Sand flow stabilizing feeding mechanism of a vibrating sand blasting machine

Abstract

The utility model provides a kind of sand blasting machine sand material steady flow feeding mechanism of vibration type, including base, base is fixedly installed mixing drum, motor is fixedly installed on the mixing drum, motor output shaft penetrates the mixing drum fixed connection stirring mechanism, motor side fixedly installs feed hopper, mixing drum side fixedly installs sand pump, sand pump input and output end are respectively fixed connection sand extraction pipe and sand conveying pipe, sand extraction pipe one end penetrates the mixing drum, sand pump side has bellow, bellow top is provided with installation pipe and internal fan, the both sides of bellow are fixedly connected with several branch air tubes that communicate with the inside of bellow, several branch air tubes are fixedly connected with sand extraction pipe and sand conveying pipe and communicate with inside, sand material is stirred by mixing drum, sand extraction is carried out after sand pump starts, airflow is generated after fan starts, airflow enters sand extraction pipe and sand conveying pipe inside through two sides branch air tubes to prevent sand material from being accumulated and blocked inside to form arch bridge phenomenon.

Description

Technical Field

[0001] This utility model relates to a feeding mechanism, and more particularly to a sand material steady-flow feeding mechanism for a vibratory sandblasting machine. Background Technology

[0002] A sandblasting machine is a device that uses compressed air to propel abrasive particles at high speed onto the surface of a workpiece, thereby achieving rust removal, deburring, surface cleaning, and strengthening treatment. In existing sandblasting equipment, to ensure sandblasting effectiveness, the abrasive material typically needs to be stably and continuously fed into the blasting pipe via a feeding mechanism. However, in practical applications, due to irregular particle shapes, fluctuating moisture content, or differences in particle size distribution, the feeding mechanism often experiences problems such as blockage, bridging, and momentary material interruptions, leading to uneven sandblasting and severely affecting processing efficiency and surface quality. Therefore, a new type of vibratory sandblasting machine with a stable abrasive flow feeding mechanism is urgently needed to solve these technical problems. Utility Model Content

[0003] This invention aims to address the problem in existing sandblasting equipment where, to ensure sandblasting effectiveness, the sand material typically needs to be stably and continuously conveyed to the blasting pipe via a feeding mechanism. However, in practical applications, due to irregular particle shapes, fluctuating moisture content, or differences in particle size distribution, the feeding mechanism often experiences problems such as blockage, bridging, and momentary material interruption.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A vibratory sandblasting machine sand material steady flow feeding mechanism includes a base, a mixing drum fixedly installed on the base, a motor fixedly installed on the mixing drum, the output shaft of the motor passing through the mixing drum and fixedly connected to a mixing mechanism, a feed hopper fixedly installed on one side of the motor, a sand pump fixedly installed on one side of the mixing drum, a sand pump input end and a sand pump output end fixedly connected to a sand suction pipe and a sand conveying pipe respectively, one end of the sand suction pipe passing through the mixing drum, a wind box fixedly installed on one side of the sand pump, an installation pipe fixedly installed on the top of the wind box, a fan fixedly installed inside the installation pipe, and several branch air pipes communicating with the interior of the wind box fixedly connected to both sides of the wind box, the several branch air pipes being fixedly connected to the sand suction pipe and the sand conveying pipe and communicating with the interior.

[0005] Furthermore, several support legs are fixedly installed at the bottom of the base.

[0006] Furthermore, a first filter plate and a second filter plate are fixedly installed on the inner wall of the air box from top to bottom, and the mesh size of the second filter plate is smaller than that of the first filter plate.

[0007] Furthermore, the stirring mechanism includes a rotating shaft, on which several blades are fixedly sleeved.

[0008] Furthermore, a feeding box is fixedly installed on one side of the sand pump, and one end of the sand conveying pipe passes through the top of the feeding box. Several support rods are fixedly installed at the four corner edges inside the feeding box. Symmetrical mounting frames are fixedly installed on the top of the several support rods. Symmetrical rollers are rotatably installed between the symmetrical mounting frames. A conveyor belt is rotatably installed between the symmetrical rollers.

[0009] Furthermore, a discharge hopper that communicates with the inside of the feeding box is fixedly installed on one side of the feeding box. The bottom opening of the discharge hopper is flush with the surface of the conveyor belt, and the discharge hopper is connected to an external vibrating sandblasting machine.

[0010] Compared with existing technologies, the beneficial effects of this utility model include: When the fan is activated, it generates airflow, which is filtered through two filter plates to prevent dust and dirt from being introduced into the sand extraction and conveying pipes via branch air pipes, causing pollution. When the airflow enters the sand extraction and conveying pipes, it agitates the internal sand, increasing its fluidity. A certain pressure of airflow is injected into the sand input pipe, keeping the sand in a loose and flowing state during feeding, effectively preventing particle adhesion, clumping, and bridging. Simultaneously, the airflow scavenges the inner wall of the pipe, reducing sand residue and accumulation on the pipe wall, achieving continuous, stable, and uniform sand conveying. Attached Figure Description

[0011] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is an overall structural diagram of an embodiment of the present utility model; Figure 2 This is an enlarged view of part A of the overall structural diagram of an embodiment of this utility model; Figure 3 This is a cross-sectional view of the inside of the stirring cylinder in an embodiment of this utility model; Figure 4 This is a cross-sectional view of the inside of the feeding box in an embodiment of this utility model; Figure 5 This is a cross-sectional view of the inside of the bellows in an embodiment of this utility model.

[0012] The following are the labels in the diagram: 1. Base; 2. Support leg; 3. Mixing drum; 4. Motor; 5. Feed hopper; 6. Rotating shaft; 7. Blade; 8. Sand pump; 9. Sand extraction pipe; 10. Sand conveying pipe; 11. Feeding box; 12. Support rod; 13. Mounting frame; 14. Roller; 15. Conveyor belt; 16. Air box; 17. Mounting pipe; 18. Fan; 19. First filter plate; 20. Second filter plate; 21. Branch air pipe; 22. Discharge hopper. Detailed Implementation

[0013] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0014] Example 1: A base 1 is constructed with a mixing drum 3 fixedly mounted on it. A motor 4 is fixedly mounted on the mixing drum 3, and the output shaft of the motor 4 passes through the mixing drum 3 and is fixedly connected to a mixing mechanism. A feed hopper 5 is fixedly mounted on one side of the motor 4, and a sand pump 8 is fixedly mounted on one side of the mixing drum 3. The input and output ends of the sand pump 8 are respectively fixedly connected to a sand extraction pipe 9 and a sand conveying pipe 10. One end of the sand extraction pipe 9 passes through the mixing drum 3. A bellows 16 is fixedly mounted on one side of the sand pump 8, and an installation pipe 17 is fixedly mounted on the top of the bellows 16. A fan 18 is fixedly mounted inside the installation pipe 17. Several branch air pipes 21, which communicate with the interior of the bellows 16, are fixedly connected to both sides of the bellows 16. The branch air pipes 21 are fixedly connected to the sand extraction pipe 9 and the sand conveying pipe 10 and are connected to the interior of the bellows 16. The system is interconnected. The feed hopper 5 is used to pour the sand to be crushed and ground into the mixing drum 3. The motor 4, once started, drives the mixing mechanism inside the mixing drum 3 to crush the sand. The sand pump 8, once started, extracts the crushed sand from the mixing drum 3 through the sand extraction pipe 9 and discharges it through the sand conveying pipe 10, ultimately supplying it to an external vibratory sandblasting machine. The fan 18, once started, generates airflow, which is introduced into the sand extraction pipe 9 and the sand conveying pipe 10 through several branch air pipes 21. This injects a certain pressure of airflow into the sand input pipes, keeping the sand in a loose and flowing state during feeding, effectively preventing particle adhesion, clumping, and bridging. Simultaneously, the airflow purifies the inner wall of the pipes, reducing sand residue and accumulation on the pipe walls, achieving continuous, stable, and uniform sand conveying.

[0015] Furthermore, several support legs 2 are fixedly installed at the bottom of the base 1, and the support legs 2 are used to support and stabilize the entire device.

[0016] Furthermore, the inner wall of the air box 16 is fixedly installed with a first filter plate 19 and a second filter plate 20 from top to bottom. The mesh size of the second filter plate 20 is smaller than that of the first filter plate 19. After the fan 18 is started, the airflow generated will pass through the first filter plate 19 and the second filter plate 20 for double filtration, which can prevent the airflow from carrying external dust and dirt into the pipe and contaminating the sand.

[0017] Furthermore, the mixing mechanism includes a rotating shaft 6, on which several blades 7 are fixedly sleeved. After the fan 4 is started, the rotating shaft 6 rotates together with the output shaft of the motor 4, thereby driving the blades 7 to rotate together. When the sand enters the mixing drum 3 through the feed hopper 5, the blades 7 are used to crush and grind the sand to meet the requirements.

[0018] Furthermore, a feeding box 11 is fixedly installed on one side of the sand pump 8. One end of the sand conveying pipe 10 passes through the top of the feeding box 11. Several support rods 12 are fixedly installed at the four corners inside the feeding box 11. Symmetrical mounting frames 13 are fixedly installed on the top of the support rods 12. Symmetrical rollers 14 are rotatably installed between the symmetrical mounting frames 13. A conveyor belt 15 is rotatably installed between the symmetrical rollers 14. A discharge hopper 22, which communicates with the inside of the feeding box 11, is fixedly installed on one side of the feeding box 11 for discharging material. The bottom opening of the hopper 22 is flush with the surface of the conveyor belt 15. The discharge hopper 22 is connected to the external vibratory sandblasting machine. The conveyed sand will enter the feeding box 11 through one end of the sand conveying pipe 10, and then fall into one end of the surface of the conveyor belt 15 under the action of gravity. After the two rollers 14 are started, they will drive the conveyor belt 15 to move, so that the sand on one side of the conveyor belt 15 can be transported from one end to the other end. Then the sand will be output to the external vibratory sandblasting machine through the discharge hopper 22.

[0019] In use, the sand to be crushed and ground is poured into the mixing drum 3 through the feed hopper 5. The motor 4 is started to activate the mixing mechanism. Several blades 7 crush and grind the sand. Then, the sand pump 8 is started to extract the crushed sand from the mixing drum 3 through the sand extraction pipe 9 and discharge it through the sand conveying pipe 10 into the feeding box 11. The sand then falls into one end of the conveyor belt 15. After the two rollers 14 are powered on, the conveyor belt 15 is driven to run, conveying the sand from one side to the other until it is discharged from the discharge hopper 22 to the outside. In the active sandblasting machine, the fan 18 is activated, generating airflow. This airflow passes through the first filter plate 19 and the second filter plate 20, which intercept and filter out dust and dirt. The filtered airflow is then introduced into the sand extraction pipe 9 and the sand delivery pipe 10 through several branch air pipes 21. This injects a certain pressure of airflow into the sand input pipe, keeping the sand in a loose and flowing state during feeding, effectively preventing particle adhesion, clumping, and bridging. Simultaneously, the airflow purifies the inner wall of the pipe, reducing sand residue and accumulation, achieving continuous, stable, and uniform sand delivery.

[0020] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A vibratory sandblasting machine sand material steady flow feeding mechanism, comprising a base (1), a mixing drum (3) fixedly installed on the base (1), a motor (4) fixedly installed on the mixing drum (3), the output shaft of the motor (4) passing through the mixing drum (3) and fixedly connected to a mixing mechanism, a feed hopper (5) fixedly installed on one side of the motor (4), a sand pump (8) fixedly installed on one side of the mixing drum (3), the input end and output end of the sand pump (8) being fixedly connected to a sand extraction pipe (9) and a sand conveying pipe (10), respectively, one end of the sand extraction pipe (9) passing through the mixing drum (3), characterized in that, A blower box (16) is fixedly installed on one side of the sand pump (8). An installation pipe (17) is fixedly installed on the top of the blower box (16). A fan (18) is fixedly installed inside the installation pipe (17). Several branch air pipes (21) communicating with the inside of the blower box (16) are fixedly connected to both sides of the blower box (16). Several branch air pipes (21) are fixedly connected to the sand extraction pipe (9) and the sand conveying pipe (10) and communicate with the inside.

2. The vibratory sandblasting machine sand material stabilizing and feeding mechanism according to claim 1, characterized in that, The base (1) has several support legs (2) fixedly installed at its bottom.

3. The vibratory sandblasting machine sand material stabilizing and feeding mechanism according to claim 1, characterized in that, The inner wall of the air box (16) is fixedly installed with a first filter plate (19) and a second filter plate (20) from top to bottom. The mesh size of the second filter plate (20) is smaller than that of the first filter plate (19).

4. The vibratory sandblasting machine sand material stabilizing and feeding mechanism according to claim 1, characterized in that, The stirring mechanism includes a rotating shaft (6), and several blades (7) are fixedly sleeved on the shaft of the rotating shaft (6).

5. The sand material stabilizing and feeding mechanism for a vibratory sandblasting machine according to claim 1, characterized in that, A feeding box (11) is fixedly installed on one side of the sand pump (8). One end of the sand conveying pipe (10) passes through the top of the feeding box (11). Several support rods (12) are fixedly installed at the four corner edges inside the feeding box (11). Symmetrical mounting frames (13) are fixedly installed on the top of the several support rods (12). Symmetrical rollers (14) are rotatably installed between the symmetrical mounting frames (13). A conveyor belt (15) is rotatably installed between the symmetrical rollers (14).

6. The vibratory sandblasting machine sand material stabilizing and feeding mechanism according to claim 5, characterized in that, A discharge hopper (22) connected to the inside of the feeding box (11) is fixedly installed on one side of the feeding box (11). The bottom opening of the discharge hopper (22) is flush with the surface of the conveyor belt (15). The discharge hopper (22) is connected to an external vibrating sandblasting machine.

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