Stainless steel bar surface abrasive spraying treatment device

Abstract

The utility model discloses a stainless steel bar surface abrasive spraying treatment device which comprises a sand blasting machine, the outer walls of the two sides of the sand blasting machine are each fixedly connected with an installation frame, the two installation frames are both horizontally arranged, and conveying assemblies are installed in the two installation frames. The conveying assembly comprises a plurality of conveying rollers which are rotationally connected through bearings in the mounting frame, the conveying rollers are located on the same horizontal plane, the circumferential outer wall of a rotating shaft of each conveying roller is fixedly sleeved with two first belt wheels, the two adjacent first belt wheels are sleeved with the same first belt, and the first belts are arranged in a staggered mode; according to the steel bar conveying device, by arranging the conveying assembly, steel bars can be driven to continuously move, meanwhile, the rotating state can be kept, the whole steel bars can be comprehensively treated, and the secondary machining procedure does not need to be added.

Description

Technical Field

[0001] This utility model relates to the field of steel bar production technology, specifically to an abrasive spraying treatment device for the surface of stainless steel bars. Background Technology

[0002] After processing, steel bars often develop black oxide scale or other contaminants on their surface. Therefore, surface treatment is required to remove these contaminants and improve their surface quality. Currently, the most common method is to use a sandblasting machine for this purpose.

[0003] A search revealed a utility model patent with Chinese patent publication number CN117020971B, which discloses an abrasive blasting treatment device for the surface of stainless steel bars. The device includes a main frame placed on a table; a clamping device is provided on the main frame to clamp the stainless steel bars and restrict their radial degrees of freedom; a movable device is provided on the main frame to drive the movable device to move and simultaneously rotate the stainless steel bars; the movable device is used to perform abrasive blasting treatment on the stainless steel bars.

[0004] Although the above-mentioned device can perform abrasive blasting on the steel bar from all directions, the clamped part will also be a blind spot. After removing it, it will need to be sandblasted again, which will increase the workload and is not conducive to improving processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an abrasive spraying treatment device for the surface of stainless steel bars to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel bar surface abrasive blasting treatment device, including a sandblasting machine. A mounting frame is fixedly connected to the outer walls of both sides of the sandblasting machine. Both mounting frames are horizontally arranged. A conveying assembly is installed inside each of the two mounting frames. The conveying assembly includes multiple conveying rollers rotatably connected to the mounting frames via bearings, and the multiple conveying rollers are arranged at the same horizontal level. Two pulleys are fixedly sleeved on the outer circumference of the shafts of the multiple conveying rollers. The same belt is sleeved on two adjacent pulleys, and the multiple belts are arranged in an alternating manner. A motor is fixedly installed on the outer wall of one end of the mounting frame, and the motor output end is coaxially fixed to one end of the shaft of one of the conveying rollers.

[0007] As a further preferred embodiment of this technical solution, a vertically arranged mounting cover is fixedly connected to one end of the top outer wall of the mounting frame. A drive ring is rotatably connected to the inner circumference of the mounting cover via a bearing. The drive ring is tangent to the inner circumference of the conveying roller. A beveled tooth ring is fixedly sleeved on one end of the outer circumference of the drive ring.

[0008] As a further preferred embodiment of this technical solution, a support base is fixedly connected to the top outer wall of the mounting frame, and a gear rod is rotatably connected inside the support base through a bearing. The bevel gear at the end of the gear rod meshes with a bevel ring, and a pulley three is fixedly sleeved on the outer circumference of the gear rod, and the pulley three and one of the pulleys are all fitted with the same belt two.

[0009] While driving the steel bar to move continuously, it also maintains its rotation, ensuring that the entire steel bar is fully processed without the need for secondary processing. The steel bar is placed in the groove of the conveyor roller, and under the action of gravity, it will roll downwards. Finally, the steel bar will move to the center position of multiple conveyor rollers. Then, the motor outside the mounting frame is started, and its output end drives one conveyor roller to rotate. This conveyor roller drives several other conveyor rollers to rotate synchronously through pulley one and belt one. At this time, the steel bar will be carried through the through slot into the sandblasting machine. While the conveyor roller is rotating, it drives the gear rod to rotate through belt two. The gear rod drives the drive ring to rotate through the bevel gear ring meshing with it. The drive ring drives the steel bar to rotate, thus ensuring that the sandblasting is sufficiently comprehensive.

[0010] As a further preferred embodiment of this technical solution, two anti-escape components are installed on the outside of the sandblasting machine. The two anti-escape components are located at both ends of the sandblasting machine. Each anti-escape component includes a protective plate that is rotatably connected to the outer wall of one end of the sandblasting machine via a bearing. The protective plate has multiple equally spaced through slots inside. Each of the multiple through slots can be connected to the inlet and outlet of the sandblasting machine, and each of the multiple through slots can be tangent to the inner circumference of the conveyor roller.

[0011] As a further preferred embodiment of this technical solution, a mounting frame is fixedly connected to one side of the outer wall of the sandblasting machine. A horizontally arranged connecting rod is rotatably connected inside the mounting frame. A pulley II is fixedly fitted on the outer circumference of the connecting rod and the outer circumference of the protective plate. A belt III is fitted on each of the two pulley IIs. A stepper motor is fixedly installed on the outer wall of one end of the mounting frame. The stepper motor is coaxially fixed with one end of the connecting rod.

[0012] Start the stepper motor at the end of the mounting bracket. Its output drives one pulley two to rotate. This pulley two drives another pulley two to rotate synchronously through belt three. As a result, the protective plate will also be driven to rotate until the corresponding through slot connects with the inlet and outlet of the sandblasting machine and stops. This ensures that the steel rod can pass through the sandblasting machine smoothly, while preventing the inlet and outlet from being too large and causing the abrasive to splash out through the gap, thus saving the subsequent cleaning process.

[0013] As a further preferred embodiment of this technical solution, the inner circumference of the drive ring is provided with a plurality of equally spaced rubber strips.

[0014] As a further preferred embodiment of this technical solution, belt one, belt two and belt three are all toothed belts adapted to toothed pulleys.

[0015] This utility model provides an abrasive spraying treatment device for the surface of stainless steel bars, which has the following beneficial effects:

[0016] (1) By setting up a conveying component, this utility model can drive the steel bar to move continuously while maintaining its rotation state, so that the entire steel bar can be fully processed without adding a secondary processing step. The steel bar is placed in the groove of the conveying roller, and under the action of gravity, it will roll downward. Finally, the steel bar will move to the center of multiple conveying rollers. Then, the motor outside the mounting frame is started, and its output end will drive one conveying roller to rotate. This conveying roller can drive the other several conveying rollers to rotate synchronously through pulley one and belt one. At this time, the steel bar will be driven through the through groove into the sandblasting machine. While the conveying roller is rotating, it can drive the gear rod to rotate through belt two. The gear rod will drive the drive ring to rotate through the bevel gear ring meshing with it. The drive ring will drive the steel bar to rotate, thereby ensuring that the sandblasting is sufficiently comprehensive.

[0017] (2) By setting up an anti-escape component, the stepper motor at the end of the mounting frame is started, and its output end drives a pulley two to rotate. This pulley two can drive another pulley two to rotate synchronously through the belt three. In turn, the protective plate will also be driven to rotate until the corresponding through groove is connected to the inlet and outlet of the sandblasting machine and stops. This ensures that the steel rod can pass through the sandblasting machine smoothly, while preventing the inlet and outlet from being too large and causing the abrasive to splash out through the gap, thus saving the subsequent cleaning process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0022] In the diagram: 1. Sandblasting machine; 2. Mounting frame; 3. Conveying assembly; 4. Anti-escape assembly; 301. Conveying roller; 302. Pulley 1; 303. Belt 1; 304. Mounting cover; 305. Drive ring; 306. Bevel gear ring; 307. Support base; 308. Gear rod; 309. Belt 2; 310. Rubber strip; 401. Protective plate; 402. Through groove; 403. Mounting bracket; 404. Pulley 2; 405. Belt 3; 406. Connecting rod; 407. Stepper motor. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown in this embodiment, an abrasive blasting treatment device for the surface of stainless steel bars includes a sandblasting machine 1. Compressed air inside the machine creates a negative pressure within the spray gun, drawing abrasive material into the gun through a sand feeding pipe. Driven by the compressed air, the abrasive material is ejected at high speed through the nozzle, forming a high-speed jet beam. This high-speed jet beam impacts and cuts the workpiece surface, thereby altering its mechanical properties. (This equipment is existing, and its working process has not been improved; therefore, it will not be described in detail.) A mounting frame 2 is fixedly connected to the outer walls of both sides of the sandblasting machine 1. Both mounting frames 2 are horizontally arranged, and each mounting frame 2 is equipped with a conveying assembly 3. The conveying assembly 3 includes multiple conveying rollers 301 that are rotatably connected inside the mounting frame 2 via bearings. The multiple conveying rollers 301 are arranged at the same horizontal level. Two pulleys 302 are fixedly sleeved on the outer circumference of the shaft of each of the multiple conveying rollers 301. The same belt 303 is sleeved on two adjacent pulleys 302. The multiple belts 303 are arranged in an alternating manner. A motor is fixedly installed on the outer wall of one end of the mounting frame 2, and the output end of the motor is coaxially fixed with one end of the shaft of one of the conveying rollers 301.

[0025] A vertically arranged mounting cover 304 is fixedly connected to one end of the top outer wall of the mounting frame 2. A drive ring 305 is rotatably connected to the inner circumference of the mounting cover 304 via a bearing. The drive ring 305 is tangent to the inner circumference of the conveying roller 301, ensuring that the steel bar can be conveyed and contact the bottom wall of the drive ring 305, thereby enabling subsequent driving operations to proceed smoothly. A beveled tooth ring 306 is fixedly sleeved on one end of the outer circumference of the drive ring 305.

[0026] A support base 307 is fixedly connected to the top outer wall of the mounting frame 2. A gear rod 308 is rotatably connected inside the support base 307 via a bearing. The bevel gear at the end of the gear rod 308 meshes with the bevel ring 306. A pulley three is fixedly sleeved on the outer circumference of the gear rod 308, and the pulley three and one of the pulleys 302 are sleeved with the same belt two 309.

[0027] After adjustment, the steel rod is placed in the groove of the conveyor roller 301. Under the action of gravity, it will roll downwards until it reaches the center of the multiple conveyor rollers 301. Then, the motor outside the mounting frame 2 is started, and its output will drive one conveyor roller 301 to rotate. This conveyor roller 301 drives the other conveyor rollers 301 to rotate synchronously through pulley 302 and belt 303. At this time, the steel rod will be driven through the through groove 402 and enter the sandblasting machine 1. When the steel rod is rotated, it can drive the gear rod 308 to rotate via the belt 309. The gear rod 308, through the bevel gear ring 306 meshing with it, will drive the drive ring 305 to rotate. The drive ring 305 will drive the steel rod to rotate, thus ensuring that the sandblasting is comprehensive enough. When one end of the steel rod passes through the sandblasting machine 1, it will contact another drive ring 305 and the conveyor roller 301 in turn, thus ensuring that the other end of the steel rod can still be driven to move after entering the sandblasting machine 1. This ensures that the cleaning process can be carried out automatically without manual intervention.

[0028] like Figure 2 and Figure 4 As shown, two anti-escape components 4 are installed on the outside of the sandblasting machine 1. The two anti-escape components 4 are located at both ends of the sandblasting machine 1. The anti-escape component 4 includes a protective plate 401 that is rotatably connected to the outer wall of one end of the sandblasting machine 1 through a bearing. The protective plate 401 has multiple equally spaced through slots 402 inside. The multiple through slots 402 can be connected to the inlet and outlet of the sandblasting machine 1, and the multiple through slots 402 can be tangent to the inner circumference of the conveyor roller 301, thereby ensuring that the steel rod in the groove of the multiple conveyor roller 301 can enter the multiple through slots 402, so that the subsequent work can proceed smoothly.

[0029] A mounting bracket 403 is fixedly connected to one side of the outer wall of the sandblasting machine 1. A horizontally arranged connecting rod 406 is rotatably connected inside the mounting bracket 403. A pulley 404 is fixedly fitted on the outer circumference of the connecting rod 406 and the outer circumference of the protective plate 401. A belt 405 is fitted on each of the two pulleys 404. A stepper motor 407 is fixedly installed on one end of the outer wall of the mounting bracket 403. The stepper motor 407 is coaxially fixed with one end of the connecting rod 406.

[0030] The stepper motor 407 at the end of the mounting bracket 403 is started, and its output drives one pulley 404 to rotate. This pulley 404 drives another pulley 404 to rotate synchronously through the belt 405. Consequently, the protective plate 401 is also driven to rotate until the corresponding through groove 402 connects with the inlet and outlet of the sandblasting machine 1 and stops. This ensures that the steel rod can pass through the sandblasting machine 1 smoothly, while preventing the abrasive from splashing out through the gap due to the inlet and outlet being too large, thus eliminating the need for subsequent cleaning.

[0031] like Figure 3 As shown, the inner circumference of the drive ring 305 is provided with multiple equally spaced rubber strips 310, which helps to increase the friction between the drive ring 305 and the steel rod and avoid drive failure due to slippage.

[0032] like Figure 3 and Figure 4 As shown, belt 1 303, belt 2 309 and belt 3 405 all use toothed belts that are compatible with toothed pulleys. The belts and their compatible pulleys can mesh with each other, thereby effectively preventing slippage during transmission.

[0033] This utility model provides an abrasive blasting treatment device for the surface of stainless steel bars, the specific working principle of which is as follows:

[0034] When the device is working, a suitable through slot 402 is driven according to the size of the steel bar, so that the through slot 402 is connected to the inlet and outlet of the sandblasting machine 1 and then stops. The stepper motor 407 at the end of the mounting bracket 403 is started, and its output end drives a pulley 404 to rotate. This pulley 404 drives another pulley 404 to rotate synchronously through the belt 405. As a result, the protective plate 401 is also driven to rotate until the corresponding through slot 402 is connected to the inlet and outlet of the sandblasting machine 1 and stops. This ensures that the steel bar can pass through the sandblasting machine 1 smoothly, while preventing the abrasive from splashing out through the gap due to the inlet and outlet being too large, thus saving the subsequent cleaning process. After the adjustment is completed, the steel bar is placed in the groove of the conveyor roller 301. Under the action of gravity, it will roll downwards. Finally, the steel bar will move to the center position of the multiple conveyor rollers 301. Then, the motor outside the mounting frame 2 is started, and its output end will drive a conveyor roller 301 to rotate. This conveyor roller 301 can drive several other conveyor rollers 301 to rotate synchronously through pulley 302 and belt 303. At this time, the steel rod will be driven to pass through the through groove 402 and enter the sandblasting machine 1. While the conveyor roller 301 is rotating, it can drive the gear rod 308 to rotate through belt 309. The gear rod 308 will drive the drive ring 305 to rotate through the bevel gear ring 306 that meshes with it. The drive ring 305 will drive the steel rod to rotate, thereby ensuring that the sandblasting is comprehensive enough. When one end of the steel rod passes through the sandblasting machine 1, it will contact another drive ring 305 and the conveyor roller 301 in turn, thereby ensuring that the other end of the steel rod can still be driven to move after entering the sandblasting machine 1. This ensures that the cleaning process can be carried out automatically without manual intervention.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for abrasive blasting of the surface of stainless steel bar, comprising a sandblaster (1), characterised in that: Both sides of the sand blasting machine (1) are fixedly connected with an installation frame (2), the two installation frames (2) are horizontally arranged, and the two installation frames (2) are internally provided with a conveying assembly (3). The conveying assembly (3) comprises a plurality of conveying rollers (301) which are rotatably connected to the inside of the installation frame (2) through bearings, and the plurality of conveying rollers (301) are arranged at the same level. The outer circumferential wall of the rotating shaft of each conveying roller (301) is fixedly sleeved with two pulleys (302), and the adjacent two pulleys (302) are sleeved with the same belt (303). The plurality of belts (303) are arranged in a staggered manner. A motor is fixedly installed on the outer wall of one end of the installation frame (2), and the output end of the motor is fixedly connected with one end of the rotating shaft of one of the conveying rollers (301). The outer wall of one end of the installation frame (2) is fixedly connected with a vertically arranged mounting cover (304). The mounting cover (304) is rotatably connected with a driving ring (305) on the inner circumferential wall thereof through a bearing. The driving ring (305) is tangent to the inner circumferential wall of the conveying roller (301). The outer circumferential wall of one end of the driving ring (305) is fixedly sleeved with a bevel gear ring (306). The top outer wall of the installation frame (2) is fixedly connected with a support seat (307). The support seat (307) is rotatably connected with a gear rod (308) through a bearing. The bevel gear on the end of the gear rod (308) is engaged with the bevel gear ring (306). The outer circumferential wall of the gear rod (308) is fixedly sleeved with a pulley (307), and the pulley (307) and one of the pulleys (302) are sleeved with the same belt (309).

2. The apparatus for abrasive blasting of a stainless steel bar surface according to claim 1, wherein: The outer wall of one end of the installation frame (2) is fixedly connected with a vertically arranged mounting cover (304). The mounting cover (304) is rotatably connected with a driving ring (305) on the inner circumferential wall thereof through a bearing. The driving ring (305) is tangent to the inner circumferential wall of the conveying roller (301). The outer circumferential wall of one end of the driving ring (305) is fixedly sleeved with a bevel gear ring (306).

3. A device for abrasive blasting of the surface of a stainless steel bar according to claim 2, characterized in that: The outer wall of one end of the installation frame (2) is fixedly connected with a vertically arranged mounting cover (304). The mounting cover (304) is rotatably connected with a driving ring (305) on the inner circumferential wall thereof through a bearing. The driving ring (305) is tangent to the inner circumferential wall of the conveying roller (301). The outer circumferential wall of one end of the driving ring (305) is fixedly sleeved with a bevel gear ring (306).

4. The apparatus for abrasive blasting of a stainless steel bar surface according to claim 1, wherein: The outer wall of one end of the installation frame (2) is fixedly connected with a vertically arranged mounting cover (304). The mounting cover (304) is rotatably connected with a driving ring (305) on the inner circumferential wall thereof through a bearing. The driving ring (305) is tangent to the inner circumferential wall of the conveying roller (301). The outer circumferential wall of one end of the driving ring (305) is fixedly sleeved with a bevel gear ring (306).

5. The apparatus for abrasive blasting of a stainless steel bar surface as defined in claim 1 wherein: The outer circumferential wall of the driving ring (305) is provided with a plurality of rubber strips (310) which are distributed at equal intervals. The belts (303), (309) and (405) are all toothed belts which are adapted to the toothed pulleys.

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