Anti-blocking continuous shot feeder
By combining a pulsed airflow anti-clogging structure with a rotating screen, the problem of shot blockage in shot blasting machines is solved, achieving stable and uniform delivery of shot and ensuring continuous and efficient operation of the shot blasting machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU LEIOU PRECISION MASCH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-14
AI Technical Summary
The shot supply system of traditional shot blasting machines is prone to blockage due to shot accumulation, moisture, or high viscosity, which affects the feeding effect.
It adopts a dual anti-clogging mechanism that combines a pulse airflow anti-clogging structure (second pulse control valve + annular jet nozzle) with a rotating screen and a mixer. It prevents the pellets from clogging through pulse feeding and rotating screening, and cleans the adhering substances on the inner wall of the machine by scraping.
It achieves continuous and uniform feeding of shot, improves feeding stability, prevents clumping, and ensures continuous and efficient operation of the shot blasting machine.
Smart Images
Figure CN224488780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting machine technology, specifically to a continuous shot blasting machine with anti-clogging technology. Background Technology
[0002] Shot blasting machines are widely used for surface cleaning and strengthening in industries such as casting, forging, and steel structures. Traditional shot blasting machines typically use gravity feeding or spiral conveying systems. However, in actual operation, shot materials (such as steel shot, cast steel sand, etc.) are prone to blockage of the shot supply pipeline due to moisture, impurities, or uneven accumulation, which affects shot blasting efficiency and may even cause equipment shutdown for cleaning, increasing maintenance costs.
[0003] A shot blasting machine automatic dual-control abrasive feed valve, disclosed in CN218194631U, includes a shot feed valve body. A first fixed block is fixedly connected inside the shot feed valve body, and a ball is disposed within the first fixed block. A drive motor is fixedly connected to the surface of the shot feed valve body. When the feed rate of the shot feed valve body needs to be adjusted via the drive motor, the motor is activated to rotate a rotating rod. The rotating rod drives a first gear to mesh with a second gear, which in turn drives the fixed rod to rotate. The ball can then be rotated for adjustment. Because the surface of the ball has a through hole, it can be unfolded when the through hole is parallel to the first fixed block, allowing the shot to flow out. This facilitates adjustment and prevents manual adjustment by operators, which could lead to inaccuracies and operational inconvenience.
[0004] However, the device does not have a structure to prevent blockage of the material conveying channel. Traditional shot blasting machines generally use gravity feeding, which is prone to poor conveying due to the accumulation of shot. Especially when dealing with wet or highly viscous shot, material interruption or blockage often occurs, which will affect the feeding effect of the shot blasting machine.
[0005] To address the aforementioned issues, we have implemented an innovative design based on the existing anti-clogging continuous shot blasting machine structure. Utility Model Content
[0006] The purpose of this invention is to provide a continuous shot blasting machine with anti-clogging technology, in order to solve the problem mentioned in the background art that traditional shot blasting machines generally use gravity feeding, which is prone to poor conveying due to the accumulation of shot, especially when dealing with wet or highly viscous shot, often resulting in material interruption or blockage, thus affecting the feeding effect of the shot blasting machine.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a continuous shot blasting machine with anti-clogging features, comprising a trolley and a machine body. The machine body is fixedly installed on the upper end of the trolley, and a feed inlet is fixedly installed on the upper end of the machine body, while a discharge outlet is fixedly installed on the bottom of the machine body. It also includes: a feeding assembly consisting of a first pulse control valve, a first conveying pipe, and a nozzle connector, used to control the initial conveying of shot; an anti-clogging assembly comprising a second pulse control valve, a second conveying pipe, and an annular jet nozzle, used to prevent pipe blockage through intermittent airflow injection; a screening assembly comprising a drive motor, a rotating screen, and a stirrer, used for screening and uniformly conveying shot; a cleaning assembly with a scraper and a discharge port, used to remove accumulated material from the screen and discharge impurities; and a sealing assembly using threaded caps to seal critical connection points.
[0008] Preferably, the nozzle connector is connected to the discharge port through a first conveying pipe, and a first pulse control valve is installed on the outside of the first conveying pipe.
[0009] By adopting the above technical solution, the conveyed pellets can be pulsed and fed through the first pulse control valve.
[0010] Preferably, the two ends of the second conveying pipe are connected to the machine body and the first conveying pipe respectively, and an annular air nozzle is fixedly connected to the outside of the second conveying pipe.
[0011] By adopting the above technical solution, the annular jet nozzle can create a spiral airflow at a jet angle of 20-35°, thereby effectively removing material deposits from the pipe wall.
[0012] Preferably, the drive motor is fixedly mounted on the upper part of the machine body, and the output end of the drive motor passes through the inner side of the machine body, and a rotating screen is fixedly connected to the output end of the drive motor.
[0013] By adopting the above technical solution, large-particle pellets can be screened using a rotating screen.
[0014] Preferably, the output end of the drive motor is fixedly connected to a stirrer, and multiple sets of stirrers are provided.
[0015] By adopting the above technical solution, the agitator setting can prevent the accumulation of pellets and ensure uniform feeding.
[0016] Preferably, a scraper is fixedly connected to the output end of the drive motor, and the scraper is made of elastic rubber material, with its working surface maintaining a gap of 0.5-1mm with the inner surface of the machine body.
[0017] By adopting the above technical solution, the particulate matter adhering to the inner wall of the machine can be scraped and cleaned by the scraper.
[0018] Preferably, the inner side of the machine body is provided with a discharge port, and the inner side of the discharge port is threaded with a threaded cap.
[0019] By adopting the above technical solution, large pellets can be discharged through the discharge port.
[0020] Compared with the prior art, the beneficial effect of this utility model is that the anti-clogging continuous shot blasting machine is equipped with:
[0021] 1. Anti-clogging structure: This structure adopts a dual anti-clogging mechanism that combines a pulse airflow anti-clogging structure (second pulse control valve + annular jet nozzle) with a rotating screen and agitator, effectively solving the problem of poor performance of traditional single anti-clogging methods;
[0022] 2. Stable feeding structure: This structure ensures continuous and uniform feeding of pellets through the linkage design of rotating screen and agitator. The setting of multiple agitators effectively prevents pellet clumping, improving feeding stability by 45%. The coordinated work of the first pulse control valve and the second pulse control valve achieves precise control of the conveying pressure. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0024] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;
[0025] Figure 3 This is a schematic diagram of the side sectional view of the body of this utility model;
[0026] Figure 4 This is a schematic diagram of the bottom view of the body structure of this utility model;
[0027] Figure 5 This is a three-dimensional structural diagram of the stirrer of this utility model.
[0028] In the diagram: 1. Trolley; 2. Machine body; 3. Feed inlet; 4. Discharge outlet; 5. First pulse control valve; 6. First conveying pipe; 7. Nozzle connector; 8. Second pulse control valve; 9. Second conveying pipe; 10. Annular jet nozzle; 11. Drive motor; 12. Rotary screen; 13. Agitator; 14. Scraper; 15. Discharge port; 16. Threaded cap. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-5 This utility model provides a technical solution: a continuous shot blasting machine with anti-clogging capability, comprising:
[0031] Example 1: As Figures 1-2 The present invention provides a technical solution: a continuous shot blasting machine with anti-clogging features, comprising: a trolley 1 and a machine body 2, with the machine body 2 fixedly mounted on the upper end of the trolley 1, a feed inlet 3 fixedly mounted on the upper end of the machine body 2, and a discharge outlet 4 fixedly mounted on the bottom of the machine body 2; further comprising: a feeding assembly consisting of a first pulse control valve 5, a first conveying pipe 6, and a nozzle connector 7, used to control the initial conveying of shot; an anti-clogging assembly consisting of a second pulse control valve 8, a second conveying pipe 9, and an annular jet nozzle 10, used to prevent pipe blockage through intermittent airflow injection; a screening assembly consisting of a drive motor 11, a rotating screen 12, and a stirrer 13, used for screening and uniformly conveying shot; a cleaning assembly consisting of a scraper 14 and a discharge port 15, used to remove accumulated material from the screen and discharge impurities; and a sealing assembly using a threaded cap 16 to seal key connection points.
[0032] The nozzle connector 7 is connected to the outlet 4 through the first conveying pipe 6, and a first pulse control valve 5 is installed on the outside of the first conveying pipe 6; the two ends of the second conveying pipe 9 are connected to the machine body 2 and the first conveying pipe 6 respectively, and an annular jet nozzle 10 is fixedly connected to the outside of the second conveying pipe 9.
[0033] The pellets in this structure enter the machine body 2 through the feed port 3 and enter the first conveying pipe 6 through the discharge port 4. The first pulse control valve 5 opens and closes at a set frequency (with an external controller) to form a pulse feeding, thereby avoiding the accumulation of pipe pressure caused by continuous feeding. When conveying pellets, qualified pellets are conveyed through the first conveying pipe 6. The first pulse control valve 5 operates at a frequency of 1-3Hz. When an abnormal conveying pressure is detected, the second pulse control valve 8 is activated, and the annular jet nozzle 10 sprays at a pressure of 0.5-2MPa. The jet angle (20-35°) forms a spiral airflow, which effectively removes the accumulated material on the pipe wall and performs radial airflow flushing to remove the attachments on the pipe wall of the first conveying pipe 6 and axial airflow to promote the flow of pellets, thereby avoiding blockage on the inside of the first conveying pipe 6.
[0034] Example 2: Figures 1-5The present invention provides a technical solution: a continuous shot blasting machine with anti-clogging, comprising: a drive motor 11 fixedly installed on the upper end of the machine body 2, and the output end of the drive motor 11 penetrating through the inner side of the machine body 2; a rotating screen 12 fixedly connected to the output end of the drive motor 11; an agitator 13 fixedly connected to the output end of the drive motor 11, and multiple agitators 13 are provided; a scraper 14 fixedly connected to the output end of the drive motor 11, and the scraper 14 is made of elastic rubber, with its working surface maintaining a gap of 0.5-1mm with the inner surface of the machine body 2; a discharge port 15 is provided on the inner side of the machine body 2, and a threaded cap 16 is threadedly connected to the inner side of the discharge port 15;
[0035] After the shot enters the machine body 2 through the feed inlet 3, it first reaches the area of the rotating screen 12. The drive motor 11 drives the rotating screen 12 to rotate at a speed of 15-30 rpm, and at the same time, the agitator 13 rotates. This dual rotation motion realizes the initial screening and uniform dispersion of the shot. Qualified shot passes through the screen 12, while large particles of impurities are intercepted. The anti-clogging conveying stage keeps the conveying smooth. When the rotating screen 12 is running, the elastic scraper 14 continuously scrapes off the accumulated material on the inner wall surface of the machine body 2. The threaded cap 16 ensures the sealing. When it is necessary to clean large particles of shot, the large particles of shot can be discharged through the discharge port 15 by rotating the threaded cap 16. This device organically combines mechanical conveying, airflow anti-clogging, and intelligent control. Through the synergistic effect of multiple components, it realizes a truly continuous, stable, and efficient shot blasting operation. In particular, the cooperation between the pulse airflow anti-clogging system and the rotating screen fundamentally solves the technical problem of easy clogging in traditional equipment.
[0036] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A continuous shot blasting machine with anti-clogging function, comprising a trolley (1) and a machine body (2), wherein the machine body (2) is fixedly installed on the upper end of the trolley (1), a feed inlet (3) is fixedly installed on the upper end of the machine body (2), and a discharge outlet (4) is fixedly installed on the bottom of the machine body (2); characterized in that, Also includes: Feeding assembly: Composed of a first pulse control valve (5), a first conveying pipe (6), and a nozzle connector (7), used to control the initial conveying of the pellets; Anti-clogging components include a second pulse control valve (8), a second conveying pipe (9), and an annular jet nozzle (10), which prevent pipe blockage by intermittent airflow injection; Screening assembly: includes a drive motor (11), a rotary screen (12) and a stirrer (13) for screening and uniformly conveying the pellets; Cleaning components: Equipped with a scraper (14) and a discharge port (15) for removing accumulated material from the screen and discharging impurities; Sealing assembly: A threaded cap (16) is used to seal critical connection points.
2. The anti-clogging continuous shot blasting machine according to claim 1, characterized in that: The nozzle connector (7) is connected to the outlet (4) through the first conveying pipe (6), and a first pulse control valve (5) is installed on the outside of the first conveying pipe (6).
3. The anti-clogging continuous shot blasting machine according to claim 1, characterized in that: The two ends of the second conveying pipe (9) are connected to the machine body (2) and the first conveying pipe (6) respectively, and an annular jet nozzle (10) is fixedly connected to the outside of the second conveying pipe (9).
4. The anti-clogging continuous shot blasting machine according to claim 1, characterized in that: The drive motor (11) is fixedly installed on the upper end of the machine body (2), and the output end of the drive motor (11) passes through the inner side of the machine body (2). A rotating screen (12) is fixedly connected to the output end of the drive motor (11).
5. A continuous shot blasting machine with anti-clogging feature according to claim 4, characterized in that: The output end of the drive motor (11) is fixedly connected to a stirrer (13), and multiple sets of stirrers (13) are provided.
6. The anti-clogging continuous shot blasting machine according to claim 5, characterized in that: The output end of the drive motor (11) is fixedly connected to a scraper (14), and the scraper (14) is made of elastic rubber material, with its working surface maintaining a gap of 0.5-1mm with the inner surface of the machine body (2).
7. A continuous shot blasting machine with anti-clogging capability according to claim 6, characterized in that: The machine body (2) has a discharge port (15) on its inner side, and a threaded cap (16) is threadedly connected to the inner side of the discharge port (15).