A shot blasting machine for processing guardrail steel plates

By introducing structures such as moving blocks, diagonal bars, C-shaped plates, and guide plates into the shot blasting machine, the problem of steel plate deviation during the conveying process is solved, thereby improving the uniformity of shot blasting coverage and the surface cleaning effect.

CN224390831UActive Publication Date: 2026-06-23HEBEI LUXIN TRANSPORTATION FACILITIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI LUXIN TRANSPORTATION FACILITIES CO LTD
Filing Date
2025-07-26
Publication Date
2026-06-23

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Abstract

This disclosure relates to the field of shot blasting machine technology. One embodiment of this disclosure provides a shot blasting machine for processing guardrail steel plates, including a mounting frame. A fixed plate is fixedly connected to the bottom of the inner cavity of the mounting frame. In this disclosure, by setting a moving block, inclined rods, C-shaped plates, guide plates, and buffer pads, starting the first motor will cause the threaded rod to rotate, thereby causing the moving block to move horizontally to the right under the limiting action of the fixed plate. At this time, the two inclined rods will move, and the two C-shaped plates will drive the two guide plates to move horizontally towards each other under the limiting action of the fixed sleeve, thereby realizing the function of adjusting the distance between the two buffer pads, achieving the centering and guiding effect of steel plates of different sizes, avoiding the steel plates from shifting during transportation on the conveyor rollers, resulting in uneven shot blasting coverage, which affects the surface processing effect of the device. Through the above technical solution, the technical problem of steel plates being prone to shifting in the prior art is solved.
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Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of shot blasting machine technology, and more specifically, to a shot blasting machine for processing guardrail steel plates. Background Technology

[0002] Shot blasting machines are mechanical devices that use high-speed projectiles of metal shot to clean, strengthen, or shape the surface of workpieces. Their core component is the shot blaster, which uses centrifugal force to accelerate the shot to high speed before impacting the workpiece, effectively removing surface oxide scale, rust, burrs, and other impurities. Simultaneously, it can improve the surface hardness and fatigue resistance of the workpiece. Based on their structure, they can be divided into various types such as hook-type, crawler-type, and drum-type. They are widely used in industries such as casting, automotive, shipbuilding, and steel structure. The equipment is typically equipped with a dust removal system to recover the shot and treat dust. It features high efficiency, environmental friendliness, and a high degree of automation. By adjusting the shot material, particle size, and blasting parameters, different process requirements can be met, making it an important piece of equipment in modern surface treatment processes.

[0003] In the current technology, operators often use shot blasting machines to perform surface processing on guardrail steel plates. While existing shot blasting machines provide basic surface processing, they lack horizontal positioning capabilities. This can easily lead to slippage and deviation of the steel plates during transport, causing changes in the angle at which they enter the shot blasting machine. This results in uneven shot coverage, dead spots (such as residual oxide scale), or localized over-blasting, affecting the surface processing effect of the steel plates. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this disclosure provide a shot blasting machine for processing guardrail steel plates, which solves the technical problem of easy displacement of steel plates in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a shot blasting machine for processing guardrail steel plates, including a mounting frame. A fixed plate is fixedly connected to the bottom of the inner cavity of the mounting frame. A rectangular plate is fixedly connected to the bottom of the fixed plate. A first motor is fixedly connected to the right side of the rectangular plate. A threaded rod is fixedly sleeved at the other end of the output shaft of the first motor. The other end of the threaded rod passes through the rectangular plate and extends into the interior of the rectangular plate, and a moving block is threadedly sleeved thereon. The top of the moving block is movably connected to the inner surface of the fixed plate. Diagonal rods are hinged to both the front and rear sides of the moving block. A C-shaped plate is hinged to the other end of the diagonal rod. A guide plate is fixedly connected to the other end of the C-shaped plate. A buffer pad made of polyurethane is fixedly connected to the inner side of the guide plate. Fixed sleeves are fixedly connected to the top and bottom of the mounting frame, and the inner surface of the fixed sleeves is movably sleeved with the outer surface of the C-shaped plate.

[0006] As a preferred embodiment of this disclosure, a second motor is fixedly connected to the front of the mounting frame, and a rotating shaft is fixedly sleeved at the other end of the output shaft of the second motor. The other end of the rotating shaft passes through the mounting frame and extends into the interior of the mounting frame, where a conveying roller is fixedly sleeved.

[0007] As a preferred embodiment of this disclosure, a shot blasting equipment body is fixedly connected to the top left side of the mounting bracket, and a control panel is fixedly connected to the upper right corner of the front of the shot blasting equipment body.

[0008] As a preferred embodiment of this disclosure, the bottom of the mounting bracket is fixedly connected to six support rods, all of which are of the same size.

[0009] As a preferred embodiment of this disclosure, a protective shell is fixedly connected to the right side of the rectangular plate, and the inner surface of the protective shell is movably connected to the outer surface of the first motor.

[0010] As a preferred embodiment of this disclosure, a vertical plate is fixedly mounted on the inner surface of the mounting bracket, a connecting plate is fixedly connected to the front of the vertical plate, mounting rods are fixedly connected to both the left and right sides of the connecting plate, and sliding blocks are movably fitted onto the outer surface of the mounting rods, the outer surface of the mounting rods being smooth.

[0011] As a preferred embodiment of this disclosure, a stainless steel light-load spring is movably sleeved on the outer surface of the mounting rod. The right side of the stainless steel light-load spring is fixedly connected to the left side of the connecting plate, and the left side of the stainless steel light-load spring is fixedly connected to the right side of the sliding block.

[0012] As a preferred embodiment of this disclosure, the top and bottom of the sliding block are hinged with connecting rods, and the other end of each connecting rod is hinged with a rectangular block. The outer surface of the rectangular block is movably connected to the inner surface of the vertical plate.

[0013] As a preferred embodiment of this disclosure, a connecting frame is fixedly connected to the back of the rectangular block, and a brush roller is movably sleeved inside the connecting frame.

[0014] As a preferred embodiment of this disclosure, the number of guide plates is two, the two guide plates are of the same size, and the two guide plates are symmetrical about the center of the threaded rod.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] 1. This disclosure uses a moving block, inclined rods, C-shaped plates, guide plates, and buffer pads. Starting the first motor causes the threaded rod to rotate, allowing the moving block to move horizontally to the right under the limiting action of the fixed plate. This causes the two inclined rods to move, and the two C-shaped plates to drive the two guide plates to move horizontally towards each other under the limiting action of the fixed sleeve. This adjusts the distance between the two buffer pads, achieving a centered guiding effect for steel plates of different sizes. This prevents the steel plates from shifting during transport on the conveyor rollers, which could lead to uneven shot blasting coverage and affect the surface processing effect of the device.

[0017] 2. This disclosure uses a stainless steel light-load spring, a connecting rod, rectangular blocks, a connecting frame, and brush rollers. When the steel plate passes between the vertical plates, the steel plate will be pushed open by the rotation of the two sets of conveying rollers. This causes the two connecting frames to drive the rectangular blocks on their left and right sides to move vertically in opposite directions under the limiting action of the vertical plates. At this time, the connecting rod moves, causing the sliding block to move horizontally towards the connecting plate under the limiting action of the mounting rod. The stainless steel light-load spring will be in a compressed state, ensuring that the two connecting frames drive the two brush rollers to always stick to the steel plate. The two brush rollers roll as the steel plate is transported, achieving a cleaning effect on the surface of the steel plate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A cross-sectional view of the fixing frame in the embodiment;

[0021] Figure 3 for Figure 1 A cross-sectional view of the second motor in the embodiment;

[0022] Figure 4 for Figure 2 A cross-sectional view of the brush roller in the embodiment;

[0023] Figure 5 This is a schematic diagram of the bottom structure in one embodiment of the present disclosure;

[0024] Figure 6 for Figure 1 A cross-sectional view of the C-shaped plate in the embodiment;

[0025] Figure 7 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Mounting frame; 2. Fixing plate; 3. Rectangular plate; 4. First motor; 5. Threaded rod; 6. Moving block; 7. Diagonal rod; 8. C-shaped plate; 9. Guide plate; 10. Buffer pad; 11. Fixing sleeve; 12. Second motor; 13. Rotating shaft; 14. Conveying roller; 15. Shot blasting equipment body; 16. Control panel; 17. Support rod; 18. Protective shell; 19. Vertical plate; 20. Connecting plate; 21. Mounting rod; 22. Sliding block; 23. Stainless steel light-load spring; 24. Connecting rod; 25. Rectangular block; 26. Connecting frame; 27. Brush roller. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-7 The image shows a shot blasting machine for processing guardrail steel plates according to an embodiment of this disclosure. It includes a mounting frame 1, a fixed plate 2 fixedly connected to the bottom of the inner cavity of the mounting frame 1, a rectangular plate 3 fixedly connected to the bottom of the fixed plate 2, a first motor 4 fixedly connected to the right side of the rectangular plate 3, a threaded rod 5 fixedly sleeved at the other end of the output shaft of the first motor 4, the other end of the threaded rod 5 penetrating the rectangular plate 3 and extending into the interior of the rectangular plate 3, and threadedly sleeved with a moving block 6, the top of the moving block 6 movably connected to the inner surface of the fixed plate 2, and diagonal rods 7 hinged to both the front and rear sides of the moving block 6, the other end of the diagonal rods 7 hinged to a C-shaped plate 8, the other end of the C-shaped plate 8 fixedly connected to a guide plate 9, a buffer pad 10 fixedly connected to the inner side of the guide plate 9, the buffer pad 10 being made of polyurethane, and fixed sleeves 11 fixedly connected to the top and bottom of the mounting frame 1, the inner surface of the fixed sleeves 11 movably sleeved with the outer surface of the C-shaped plate 8.

[0034] The elastic modulus of polyurethane is adjustable, which can both buffer impact and wear resistance without damaging the steel plate surface. It is also oil-resistant and aging-resistant, making it suitable for humid or oily environments. The outer surface of the C-shaped plate 8 is smooth. This design makes the sliding of the C-shaped plate 8 on the inner surface of the fixing sleeve 11 smoother, while reducing the friction between the C-shaped plate 8 and the fixing sleeve 11 and improving the service life of the C-shaped plate 8 and the fixing sleeve 11.

[0035] In some examples, a second motor 12 is fixedly connected to the front of the mounting frame 1. A rotating shaft 13 is fixedly sleeved at the other end of the output shaft of the second motor 12. The other end of the rotating shaft 13 passes through the mounting frame 1 and extends into the interior of the mounting frame 1, where a conveyor roller 14 is fixedly sleeved.

[0036] The six conveyor rollers are evenly spaced, a design that prevents the steel plate from falling through the gaps during conveying.

[0037] In some examples, the shot blasting equipment body 15 is fixedly connected to the top left side of the mounting bracket 1, and a control panel 16 is fixedly connected to the upper right corner of the front of the shot blasting equipment body 15.

[0038] The output terminal of the control panel 16 is electrically connected to the input terminal of the first motor 4, the second motor 12, and the shot blasting equipment body 15, which allows the operator to start and stop the first motor 4, the second motor 12, and the shot blasting equipment body 15 using only the control panel 16.

[0039] In some examples, the bottom of the mounting bracket 1 is fixedly connected to six support rods 17, all of which are of the same size.

[0040] The six support rods 17 are evenly distributed at the bottom of the mounting frame 1, which can evenly distribute the overall weight of the device and improve the load-bearing capacity of the support rods 17.

[0041] In some examples, a protective shell 18 is fixedly connected to the right side of the rectangular plate 3, and the inner surface of the protective shell 18 is movably connected to the outer surface of the first motor 4.

[0042] Due to the design of the protective shell 18, the first motor 4 is sealed off, preventing external dust and moisture from entering the interior of the first motor 4.

[0043] In some examples, a vertical plate 19 is fixedly mounted on the inner surface of the mounting bracket 1, a connecting plate 20 is fixedly connected to the front of the vertical plate 19, and mounting rods 21 are fixedly connected to both the left and right sides of the connecting plate 20. A sliding block 22 is movably fitted onto the outer surface of the mounting rod 21, and the outer surface of the mounting rod 21 is smooth.

[0044] This design makes the sliding block 22 slide more smoothly on the outer surface of the mounting rod 21, while reducing the friction between the mounting rod 21 and the sliding block 22, thus improving the service life of the mounting rod 21 and the sliding block 22.

[0045] In some examples, a stainless steel light-load spring 23 is movably sleeved on the outer surface of the mounting rod 21. The right side of the stainless steel light-load spring 23 is fixedly connected to the left side of the connecting plate 20, and the left side of the stainless steel light-load spring 23 is fixedly connected to the right side of the sliding block 22.

[0046] Due to the design of the stainless steel light-load spring 23, the sliding block 22 has a good reset effect during subsequent movement.

[0047] In some examples, the top and bottom of the sliding block 22 are hinged to connecting rods 24, and the other end of the connecting rods 24 is hinged to a rectangular block 25. The outer surface of the rectangular block 25 is movably connected to the inner surface of the vertical plate 19.

[0048] The outer surface of the rectangular block 25 is smooth, which makes the sliding of the rectangular block 25 on the inner surface of the vertical plate 19 smoother.

[0049] In some examples, a connecting frame 26 is fixedly connected to the back of the rectangular block 25, and a brush roller 27 is movably fitted inside the connecting frame 26.

[0050] Due to the elastic force of the four stainless steel light-load springs 23, the two brush rollers 27 can respectively adhere to the upper and lower sides of the steel plate, thereby ensuring the surface cleaning effect of the brush rollers 27.

[0051] In some examples, there are two guide plates 9, both of the same size, and the two guide plates 9 are symmetrical about the center of the threaded rod 5.

[0052] The inclined surface on the guide plate 9 enables the guide plate 9 to guide the steel plate that has shifted, while the design of two symmetrical guide plates 9 serves to center the steel plate.

[0053] The working principle and usage process of this disclosure are as follows:

[0054] The second motor 12 is started via the control panel 16, causing the rotating shaft 13 to drive the conveyor roller 14 to rotate. At this time, the guardrail steel plate will be loaded. After being guided by the guide plate 9, the guardrail steel plate passes between the vertical plates 19. At this time, the steel plate will be driven by the rotation of the two sets of conveyor rollers 14, pushing open the two sets of brush rollers 27. The two connecting frames 26 will drive the rectangular blocks 25 on their left and right sides to move vertically in opposite directions under the limiting action of the vertical plate 19. At this time, the connecting rod 24 will move, and the sliding block 22 will move horizontally towards the connecting plate 20 under the limiting action of the mounting rod 21. At this time, the stainless steel light load spring 23 will be in a compressed state, ensuring that the two connecting frames 26 drive the two brush rollers 27 to always stick to the steel plate, and the two brush rollers 27 will roll with the transport of the steel plate to achieve the cleaning effect on the surface of the steel plate.

[0055] After the steel plate enters the shot blasting equipment body 15, the shot blasting equipment body 15 is started through the control panel 16. At this time, the surface processing operation of the steel plate will be carried out. When the size of the steel plate is small and the initial position of the buffer pad 10 cannot achieve a good centering and guiding effect, the first motor 4 is started, which will cause the threaded rod 5 to rotate. This will cause the moving block 6 to move horizontally to the right under the limiting action of the fixed plate 2. At this time, the two inclined rods 7 will move, and the two C-shaped plates 8 will drive the two guide plates 9 to move horizontally towards each other under the limiting action of the fixed sleeve 11. This will achieve the function of adjusting the distance between the two buffer pads 10, realizing the centering and guiding effect of steel plates of different sizes, and avoiding the steel plate from shifting when transported on the conveyor roller 14, which would lead to uneven shot blasting coverage and affect the surface processing effect of the device.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A shot blasting machine for processing guardrail steel plates, comprising a mounting frame (1), characterized in that: A fixed plate (2) is fixedly connected to the bottom of the inner cavity of the mounting bracket (1). A rectangular plate (3) is fixedly connected to the bottom of the fixed plate (2). A first motor (4) is fixedly connected to the right side of the rectangular plate (3). A threaded rod (5) is fixedly sleeved at the other end of the output shaft of the first motor (4). The other end of the threaded rod (5) passes through the rectangular plate (3) and extends into the interior of the rectangular plate (3) and is threadedly sleeved with a moving block (6). The top of the moving block (6) is movably connected to the inner surface of the fixed plate (2). An inclined rod (7) is hinged to both the front and rear sides of the moving block (6). A C-shaped plate (8) is hinged to the other end of the inclined rod (7). A guide plate (9) is fixedly connected to the other end of the C-shaped plate (8). A buffer pad (10) is fixedly connected to the inner side of the guide plate (9). The buffer pad (10) is made of polyurethane. A fixed sleeve (11) is fixedly connected to the top and bottom of the mounting bracket (1). The inner surface of the fixed sleeve (11) is movably sleeved with the outer surface of the C-shaped plate (8).

2. A shot blasting machine for processing guardrail steel plates according to claim 1, characterized in that: The front of the mounting frame (1) is fixedly connected to a second motor (12), and the other end of the output shaft of the second motor (12) is fixedly sleeved with a rotating shaft (13). The other end of the rotating shaft (13) passes through the mounting frame (1) and extends into the interior of the mounting frame (1) and is fixedly sleeved with a conveying roller (14).

3. The shot blasting machine for processing guardrail steel plates according to claim 1, characterized in that: The shot blasting equipment body (15) is fixedly connected to the top left side of the mounting bracket (1), and the control panel (16) is fixedly connected to the upper right corner of the front of the shot blasting equipment body (15).

4. The shot blasting machine for processing guardrail steel plates according to claim 1, characterized in that: The bottom of the mounting bracket (1) is fixedly connected to a support rod (17), and there are six support rods (17), all of which are the same size.

5. A shot blasting machine for processing guardrail steel plates according to claim 1, characterized in that: A protective shell (18) is fixedly connected to the right side of the rectangular plate (3), and the inner surface of the protective shell (18) is movably connected to the outer surface of the first motor (4).

6. The shot blasting machine for processing guardrail steel plates according to claim 1, characterized in that: A vertical plate (19) is fixedly installed on the inner surface of the mounting bracket (1). A connecting plate (20) is fixedly connected to the front of the vertical plate (19). Mounting rods (21) are fixedly connected to both the left and right sides of the connecting plate (20). A sliding block (22) is movably sleeved on the outer surface of the mounting rod (21). The outer surface of the mounting rod (21) is smooth.

7. A shot blasting machine for processing guardrail steel plates according to claim 6, characterized in that: A stainless steel light-load spring (23) is movably sleeved on the outer surface of the mounting rod (21). The right side of the stainless steel light-load spring (23) is fixedly connected to the left side of the connecting plate (20), and the left side of the stainless steel light-load spring (23) is fixedly connected to the right side of the sliding block (22).

8. A shot blasting machine for processing guardrail steel plates according to claim 6, characterized in that: The top and bottom of the sliding block (22) are both hinged with connecting rods (24), and the other end of the connecting rod (24) is hinged with a rectangular block (25). The outer surface of the rectangular block (25) is movably connected to the inner surface of the vertical plate (19).

9. A shot blasting machine for processing guardrail steel plates according to claim 8, characterized in that: A connecting frame (26) is fixedly connected to the back of the rectangular block (25), and a brush roller (27) is movably sleeved inside the connecting frame (26).

10. A shot blasting machine for processing guardrail steel plates according to claim 1, characterized in that: The number of guide plates (9) is two, the two guide plates (9) are the same size, and the two guide plates (9) are symmetrical about the threaded rod (5).