Swing soot blowing mechanism

Abstract

The present application relates to the technical field of automatic production equipment, and particularly relates to a swing soot blowing mechanism, which comprises a rack, an air outlet device, an air cylinder and an ion generator. The middle part of the air outlet device is hinged to the rack, the front end is provided with an air outlet hole, and the rear end is hinged to the telescopic rod of the air cylinder; the air cylinder drives the air outlet device to reciprocating swing to form a dynamic sweeping airflow. A variable cross-section pressure-equalizing cavity is arranged in the air outlet device, which is used for simplifying the air path and improving the flow rate. The rack is provided with a limiting block with an inclined surface, which cooperates with the adjusting bolt on the air outlet device to realize accurate limiting and stepless fine adjustment of the swing angle. The ions generated by the ion generator are sprayed out along with the airflow through the cavity to neutralize static electricity. The present application can effectively eliminate soot blowing dead angles, expand the dust removal coverage, simplify the pipeline layout and save space, and realize efficient and flexible automatic dust removal operation for complex workpieces.

Description

Technical Field

[0001] This invention relates to a swing blowing mechanism and to automated production equipment for electronic components and other devices that require automatic blowing. Background Technology

[0002] In the automated production of precision products such as electronic components (e.g., relays), dust removal is a crucial step in ensuring product quality and the reliability of subsequent processes. With the rapid development of industrial automation, the demand for dust removal mechanisms capable of efficiently and thoroughly removing dust from product surfaces and interiors is increasing. Currently, most automated production equipment uses fixed dust removal mechanisms, which typically utilize chain conveyors or pushers to deliver products to a fixed dust removal port for dust removal. However, this traditional fixed dust removal method has significant limitations in practical applications. Because the position and direction of the dust removal port are fixed, the airflow cannot reach the complex internal structure or hidden corners of the product, resulting in insufficient dust removal coverage and incomplete dust removal, thus affecting the final product quality. To improve the dust removal effect, existing solutions often require increasing the number of air pipes and arranging multiple densely packed air ports to forcibly expand the coverage area. This not only makes the internal airflow layout of the equipment extremely complex, increasing the difficulty of installation and maintenance, but also occupies a large amount of equipment space. Furthermore, this multi-air-pipe layout is time-consuming and labor-intensive, and still cannot flexibly adjust the angle according to the specific shape of the product. Summary of the Invention

[0003] This invention discloses a swing blowing mechanism, which aims to solve the problems mentioned above.

[0004] The present invention adopts the following solution:

[0005] A swing-type soot blowing mechanism includes a frame; it also includes: an air outlet device, the front end face of which is provided with an air outlet, the middle part of which is configured to be hinged to the frame so that the air outlet can swing up and down; a cylinder, which is configured to be mounted on the frame, the telescopic rod of which is configured to be hinged to the rear end of the air outlet device; the extension and retraction of the telescopic rod of the cylinder can drive the air outlet device to swing up and down to change the air outlet direction.

[0006] In this embodiment of the invention, the air outlet device is further provided with an adjusting bolt, and the frame is provided with a limit block. The adjusting bolt is configured to abut against the limit block to limit the swing angle of the air outlet device.

[0007] In this embodiment of the invention, the limiting block is disposed on the upper rear side of the frame, the adjusting bolt is configured to pass through the air outlet device from top to bottom, and the lower end face of the adjusting bolt is configured to abut against the upper end face of the limiting block to limit the upward tilt angle of the front end of the air outlet device.

[0008] In this embodiment of the invention, the upper surface of the limiting block is configured as a limiting inclined surface, which slopes downward from front to back.

[0009] In this embodiment of the invention, the rear end of the air outlet device is provided with an air inlet connector, the air inlet connector is configured to communicate with the cavity inside the air outlet device, and the front end face of the air outlet device is provided with at least one row of air outlet holes.

[0010] In this embodiment of the invention, rotating shafts are arranged on both sides of the middle of the air outlet device, and bearings are arranged on both sides of the frame. The rotating shafts are configured to be inserted into the bearings so that the air outlet device can rotate relative to the frame.

[0011] In this embodiment of the invention, a connecting block is provided in the middle of the rear end face of the air outlet device. The connecting block is connected to the telescopic rod of the cylinder via a pin shaft. The cylinder body is configured to be rotatably connected to the rear side.

[0012] In this embodiment of the invention, an air inlet connector is provided on the rear end face of the air outlet device located on both sides of the connecting block.

[0013] In this embodiment of the invention, an ion generator is arranged on one side of the frame, and the outlet of the ion generator is configured to be connected to the air inlet connector via a pipe.

[0014] In this embodiment of the invention, the thickness of the rear end of the air outlet cavity is greater than the thickness of the front end, the upper end of the cavity is configured as a plane, the front and rear sides of the lower end of the cavity are configured as planes, and a transition slope is formed between the front and rear sides of the lower end of the cavity.

[0015] The present invention provides a swing-type soot blowing mechanism, which has the following beneficial effects: Firstly, the dynamic structural design of the air outlet device, driven by a cylinder, reciprocates around a central axis, transforming traditional point-to-point fixed blowing into face-to-face dynamic sweeping blowing. This motion significantly expands the effective area of ​​the airflow, allowing it to penetrate the gaps and grooves of the product from multiple angles, completely solving the problem of dead zones in fixed dust blowing nozzles and greatly improving dust removal quality.

[0016] Secondly, the "one-in-multiple-out" or "dual-in-multiple-out" design of the integrated cavity inside the air outlet device replaces the cumbersome method of traditional technology that requires separate air pipes for each air outlet. The automatic and balanced distribution of air pressure is achieved through the internal geometry of the cavity, which not only simplifies the overall air path layout of the equipment and reduces the failure rate, but also significantly saves space within the frame, making the overall mechanism more compact and aesthetically pleasing, and facilitating integrated installation on space-constrained automated production lines.

[0017] Furthermore, this invention ingeniously utilizes an adjusting bolt and a beveled limiting block to form a stroke adjustment mechanism. This purely mechanical adjustment method is simple in structure, stable in performance, and unaffected by fluctuations in electricity or air pressure. Operators do not need complex program debugging; they can achieve sub-millimeter-level fine adjustments to the swing boundary simply by manually rotating the bolt. This ensures a high degree of matching between the blowing action and product positioning, preventing interference and collisions to surrounding components caused by excessive swing amplitude.

[0018] Finally, the deep integration of the ion generator and the oscillating mechanism enables the mechanism to perform mechanical blowing while also possessing highly efficient electrostatic elimination capabilities. For stubborn dust that is commonly attracted by electrostatic adsorption in the production of electronic components, this invention neutralizes static electricity through ion wind, reducing the adhesion energy between dust and substrate. Combined with the impact force of the oscillating airflow, it achieves a cleaning effect far superior to traditional dust blowing methods, effectively ensuring the yield rate of subsequent coating, assembly, and other processes. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of an embodiment of the present invention.

[0021] Figure 2 This is a rear view in an embodiment of the present invention.

[0022] Figure 3 This is a side view of an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the air outlet device in an embodiment of the present invention.

[0024] 100. Frame; 101. Bearing seat; 102. Limiting block; 103. Limiting slope; 200. Air outlet device; 201. Rotating shaft; 202. Air outlet; 203. Cavity; 204. Adjusting bolt; 205. Connecting block; 206. Transition slope section; 300. Cylinder; 400. Air inlet connector; 500. Ion generator. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Referring to the accompanying drawings, the present invention provides a swing-type soot blowing mechanism, the core structure of which is integrated into five main parts: a support system, an execution system, a power drive system, an adjustment and limit system, and an electrostatic elimination system. The frame 100, serving as the physical support reference for the entire mechanism, is welded from high-strength steel and precision milled to ensure the horizontal and vertical alignment of the mounting plane. A pair of bearing seats 101 are symmetrically installed on the left and right sides of the frame 100 using bolts. Bearings are press-fitted inside the bearing seats 101, providing a mechanical foundation for the smooth rotation of the subsequent air outlet device 200.

[0027] The exhaust device 200, as the component directly performing the purging task, has a flat, box-like structure that is thinner at the front and thicker at the back. This design facilitates its arrangement within the limited space of the production line. The exhaust device 200 has two rotating shafts 201 on either side of its central section. The shaft diameter of the rotating shaft 201 is interference-fitted with the inner diameter of the bearing in the bearing housing 101 on the frame 100. Through this hinged connection, the exhaust device 200 performs a reciprocating fan-shaped oscillation motion within the vertical plane defined by the frame 100, with the rotating shaft 201 as the center. At least one row of tiny exhaust holes 202 are evenly arranged along the width direction on the front end face of the exhaust device 200. The diameter of these air outlets 202 is typically set between 0.8 mm and 1.2 mm. Through this fine-hole injection, the internally pressurized airflow is converted into a jet with extremely high kinetic energy. At the same time, the angles of these air outlets do not all have to be parallel. The axes (air outlet directions) of different air outlets form an angle in the horizontal and numerical directions, thus enabling multi-directional blowing.

[0028] A closer look at the internal structure of the air outlet device 200 reveals a unique cavity 203. This cavity 203 is not a simple square cavity, but rather employs a variable cross-section, optimized fluid dynamics design. The vertical height of the rear end of the cavity 203 is significantly greater than that of the front end. This spatial distribution allows compressed air to first obtain a pressure-stabilizing buffer space upon entering the rear end of the cavity 203. The upper inner wall of the cavity 203 is designed as a completely horizontal plane, while the lower inner wall is divided from back to front into a rear horizontal section, a transition slope section, and a front horizontal section. The transition slope section 206 extends upward at an inclination angle of 35 to 55 degrees, forming a gradually narrowing nozzle-like channel together with the upper inner wall. As the ion-carrying compressed air flows from the rear end to the front end of the cavity 203, the continuous decrease in cross-sectional area forces an increase in airflow velocity, thereby ensuring maximum impulse at the outlet 202, achieving the physical removal of stubborn dust from the product surface.

[0029] The power drive is primarily achieved using cylinder 300. A connecting block 205 is fixedly mounted at the center of the rear end face of the air outlet device 200. The end of the telescopic rod of cylinder 300 is hinged to the connecting block 205 via a pin. Simultaneously, the tail end of the cylinder body of cylinder 300 is mounted on the lower rear side of the frame 100 via a rotating support. This double-hinged linkage mechanism design transforms the linear reciprocating motion of the telescopic rod of cylinder 300 into angular rotational motion of the air outlet device 200 around the rotating shaft 201. When the telescopic rod of cylinder 300 extends outward, the connecting block 205 is forced upward, causing the rear end of the air outlet device 200 to rise. Due to the lever effect, the front air outlet 202 correspondingly tilts downward; conversely, when the telescopic rod of cylinder 300 retracts, the air outlet 202 tilts upward. By controlling the reversing frequency of cylinder 300, the airflow curtain emitted from the air outlet 202 continuously sweeps across the vertical space, covering all height levels of the product to be cleaned.

[0030] To prevent the venting device 200 from overshooting or interfering with the conveying equipment below during its swing, this invention incorporates a precise mechanical limiting system. A limiting block 102 is fixed at the upper rear side of the frame 100, located below the venting device. The top surface of the limiting block 102 is machined with a specific limiting slope 103, which slopes downwards from front to back. Correspondingly, an adjusting bolt 204 is installed at the rear end of the venting device 200. This adjusting bolt does not pass through the cavity. The adjusting bolt 204 passes through the housing of the venting device 200, with its upper end positioned above the venting device for easy adjustment, and its lower end protruding directly above the limiting block 102. The operator can change the effective downward extension length by rotating the adjusting bolt 204. When the rear end of the air outlet device 200 swings downwards driven by the cylinder, the bottom end of the adjusting bolt 204 eventually abuts against the limiting inclined surface 103. Similarly, another adjusting bolt can be inserted from bottom to top, and a limiting block can also be set above the air outlet device to adjust the downward swing angle of the front end of the air outlet device. Due to the presence of the limiting inclined surface 103, the height at which the adjusting bolt 204 contacts the inclined surface varies with different extension lengths. This design allows operators to ensure that the blowing airflow is precisely locked within the effective area of ​​the product through simple manual adjustment.

[0031] For static electricity removal, an ion generator 500 is configured on the side of the frame 100. The output port of the ion generator 500 is connected to the air inlet connector 400 on the rear end face of the air outlet device 200 via a flexible hose. In this embodiment, to ensure the uniformity of air pressure during wide-range purging, two air inlets 400 are symmetrically arranged on the rear end face of the air outlet device 200, located on both sides of the connecting block 205. A high-concentration positive and negative ion flow is injected into the cavity 203 through these two air inlets 400. Under the guiding effect of the cavity 203, the ion airflow has been fully mixed and distributed before exiting the air outlet 202. When the charged airflow comes into contact with the surface of the electronic components, it quickly neutralizes the surface static electricity, causing the tiny dust particles that were originally adsorbed by electrostatic force to be in a suspended or loose state, and then completely carried away by the subsequent high-speed airflow.

[0032] The operation process of the swing-type soot blowing mechanism of the present invention on an actual automated production line is as follows: S1: System Initialization and Air Source Connection. First, turn on the factory compressed air source and simultaneously start the ion generator 500 to produce a stable ion air source. After passing through the ion generator 500, the compressed air carries a charge and is injected into the two air inlet connectors 400 via hoses. The specific components used for blowing air, such as the blower, are the same as in existing technology and will not be described in detail here.

[0033] S2: Internal airflow pressure equalization. The air entering cavity 203 has its velocity reduced and pressure equalized in the spacious rear area, and then propels forward along the transition slope section of the lower wall. The airflow kinetic energy increases as it passes through the cross-sectional contraction zone. Finally, the airflow forms a parallel, highly directional ion flow beam at the air outlet 202 at the front end of the outlet device 200.

[0034] S3: Dynamic Oscillating Blowing. The control system drives cylinder 300 to start working. The extension rod of cylinder 300 performs reciprocating motion at a set frequency. The air outlet device 200 then oscillates back and forth in the vertical direction around the rotating shaft 201. The electronic components to be cleaned pass through the blowing station at a uniform speed by the conveyor chain below. At this time, the oscillating airflow acts like a dynamic brush, covering the top, front, and rear sides of the product from all angles.

[0035] S4: Stroke Limit and Angle Fine-Tuning. During the commissioning phase, observe whether the airflow sweeps across the bottom of the product. If the sweeping range is too small, unscrew the adjusting bolt 204 upwards to increase the upward stroke of the rear end of the air outlet 200, thereby increasing the downward angle of the front air outlet 202. If the sweeping range is too large, causing the airflow to impact the conveyor belt, screw the adjusting bolt 204 downwards. The end of the adjusting bolt 204 abuts against the limiting inclined surface 103, forcibly stopping the rotation of the air outlet 200, thus locking the optimal purging range and increasing operational efficiency.

[0036] S5: Dust Collection and Operation Completion. Dust blown off the product surface is carried away by the continuous airflow through the dust collection system below or by the exhaust equipment. Due to the effect of ionizing air, the product surface no longer has residual static electricity that attracts dust, ensuring that the product maintains long-term cleanliness after leaving the dust blowing station.

[0037] The specific application scenarios of this invention are typically located before the cleaning or coating stages of electronic product assembly lines. This invention uses a oscillating motion to allow airflow to enter the interior of holes at different incident angles, utilizing airflow reflection and vortex effects to carry out micro-debris from deep holes.

[0038] The air inlet connector 400 adopts a quick-connect design, similar to the structure of a washing machine's water inlet pipe, allowing maintenance personnel to quickly disassemble the pipe when cleaning scale buildup inside the cavity 203. The ion generator 500 is mounted on an independent bracket on one side of the frame 100, away from moving parts, thus avoiding the impact of mechanical vibration on the lifespan of electronic components.

[0039] Through the coordinated operation of the aforementioned components, the oscillating dust removal mechanism of this invention achieves a highly efficient, reliable, and easily adjustable dust removal solution. Utilizing a simple pneumatic circuit and mechanical linkage, it solves the technical problem of uneven dust removal on the surface of products with complex geometries. The mounting position of the limiting block 102 on the frame 100 can also be moved back and forth as needed. By changing the horizontal displacement of the limiting block 102 relative to the adjusting bolt 204, and in conjunction with the slope of the limiting inclined surface 103, a wider range of initial angle adjustments can be achieved. This multi-degree-of-freedom adjustment scheme gives the mechanism extremely strong flexible production capabilities, enabling it to adapt to various dust removal needs, from micro-miniature electronic components to large structural parts.

[0040] In summary, this invention provides a compact and powerful oscillating soot blowing mechanism through the deep integration of mechanical transmission, fluid chamber design, and manual limit adjustment. Its rotational freedom achieved through the rotating shaft 201, combined with the variable cross-section acceleration effect of the cavity 203 and the electrostatic elimination function of the ion generator 500, demonstrates significant technological advantages in the field of automated cleaning. Every design detail, from the angle selection of the limiting inclined surface 103 to the installation layout of the adjusting bolts 204, is designed to improve the accuracy and efficiency of soot blowing operations, providing strong hardware support for quality control in precision manufacturing.

[0041] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A swing-type soot blowing mechanism, comprising a frame; characterized in that, Also includes: An air outlet device is provided with an air outlet hole on its front end face. The middle part of the air outlet device is configured to be hinged to the frame so that the air outlet hole can swing up and down. A cylinder configured to be mounted on a frame, wherein the extension rod of the cylinder is configured to be hinged to the rear end of an air outlet device; The extension and retraction of the cylinder telescopic rod can drive the air outlet device to swing up and down, thereby changing the air outlet direction.

2. The oscillating soot blowing mechanism according to claim 1, characterized in that, The air outlet device is also equipped with an adjusting bolt, and the frame is equipped with a limit block. The adjusting bolt is configured to abut against the limit block to limit the swing angle of the air outlet device.

3. The oscillating soot blowing mechanism according to claim 2, characterized in that, The limiting block is positioned above the rear side of the frame, and the adjusting bolt is configured to pass through the air outlet device from top to bottom. The lower end face of the adjusting bolt is configured to abut against the upper end face of the limiting block to limit the upward tilt angle of the front end of the air outlet device.

4. The oscillating soot blowing mechanism according to claim 3, characterized in that, The upper surface of the limiting block is configured as a limiting slope, which slopes downward from front to back.

5. A swing-type soot blowing mechanism according to any one of claims 1-4, characterized in that, The rear end of the air outlet device is equipped with an air inlet connector, which is configured to communicate with the cavity inside the air outlet device. The front end of the air outlet device is equipped with at least one row of air outlet holes.

6. The oscillating soot blowing mechanism according to claim 5, characterized in that, The air outlet device is provided with rotating shafts on both sides of the middle section, and bearings are provided on both sides of the frame. The rotating shafts are configured to be inserted into the bearings so that the air outlet device can rotate relative to the frame.

7. The oscillating soot blowing mechanism according to claim 6, characterized in that, A connecting block is provided in the middle of the rear end face of the air outlet device. The connecting block is connected to the telescopic rod of the cylinder via a pin shaft. The cylinder body is configured to be rotatably connected to the rear side.

8. The oscillating soot blowing mechanism according to claim 7, characterized in that, An air inlet connector is provided on the rear end face of the air outlet device located on both sides of the connecting block.

9. A swing-type soot blowing mechanism according to claim 8, characterized in that, An ion generator is installed on one side of the frame, and the outlet of the ion generator is configured to be connected to the air inlet connector via a pipe.

10. A swing blowing mechanism according to claim 9, characterized in that, The thickness of the rear end of the air outlet cavity is greater than the thickness of the front end. The upper end of the cavity is configured as a plane, and the front and rear sides of the lower end of the cavity are configured as planes. A transitional slope is formed between the front and rear sides of the lower end of the cavity.

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