A sandblasting device

Abstract

The utility model relates to sand blasting device, including frame, is provided with sand blasting machine, first conveyer belt, the sand blasting area of conveying direction orientation sand blasting machine, second conveyer belt, and first conveyer belt same direction setting, first conveyer belt with second conveyer belt set in the same plane, wherein, work piece is placed on first conveyer belt and second conveyer belt simultaneously, first conveyer belt with second conveyer belt contact and support work piece jointly. The conveying direction of first conveyer belt and second conveyer belt is same and synchronism time, can jointly drive work piece to stretch into or away from sand blasting area. When first conveyer belt and second conveyer belt reverse rotation, the frictional force of two conveyer belts forms couple moment, drives work piece to rotate. Make large work piece can complete the processing of entire work piece through smaller sand blasting area, save sand blasting cost.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting equipment technology, and in particular to sandblasting devices. Background Technology

[0002] Sandblasting is used for surface treatment during the production of some forgings. Sandblasting can effectively remove defects on the surface of forgings, such as oxide scale, rust, and forging residues, to facilitate subsequent processes; it also improves the surface properties of forgings and extends their service life.

[0003] However, conventional sandblasting equipment has its blast nozzles arranged in a fixed angle and in one direction. Since both the inner cavity and outer surface of the ring forging need to be sandblasted, conventional sandblasting equipment cannot cover the entire surface of the ring forging. The ring forging needs to be flipped multiple times to complete the sandblasting process, resulting in low sandblasting efficiency and high cost. Large ring forgings are particularly difficult to flip and move, making sandblasting even more challenging.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a sandblasting device to simplify the sandblasting process of ring forgings.

[0006] The technical solution of this utility model is as follows: The sandblasting device includes: The frame is equipped with a sandblasting machine; The first conveyor belt is directed toward the sandblasting area of ​​the sandblasting machine; The second conveyor belt is arranged in the same direction as the first conveyor belt; the first conveyor belt and the second conveyor belt are arranged in the same plane; The workpiece is placed on both the first conveyor belt and the second conveyor belt; the first conveyor belt and the second conveyor belt contact and support the workpiece together.

[0007] A further technical solution is that the sandblasting machine is equipped with at least two sandblasting nozzles.

[0008] A further technical solution is that the workpiece is annular; along the first conveyor belt and the second conveyor belt, a portion of the annular segment of the workpiece enters the sandblasting area; along the radial direction of the workpiece, all the sandblasting nozzles are arranged circumferentially around the annular segment of the workpiece.

[0009] A further technical solution is that all the sandblasting nozzles are arranged on different planes; the sandblasting direction of the sandblasting nozzles is arranged radially along the workpiece.

[0010] A further technical solution is that the first conveyor belt includes a first power mechanism disposed on the frame and a plurality of first conveying rollers rotatably disposed on the frame; adjacent first conveying rollers are arranged in parallel and synchronously connected by a transmission belt; the first power mechanism is connected to the first conveying rollers through the transmission belt.

[0011] A further technical solution is that the second conveyor belt includes a second power mechanism disposed on the frame and a plurality of second conveyor rollers rotatably disposed on the frame; adjacent second conveyor rollers are arranged in parallel and synchronously connected by a transmission belt; the second power mechanism is connected to the second conveyor rollers through the transmission belt.

[0012] A further technical solution is to provide an external conveyor belt; the external conveyor belt is located at the end of the first conveyor belt and the second conveyor belt away from the sandblasting machine; the external conveyor belt is connected sequentially to the first conveyor belt and the second conveyor belt.

[0013] A further technical solution is that a limiting block is also provided on the frame; the limiting block and the workpiece are arranged on the same plane; the limiting block is arranged at one end of the first conveyor belt and the second conveyor belt near the sandblasting area; a gap is provided between the limiting block and the first conveyor belt, and between the limiting block and the second conveyor belt.

[0014] A further technical solution is that at least two limiting blocks are provided around the workpiece.

[0015] A further technical solution is to also provide a sand box; the opening of the sand box is located directly below the sandblasting area.

[0016] The beneficial technical effects of this utility model are as follows: (1) The sandblasting device of this utility model is provided with a first conveyor belt and a second conveyor belt, which together support the workpiece. When the first and second conveyor belts are in the same conveying direction and are synchronized, they can jointly drive the workpiece to extend into or away from the sandblasting area. When the first and second conveyor belts rotate in opposite directions, the frictional force applied by the two conveyor belts forms a torque, driving the workpiece to rotate. This allows the workpiece to partially extend into the sandblasting area, first performing local sandblasting, and then driving the workpiece to rotate, completing the processing of the entire workpiece through a smaller sandblasting area, thus saving sandblasting costs. Large workpieces can be processed by continuous rotation without local missed spraying or local over-processing. Moreover, there is no need to manually adjust the position of the workpiece during the entire sandblasting process, saving sandblasting time and improving sandblasting efficiency.

[0017] (2) Furthermore, multiple sandblasting nozzles are set around the ring segment of the annular workpiece. The workpiece rotates around its own axis, and all the inner and outer surfaces of the annular workpiece can be sandblasted without the need for manual flipping or adjustment of the workpiece position, thus ensuring sandblasting efficiency.

[0018] (3) Furthermore, at least two limiting blocks are also provided around the workpiece. The limiting blocks limit the distance the workpiece extends beyond the first conveyor belt and the second conveyor belt, and at the same time limit the workpiece to deviate to both sides, ensuring that the workpiece extends into the preset sandblasting area. Attached Figure Description

[0019] Figure 1 A top view of a sandblasting apparatus according to an embodiment of the present disclosure is shown.

[0020] Figure 2 A partial structural schematic diagram of the sandblasting area in a sandblasting apparatus according to an embodiment of the present disclosure is shown.

[0021] Figure 3 A schematic diagram of the mating structure between the limiting block and the workpiece in a sandblasting apparatus according to an embodiment of the present disclosure is shown.

[0022] Marked in the attached diagram: 1. Frame; 2. Sandblasting machine; 21. Sandblasting area; 22. Sandblasting nozzle; 3. First conveyor belt; 31. First power mechanism; 32. First conveyor roller; 4. Second conveyor belt; 41. Second power mechanism; 42. Second conveyor roller; 5. External conveyor belt; 51. External power mechanism; 52. External conveyor roller; 6. Limiting block; 61. Concave arc surface; 7. Sand box; 8. Workpiece; 9. Movable partition. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0024] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0025] Figure 1 A top view of a sandblasting apparatus according to an embodiment of the present disclosure is shown. Figure 2 A partial structural schematic diagram of the sandblasting area in a sandblasting apparatus according to an embodiment of this disclosure is shown. Please refer to... Figure 1 and Figure 2 The sandblasting device includes a frame 1, a first conveyor belt 3, and a second conveyor belt 4. A sandblasting machine 2 is mounted on the frame 1. The first conveyor belt 3 is oriented towards the sandblasting area 21 of the sandblasting machine 2. The second conveyor belt 4 is arranged in the same direction as the first conveyor belt 3. The first and second conveyor belts 3 and 4 are located in the same plane. A workpiece 8 is placed on both the first and second conveyor belts 3 and 4. The first and second conveyor belts 3 and 4 contact and support the workpiece 8. When the first and second conveyor belts 3 and 4 rotate synchronously in the same direction, they jointly drive the workpiece 8 to translate through friction. By adjusting the overall conveying direction of the first and second conveyor belts, the workpiece 8 can be driven to extend into or away from the sandblasting area 21. When the first and second conveyor belts 3 and 4 rotate in opposite directions, the frictional forces applied by the two conveyor belts create a torque, driving the workpiece 8 to rotate. When processing large workpieces 8, the workpiece 8 can be partially driven into the sandblasting area 21 for initial localized sandblasting. Then, the workpiece 8 is driven to rotate around its own axis to complete the sandblasting of the entire surface of the workpiece 8. Specifically, the rotation center of the workpiece 8 can be offset from the axis of the workpiece 8, as long as the entire surface of the workpiece 8 passes through the sandblasting area 21. In some embodiments, the workpiece 8 can also rotate multiple circumferences to perform two or more sandblasting processes, so as to perform sandblasting processes on the surface of the workpiece 8 multiple times in a short period of time, to adapt to different working conditions.

[0026] Please refer to Figure 1 and Figure 2 The sandblasting machine 2 is equipped with at least two sandblasting nozzles 222 to perform multi-directional sandblasting treatment on the surface of the workpiece 8, covering the entire surface of the workpiece 8. The sandblasting machine 2 can be a centrifugal sandblasting machine or a compressed air sandblasting machine known in the prior art, and this application does not limit the specific structure of the sandblasting machine 2.

[0027] Preferably, when the workpiece 8 is annular, along the first conveyor belt 3 and the second conveyor belt 4, only a portion of the workpiece 8 needs to enter the sandblasting area 21. Then, the workpiece 8 rotates around its own axis to sandblast the entire workpiece 8. All sandblasting nozzles 222 can be arranged circumferentially around the annular segment of the workpiece 8 along its radial direction, so as to simultaneously sandblast multiple surfaces circumferentially around the annular segment.

[0028] More preferably, all the blasting nozzles 222 are arranged on different planes to stagger the blasting directions of each blasting nozzle 222. This avoids the abrasive from violently colliding and damaging the abrasive due to two blasting nozzles 222 facing each other, and also avoids the abrasive from wearing down the opposing blasting nozzles 222, thus reducing the service life of the blasting nozzles 222. In some embodiments, the blasting direction of the blasting nozzles 222 is arranged along the radial plane of the workpiece 8, and the angle between the blasting direction and the workpiece 8 can be a small angle of 45°. The small angle blasting abrasive can slide along the surface of the workpiece 8, resulting in a finer surface while performing surface treatment on the workpiece 8, and also avoiding excessive abrasive impact that could damage the surface of the workpiece 8.

[0029] Please refer to Figure 1 and Figure 2 The first conveyor belt 3 includes a first power mechanism 31 mounted on the frame 1 and several first conveyor rollers 32 rotatably mounted on the frame 1. The first power mechanism 31 can be a motor. Adjacent first conveyor rollers 32 are arranged in parallel and synchronously connected by a transmission belt (not shown in the figure). The first power mechanism 31 is connected to the first conveyor rollers 32 via the transmission belt. The torque output by the first power mechanism 31 drives the first conveyor rollers 32 to rotate. The rotating first conveyor rollers 32 drive the workpiece 8 to move through friction. The transmission belt can be a chain, with sprockets correspondingly provided on the torque output end of the first power mechanism 31 and the first conveyor rollers 32 to connect the chain and transmit torque. The transmission belt can also be a synchronous belt, with synchronous pulleys correspondingly provided on the torque output end of the first power mechanism 31 and the first conveyor rollers 32 to connect the synchronous belt and transmit torque.

[0030] Preferably, the second conveyor belt 4 includes a second power mechanism 41 mounted on the frame 1 and a plurality of second conveyor rollers 42 rotatably mounted on the frame 1. The second power mechanism 41 can be a motor. Adjacent second conveyor rollers 42 are arranged in parallel and synchronously connected by a transmission belt. The second power mechanism 41 is connected to the second conveyor rollers 42 via the transmission belt. The torque output by the second power mechanism 41 drives the second conveyor rollers 42 to rotate. The rotating second conveyor rollers 42 drive the workpiece 8 to move through friction.

[0031] More preferably, an external conveyor belt 5 is also provided. The external conveyor belt 5 is located at the end of the first conveyor belt 3 and the second conveyor belt 4 away from the sandblasting machine 2. A movable partition 9 can be provided between the external conveyor belt 5 and the first conveyor belt 3 and the second conveyor belt 4. The movable partition 9 isolates the sandblasting area 21 of the workpiece 8, reducing the impact of abrasive splashing towards the external conveyor belt 5 during sandblasting on operator safety. The movable partition 9 is slidably mounted on the frame 1. Specifically, a sliding outer frame (not shown in the figure) can be provided on the frame 1, and a rolling element (not shown in the figure) is provided between the movable partition 9 and the sliding outer frame to slidably connect the movable partition 9 and the frame 1. The external conveyor belt 5 is sequentially connected to the first conveyor belt 3 and the second conveyor belt 4. Specifically, the external conveyor belt 5 includes an external power mechanism 51 mounted on the frame 1 and external conveying rollers 52 rotatably mounted on the frame 1. The external power mechanism 51 can be a motor. Adjacent external conveying rollers 52 are arranged in parallel and synchronously connected by a transmission belt. The external power mechanism 51 drives all external conveying rollers 52 to rotate, thereby translating the position of the workpiece 8 and extending the conveying distance of the workpiece 8. Compared to directly extending the first conveyor belt 3 and the second conveyor belt 4, this method saves costs.

[0032] In some embodiments, a cover (not shown in the figure) can be installed on the frame to cover the entire sandblasting area 21, so as to avoid safety hazards caused by abrasive splashing during sandblasting.

[0033] Figure 3 A schematic diagram of the mating structure between the limiting block and the workpiece in a sandblasting apparatus according to an embodiment of this disclosure is shown. Please refer to... Figure 1 , Figure 2 and Figure 3 A limiting block 6 is also provided on the frame 1. The limiting block 6 and the workpiece 8 are set on the same plane. The limiting block 6 is located at one end of the first conveyor belt 3 and the second conveyor belt 4 near the sandblasting area 21, restricting the movement of the workpiece 8 along the conveying direction of the first conveyor belt 3 and the second conveyor belt 4 to prevent the workpiece 8 from slipping. At the same time, the limiting block 6 acts as a positioning block to quickly position the workpiece 8 into the sandblasting area 21. There are gaps between the limiting block 6 and the first conveyor belt 3, and between the limiting block 6 and the second conveyor belt 4. This allows the workpiece 8 to extend out of the first conveyor belt 3 and the second conveyor belt 4 and be suspended in the air for sandblasting of the bottom surface. When the workpiece 8 is annular, it also facilitates sandblasting of the inner surface of the annular workpiece 8. The limiting block 6 can be a roller, with the axis of the roller parallel to the axis of the annular workpiece 8. By utilizing the characteristic of low rolling friction coefficient, the friction between the limiting block 6 and the workpiece 8 is reduced when the workpiece 8 rotates.

[0034] Preferably, the surface of the limiting block 6 facing the workpiece 8 can be a concave arc surface 61. The limiting block 6 contacts the workpiece 8 through the concave arc surface 61, limiting the distance that the workpiece 8 extends beyond the first conveyor belt 3 and the second conveyor belt 4, while also limiting the workpiece 8 from moving to both sides.

[0035] In some embodiments, at least two limiting blocks 6 are arranged around the workpiece 8. Taking an even number of limiting blocks 6 as an example, all the limiting blocks 6 are symmetrically arranged along the boundary line between the first conveyor belt 3 and the second conveyor belt 4. Taking three limiting blocks 6 as an example, refer to... Figure 3 One limiting block 6 is set along the boundary line between the first conveyor belt 3 and the second conveyor belt 4, and the other two limiting blocks 6 are symmetrically set along the boundary line between the first conveyor belt 3 and the second conveyor belt 4. The three limiting blocks 6 position the workpiece 8 to extend beyond the first conveyor belt 3 and the second conveyor belt 4, while further restricting the workpiece 8 from moving to the sides of the first conveyor belt 3 and the second conveyor belt 4, preventing the workpiece 8 from shifting to the sides, and ensuring that the workpiece 8 enters the designated sandblasting area 21.

[0036] More preferably, a sand box 7 is also provided. The sand box 7 is positioned directly below the sandblasting area 21 with its opening facing upwards, to collect the abrasive falling within the sandblasting area 21. A hopper can also be provided at the opening of the sand box 7 to increase the range of abrasive collection by the sand box 7.

[0037] The specific workflow of this utility model is as follows: A conveying device (not shown) places workpiece 8 on external conveyor roller 52. The first power mechanism 31, the second power mechanism 41, and the external power mechanism 51 are activated, driving the first conveyor roller 32, the second conveyor roller 42, and the external conveyor roller 52 to rotate, with the upper surface of each conveyor roller rotating towards the sandblasting area 21. Under the action of friction, the external conveyor roller 52 moves the workpiece onto the first conveyor roller 32 and the second conveyor roller 42. The first conveyor roller 32 and the second conveyor roller 42 move the workpiece until it abuts against the limiting block 6, at which point workpiece 8 extends into the sandblasting area 21. The first power mechanism 31, the second power mechanism 41, and the external power mechanism 51 stop, and the first conveyor roller 32, the second conveyor roller 42, and the external conveyor roller 52 stop rotating. The movable partition 9 is pushed along the sliding outer frame to isolate the sandblasting area 21. The first power mechanism 31 and the second power mechanism 41 are activated, driving the first conveyor roller 32 and the second conveyor roller 42 to rotate in opposite directions. The frictional force applied to workpiece 8 by the first conveyor roller 32 and the second conveyor roller 42 forms a torque, driving workpiece 8 to rotate. The sandblasting machine 2 is started, and abrasive material is ejected from each of the sandblasting nozzles 222 to strike the workpiece 8. After sandblasting is completed, the sandblasting machine 2 stops working and pushes the movable partition 9 back to its original position along the sliding outer frame. The first power mechanism 31, the second power mechanism 41, and the external power mechanism 51 drive the first conveying roller 32, the second conveying roller 42, and the external conveying roller 52 to rotate, wherein the upper surface of each conveying roller rotates and moves away from the sandblasting area 21. Under the action of friction, the first conveying roller 32 and the second conveying roller 42 move the workpiece onto the external conveying roller 52, and the external conveying roller 52 moves the workpiece to the unloading position. The handling equipment removes the workpiece 8, completing the sandblasting treatment of the workpiece 8.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sandblasting device, characterized in that, The sandblasting device includes: The frame is equipped with a sandblasting machine; The first conveyor belt is directed toward the sandblasting area of ​​the sandblasting machine; The second conveyor belt is arranged in the same direction as the first conveyor belt; the first conveyor belt and the second conveyor belt are arranged in the same plane; The workpiece is placed on both the first conveyor belt and the second conveyor belt; the first conveyor belt and the second conveyor belt contact and support the workpiece together.

2. The sandblasting device as described in claim 1, characterized in that: The sandblasting machine is equipped with at least two sandblasting nozzles.

3. The sandblasting device as described in claim 2, characterized in that: The workpiece is annular; along the first conveyor belt and the second conveyor belt, a portion of the annular segment of the workpiece enters the sandblasting area; along the radial direction of the workpiece, all the sandblasting nozzles are arranged circumferentially around the annular segment of the workpiece.

4. The sandblasting device as described in claim 2, characterized in that: All of the sandblasting nozzles are arranged on different planes; the sandblasting direction of the sandblasting nozzles is arranged radially along the workpiece.

5. The sandblasting device as described in claim 1, characterized in that: The first conveyor belt includes a first power mechanism mounted on the frame and a plurality of first conveying rollers rotatably mounted on the frame; adjacent first conveying rollers are arranged in parallel and synchronously connected by a transmission belt; the first power mechanism is connected to the first conveying rollers through the transmission belt.

6. The sandblasting device as described in claim 1, characterized in that: The second conveyor belt includes a second power mechanism mounted on the frame and a plurality of second conveyor rollers rotatably mounted on the frame; adjacent second conveyor rollers are arranged in parallel and synchronously connected by a transmission belt; the second power mechanism is connected to the second conveyor rollers through the transmission belt.

7. The sandblasting device as described in claim 1, characterized in that: An external conveyor belt is also provided; the external conveyor belt is located at the end of the first conveyor belt and the second conveyor belt away from the sandblasting machine; the external conveyor belt is connected sequentially to the first conveyor belt and the second conveyor belt.

8. The sandblasting device as described in claim 1, characterized in that: The frame is also provided with a limiting block; the limiting block and the workpiece are arranged on the same plane; the limiting block is arranged at one end of the first conveyor belt and the second conveyor belt near the sandblasting area; a gap is provided between the limiting block and the first conveyor belt, and between the limiting block and the second conveyor belt.

9. The sandblasting device as described in claim 8, characterized in that: At least two limiting blocks are provided around the workpiece.

10. The sandblasting device as described in claim 1, characterized in that: A sand box is also provided; the sand box is positioned with its opening facing upwards directly below the sandblasting area.

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