate is located on the side of the first spray chamber away from the second spray chamber, and the second side plate is located on the side of the second spray chamber away from the first spray chamber.

[0006] The first spray chamber has at least one first external slot on the side near the first side plate, and the first external slot and the first side plate form a first dust removal air duct; the second spray chamber has at least one second external slot on the side near the second side plate, and the second external slot and the second side plate form a second dust removal air duct.

[0007] The first spray chamber body has a first inner groove on the side near the second spray chamber body, and a sealing element is provided along the circumference of the first inner groove; the second spray chamber body has a second inner groove corresponding to the position of the first inner groove, and the first inner groove and the second inner groove are closed by the sealing element to form an air storage chamber; the first spray chamber body has an air port communicating with the air storage chamber.

[0008] A first guide surface is provided at the bottom of the first spray chamber near the second spray chamber, and a second guide surface is provided at the position of the second spray chamber corresponding to the first guide surface. The first guide surface and the second guide surface form an air outlet channel and are connected to the bottom of the air storage chamber.

[0009] Furthermore, the first spray chamber and the second spray chamber have the same structure and form a dust removal body. Each end of the dust removal body is provided with a pipe interface, and the first dust removal air duct and the second dust removal air duct are both connected to the pipe interface.

[0010] Furthermore, the first dust removal duct is arranged along the length of the first spray cavity, and one end of the first dust removal duct is connected to a pipe interface.

[0011] Furthermore, the first dust removal duct has an opening at one end near the pipe interface, and communicates with the corresponding second dust removal duct through the opening.

[0012] Furthermore, the height of the first dust removal duct gradually increases from the end furthest from the pipe interface toward the pipe interface.

[0013] Furthermore, a pressure detection port is provided on the second spray chamber, and the pressure detection port is connected to the air storage chamber.

[0014] Furthermore, the gas storage chamber has a V-shaped cross-section, and the width of the gas storage chamber gradually decreases from top to bottom.

[0015] Furthermore, the top of the air outlet channel is connected to the bottom of the air storage chamber, and the width of the air outlet channel gradually increases from top to bottom.

[0016] Furthermore, the first guide surface is located on the lower side of the first inner slot and is arranged along the length direction of the first inner slot, and the first guide surface gradually slopes outward from top to bottom.

[0017] Furthermore, the sealing element provided on the periphery of the first inner groove has a notch at the position of the first guide surface.

[0018] Compared to existing technologies, the advantages of this invention are that, by adopting the above-mentioned solution, the structure is simple and suitable for non-contact dust removal of workpieces. In use, an external air source is first connected through the air inlet to blow compressed air into the air storage chamber. The compressed air flows into the upper half of the air storage chamber and enters the air outlet channel from the lower half of the air storage chamber. It is then ejected from the air outlet channel. Due to the small cross-section of the lower half of the air storage chamber, the airflow velocity is accelerated, and the air is quickly ejected through the air outlet channel to blow up the dust on the surface of the workpiece. The dust removal ducts arranged opposite to the outer sides of the first and second spray chambers are connected to a high-flow-rate fan. The high-flow-rate airflow generated by the fan causes the blown dust to flow with the airflow and be sucked into the dust removal duct. Through the collection of the dust removal duct, a large amount of dust can be effectively removed, thereby improving the cleaning efficiency and having good market application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a dust removal head for a cleaning machine according to one embodiment of the present invention;

[0020] Figure 2 For the present utility model Figure 1 A cross-sectional view of the dust removal head of the cleaning machine in the embodiment;

[0021] Figure 3 For the present utility model Figure 1 Schematic diagrams of the first and second spray chambers in the embodiment;

[0022] Figure 4 For the present utility model Figure 3 Enlarged view of section A;

[0023] Figure 5 For the present utility model Figure 1 One of the schematic diagrams of the structure of the first spray chamber in the embodiment;

[0024] Figure 6 For the present utility model Figure 1 Second schematic diagram of the structure of the first spray chamber in the embodiment;

[0025] Figure 7 For the present utility model Figure 6 Enlarged view of section B;

[0026] In the figure, 1. First side plate; 2. First spray chamber; 21. Air inlet; 22. First external slot; 23. First dust removal air duct; 24. Opening; 25. Seal; 26. First internal slot; 27. First guide surface; 3. Second spray chamber; 31. Air pressure detection port; 32. Second external slot; 4. Second side plate; 5. Air storage chamber; 6. Air outlet channel; 7. Pipe interface. Detailed Implementation

[0027] To facilitate understanding of this utility model by those skilled in the art, specific embodiments of this utility model are described below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "mounted," "fixed," "upper," "lower," and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0030] One embodiment of this utility model is as follows: Figure 1 , 2 As shown in Figures 5 and 6, the dust removal head of this cleaning machine is used for non-contact dust removal from the workpiece, and includes a first side plate 1, a first spray chamber 2, a second spray chamber 3, and a second side plate 4.

[0031] The first spray chamber 2 and the second spray chamber 3 are arranged opposite to each other. The first side plate 1 is arranged on the side of the first spray chamber 2 away from the second spray chamber 3, and the second side plate 4 is arranged on the side of the second spray chamber 3 away from the first spray chamber 2.

[0032] The first spray chamber 2 has at least one first external slot 22 on the side near the first side plate 1, and the first external slot 22 and the first side plate 1 form a first dust removal air duct 23; the second spray chamber 3 has at least one second external slot 32 on the side near the second side plate 4, and the second external slot 32 and the second side plate 4 form a second dust removal air duct.

[0033] The first spray chamber 2 has a first inner groove 26 on the side near the second spray chamber 3, and a sealing element 25 is provided along the circumference of the first inner groove 26; the second spray chamber 3 has a second inner groove corresponding to the position of the first inner groove 26, and the first inner groove 26 and the second inner groove are closed by the sealing element 25 to form an air storage chamber 5; the first spray chamber 2 has an air port 21 communicating with the air storage chamber 5;

[0034] A first guide surface 27 is provided at the bottom of the first spray chamber 2 near the second spray chamber 3. A second guide surface is provided at the position of the second spray chamber 3 corresponding to the first guide surface 27. The first guide surface 27 and the second guide surface form an air outlet channel 6 and communicate with the bottom of the air storage chamber 5.

[0035] The dust removal head of this cleaning machine is suitable for non-contact dust removal of workpieces. In use, an external air source is first connected through the air port 21 to blow compressed air into the air storage chamber 5. The compressed air flows into the upper half of the air storage chamber 5 and enters the air outlet 6 from the lower half of the air storage chamber 5. It is then ejected from the air outlet 6. Due to the small cross-section of the lower half of the air storage chamber 5, the airflow velocity is increased, and it is quickly ejected through the air outlet 6 to blow up the dust on the surface of the workpiece. The dust removal ducts arranged opposite to the outer sides of the first spray chamber 2 and the second spray chamber 3 are connected to a high-flow fan. The high-flow airflow generated by the fan causes the blown dust to flow with the airflow and be sucked into the dust removal duct. The dust removal duct collects the dust, so that a large amount of dust can be effectively removed, thereby improving the cleaning efficiency.

[0036] In this embodiment, as Figure 1 , 3 As shown, the first spray chamber 2 and the second spray chamber 3 have the same structure and form a dust removal body. Each end of the dust removal body is provided with a pipe interface 7. The first dust removal air duct 23 and the second dust removal air duct are both connected to the pipe interface 7.

[0037] Specifically, the first spray chamber 2 and the second spray chamber 3 have the same structure and are arranged symmetrically. The dust removal air duct is located on the two outer sides of the first spray chamber 2 and the second spray chamber 3 that are far apart. The air storage chamber 5 is located on the two inner sides of the first spray chamber 2 and the second spray chamber 3 that are close to each other.

[0038] In this embodiment, as Figure 5 As shown, the first dust removal duct 23 is arranged along the length direction of the first spray chamber 2, and one end of the first dust removal duct 23 is connected to a pipe interface 7.

[0039] Specifically, two first dust removal air ducts 23 are symmetrically arranged on the outer side of the first spray chamber 2 along its own length direction. The two outer ends of the two first dust removal air ducts 23 are respectively connected to the two pipe interfaces 7. The dust blown up is sucked into the connected first dust removal air ducts 23 through the pipe interfaces 7.

[0040] In this embodiment, as Figure 5 As shown, the first dust removal duct 23 has an opening 24 at one end near the pipe interface 7, and is connected to the corresponding second dust removal duct through the opening 24.

[0041] Specifically, the first dust removal duct 23 on the left side of the first spray chamber 2 is connected to the second dust removal duct on the left side of the second spray chamber 3, and both are connected to the pipe interface 7 at the left end.

[0042] In this embodiment, as Figure 5 As shown, the height of the first dust removal duct 23 gradually increases from the end away from the pipe interface 7 toward the pipe interface 7.

[0043] Specifically, the two first dust removal air ducts 23 on the first spray chamber 2 gradually increase in size from the center to the two outer ends, so that the diameter of the first dust removal air duct 23 gradually narrows from the outside to the inside. The dust blown up is drawn into the dust removal air duct from the pipe interface 7 along with the airflow. Due to the narrowing of the diameter of the dust removal air duct, the gas flow rate is increased and the cleaning efficiency is improved.

[0044] In this embodiment, as Figure 1 As shown, a pressure detection port 31 is provided on the second spray chamber 3, and the pressure detection port 31 is connected to the air storage chamber 5.

[0045] Specifically, the air pressure detection port 31 is located on the outside of the second spray cavity 3 and communicates with the upper part of the air storage cavity 5 to detect the air pressure of the air storage cavity 5.

[0046] In this embodiment, as Figure 2 As shown, the cross-section of the gas storage chamber 5 is V-shaped, and the width of the gas storage chamber 5 gradually decreases from top to bottom.

[0047] Specifically, the air storage chamber 5 is divided into an upper half and a lower half. The air inlet 21 on the first spray chamber 2 is connected to the upper half of the air storage chamber 5. The cross-section of the lower half of the air storage chamber 5 gradually decreases from top to bottom. The bottom of the air storage chamber 5 has the smallest width and is connected to the air outlet channel 6.

[0048] In this embodiment, as Figure 3 , 4 As shown, the top of the air outlet channel 6 is connected to the bottom of the air storage chamber 5, and the width of the air outlet channel 6 gradually increases from top to bottom.

[0049] Specifically, the cross-section of the air outlet channel 6 is inverted V-shaped. Gas is pressurized and flows into the upper half of the gas storage chamber 5, passes through the narrowed lower half of the gas storage chamber 5, and is ejected from the air outlet channel 6. As the cross-section of the lower half of the gas storage chamber 5 gradually decreases, the airflow velocity increases and it is quickly ejected through the air outlet channel 6.

[0050] In this embodiment, as Figure 6 , 7As shown, the first guide surface 27 is located on the lower side of the first inner slot 26 and is arranged along the length direction of the first inner slot 26. The first guide surface 27 gradually slopes outward from top to bottom.

[0051] Specifically, the first guide surface 27 and the second guide surface are arranged opposite to each other and are both gradually inclined outward from top to bottom, so that the cross-section of the air outlet channel 6 formed by them gradually increases from top to bottom. The long strip-shaped air outlet channel 6 is located at the bottom of the dust removal body so as to be close to the surface of the workpiece.

[0052] In this embodiment, as Figure 6 As shown, the sealing element 25 disposed around the first inner groove 26 has a notch at the position of the first guide surface 27.

[0053] Specifically, a notch is provided on the lower side of the sealing element 25 corresponding to the position of the first guide surface 27, so that the bottom of the air storage cavity 5 is connected to the air outlet channel 6.

[0054] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A dust removal head for a cleaning machine, used for non-contact dust removal from workpieces, characterized in that: It includes a first side plate (1), a first spray cavity (2), a second spray cavity (3), and a second side plate (4). The first spray cavity (2) and the second spray cavity (3) are arranged opposite to each other. The first side plate (1) is located on the side of the first spray cavity (2) away from the second spray cavity (3), and the second side plate (4) is located on the side of the second spray cavity (3) away from the first spray cavity (2). The first spray chamber (2) is provided with at least one first external slot (22) on the side near the first side plate (1), and the first external slot (22) and the first side plate (1) form a first dust removal air duct (23); the second spray chamber (3) is provided with at least one second external slot (32) on the side near the second side plate (4), and the second external slot (32) and the second side plate (4) form a second dust removal air duct; The first spray chamber (2) is provided with a first inner groove (26) on the side close to the second spray chamber (3), and a sealing element (25) is provided along the circumference of the first inner groove (26); the second spray chamber (3) is provided with a second inner groove corresponding to the position of the first inner groove (26), and the first inner groove (26) and the second inner groove are closed by the sealing element (25) to form an air storage chamber (5); the first spray chamber (2) is provided with an air port (21) communicating with the air storage chamber (5). The bottom of the first spray chamber (2) near the second spray chamber (3) is provided with a first guide surface (27), and the second spray chamber (3) is provided with a second guide surface corresponding to the position of the first guide surface (27). The first guide surface (27) and the second guide surface form an air outlet channel (6) and are connected to the bottom of the air storage chamber (5).

2. The dust removal head for a cleaning machine according to claim 1, characterized in that, The first spray chamber (2) and the second spray chamber (3) have the same structure and form a dust removal body. Each end of the dust removal body is provided with a pipe interface (7). The first dust removal air duct (23) and the second dust removal air duct are both connected to the pipe interface (7).

3. The dust removal head for a cleaning machine according to claim 2, characterized in that, The first dust removal duct (23) is arranged along the length direction of the first spray chamber (2), and one end of the first dust removal duct (23) is connected to a pipe interface (7).

4. The dust removal head for a cleaning machine according to claim 3, characterized in that, The first dust removal duct (23) has an opening (24) at one end near the pipe interface (7), and is connected to the corresponding second dust removal duct through the opening (24).

5. The dust removal head for a cleaning machine according to claim 3, characterized in that, The height of the first dust removal duct (23) gradually increases from the end away from the pipe interface (7) toward the pipe interface (7).

6. The dust removal head for a cleaning machine according to claim 1, characterized in that, A pressure detection port (31) is provided on the second spray cavity (3), and the pressure detection port (31) is connected to the air storage cavity (5).

7. The dust removal head for a cleaning machine according to claim 1, characterized in that, The gas storage chamber (5) has a V-shaped cross section, and the width of the gas storage chamber (5) gradually decreases from top to bottom.

8. The dust removal head for a cleaning machine according to claim 7, characterized in that, The top of the air outlet channel (6) is connected to the bottom of the air storage chamber (5), and the width of the air outlet channel (6) gradually increases from top to bottom.

9. The dust removal head for a cleaning machine according to claim 7, characterized in that, The first guide surface (27) is located on the lower side of the first inner slot (26) and is arranged along the length direction of the first inner slot (26). The first guide surface (27) gradually tilts outward from top to bottom.

10. The dust removal head for a cleaning machine according to claim 1, characterized in that, The sealing element (25) provided around the first inner groove (26) has a notch at the position of the first guide surface (27).

Images