Automatic blowing and dust removing device and process for discharge port of sand blasting machine

Abstract

The application relates to the technical field of sand blasting dust removal devices, and discloses a sand blasting machine discharge port automatic blowing dust removal device and process, which comprises a mounting frame, a baffle, a first baffle curtain and a second baffle curtain are installed on the mounting frame, and the baffle, the first baffle curtain and the second baffle curtain jointly form a semi-closed blowing area; a blowing pipe is installed on the mounting frame, a plurality of bamboo joint pipes are installed on the blowing pipe, and a nozzle is installed at the end of the bamboo joint pipe far from the blowing pipe. Through the cooperative arrangement of the mounting frame, the baffle, the first baffle curtain, the second baffle curtain, the blowing pipe, the bamboo joint pipe, the nozzle and the air inlet pipe, full-automatic blowing dust removal of a workpiece discharged from a sand blasting machine is realized, manual handheld air gun operation is completely replaced, high-intensity manual labor is eliminated, the discharge efficiency is completely matched with the operation rhythm of the sand blasting machine, and the overall production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of sandblasting dust removal equipment technology, specifically to an automatic blowing dust removal device and process for the discharge port of a sandblasting machine. Background Technology

[0002] Currently, when sandblasting workpieces in the industry, after the automatic sandblasting machine completes the surface sandblasting treatment, the workpiece is conveyed out of the sandblasting machine outlet along the discharge conveyor belt. At this time, a large amount of sand and dust will be attached to the surface of the workpiece, making it impossible to directly enter the next process. Therefore, it is necessary to clean the surface of the workpiece. Most existing technologies use manual handheld air guns to blow and clean the workpieces on the conveyor belt one by one to remove the residual sand and dust on the surface of the workpiece.

[0003] However, the existing technology has the following problems: The existing method of manually blowing with a handheld air gun has obvious shortcomings. Not only is the work labor-intensive and the cleaning efficiency low, making it difficult to match the continuous production rhythm of the sandblasting machine, but it also leads to the unorganized spread of sand dust, polluting the workshop production environment and endangering the health of operators. At the same time, the effect of manual blowing is greatly affected by the operator's skill level, and sand can easily remain in the corners and hidden places of the workpiece. Incomplete blowing directly affects the processing quality of subsequent processes. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic dust removal device and process for blowing and cleaning the outlet of a sandblasting machine in order to solve the above-mentioned problems. It aims to overcome the shortcomings of the existing technology of manually cleaning dust from sandblasted workpieces, which involves high labor intensity and low cleaning efficiency, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides an automatic blowing and dust removal device for the discharge port of a sandblasting machine, comprising a mounting frame, on which a baffle, a first baffle curtain and a second baffle curtain are mounted, the baffle, the first baffle curtain and the second baffle curtain together forming a semi-enclosed blowing area; a blowing pipe is mounted on the mounting frame, and multiple bamboo-joint tubes are mounted on the blowing pipe, with a nozzle mounted on the end of the bamboo-joint tubes away from the blowing pipe.

[0006] Preferably, the mounting frame is erected above the conveyor line, with the first curtain facing upstream of the conveyor line and the second curtain facing downstream of the conveyor line. Both the first and second curtains are made of flexible material and hang downwards to block airflow and dust spillage.

[0007] Preferably, the baffle is installed in a U-shape on the conveyor line, with the first baffle and the second baffle located at the openings on both sides of the baffle, together forming a semi-enclosed purging area.

[0008] Preferably, the purge pipe passes through the baffle, and one end of the purge pipe is connected to an air inlet pipe, which is connected to an external air supply device.

[0009] Preferably, the purge pipe is located between the first baffle and the second baffle, and the purge pipe, the first baffle, and the second baffle are parallel to each other.

[0010] Preferably, the bamboo joint tube is rotatably connected to the blowing tube, the bamboo joint tube extends vertically downward, and the blowing angle of the bamboo joint tube can be adjusted.

[0011] Preferably, the nozzle is detachably installed at the bottom of the bamboo tube, and the nozzle is a flat nozzle to form a wide and uniform blowing surface.

[0012] Preferably, the system also includes a sand bin located below the purging area for collecting sand material that falls during purging.

[0013] Preferably, the sand bin is detachably installed at the bottom of the conveyor line. As the workpieces on the conveyor line pass over the sand bin, the blown sand falls into the sand bin for recycling.

[0014] A process for an automatic dust removal device for the discharge port of a sandblasting machine includes the following steps: Step 1: The sandblasting machine is started, and the conveyor line starts simultaneously. The sandblasted workpiece is conveyed through the conveyor line, passes through the first baffle, and enters the blowing area formed by the baffle, the first baffle, and the second baffle. Step 2: The purge pipe supplies air synchronously with the external air supply device through the air inlet pipe. The high-pressure airflow is sprayed downward from the nozzle through the bamboo joint tube, forming a continuous purge surface in the purge area. Step 3: The workpiece passes through the blowing area at a constant speed on the conveyor line, and the high-pressure airflow from the nozzles completely blows off the sand and dust on the surface of the workpiece. Step 4: The blown-off sand and dust fall into the sand bin below the blowing area for collection, realizing the recycling of sand; Step 5: The cleaned workpiece passes through the second baffle along the conveyor line and is sent out of the cleaning area; Step Six: Employees directly collect the workpieces sent out of the blowing area without the need for additional manual blowing.

[0015] The beneficial effects are: 1. The automatic dust removal device at the outlet of the sandblasting machine, through the coordinated arrangement of the mounting frame, baffle, first baffle curtain, second baffle curtain, blowing pipe, bamboo joint pipe, nozzle, and air inlet pipe, enables the sandblasting machine to automatically blow and remove dust from the output workpiece, completely replacing manual hand-held air gun operation, eliminating high-intensity manual labor, and the output efficiency is perfectly matched with the sandblasting machine's operating rhythm, resulting in a significant improvement in overall production efficiency.

[0016] 2. The automatic dust removal device at the outlet of the sandblasting machine effectively controls the unorganized diffusion of sand dust through the combination of a semi-enclosed blowing area, a gapped conveyor belt, and a sand bin, significantly improving the workshop working environment. At the same time, the sand can be centrally recycled and reused, and the blowing effect is stable and without dead corners, reducing the cost of production materials and labor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mounting bracket structure of the present invention; Figure 3 This is a schematic diagram of the first curtain structure of the present invention; Figure 4 This is a schematic diagram of the purge tube structure of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged view of point A; Figure 6 This is a schematic diagram of the sand silo structure of the present invention.

[0019] The annotations in the attached figures are explained as follows: 1. Mounting frame; 2. Baffle; 3. First baffle; 4. Second baffle; 5. Blowpipe; 6. Bamboo tube; 7. Nozzle; 8. Air inlet pipe; 9. Sand chamber. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0022] Throughout this specification, references to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in one embodiment" or "in another embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0024] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0025] Please see Figure 1 - Figure 6 In one embodiment: An automatic dust removal device for the discharge port of a sandblasting machine includes a mounting frame 1. A baffle 2, a first baffle curtain 3, and a second baffle curtain 4 are mounted on the mounting frame 1. The baffle 2, the first baffle curtain 3, and the second baffle curtain 4 together form a semi-enclosed blowing area. The mounting frame 1 is positioned above the conveyor line, with the first baffle curtain 3 facing upstream of the conveyor line and the second baffle curtain 4 facing downstream of the conveyor line. Both the first baffle curtain 3 and the second baffle curtain 4 are made of flexible material and hang downwards to prevent airflow and dust overflow. The baffle 2 is mounted in a U-shape on the conveyor line. The first baffle 3 and the second baffle 4 are located at the openings on both sides of the baffle 2, forming a semi-enclosed blowing area. This semi-enclosed blowing area is a dedicated working area independently isolated from the discharge conveying section of the sandblasting machine. It can completely block the outward movement of the high-pressure blowing airflow and prevent the sand dust from spreading into the workshop environment without organization. The flexible material first baffle 3 and second baffle 4 do not hinder the normal conveying and passage of workpieces, and can continuously play a dual protective role of air isolation and dust prevention, solving the problem of dust pollution from manual blowing from the source.

[0026] Furthermore, a purge pipe 5 is installed on the mounting frame 1, and multiple bamboo-joint tubes 6 are installed on the purge pipe 5. A nozzle 7 is installed at the end of the bamboo-joint tube 6 away from the purge pipe 5. The purge pipe 5 passes through the baffle 2, and one end of the purge pipe 5 is connected to an air inlet pipe 8, which is connected to an external air supply device. The purge pipe 5 is located between the first baffle 3 and the second baffle 4, and the purge pipe 5, the first baffle 3, and the second baffle 4 are parallel. The purge pipe 5 serves as the core air supply pipeline, which can stably transmit high-pressure air. The air inlet pipe 8 is used to connect to the workshop air source to achieve air supply, so that the workpiece can be fully covered and blown when passing through at a uniform speed. The multiple bamboo-joint tubes 6, in conjunction with the nozzles 7, can form a multi-point synchronous blowing action, thereby blowing off the sand adhering to the surface of the workpiece, achieving an automated cleaning function. This eliminates the need for manual cleaning of the workpiece, improving the level of automation and overall operating efficiency. Through the coordinated setup of the mounting frame, baffle, first baffle curtain, second baffle curtain, blowing pipe, bamboo-joint tube, nozzle, and air inlet pipe, the workpiece output from the sandblasting machine can achieve fully automatic blowing and dust removal, completely replacing manual handheld air gun operation, eliminating high-intensity manual labor, and the output efficiency is perfectly matched with the operating rhythm of the sandblasting machine, resulting in a significant improvement in overall production efficiency.

[0027] In this embodiment, the purge pipe 5 is a 1-inch stainless steel pipe with an outer diameter of 32mm and a total length of 1150mm. Eight sets of bamboo-joint pipes 6 and nozzles 7 are evenly arranged on it. The first nozzle 7 is 150mm away from the end of the purge pipe 5, the second to fourth nozzles 7 are spaced 100mm apart, and the fifth to eighth nozzles 7 are located at 750mm, 850mm, 950mm, and 1050mm along the length of the purge pipe 5, respectively. The air inlet pipe 8 is connected to the workshop air source, and the air supply pressure is stably controlled at 0.5-0.8MPa. The parallel arrangement of the three pipes ensures that the purge airflow direction is completely consistent with the workpiece conveying direction, ensuring that the workpiece is purged in all directions and with full coverage when it passes through at a uniform speed.

[0028] In addition, the bamboo joint tube 6 is rotatably connected to the blowing tube 5. The bamboo joint tube 6 extends vertically downward and can adjust the blowing angle. The staff can freely rotate and adjust the blowing angle of the bamboo joint tube 6 to adapt to the blowing needs of workpieces of different shapes and sizes, accurately target the dead corners and hidden positions of the workpiece, avoid sand residue, achieve stable blowing without dead corners, and ensure cleaning effect.

[0029] In addition, the nozzle 7 is detachably installed at the bottom of the bamboo tube 6. The nozzle 7 adopts a flat nozzle to form a wide and uniform blowing surface. The flat nozzle 7 has a large air outlet coverage and uniform airflow distribution, which can form a continuous wide blowing surface. Compared with conventional nozzles, it blows more thoroughly and evenly. The detachable design makes it easy to replace, clean and maintain the nozzle 7, and can effectively adapt to the blowing conditions of different workpieces.

[0030] It is worth noting that the system also includes a sand bin 9, located below the purging area, for collecting the sand material that falls during purging. The sand bin 9 is detachably installed at the bottom of the conveyor line. Workpieces on the conveyor line pass over the sand bin 9, and the purged sand material falls into the sand bin 9 for recycling. In this embodiment, the conveyor line is a conveyor belt structure with gaps. The sand dust blown off the surface of the workpiece can fall smoothly into the sand bin 9 through the gaps in the conveyor belt, ensuring that the sand material is not scattered or left behind and is all collected and recycled. The sand bin 9 can realize the recycling of sand material without waste of consumables. The detachable installation facilitates the cleaning of the sand bin 9, the removal of sand material, and equipment maintenance, while avoiding secondary environmental pollution caused by the scattering of sand material. Through the combination of the semi-enclosed purging area, the gapped conveyor belt, and the sand bin, the unorganized diffusion of sand dust is effectively controlled, the workshop working environment is significantly improved, and the sand material can be centrally recycled and reused. The purging effect is stable and without dead corners, reducing the cost of production consumables and labor.

[0031] In another embodiment, an automatic dust removal process for the outlet of a sandblasting machine, employing an automatic dust removal device for the outlet of a sandblasting machine as described in the above embodiment, further includes the following steps: Step 1: The sandblasting machine is started, and the conveyor line starts synchronously. The sandblasted workpiece is conveyed through the conveyor line, passes through the first baffle 3 and enters the blowing area formed by the baffle 2, the first baffle 3 and the second baffle 4. The sandblasting machine and the conveyor line keep in sync, perfectly matching the continuous operation rhythm of the sandblasting machine. The flexible material of the first baffle 3 does not obstruct the passage of the workpiece, and the workpiece can smoothly enter the semi-enclosed blowing area, blocking the dust overflow from the source. Step 2: The purge pipe 5 is supplied with air synchronously with the external air supply device through the air inlet pipe 8. The high-pressure airflow is sprayed downward from the nozzle 7 through the bamboo joint pipe 6, forming a continuous purge surface in the purge area. The air inlet pipe 8 is connected to the workshop air source, and the air supply pressure is stably controlled at 0.5-0.8MPa. The stainless steel purge pipe 5 with an outer diameter of 32mm, together with 8 evenly arranged flat nozzles 7, forms a wide, uniform, and continuous full-coverage purge surface. Step 3: The workpiece passes through the blowing area at a constant speed on the conveyor line. The high-pressure airflow from nozzle 7 completely blows off the sand and dust on the surface of the workpiece. The adjustable bamboo tube 6 is precisely aligned with the surface of the workpiece and the dead corners. The high-pressure airflow thoroughly removes the residual sand from the surface of the workpiece. The blowing effect is stable and reliable, without the difference or omission of manual operation. Step 4: The blown sand dust falls into the sand bin 9 below the blowing area for collection, realizing the recycling of sand. This process adopts a conveyor belt structure with gaps. The sand dust falls smoothly through the gaps in the conveyor belt to the sand bin 9 for centralized recycling. There is no sand scattering or dust diffusion, realizing the recycling of sand. Step 5: The cleaned workpiece passes through the second baffle 4 along the conveyor line and is sent out of the cleaning area. The second baffle 4 continuously blocks the airflow and dust in the cleaning area. While the workpiece is discharged smoothly, it maintains the air-proof and dust-proof effect of the semi-enclosed area to ensure that the dust does not spread in an unorganized manner. Step Six: Employees directly collect the workpieces sent out of the blowing area without additional manual blowing, completely replacing manual hand-held air gun blowing operations, eliminating high-intensity labor for employees, and the output efficiency is completely synchronized with the sandblasting machine's cycle time, improving production efficiency.

[0032] When in use, the automatic dust removal device at the outlet of the sandblasting machine is mounted on a stable frame 1 above the sandblasting machine's discharge conveyor line. A semi-enclosed dust removal area is formed by the baffle 2, the first baffle curtain 3, and the second baffle curtain 4, effectively preventing airflow and dust spillage. After the sandblasting machine is started, the conveyor line starts simultaneously. The sandblasted workpiece moves along the conveyor line, smoothly passing through the first baffle curtain 3 and entering the dust removal area. The air inlet pipe 8 delivers high-pressure air from the workshop to the dust removal pipe 5. The dust removal pipe 5 evenly distributes the high-pressure airflow to eight sets of bamboo-joint pipes 6. The rotatable and angle-adjustable bamboo-joint pipes 6 drive the bottom flat-mouth nozzles 7 to spray a wide, evenly distributed airflow downwards. A uniform high-pressure airflow forms a full-coverage blowing surface within the blowing area. As the workpiece passes through the blowing area at a uniform speed, the high-pressure airflow thoroughly blows off the sand and dust adhering to its surface. The blown-off sand and dust fall through a gapped conveyor belt into the sand hopper 9 directly below the blowing area for centralized collection, realizing the recycling of sand. After the workpiece has completed comprehensive dust removal, it passes through the second baffle 4 along the conveyor line and is sent out of the blowing area. Employees can directly collect the workpiece. The entire process does not require manual hand-held air gun assistance. All components work together to achieve automated, continuous, and dead-angle-free dust removal operation at the sandblasting machine's outlet.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic dust removal device for the discharge port of a sandblasting machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) is equipped with a baffle (2), a first baffle (3) and a second baffle (4), which together form a semi-enclosed blowing area. The mounting bracket (1) is equipped with a purge pipe (5), and a plurality of bamboo tubes (6) are installed on the purge pipe (5). A nozzle (7) is installed at the end of the bamboo tube (6) away from the purge pipe (5).

2. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 1, characterized in that: The mounting bracket (1) is erected above the conveyor line. The first curtain (3) faces upstream of the conveyor line, and the second curtain (4) faces downstream of the conveyor line. Both the first curtain (3) and the second curtain (4) are made of flexible material and hang downwards to block airflow and dust spillage.

3. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 2, characterized in that: The baffle (2) is mounted on the conveyor line in a U-shape. The first baffle curtain (3) and the second baffle curtain (4) are located at the openings on both sides of the baffle (2), together forming a semi-enclosed purging area.

4. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 3, characterized in that: The purge pipe (5) passes through the baffle (2), and one end of the purge pipe (5) is connected to the air inlet pipe (8), which is connected to an external air supply device.

5. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 4, characterized in that: The purge pipe (5) is located between the first curtain (3) and the second curtain (4), and the purge pipe (5), the first curtain (3) and the second curtain (4) are parallel to each other.

6. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 5, characterized in that: The bamboo joint tube (6) is rotatably connected to the blowing tube (5), the bamboo joint tube (6) extends vertically downward, and the bamboo joint tube (6) can adjust the blowing angle.

7. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 6, characterized in that: The nozzle (7) is detachably installed at the bottom of the bamboo tube (6). The nozzle (7) is a flat nozzle, forming a wide and uniform blowing surface.

8. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 1, characterized in that: It also includes a sand bin (9), which is located below the purging area and is used to collect the sand material that falls during purging.

9. The automatic dust removal device for the discharge port of a sandblasting machine according to claim 8, characterized in that: The sand bin (9) is detachably installed at the bottom of the conveyor line. The workpieces on the conveyor line pass over the sand bin (9), and the blown sand falls into the sand bin (9) for recycling.

10. An automatic dust removal process for the discharge port of a sandblasting machine, characterized in that: The automatic dust removal device for the discharge port of a sandblasting machine according to any one of claims 1-9 further includes the following steps: Step 1: The sandblasting machine is started, and the conveyor line is started simultaneously. The sandblasted workpiece is conveyed through the conveyor line, passes through the first curtain (3) and enters the blowing area formed by the baffle (2), the first curtain (3) and the second curtain (4); Step 2: The purge pipe (5) supplies air synchronously with the external air supply device through the air inlet pipe (8), and the high-pressure airflow is sprayed downward from the nozzle (7) through the bamboo joint pipe (6) to form a continuous purge surface in the purge area; Step 3: The workpiece passes through the blowing area at a constant speed on the conveyor line, and the high-pressure airflow of the nozzle (7) blows off all the sand and dust on the surface of the workpiece. Step 4: The blown sand dust falls into the sand bin (9) below the blowing area for collection, realizing the recycling of sand; Step 5: The cleaned workpiece passes through the second baffle (4) along the conveyor line and is sent out of the cleaning area; Step Six: Employees directly collect the workpieces sent out of the blowing area without the need for additional manual blowing.

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