A shot blasting machine impurity removing device

Abstract

The utility model relates to shot blasting impurity removal technical field especially a shot blasting machine impurity removal device, including elevator, the feed inlet of elevator lower part communicates the shot blasting discharge port of shot blasting machine, the discharge port of elevator upper part communicates the impurity removal box, rotatable support shaft is connected in the impurity removal box, a plurality of obliquely upwards throw -out plate is installed to the support shaft circumference side, the impurity removal box circumference side is connected and is installed negative pressure tank, the shot inlet of negative pressure tank is opposite the shot -outlet of throw -out plate, negative pressure tank communicates negative pressure dust collection head, the lower part of negative pressure tank is equipped with the shot blasting outlet that can communicate shot blasting machine shot -in mouth. The device rotates throw -out plate by support shaft, not only realizes the directional projection of pellet material, still carries out acceleration to pellet material through centrifugal effect, makes it more efficient into negative pressure tank and enhances the impact separation effect.

Description

Technical Field

[0001] This utility model relates to the field of shot peening and impurity removal technology, and in particular to a shot peening machine impurity removal device. Background Technology

[0002] Shot peening machines are common surface treatment equipment that use high-speed shot to impact the surface of a workpiece, achieving the purpose of removing oxide scale, burrs, or surface strengthening. During shot peening, the shot needs to be recycled. After multiple cycles, the shot often becomes mixed with impurities such as oxide scale, metal fragments, and dust detached from the workpiece. If these impurities are not removed in time, the following problems will occur: shot containing impurities will reduce the peening effect, resulting in uneven surface treatment and potentially scratching the workpiece surface; impurities will also increase wear on internal components such as pipes, nozzles, and impellers of the shot peening machine, shortening the equipment's lifespan.

[0003] In the existing technology, although some shot peening equipment is equipped with a simple screening device, it can often only roughly remove some large impurities, and the removal effect on small impurities is not good, resulting in insufficient purity of the shot and the above-mentioned problems still exist. Utility Model Content

[0004] The purpose of this invention is to solve the problem that some existing shot peening equipment, although equipped with simple screening devices, can only roughly remove some large impurities, and the removal effect on small impurities is not good, resulting in insufficient purity of shot. Therefore, this invention proposes a shot peening machine impurity removal device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A shot peening machine impurity removal device includes an elevator. The feed inlet at the lower part of the elevator is connected to the shot peening discharge port of the shot peening machine. The discharge port at the upper part of the elevator is connected to an impurity removal box. A rotatable support shaft is rotatably connected inside the impurity removal box. Several upwardly inclined shot peening plates are installed around the support shaft. A negative pressure box is connected to the periphery of the impurity removal box. The injection inlet of the negative pressure box is directly opposite the shot peening outlet of the shot peening plates. The negative pressure box is connected to a negative pressure dust suction head. A shot peening outlet is provided at the lower part of the negative pressure box, which can be connected to the shot peening machine's shot inlet.

[0007] The shot blasting plate is an arc-shaped plate with a radial cross-section of "C". The arc-shaped plate has a first end, a second end, and an open side. The second end is higher than the first end. The first end is fixedly connected to the support shaft. The open side is tangentially positioned in the direction of rotation of the support shaft.

[0008] The elevator is a screw elevator.

[0009] The spiral elevator includes an outer cylinder, a rotating shaft installed inside the outer cylinder, a spiral plate installed on the rotating shaft, and a rotary motor that is drivenly connected to the rotating shaft. The rotating shaft is drivenly connected to the support shaft.

[0010] A striker is installed inside the negative pressure chamber, directly facing the direction of the shot blasting plate.

[0011] An inclined slide is installed inside the negative pressure box below the impact rod. An inclined filter screen is provided inside the negative pressure box below the slide, with the higher end of the filter screen opposite the lower end of the slide. An impurity outlet is provided at the lower end of the negative pressure box.

[0012] This invention proposes a shot peening machine impurity removal device, which has the following advantages: The device utilizes a support shaft to drive the shot peening plate to rotate, achieving not only directional shot projection but also accelerating the shot through centrifugal force, allowing it to enter the negative pressure chamber more efficiently and enhancing the impact separation effect. The synergistic effect of the negative pressure chamber and the negative pressure dust extraction head can promptly remove impurities, ensuring the purity of the shot. The separated shot is then returned to the shot peening machine through the shot peening outlet, ensuring stable shot peening processing quality, while reducing equipment wear and clogging, lowering maintenance costs, and extending service life. Attached Figure Description

[0013] Figure 1 This is a partial front view sectional structural diagram of the present invention;

[0014] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the shot blasting plate structure of this utility model.

[0016] In the diagram: 1. Shot blasting machine; 2. Shot blasting outlet; 3. Impurity outlet; 4. Impurity removal box; 5. Shot blasting plate; 6. Injection inlet; 7. Negative pressure box; 8. Impact bar; 9. Negative pressure dust suction head; 10. Slide plate; 11. Discharge port; 12. Spiral plate; 13. Rotating shaft; 14. Outer cylinder; 15. Feed port; 16. Filter screen; 17. Elevator; 18. Support shaft; 51. First end; 52. Second end; 53. Opening side. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figures 1-3A shot peening machine impurity removal device includes an elevator 17. The feed inlet 15 at the lower part of the elevator 17 is connected to the shot peening discharge port of the shot peening machine 1. The discharge port 11 at the upper part of the elevator 17 is connected to the impurity removal box 4. A rotatable support shaft 18 is rotatably connected inside the impurity removal box 4. Several upwardly inclined shot peening plates 5 are installed around the support shaft 18. A negative pressure box 7 is connected to the impurity removal box 4. The injection inlet 6 of the negative pressure box 7 is directly opposite the shot peening outlet of the shot peening plate 5. The negative pressure box 7 is connected to a negative pressure dust suction head 9. The lower part of the negative pressure box 7 is provided with a shot peening outlet 2 that can be connected to the shot inlet of the shot peening machine 1.

[0019] In operation, the shot from the shot blasting machine 1 enters the feed inlet 15 of the elevator 17 through the shot blasting discharge port. Lifted by the elevator 17, the shot is sent to the discharge port 11 and enters the impurity removal box 4. Inside the impurity removal box 4, the support shaft 18 rotates under drive, causing several upward-sloping shot blasting plates 5 around the support shaft 18 to rotate accordingly. The shot near the first end of the shot blasting plate 5 enters the shot blasting plate 5 and is propelled out by the shot blasting plate 5 under the drive of the support shaft 18. The propelled shot enters the negative pressure box 7 through the injection port 6. Inside the negative pressure box 7, the negative pressure airflow generated by the negative pressure suction head 9 sucks in the fine impurities entrained in the shot, thus separating the shot from the impurities. The separated clean shot continues to fall and flows back to the shot inlet of the shot blasting machine 1 through the shot blasting outlet 2 at the bottom of the negative pressure box 7, completing the recycling process.

[0020] The shot blasting plate 5 is rotated by the support shaft 18, which effectively propels the shot and accelerates it into the negative pressure box 7, improving the impact separation effect. The cooperation between the negative pressure box 7 and the negative pressure dust suction head 9 can separate and remove impurities in time during the shot blasting process, preventing impurities from flowing back to the shot blasting machine 1, thereby improving the purity of the shot. The separated shot flows back to the shot blasting machine 1 through the shot blasting outlet 2, which not only improves the shot blasting quality but also reduces equipment wear and blockage caused by impurities, extending the overall equipment life and reducing maintenance costs.

[0021] The shot blasting plate 5 is an arc-shaped plate with a radial cross section of "C". The arc-shaped plate has a first end 51, a second end 52, and an open side 53. The second end 52 is higher than the first end 51. The first end 51 is fixedly connected to the support shaft 18. The open side 53 is tangentially set in the direction of rotation of the support shaft 18. The elevator 17 is a screw elevator.

[0022] The shot blasting plate 5 is designed as an arc structure with a radial cross section of "C". The first end 51 is fixed to the support shaft 18, the second end 52 is higher than the first end 51, and the opening side 53 is tangentially arranged so that the shot can be effectively guided and gradually accelerated during rotation, and finally smoothly blasted at the second end 52, thereby improving the orientation and speed of the shot entering the negative pressure box 7.

[0023] The spiral elevator includes an outer cylinder 14, a rotating shaft 13 installed inside the outer cylinder 14, a spiral plate 12 installed on the rotating shaft 13, and a rotary motor that is driven by the rotating shaft 13. The rotating shaft 13 is driven by the support shaft 18. A striker 8 is installed in the negative pressure box 7 facing the shot blasting plate 5.

[0024] The support shaft 18 inside the impurity removal box 4 is connected to the rotating shaft 13. When the support shaft 18 rotates, it drives the shot blasting plates 5 on the periphery to rotate synchronously. The shot enters from the position near the first end 51 and is gradually lifted and guided during rotation, finally being ejected from the second end 52 through the opening side 53. The ejected shot enters the negative pressure box 7, where the impact bar 8 installed in the negative pressure box 7, facing the direction of ejection, impacts the shot, further separating the shot from fine impurities. The negative pressure generated by the negative pressure suction head 9 sucks away the impurities. The separated shot falls to the shot blasting outlet 2 and flows back to the shot blasting machine 1 through the shot blasting outlet 2, realizing circulation. The impact bar 8 inside the negative pressure box 7 can collide with the shot after it is thrown in, using the difference in inertia to make the impurities easier to separate. Combined with the suction effect of the negative pressure suction head 9, the impurity removal effect is effectively improved.

[0025] Optionally, if a greater impact separation effect is desired, the rotational speed of the support shaft 18 can be increased by using an acceleration gearbox between the support shaft 18 and the rotating shaft 13.

[0026] An inclined slide plate 10 is installed inside the negative pressure box 7 below the impact rod 8. An inclined filter screen 16 is provided inside the negative pressure box 7 below the slide plate 10. The higher end of the filter screen 16 is opposite the lower end of the slide plate 10. An impurity outlet 3 is provided at the lower end of the filter screen 16 in the negative pressure box 7.

[0027] In one implementation, the shot from the shot peening machine 1 enters the feed inlet 15 of the screw conveyor 17 through the shot peening discharge port. Inside the outer cylinder 14, it is gradually conveyed upwards by the rotation of the rotating shaft 13 and the spiral plate 12, and then enters the impurity removal box 4 through the discharge port 11. The support shaft 18 is connected to the rotating shaft 13. When the support shaft 18 rotates, it drives the circumferential shot blasting plate 5 to rotate. The shot enters the C-shaped channel of the shot blasting plate 5 from the first end 51, and is gradually guided and accelerated through the opening side 53, finally being ejected from the second end 52. The ejected shot enters the box body through the injection port 6 of the negative pressure box 7. Inside the negative pressure box 7, it first collides with the impact bar 8 facing the ejection direction, using inertia to separate some impurities. Subsequently, the shot falls onto the slide plate 10 below the impact bar 8 and, under the inclined guidance of the slide plate 10, converges at the high end of the filter screen 16. As the shot continues to fall, small shot particles pass through the filter screen 16 and are discharged from the shot blasting outlet 2 at the bottom of the negative pressure box 7, flowing back into the shot blasting machine 1. Larger particles with a diameter greater than the shot are blocked by the filter screen 16, slide down the inclined direction of the filter screen 16, and are discharged from the impurity outlet 3. Fine particles and dust are sucked into the vacuum cleaner by the suction of the negative pressure suction head 9, thus achieving multi-stage separation of impurities and shot. The filter screen 16 not only allows qualified shot to pass smoothly and flow back into the shot blasting machine 1 from the shot blasting outlet 2, but also intercepts larger particles with a diameter greater than the shot and concentrates them for discharge from the impurity outlet 3, reducing backflow contamination. Combined with the suction effect of the negative pressure suction head 9, fine particles and dust can be removed simultaneously, achieving multi-stage separation of large particles, fine impurities, and dust. Overall, this structure improves the purity of the shot returning from the shot blasting machine 1.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shot peening machine impurity removal device, comprising an elevator (17), wherein the feed inlet (15) at the lower part of the elevator (17) is connected to the shot peening discharge outlet of the shot peening machine (1), and the discharge outlet (11) at the upper part of the elevator (17) is connected to an impurity removal box (4), characterized in that, The impurity removal box (4) is rotatably connected to a rotatable support shaft (18). Several upwardly inclined shot blasting plates (5) are installed around the support shaft (18). A negative pressure box (7) is connected to the impurity removal box (4). The injection inlet (6) of the negative pressure box (7) is directly opposite the shot blasting outlet of the shot blasting plate (5). The negative pressure box (7) is connected to a negative pressure dust suction head (9). The lower part of the negative pressure box (7) is provided with a shot blasting outlet (2) that can be connected to the shot inlet of the shot blasting machine (1).

2. The shot peening machine impurity removal device according to claim 1, characterized in that, The shot blasting plate (5) is an arc plate with a radial cross section of "C". The arc plate has a first end (51), a second end (52), and an open side (53). The second end (52) is higher than the first end (51). The first end (51) is fixedly connected to the support shaft (18). The open side (53) is tangentially set in the rotation direction of the support shaft (18).

3. A shot peening machine impurity removal device according to claim 1 or 2, characterized in that, The elevator (17) is a screw elevator.

4. The shot peening machine impurity removal device according to claim 3, characterized in that, The spiral elevator includes an outer cylinder (14), a rotating shaft (13) installed inside the outer cylinder (14), a spiral plate (12) installed on the rotating shaft (13), and a rotating motor that is drivenly connected to the rotating shaft (13). The rotating shaft (13) is drivenly connected to the support shaft (18).

5. A shot peening machine impurity removal device according to claim 1, 2, or 4, characterized in that, Inside the negative pressure box (7), a striking rod (8) is installed directly opposite the shot blasting plate (5) in the direction of shot blasting.

6. The shot peening machine impurity removal device according to claim 5, characterized in that, An inclined slide (10) is installed inside the negative pressure box (7) below the impact rod (8). An inclined filter screen (16) is provided inside the negative pressure box (7) below the slide (10). The higher end of the filter screen (16) is opposite the lower end of the slide (10). An impurity outlet (3) is provided at the lower end of the filter screen (16) of the negative pressure box (7).

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